Titration Software DLWin Plus - METTLER TOLEDO · ⇒ The group Record is shown only for the DL70 and DL50 family titrators. ⇒ The option SYNC AB is shown only for the

Titration SoftwareDLWin Plus

Operating Instructions

Contents

Introduction

Installation of DLWin Plus

Extent of delivery of DLWin Plus

General Terms of Warranty and License for Software

DLWin white pages

DLBase light blue pages

DLEval dark blue pages

2 METTLER TOLEDO DLWin V3.0

Introduction

DLWin Plus is the METTLER TOLEDO titration software for METTLERTOLEDO titrators DL67 / DL70ES / DL77 or DL50 Graphix / DL53 / DL55 /DL58 or DL31 / DL38. DLWin Plus includes the programs DLWin, DLBaseand DLEval. Using DLWin Plus, several titrators can be operatedsimultaneously. DLWin Plus is easy to use in spite of the many possibilities itoffers.

DLWin is software for the PC that connects computers and titrators. Thisallows you to start and observe analyses on the computer; execute auxiliaryfunctions; view records and print them; view, print and save methods andinstallation data; view and print titration curves.

DLBase is the database application for METTLER TOLEDO titrationsoftware. It allows you to orderly display, compare and save themeasurement data from your titrations. Various filter criteria are available thatallow you to extract the desired data easily. You can define standardoperating procedures (SOPs) with which your results can be ordered andcompared. Data saved in DLBase can be transferred to Excel.

DLEval is used for the post evaluation and recalculation of titrations and theirresults. Using DLEval you can modify raw data found by the titrator, add andmodify results, calculate new statistics and document everything. In contrastto the algorithm based evaluation used by the titrator, DLEval uses agraphical representation of the titration curves. The found equivalence pointsand end points may thus deviate from one another.

METTLER TOLEDO DLWin V3.0 3

Installation of DLWin Plus

The installation program for the DLWin Plus program package starts up inEnglish. As soon as you start installing one of the three programs DLWin,DLBase or DLEval, you can select the language for the installation and theprogram independently of one another.

Install each of the three DLWin, DLBase and DLEval with the followingsuccession of steps:

• Close all open Windows programs before starting the installation.• Insert CD-ROM. The DLWin Plus greetings mask appears.

If the greetings mask for the installation of the three programs does notappear automatically, load the installation program Setup.exe directlyfrom the CD-ROM.

• In the greetings mask, click the program to be installed. Installation starts.• Follow the instructions given by the installation program.

Pay close notice to the remarks concerning the installation of DLBaseand DLEval!

• After installation of the three programs, leave the installation program withExit.

Extent of delivery of DLWin Plus

- CD-ROM with DLWin Plus (DLWin, DLBase and DLEval)- Operating instructions (English, German and French)


General Terms of Warranty and License for Software

By accepting the accompanying software the licensee of this METTLERTOLEDO software (hereinafter „the User“) concludes with METTLERTOLEDO GmbH, Im Langacher, CH-8606 Greifensee, Switzerland(hereinafter „METTLER TOLEDO“) a license agreement comprising thefollowing terms and conditions.If the User does not accept the terms of this agreement, he is required tonotify METTLER TOLEDO by registered letter, enclosing the software (returnof the product) and documentation within 10 days of receiving the software.Different or additional provisions must be expressly agreed upon in writing.

Scope and UseMETTLER TOLEDO grants to the User the non-exclusive and non-transferable right to use the METTLER TOLEDO software (hereinafter „thesoftware“) and the related documentary material in connection with aMETTLER TOLEDO instrument. The User acquires no other rights by thisagreement, in particular no right to ownership of the software or thedocumentary material.

CopiesThe User is entitled to make a copy of the software for purposes of databackup, but not if the software is protected against reproduction and bearsthe words “Copy protected”. The User is entitled to copy the documentarymaterial to the extent necessary for the agreed use. All copies and partialcopies of the software and the documentary material remain the property ofMETTLER TOLEDO. The User undertakes to keep Reports of the numberand location of all copies.

WarrantyWithin one year of delivery METTLER TOLEDO will make good anysignificant deficiencies in the software free of charge, or at its discretionsupply a replacement, provided the User reports the deficiencies immediatelyafter they are discovered. If the deficiencies cannot be remedied byMETTLER TOLEDO, the User may withdraw from this agreement, in whichcase at most the single license fee will be refunded.Deficiencies within the meaning of this warranty exist if the software does notconform to the specifications agreed upon in writing and thereby is not, oronly to a severely reduced extent, suitable for the agreed use. The warrantyextends only to reproducible deficiencies.METTLER TOLEDO disclaims all other liability relating to use of the software(including loss of data) and for the results obtained, in particular any liabilityfor consequential damage.


ConfidentialityThe User declares that the software and the documentary material will not,either wholly or in part, be made accessible in any form to third parties, madepublic or utilized to an extent beyond the agreed use. The User makes sureby means of instructions, agreements and other suitable precautions that allpersons having access to the software and the documentary material abideby this declaration.

DurationThis agreement becomes effective on receipt by the User of the subject ofthe agreement, and remains in force for as long as the software is used. Theagreement can be terminated by the User at any time, whereupon no claimarises for a refund of the license fee.METTLER TOLEDO may terminate the agreement without prior notificationat any time if the User violates any of the obligations, in particular thosepertaining to confidentiality.

TransferabilityThe User is not entitled to transfer or surrender any rights or obligationsarising from this agreement without the prior and written consent ofMETTLER TOLEDO.

Applicable law, venueThe contractual relationship between the parties is subject exclusively toSwiss substantive law. The place of jurisdiction is Zurich, Switzerland.However, METTLER TOLEDO is at liberty to seek redress at the appropriatecourt at the User’s place of domicile.


Contents of DLWin V3.0

Part I Quick guide ......................................................................................................8

1 Installation of DLWin ........................................................................................8

2 Connection ........................................................................................................8

3 Titrators .............................................................................................................8

4 DLWin.................................................................................................................9

5 Setup files..........................................................................................................9

6 User interface ..................................................................................................12

7 Working with the toolbars ..............................................................................13

Part II Detailed description.......................................................................................15

1 DL31 and DL38 ................................................................................................161.1 Installing the computer at the titrator .................................................................161.2 Starting DLWin..................................................................................................161.3 Configuration of the System window.................................................................161.4 Configuration of the Titrator window..................................................................171.5 Saving the Setup file .........................................................................................191.6 Working with Setup files....................................................................................201.7 Starting a KF determination ..............................................................................201.8 Starting a Bromine number determination (only DL38) .....................................251.9 Sample data entry.............................................................................................271.10 Titration progress ..............................................................................................281.11 Other functions in the Analysis menu................................................................301.12 Auxiliary functions .............................................................................................311.13 Further functions ...............................................................................................33

2 DL50, DL53, DL55 and DL58...........................................................................352.1 Installing the computer at the titrator .................................................................352.2 Starting DLWin..................................................................................................352.3 Configuration of the System window.................................................................362.4 Configuration of the titrator window...................................................................372.5 Saving the setup file..........................................................................................402.6 Working with setup files ....................................................................................402.7 Sample data entry.............................................................................................412.8 The titration procedure ......................................................................................442.9 Titration progress ..............................................................................................472.10 Other functions in the Analysis menu................................................................492.11 Auxiliary functions .............................................................................................502.12 Further functions ...............................................................................................54


3 DL67, DL70ES and DL77................................................................................ 553.1 Installing the computer at the titrator ................................................................ 553.2 Starting DLWin ................................................................................................. 553.3 Configuration of the System window ................................................................ 553.4 Configuration of the titrator window .................................................................. 573.5 Saving the setup file ......................................................................................... 593.6 Working with setup files.................................................................................... 603.7 Sample data entry ............................................................................................ 613.8 The titration procedure ..................................................................................... 643.9 Titration progress ............................................................................................. 673.10 Other functions in the Analysis menu ............................................................... 693.11 Auxiliary functions ............................................................................................ 703.12 Further functions .............................................................................................. 723.13 Synchronizing the working areas (only DL77) .................................................. 73

4 Working in the System window..................................................................... 744.1 Working with stored records ............................................................................. 744.2 Different window views..................................................................................... 844.3 Working with files ............................................................................................ 84

5 Description of Functions ............................................................................... 885.1 System window ................................................................................................ 885.2 Titrator window ................................................................................................. 965.3 Description of the toolbars............................................................................. 112

6 Appendix ....................................................................................................... 1166.1 Hardware and software requirements ............................................................ 1166.2 Installation of the RS232C interfaces ............................................................. 1166.3 DLConv .......................................................................................................... 1176.4 Deinstallation.................................................................................................. 1176.5 Troubleshooting.............................................................................................. 118

7 Index.............................................................................................................. 119


Part I Quick guide

This Quick guide will help you work with DLWin. The most important steps forroutine procedures are described. For more detailed information, please usethe subsequent chapters.

1 Installation of DLWin

To install DLWin on your hard disc:• Insert CD-ROM.• Follow the instructions given by the installation program.

2 Connection

To connect the titrator and the computer successfully, both must haveidentical communication parameters. Whenever possible, use default valuesfor communication parameters on the titrator.

3 Titrators

DL50, DL53, DL55, DL58 and DL31 / DL38:In Setup / Peripherals choose Defined for computer.

DL67, DL70ES and DL77:In Installation / Peripherals choose Computer for System.


4 DLWin

Click this button in the System window.

A dialog is started in which the communication parameters are shown.

Select Reduced under Communication protocol in the following cases:- If you wish to connect to a DL31 or DL38.- If you wish to connect to a DL77 and intend to synchronize the working

areas Analysis A and Analysis B.

Use OK to confirm the communication parameters. If the connection wassuccessful the Titrator window will appear.

5 Setup files

Setup files facilitate your daily work with DLWin. These files containconfiguration data relevant for your work with the titrator. These includedirectory settings, parameters for file conversion, communication parameters,window sizes and positions and others. After connection, it is important thatyou enter your personal preferences in Setup / Set preferences... in theTitrator window. Also enter the directory to which you wish to have your filesexported for DLBase in the System window under Setup / DLBasedirectory (this directory must correspond to the DLBase import directory).

Note:⇒ Create the directories before you define your preferences! Please note

that directory names in DLWin may be no more than 8 characters long.


Note:⇒ The group Record is shown only for the DL70 and DL50 family titrators.⇒ The option SYNC A<->B is shown only for the DL70 family and can be

used only for the DL77.

When you open such a setup file, DLWin will connect to the titrator andconfigure it with all the preferences you specified.The group Record in the illustration above is used to define recordparameters for data transferal. Selecting All data will cause the titrator tosend all data to the computer that can be imported by DLBase. Thispreference will not, however, affect the printout. Only the data you select inthe Record / Report function of the titrator is actually printed.

The titrator sends records to the computer only if it has been selected as theoutput unit. For this reason always use ‘Computer‘ or ‘Print. + Comp.‘ as theoutput.


Examples for method parameters in the record section:

DL67, DL70ES and DL77:Sample......Record Printer + Computer (parameters pertain to printer)StatisticsRecord Printer + Computer (parameters pertain to printer)This record function is required for the computer when statistical data is to betransferred.

DL50, DL53, DL55 and DL58:Sample......Report Printer + Computer (parameters pertain to printer)

DL31 and DL38:No.......Report Print. + Comp. (parameters pertain to printer)

Once you have entered all parameters save your preferences using Setup /Save in the System window.Setup data from older versions of DLWin can be converted upon opening thefile. Control the parameters after conversion.

I mportantImport your data regularly (daily) to the database application DLBase.Afterwards empty the records directory of DLWin either by deleting the dataREC*.* or by moving it to another directory.


6 User interface

DLWin’s user interface consists of a System window and one Titratorwindow for each connected titrator.The following illustration shows the Titrator window of a DL38:

Note:⇒ For a DL31 or DL38, the display depends on the type of determination

(KF determination, concentration determination, drift determination...).⇒ The online data windows can be printed by first clicking the desired

window with the mouse then clicking the button with the printer symbol.

Online results

Toolbar Titrator window

Online data curveor measuredvalue table

Status bar


7 Working with the toolbars

The toolbar buttons have been arranged to support routine procedures (e.g.typical analyses are started with the first 3 buttons from the left to the right).Placing the cursor on a symbol of the toolbar gives rise to a short explanationof the symbol in the status bar.

System window toolbar:

Toolbar for DL31 / DL38:

Enter sample data

Start a determination

Send confirmation to the titrator

Switch on / off online results

Switch on / off online curves / measured value tables

Auxiliary functions

Get and show titrator status

Reset all activities

Open an existing setup (open setup file)

Connect a titrator

Select a record

Show measured value table(s)

Print window contents

DLWin help


Toolbar for DL50 / DL53 / DL55 / DL58:

Toolbar for DL67 / DL70ES / DL77:

Delete sample list(in the titrator)

Switch working area(DL77 only)


Part II Detailed description

The first three chapters of the detailed description explain how to work withthe different METTLER TOLEDO titrator families.

Chapter 1: DL31 and DL38Chapter 2: DL50, DL53, DL55 and DL58Chapter 3: DL67, DL70ES and DL77

In these chapters you will find instructions and notes regarding the use of thedifferent titrators. The steps in a procedure are explained using examples.

Chapter 4 also uses examples to show you how to work with the Systemwindow. Here you will mainly find commands for the work with titrationrecords.

Chapter 5 describes the functions of DLWin. All commands in the Titratorwindow and System window menus are discussed here.

Chapter 6 gives you information concerning system requirements andinstallation. Section 6.5 shows a table with problems that could arise andtheir solutions.


1 DL31 and DL38

1.1 Installing the computer at the titrator

• Click the 'Setup' button.• Select the menu ‘Peripherals’.• Click the soft key 'OK'.• Select the menu entry 'Computer' followed by ‘Modify’.• Select 'Defined' and confirm with ‘OK‘.• Click the soft key 'OK', until you return to Resources.

1.2 Starting DLWin

DLWin consists of a System window and one or several Titrator windows.The Titrator window allows determinations and a reduced number ofauxiliary functions, also available at the titrator, to be started. Also backupcopies of methods, resources and the titrator’s user data memory can bemade.The System window has additional functions not available on the titrator,such as the administration of records.

When you select the DLWin symbol in the Windows start menu, DLWin willbe started. The System window appears on the monitor.

1.3 Configuration of the System window

When working with DLBase, use Set preferences / DLBase directory toenter the directory you defined as the import directory in DLBase. You canalso do this at a later time.

Note:⇒ Use a directory name with 8 characters or less.


To establish a connection between the titrator and the computer, click thefollowing button in the System window:

New connection

In the dialog New connection enter the port and communication parametersand the name of the titrator. We recommend using the following parameters:Baudrate: 4800, Parity: Even, Data bits: 8, Stop bits: 1.The communication protocol for a DL31 or DL38 must always be Reduced.

Click OK once you have entered the parameters according to the dialogabove. If the parameters have been set correctly in DLWin and at the titrator,the Titrator window will appear.

1.4 Configuration of the Titrator window

Once you have established a connection to the titrator, you should configurecertain parameters. These must then be saved in a setup file.

First create the appropriate directories. We recommend using the followingestablished procedure.


Create a directory tree corresponding to the following:

You need a directory for saving your records (Record) and one for yourworking files (Work). We recommend setting up such a directory for eachconnected titrator. This will make it easier to find files later.


Once the directories have been created, DLWin may be configured byselecting Setup / Set preferences in the Titrator window:


Auto file names The names for the files are given by DLWin. Usethis setting whenever possible.

DLBase export Use this setting when working with DLBase.Working directory Directory in which your working files are saved

(method listing, method copy, sample data ...).Record directory Directory in which your records are saved.Auto conversion Selecting this option causes your record files to be

converted to one of the following formatsautomatically. These formats have been selectedto allow data to be imported to other programswith ease.ASCII: Tabulator separated text fileEXCEL: Semicolon separated text fileDBASE: \field\,\field\ separated text file

The titrator sends records only when the following conditions have been met:- In the method, ‘Computer‘ or ‘Print.+Comp.’ were selected as the output

under Report.- The report send mode in DLWin was left on Spontaneous (default value

under Analysis / Report / Set report send mode...).

1.5 Saving the Setup file

Once you have entered the setup parameters described above, you shouldstore them in a setup file. To do this select Setup / Save or Save as... in theSystem window.After the Setup file has been saved you can control the parameters usingSetup / Show in the System window.


1.6 Working with Setup files

When you work with a setup file, the setup parameters described in thepreceding sections are saved as well as what you entered in the variousdialogs. You have two possibilities for working with a setup file.

1. Use this symbol in the System window to open a setup file.

2. You can also use the extension *.stp to link files to DLWin.exe.You then start DLWin with your configuration when you doubleclick the setup file.

1.7 Starting a KF determination

This button in the Titrator window starts a determination.


1.7.1 The titrator is inactive

When you start a KF titration at an inactive DL31 or DL38, a pre-titration isfirst carried out. Once the titrator is in the stand-by mode, the actual titrationcan be performed.

Under Method you can either enter the method number directly or use theSelect... button to choose the method from a list of all methods of the titrator.

1.7.2 The titrator is in standby

In the following example, the KF method with method No. 100 was selected.Reclicking the Run button starts the following dialog:

Here you select the type of determination.


Sample determination

For a sample determination, the following dialog appears:

Data entry Here you choose whether you wish to entersample data at the computer or at the titrator.

Method parameters Here you can change the method parameters thatwere entered in the method dialog. Parametersshown in gray were fixed in the method andcannot be changed.

From this time onwards the process can only be stopped with the Resetbutton.

If you change the parameter Exp. Water cont. [%], then the limits arerecalculated for sample entry in the next message:


After the box shown above appears, you can add the sample and confirmthis. Sample data may be entered before or after adding the sample.If the sample size (weight, volume, pieces) is 0, you will be asked for thesample data after the titration.

Use this button to send your confirmation to the titrator.

Concentration determination

For a concentration determination, a dialog will appear requesting you toselect the standard with which you intend to perform the determination.

After selecting the standard the following dialog is shown:



KF standard Here you can change the water content and batchif necessary.



After the request “Please add sample” appears, you can add the sampleand confirm this. Sample data may be entered before or after adding thesample.If the sample size (weight, volume, pieces) is 0, you will be asked for thesample data after the titration.

Drift determination

A drift determination will be started without any further queries.


1.8 Starting a Bromine number determination (only DL38)

Use this button in the Titrator window to start a determination.

The DL38 must be inactive in order to start a Bromine No. determination.The following dialog will appear:

Under Method you can either enter the method number directly or use theSelect... button to choose the method from a list of all methods saved by thetitrator.

Note:⇒ The method must be a Bromine No. method.

The following dialog appears:





After the request “Please add sample” appears, you can add the sampleand confirm this. Sample data may be entered before or after adding thesample.If the sample size (weight, volume, pieces) is 0, you will be asked for thesample data after the titration.


1.9 Sample data entry

Sample data can be entered as soon as the request “Please add sample”appears, either before or after confirming the sample addition. With a DL31or DL38, only the data for the current sample can be entered. If the samplesize (weight, volume, pieces) is 0, you will be asked for the sample data afterthe titration.

Click this button when you wish to Enter the sample data.

In the subsequent dialog the sample data must be entered:

Sample ID Here you can enter the sample ID if this parameterwas set to be entered on request in the method.

Weight The weight can be entered manually ortransmitted automatically from a balanceconnected to the computer.

Note:⇒ The button Balance appears in gray if there is no balance connected to

the computer or the type of data entry was not set to be weight.


1.10 Titration progress

DLWin allows you to watch the titration progressing. The display seen in theTitrator window depends on the type of determination (drift, concentration,sample or Bromine No. determination).During pre-titration or standby titration no data are sent to the computer. Thetitrator status is shown in the status bar or you can request it using thefollowing button.

This button gets and shows you the titrator status.

1.10.1 Online data transmission during the determination

You can watch the titration progressing during the determination. Choosebetween viewing the titration curve and the measured value table.

This button allows you to switch on the online curve / table.

This button allows you to switch off the online curve / table.

Once the online data transmission is in progress, use the upper button toswitch between online curve and online measured value table.If online results are being shown, the Titrator window is divided in two. Theleft side of the window shows the curve or measured value table, the rightside displays the results.The contents of the window can be printed by clicking the desired windowside then clicking the print symbol.

This button allows you to view online results during titration.

With this button you switch off online results.

Note:⇒ To receive online results, ‘Computer’ or ‘Print. + Comp.’ must have been

entered under Report in the method.



1.11 Other functions in the Analysis menu

1.11.1 Get method data

When you use the analysis menu and select Analysis / Sample data / Getmethod data, you receive a display of the corresponding method data.

1.11.2 Get report

If the report send mode has been set to On request, reports are not sentspontaneously. You must request the reports from the titrator. The titrator inturn waits until you request a report.

To get a report from the titrator, in the Analysis menu under Analysis /Report select Get report. This causes the report to be sent from the titrator.

1.11.3 End series

Using Analysis / Miscellaneous / End series you can end a series runningon the DL38.

Note:⇒ A series can also be ended from the DL38.

See the DL38 Operating Instructions.


1.12 Auxiliary functions

DLWin can be used to start and stop auxiliary functions.

1.12.1 Dispense

With this button you select the auxiliary function Dispense.

The Burette volume [mL], Filling rate [%] and the Dispense volume [mL]must be selected or entered. Use OK to start the auxiliary function.

1.12.2 Rinse burette

The auxiliary function rinse burette can only be selected from the menu. Thisis done by selecting Auxiliary functions / Rinse burette.


1.12.3 Stirrer

This button selects the auxiliary function Stirrer.

You must enter the stirring Speed [%]. Use Start to switch on the stirrer.Click the stirrer button once more and click Stop to stop the stirrer.

1.12.4 Pump: empty / fill

This button selects the auxiliary function Pump: empty / fill.

Start switches on the pump. To fill, the blue pump button on the titratormust be pressed. Clicking the pump button again and selecting Stop endsthe pumping.


1.13 Further functions

1.13.1 Backup

Copies of methods and resources:Methods and resources can be saved with the aid of DLWin. Data stored thisway can be sent back from the computer to the titrator.Methods saved on the computer can be started again without having to besent back to the titrator.

• To make backups of methods or resources, select Get backup in theBackup Menu.

To send a copy of a method or resource back to the titrator, select Sendbackup / Method... or Resources in the Backup menu.

1.13.2 Memory copy

The contents of the entire user data memory can be saved on the computer.To do this, select Get backup / Memory copy... in the Backup menu.

Once you have used Reset to terminate all activities, OK can be used torequest the memory copy. The process takes several minutes and is finishedwhen you receive the following message:


The memory copy can be sent back to the titrator using the commandsBackup / Send data / Memory copy....

Note:⇒ While the Message shown below is displayed the operating system is

blocked. This implies that no other activities can be performed during thistime.

I mportantWhen a memory copy is sent to the titrator, all data in the titrator’s usermemory are overwritten (methods, resources).

1.13.3 Listings

Readable printouts of methods, method directories and resources can berequested. To do this, select Get listings under Backup.


2 DL50, DL53, DL55 and DL58


• Click the 'Setup' button.• Select the menu ‘Peripherals’.• Click the soft key ‘Modify.• Select the menu entry 'System' followed by ‘Modify’.• Use ‘Modify’ to set parameter to ‘Defined’.• Select the menu entry ‘Instrument type’ followed by the soft key ‘Modify’.• Select the menu entry 'Computer' then ‘Modify’.• Set the following parameters to these values (default parameters):

Baudrate: 4800Parity: EvenData bits: 8 BitsStop bits: 1 BitBar code to computer: NoCharacters: ASCIISend mode: SpontaneousCommunication protocol: NormalStart/Stop character: ' { ' / CR

• Confirm your selections with 'OK' until the titrator shows the menu‘Resources’.

2.2 Starting DLWin


When you select the DLWin symbol in the Windows Start menu, DLWin willbe started. The System window appears on the monitor.





To establish a connection between the titrator and the computer, click thefollowing button in the System window:

New connection

In the dialog New connection select the port and communication parametersand enter the name of the titrator. We recommend the following parameters:Baudrate: 4800, Parity: Even, Data bits: 8, Stop bits: 1, Communication protocol: Normal.Click OK once you have entered the parameters according to the dialogabove. If the parameters have been set correctly in DLWin and at the titrator,the Titrator window will appear.


2.4 Configuration of the titrator window






Once the directories have been created, DLWin may be configured byselecting Setup / Set preferences in the Titrator window.


Auto file names The names for the files are given by DLWin. Usethis setting whenever possible.

DLBase export Use this setting when working with DLBase.Record Decide here whether you wish to have the data

defined in the titrator’s report function sent or allrequired data.

Working directory Directory in which your working files are saved(method listing, method copy, sample data, ...).

Record directory Directory in which your records are saved.Auto conversion Selecting this option causes your record files to be

converted to one of the following formatsautomatically. These formats have been selectedto allow data to be imported to other programswith ease.ASCII: Tabulator separated text fileEXCEL: Semicolon separated text fileDBASE: \field\,\field\ separated text file


Note:⇒ If you selected ‘All data’ under Report and ‘Printer + Computer’ as the

output in the method function, then the report parameters you selected inthe method function will be printed.

Records are sent by the titrator only when the following conditions have beenmet:

- In the method under Report, ‘Computer’ or ‘Printer + Computer’ wereselected as the output.

- The report send mode in DLWin was left on Spontaneous (default valueunder Analysis / Report / Set report send mode...).


2.5 Saving the setup file

Once you have entered the setup parameters described above, you shouldsave them in a setup file. To do this select Setup / Save or Save as... in theSystem window.After the setup file has been saved, you can control the parameters usingSetup / Show in the System window.

2.6 Working with setup files

When you work with setup files, the setup parameters described in thepreceding sections are saved as well as what you entered in the variousdialogs.You have two possibilities for working with a setup file.

1. Use this button in the System window to open a setup file.




Sample data can be entered at the computer. First make sure that noanalysis is running and the remote control is switched on.

Start the function Enter sample data to edit the sample data.

In the following dialog, which appears after you have selected the functionEnter sample data, you can either open an existing sample data file (file withthe extension SSD), or you can select a method stored in the titrator forwhich you wish to enter sample data. The dialog Enter sample data lookslike this:

New sample data You want to set up a new sample data file. Youmust enter the Method ID or use Select... to get alist of all methods stored in the titrator. Choose amethod from this list.

Stored sample data You want to open a previously stored sample datafile. You must enter the Series ID or use Select...to specify the file you wish to open.


After you have selected and confirmed a method or a series, the dialogSeries data appears:

If you selected the option New sample data in the previous dialog, you mustenter the Series ID, the Number of samples and the User.If you selected Stored sample data, then all entries in this dialog are filled inautomatically.

You may use 32 characters for the Series ID, but only the first 5 are used forthe file name, which is put together as shown here:

SERyyyyy.SSD (yyyyy are the first 5 characters of the series ID).


After confirming with OK the dialog sample data appears:

Modify This button (or a double click on the desiredsample ) calls forth a dialog with which you canmodify sample data.

Save This button stores the sample series.Run With this button you first save the sample series

then you start it (or add it to the sample datamemory of the titrator). The sample series isalways started at this point if you used the dataentry option At computer.

If you selected Modify then the following dialog appears, with which you canmodify your sample data.

In this dialog you can enter the Sample ID, the Volume or Weight, theTemperature and the Correction factor. If you click on the button Balance,


the balance transmits the current weight automatically and you can see thevalue in the field.The buttons << or >> allow you to skip from one sample to the next. If youconfirm the dialog with OK, you return to the overview of the sample data.


the computer or the type of data entry was not set on weight.⇒ You can also start a sample series without first entering the sample data.

You must, however, make sure that the sample data are saved when thetitrator requests them. It is possible, for instance, to start the sampleseries with only the data for the first sample. During the titration thesample data for the other samples can be entered or modified. Should thetitrator request the sample data from the computer and the sample size is0, then the data must be entered at the titrator.

2.8 The titration procedure

Make sure that the titrator’s remote control is switched on.

Reset all activities.

Delete sample list in the titrator if there are still sample data in thetitrator memory.

Call the dialog to start a sample series.

After you have selected RUN, the dialog Start sample series appears:


Entering the Series ID of previously stored sample data and leaving the fieldcauses the other fields to be filled in automatically. However, if you enter Attitrator for the Data entry, you must enter the Method ID, Number ofsamples and the User.After you confirm your choice with OK, you will see the following message onyour monitor:

Afterwards you can enter sample data at the titrator, should you haveselected At titrator as the data entry type (see also the OperatingInstructions DL50/DL53/DL55/DL58).If you are working neither with a sample changer nor the ‘Auto stand’ astitration stand, the sample must be confirmed as soon as the followingrequest appears:


This message disappears after a few seconds, but the request forconfirmation remains visible in the status bar until the confirmation has beensent to the titrator.

Clicking this button on the toolbar sends the requested confirmationto the titrator.

After this confirmation the titrator starts the sample analysis.

When the analysis has been completed, the following message appears. Itindicates that the record has been saved:

Note:⇒ In the Report function of the method you must have specified that the

records should be sent to the computer (output must be 'Computer' or'Printer + Computer').

Example of a Report function:

ReportOutput . . . . . . . . . . . Computer


2.8.1 Adding several sample series (only DL55 and DL58)

When working with a DL55 or DL58, you have the option of adding up to twoadditional sample series after the first has been started. The prerequisite isthat the maximal number of samples may not be exceeded.

This symbol allows you to add additional series to the running one.

The dialog “Start sample series” appears, as described in the previoussection. The message you receive after confirming this dialog is the following:

If you try to start a further sample series after you have started or added 3series, or if you exceed the maximum number of samples, you will receive anerror message.


DLWin allows you to watch the progress of the titration. You can find outwhat the titrator is currently doing by requesting the titrator status.

This symbol calls up the Titrator status.


2.9.1 Online data transmission during the titration

During an analysis you can view the titration progressing by switching on theonline transmission of data.

Show online curve / measured value table (2x).

Switch off online curve / measured value table.

Once the data transmission has been turned on, use the upper button toswitch back and forth between online curve and online measured value table.After choosing online transmission, the Titrator window is divided in two.The left side of the window shows the curve or measured value table whilethe right side displays the results.The contents of each window part can be printed by clicking the desired sidethen clicking the print button.

Show online results during titration.

Switch off online results during titration.

Note:⇒ To get online results, the output in the Report function of the method you

are using must be either ‘Computer‘ or ‘Printer + Computer‘.



Besides the functions described above you will find the following otherfunctions in the Analysis menu.

2.10.1 Get series data

Use Analysis / Sample data / Get sample data to display the sample dataof the selected method.

2.10.2 Get report

If the report send mode was set to On request, reports are not sentspontaneously. You must request the reports from the titrator. The titrator inturn waits until you request the report.

Reports can be requested from the titrator by selecting Get report in theAnalysis menu under Report. The titrator sends the report.


2.10.3 Confirm SYNC code

With Analysis / Miscellaneous / Confirm SYNC code, a SYNC-code that isbeing requested by a SYNC send/wait function is confirmed. The methodcontinues after you have confirmed the SYNC code.


The most important auxiliary functions are available on buttons of the toolbar.The following sections describe the use of these functions.

2.11.1 Dispense


Select the Burette drive, Burette volume [mL], and the Dispense volume[mL]. After confirming with OK the function will be carried out.


This command is available only via the menu. Select Auxiliary functions /Rinse burette in the Titrator window.


2.11.3 Stirrer

Use this button to select the function Stirrer.

Select the Titration stand and the stirring Speed [%]. Use Start to start thestirrer. Clicking the stirrer button again followed by Stop ends the stirring.

2.11.4 Measure

With this button the auxiliary function Measure potential is selected:

With this Auxiliary function you can measure potentials with potentiometricsensors, like glass electrodes or ISE sensors.


After confirming with OK, the measurement protocol will be shown in theTitrator window:

With this button the auxiliary function Measure voltage / current isactivated:

This auxiliary function allows you to measure with polarized sensors, such asdouble platinum pin electrodes.A measurement protocol is shown in the Titrator window after you confirmthis dialog with OK.


2.11.5 Sample changer

With this button you can change the position of the sample lift.

With this button you can rotate the turntable.

This button activates pumps or dispensers connected to the samplechanger outputs.



2.12.1 Backup

Copies of methods and resources:Methods and resources can be saved with the aid of DLWin. Data stored thisway can be sent back from the computer to the titrator.Methods saved on the computer can be started again without having to besent back to the titrator first.

• To make backups of methods or resources, select Get backup in theBackup Menu.

To send a copy of a method or resource back to the titrator, select Sendbackup / Method... or Resources in the Backup menu.

2.12.2 Memory copy

The contents of the entire user data memory can be saved on the computer.To do this, select Get backup / Memory copy... in the menu Backup.The following dialog appears:

The memory copy can be sent back to the titrator using the commandsBackup / Send data / Memory copy....

Note:⇒ A memory copy can be made only when using the communication

protocol Normal.


3 DL67, DL70ES and DL77


• Select the menu 'Installation'.• Select the menu 'Peripherals'.• Select the entry 'System'.• Select 'Computer'. Make sure that the following settings are defined under

'Computer' (default- values):Characters: ASCIISend mode: SpontaneousCommunication protocol: NormalStart/Stop character: ' { ' / CR

• Click EXIT.• Set the following communication parameters:

Baudrate: 4800Parity: EvenData bits: 8 BitsStop bits: 1 Stop bit

• Click EXIT until you have returned to the main menu.

3.2 Starting DLWin


When you select the DLWin symbol in the Windows start menu, DLWin willbe started. The System window appears on the monitor.





To establish a connection between the titrator and the computer, click thefollowing button in your System window:

New connection

In the dialog New connection select the connection (Port ) andcommunication parameters and enter the Titrator name.We recommend the following parameters:Baudrate: 4800, Parity: Even, Data bits: 8, Stop bits: 1,Communication protocol: Normal.

Note:⇒ If you are planning to synchronize methods running in the working areas

A and B of the DL77, you must select Reduced for the Communicationprotocol.

Click OK once you have entered the parameters according to the dialogabove. If the parameters have been set correctly in DLWin and at the titrator,the Titrator window will appear.


3.4 Configuration of the titrator window






Once the directories have been created, DLWin may be configured byselecting Setup / Set preferences in the Titrator window.


Auto file names The names for the files are assigned by DLWin.Use this setting whenever possible.

DLBase export Use this setting when working with DLBase.SYNC A<->B Use this setting when you intend to synchronize

methods running in working areas Analysis A andAnalysis B.

Record Decide here whether you wish to have the datadefined in the titrator’s record function sent or allrequired data.

Working directory Directory in which your working files are saved(method listing, method copy, sample data ...).

Record directory Directory in which your records are saved.


Auto conversion Selecting this option causes your record files to beconverted to one of the following formatsautomatically. These formats have been selectedto allow data to be imported to other programswith ease.ASCII: Tabulator separated text fileEXCEL: Semicolon separated text fileDBASE: \field\,\field\ separated text file

Note:⇒ If you selected ‘All data’ under Record and ‘Printer + Computer’ as the

output in the method function, then the report parameters you selected inthe method function will be printed.

Records are sent by the titrator only when the following conditions have beenmet:- In the method under Record, ‘Computer’ or ‘Printer + Computer’ were

selected as the output.- The record send mode in DLWin was left on Spontaneous (default value

under Analysis / Report / Set report send mode...).

3.5 Saving the setup file

Once you have entered the setup parameters described above, you shouldsave them in a setup file. To do this select Setup / Save or Save as... in theSystem window.After the setup file has been saved, you can control the parameters usingSetup / Show in the System window.


3.6 Working with setup files

When you work with setup files, the setup parameters described in thepreceding sections are saved as well as what you entered in the variousdialogs.You have two possibilities for working with a setup file.

1. Use this button in the System window to open a setup file.




Sample data can be entered at the computer. First make sure that noanalysis is running.

Start the function Enter sample data to edit the sample data.

In the following dialog, which appears after you have selected the functionEnter sample data, you can either open an existing sample data file (file withthe extension MSD), or you can select a method stored in the titrator forwhich you wish to enter sample data. The dialog Enter sample data lookslike this:

New sample data You want to set up a new sample data file. Youmust enter the method ID or use Select... to get alist of all methods stored in the titrator. Choose amethod from this list.

Stored sample data You want to open a previously stored sample datafile. You must enter the method ID or use Select...to specify the file you wish to open.


After you have selected and confirmed a method, the dialog Method dataappears:

All the parameters in this dialog box may be modified. Use << and >> to getto the method data of the previous or next sample function. After confirmationwith OK the dialog sample data appears:

Modify This button (or a double click on the desiredsample ) calls forth a dialog with which you canmodify sample data.

Save This button stores the sample data..Run With this button you first save the sample data

then start the method(or add it to the sample datamemory of the titrator, see below). The method isalways started at this point with the data entryoption At computer. If you used the option Enter


user name after ‘RUN’, the user name will berequested before the start.

If you selected Modify then the following dialog appears, with which you canmodify your sample data.

In this dialog you can enter an ID2, the volume or weight, and the correctionfactor. If you select the button Balance, the balance transmits the currentweight automatically and you can see the value in the entry field.The buttons << or >> allow you to skip from one sample to the next. If youconfirm the dialog with OK, you return to the overview of the sample data.


the computer or the type of data entry was not set on weight.⇒ You can also start a sample series without first entering the sample data.

You must, however, make sure that the sample data are saved when thetitrator requests them. It is possible, for instance, to start the sampleseries with only the data for the first sample. During the titration thesample data for the other samples can be entered or modified. Should thetitrator request the sample data from the computer and the sample size is0, then the data must be entered at the titrator.


3.8 The titration procedure

Make sure that the titrator is not in a submenu of the ‘Analysis’ menu.

Reset all activities.

Select the working area you want to use (only DL77).

Delete sample list in the titrator if there are still sample data in thetitrator memory.

Call the dialog to start a sample series.

After you have selected RUN the dialog Start method appears:

The group Data entry determines where you must enter the sample data:

At titrator The sample data must be entered at the titrator.At computer The sample data must be entered at the

computer.At computer (before RUN) The sample data must be entered at the

computer. It must be complete before the methodis started.


If you confirm this dialog with OK, the following message appears:

Afterwards you can enter sample data at the titrator if you selected At titratoras the data entry type (see also the Operating Instructions DL67/ DL70ES/DL77).If you are working neither with a sample changer nor the ‘Auto stand’ astitration stand, the sample must be confirmed as soon as the followingrequest appears:

This message disappears after a few seconds, but the request forconfirmation remains visible in the status bar until the confirmation has beensent to the titrator.

Clicking this button on the toolbar sends the requested confirmationto the titrator.

After this confirmation the titrator starts the analysis.

When the analysis has been completed, the following Message appears. Itindicates that the record has been saved:


Note:⇒ In the Record function of the method you must have specified that the

records should be sent to the computer (output must be 'Computer' orPrinter + Computer).

Example of a Record function:

RecordOutput unit. . . . . . . . . . Computer

3.8.1 Adding several methods (only DL70ES and DL77)

When working with a DL70ES or DL77, you have the option of adding up to 9additional methods after starting one method (DL77: per working area).

This symbol allows you to add additional methods to the running one.

The dialog Start method appears, as described in the previous section. Themessage you receive after confirming this dialog is the following:

If you try to add another method once 10 methods have been started oradded, you will receive an error message.



DLWin allows you to watch the progress of the titration. You can find outwhat the titrator is currently doing by requesting the titrator status.

This symbol calls up the titrator status.

3.9.1 Online data transmission during the titration

During an analysis you can view the titration progressing by switching on theonline transmission of data.

Show online curve / measured value table (2x).

Switch off online curve / measured value table.

Once the data transmission has been turned on, use the upper button toswitch back and forth between online curve and online measured valuetable.After choosing online transmission, the Titrator window is divided in two.The left side of the window shows the curve or measured value table whilethe right side displays the results.The contents of each window part can be printed by clicking the desired sidethen clicking the print button.

Show online results during titration.

Switch off online results during titration.

Note:⇒ To get online results, the output in the Report function of the method you

are using must be either ‘Computer‘ or ‘Printer + Computer‘.




Besides the functions described above you will find the following otherfunctions in the Analysis menu.

3.10.1 Get method data

Use Analysis / Sample data / Get method data to display the method dataof the selected method.

3.10.2 Get record

If the record send mode was set to On request, records are not sentspontaneously. You must request the records from the titrator. The titrator inturn waits until you request the record.Records can be requested from the titrator by selecting Get record in theAnalysis menu under Record. The titrator sends the record.

3.10.3 Confirm SYNC code

With Analysis / Miscellaneous / Confirm SYNC code, a SYNC-code that isbeing requested by a SYNC send/wait function is confirmed. The methodcontinues after you have confirmed the SYNC code.



The most important auxiliary functions are available on buttons of the toolbar.The following sections describe the use of these functions.

3.11.1 Dispense


Select Burette drive, Burette volume [mL], and Dispense Volume [mL] tobe dispensed. After confirming with OK the function will be carried out.


This command is available only via the menu.Select Auxiliary functions / Rinse burette in the Titrator window.


3.11.3 Stirrer

With this button you select the function Stirrer.

Select the Titration stand and the stirring Speed [%]. Use Start to turn thestirrer on. Clicking the stirrer button again followed by Stop ends the stirring.

3.11.4 Measure

With this button the auxiliary function Measure is selected.


After confirming with OK, the measurement protocol will be shown in theTitrator window:


3.12.1 Backup

Copies of methods and resources:Methods and installation data can be saved with the aid of DLWin. Datasaved this way can be sent back from the computer to the titrator.Methods saved on the computer can be started again without having to besent back to the titrator first.To make backups of methods or installation data, select Get backup in theBackup Menu.To send a copy of a method or installation data back to the titrator, selectSend backup / Method... or Installation data in the Backup menu.

3.12.2 Memory copy

The contents of the entire user data memory can be saved on the computer.To do this, select Get backup / Memory copy... in the menu Backup.


The following dialog appears:

DLWin will guide you through the individual steps.

The memory copy can be sent back to the titrator using Backup / Send data/ Memory copy....DLWin will guide you through the individual steps.

3.13 Synchronizing the working areas (only DL77)

The titrator’s SYNC function sends a numeric code via the RS port. You canuse this function to synchronize two methods running in the two workingareas A and B of a DL77. The titrator SYNC function does two differentthings:

SYNC Send: The function sends the numeric code then themethod proceeds.

SYNC Send/Wait: The function sends the numeric code. The methodwill proceed once the code is sent back.

In general the procedure is as described in the Interface description oftitrators DL67/DL70ES/DL77. However, please note the following:

• In the dialog Set preferences select the entry SYNC A<->B to enableyou to synchronize methods in working areas A and B.

Note:⇒ You must be using the Reduced communication protocol.


4 Working in the System window

The following chapter describes the routine work performed within theSystem window.

4.1 Working with stored records

When you execute an analysis with your titrator, a record is sent to thecomputer. It contains the data pertinent to this analysis. You must define the'Computer' or the 'Printer + Computer' as the output in the Report part of themethod with which you are working. The records are saved in data files givennames according to the type of titrator used:

DL67, DL70ES and DL77 :The record files are named RECOxxxx.nnn.xxxx Method ID of the method used for the titration.nnn Running incremental number

(000 for the first file, then 001, 002 etc.).

DL50, DL53, DL55 and DL58 :The record files are named RECxxxxx.nnn or RECxxxxx.Enn.xxxxx Method ID of the method used for the titration.nnn Running incremental number

(000 for the first file, then 001, 002 etc.).Enn Running incremental number for express samples

(E00, E02, ..., only DL50 family V2.0).

DL31 and DL38 :The record files are named RECKyxxx.nnn.y F: Record of a KF determination

D: Record of a drift determinationC: Record of a concentration determinationB: Record of a Bromine number determination

xxx Method ID of the method used for the titration.nnn Running incremental number

(000 for the first file, then 001, 002 etc.).


4.1.1 Selecting a record file

The desired record must be selected so that the contents can be viewed orprinted.

This button activates the dialog Select record.

4.1.2 Results

With this button you select results of a selected record file.

If there are several results in the record file, you can choose between them:

If you click OK after selecting the desired results, they will be displayed in theSystem window:


If the sample includes statistics or data derived from Auxiliary value,Calibration or Titer functions, then these will be displayed at the end of therecord.

This button allows you to print the contents of the System window.


4.1.3 Measured value table

With this button you choose to have the measured value tabledisplayed.

If there are several measured value tables in the record file then you canchoose the desired ones.

Note:⇒ Record files larger than 32 kB cannot be displayed. It may not be possible

to show all measured value tables at once.



4.1.4 Titration curves

With this button you choose the curve display.

Should there be several curves (measured value tables) in the record file,then you can choose the desired ones.You can display maximally 4 overlapping curves.After you have selected the desired curves, you must indicate the type ofdisplay you prefer in the next dialog:

Dialog for the DL50 family and DL70 family:

Dialog for the DL31 / DL38 :

Note:⇒ Drift-t appears in gray for a Bromine No. report.

After confirming the units with OK, the desired curves are shown in theSystem window:



Note:⇒ The vertical line indicating the equivalence volume corresponds to the

EQP mark in the measured value table. It does not refer to theequivalence volume (VEQ) calculated by the titrator’s evaluationalgorithm.


4.1.4.1 Increasing and decreasing size of the curve

As soon as the desired curve is displayed, you can use the Zoom function.

To enlarge the curve use the command Zoom In. The following dialog, inwhich you define the coordinates, appears:

After confirming your choice the selected excerpt is shown:

To return to the original full size display, use Zoom Out.


4.1.4.2 Manual re-evaluation

It is possible to use the Zoom function to re-evaluate a saved titration curvemanually. To do this, increase the size of the interesting excerpt. If you thengo with the cursor to the point at which you assume the equivalence point tobe and click the left mouse key, the coordinates of this point on the curve areshown.

These coordinates can be used to perform the necessary calculations.


4.1.5 Export record file

To continue work on your data you must export it into an appropriateapplications program. The record file must be converted into the format of theprogram with which you intend to work. This required format is a text formatthat can easily be imported by the desired program. You record files can beconverted to ASCII, EXCEL and DBASE formats.To export a record file, select the Export command in the Record menu ofthe System window.After you select the format the computer will convert the file correspondingly.The new file is given a name automatically:

DL70 family DL50 family DL31 / DL38ASCII ASCIxxxx.nnn ASCxxxxx.nnn

ASCxxxxx.EnnASCKyxxx.nnn

EXCEL EXCLxxxx.nnn EXCxxxxx.nnnEXCxxxxx.Enn

EXCKyxxx.nnn

DBASE DBASxxxx.nnn DBSxxxxx.nnnDBSxxxxx.Enn

DBSKyxxx.nnn

xxx, xxxx, xxxxx: ID (No.) of the method used for the analysis.nnn, Enn: Running number, running number for express

samples (only DL50 family Version 2.0 andabove).

y: F: KF determination,C: Conc. determination,D: Drift determination,B: Bromine No. determination.


The following must be considered when working with EXCEL and titrationdata:The settings under Windows must correspond to the numeric format of thetitrator. This means that the numbers must be formatted under the RegionalSettings Properties in the Windows System Settings:

Digit grouping symbol 'Decimal symbol .Display leading zeroes 0.7

After you have converted the file, start up EXCEL and open it.Proceed as follows:

Older EXCEL versions:• In the menu File select ‘Open’.• Change the file name in exc*.*• Click the text.• Select the list separator 'Semicolon'• With OK you return to the dialog 'Open file’.


EXCEL versions with text assistant:• In the menu File select ‘Open’.• Change the file name in exc*.*• Follow the instructions of the text assistant:

Select 'Semicolon' as list separatorAssign the data format 'Text' to every row

To work with the imported file successfully, it is best to delete all data that isnot needed and to save the file afterwards as an EXCEL (*.xls) file.

4.2 Different window views

DLWin allows you to arrange your display in several ways. For this use themenu Window.You can choose between displaying windows overlapped, arranged next toeach other or on top of each other.

4.3 Working with files

In case you want to work with your record files (for instance deleting orcopying files), use the Windows Explorer. See the Windows handbook.

4.3.1 Using temporary files

You can have text displayed in a window copied to the clip board. To do thismark the text in the window and press Ctrl-C. If you now open the clipboard,you see the original DLWin text. This text can now be inserted into otherapplications using the Ctrl-V button.


4.3.2 Entering sub or superscript characters

Sub- or superscript characters can be entered only using the ASCII codes(see the following tables).

Example: H2SO4You must enter the lowered 2 with Alt0162 and the lowered 4 with Alt0164.

The characters will not, however, be displayed sub- or superscript becausethe character set in Windows does not correspond to the one in the titrator.

Note:⇒ To avoid having entries look like this, it is best to not use special

characters in the resources or installation data of the titrator. In this case,name the titrant H2SO4 rather than H2SO4.


Titrator character set :

0 1 2 3 4 5 6 70 0

01610

SP 3220

0 4830

@ 6440

P 8050

` 9660

p 11270

1 11

1711

! 3321

1 4931

A 6541

Q 8151

a 9761

q 11371

2 22

1812

" 3422

2 5032

B 6642

R 8252

b 9862

r 11472

3 33

1913

# 3523

3 5133

C 6743

S 8353

c 9963

s 11573

4 44

2014

$ 3624

4 5234

D 6844

T 8454

d 10064

t 11674

5 55

2115

% 3725

5 5335

E 6945

U 8555

e 10165

u 11775

6 66

2216

& 3826

6 5436

F 7046

V 8656

f 10266

v 11876

7 77

2317

´ 3927

7 5537

G 7147

W 8757

g 10367

w 11977

8 88

2418

( 4028

8 5638

H 7248

X 8858

h 10468

x 12078

9 99

2519

) 4129

9 5739

I 7349

Y 8959

i 10569

y 12179

A LF 10A

261A

* 422A

: 583A

J 744A

Z 905A

j 1066A

z 1227A

B 11B

271B

+ 432B

; 593B

K 754B

[ 915B

k 1076B

{ 1237B

C 12C

281C

, 442C

< 603C

L 764C

\ 925C

l 1086C

| 1247C

D CR 13D

291D

– 452D

= 613D

M 774D

] 935D

m 1096D

} 1257D

E 14E

301E

. 462E

> 623E

N 784E

^ 945E

n 1106E

~ 1267E

F 15F

311F

/ 472F

? 633F

O 794F

_ 955F

o 1116F

1277F


Titrator character set (continued):

8 9 A B C D E F0 128

8014490

0 160A0

6 176B0

À 192C0

208D0

à 224E0

240F0

1 12981

14591

1 161A1

7 177B1

Á 193C1

Ñ 209D1

á 225E1

ñ 241F1

2 13082

14692

2 162A2

8 178B2

Â 194C2

Ò 210D2

â 226E2

ò 242F2

3 13183

14793

3 163A3

9 179B3

Ã 195C3

Ó 211D3

ã 227E3

ó 243F3

4 13284

14894

4 164A4

+ 180B4

Ä 196C4

Ô 212D4

ä 228E4

ô 244F4

5 13385

14995

5 165A5

+ 181B5

Å 197C5

Õ 213D5

å 229E5

õ 245F5

6 13486

15096

6 166A6

– 182B6

198C6

Ö 214D6

230E6

ö 246F6

7 13587

15197

7 167A7

. 183B7

Ç 199C7

215D7

ç 231E7

247F7

8 13688

15298

8 168A8

x 184B8

È 200C8

216D8

è 232E8

248F8

9 13789

15399

9 169A9

∆ 185B9

É 201C9

Ù 217D9

é 233E9

ù 249F9

A 1388A

1549A

0 170AA

– 186BA

Ê 202CA

Ú 218DA

ê 234EA

ú 250FA

B 1398B

1559B

1 171AB

187BB

Ë 203CB

Û 219DB

ë 235EB

û 251FB

C 1408C

1569C

2 172AC

° 188BC

Ì 204CC

Ü 220DC

ì 236EC

ü 252FC

D 1418D

1579D

3 173AD

189BD

Í 205CD

_ 221DD

í 237ED

ÿ 253FD

E 1428E

1589E

4 174AE

µ 190BE

Î 206CE

222DE

î 238EE

254FE

F 1438F

1599F

5 175AF

Ø 191BF

Ï 207CF

ß 223DF

ï 239EF

255FF


5 Description of Functions

DLWin has a System window and one or several Titrator windows. Bothwindow types have different menus which are explained below.

5.1 System window

The System window includes all commands that are used for connecting atitrator or a balance or for removal of such a connection. Additionally you willfind commands to work with stored data files. Summarized briefly, here youwill find the commands that do not require a connection to the titrator.

5.1.1 Setup

DLWin allows you to work with a specific setup. The setup refers to thearrangement of connections to titrators and balances, directories for datastorage and settings for file conversion.

Setup has the following submenu:- Open- Save- Save as- Close- Show- Balance- Language- DLBase directory- Exit DLWin

5.1.1.1 Open

This command allows you to open a certain setup that is stored in thecomputer (see also Chapter 1.6, 2.6, 3.6).

5.1.1.2 Save

Save allows you to save a setup (see also Chapter 1.5, 2.5, 3.5).


5.1.1.3 Save as

This command allows you to save a setup under a selected name.

5.1.1.4 Close

This command closes the current setup. All Titrator windows are closed.

5.1.1.5 Show

This command shows the current setup on the screen. It gives youinformation about the directories, the ports and the communicationparameters. Choose Print from the Window menu to receive a printout ofthe setup.

5.1.1.6 Balance

This command installs a connection between the computer and the balance.You must enter the communication parameters in the following dialog. Aftersuccessful connection of the balance, you will see a mark in front of the wordBalance in the Setup menu.To remove the balance connection, click Balance again.The balance configuration needs to be in the mode, in which the balancecontinuously sends the weight. This is the ”send continuous” mode forMETTLER TOLEDO balances.

5.1.1.7 Language

With this command you can choose between German, English or French.After changing the language you must restart DLWin before being able towork in the new language.

5.1.1.8 DLBase directory

The dialog following this command allows you to select the directory you wishto have your files exported to for DLBase. The directory must correspond tothe DLBase import directory.


5.1.1.9 Exit DLWin

Exit DLWin closes DLWin and returns to Windows.

5.1.2 Titrator

Titrator has the following submenu:- New connection- Remove connection

5.1.2.1 New connection

This command installs a new connection between the computer and thetitrator. You must enter the name of the titrator and the serial port to whichyour titrator is attached. You must enter the communication parameters foryour computer. These parameters must correspond to parameters selectedin the titrator’s resources or installation data. We recommend using thedefault system parameters. After confirming the parameters, you will see theTitrator window with a different toolbar.

Note:⇒ If you are either working with a DL31 or DL38 or are using a DL77 and

intend to synchronise the working areas (Analysis A and Analysis B), youmust use the Reduced communication protocol.

5.1.2.2 Remove connection

This command allows you to remove an existing connection betweencomputer and titrator. You will be shown a list of titrators to whichconnections exist. Select the titrator you wish to disconnect.


5.1.3 Record

Record has the following submenu:- Select- Export- Results- Tables- Curves

5.1.3.1 Select

This command allows you to choose a specific record file from theappropriate directory (see also Chapter 4.1.4). Record files have thefollowing file names:

DL70-Familie DL50-Familie DL31 / DL38RECOxxxx.nnn RECxxxxx.nnn

RECxxxxx.EnnRECKyxxx.nnn

xxxx: Method IDnnn: Record no.

xxxxx: Method IDnnn: Record no.Enn: Record no. for

Express samples

xxx: Method IDnnn: Record no.y:F: KF sampleC: Conc. determin.D: Drift determin.B: Bromine No. det.

Note:⇒ The maximum number of records for the same method in one directory is

1000 (000 - 999), or 100 (E00 - E99) for express samples.


5.1.3.2 Export

This command allows you to change the format of the original record file. Youcan choose between three formats - EXCEL, ASCII and DBASE. Thisenables you to import your record file into standard programs, where you canwork with your data. The new file will be named according to the format youhave selected:

DL70-Familie DL50-Familie DL31 / DL38EXCEL EXCLxxxx.nnn EXCxxxxx.nnn EXCKyxxx.nnnASCII ASCIxxxx.nnn ASCxxxxx.nnn ASCKyxxx.nnnDBASE DBASxxxx.nnn DBSxxxxx.nnn DBSKyxxx.nnn

5.1.3.3 Results

Results displays the results of a selected record file. As you can have morethan one result in a record file, you will be asked whether you want to haveall or selected results displayed (see also Chapter 4.1.2).

5.1.3.4 Tables

Tables displays the measured value tables of a selected record file. As youcan have more than one measured value table in a record file, you will beasked whether you want to have all or selected tables displayed (see alsoChapter 4.1.3).

Note:⇒ In the System window only files not larger than 32 kB can be shown.

This implies that not all measured value tables of a larger series can bedisplayed simultaneously.

5.1.3.5 Curves

This command allows you to display titration curves. As you can have morethan one curve in a record file, you will be asked whether you want to haveall or selected curves displayed (see also Chapter 4.1.4). Up to four titrationcurves may be selected.The second dialog will ask you to choose between E-V, dE/dV-V (i.e., Drift-tfor a DL31 or DL38), E-t or V-t curve. After choosing the desired option, youwill see the selected curves shown on the screen.


5.1.4 Zoom

Zoom has the following submenu:- Zoom In- Zoom Out

5.1.4.1 Zoom In

After displaying a curve on the monitor, it is possible to look at a specificdetail using the Zoom In command. A dialog will ask you to set the graphlimits (see also Chapter 4.1.4.1, 4.1.4.2).

5.1.4.2 Zoom Out

After using the Zoom In command, Zoom Out can be used to restore theoriginal full display of the graph (see also Chapter 4.1.4.1).

5.1.5 Tools

Tools has the following submenu:- Adapt- DLBase- DLConv- DLEval

5.1.5.1 Adapt

This command allows you to add any desired Windows program to the Toolsmenu. You can also modify or remove existing entries.

5.1.5.2 DLBase

This command executes DLBase. You must change the entry for DLBase ifWindows was not installed in the standard C:\Windows directory.

5.1.5.3 DLConv

This command executes DLConv. You must change the entry for DLConv if itwas not installed in the DLWin directory.

5.1.5.4 DLEval

This command executes DLEval. You must change the entry for DLEval if itwas not installed in the standard directory.


5.1.6 Window

Window has the following submenu:- Cascade- Horizontal- Vertical- Arrange icons- Clear- Print

5.1.6.1 Cascade

The windows will overlap so that each window title will be visible.

5.1.6.2 Horizontal

The windows are resized and arranged horizontally without overlapping.

5.1.6.3 Vertical

The windows are resized and arranged vertically without overlapping.

5.1.6.4 Arrange icons

When you minimize a window, it becomes an icon. Should you have severalsuch icons, you can have them arranged to be evenly spaced withoutoverlapping.

5.1.6.5 Clear

This command clears the contents of a window.

5.1.6.6 Print

This command allows you to print out the contents of the active window. Youcan choose print parameters and define the printer setup.


5.1.7 Help

This menu gives you access to online help.

Help has the following submenu:- Index- Using help- About DLWin

5.1.7.1 Index

Index displays the contents of DLWin help.

5.1.7.2 Using help

Using help displays the topics of Windows help.

5.1.7.3 About DLWin

About DLWin displays a dialog with information pertaining to DLWin.


5.2 Titrator window

In a titrator window you have access to all the commands you need to workwith an attached titrator. Depending on which titrator type is attached (DL7x,DL5x, or DL31/DL38) the menus and toolbars will differ.

5.2.1 Analysis

This menu is used for starting measurements from the computer.

Analysis has the following submenu:- Start method (DL70 family)

Start sample series (DL50 family)Start determination (DL31/DL38)

- Send confirmation- Sample data- Online data- Record (DL70 family)

Report (DL50 family and DL31/DL38)- Miscellaneous- Reset all activities- Exit DLWin

5.2.1.1 Start method / sample series / determination

DL70 family:For the DL70 family this command starts a method. The system will ask forthe method ID, the user name and whether the sample data will be enteredfrom the computer or the titrator. If you select At computer (before RUN),the sample data must be complete before starting, otherwise you must entermissing sample data at the titrator. If you select At computer, the sampledata must not be complete prior to starting. The titrator will request missingdata as it is required for continuation of the method. You must then entermissing sample data; it will not be necessary beforehand.

- DL67: this command starts one method- DL70ES: you can add nine further methods to the method list after

starting the first


- DL77: you can add nine further methods per working area to the methodlist after starting the first method.

Note:⇒ Methods cannot be started or added to the list if you are in a submenu of

the ‘Analysis‘ menu in the titrator.

DL50 family:With this titrator family you start a sample series. The system will ask only forthe series ID provided a file with sample data already exists. The other datafields will be filled in automatically once you leave the series ID field. Sampledata can be entered at the titrator or the computer. The system will ask youfor the method ID, number of samples and user name if you enter the sampledata at the titrator.

- DL50 or DL53: you can start one sample series- DL55 or DL58: you can add two further sample series to the list once you

have started the first (provided that you have not reached the maximumnumber of samples)

Note:⇒ A sample series cannot be started or added if the remote control is

inactive.

DL31 und DL38:With titrators of this family you start single samples. If the titrator has beenreset you will be asked for the method and user name.If a KF determination is being executed, the titrator will pre-titrate first. TheKF determination can be started when the titrator is in the standby mode.You will then be asked to enter the type of determination and the methodparameters.A Bromine number determination (only DL38) can only be started if thetitrator is idle. You will be asked to enter the method parameters.

You can edit only the method parameters that are set to ‘Request’ in themethod. Pre-set parameters are displayed in gray and cannot be changed.You choose between entering sample data at the titrator or computer.

Note:⇒ For a drift determination, no method parameters need to be entered.⇒ Choose End Series under Analysis / Miscellaneous if you wish to start

a new series (DL38 only).


5.2.1.2 Send confirmation

You must click this symbol when the titrator requests a confirmation.

5.2.1.3 Sample data

Sample data has the following submenu:- Enter sample data- Get method data (DL70 family)

Get series data (DL50 family)Get method data (DL31/DL38)

- Delete sample list

Enter sample data

The command Enter sample data allows you to enter sample data from thecomputer (see also Chapter 1.9, 2.7, 3.7).

DL70 family and DL50 family:1. If you want to enter new sample data, enter the method ID in the

dialog or select a method from the list using the Select button.2. An existing sample data file stored in the computer can be opened and

the data edited. To do this, enter the method ID (DL7x) or the seriesID (DL5x). Use the Select button to choose the desired file from thelist of previously stored sample data files.

The method, series and sample data in the subsequent dialogs can bealtered and stored. The resulting files will be named as follows:

DL70 family DL50 familyMETHxxxx.MSD SERyyyyy.SSDxxxx: Method ID yyyyy: the first 5 characters of the series ID


Note:⇒ A sample data file stored in the computer will not be deleted after

completion of the method. The original sample data will be used again ifyou start the method once more without changing the sample data file.

DL31 / DL38:Enter the sample data after the request ‘Please add sample’ appears.

Get method data / Get series data

DL70 family :The method data will be displayed on the monitor. A text file namedMETHxxxx.DAT (xxxx is the method ID) will be created.

DL50 family :The series data will be displayed on the monitor. A text file namedMCOxxxxx.DAT (xxxxx is the method ID) will be created.

DL31 / DL38 :The method data will be displayed on the monitor. A text file namedMCOKFxxx.DAT (xxx: method no.) will be created.

Delete sample list (only DL70 and DL50 family)

This function deletes the sample list in the titrator. With a DL77 the sampledata in the active working area (Analysis A or Analysis B) will be deleted.


5.2.1.4 Online data

This menu allows you to watch online data during a titration. After choosingan item from the online data menu, the Titrator window will be divided. Theleft partition shows the curve or the measured value table, the right partitionshows the results. To print the contents of a part, click the correspondingwindow part then the print button.With a DL77, select the appropriate working area to display online curves ormeasured value tables. The online measured value table will be stored in afile named MEAVALAx.DAT; using a DL77 and working area B, it will bestored in a file named MEAVALBx.DAT (x = port No. the titrator is connectedto).

Online data has the following submenu:- Measured value table- Curve- Results

Measured value table (2x)

This option allows you to display the measured values. The option is markedin the menu once selected. Clicking the menu item again switches off theonline data display.

Curve

Curve allows you to display the curve on the monitor (DL5x, DL7x: E-V,DL31/DL38: V-t). The option is marked in the menu once selected. Clickingthe menu item again switches off the online curve.

Results

Results activates the online display of the results. The option is marked inthe menu once selected. Clicking the menu item again switches off the onlineresults display.


5.2.1.5 Record / Report

Record / Report has the following submenu:- Set record / report send mode- Get record / report

Set record / report send mode

With Set record / report send mode you can select whether you want yourrecord / report to be sent spontaneously (titrator sends data every time thereare some), on request (titrator waits until you ask for data with Get record /report), or not at all (record transmission from the titrator to the computer issuppressed). With a DL77 you will have to designate the working area.

Get record / report

Get record / report allows you to receive the current record or report (seealso 2.10.2, 3.10.2)

5.2.1.6 Miscellaneous

Miscellaneous has the following submenu:- Get titrator status- Confirm SYNC code (DL70 family and DL50 family)

End series (DL31/DL38)- Set working area

Get titrator status

This command gives you information about the status of the titrator. Thisinformation includes the following: (Example: status of a DL58)

Status Titrator ID 39/08.11.96 Titrator type and software version DL58V2.0 Current method ID 01111 Analysis status Running Sample status Running Sample number 1 Method function Stirrer Index of method function 1


Confirm SYNC code (only DL50 and DL70 family)

With this command you allow the titrator to continue. Methods in the DL70family and DL50 family can be synchronized with this function. There aretwo possibilities with this function:1. The function sends a numeric code and the method proceeds2. The function sends a numeric code and waits for this code to be sent back before the method proceeds.Confirm SYNC code handles the second case (send/wait). The commandsends the numeric code back to the titrator. The method will then continue.

Set working area (only DL77)

You can select the working area ANALYSIS A or ANALYSIS B when you areworking with a DL77. Your methods will start in the designated area. Thetitrator displays online curve and measured value tables in the chosen area.Online results are displayed independently of the chosen working area.

End series (only DL38)

This command ends a series. With the next sample you start a new series.

Note:⇒ A series can also be ended by the DL38. For information please read the

DL38 handbook.

5.2.1.7 Reset all activities

This command stops a titration or any other activity that is running.

5.2.1.8 Exit DLWin

DLWin is ended.


5.2.2 Auxiliary functions

This menu allows you to work with the auxiliary functions corresponding tothose in the titrator.

Auxiliary functions has the following submenu:DL70 family DL50 family DL31/DL38- Rinse burette - Rinse burette - Rinse burette- Dispense - Dispense - Dispense- Measure - Measure - Stirrer- Stirrer - Stirrer - Pump- Auxiliary instrument - Sample changer- Enter titer value - Enter titer value- Enter auxiliary value - Enter auxiliary value

5.2.2.1 Rinse burette

This command allows you to rinse the burette(s). You must select the drive(DL70 family and DL50 family) or the filling rate (DL31/DL38).

5.2.2.2 Dispense

This command allows you to dispense a fixed volume. Select the drive(DL70 family and DL50 family), the burette volume, the volume to bedispensed, and the filling rate (only DL31/DL38) (see also Chapter 1.12.1,2.11.1, 3.11.1).

5.2.2.3 Measure (DL70 family and DL50 family)

Measure potential

This function allows you to measure the potential of a solution. Define thesensor and unit of measurement. Also enter the temperature if you haveselected the temperature sensor as ‘Manual’. The data are stored under thename MEASURE.DAT in the working directory (see also Chapter 2.11.4,3.11.4).

Measure voltage / current (only DL50 family)

The voltage or current is measured by means of polarized sensors. Enter thename of the sensor, the type of indication (voltametric or amperometric) andthe polarization voltage or current. Measured data will be stored in a filenamed POLMEAS.DAT in the working directory(see also Chapter 2.11.4).


5.2.2.4 Stirrer

This command allows you to start or stop the stirrer. You must select thetitration stand (only DL70 and DL50 family) and the speed. You can thenswitch on or off the stirrer with the Start and Stop buttons.

5.2.2.5 Auxiliary instrument (only DL70 family)

Here you can select the auxiliary instrument you want to have switched onduring a given time (see also the handbook DL67, DL70ES and DL77).

5.2.2.6 Pump: empty / fill (only DL31 and DL38)

With this command you start or stop the pump.

5.2.2.7 Sample changer (only DL50 family)

Sample changer has the following submenu:- Change lift position- Rotate turntable- Dispense / rinse

Change lift position

With this command you can change the position of the sample lift. Enter thedesired position in the dialog.

Rotate turntable

This command allows you to rotate the turntable to the desired position.Enter the direction of rotation and the number of positions.

Dispense / rinse

Using Dispense / rinse you can control auxiliary instruments connected tothe sample changer outputs DOSE, RINSE and DISPENSE.Select the desired output and use the Start / Stop buttons to switch on or offthe auxiliary instrument.


5.2.2.8 Enter titer value (only DL70 and DL50 family)

This command allows you to modify the titer of a specific titrant. Enter thetitrant name, concentration and the titer. Calculations will be performed usingthis titer value.Note:Please refer to Chapter 4.3.2 for additional information.

5.2.2.9 Enter auxiliary value (only DL70 and DL50 family)

This function allows you to enter an auxiliary value. Results of a titration,such as blanks or potentials, can be stored in a specific memory space. Thenew value is stored automatically in the titrator. If you have already stored avalue, the old value is overwritten.

5.2.3 Backup

The menu Backup contains commands that allow you to request copies ofmethods, resources and installation data as well as text files (listings) suchas method listings, method directories and other lists. Copies are binary filesthat are not readable and can be sent back to the titrator.

Backup has the following submenu:- Send backup- Get backup- Get listings

5.2.3.1 Send backup

Copies which have been requested with Get backup can be sent back to thetitrator using Send backup.


Send backup has the following submenu:- Method- Installation data (DL70 family)

Resources (DL50 family and DL31/DL38)- Memory copy

Method

This command allows you to send a method copy from the computer to thetitrator. Method copies are requested automatically by the titrator if a methodis started which is not stored in the titrator’s memory. Method copies havenames as follows, provided you used the option Auto filenames during thebackup process:

DL70 family DL50 family DL31 / DL38METHxxxx.COP MCOxxxxx.COP MCOKFxxx.COPxxxx: Method ID xxxxx: Method ID xxx: Method no.

Installation data (DL70 family) / Resources (DL50 family and DL31/DL38)

This command allows you to send a copy of the installation data or resourcesto the titrator. Installation data or resources are not requested automaticallyby the titrator if they are not stored there.Installation data and resource copies have names as follows, provided youused the option Auto filenames during the backup process:

DL70 family DL50 familyTitrants INST0001.COP SETUP001.COPSensors INST0002.COP SETUP002.COPTemp. sensors INST0003.COP SETUP003.COPPol. sensors - SETUP010.COPAuxiliary reagents INST0004.COP -Auxiliary instruments INST0005.COP -Titration stands INST0006.COP SETUP005.COPAuxiliary values INST0007.COP SETUP004.COPPeripherals INST0008.COP SETUP006.COPMiscellaneous INST0009.COP -Solvents - SETUP007.COPInputs - SETUP008.COPOutputs - SETUP009.COP


DL31/DL38KF titrants SETKF001.COPBr No. titrants SETKF002.COP (only DL38)KF standards SETKF003.COPMain methods SETKF004.COP (only DL38)Peripherals SETKF005.COPSettings SETKF006.COP

Memory copy

A memory copy is the copy of the whole user data memory (methods andinstallation data / resources). It allows the configuration of different titratorswith the same set of parameters (DL5x and DL7x) or several DL31 or DL38with the same data. To use this feature you do not need the RS option for theDL70 family because the computer and titrator must be connected via theprinter port.Send backup / Memory copy sends all *.COP files in the working directoryto the titrator (DL70 family). For the DL50 family and the DL31/DL38, theselected data file will be sent to the titrator. If you are using the option Autofilenames, the name of the memory copy will be MEMORY__.COP (DL50family) and MEMORYKF.COP (DL31/DL38).Titrators of the DL50 family and the DL31/DL38 must be reset prior to thisoperation.

5.2.3.2 Get backup

This command requests a copy of methods, installation data or resources, orthe user data memory.

Get backup has the following submenu:- Method- Installation data (DL70 family)

Resources (DL50 family and DL31/DL38)- Memory copy

Method

This command allows you to get a backup of a method. The method is storedas METHxxxx.COP for the DL70 family (MCOxxxxx.COP for the DL50 family,MCOKFxxx.COP for the DL31, DL38) when the option Auto Filenames hasbeen turned on. xxxx / xxxxx / xxx refer to the method ID or the method no.,respectively. The method can now be deleted from the titrator’s memory. Ifyou now want to work with this method, the titrator requests and uses it fromthe computer without saving the method again.


Wildcards may be used for this command (*,?).

Example: All methods with a zero as the third digit ??0?All methods beginning with a T T*

Note:⇒ You cannot obtain backups of METTLER methods.

Installation data (DL70 family) / Resources (DL50 family and DL31/DL38)

This command allows you to get a backup of installation data or resources.Backup files are named as described in Chapter 5.2.3.1.

Memory copy

This command allows you to get a backup of the entire user data memory. Todo this for the DL70 family, you must connect the computer to the titrator’sprinter port. Titrators of the DL50 family and the DL31/DL38 must be resetprior to this operation.Files are named as described in Chapter 5.2.3.1.

5.2.3.3 Get listings

A listing is a readable printout that cannot be sent back to the titrator.


Get listings has the following submenu:- Method directory (not with DL31)- Method listing- Installation listing (DL70 family)

Resource listing (DL50 family and DL31/DL38)- Sample listing (DL50 family)

Method directory (not with DL31)

Using this command, a list of all or selected methods stored in the titrator willbe sent to the computer and stored in the file METHzzzz.DIR for the DL70family (or MCO_zzzz.DIR for the DL50 family, MCOKFzzz.DIR for theDL38). The list will be displayed on the monitor.

DL70 family DL50 family DL38User methods zzzz = 0000 zzzz = 0000 zzz = 0000Special methods - zzzz = 0001 -METTLER methods zzzz = 0001 zzzz = 0002 zzz = 0002All methods zzzz = 0002 zzzz = 0003 zzz = 0003

Method listing

The desired method listing will be displayed on the monitor and stored in thefile METHxxxx.LIS for the DL70 family (or MCOxxxxx.LIS for the DL50family, MCOKFxxx.LIS for the DL31/DL38) with xxxx / xxxxx / xxx referringto the method ID or method No. respectively.

Installation listing (DL70 family) /Resource listing (DL50 family and DL31/DL38)

This command allows you to get a listing of the installation data or resources.Refer to Chapter 5.2.3.1 for the naming of the resulting files in the workingdirectory. The file name is extended by *.LIS.

Sample listing (only DL50 family)

This command allows you to display a list of the samples stored in thetitrator’s sample data memory. The data are stored in the fileSAMPLES_.LIS.


5.2.4 Setup

The menu Setup / Preferences allows you to set the DLWin configuration.The working and the record / report directories can be defined here. Theoption Auto filenames allows the software to name the record / report filesautomatically. When using this option (which we recommend) pleaseremember that DOS does not distinguish between lowercase and(uppercase) capital letters, unlike titrators of the DL70, DL50 and DL30families. When this option is not used you must enter all file names manually.DLBase export must be selected if you wish to import record files toDLBase. DLWin will export the files you have indicated in the Systemwindow under the Setup menu.Die Option Auto conversion allows you to have each record convertedautomatically to EXCEL, ASCII or DBASE format. The text file formats differfrom each other by the markers (;, TAB, \field\,\field\).

Note:⇒ The converted files cannot be read into standard programs directly. The

correct extension must be defined in the specific application program. Theprocess of importing files varies according to application and version.

With titrators of the DL50 family and DL70 family you have two options inthe Record group of the Set preferences dialog. All data may be sent or thedata defined in the titrator’s Record / Report function.

The DL77 also allows you to synchronize methods in the working areas Aand B. To do this, use the option SYNC A<->B.

Note:⇒ Use the Reduced communication protocol

when working with SYNC A<->B.


5.2.5 Window

See Chapter 3.1.5.

5.2.6 Help

See Chapter 3.1.6.


5.3 Description of the toolbars

DLWin displays a tools bar in addition to the menu bar. Buttons for the mostcommon DLWin functions are to be found here.

Buttons of the System window:

Open an existing setup (open setup file)

Connect a titrator

Select a record

Show result(s), a record must be selected first

Show measured value table(s), a record must be selected first

Show titration curve(s), a record must be selected first


DLWin help


Buttons for the DL70 family Titrator window

Switch working area (DL77 only)

Enter sample data

Start/add a method


Show online results during titration

Switch off online results during titration

Show online curve/table during titration

Switch off online curve/table during titration

Auxiliary function: dispense

Auxiliary function: switch on/off stirrer

Auxiliary function: measure potential



Delete sample list (in the titrator)


DLWin help


Buttons for the DL50 family Titrator window

Enter sample data

Start/add a series


Show online results during the titration

Switch off online results during the titration

Show online curve/table during the titration

Switch off online results during the titration



Auxiliary function: measure potential

Auxiliary function: measure voltage/current

Auxiliary function: change lift position

Auxiliary function: rotate turntable

Auxiliary function: dispense/rinse



Delete sample list (in the titrator)


DLWin help


Buttons for the DL31/DL38 Titrator window

Start a determination


Enter sample data

Show online results during titration

Switch off online results during titration

Show online curve/table during titration

Switch off online curve/table during titration



Auxiliary function: empty/fill pump




DLWin help


6 Appendix

6.1 Hardware and software requirements

Computer: IBM PC, PS/2 or 100% compatible computerwith at least a 90 MHz Pentium processor.At least 5.5 Mbytes memory on the computer hard disc.At least 16 Mbytes RAM.Graphic card, matching color or monochrome monitor (VGA)CD ROM driveMouse supported by WindowsMinimum one free serial port (RS232C)

Printer: Supported by WindowsWindows: Software version 3.1x,

Windows95 (or higher, recommended),Windows NT 4.0 (or higher)

Titrator: DL77, DL70ES, DL67 (V 3.1 or higher)DL50, DL53, DL55, DL58 (V 2.0 or higher)DL31/DL38 (V 1.0 or higher)RS option for the DL70 family (ME 25690)RS card for the DL50 family (ME 51107172)

Cable: DL5x, DL7x DB9 female/Binder male (ME 201508) DB25 female/Binder male (ME 201507)

DL31/DL38 DB9 female/DB9 female (ME 51190362)DB25 female/DB9 female (ME 51107781)

6.2 Installation of the RS232C interfaces

RS card for the DL50 familyTo be able to control the computer you must install the RS card at slot No. 3on the backside of the titrator. The computer must be connected to the lowerRS interface.Please consult the Operating Instructions of the DL58/DL55/DL53/DL50.

RS option for the DL70 familyPlease consult the Operating Instructions of the DL77/DL70ES/DL67.


6.3 DLConv

DLConv is a program that converts record files (REC*.*) to the DLBaseformat.

After you have entered the import and export paths all record files in theimport directory are displayed. You can select individual files or use Selectall for all files.DLConv creates a log file DLConv.txt in the export directory. Information forthe conversion is recorded here.

6.4 Deinstallation

If you install DLWin under Windows NT4.0, Windows 95 or Windows 98, thena deinstallation program is created. DLWin can be removed by selecting theentry DLWin in the Add/Remove programs section of the Control panel thenclicking Add/Remove....Under Windows 3.1x no deinstallation program is created. There the wholeDLWin directory and all work and record directories can be deleted to removeDLWin.


6.5 Troubleshooting

Problem SolutionYou cannot establisha connection to thetitrator.

If your hardware is intact and you are using the rightcable with the proper interfaces, then thecommunication parameters of the titrator probably donot correspond to those of DLWin. Compare thecommunication parameters of the two.

The language doesnot change afterchanging thelanguage.

DLWin must be started afresh after changing thelanguage.

DLWin cannot findmethods (sampledata).

16 bit windows programs, in contrast to the titrator,cannot differentiate between uppercase (capital) andlowercase letters. For method IDs always uselowercase letters or numbers.

The titrator loses theconnection to thecomputer.

DLWin searches the record directory and the DLBasedirectory for the file name in question. If there arevery many record files in these directories theconnection to the titrator may be lost. Clear yourdirectories regularly.

You cannot establisha connection to thetitrator or do nothave the option forestablishing aconnection.

If DLWin was not ended properly the COM servermay still be active. Close the COM server (use thetask bar: right mouse button under Windows 95, 98,NT).

Printer prints slowunder Windows NT

Open a menu to improve printing speed or select'Print directly to the printer' under My Computer /Printers / Properties / Scheduling.


7 Index

All data .......................................10Analysis......................................96Arrange icons.............................94ASCII..........................................82Auxiliary functions ........50, 70, 103Auxiliary instrument (only DL70family) ......................................104Auxiliary value

Entry .....................................105Backup .....................................105

DL31, DL38 ............................33DL5x .......................................54DL7x .......................................72

Balance ......................................89Bromine No. determination

DL31, DL38 ............................25Burette

Rinse ....................................103Cable........................................116Character set

Titrator ....................................86Clipboard....................................84Communication

DL31, DL38 ............................17DL5x .......................................36DL7x .......................................56

Communication parameterDL31, DL38 ............................17DL5x .......................................36DL7x .......................................56

Communication protocolReduced ...................................9Reduced, DL7x.......................56

Computer .................................116Installation, DL31, DL38 .........16installation, DL5x ....................35

Concentration determinationDL31, DL38 ............................23

Confirmation...............................98DL5x .......................................46DL7x .......................................65

Connection...................................8

New DL31, DL38.................... 17New, DL7x ............................. 56

Conversion fileName ..................................... 82

CoordinatesShow...................................... 81

CurveOnline .................................. 100

Curves ....................................... 92Data entry

At titrator, DL5x...................... 45DBASE ...................................... 82Default parameter

DL31, DL38............................ 17DL5x ...................................... 36DL7x ...................................... 56

Deinstallation........................... 117Directories

Create, DL31, DL38 ............... 17Directory names .......................... 9Directory tree

DL31, DL38............................ 18Dispense ................................. 103

DL31, DL38............................ 31DL5x ...................................... 50DL7x ...................................... 70

Dispense/Rinse ....................... 104DL5x ...................................... 53

DL31, DL38Toolbar................................. 115

DL50 familyToolbar................................. 114

DL70 familyToolbar................................. 113

DLBaseExport, DL31, DL38 ............... 19Export, DL5x .......................... 38Export, DL7x .......................... 58

DLBase directory ................. 16, 36DLBase directory ....................... 55DLConv ................................... 117DLWin


Start ....................................... 16DLWin Plus.................................. 2Drift determination

DL31, DL38............................ 24End series

DL38 ...................................... 30Equivalence volume

Mark ....................................... 79EXCEL....................................... 82EXCEL....................................... 83Exit

DLWin .................................... 90File conversion

Automatic, DL31, DL38 .......... 19Automatic, DL5x..................... 38Automatic, DL7x..................... 59

File namesAutomatic, DL31, DL38 .......... 19Automatic, DL5x..................... 38Automatic, DL7x..................... 58

InstallationComputer, DL7x ..................... 55RS232C interfaces ............... 116

Installation dataBackup ......................... 106, 108

KF determinationDL31, DL38............................ 20

LanguageSelect ..................................... 89

License ........................................ 4Lift position

Change ................................ 104Liftposition

Ändern ................................... 53Listings

Get ....................................... 108Get, DL31, DL38 .................... 34

MeasureDL5x....................................... 51DL7x....................................... 71Potential ............................... 103Voltage/Current ...................... 52Voltage/Current .................... 103

Measured value tableOnline................................... 100

Online, DL31, DL38 ................28Online, DL5x...........................48Online, DL7x...........................67Show ......................................77

Memory ....................................116Memory copy............................107

Backup .................................108DL31, DL38 ............................33DL5x .......................................54DL7X ......................................72

MethodBackup .................................107Start, DL7x..............................62

Method dataDL7x .......................................62Get..........................................99Get, DL31, DL38.....................30Get, DL7x ...............................69

Method directoryGet........................................109

Method listingGet........................................109

Method parameterRecord, Report .......................11

MethodeAdd, DL7x...............................66Start, DL7x..............................64

Miscellaneous ..........................101Online data...............................100

DL5x .......................................48DL7x .......................................67

PreferencesSet, DL31, DL38 .....................18

Printwindow content.......................12

PumpAuxiliary function, DL31, DL3832

Quick guide ..................................8RAM .........................................116RECKyxxx.nnn...........................74Record ...............................91, 101

Computer................................10Export .....................................92Get, DL7x ...............................69Select ...............................75, 91


Record / ReportGet........................................101

Record directoryDL31, DL38 ............................19

Record functionDL7x .......................................66

Record send modeSet DL7x.................................59

Record, ReportMethod parameter ..................11

RecordsExport .....................................82Work with................................84

Records, storedWork with................................74

RECOxxxx.nnn ..........................74RECxxxxx.Enn ...........................74RECxxxxx.nnn ...........................74Re-evaluation

Manual....................................81Regional settings .......................83Report

Get, DL31, DL38.....................30Get, DL5x ...............................49

Report functionDL5x .......................................46

Report send modeDL31, DL38 ............................19Set ..........................................39

RequirementsHardware..............................116Software ...............................116

Reset all activities ....................102Resource

Backup .................................108Resources

Backup .................................106Get listing .............................109

Restore ....................................105Results .................................75, 92

Online, DL31, DL38................28Online, DL5x...........................48Online, DL7x...........................67

Rinse buretteAuxiliary function, DL31, DL3831

DL5x ...................................... 50DL7x ...................................... 70

RS card ................................... 116DL5x .................................... 116

RS option................................. 116DL7x .................................... 116

RunDL5x ...................................... 44DL7x ...................................... 64

SampleGet listing............................. 109

Sample changer ...................... 104DL5x ...................................... 53

Sample dataBalance, DL5x........................ 43Balance, DL7x........................ 63Enter ...................................... 99Entry, DL31, DL38 ................. 27Entry, DL5x ............................ 41Entry, DL7x ............................ 61Get, DL5x............................... 49Modify, DL5x.......................... 43Modify, DL7x.......................... 62New, DL5x ............................. 41New, DL7x ............................. 61Save, DL7x ............................ 62Stored, DL5x.......................... 41Stored, DL7x.......................... 61

Sample determinationDL31, DL38............................ 22

Sample listDelete .................................... 99

Sample seriesAdd, DL5x .............................. 47Speichern, DL5x .................... 43Start ....................................... 96Start, DL5x............................. 43Start, DL5x............................. 44

Send modeSet ....................................... 101

Series dataDL5x ...................................... 42Get ......................................... 99

Series IDDL5x ...................................... 42


SetupOpen ...................................... 88Save....................................... 88

Setup ................................. 88, 110Close...................................... 89Define, DL5x .......................... 37Define, DL7x .......................... 57Open, DL31, DL38 ................. 20Open, DL5x............................ 40Open, DL7x............................ 60Save

DL31, DL38 ........................ 19DL5x ................................... 40DL7x ................................... 59

Show ...................................... 89Show, DL31, DL38 ................. 19Show, DL5x............................ 40Show, DL7x............................ 59

Setup files.................................... 9SOP............................................. 2ST20A........ Siehe Sample changerStatus

Get ....................................... 101Stirrer....................................... 104

DL31, DL38............................ 32DL5x....................................... 51DL7x....................................... 71

Subscript.................................... 85Superscript ................................ 85SYNC A<->B

DL77 ...................................... 73SYNC A<-B

DL7x....................................... 58SYNC code

Confirm ................................ 102SYNC-Code

Confirm, DL5x ........................ 50Confirm, DL7x ........................ 69

System window.............. 16, 35, 55Toolbar................................. 112

Tables........................................ 92Titer

Entry..................................... 105

TitrationDL5x .......................................44DL7x .......................................64

Titration curveOnline, DL31, DL38 ................28

Titration curves...........................78Titrations-Software .......................2Titrator................................90, 116

New connection ......................90Remove connection................90

Titrator statusGet, DL5x ...............................47Get, DL7x ...............................67

Titrator windowToolbar (DL31, DL38)...........115Toolbar (DL50 family) ...........114Toolbar (DL70 family) ...........113

Titrator window...........................96Toolbar

System window.......................13Titrator window .......................13

Troubleshooting .......................118Turntable

Rotate...................................104Turntable

Rotate, DL5x...........................53User interface.............................12Warranty ......................................4Window

Cascade .................................94Clear.......................................94Horizontal ...............................94Print ........................................94

Window views ............................84Windows ..................................116Working area

Set (only DL77).....................102Synchronize, DL7x .................56

Working directoryDL31, DL38 ............................19

Zoom....................................80, 93Zoom In......................................93Zoom Out ...................................93

METTLER TOLEDO DLBase V2.0 1

2 METTLER TOLEDO DLBase V2.0


Contents DLBase V2.0

Page

1 Introduction ...................................................................................................4

2 Setup and Installation...................................................................................52.1 Titrator setup...................................................................................................52.2 DLBase installation and setup.........................................................................62.2.1 If you worked with DLBase V1.0 .....................................................................62.2.2 Creating directories .........................................................................................62.2.3 DLBase V2.0 installation and startup ..............................................................62.2.4 Data backup....................................................................................................62.3 DLWin setup ...................................................................................................72.3.1 Setup in the titrator window.............................................................................72.3.2 Setup in the System window ...........................................................................82.3.3 Data conversion with DLConv.........................................................................82.4 Working with DLEval .......................................................................................92.5 Schematic overview: DLWin, DLBase and DLEval .......................................10

3 DLBase menus ............................................................................................113.1 File ................................................................................................................133.1.1 Import files ....................................................................................................133.1.2 New database ...............................................................................................133.1.3 Open / Convert database ..............................................................................143.1.4 Setup.............................................................................................................143.1.5 Exit ................................................................................................................143.2 Edit................................................................................................................153.2.1 Copy..............................................................................................................153.2.2 Select all data records...................................................................................153.2.3 Search ..........................................................................................................153.3 View ..............................................................................................................163.3.1 Data records .................................................................................................163.3.2 SOPs.............................................................................................................223.3.3 Calibrations ...................................................................................................233.3.4 Titer determinations ......................................................................................233.4 Window .........................................................................................................233.5 ? – Menu .......................................................................................................23

4 Appendix......................................................................................................244.1 Hardware and software requirements ...........................................................244.2 Extent of delivery ..........................................................................................244.3 Troubleshooting ............................................................................................25

5 Index.............................................................................................................26


1 Introduction

DLBase is the database application for METTLER TOLEDO titration software. WithDLBase you can conveniently view, arrange, compare and store your titration data.Various filter criteria allow you to extract the desired data easily. Standard operatingprocedures (SOPs) can be defined, with which results can be neatly displayed andcompared. Data files stored in DLBase can be transferred to Excel.


2 Setup and Installation

2.1 Titrator setupFor every selected method, you must clearly define the output instrument under theReport function in order for your data to be entered in the DLWin program and transferredto your computer correctly:• Select Report function.• Select either Computer or Printer + Computer as parameters for the Output.

Example for the parameter choice on DL31 and DL38:No. M

Report Output Printer + Computer

Example for the parameter choice on DL50, DL53, DL55 and DL58:Sample M

Report Output Printer + Computer

Example for the parameter choice on DL67, DL70ES and DL77:Sample M

Record Output Printer + ComputerStatisticsRecord Output Printer + Computer

Notice If Report is not defined separately after Sample and after Statistics, you may lose part ofyour data (valid only for titrators of the DL70 family)!


2.2 DLBase installation and setup

2.2.1 If you worked with DLBase V1.0Make a backup of the database DLBase V1.0 (File: DL_DB.MDB). This Database can beconverted with DLBase V2.0 later.

Notice Data files converted in DLBase V2.0 can no longer be read by DLBase V1.0

2.2.2 Creating directories• Use names with no more than 8 characters for your new directories.• Create the following directories if they are not yet present:

- Import directory DLBase (C:\DLBase\Data).- Record directory DLWin (C:\DLWin\Record\DLxx).- Working directory DLWin (C:\DLWin\Work\DLxx).

DLxx implies that you should create a directory for each titrator.

2.2.3 DLBase V2.0 installation and startup• Load CD-ROM.• Follow instructions given by the installation program.• Start DLBase. The database DL_DB2.MDB will be opened.• In the File menu select the Setup function.

• Enter the Import directory and Lab name.

2.2.4 Data backup• Make backups of original data regularly (REC*.*), at best daily.• Import data from DLWin to DLBase and empty the DLWin record directory ‘Record’:

Delete files REC*.* or move them to another directory.• Create a backup (DL_*****.MDB) of the DLBase database file.

Notice Files created in DLWin at different times may have the same name! Create backups withunambiguous names regularly and move these to separate directories.


2.3 DLWin setupTo facilitate optimal communication between DLWin and DLBase, DLWin must be setupas follows.

Notice Make sure you have installed all necessary directories on your hard disk (see Chapter2.2.2) before defining the following preferences!

2.3.1 Setup in the titrator window• In the Setup menu select the function Set preferences.• Select DLBase export and All data.• Check that the entries for your Working directory and Record directory are correct.

Hints⇒ The SYNC A<->B option is shown only for titrators of the DL70-family, can be used

only with the DL77 and does not influence data transfer in DLBase.⇒ The Record group is shown only for titrators of the DL70 family and DL50 family and

pertains only to the record parameter for data transfer between titrator and computer.These preferences have no influence on records sent from titrator to printer.


2.3.2 Setup in the System window• In the Setup menu select the function DLBase Directory.• Enter the directory defined in DLBase as the import directory.• In the Setup menu select the function Store.

2.3.3 Data conversion with DLConvFiles previously stored in DLWin (REC*.*) can be converted to DLBase format.• In the DLWin menu Tools select the function DLConv. The following dialog box

appears:

• Under Import enter the path to the source of the files to be imported.• Under Export enter the path to where the converted data will be stored.• In the Select files group select a file or indicate that all files (Select all) are to be

converted.• Use Convert to start conversion.• Use Exit to leave DLConv.

DLConv creates a record file DLConv.txt and stores it in the same export directory. Thisfile contains information pertaining to the conversion.


2.4 Working with DLEvalWith DLBase you have access only to original data. Data modified by DLEval can beviewed only in DLEval and must be recorded there.


2.5 Schematic overview: DLWin, DLBase and DLEvalThe following scheme shows how the individual components of the METTLER TOLEDOtitration software are connected:

1 Directory for DLBase files (the files are deleted automatically after they have beenimported successfully).

2 DLWin record directory for records and exported text files (ASCII, dBASE and Excel).3 DLWin working directory. Copies of methods, auxiliary functions, method records and

sample data are stored here.4 DLBase: Import directory (= 1).5 DLWin: DLBase directory (= 1).6 Records can be displayed and printed in the DLWin System window.7 DLWin: Record directory (= 2).8 DLWin: Working directory (= 3).9 DLConv: Import directory (= 2).10 DLConv: Export directory (= 1).

Database

DLWin

Titrator

DLEval DLBase

DLConv

Systemwindow

Titratorwindow

2Record

1Data

3Work

4 5 6 7 8

10 9


3 DLBase menus

Overview of DLBase menus and functions

File Import files Import files from the importdirectory.

New database Create and open new database.

Open database Open existing database.

Setup Specify import directory and labname.

Exit Exit DLBase.

Edit Copy Copy selected data to clipboard.

Select all data records Select whole table in view that isopen.

Search ... Search entries marked in table.

View Data records Open the view ‘Data records’.

SOPs Open the view ‘SOPs’.

Calibrations Open the view of all imported‘Calibrations’.

Titer determinations Open the view of all imported ‘Titerdeterminations’.

Window Tile Show open windows side by side.

Cascade Overlap open windows.

Arrange Icons Arrange icons for minimizedwindows.

? About DLBase Get information ‘About DLBase’.


Meanings of several command buttons

Closes current view.

Prints contents of current view.

Exports contents of current view to Excel.

Export to Excel• Press the button Excel-Export. The program Excel is opened automatically and

exported data are displayed.• Select Save as... and enter desired name. The file is stored in Excel.


3.1 FileThe first three menu entries under File can be opened only if all views are closed.

3.1.1 Import filesFiles stored in the import directory defined under Setup can be imported. If such files arefound, the following dialog box appears:

Clicking Yes causes the files to be imported. This dialog is also shown when DLBase isstarted and files are found in the import directory .

Imported files are named as follows:DBnnnnnn.mmm nnnnnn and mmm are continuous numbersIf such a file cannot be imported for any reason, it will be renamed ERnnnnnn.mmm andstays in the import directory. These files can be deleted once they are no longer requiredto find the error.

Hint⇒ Import all samples of a series together. If samples of a series are imported separately,

they will not be recognized as a series.

3.1.2 New databaseYou can create a new database. This is recommendable for databases exceeding acertain size to allow quick access to data.

Enter a file name of five characters or less in the box for ‘New database’. Confirm with OKto open the database. If you enter the name of an existing database, you will receive anerror message.


3.1.3 Open / Convert databaseOnce you have installed DLBase and restart the system for the first time, the databaseDL_DB2.MDB will be opened automatically.This command can be used to open a further DLBase V2.0 database.

If you try to open a DLBase V1.0 database (DL_DB.MDB), a dialog box asking whetheryou want to convert the database to DLBase V2.0 format appears.

Hint⇒ With DLBase V2.0 you can view, print and export such a converted database, but you

cannot import additional data.

3.1.4 SetupDefine the Import directory and the Lab name.

3.1.5 ExitDLBase is ended.


3.2 Edit

3.2.1 CopySelected data are copied to the clipboard.

3.2.2 Select all data recordsAll entries in the currently opened table are selected.

3.2.3 Search ...You can search for certain entries in a table. You must select the desired table first byclicking it before the command is carried out.


3.3 ViewThe views Data records, SOPs, Calibrations and Titer determinations can be openedonce all other views are closed.

3.3.1 Data recordsYou can view the data records you have imported. Data records can be deleted andfiltered or further views with information on the data records can be opened.

The table contains the following information about the data records:No. Record number. This number is assigned automatically by

DLBase. Each series is given a number.Method Number resp. ID of the method.Title Title of the method.Sample ID1 Only for titrators of the DL70 family.Sample ID2 For all titrators.Sample No. Number of the sample.Results Number of results for the sample.User User name.Start time Time determination started.Version Version (date/time) of the method.Import time Date and time of the import.

The group Sort according to allows you to determine which criteria you wish to use tosort the data.


3.3.1.1 Info on data record

Info on data record shows different kinds of information:- Sample data.- Results.- Short form of method (only for titrators of the DL70 family).- Raw data.With Report you can choose which data you wish to have sent to the printer.With View the desired raw data is displayed, such as the Table of measured values:


If you press the Curves button in the view of the Table of measured values, you areshown a plot of the titration curves. The plot varies depending on the type of titrator.Titrators of the DL50 and DL70 families show ‘E – V’ and ‘dE/dV – V’ plots. For a KFdetermination on the DL31 or DL38, ‘V – t’ and ‘Drift – t’ curves are shown. For a BromineNo. Determination on a DL38 the curves ‘V – t’ and ‘E – t’ are shown.

Hints⇒ The views of the functions ‘Calibration, ‘Auxiliary value’ and ‘Titer’ in the Raw data

group have a box titled ‘Value stored’. This indicates whether the value was stored bythe titrator. For titrators of the DL70 family this box is always empty, as these titratorsdo not send this information.

⇒ In the view of the ‘Titration’ function, the box ‘Titration mode’ is not filled in by titratorsof the DL70 family when dealing with raw data of a Learn titration.

3.3.1.2 Delete data recordIn DLBase you are only allowed to delete all entries of a series.

Should this be the last series of a particular method, then the SOP will also be deleted.


3.3.1.3 FilterThe Data record view can be limited so that only the data records of interest to you arevisible. When data from different methods are available, you must use the function Filterto sort your data before opening the Results view.

The following filter criteria are available:No. Data record number of a complete series.Method Number resp. ID of the method. (Advanced: see below).Titrator Data records according to the type of titrator family

(DL3x = DL31, DL38; DL5x = DL50, DL53, DL55, DL58; DL7x = DL67, DL70ES, DL77).

User User name.Start time Time the titration was started (from...to).Sample ID1 Only for titrators of the DL70 family.Sample ID2 For all titrators.

There may be several versions of a method. In this case the Advanced button in the Filterwill show a dialog similar to this:

Here you see that four different versions of one method are available. The middle twoentries refer to values from one DL31 method that can give results in different units: ‘µg ormg‘ resp. ‘ppm or %‘.If you confirm the view Filter with OK, the Data records view will show only the entriescorresponding to your choice.


3.3.1.4 ResultsYou can show all results from the data records corresponding to your choice of Filter.

The table shows the following information about the results:C-No. Continuous number assigned to the samples.Sample ID1 Only for titrators of the DL70 family.Sample ID2 For all titrators.Rn Single results.Method Number resp. ID of the method.Start time Time the determination started.User User name.Title Title of the method.Version Version (date/time) of the method.

Hint⇒ Depending on the type of filter selected, results from several series may be viewed.

This will occur only if all results are in the same unit of measurement.

Single results can be temporarily excluded from the statistical evaluation with thecommand Exclude. In this case all results from the selected sample are excluded. Theexcluded results become available again when the view Results is closed andsubsequently reopened.


The Statistics group in the Results view allows you to select one result, then to clickView. You are presented with the statistics with the SOP check:

When methods generated by different versions are selected, you receive a messagetelling you that the SOP check from the most recent version is used.

3.3.1.5 Cost evaluationYou are shown a view which displays the cost. The Price per sample must have beendefined in the SOP for the method for the cost to be evaluated.


3.3.2 SOPsYou can define standard operation procedures (SOPs) for each method. The commandopens the table with a list of the methods:

Use Edit to open the view of the SOP for the selected method:

You may enter the Version, the Author’s name, the Price per sample and, in the table,the Limits for the results. In the lower field you may enter the exact Description. Anauthor must be entered for each SOP. When you confirm this dialog with OK, you areasked whether the SOP version (date/time) should be updated.


3.3.3 CalibrationsThis command gives you an overview of all imported calibrations.

3.3.4 Titer determinationsThis command gives you an overview of all imported titer determinations.

3.4 WindowHere you select the arrangement of opened windows, adjacent (Tile) or overlapping(Cascade), or arrange the icons of minimized windows (Arrange Icons).

3.5 ? – MenuThis command brings information about your version of DLBase.


4 Appendix

4.1 Hardware and software requirements- Computer: IBM PC, PS/2 or 100% compatible computer with a 90 MHz or greater

Pentium processor- CD ROM drive- DLWin V3.0 or higher- At least 5.5 MByte memory on the computer hard disc- Mouse driven by Windows- Minimum one free serial port (RS232C)- Minimum 16 MByte RAM- Monitor: graphics card and matching color or monochrome monitor (VGA)- Printer: driven by Windows- Windows: Software version 3.1x, Windows9x (recommended), Windows NT 4.0 (or

higher)- Titrator: DL77, DL70ES, DL67 (V 3.1 or higher)

DL50, DL53, DL55, DL58 (V 2.0 or higher)DL31, DL38 (V 1.0 or higher)

- RS option for the DL70 family (ME 25690)RS card for the DL50family (ME 51107172)

- Connection cable: DL5x, DL7x DB9 female/Binder male (ME 201508)DB25 female/Binder male (ME 201507)

DL31, DL38 DB9 female/DB9 female (ME 51190362) DB25 female /DB9 female (ME 51107781)

4.2 Extent of delivery- CD ROM- Operating instructions

The program DLBase can be purchased individually or as a component of DLWin+.


4.3 Troubleshooting

Problem Source CorrectionDLBase won’t startup after installationof MS Access.

The MS Access installationprogram searches the hard discfor Access installations andremoves elements found there.This may result in the deletion offiles required for DLBaseoperation.

Reinstall DLBase.

DLBase fails torecognize certainsamples as a series(different datarecord numbers).

Each sample was importedindividually.

Import all samples of a seriestogether.

The statistics inDLBase and thetitrator differslightly.

DLBase calculates its ownstatistics and does not use thoseof the titrator. The use ofdifferent algorithms by titratorand DLBase may result inmarginal differences.

Files cannot beimported.

The files probably lack raw data. In DLWin open the Titratorwindow. Under Setup / Setpreferences select All data inthe record group.

DLBase won’t startor starts in a MSAccess window.

DLBase was probably startedusing the menu Tools in DLWinresp. DLBase was not installedunder C:\DLBase and Windowsnot under C:\Windows.

Change the entry for DLWin inthe menu Tools:c:\dlbase\msarn200.exec:\dlbase\dlbase.mdb /inic:\windows\dlbase.ini

Unexpected error1801

Entry does not conform to therequired format (e.g. unknownformat for the date).

Correctly define format.

Unexpected error58:File exists already.

When DLBase cannot import afile, it is renamedERnnnnnn.mmm. This erroroccurs when a file with this nameexists already.

Delete all files ER*.* in the importdirectory.

Unexpected error75:Path / data retrievalerror.

Your import files are probablywrite protected.

Cancel the write protection onthe files.


5 Index

Advanced..............................................19ASCII ....................................................10Backup....................................................6Calibrations.....................................16, 23Command buttons.................................12Computer ..........................................5, 24Conversion..............................................8Copy .....................................................15Cost evaluation .....................................21Curves ..................................................18Data records .........................................16Database ........................................13, 14Delete .............................................16, 18Directory .......................................6, 7, 10DL31 .....................................5, 18, 19, 24DL38 .....................................5, 18, 19, 24DL50 ...........................................5, 19, 24DL53 ...........................................5, 19, 24DL55 ...........................................5, 19, 24DL58 ...........................................5, 19, 24DL67 ...........................................5, 19, 24DL70 .......................................................7DL70ES ......................................5, 19, 24DL77 .......................................5, 7, 19, 24DLBase V1.0.....................................6, 14DLConv.........................................4, 8, 10DLEval ..........................................4, 9, 10DLWin ...............................4, 5, 6, 7, 8, 10DLWin Plus ...........................................24Error message ......................................25Excel ...............................................10, 12Exclude .................................................20Exit........................................................14Export .................................................7, 8Extent of delivery ..................................24Filter..........................................16, 19, 20Functions ..............................................11Getting started ........................................6Hardware and software requirements ...24Import......................................6, 8, 10, 13

Import directory.................6, 8, 10, 13, 14Import files ............................................13Installation...........................................5, 6Introduction .............................................4Lab name..........................................6, 14Learn titration........................................18Menus...................................................11Method................................16, 17, 19, 20Open.........................................13, 14, 16Original data .......................................6, 9Output instruments..................................5Printer .....................................5, 7, 17, 24Raw data.........................................17, 18Record ....................................................7Record directory ...........................6, 7, 10Report ...............................................5, 17Results....................16, 17, 19, 20, 21, 22Sample....................................................5Search ..................................................15Select....................................................15Series........................................13, 18, 19Series....................................................16Setup ....................................5, 6, 7, 8, 14SOP ....................................16, 18, 21, 22SOP check............................................21Statistics ...........................................5, 21SYNC A<->B...........................................7System window.......................................8Table of measured values...............17, 18Tips and tricks

Hints ............................7, 13, 14, 18, 20Notice ..........................................5, 6, 7

Titer determinations ........................16, 23Titration software ..............................4, 10Titrator ........................................5, 19, 24Titrator family ........................................19Titrator window .......................................7Tools .......................................................8Troubleshooting ....................................25Working directory..........................6, 7, 10

METTLER TOLEDO DLEval V1.0 1

2 METTLER TOLEDO DLEval V1.0


Contents DLEval V1.0

Page

1 Introduction ...................................................................................................4

2 Setting up DLEval .........................................................................................5

3 Working with DLEval ....................................................................................63.1 Data selection .................................................................................................83.2 Reevaluation .................................................................................................103.2.1 Tangents .......................................................................................................123.2.2 Tubbs ............................................................................................................133.2.3 Manual ..........................................................................................................143.2.4 Segmented....................................................................................................153.2.5 Extrapolation .................................................................................................163.3 Working with the property sheet....................................................................173.3.1 Recalculation ................................................................................................183.3.2 Results ..........................................................................................................203.3.3 Statistics........................................................................................................213.3.4 Raw data.......................................................................................................223.3.5 Sample information .......................................................................................243.3.6 Report ...........................................................................................................25

4 Appendix......................................................................................................264.1 Hardware and software requirements ...........................................................264.2 Extent of delivery ..........................................................................................264.3 Possible problems.........................................................................................26

5 Index.............................................................................................................27


1 Introduction

DLEval comprises one part of the METTLER TOLEDO titration software for the re-evaluation and recalculation of titrations and their results.

To work with DLEval V1.0, you require DLWin V3.0 and DLBase V2.0. With DLEval rawdata obtained from the titrator can be modified, results can be added or modified, statisticscan be recalculated and everything can be documented. In contrast to the evaluationbased on algorithms performed by the titrator, DLEval works with a graphical evaluation ofthe titration curves. The equivalence points and end points (EQP/EP) found may thusdeviate from another.


2 Setting up DLEvalDLEval runs under the operating systems Windows 95 and higher or Windows NT 4.0(from SP3) and higher. To work with DLEval V1.0 you need DLWin V3.0 and DLBaseV2.0.

This is how you install DLEval:• Install and load CD-ROM.• Follow the instructions given by the installation program.• If DLEval was not installed under C:\DLEval, enter the path for DLEval in DLWin under

Tools / Adapt.

METTLER TOLEDO titration software can be installed on one single computer, or onseveral computers within a network. Thus, it is possible to install DLWin on a computer inthe laboratory and to work with DLEval and DLBase in the office. To do this, the computersmust be connected in a network.

Do the following to install DLEval on several computers within a network:• Install DLWin on the computer in the laboratory.• In DLWin under Tools / Adapt delete the entries for DLBase and DLEval, since these

programs cannot be started from the other computer over the network.• Install DLBase and DLEval on the computer in the office.

Lab PC with DLWinOffice PC with DLEval and DLBase

Net server


3 Working with DLEvalThe user interface of DLEval is composed of the Menu, the Tool bar, the EQP/EPoverview, the Graphics window, the Data overview and also the Property sheet (seeChapter 3.3), with six property pages.

EQP/EP overview Graphics window

Data overview Property sheet


A single click of the left mouse key opens the window, in which you intend to work. Themenu, the tool bar and the context menu show you all the commands that can beexecuted.

With a double click of the left mouse key, you can select an EQP/EP.

With a single click of the right mouse key, the Context menu with the following functions isopened:• Data overview: Save series or Restore series or Refresh view. You can regain

access to the original data by using the command Restore series to even reversemodifications you made already.

• Property sheet / recalculation: Undo, Cut, Copy, Paste, Delete or Select all. TheUndo command reverses the effects of the last action.

• Graphics window: Select the display of the curves, have the first or second derivativeshown, or call up an evaluation procedure. With a second Context menu (another clickof the right mouse key), you can Modify current EQP/EP, Insert new EQP/EP or youcan Cancel the evaluation procedure.


3.1 Data selectionWhen you initially start up DLEval, you are asked to open a database in the followingdialog box. You can open another database at any time during your working session withDLEval.

Button for Open database

• Select the desired database. The data overview shows all series, samples anddeterminations contained in the database.


The Data overview allows you to select a determination that you wish to evaluate:

• Select the desired determination: its data are shown in the EQP/EP overview and in theproperty sheet. The reevaluation of the data can be undertaken in the graphics window.

Filter With this button, you can limit the data in the data overview tomake visible only those data that you consider relevant. Thefollowing filter criteria are available: Method, Version, Title,Titrator, User, Start time, and Sample ID.

Filter active The filter is activated or deactivated with a click in this box.

Print This command allows the data overview to be printed.

Method, title andstart time

Sample

Determination


3.2 ReevaluationOnce you have selected a determination (titration) you can begin with the reevaluation.The following evaluation procedures are available: Tangents, Tubbs, Manual ,Segmented and Extrapolation.

• Select the desired Evaluation procedure:- In the Tool bar click the corresponding Button or- In Menu under Reevaluation select an evaluation procedure or- In the Graphics window open the Context menu (click of the right mouse key) and

select an evaluation procedure.• Use the Cursor to position the Auxiliary lines and perform the reevaluation (see

Chapters 3.2.1 to 3.2.5). In all evaluation procedures, with the exception of Tubbs, themouse is moved in the horizontal direction; vertical movements of the mouse have noeffect.

Procedure to Modify or Insert an EQP/EP:• In the Context menu (click of the right mouse key), select an evaluation procedure.• Use the Cursor to choose the desired position, to which the current EQP/EP is to be

moved or the new EQP/EP is to be inserted.• In the second Context menu (another click of the right mouse key) select Modify

current EQP/EP or Insert new EQP/EP.• Confirm the following dialog. The EQP/EP is added to the graphics window. The

corresponding data are visible in the EQP/EP overview and in the property sheet.

Procedure to Delete an EQP/EP:• Select the desired EQP/EP with a double click.• In the menu Edit choose the command Delete EQP/EP or press the Delete key.• Confirm the following dialog. The EQP/EP is deleted from the graphics window and the

corresponding data from the EQP/EP overview and the property sheet.

Here some examples of the changes caused by the command Insert new EQP/EP:- An EQP/EP is inserted on the curve between two previously existing ones and the

corresponding data are displayed in the EQP/EP overview. The new EQP/EP receivesthe index 2.

- The previous EQP/EP 2 now receives the index 3.- The following raw data are changed and marked with an *:

VEQ2, Q2 and EPOT2 of the new EQP/EP 2.VEQ3 and Q3 of the EQP/EP with the new index 3.


The aforementioned changes in Raw data and Indices are shown here:

Reevaluation as a matter of course causes changes in the following raw data:VEQ Titrant consumption to the EQP/EP in mLQ Titrant consumption to the EQP/EP in mmol or µg

Depending on the type of titrator, the position of the EQP/EP and the type of curverepresentation, the following raw data may also be changed:EPOT Potential of the EQP/EP (only DL7x, DL5x: E-V representation)VEX Titrant excess in mL (only DL7x, DL5x)QEX Titrant excess in mmol (only DL7x, DL5x)neq Number of EQP/EP (only DL7x, DL5x: when one EQP/EP is added or deleted)VEQ, Q Volume of each successive EQP/EPVEQ and Q are always calculated on the basis of the previous EQP/EP. When there ismore than one EQP/EP, the raw data VEQ, Q and EPOT are indexed according to theincrease in volume of the titrant (see illustration).

All raw data that have been changed are marked with an *.

Limits of the reevaluation:- For a DOS (only DL7x), pH/mV-stat or Learn titration, no reevaluation can be

undertaken. You may only modify raw data.- For EP titrations or KF determinations, the function Insert new EQP/EP can be used

only when there is no previous EQP/EP or a previous one has been deleted.

VEQ1, Q1 VEX,QEX

New EQP/EP

VEQ1, Q1 VEQ3, Q3VEQ2, Q2 VEX,QEX

VEQ2, Q2before

after


3.2.1 TangentsThis evaluation procedure is used to evaluate symmetric S-shaped curves. Two tangentsare made to the titration curve. The point of intersection of the titration curve and the linecentered between the two tangents marks the EQP/EP. This evaluation is possible only forE-V curves and corresponds to the titrator evaluation ‘Standard’.

Button for the evaluation procedure Tangents.

• Position tangents by horizontal movement of the mouse.• Once the position is optimized, open the Context menu (click right mouse key).• Select Modify current EQP/EP or Insert new EQP/EP.


3.2.2 TubbsThe evaluation procedure according to Tubbsis used for asymmetric S-shaped titrationcurves. Two circles of the maximum diameter are fitted to the titration curve. The point ofintersection of the titration curve and the line connecting the midpoints of the two circlesmarks the EQP/EP. This evaluation is possible only for E-V curves and corresponds to thetitrator evaluation ‘Asymmetric’.

Button for the evaluation procedure Tubbs.

• Position circles by moving the mouse. Clicking the centered marker cross activates thecircular template.

• Once the position is optimized, open the Context menu (click right mouse key).• Select Modify current EQP/EP or Insert new EQP/EP.

You can determine the size ofthe circles and number ofcircles as follows:• Select Settings / Tubbsthe

following dialog appears.• Select Size of circles and

Number of circles for bothtemplates.

• Confirm with OK.


3.2.3 ManualThe manual evaluation procedure can be used for all titration curves. Using the cursor, youcan insert a new EQP/EP or modify an existing one at any desirable point of the curve. It isrecommendable to zoom in on the interesting portion of the curve and to have the firstderivative shown for E-V curves before the evaluation is performed. The titrators do notsupport a corresponding evaluation.

Button for the evaluation procedure Manual.

• Position the marker cross by horizontal movement of the mouse. The matching x/y-values are shown at the top of the display on the right side.



3.2.4 SegmentedThis evaluation procedure is used for L-shaped titration curves (conductometric titrations,amperometric vitamin C determination, photometrically indicated titration, etc.) as well asfor curves with a maximum or minimum. In contrast to the evaluation ‘Segmented’ on thetitrator, it allows evaluation of titration curves with a first derivative that is not an S-shapedcurve. The evaluation of a segmented curve follows by positioning two lines on the desiredportion of the curve. The projected point of intersection of the two lines on the titrationcurve marks the EQP/EP. This evaluation is possible only for E-V curves.

Button for the evaluation procedure Segmented.

• Position both lines by horizontal movement of the mouse. Clicking the circularreference marker activates the other line.



3.2.5 ExtrapolationThis evaluation procedure is used when continuous post-consumption caused by a side-reaction is present, such as for a KF titration. It is possible to approximate the actual endpoint of the titration by extrapolating to time t=0. The evaluation is performed by fitting aline to the flat part of the titration curve. The point of intersection between the line and thevolume axis is the volume at the EQP/EP (extrapolation to t=0). This evaluation is possibleonly for V-t curves.

Button for the evaluation procedure Extrapolation.

• Position the line by horizontal movement of the mouse.• Once the position is optimized, open the Context menu (click right mouse key).• Select Modify current EQP/EP or Insert new EQP/EP.

Hint:⇒ Please note that extrapolation also eliminates the effect of Drift. Thus you should avoid

using drift compensation (COMP for DL31/38) when calculating the results.


3.3 Working with the property sheetThe property sheet allows you to calculate results and statistics, modify raw data, take alook at sample information as well as to specify the report to print the data or curves. Theproperty sheet is composed of six property pages:Recalculation, Results, Statistics, Raw data, Sample information and Report.


3.3.1 RecalculationThis property page allows you to modify existing results or add new results. Themodifications always pertain to all the samples of a series.The titrators of the DL70 family or the DL31 or DL38 save the formulae used in the methodin the database automatically. For titrators of the DL50 family, you must use the commandFormula from file to import formulae from a method listing that was previously saved inDLWin.The pull-downlist box can be used to select from a list of available choices.

Result no. Number of the result to be recalculated.Result name Name of the result.Result unit Unit of the result.Decimal places Number of decimal places for R and C.Formula R Calculation formula.Constant C Constant.

New Produces a new result.Formula from file... Opens the dialog to find the method listing.Formula assistant... Opens the dialog with a list of symbols for formulae.Calculation Recalculates formulae and constants.Print Prints the view of this property page.

In DLEval, the Index of the constant must correspond to that of the result. Thus, C3 isalways a constant of R3.


The following mathematical operations can be used in the formulae:

Addition + Subtraction -Multiplication * Division /Logarithm base 10 lg (x) Logarithm base e ln (x)Exponential function base 10 pw (x) Exponential function base e ex (x)Square sq (x) Square root sr (x)

The symbols used in the Formula assistant may bear an Index (see Chapter 8 of theOperating instructions of the DL5x and DL7x titrators).

Index type Example Explanationi VEQ2 This index indicates the ith occurrence of a raw value within the

methods function. VEQ2 is the volume of the 2nd EQP/EP of thefirst or the only methods function (titration).

[i] VEQ2[3] This index indicates the ith occurrence of the methods function.VEQ2[3] is the volume of the 2nd EQP/EP of the 3rd methodsfunction (titration).

i R4, H4 For results and auxiliary values, the user enters the number in themethod.

The raw data c, t, CONC and N are not indexed by the titrator. Instead, they are assignedas the method proceeds. Since DLEval possesses no information about this, you mustselect the proper value for these raw data in the following dialog:

Hint⇒ The Index 1 is optional and can be omitted (i.e.: VEQ1[1] = VEQ).


3.3.2 ResultsThis property page presents you with an overview of all the results for the selected series:Sample ID, Result number, Result name, Result and Unit.

Print Prints the present list of results.


3.3.3 StatisticsThis property page allows you to create new statistics for the results. The list top leftshows you all the results available for the whole series. The list top right indicates whichresults have been selected for statistics. Pressing the button Exclude opens a dialog thatallows you to exclude single samples from the statistics. The list on the bottom shows theresults of the statistics. The column n indicates the number of samples used for thestatistics for each result. If the column Unit shows the symbol [?], then the results ofvarious samples have different units (DL31 only); the statistics are not calculated in thiscase. The statistical data produced by DLEval (mean value x, standard deviation s andrelative standard deviation srel) are not marked with a *.

Exclude Opens a dialog that allows you to exclude single samples fromthe statistics.

Print Prints the view of this property page.

Hint⇒ A Mean value is calculated only when the number of results used for the statistics

exceeds one. The standard deviation s and the relative standard deviation srel arecalculated only when the number of results used for the statistics exceeds two.


3.3.4 Raw dataThis property page presents you with an overview of all the raw data for the selectedseries: Symbol, Value, Unit, Function and Function index. The list of all the raw datathat you can modify will be found later in this chapter.

Modify If you have selected a symbol, this button can be used to opena dialog that shows the function, symbol and value. A newvalue can be entered and you may choose whether you wantthe modification to apply to all samples of the series or thissample only.

Print Prints the present list of raw data.


The list of all raw data, that you can Modify:

Symbol Name Titrator Af fects RemarksBLANK Blank value [µg] or [mmol] DL 31/38 KF [µg], BZ [mmol]d Density of sample DL 31/38 Change formula (see Chapt. 4.3) !

DRIFT Drift [µg/min] DL 31/38 COMPf1, f2, f3 Calculation factor DL 31/38m Sample size DL 31/38,

5x, 7xREF (DL31/38)

DL7x: weight

VEQ Titrant consumption to EQP/EP [mL]

DL 31/38, 5x, 7x

Q Will be changed by reevaluation

x, s, srel Mean value, Standard deviation, rel. Standard deviation

DL 31/38, 5x, 7x

Will be changed by statistics, do not appear under raw data and are not marked with *

c Concentration (nominal value) of titrant [mol/L]

DL 31/38, 5x, 7x

CONC, N ,Q, QDISP, QEX, QEND, QTOT, QP1, QP2, QSTAT

Depending on function of the method and titrator type

EPOT Potential at EQP/EP 5x, 7x Will be changed by reevaluationf Correction factor 5x, 7xH Auxiliary value 5x, 7xM Molar mass [g/mol] 5x, 7xneq Number of EQP/EP 5x, 7x Might be changed by reevaluationt Titer of the titrant 5x, 7x CONC, N, Q,

QDISP, QEX, QEND, QTOT, QP1, QP2, QSTAT

Depending on function of the method and titrator type

VEX, QEX

Titrant excess in [mL] or [mmol]

5x, 7x Might be changed by reevaluation

z Equivalence number 5x, 7xU Sample size 7x DL7x: volume

Time Duration of determination DL 31/38 COMP Will be changed by reevaluationRn [%], Rn [ppm]

Content with drift compensation in [%] resp. [ppm]

DL 31/38 Q Will be changed by reevaluation

CONC Concentration (actual value) of titrant [mol/L]

DL 31/38 Q DRIFT is not changed


3.3.5 Sample informationThis property page presents you with an overview of the Sample ID, Sample size andCorrection factor of all samples of the selected series.

Print Prints the list of the sample information.


3.3.6 ReportThis property page presents you with a list of all data that can be printed. You can choosewhether you want to print data for the current sample only or data for all samples of theseries.

Print Prints the selected data.

When this field is checked, then data of the current sample onlyare printed. Otherwise the data of all samples of the series willbe printed.


4 Appendix

4.1 Hardware and software requirements- Computer: IBM PC, PS/2 or 100% compatible computer with minimum 90 MHz

Pentium processor, at least 5.5 MByte memory on the hard disk and minimum 16MByte RAM; Mouse supported by Windows; CD-ROM drive. Windows 95 and higher orWindows NT 4.0 (from SP3) and higher.

- Monitor: graphics card and appropriate color monitor (Super VGA, 800 x 600, better1024 x 768 or higher).

- Printer: supported by Windows.- DLWin V3.0 and DLBase V2.0.

4.2 Extent of delivery- CD-ROM- Operating instructions

The program DLEval can be purchased individually or as a component of DLWin Plus.

4.3 Possible problems- DL31 or DL38: When the density of the sample is used in the calculation of a result, the

calculation proceeds correctly on the titrator. The formula will, however, be transferredto DLWin incorrectly. A recalculation in DLEval will then lead to an incorrect result.To correct this: replace ‘m’ (sample size) in the formula by ‘m*d’ (sample size *density).

- Formulae containing conditions, such as VEQ(0<EPOT<10), cannot be used inDLEval.

- The raw data value CSTAT cannot be used in formulae for DLEval.- If an EQP/EP comes to lie slightly to the side of the curve, the following reason may

apply: DLEval creates curves by connecting adjacent measurement points with straightlines. In the determination of the exact location of the EQP/EP, algorithms relying on anatural curvature are used. The fewer the measurement points in the area to bedetermined are in number, the larger the deviation may be.


5 Index

Context menu..........................................7Data overview .....................................6, 9DLWin Plus ...........................................26EQP/EP overview ...................................6Extrapolation.........................................16Filter........................................................9Formula assistant..................................18Formula from file ...................................18Graphics window.....................................6Hardware and software requirements ...26Index ...............................................10, 19Installation...............................................5Introduction .............................................4Limits ....................................................11Manual ..................................................14Modify .............................................22, 23

Open database .......................................8Problems...............................................26Property page ...................................6, 17Property sheet ..................................6, 17Raw data...............................................22Recalculation ........................................18Reevaluation.........................................10Report ...................................................25Results..................................................20Sample information...............................24Segmented ...........................................15Setting up................................................5Statistics ...............................................21Tangents...............................................12Tubbs....................................................13

To protect your METTLER TOLEDO product’s future:METTLER TOLEDO Service assures the quality, measuring accuracyand preservation of value of all METTLER TOLEDO products for yearsto come. Please send for full details about our attractive terms ofservice. Thank you.

Printed on 100% chlorine-free paper, for the sake of our environment.

Subject to technical changes.

© Mettler-Toledo GmbH 1999 ME-51709988 Printed in Switzerland 9911/2.12

Mettler-Toledo GmbH, Analytical, Sonnenbergstrasse 74, CH-8603 Schwerzenbach, Tel. (01) 806 77 11, Fax (01) 806 73 50Internet: http://www.mt.com

*P51709988*

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