Alt b Plt a Plt f Ba e 1231

7/28/2019 Alt b Plt a Plt f Ba e 1231

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KERN & Sohn GmbHZiegelei 1

D-72336 Balingen

E-Mail: [email protected]

Phone: +49-[0]7433- 9933-0

Fax: +49-[0]7433-9933-149

Internet: www.kern-sohn.com

Operating instructions

Analytical and precision balances

KERN ALT_B-PLT_A-PLT_FVersion 3.1

08/2012GB

ALT_B-PLT_A-PLT-F-BA-e-1231


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2 ALT_B-PLT_A-PLT_F-BA-e-1231

GBKERN ALT_B-PLT_A-PLT_FVersion 3.1 08/2012

Operating instructionsElectronic analytical and precision balances

Contents

1 Technical data ................................................................................................ 42 Appliance overview ....................................................................................... 82.1 Operating side .......................................................................................................................... 82.1.1 Back and bottom side ............................................................................................................... 102.2 Keyboard overview ................................................................................................................. 112.2.1 Navigation buttons / numeric input ........................................................................................... 122.3 Overview of display ................................................................................................................ 133 Basic instructions ........................................................................................ 153.1 Proper use ............................................................................................................................... 153.2 Improper Use........................................................................................................................... 153.3 Warranty .................................................................................................................................. 153.4 Monitoring of Test Resources ............................................................................................... 154 Basic Safety Precautions ............................................................................ 164.1 Pay attention to the instructions in the Operation Manual ................................................ 164.2 Personnel training .................................................................................................................. 165 Transport and storage ................................................................................. 165.1 Testing upon acceptance ...................................................................................................... 165.2 Packaging / return transport ................................................................................................. 166 Unpacking, Setup and Commissioning ..................................................... 176.1 Installation Site, Location of Use .......................................................................................... 176.2 Unpacking, Scope of delivery ............................................................................................... 186.3 Placing ..................................................................................................................................... 186.4 Connect and switch-on power supply .................................................................................. 206.5 Connection of peripheral devices ......................................................................................... 206.6 Initial Commissioning ............................................................................................................ 217 Adjustment (all models excepted PLT-M) .................................................. 217.1 Adjustment with internal weight after pressing the CAL button ....................................... 237.2 Automatic adjustment with internal weight (factory setting) ............................................. 237.3 Adjustment with external adjustment weight ...................................................................... 247.4 Overwrite internal adjustment weight .................................................................................. 258 Adjustment of models PLT-M ..................................................................... 268.1 Automatic adjustment with internal weight ......................................................................... 279 Verification ................................................................................................... 28


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ALT_B-PLT_A-PLT_F-BA-e-1231 3

10 Basic Operation ........................................................................................... 2910.1 Switch on off balance ............................................................................................................. 2910.2 Zeroing..................................................................................................................................... 2910.3 Simple weighing ..................................................................................................................... 3010.4 Capacity display ..................................................................................................................... 3010.5 Weighing with tare .................................................................................................................. 3110.5.1 Determination of the tare weight by weighing....................................................................... 3110.6 Underfloor weighing ............................................................................................................... 3211 Setup menu .................................................................................................. 3311.1 Weighing Units ....................................................................................................................... 3811.2 RS232 ....................................................................................................................................... 3911.3 Baud rate ................................................................................................................................. 4011.4 Auto Zero ................................................................................................................................. 4111.5 Filter ......................................................................................................................................... 4211.6 Stability .................................................................................................................................... 4311.7 Setting the contrast of the display ........................................................................................ 4411.8 Display background illumination .......................................................................................... 4511.9 Automatic switch-off function AUTO OFF........................................................................ 4611.10 Setting date and time ............................................................................................................. 4711.11 Language operator guide ...................................................................................................... 4811.12 Adjustment mode ................................................................................................................... 4911.13 Adjustment log ........................................................................................................................ 5012 Main Menu .................................................................................................... 5112.1 Parts counting ........................................................................................................................ 5212.1.1 Determine reference by weighing ......................................................................................... 5212.1.2 Numeric entry of the reference weight ................................................................................. 5612.1.3 Automatic reference optimization ......................................................................................... 5712.2 Density determination (Hydrostatic weighing) .................................................................... 5812.2.1 Density determination of solids ............................................................................................ 5812.2.2 Determining density of liquids .............................................................................................. 6212.3 Formula mode ......................................................................................................................... 6512.3.1 Formulation without using the recipe data base ................................................................... 6512.3.2 Formulation using the recipe data base ............................................................................... 6712.4 Check weighing ...................................................................................................................... 7712.5 Percent determination ............................................................................................................ 8012.5.1 Entering the reference weight by weighing ........................................................................... 8012.5.2 Numeric entering of the reference weight ............................................................................ 8112.6 Animal weighing function ...................................................................................................... 8212.7 Peak value function ................................................................................................................ 8312.8 GLP function (Good laboratory practice) ............................................................................. 8413 Data output RS 232C ................................................................................... 8613.1 Technical data ......................................................................................................................... 8613.2 Pin allocation of balance output plug .................................................................................. 8613.3 Interface ................................................................................................................................... 8713.4 Format Data transfer .............................................................................................................. 8814 Error messages ............................................................................................ 8915 Service, maintenance, disposal .................................................................. 9015.1 Clean ........................................................................................................................................ 9015.2 Service, maintenance ............................................................................................................. 9015.3 Disposal ................................................................................................................................... 9015.4 Instant help ............................................................................................................................. 9116 Declaration of conformity ........................................................................... 92


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1 Technical data

KERN ALT 160-4B ALT 250-4B ALT 220-5DA

Weighing range (max) 160 g 250 g 60 g; 220 g

Readability (d) 0.1 mg 0.1 mg 0.00001 g;0.0001 g

Reproducibility 0.1 mg 0.1 mg 0.0001 g

Linearity 0.3 mg 0.3 mg 0.0003 g

Stabilization time (typical) 4 s 4 s 4 s

Minimum unit weight at

piece counting > 0.5 mg > 0.5 mg > 0.5 mg

Warm-up time 8 hours

Adjustment weight internal

Reference quantities atpiece counting

10, 25, 50, 100, freely selectable

Weighing Unitsct, dwt, g, gn, lb, mo, oz, ozt,

tl (HK), tl (Singap. Malays), tl (Tw)

Secondary voltage powerpack 24 V AC, 500mA

Operating temperature + 5 C . + 35 C

Humidity of air max. 80 % (not condensing)

Housing (B x D x H) mm 210 x 340 x 330

Dimensions of windshield(B x D x H) mm

160 x 140 x 205 (inside)190 x 195 x 225 (outside)

Weighing pan (stainless steel) 80 mm

Weight kg (net) 5.7 kg

Interface RS 232C


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KERN PLT 720-3A PLT 1200-3A PLT 6200-2A

Weighing range (max) 720 g 1200 g 6200 g

Readability (d) 1 mg 1 mg 10 mg

Reproducibility 1 mg 1 mg 10 mg

Linearity 2 mg 2 mg 30 mg

Stabilization time (typical) 2 s 2 s 2 s

Minimum unit weight atpiece counting

> 5 mg > 5 mg > 50 mg

Warm-up time 4 hours 8 hours 4 hours




Weighing Unitsct, dwt, g, gn, lb, mo, oz, ozt,

tl (HK), tl (Singap. Malays), tl (Tw)

Input Voltage 220 - 240V AC 50 Hz

Secondary voltagepowerpack

24 V AC, 500mA

Operating temperature + 5 C / + 35 C


Housing (B x D x H) mm 210 x 340 x 160 210 x 340 x 100

Dimensions of windshield 150, 60 high (inside) 160, 70 high (outside)

-

Weighing pan (stainlesssteel)

11 cm 16 cm

Weight kg (net) 4.5 kg

Interface RS 232C

Underfloor weighing device Eyelet


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KERN PLT 420-3F PLT 4200-2F

Weighing range (max) 420 g 4200 g

Readability (d) 1 mg 10 mg

Reproducibility 1 mg 10 mg

Linearity 4 mg 40 mg

Stabilization time (typical) 2 s 2 s


> 5 mg > 50 mg





Weighing Unitsct, g, gn, lb, mo, oz, ozt,

tl (HK), tl (Singap. Malays), tl (Tw), tol


Secondary voltage

powerpack 9 V 1000 mA, DC



Housing (B x D x H) mm 210 x 340 x 160


Weighing pan (stainlesssteel) 11 cm 16 cm

Weight kg (net) 4 kg

Interface RS 232C

Underfloor weighing device -


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KERN PLT 720-3AM PLT 6200-2AM

Weighing range (max) 720 g 6200 g

Readability (d) 1 mg 10 mg

Reproducibility 1 mg 10 mg

Linearity 2 mg 30 mg

Verification value (e) 0,01 g 0,1 g

Verification class II II

Minimum load (Min) 20 mg 50 mg

Stabilization time (typical) 2 s 2 s


> 5 mg > 50 mg





Weighing Units ct, g


Secondary voltagepowerpack

24 V DC, 500 mA,



Housing (B x D x H) mm 210 x 340 x 160 210 x 340 x 100


-

Weighing pan (stainlesssteel)

11 cm 16 cm

Weight kg (net) 4.5 kg 4.5 kg

Interface RS 232C

Underfloor weighing device Eyelet


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2 Appliance overview

2.1 Operating side

Models ALT

Models PLT, d = 1 mg


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Windshield Levelling screw Weighing pan Bubble level Display Cover windshield Keyboard


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2.1.1 Back and bottom side

1. Weighing pan

2. RS232C-interface

3. Footscrews

4. Mains adapterconnection

5. Casing screws(in models with four

feet first screw outboth rear feet)

6. Underfloor weighingdevice(remove cover)


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2.2 Keyboard overview

Key Description Description

MENU button

Invoke main menu

How to select menu items

Press untilthe acousticsignal gets

mute

Invoke setup menu

Exit setup menu

ON/OFFbutton

Turn on/off

Exit main menu

CAL-keyAdjustment

How to select menu items

PRINT buttonCalculate weighing data via interface

Confirm / store settings

TARE buttonTaring

Zeroing


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2.2.1 Navigation buttons / numeric input

Key Description Function

Navigation button

Increase digitScroll forward in menu

Set decimal place

Navigation button

Reduce digit

Scroll backwards in menu

Change capital/small letters

Press MENU button until the acoustic signal getsmute

Navigation button

Position digit

Delete input

Navigation button Store

ESC cancel


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2.3 Overview of display

1 Capacity display

2 Stability display3 Zero indicator

4 Numerical display/menu

5 Unit

6 Current time

7 Current date

Display Description see chap.

Stability display+

Chap. 10.3Zero indicator + Chap. 10.2

Balance is in percent determination mode + Chap. 12.5

PC Balance is in parts counting mode + Chap. 12.1

H Upper limit+ Chap.12.4.

L Lower limit

DS The balance is in density determination mode + Chap. 12.2

g Weighing unit Gram

Chap. 11.1

ct Weighing unit Carat

Oz Weighing unit Ounce

Lb Weighing unit Pound

Dwt Weighing unit Pennyweights

Ozt Weighing unit Troy ounce

GN Weighing unit Grain

tl 1 Weighing unit Hongkong Tael

tl 2 Weighing unit Singapore Tael

tl 3 Weighing unit Taiwan Tael

mo Weighing unit Momme


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Operator guidance:In a selected application you are guided step-by-step through that application.Selectable languages (D, GB, F, IT. ESP, P; see chap. 11.11).

Display example Piece counting

8 Active application

9 Current date

10 Current time

11 Operation step to be carried out


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3 Basic instructions

3.1 Proper use

The balance you purchased is intended to determine the weighing value of material

to be weighed. It is intended to be used as a non-automatic balcance, i.e. thematerial to be weighed is manually and carefully placed in the centre of the weighingpan.. As soon as a stable weighing value is reached the weighing value can be read.

3.2 Improper Use

Do not use balance for dynamic weighings. In the event that small quantities areremoved or added to the material to be weighed, incorrect weighing results can bedisplayed due to the stability compensation. (Example: Slowly draining fluids from acontainer on the balance.)Do not leave permanent load on the weighing pan. This may damage the measuring

system.Impacts and overloading exceeding the stated maximum load (max) of the balance,minus a possibly existing tare load, must be strictly avoided. Balance may bedamage by this.Never operate balance in explosive environment. The serial version is not explosionprotected.The structure of the balance may not be modified. This may lead to incorrectweighing results, safety-related faults and destruction of the balance.The balance may only be used according to the described conditions. Other areas ofuse must be released by KERN in writing.

3.3 WarrantyWarranty claims shall be voided in case

1. Our conditions in the operation manual are ignored2. The appliance is used outside the described uses3. The appliance is modified or opened4. Mechanical damage or damage by media, liquids, natural wear and tear5. The appliance is improperly set up or incorrectly electrically connected6. The measuring system is overloaded

3.4 Monitoring of Test Resources

In the framework of quality assurance the measuring-related properties of thebalance and, if applicable, the testing weight, must be checked regularly. Theresponsible user must define a suitable interval as well as type and scope of thistest. Information is available on KERNs home page (www.kern-sohn.com withregard to the monitoring of balance test substances and the test weights required forthis. In KERNs accredited DKD calibration laboratory test weights and balances maybe calibrated (return to the national standard) fast and at moderate cost.
http://www.kern-sohn.com/http://www.kern-sohn.com/http://www.kern-sohn.com/


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4 Basic Safety Precautions

4.1 Pay attention to the instructions in the Operation Manual

Carefully read this operation manual before setup andcommissioning, even if you are already familiar with KERNbalances.

All language versions contain a non-binding translation. Theoriginal German is binding.

4.2 Personnel training

The appliance may only be operated and maintained by trained personnel.

5 Transport and storage5.1 Testing upon acceptance

When receiving the appliance, please check packaging immediately, and theappliance itself when unpacking for possible visible damage.

5.2 Packaging / return transport

Keep all parts of the original packaging for a possibly required return.

Only use original packaging for returning.

Prior to dispatch disconnect all cables and remove loose/mobile parts.

Reattach possibly supplied transport securing devices.

Secure all parts such as the glass wind screen, the weighing platform,power unit etc. against shifting and damage.


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6 Unpacking, Setup and Commissioning

6.1 Installation Site, Location of Use

The balances are designed in a way that reliable weighing results are achieved in

common conditions of use.You will work accurately and fast, if you select the right location for your balance.On the installation site observe the following:

Place the balance on a firm, level surface

Avoid extreme heat as well as temperature fluctuation caused by installing nextto a radiator or in the direct sunlight

Protect the balance against direct draughts due to open windows and doors

Avoid jarring during weighing

Protect the balance against high humidity, vapours and dust

Do not expose the device to extreme dampness for longer periods of time.Non-permitted condensation (condensation of air humidity on the appliance)may occur if a cold appliance is taken to a considerably warmer environment.In this case, acclimatize the disconnected appliance for ca. 2 hours at roomtemperature.

Avoid static charge of goods to be weighed and weighing container.

Major display deviations (incorrect weighing results) may be experienced shouldelectromagnetic fields (e.g. due to mobile phones or radio equipment), staticelectricity accumulations or instable power supply occur. Change location or removesource of interference.


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6.2 Unpacking, Scope of delivery

Remove device and accessories carefully from packaging, remove packaging

material and place device at the planned work place. Verify that there has been no

damage and that all packing items are present.

Scope of delivery / serial accessories:

Balance, see chap. 2

Mains adapter

Protective cover

Operating instructions

Transport Securing

6.3 Placing

The right place is decisive for the accuracy of the weighing results of high-resolutionanalytical and precision balances (see chap. 6.1).

Remove transportation lock

On the left lower side of the balance replace the golden-coloured screw with thesilver-coloured one (see label).


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Install weighing pan as per illustration

Models ALT Models PLT, d = 1 mg



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Levelling balance

Level balance with foot screws until the air bubble of thewater balance is in the prescribed circle.

Check levelling regularly.

6.4 Connect and switch-on power supply

Before connecting the mains adapter check if the printed voltage value is the sameas the local supply voltage. Only use KERN original mains adapter. Using othermakes requires consent by KERN.

Supply power to balance via mains adapter.

The balance will carry out a self-test Then the balance is set into stand-bymode, OFF is displayed.

To switch on press the ON/OFF button. During the display CAL adjustmentis automatically carried out with the internal adjustment weight (see chap.7.2). As soon as the weight display appears, the balance is ready forweighing.

To switch off, press the ON/OFF button again. The balance returns intostand-by mode.

6.5 Connection of peripheral devices

Before connecting or disconnecting of additional devices (printer, PC) to the datainterface, always disconnect the balance from the power supply.With your balance, only use accessories and peripheral devices by KERN, as theyare ideally tuned to your balance.


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6.6 Initial Commissioning

In order to obtain exact results with the electronic balances, your balance must havereached the operating temperature (see warming up time chap. 1).

During this warming up time the balance must be connected to the power supply(mains, accumulator or battery).The accuracy of the balance depends on the local acceleration of gravity.Strictly observe hints in chapter Adjustment.

7 Adjustment (all models excepted PLT-M)As the acceleration value due to gravity is not the same at every location on earth,each balance must be coordinated - in compliance with the underlying physicalweighing principle - to the existing acceleration due to gravity at its place of location(only if the balance has not already been adjusted to the location in the factory). Thisadjustment process must be carried out for the first commissioning, after eachchange of location as well as in case of fluctuating environment temperature. Toreceive accurate measuring values it is also recommended to adjust the balanceperiodically in weighing operation.

Observe stable environmental conditions. A warming up time (see chapter 1) isrequired for stabilization.

Ensure that there are no objects on the weighing pan.

Issue of an adjustment log, see chap. 11.13

The balances have been set to Automatic adjustment (see chap.7.2) by factory. Ifnecessary, in the menu the following possibilities of adjustment can be activated.

Internal adjustm. Adjustment with internal weight after pressing CAL

External adjustm. Adjustment with external weight

Technical

adjustm.Overwrite internal adjustment weight

Autom. adjustm. Automatic adjustment with internal weight.


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7.1 Adjustment with internal weight after pressing the CAL button

Condition: Menu setting Internal adjustm., see chap.7

In weighing mode press the CAL button, adjustment will take place

automatically.

After successful adjustment the balance automatically returns to weighingmode.

In case of an adjustment error (e.g. objects on the weighing pan) thedisplay will show an error message CAL bUt, repeat adjustment usingthe CAL button.

7.2 Automatic adjustment with internal weight

(factory setting)

Condition: Menu setting Autom.adjustm., see chap.7

The automatic adjustment with internal weight (see chap. 7.1)is startedautomatically, if the balance

after the weighing balance was disconnected from the mains

after pressing ON/OFF in stand-by mode

after a temperature change of 1.5 C with non loaded weighing pan / zerodisplay

after a time interval of 20 minwith non loaded weighing pan / zero display

The automatic adjustment function is always enabled. However you can make amanual adjustment at any time with the internal or an external weight,

see chap. 7.1 or chap. 7.3.


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7.3 Adjustment with external adjustment weight

Condition: Menu setting External adjustm., see chap.7 At the models with internal adjustment weight the adjustment with

external weight is not recommended. Information about test weights you will find in the internet underhttp://www.kern-sohn.com

Ensure that there are no objects on the weighing pan. In weighing mode pressthe CAL button.

Wait until the weighed value for the required adjustment weight appearsflashing.

During the flashing display put the required adjustment weight carefully in thecenter of the weighing pan. The flashing display disappears.

After successful adjustment the balance automatically returns to weighingmode.

Take away adjustment weight
http://www.kern-sohn.com/http://www.kern-sohn.com/


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7.4 Overwrite internal adjustment weight

Overwriting is restricted to specialist staff possessing well acquainted withthe workings of weighing scales.

Information about test weights you will find in the internet underhttp://www.kern-sohn.com

Call up menu item Techn. adjustment, see chap.7.

To confirm press the PRINT button and keep it pressed until the acoustic signalgets mute.

Press the MENU button and keep it pressed until the acoustic signal gets mute.The balance returns automatically into weighing mode.

Ensure that there are no objects on the weighing pan. Press the CAL key

Wait until the weighing value of the adjustment weight appears flashing.

During the flashing display put the required adjustment weight carefully in thecenter of the weighing pan. The flashing display disappears.

Wait for stability display, remove adjustment weight.

Keep the PRINT button pressed until the acoustic signal gets mute. The internaladjustment weight is overwritten.

After successful overwriting, the balance automatically returns to weighing

mode.
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8 Adjustment of models PLT-MAs the acceleration value due to gravity is not the same at every location on earth,each balance must be coordinated - in compliance with the underlying physicalweighing principle - to the existing acceleration due to gravity at its place of location

(7.2 only if the balance has not already been adjusted to the location in the factory).This adjustment process must be carried out for the first commissioning, after eachchange of location as well as in case of fluctuating environment temperature. Toreceive accurate measuring values it is also recommended to adjust the balanceperiodically in weighing operation.

Observe stable environmental conditions. A warming up time (see chapter 1) isrequired for stabilization.

Ensure that there are no objects on the weighing pan.

Issue of an adjustment log, see chap. 11.13


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8.1 Automatic adjustment with internal weight

The automatic adjustment with internal weight (see chap. 7.1)is started

automatically, if the balance

after the weighing balance was disconnected from the mains

after pressing ON/OFF in stand-by mode

after a temperature change of 1.5 Cwith non loaded weighing pan / zero display

after a time interval of 20 min with non loaded weighing pan / zerodisplay

The automatic adjustment function is always enabled. At any time, however, you cancarry out a manual adjustment (press CAL-button) using the internal adjustmentweight, see chap. 7.1.

Or selecting the adjustment mode in the menu:

In weighing mode press the MENU button and keep it pressed until the acousticsignal gets mute. The setup menu is displayed.

Use the navigation buttons

to select the menu item Adjustment mode.

Confirm by the PRINT button, Autom. Just. will be displayed.

Take over selection using the PRINT button.Weighing balance returns to menu. Either make more settings in the menu or goback to weighing mode as follows.



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9 Verification

General introduction:

According to EU directive 90/384/EEC balances must be officially verified if they are used asfollows (legally controlled area):

a) For commercial transactions if the price of goods is determined by weighing.b) For the production of medicines in pharmacies as well as for analyses in the medical

and pharmaceutical laboratory.c) For official purpose.d) For manufacturing final packages.

In cases of doubt, please contact your local trade in standard.

Verification notes:

An EU type approval exists for balances described in their technical data as verifiable. If abalance is used where obligation to verify exists as described above, it must be verified andre-verified at regular intervals.Re-verification of a balance is carried out according to the respective national regulations.The validity for verification of balances in Germany is e.g. 2 years.The legal regulation of the country where the balance is used must be observed!After verification the balance is sealed at the indicated positions.Verification of the balance is invalid without the "seal".

Balances with obligation to verify must be taken out of operation if:

The weighing result of the balance is outside the error limit. Therefore, inregular intervals load balance with known test weight (ca. 1/3 of the max. load)and compare with displayed value.

The reverification deadline has been exceeded.

Position of the seal mark (models PLT)


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10 Basic Operation

10.1 Switch on off balance

Start-up:

In stand-by mode (see chap. 6.4) press ON/OFFbutton.As soon as the weight display appears, the balance is

ready for weighing.

Switching off:

Press ON/OFF. The balance changes into standbymode, that means that the balance is now in stateready-for-operation..

To switch-off the balance completely, separatebalance from power supply.

10.2 Zeroing

Unload the balance

Press the TARE key. The zero display and the indicator[-0-] will appear.


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10.3 Simple weighing

In order to obtain exact weighing results, your balance must have reached theoperating temperature (see warming up time chap. 1).

Wait for zero display, reset to zero using TARE.

Place goods to be weighed on balance.

Wait until the stability display appears []. Read weighing result.

When an optional printer is connected, the weighing value can be edited.

Printout examples (KERN YKB-01N):

27-08-11 10:41:17 Current date/time

Weight: 50.5773 g Measuring Value

10.4 Capacity display

The capacity display [] runs from below to above and proceedsaccording to the loaded weight on the balance. Its full height is reached atmaximum load.This is an analogue display of the current allocation of the weighing area.


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10.5 Weighing with tare

10.5.1 Determination of the tare weight by weighing

The dead weight of any weighing container may be tared away by pressing a button,

so that the following weighing procedures show the net weight of the goods to beweighed.

Put weighing container on the weighing pan.

Wait until stability display [] appears and then press the TARE-button;Tare is displayed.

After standstill control the zero display appears.The weight of the container is now internally saved.

Weigh the material.

Wait until the stability display appears [ ] . Read net weight.

Note:

When the balance is unloaded the saved taring value is displayed withnegative sign.

To delete the stored tare value, remove load from weighing pan andpress the TARE button. Tare is displayed, wait until the zero displayappears.

The taring process can be repeated any number of times. The limit isreached when the whole weighing range is exhausted.


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1

10.6 Underfloor weighing

Objects unsuitable for placing on the weighing scale due to size or shape may beweighed with the help of the flush-mounted platform.Proceed as follows:

Switch off the balance.

Open closing cover (1) at the balance bottom.

Suspend hook for underfloor weighing carefully and completely.

Place weighing balance over an opening.

Attach load to hook and carry out weighing procedure.

CAUTION

Always ensure that all suspended objects are stable enough tohold the desired goods to be weighed safely (danger of breaking).

Never suspend loads that exceed the stated maximum load (max)(danger of breaking)

Always ensure that there are no persons, animals or objects that

might be damaged underneath the load.

After completing the underfloor weighing the opening on thebottom of the balance must always be closed (dust protection).


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11 Setup menuIn the setup menu, the balance settings can be modified. This way, the balance canbe adjusted to individual weighing requirements.

Navigation in the menu:

Access to menu

2 sec.

In weighing mode press the MENU button and keep it presseduntil the acoustic signal gets mute.The setup menu is displayed.

How to select

menu items

Use the navigation buttons to select the individual menuitems one by one. The cursor () displays the current setting.

Change settings Acknowledge selected menu item using PRINT button, thecurrent setting is displayed. Each time the navigation buttons

are pressed the next setting will be displayed.

Save settings Take over selection using the PRINT button.Weighing balance returns to menu. Either make more settingsin the menu or go back to menu mode as follows.

Exit menu/

back toweighing mode

Press the MENU button and keep it pressed until the acousticsignal gets mute. The balance returns automatically intoweighing mode.


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Menu overview (all models excepted PLT-M)

Menu item Selection DescriptionWeight units(see chap. 11.1)

g Gram

ct Carat

Oz Ounce

Lb Pound

Dwt Pennyweights

Ozt Troy ounce

GN Grain

tl 1 Hongkong-Teal

tl 2 Singapur-Teal

tl 3 Taiwan-Teal

mo Momme

Serial output(see chap. 11.2)

Continuous Continuous output

On demandOutput of stable weighing values afterpressing PRINT button

Generic printer Not documentedPrinter Tlp Not documented

On demand - GlpGLP conformant printouts after pressing the

PRINT button

Generic print. - Glp Not documented

Printer Tlp - Glp Not documented

Baud rate(see chap. 11.3)

1200 Baud

Transfer speed2400 Baud

4800 Baud

9600 Baud

Auto zero

Automatic zero point correction(see chap. 11.4)

Auto zero OFF Auto Zero switched off

Auto zero 1 Auto Zero range Digit

Auto zero 2 Auto Zero range 3 Digits

Auto zero 3 Auto Zero range 7 Digits

Auto zero 3EAuto Zero range 7 digits in the wholeweighing range

Filter(see chap. 11.5)

Filter 1 Setting for dispensing

Filter 2Sensitive and fast, very quiet set-uplocation.

Filter 3 Robust but slow, busy set-up location.

Stability

(see chap. 11.6) Stability 1

Standstill control fast / very quiet set-up

location

Stability 2Standstill control fast + exact / quiet set-uplocation

Stability 3 Standstill control exact /very set-up location.


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Contrast adjustment(see chap. 11.7)

1-15 Setting the contrast of the display

Backlight (see chap. 11.8) on Background illumination on

off Background illumination off

Auto

Backlighting automatically switched off 3seconds after achieving stable weighingvalue. Changes in weight or pressing of keyswill automatically result in backlight switchingon again.

Timer OFFAutomatic switch-off function instand-by mode(see chap. 11.9)

Disable AUTO-OFF switched off

2 minutesAUTO-OFF after 2 minutes without changingthe weight

5 minutesAUTO-OFF after 5 minutes without changingthe weight

15 minutesAUTO-OFF after 15 minutes withoutchanging the weight

Time and date(see chap. 11.10

Setting date and time

Language

(see chap. 11.11)

English / Deutsch

Language operator guide

Franais

Espaol

Portugus

English

Italiano

Calibration mode(see chap. 11.12)

External calibration Adjustment with external weight

Auto calibrationAutomatic adjustment with internalweight

Internal calibration Adjustment with internal weightafter pressing CAL

Technical calib. Overwriting the internal adjustment weight

Calibration info(see chap. 11.13)

Record output of the lastadjustment

Return Back to weighing mode
http://dict.leo.org/frde?lp=frde&p=Ci4HO3kMAA&search=fran%C3%A7ais&trestr=0x401http://dict.leo.org/esde?lp=esde&p=Ci4HO3kMAA&search=espa%C3%B1ol&trestr=0x8004http://dict.leo.org/esde?lp=esde&p=Ci4HO3kMAA&search=espa%C3%B1ol&trestr=0x8004http://dict.leo.org/frde?lp=frde&p=Ci4HO3kMAA&search=fran%C3%A7ais&trestr=0x401


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Menu overview models PLT-M:

Menu item Selection DescriptionUnits(see chap. 11.1)

g Gramct Carat

RS 232(see chap.11.2)

Continuous Continuous output

PRINT buttonOutput of stable weighing values afterpressing PRINT key

Not documented -

Not documented -

PRINT button + GLPGLP conformant printouts after pressing thePRINT button

Not documented -

Not documented -Baud rate(see chap. 11.3)

1200 Baud

Transfer speed2400 Baud

4800 Baud

9600 Baud

Auto zeroAutomatic zero point correction(see chap. 11.4)

Auto zero OFF Auto Zero switched off

Auto zero 1 Auto Zero range Digit

Filter(see chap. 11.5)

Filter 1 Setting for dosage

Filter 2Sensitive and fast, very quiet set-uplocation.

Filter 3 Robust but slow, busy set-up location.

Stability(see chapter 9.6). Stability 1

Standstill control fast / very quiet set-uplocation

Stability 2Standstill control fast + exact / quiet set-uplocation

Stability 3Standstill control exact /very busy set-uplocation.


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Display contrast(see chap.11.7)

1-15 Select contrast

Background illumination of thedisplay (see chap. 11.8)

on Background illumination on

off Background illumination off

Auto

Background illumination automaticallyswitched off 3 seconds after achieving stableweighing value. Changes in weight orpressing of keys will automatically result inbackground illumination switching on again.

AUTO-OFFAutomatic switch-off function instand-by mode(see chap. 11.9)

Disabled AUTO-OFF switched off

2 minAUTO-OFF after 2 minutes without changingthe weight

5 minAUTO-OFF after 5 minutes without changingthe weight

15 minAUTO-OFF after 15 minutes without

changing the weightTime and date(see chap 11.10)

Setting date and time

Language

(see chap. 11.11)

Deutsch

Language operator guide

Franais

Espaol

Portugus

English

Italiano

Adjustment mode(see chap. 11.12) Autom. adjustm.

Automatic adjustment with internalweight

Adjustment log (see chap.

11.13)

Back to weighing mode

Back


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11.1 Weighing Units

According to the requirements the balance can be switched over into different units.Selected weighing unit will be retained even after disconnection from the mains.


Use the navigation buttons to select the menu item Weight units.

Acknowledge using PRINT button, the current setting is displayed.

Use the navigation buttons to select the desired setting.! In models PLT-M only gram and carat are available.

Symbol Weighing unit Conversionfactor 1g =

g Gram 1.

ct Carat 5.

Oz Ounce 0.035273962

Lb Pound 0.0022046226

Dwt Pennyweights 0.643014931

Ozt Troy ounce 0.032150747

GN Grain 15.43235835

tl 1 Hongkong-Teal 0.02671725

tl 2 Singapur-Teal 0.02646063

tl 3 Taiwan-Teal 0.02666666

mo Momme 0.2667




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11.2 RS232


Use the navigation buttons to select the menu item Serial output.


Use the navigation buttons to select the desired setting.

Display Description

Continuous Continuous data output

On demandOutput of stable weighing values after

pressing PRINT key

Generic printer Not documented

Printer Tlp Not documented

On demand - GlpGLP conformant printouts after pressingthe PRINT button

Generic print. - Glp Not documented

Printer Tlp - Glp Not documented




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11.3 Baud rate


Use the navigation buttons to select the menu item Baud rate.


Use the navigation buttons to select the desired setting.Selectable 1200, 2400, 4800, 9600 baud.




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11.4 Auto Zero

Under this menu item the automatic zero point correction can be switched on or off.In switched-on-state the zero point is automatically corrected at drift or when dirty.Note:

In the event that small quantities are removed or added to the material to beweighed, incorrect weighing results can be displayed due to the stabilitycompensation. (e.g. slow flow of liquids from a container placed on the balance,evaporating processes).When apportioning involves small variations of weight, it is advisable to switch offthis function.


Use the navigation buttons to select the menu item Auto Zero.


Use the navigation buttons to select the desired setting.! In models PLT-Monly Auto Zero Off and Auto Zero 1 are available.

Display Description

Auto Zero off Auto Zero switched off

Auto Zero 1 Auto Zero range Digit

Auto Zero 2 Auto Zero range 3 Digits

Auto Zero 3 Auto Zero range 7 Digits

Auto Zero 3E Auto Zero range 7 digits in the whole weighing range




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11.5 Filter

This menu item allows the balance to be set according to specific ambient conditionsand measuring purposes.


Use the navigation buttons to select the menu item Filter.


Use the navigation buttons to select the desired setting.Display Description

Filter 1 Setting for dispensing

Filter 2The balance reacts quickly and in a sensitive manner,quiet set-up location.

Filter 3The balance reacts slowly and in a robust manner,busy set-up location




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11.6 Stability


Use the navigation buttons to select the menu item Stability.



Stability 1 Standstill control fast - very quiet set-up location

Stability 2 Standstill control fast + exact quiet set-up location

Stability 3 Standstill control exact / set-up location.




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11.7 Setting the contrast of the display

To set the contrast of the display you can choose between 15 values.

In weighing mode press the MENU button and keep it pressed until the acoustic

signal gets mute. The setup menu is displayed.

Use the navigation buttons to select the menu item Contrast adjustment.



0 small contrast

15 high contrast




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11.8 Display background illumination


Use the navigation buttons to select the menu item Backlight.



Auto

Backlighting automatically switched off 3 seconds afterachieving stable weighing value. Changes in weight orpressing of keys will automatically result in backlightswitching on again

On Background illumination on

off Background illumination on




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11.9 Automatic switch-off function AUTO OFF


Use the navigation buttons to select the menu item Timer off.



Disabled AUTO-OFF switched off

2 minutesAUTO-OFF after 2 minutes without changing theweight



Take over selection using the PRINT button.

Weighing balance returns to menu. Either make more settings in the menu or goback to weighing mode as follows.



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11.10 Setting date and time


Use the navigation buttons to select the menu item Time and date.


Use navigation buttons to select the required format.DD-MM: day / monthMM-DD: month / day

Acknowledge the format with the PRINT button and set date and time as follows.

The active digit e.g. 25 is shown underlined.Use the navigation buttons to set the day and confirm using the PRINT button.

The active digit wanders to the month, (is shown underlined). Use the navigationbuttons to set the month and confirm using the PRINT button.

Set year, hours, minutes and seconds in the same way.

After finishing the input, press the PRINT button and keep it pressed until theacoustic signal gets mute.Weighing balance returns to menu. Either make more settings in the menu or goback to weighing mode as follows.

Press the MENU button and keep it pressed until the acoustic signal gets mute.The balance returns automatically into weighing mode.The set date and time are displayed.


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11.11 Language operator guide


Use the navigation buttons to select the menu item Language.


Use the navigation buttons to select the desired setting.Language

Deutsch

Franais

Espaol

Portugus

English

Italiano




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11.12 Adjustment mode


Use the navigation buttons to select the menu item Calibration mode.


Use the navigation buttons to select the desired setting.! In models PLT-M only automatic adjustment is available.

Display Description Procedure see chap.

Internaladjustm.

Adjustment with internalweight after pressing theCAL button

+ Chap. 7.1

Externaladjustm.

Adjustment with externaladjustment weight

+ Chap. 7.3

Technicaladjustm.

Overwrite internaladjustment weight

+ Chap. 7.4

Autom. adjustm.Automatic adjustment withinternal adjustment weight

+ Chap. 7.2

+ or 8.1 (PLT-M)




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11.13 Adjustment log

This function helps to print out a record of the last adjustment.

Make sure that the communication parameter of balance and printer are the

same.Communication parameters, see chap. 9.2 and 11.3


Use the navigation buttons to select the menu item Calibration info.

Confirm with PRINT button; date, time, adjustment type and deviation of the lastadjustment are displayed.

If you connect an optional printer you can also print these data by pressing thePRINT key.

Printout example (KERN YKB-01N):


Calibration:

27-08-11 10:11:17 Date/time of the lastadjustment

Internal calib. Type of adjustment

Corr. : 0.21 g Deviation from last adjustment

Press the ON/OFF key. Weighing balance returns to menu. Either make moreadjustments in the menu if required or press ON/OFF button anew; the balancewill return into weighing mode.


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12 Main Menu

Navigation in the menu:

Access to menu In weighing mode press MENU button. The master menu will bedisplayed.

How to select

menu itemsUse the navigation buttons to select the individual menuitems one by one. The cursor () displays the current setting.

Change settings Acknowledge selected menu item using PRINT button, thecurrent setting is displayed. Each time the navigation buttonsare pressed the next setting will be displayed.

Save settings Take over selection using the PRINT button.Weighing balance returns to menu. Either make more settingsin the menu or go back to menu mode as follows.

Exit menu/

back toweighing mode

Press the ON/OFF key.


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12.1 Parts counting

Before the balance can count parts, it must know the average part weight (i.e.reference). Proceed by putting on a certain number of the parts to be counted. Thebalance determines the total weight and divides it by the number of parts, the so-

called reference quantity. Counting is then carried out on the basis of the calculatedaverage piece weight.As a rule:The higher the reference quantity the higher the counting exactness.

12.1.1 Determine reference by weighing

In weighing mode press MENU button. The master menu will be displayed.

Use the navigation buttons to select the menu item Piece counting.

Acknowledge using PRINT button, the currently set reference quantity isdisplayed.


10 off Reference piece number 10




Manual Numerical input of reference weight, see chap. 12.1.2


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If necessary place a weighing container, confirm the set reference piece numberby pressing the PRINT button.

Place as many pieces to add-up as required by the set reference piece number.

Acknowledge using PRINT button and wait for stability display.

As soon as the weighing result is stable, the determined average piece weight willbe taken over as reference weight.

The currently placed weight W, the reference weight MPW and the piece numberPCS are displayed.

Remove reference weight. The balance is now in parts counting mode countingall units on the weighing pan.


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If it was impossible to determine a reference due to instable goods to beweighed or an insufficient reference weight, the following display willappear during reference calculation.

Smallest counting weight not achieved

Increase the counted weight or select a balance with high resolution

or

If in the display Add pieces.. appears, the balance asks for areference optimisation, as the placed number of pieces was not sufficientfor a correct reference calculation.

Place more parts, but at least the double quantity.Press the PRINT button, the reference is calculated anew.

The placed quantity is always toosmall, add more parts (double

quantity) and acknowledge usingthe PRINT button. Repeat theprocedure until the piece counterdisplay appears.

Placed quantity sufficient forreference determination.

Remove reference weight. Thebalance is now in parts countingmode counting all units on theweighing pan.


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Carry out parts counting

After having calculated the reference, place the pieces which will be counted.The currently placed weight G, the reference weight AUW and the calculatedpiece number St. are displayed.

The display value can be printed out by connecting an optional printer.



PCS 20 Calculated piece number

Weight: 199,9985 g Weight placed on balance

MPW: 10 000 g Reference weight

Return to weighing mode

Press the ON/OFF key


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12.1.2 Numeric entry of the reference weight

If the piece weight (reference) is known, it can be entered directly. As the balance inthis method needs not to calculate any reference, the balance after confirming thereference piece weight will be directly in parts counting mode.

In weighing mode press MENU button. The master menu will be displayed. Use the navigation buttons to select the menu item Piece counting.

Acknowledge using PRINT button, the currently set reference quantity isdisplayed.

Use the MENUbutton to select the Manual setting.

Confirm by pressing the PRINT button.

Use the navigation buttons (see chap. 2.2.1) to enter the known reference pieceweight in grams. To set a decimal point press the CAL button long time. Theinput is deleted by pressing the TARE button a longer time.


From here on the balance is in parts counting mode and counts all pieces which areplaced on the weighing pan (see chap.10.1.1 Carry our parts counting).

If the minimum parts weight is not reached, an error message will appear. Use theON/OFF button to return to the weighing mode and restart the procedure.

Return to weighing mode

Press the ON/OFF key


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12.1.3 Automatic reference optimization

In order to improve the counting exactness, the reference can be optimised byadding more pieces. At every reference optimisation, the reference weight iscalculated anew. As the additional pieces increase the base for the calculation, the

reference also becomes more exact. Leave the piece number on the weighing pan after setting the reference weight

Duplicate the number of pieces on the weighing pan and wait until the acousticsignal sounds. The reference weight is calculated anew.

Either repeat the reference optimisation by adding more pieces (max. 255pieces) or start the counting process.

The automatic reference optimisation is not active when the referenceweight is entered numerically.


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12.2 Density determination (Hydrostatic weighing)

Density is the relationship of weight [g] : volume [cm3]. The weight is determined by

weighing the sample in air. The volume results from the ascending force [g] of thesample dipped in a liquid. The density [g/cm

3] of that liquid is known (principle of

Archimedes).The density is determined with help of the underfloor weighing device.We recommend to switch off the automatic adjustment in the setup menu,see chap. 11.12.

12.2.1 Density determination of solids

Prepare the balance as follows:

Switch off the balance

Remove the weighing pan and carefully turn over the weighing balance.

Suspend hook for underfloor weighing (optional)

Place weighing balance over an openingPrepare suspension device

Fill measuring liquid e.g. water in a vessel e.g. beaker and temper it.

Calculate density:


Use the navigation buttons to select the menu item Density.


Use the navigation buttons to select setting Solid body.

Confirm using the PRINT button, the set density of the measuring liquid isdisplayed (factory setting 1.0000 for dest. water at 20C).

Use the navigation buttons (see chap. 2.2.1) to enter the current density of themeasuring liquid. For water see the following density table.

Confirm with PRINT button, the display for calculation of Weight in air isdisplayed.


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Suspend sample with suspension device at the flush-mounted hook. Wait forstability display, take over the weight value using PRINT button. The display fordetermination of the "sample in water appears.

Immerse the sample without bubbles developing.Make sure that the sample does not touch the beaker.

Wait for stability display, take over the weight value using PRINT button.The density of the sample is shown.


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When an optional printer is connected, the displayed value can be edited usingPRINT.


07-09-11 11:14:57d: 8.0700 g/cm

If at the density determination errors have appeared, d----- is displayed.

1. Back to density determination mode, press MENU button.

2. Back to weighing mode, press ON/OFF button.


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Density table of water:

* the asterisk means that the cipher left from the comma is reduced by 1.

Table from "Mass determination" by M. Kochsiek, M. Glser


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Suspend sinker with suspension device at the flush-mounted hook. Wait forstability display, take over the weight value using PRINT button. The display forweight determination of the "Sinker in sample liquid appears.

Immerse the sample without bubbles developing.Make sure that the sample does not touch the beaker.

Wait for stability display, take over the weight value using PRINT button. Thedensity of the sample is shown.


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If at the density determination errors have appeared, d----- is displayed.

When an optional printer is connected, the displayed value can be edited usingPRINT.


07-09-11 11:14:57d : 0.9984 g/cm

1. Back to density determination mode, press MENU button.

2. Back to weighing mode, press ON/OFF button.


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Weighing the second component (e.g. 5 g).

Confirm by pressing the PRINT button. The weight is added to the summationmemory and printed if an optional printer is connected.

If required, weigh more components (max. 99) as described above.

Complete Formulation process

Press the PRINT button and keep it pressed until the acoustic signal gets mute.The total weight (TOT:) of all components will be displayed and edited on theprinter.


07-09-11 11:14:57 Date/time

Manual Recipe mode

1. 15.00 g Weighing 1. component


T = 20.00 g Total weight

Back to formula mode, press the ON/OFF button and start the next Formulation.

Back to weighing mode, press ON/OFF button repeatedly.


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12.3.2 Formulation using the recipe data base

12.3.2.1 Store recipes

The balance contains a recipe data base, where maximally 99 recipes each with 20

components can be filed.

Select formula mode


Use the navigation buttons to select the menu item Formula.


Define recipe and components

1. Use the navigation buttons to select thememory space number (e.g. 01) for therecipe. Press the PRINT button and keep it pressed until the acoustic signal getsmute. The display for entering the recipe name appears.

2. Use the navigation buttons (see chap. 2.2.1 ) to enter the recipe name (max. 20characters).


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3. Confirm by pressing the PRINT button. The display for entering the firstcomponent name appears.

4. Use the navigation buttons (see chap. 2.2.1) to enter the component name(max. 11 characters).

5. Confirm by pressing the PRINT button. The display to enter the quantity appears.

6. Use the navigation buttons (see chap. 2.2.1) to enter quantity.


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7. Confirm by pressing the PRINT button. The input of the minus-tolerance isdisplayed.

8. Enter the negative tolerance value: ex.: -10 %

9. Confirm by pressing the PRINT button. The input of the plus-tolerance is

displayed.

10. Enter the positive tolerance value: ex.: 5 %

11. Confirm by pressing the PRINT button

12. To enter more components (max. 20) repeat step 3 11 respectively.

13. Once having entered all components, use the ON/OFF button to exit the formulaentry mode.

Back to weighing mode, press ON/OFF button anew.


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12.3.2.2 Invoke and work off the recipes

After invoking a stored recipe (see chap. 12.3.2.1) the balance will be ready at oncefor weighing the components. Name and nominal value, tolerance and multiplicationfactor of the respective component are displayed.


Use the navigation buttons to select the menu item Formula.


or (Example)

Receipt 00, or the most recently entered recipe will appear

Use navigation buttons to select the required recipe.

Acknowledge using PRINT button, the first component and its nominal value aswell as the negative and the positive tolerance value are displayed. Using thenavigation buttons , all components including their nominal value and tolerancevalues can be displayed.

Select component and confirm by the PRINT button, the entry of the multiplicationfactor will be displayed


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Use the navigation buttons to enter the required multiplication factor.1 = simple receipt quantity

2 = double receipt quantity

3 = triple receipt quantityetc.

Use the PRINT button to confirm the selected factor:

Example for factor 1

1 Tolerance value

2 Total weight of all components

3 Nominal value of the component

4 Total weight of all components

5 Displaying tolerance

Overview tolerance display:

Ex.: tolerance -10.0 % to +5.0 %

Weighed good below nominal value

Weighed good = nominal value

Weighed good above nominal value

Ex.: without tolerance entry:

Weighed good below nominal value

Weighed good = nominal value

Weighed good above nominal value


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The display for weighing the first component appears.

Tare when using a weighing container. Start weighing. When the nominal value isreached, right next to the capacity display OK will appear.

If the nominal value is not reached (-) or exceeded (+), Err 10 will appear on thedisplay after pressing the PRINT button. Correct the poured quantity.

If the nominal weight is reached, press PRINT button. Wait appears shortlyfollowed by Tare.Then the display passes to W=0 and the display for weighingthe second component appears.

Weigh-in the displayed nominal value of the second component.


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After weighing and confirming the last component, the total weight (TOT:) of allcomponents will be displayed and printed automatically.


07-09-11 11:14:57Cake Name receipt


Salt Name 1. component2. 70.00 g Weighing 2. component

Sugar Name 2. component


ABC Name 3. component

T = 80.50 g Total weight

Back to formula mode, press the ON/OFF button and start the next recipe.



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Example for factor 2: Call-up the required recipe as specified above

Acknowledge using PRINT button, the first component and its nominal value aswell as the negative and the positive tolerance value are displayed. Using thenavigation buttons , all components including their nominal value and tolerancevalues can be displayed.

Select component and confirm by the PRINT button, the entry of themultiplication factor will be displayed

Use the navigation buttons to enter the multiplication factor 2.

Use the PRINT-button to confirm the selected factor:

Now the double quantity (20.000 g) appears as nominal value.

Start weighing. When the nominal value is reached, right next to the capacitydisplay OK will appear.


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If the nominal weight is reached, press PRINT button. Wait appears shortlyfollowed by Tare.Then the display passes to W=0 and the display for weighingthe second component appears.

Now the nominal value is 40000 g. Start weighing. When the nominal valueis reached, right next to the capacity display OK will appear.

After weighing and confirming the last component, the total weight (TOT:) of allcomponents will be displayed and printed automatically.


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Back to formula mode, press the ON/OFF button and start the next recipe.



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12.4 Check weighing

In checkweighing an upper and a lower limit value can be established to ensure thatthe weighed goods are exactly within the established tolerance limits.The tolerance mark () and an acoustic signal (selectable) show, if the weighed

material is within the two tolerance limits.

Display of the results

1. Lower and upper limit value 0

Tolerancemarker

Tone Assessment

no Load exceeds specified tolerance

yes Load within specified tolerance

no Load below specified tolerance

2. Lower limit value > 0 and upper limit value = 0

Tolerance

marker Tone Assessment

yes Weighed goods > lower limit value

no Weighed goods lower limit value

3. Lower limit value = 0 and upper limit value > 0

Tolerance

markerTone Assessment

no Weighed goods > upper limit value

yes Weighed goods upper limit value


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Settings


Use the navigation buttons to select the menu item Checkweighing.

Press PRINT button to confirm, the display for entering the lower limit value willappear.

Use the navigation buttons (see chap.2.2.1) to enter the lower limit value, e.g.9.00 g.

Press PRINT button to confirm, the display for entering the upper limit value willappear.

Use the navigation buttons (see chap.2.2.1) to enter the upper limit value, e.g.11.00 g.

Confirm using the PRINT button, the display to adjust the signal tone appears.

Use the MENU-button to select the desired settingOn: Acoustic signal switched onOff: Signal tone switched off

Confirm by pressing the PRINT button.From now the balance is in checkweighing mode.


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12.5 Percent determination

Percent determination allows weight display in percent, in relation to a referenceweight.

12.5.1 Entering the reference weight by weighing In weighing mode press MENU button. The master menu will be displayed.

Use the navigation buttons to select the menu item Percent weigh..

Confirm with the PRINT button, the currently set mode will be displayed.

Use the navigation buttons to select setting Automatic.

If using a weighing container, put this before pressing the PRINT button. Thetaring process is automatically started.

Press the PRINT key.

Place the reference weight (=100 %) and press the PRINT button. As soon theweighing value is stable, the determined weight will be taken over as reference(100%). From now the balance is in percent determining mode.

Place weighed goods, the result display will appear.

W% Weight of the sample in percentage

W Weight of the sample in grams

REF: Reference weight (100%)

When an optional printer is connected, the displayed value can be editedusing PRINT. Printout example (KERN YKB-01N):

07-09-11 11:14:57Perc. 49.95 % Weight of the sample in

percentage

Weight: 9.990 g Weight of the sample in grams

Refer.: 20.000 g Reference weight (100%)


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12.5.2 Numeric entering of the reference weight


Use the navigation buttons to select the menu item Percent determin..

Confirm with the PRINT button, the currently set drying mode will be displayed.

Use the navigation buttons to select setting Manual.


Use the navigation buttons (see chap. 2.2.1) to enter the reference weight(100 %) in grams.

Confirm input by pressing the PRINT button.From now the balance is in percent determining mode.

Place weighed goods, the result display will appear.

W% Weight of the sample in percentage

W Weight of the sample in grams

REF: Reference weight (100%)

When an optional printer is connected, the displayed value can be edited using

PRINT. Printout example (KERN YKB-01N):

07-09-11 11:14:57Perc. 49.95 % Weight of the sample in

percentage

Weight: 9.990 g Weight of the sample in grams

Refer.: 20.000 g Reference weight (100%)

Return to weighing mode Press the ON/OFF key


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12.7 Peak value function

This function displays the highest load value (peak value) of a weighing.The peak value remains in the display until it will be deleted.


Use the navigation buttons to select menu item Maximum load.

Confirm using PRINT button, the taring process is automatically started. Tarewill be shortly displayed. From now on the balance is in peak value mode.

Load weighing pan. The maximum load value is displayed.

The peak value remains in the display until the TARE button is pressed. Then thebalance is ready for further measurements.

When an optional printer is connected, the displayed value can be edited using

PRINT. Printout example (KERN YKB-01N):

07-09-11 11:14:57Max.: 20.0356 g Peak value

Return to weighing mode:

Press the ON/OFF key.


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12.8 GLP function (Good laboratory practice)

In the GLP settings, information is defined, which will be edited in the measurementrecords.


Use the navigation buttons to select the menu item GLP..

Confirm by pressing the PRINT button. The display to enter the balanceidentification number appears.

Use the navigation buttons (see chap. 2.2.1) to enter the balance ID (max. 18characters).

Confirm by pressing the PRINT button. The display for entering the user IDappears.

Use the navigation buttons (see chap. 2.2.1) to enter the user ID (max. 18characters).

Confirm by pressing the PRINT button. The display for entering the project IDappears.

Use the navigation buttons (see chap. 2.2.1) to enter the project ID (max. 18characters).

To save all the information press the PRINT button and keep it pressed until theacoustic signal gets mute. The balance returns automatically into weighing mode.


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For GLP conformant printouts activate the menu setting PRINTbutton_GLP, see chap.11.2


07-09-11 11:14:57

G.L.P. Parameter

Balance ID:

TEST 1

User ID:

Miller

Project ID:

789

Weight: 199.991 gWeighing data

Signature:G.L.P. Parameter


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RS232C

13 Data output RS 232C

The following conditions must be met to provide successful communication betweenthe weighing balance and the printer.

Use a suitable cable to connect the weighing balance to the interface of the

printer/PC.Faultless operation requires an adequate KERN interface cable (optional).

The baud rates of balance and printer must match (see chap.11.3).

In the setup menu (see chap.11.2) activate the desired data output, you canselect- Continuous data output- Output of stable weighing values after pressing the PRINT button- GLP conformant printouts after pressing the PRINT button

13.1 Technical data

8-bit ASCII Code 8 data bits, 1 stop bit, no parity bit Baud rate optional from 1200 - 9600Baud

13.2 Pin allocation of balance output plug

Pin 1 Power +5VPin 2 Tx SignalPin 3 Rx SignalPin 4 b

Documents

Alt b Plt a Plt f Ba e 1231