It’s a good idea to record the model and serial number(s) of...It’s a good idea to record the model and serial number(s) of your equipment and the date you received it in the User

JRAPP

New Stamp

It’s a good idea to record the model and serial number(s) ofyour equipment and the date you received it in the UserGuide. Our service department uses this information, alongwith the manual number, to provide help for the specificequipment you installed.

Please keep this User Guide and all manuals, engineeringprints and parts lists together for documentation of yourequipment.

Date:

Manual Number: UGD010/0696

Serial number(s):

Model number(s):

The Conair equipment described in this publication is covered by:U.S. Patent No. 5,487,225.

DISCLAIMER: The Conair Group, Inc. shall not be liable for errorscontained in this User Guide or for incidental, consequential dam-ages in connection with the furnishing, performance or use of thisinformation. Conair makes no warranty of any kind with regard tothis information, including, but not limited to the implied warrantiesof merchantability and fitness for a particular purpose.

Please record yourequipment’s model and

serial number(s) andthe date you received itin the spaces provided.

Copyright 1996 All rights reservedTHE CONAIR GROUP, INC.

UGD010/0696 DM-1 Drying Monitor i

TABLE OFCONTENTS

INTRODUCTION . . . . . . . . . . . . . . . . . . .1-1Purpose of the User Guide . . . . . . . . . . . . . . . . . . . . . . . . .1-2How the guide is organized . . . . . . . . . . . . . . . . . . . . . . . .1-2Your responsibilities as a user . . . . . . . . . . . . . . . . . . . . . .1-2ATTENTION: Read this so no one gets hurt . . . . . . . . . . .1-3

DESCRIPTION . . . . . . . . . . . . . . . . . . . .2-1What is the DM-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2How it works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3Specifications: DM-1 control . . . . . . . . . . . . . . . . . . . . . . .2-4Specifications: DM-1 probe . . . . . . . . . . . . . . . . . . . . . . . .2-5Specifications: DM-1 options . . . . . . . . . . . . . . . . . . . . . . .2-5

INSTALLATION . . . . . . . . . . . . . . . . . . . .3-1Unpacking the boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2Preparing for installation . . . . . . . . . . . . . . . . . . . . . . . . . .3-3Installing the DM-1 probe . . . . . . . . . . . . . . . . . . . . . . . . .3-4Probe mounting method 1 . . . . . . . . . . . . . . . . . . . . . . . . .3-4Probe mounting method 2 . . . . . . . . . . . . . . . . . . . . . . . . .3-5Probe mounting method 3 . . . . . . . . . . . . . . . . . . . . . . . . .3-6DM-1 control: hopper mount . . . . . . . . . . . . . . . . . . . . . . .3-8DM-1 control: surface mount . . . . . . . . . . . . . . . . . . . . . . .3-9Connecting the probe to the control . . . . . . . . . . . . . . . . .3-10Connecting power and device cables . . . . . . . . . . . . . . . .3-10Testing the installation . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11Initial setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12

OPERATION . . . . . . . . . . . . . . . . . . . . . .4-1DM-1 control features . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2The three operating modes (PREDRY, RUN, ALARM) . . . . . .4-3Starting the DM-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4Using the security feature . . . . . . . . . . . . . . . . . . . . . . . . .4-4Returning to Setup mode . . . . . . . . . . . . . . . . . . . . . . . . . .4-5Stopping the DM-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

MAINTENANCE . . . . . . . . . . . . . . . . . . . .5-1DM-1 maintenance checklist . . . . . . . . . . . . . . . . . . . . . . .5-2

TROUBLESHOOTING . . . . . . . . . . . . . . . .6-1Before beginning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2A few words of caution . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

ii DM-1 Drying Monitor UGD010/0696

TABLE OFCONTENTS

TROUBLESHOOTING................................. 6–1DIAGNOSTICSWhen an alarm occurs ...........................................................6-3

Drying system alarms ..........................................................6-4Over Temp. Top ...............................................................6-4Over Temp. Bottom .........................................................6-4Temp. Low .......................................................................6-5Power Off.........................................................................6-5Low Drying Time ............................................................6-6High Drying Time............................................................6-7Hopper Too Small ............................................................6-7Dewpoint..........................................................................6-7

DM-1 system alarms ............................................................6-8Probe Error.......................................................................6-8Sensor Failed....................................................................6-8Fatal Error ........................................................................6-8Memory Error ..................................................................6-9

APPENDIXService/Warranty information ...............................Appendix AProbe mounting templates.....................................Appendix BPrinter setup information.......................................Appendix C

If you purchased a DM-1 Drying Monitor option,instructions can be found in the appendix or ina separate enclosed User Guide.

Option: Alarm/Shutdown Adapter ........................Appendix DOption: DM-1 arm extensions...............................Appendix E

PARTS/DIAGRAMSThis section has been provided for you tostore spare parts lists and diagrams.

1-1

● Purpose of the User Guide . . . .1-2● How the guide is organized . . . .1-2● Your responsibilities as a user .1-2● ATTENTION: Read this so

no one gets hurt . . . . . . . . . . . . .1-3

INTRODUCTION

UGD010/0696 DM-1 Drying Monitor

1-2 INTRODUCTIONDM-1 Drying Monitor UGD010/0696

This User Guide describes the DM-1 Drying Monitor andexplains step-by-step how to install, operate, maintain andrepair this equipment.

Before installing this product, please take a few moments toread the User Guide and review the diagrams and safety infor-mation in the instruction packet. You also should review man-uals covering associated equipment in your system. Thisreview won’t take long, and it could save you valuable instal-lation and operating time later.

Symbols have been used to help organize the User Guide andcall your attention to important information regarding safeinstallation and operation.

Symbols within triangles warn of conditions that couldbe hazardous to users or could damage equipment.Read and take precautions before proceeding.

Numbers within shaded squares indicate tasks or stepsto be performed by the user.

A diamond indicates the equipment’s response to anaction performed by the user.

An open box marks items in a checklist.

A shaded circle marks items in a list.

You must be familiar with all safety procedures concerninginstallation, operation and maintenance of this equipment.Responsible safety procedures include:

● Thorough review of this User Guide, paying particularattention to hazard warnings, appendices and related dia-grams.

● Thorough review of the equipment itself, with carefulattention to voltage sources, intended use and warninglabels.

● Thorough review of instruction manuals for associatedequipment.

● Step-by-step adherence to instructions outlined in thisUser Guide.

PURPOSE OFTHE USERGUIDE

HOW THEGUIDE ISORGANIZED

1◆

❒

●

!

YOURRESPONSIBILITYAS A USER

INTRODUCTION 1-3UGD010/0696 DM-1 Drying Monitor

We design equipment with the user’s safety in mind. You canavoid the potential hazards identified on this machine by fol-lowing the procedures outlined below and elsewhere in theUser Guide.

WARNING: Hot surfaces.

Always shut down the dryer and wait forthe DM-1 probe and hopper to coolbefore servicing. Temperatures inside adrying hopper can reach more than 400˚ F (204˚C).

WARNING: Disconnect and lock outmain power before servicing.

Always disconnect and lock out the mainpower source to the DM-1 before servic-ing. Also disconnect and lock out themain power to the dryer before servicingthe DM-1 probe.

!

ATTENTION:READ THIS SONO ONE GETSHURT

!

2-1

● What is the DM-1? . . . . . . . . . . .2-1● Typical applications . . . . . . . . .2-2● How it works . . . . . . . . . . . . . . .2-3● Specifications: DM-1 control . .2-4● Specifications: DM-1 probe . . .2-5● Specifications: DM-1 options . .2-5

DESCRIPTION


The DM-1 Drying Monitor alerts you to improper drying con-ditions that can lead to defects in products manufactured fromhygroscopic material.

The DM-1 monitors the four key drying conditions:● Drying temperature.● Air flow.● Drying time at the recommended temperature.● Dew point (with an optional dew point monitor).

When these drying conditions are met, the DM-1 provides agreen light alerting the operator to begin processing material.If one or more of the conditions are not met, the DM-1 pro-vides an alarm and a red light alerting the operator to stopprocessing.

The DM-1 is ideal for applications that require strict controlof the drying process to meet product quality specifications.The monitor also can output drying performance informationto a printer or SPI device.

The DM-1 will alert the operator to these common dryingproblems:

● Improperly sized hoppers or dryers.● Drying or loading equipment failures.● Reduced air flow caused by dirty filters, kinked hoses

or other obstructions.● Loss of power.● Overheated or overdried material.

2-2 DESCRIPTIONDM-1 Drying Monitor UGD010/0696

WHAT ISTHE DM-1?

TYPICALAPPLICATIONS ��@@@@@��ÀÀÀÀÀ��@@@@@��ÀÀÀÀÀ��

The DM-1 Drying Monitorcan be mounted at thebase of the drying hop-per or on a surface, suchas a wall or shelf.

The DM-1 monitors temperatures inside the hopper with aprobe containing a series of sensors. The DM-1 control usesthese temperature readings, its internal time clock, and infor-mation you input about the resin, hopper size and throughputto calculate when drying conditions have been met.

DESCRIPTION 2-3UGD010/0696 DM-1 Drying Monitor

HOW ITWORKS

1 PREDRY ModeWhen T1 senses thesetpoint drying temper-ature entered by theoperator, the DM-1control begins countingthe amount of time thematerial has dried atthis temperature.

2 RUN ModeThe DM-1 displays a green light as soonas a sufficient amount of material hasdried at the required time and temperatureto satisfy your throughput.

In RUN mode the timer displays thelength of time material will be exposed tothe drying temperature before leaving thehopper.

At a throughput of 100lbs/hour, the materialat this level will havebeen exposed to thedrying temperature for3 1/2 hours when itleaves the hopper.

3 ALARM ModeThe DM-1 control displays a redalarm light whenever tempera-ture measurements in the hopperindicate the required drying timeand temperature cannot be met.

In this example, dirty filtersrestricted air flow. This preventsmaterial in the upper part of thehopper from being exposed tothe drying temperature for therequired length of time.

At a throughput of100 lbs/hour, thematerial at this levelwill have beenexposed to the dryingtemperature less than3 1/2 hours when itleaves the hopper.

lbs

lbs

2-4 DESCRIPTIONDM-1 Drying Monitor UGD010/0696

SPECIFICATIONS: DM-1 CONTROL

A

D

E

F

Control

Mounting arm

B

C

5 inches(12.7 cm)

7 inches(17.8 cm)

5 inches(12.7 cm)

4 inches(10.2 cm)

2 inches(5.1 cm)

3 inches(7.6 cm)

3/16 inches(7.6 cm)diameter

Wall bracket forthe mounting arm

Hopper base bracketsfor the mounting arm

(available in two sizes to fit5x5 inch and 7x7 inch bolt

hole patterns)

DimensionsDM-1 control inches cm

A 10.125 25.7B 13.5 34.3C 6.5 16.5D 5.5 14

with mounting arm inches cmE 9.5 24.1F 18 45.7

Weight lbs kgControl 7.4 3.4Control + arm 10.6 4.8

Power Requirements110-240 VAC 50/60 hz 1.5 amp

Input / Output Ports and CablesConnector Cable

Device Type LengthsProbe cable 15-pin female 20, 40, 100 ft

(6.1, 12.2, 30.5 m)*Printer cable RS232 serial 10, 50 ft. (3, 15.2 m)*SPI cable RS485 serial 10 ft. (3 m)*Alarm/Shut down

adapter cable circular 15 ft. (4.6 m)*Alarm beacon circular 10 ft. (3 m)*Dew point monitor circular 10 ft. (3 m)

* These cables or devices are available as options.

Data OutputThis information can be output to a printer or SPI device.

UnitsActual time 24-hour clockMaterial drying time 24-hour clockMaterial drying temperature F˚ or C˚Drying status Predry/Run/Alarm

Output includes the date, hopper size, throughput, setpoint temperature andmaterial bulk density entered by the operator.

DESCRIPTION 2-5UGD010/0696 DM-1 Drying Monitor

SPECIFICATIONS: DM-1 PROBE

Standard modelsLength A

Model No. inches cm303 15 38.1604 30 76.2605 34 86.4606 38 96.5607 42 106.7608 48 121.9609 54 137.2610 60 152.4611 66 167.6612 74 188.0613 80 203.2614 86 218.4615 92 233.7616 98 248.9617 104 264.2618 110 279.4620 122 309.9622 134 340.4624 142 360.7626 152 386.1628 162 411.5630 172 436.9632 182 462.3634 192 487.7636 202 513.1638 212 538.5640 222 563.9642 232 589.3644 240 609.6646 240 609.6

Angled models603B 23 58.4604B 27 68.6605B 34 86.4606B 38 96.5607B 45 114.3609B 56 142.2

A

SPECIFICATIONS: DM-1 OPTIONS

Angled probe Allows the DM-1 to be used onhoppers that have insufficientclearance for correctly mountingthe probe around loading devices

Probe mountingadapter kit

(includes half coupling,two mounting plates,screws and gasket)

Dew Point MonitorDimensions (H x W x D) 4.7 x 6.3 x 3.5 inches (11.9 x 16 x 8.9 cm)Dew point range -85˚F to +68˚F (-65˚C to +20˚C)Accuracy ± 5˚F (± 3˚C)Remote Alarm Output Two programmable alarms, rated

10A @ 240VPower Requirements 110/240 VAC 50/60 hz

Alarm BeaconDimensions (H x W x D) 7.5 x 5 x 2.6 inches (19.1 x 12.7 x 6.7 cm)Outputs Red light during ALARM mode;

Green light during RUN modePower Requirements Powered by DM-1

-40.3

Alarm / Shut down adapterThis cable and terminal strip allows the DM-1alarm output:● To be used with any remote alarm device.● To automatically shut down the processing

machine or dryer when the DM-1 entersALARM mode.

3-1UGD010/0696 DM-1 Drying Monitor

● Unpacking the boxes . . . . . . . . .3-2● Preparing for installation . . . . . .3-3● Installing the DM-1 probe . . . . .3-4● Probe mounting method 1 . . . . .3-4● Probe mounting method 2 . . . . .3-5● Probe mounting method 3 . . . . .3-6● DM-1 control: hopper mount . . .3-8● DM-1 control: surface mount . . .3-9● Connecting the probe

to the control . . . . . . . . . . . . .3-10● Connecting power and

device cables . . . . . . . . . . . . . .3-10● Testing the installation . . . . . . .3-11● Initial setup . . . . . . . . . . . . . . .3-12

INSTALLATION

The DM-1 Drying Monitor comes in two or more boxes,depending on the options ordered. The boxes should include:

Carefully remove the DM-1 control, probe and com-ponents from their shipping containers.

Remove all packing material, protective paper, tapeand plastic. Do not discard installation notice tags. If youbought more than one DM-1, check each control for a tagindicating which drying hopper it was factory-configuredto monitor.

Carefully inspect all components to make sure nodamage occurred during shipping, and that you have allthe necessary hardware.

Take a moment to record serial numbers in theblanks provided on the back of the User Guide’s title page.Also record the drying hopper’s model number and speci-fications. The information will be helpful if you ever needservice or parts.

You are now ready to begin installation.Complete the preparation steps on the next page, then goto the instructions for the mounting options you selected.

3-2 INSTALLATIONDM-1 Drying Monitor UGD010/0696

UNPACKINGTHE BOXES

1

2

3

4

5

Mounting HardwareProbe:❒ four 1/2-inch long, 10-32 UNFscrews to attach the mountingcoupling to the hopper or adapterplates.❒ three 3/4-inch long, 10-32 UNFscrews to attach the mountingadapter plates to the hopper.Control:❒ four 1/2-inch long 1/4-20 screwsto attach the swivel bracket to thecontrol.❒ one 2 3/4 inch long 1/4-20 car-riage bolt to attach the swivelbracket to a surface or the mount-ing arm.❒ four 1/2-inch long 1/4-20 self-locking bolts to attach the mount-ing arm to the hopper bracket orsurface bracket.

Optional hardware:See the appendix for installationnotes for optional equipment.

DM-1Control

Power cordProbe cable

DM-1Probe

Measuringbottle for calculatingbulk density

Controlmount

Arm with hoppermounting bracket

Surface mountingbracket

Compressionfitting

Adapter platesand gasket

Coupling

The DM-1 Drying Monitor is easy to install, if you plan thelocation and prepare the mounting area properly.

Select a mounting location that provides:❒ Clearance for safe operation and maintenance.The DM-1 control should be mounted so that its displaypanel can be seen and touched easily by an operator. TheDM-1 probe must be mounted in a location that provideseasy access for installing or removing the probe throughthe top of the drying hopper or the hopper door. See theSpecifications table for probe dimensions.

❒ Room temperatures of not more than 158˚ F (70˚ C).Excessive heat can affect the DM-1 control’s performance.

❒ A source of single-phase, grounded electrical power.A grounded outlet should be installed to within 8 feet ofthe DM-1 control. Electrical installations should be doneby qualified personnel. Check the DM-1 serial tag for thecorrect voltage, amps and cycles.

❒ Minimum interference from static electricity.The probe cable should be routed away from material con-veying lines, which can be a source of static electricity.

❒ The correct distance from the probe to the control.The standard probe cable is 20 feet. Cable lengths up to100 feet are available. You should specify at time of order.

Make sure the probe is the correct size.The probe should extend from just abovethe hopper to 2 inches (5.8 cm) below thetop of the hopper cone. The probe shouldnot touch the hopper’s air diffuser or anymaterial loading devices mounted on topof the hopper.

Make sure you have the following information.❒ The hopper cone volume.❒ The hopper inner diameter.❒ The usable length of the hopper cylinder.❒ The probe model number.

You will need to enter this information in the DM-1 control during the initial setup.

INSTALLATION 3-3UGD010/0696 DM-1 Drying Monitor

1

2

3

PREPARING FORINSTALLATION

Innerdiameter

Conevolume

Cylinderlength

The DM-1 probe is inserted through a hole in the top of thedrying hopper and secured to a threaded coupling with a com-pression fitting. Mounting adapter plates may be necessary.

There are three mounting methods for the probe:● Select Mounting Method 1 if you purchased a new Conair

drying hopper equipped with a factory-installed couplingfor the probe.

● Select Mounting Method 2 if you are installing the probeand coupling in a drying hopper that has enough overheadclearance to insert the probe from the top of the hopper.

● Select Mounting Method 3 if you are installing the probeand adapter kit on a drying hopper that does not haveenough overhead clearance to insert the probe from the top.

.

Insert the probe through thecoupling in the top of the dryinghopper.

Screw the fitting into thecoupling. Tighten with a wrench.

Adjust the probe height andorientation. The bottom of theprobe should reach about 2 inches(5 cm) below the top of the hoppercone. Turn the probe connector soit will face the cable you installbetween the control and probe.

Push the compression sleeveinto the fitting.

Tighten the nut over the sleeve.The compression sleeve will crimp the tubeto hold the probe in place. Use a wrench totighten the nut so that it covers the threads.

Go to “Mounting the DM-1 Control.”


INSTALLING THEDM-1 PROBE

Tools for Installation:❒

3/4 inch wrench❒ 7/8 inch wrench

CAUTION: Hopper surfaces may be hot.Make sure the drying hopper is empty and hascooled to room temperature before installingthe probe assembly. Failure to do so can leadto serious injury.

1

2

3

MOUNTINGMETHOD 1

2

3

4 Sleeve

5

Connector

Coupling4

5

Remove the mounting adapter plates from the probe assembly.You will not need them. You will need the gasket.

Drill a 1/2 inch (1.27cm) diameter hole in thetop of the hopper.Drill the hole opposite thehopper door, anywherealong a 180˚ arc. The holeshould be drilled no morethan 1/3 the distance fromthe edge of the loaderopening to the inner wallof the hopper. The probeshould not touch anyloading device.

Drill and tap four 10-32UNF holes to match thescrew pattern in the coupling.

Secure the gasket andcoupling to the hopperwith the four 10-32 screws.Remove excess gasket with a knife.

Insert the probe through thecoupling in the top of the hopper.


Adjust the probe height andorientation. The bottom of theprobe should reach about 2 inches(5 cm) below the top of the hoppercone. Turn the probe connector soit will face the cable you installbetween the control and probe.


Tighten the nut over the sleeve.The compression sleeve will crimp thetube to hold the probe in place. Use awrench to tighten the nut so that it coversthe threads.



MOUNTINGMETHOD 2

Tools for Installation:❒ drill and 10-32 tap❒ knife❒ flathead screwdriver❒ 3/4 inch wrench❒ 7/8 inch wrench

TIP: Stretch cloth or plas-tic across the inside of thehopper to catch metalshavings from the hole youwill drill in the top of thehopper.

1

2

3

4

5

Hopperdoor

Loaderopening

X

x/3

Probe hole

Four 10-32 UNFholes evenly spacedaround a 11/2 inch(38.1mm) circle

1/2 inch (12.7mm)diameter center hole

3

Sleeve

5

Connector

Coupling

6

7

8

Gasket

Hopper

Nut

Fitting

78

Hopper(top view)

6

Drill a 2 inch (5.1cm) diameter hole in the topof the hopper.Drill the hole oppositethe hopper door, any-where along a 180˚ arc.The hole should bedrilled no more than 1/3the distance from theedge of the loader open-ing to the inner wall ofthe hopper. The probeshould not touch anyloading device.

Drill and tap three10-32 UNF holes tomatch the screw patternin the adapter plates andgasket. You can use thetemplate in the appendix,or drawing # 18169901.

Remove the two adapterplates from the probemounting assembly. Set themounting plates aside for use inStep 7.

Insert the probe andmounting assemblythrough the doorof the hopper.

Pull the probeand mountingassembly throughthe hole in the topof the hopper.Fold the gasket aroundthe probe so that itwill fit through thehole.


MOUNTINGMETHOD 3

1

2

3

4

5

Tools for Installation:❒ drill and 10-32 tap❒ flathead screwdriver❒ 3/4 inch wrench❒ 7/8 inch wrench

TIP: Stretch plastic orcloth across the inside ofthe hopper to catch metalshavings from the holeyou will drill in the top ofthe hopper.

Adapterplates

4

5

Three 10-32 UNFholes spacedaround a 23/4 inch(7cm) diametercircle 2 inch (5.1cm)

diameter probe hole

45˚

Hopperdoor

Loaderopening

Probe hole

Hopper(top view)

Place the gasket over theprobe hole.

Place the adapter plates overthe gasket and secure them tothe hopper with three10-32 UNFscrews. Make sure the adapter platewith the threaded holes is on thebottom.

Secure the coupling to theadapter plates with the four 10-32 UNF screws.


Adjust the probe heightand orientation. The bottom of the probeshould reach about 2inches (5 cm) below thetop of the hopper cone.Turn the probe connectorso it will face the cableyou install between thecontrol and probe.


Tighten the nut over thesleeve.The compression sleeve will crimpthe tube to hold the probe in place.Use a wrench to tighten the nut sothat it covers the threads.



6

7

8

9

9

10

11

MOUNTINGMETHOD 3

Gasket

6

Sleeve

Connector

Coupling

Hopper

Nut

Fitting

Adapterplate

Threadedadapter plate

7

8

11

12

12

10

The DM-1 control can be mounted to the base of a dryinghopper by using the hopper mounting bracket and arm.

Bolt the hopper bracket and arm to the base ofthe drying hopper. Use the mounting bolts on thedrying hopper. Position the arm so that the control can beseen and easily touched by an operator.

Insert the carriage bolt through the center ofthe control mount.

Attach the control mount to the control. Screwthe four 1/2 inch long, 1/4-20 screws into the threadedholes in the base of the control.

Slide the joint tube onto the arm.

Fasten the control mount to the mounting arm.Insert the carriage bolt through the arm and joint tube.Then attach the knob to the bolt.

Adjust the control position. Loosen the knob, turnthe control to face whatever direction you want, and thentighten the knob.


DM-1 CONTROL:HOPPER MOUNT

1

2

3

4

1

4

2

Tools for Installation:❒ wrench❒ flathead screwdriver

NOTE: Arm extensionsare available as an option.See the appendix forinstructions on installingand using the extensions.

3

5

5

6

You can mount the DM-1 control to a wall or horizontal surface using brackets, or you can bolt the control to a shelf.Place the control where it can be easily seen and touched.

Attach the wall bracket to the mounting armusing four of the 1/2-inch long, 1/4-20 screws.

Bolt the wall bracket and arm to the wall.

Attach the control mount to the control. Insert thecarriage bolt through the control mount. Screw the four 1/2-inch long, 1/4-20 screws through the mount and into thethreaded holes in the base of the control.

Fasten the control mount to the arm. Slide thejoint tube onto the arm. Then insert the carriage boltthrough the arm and joint tube. Attach the knob to the bolt.

Adjust the control position. By loosening the knobyou can turn the control to face any direction.


DM-1 CONTROL:SURFACE MOUNT

1

2

3

4

5

TO MOUNT DIRECTLY TO A SURFACE:Drill one 1/4-inch hole in the surface.

Attach the control mount to the control.Insert a 1/4-20 carriage bolt through themount, then attach the mount to the controlwith the four 1/2-inch long, 1/4-20 screws.

Insert the carriage bolt through thesurface and secure with the knob.

1

2

1

2

4a

3

4b

WARNING:The surface tempera-ture must be lessthan 120˚ F. Highertemperatures willharm the control.

3

!

Tools for Installation:❒ drill❒ flathead screwdriver

NOTE: If you mount thecontrol directly to a shelfor other surface, you needto supply a 1/4-20 carriagebolt that is at least 1/4 inchlonger than the depth ofthe surface.

Use the cable with 15-pin connectors on each end to attach theprobe to the port marked “Probe” on the back of the control.

Attach the 15-pin female con-nector to the probe.

Attach the 15-pin male connec-tor to the control.

The power cord and cables for optional devices connect toplugs and ports on the back of the DM-1 control.


Indoor Use Only

Disconnect Power Before Servicing

Débrancher L'Appareil Avant L'Entretien

Desconectar La Energia Antes de Dar Servicio

CAUTION

AVERTISSEMENT

PRECAUCION

Probe Printer SPI

Alarm Output

Dewpoint Meter

Power

PARTS & SERVICE 800 458 1960

InstantAccess

MODEL

SERIAL PHASE

F.L. AMPSVOLTS

HERTZ

REVISION

DM1

TEAA/0296

1198

100/240

1

1.5/0.7

50/60

CONAIR FRANKLIN

-40.3

CONNECTINGPOWER ANDDEVICE CABLES

CONNECTINGTHE PROBE TOTHE CONTROL

Indoor Use Only

Disconnect Power Before Servicing

Débrancher L'Appareil Avant L'Entretien

Desconectar La Energia Antes de Dar Servicio

CAUTION

AVERTISSEMENT

PRECAUCION

Probe Printer SPI

Alarm Output

Dewpoint Meter

Power

PARTS & SERVICE 800 458 1960

InstantAccess

MODEL

SERIAL PHASE

F.L. AMPSVOLTS

HERTZ

REVISION

DM1

TEAA/0296

1198

100/240

1

1.5/0.7

50/60

CONAIR FRANKLIN

��

��

1

2

TIP: Place the cableinside the cable channelon the mounting arm tokeep it from becomingtangled in equipment.

1

2

Powercord

SPI deviceRS485 serial port

PrinterRS232 serial port

Alarm beacon(optional)

Dew point monitor(optional)

When you start the DM-1 Drying Monitor, the control runs aseries of self tests. These tests will detect software and hard-ware problems, including a faulty probe connection.

Plug the DM-1 control into a power source.

Turn on the DM-1 control.

If everything is working correctly:

◆ CHECK SETTINGS appears in the actual values display.

◆ The setpoint value displays blink on and off.The display will blink the default numbers for 10 secondsor until the settings are changed. Once changed, the num-bers indicate the settings last entered for the material’s bulkdensity, throughput, drying temperature, minimum dryingtime and maximum drying time.

◆ The hopper status light blinks red, then green, then off.

◆ PREDRY and time appears in the actual values display.

The test is over.If the DM-1 completed its self-test as outlined, you canbegin the initial setup. If an error message appeared in theactual values display, see the Troubleshooting section.


TESTING THEINSTALLATION

+ -

1

2

2

3

Setpointvaluedisplays

Status light

Actual values display

Before you can start normal operation, you must provide theDM-1 control with certain information about your applicationand drying hopper size.

You only have to enter this information once, unless you movethe DM-1 control to a different hopper and probe.

Turn off the DM-1 control.

Press the ON switch and the Thruput ▼ buttonat the same time to enter SETUP MODE.

Press the Bulk Density ▼ button to movethrough the list of setup items.Press the Minimum Time ▲ or ▼ button toenter the following:


INITIAL SETUP

+ -

1

2

2

+ -

3

+ -

+ -

+ -

Press ▼ to select YES, if youhave connected an optionaldew point monitor. Otherwise,go to the next item in thesetup list.

Press ▲ to goto the previoussetup item.

Press ▼ to goto the nextsetup item.

Enter the number of degrees(15-75˚) above the setpointtemperature that you want analarm issued. Press ▼ todecrease or ▲ to increase.

Press ▼ or ▲ to set the hourof the day. Time is displayedas a 24-hour clock:00 to 12 = midnight to noon13 to 23 = 1 p.m. to 11 p.m.

Go to the next page.


+ -

+ -

+ -

+ -

+ -

+ -

+ -

INITIAL SETUP

Go to the next page.

Press ▼ or ▲ to set the monthof the year.

Press ▼ or ▲ to set the day ofthe month.

Press ▼ or ▲ to set theminutes of the hour.

Press ▼ or ▲ to set the year.

Press ▼ to select METRIC,otherwise go to the next itemin the list. Units will affectmeasures for bulk density,hopper volume and length.

Press ▲ toincrease a value.

Press ▼ todecrease a value.

Press ▼ to select C for degreesCelsius, otherwise go to thenext item in the list. This willaffect Over Temp and setpointtemperature displays.

Press ▼ to select throughputunits in kilograms/hour(KG/HR). Otherwise, go to thenext item in the list.


INITIAL SETUP

+ -

+ -

Press ▲ to goto the previoussetup item.

Press ▼ to goto the nextsetup item.

+ -

+ -

+ -

+ -

Press ▼ or ▲ to enter the vol-ume of the hopper cone.

English = 0.1 to 100 cubic feetMetric = 3 to 2830 liters

Press ▲ toincrease a value.

Press ▼ todecrease a value.

Press ▼ or ▲ to enter theinside diameter of the hopper.

English = 10 to 99 inchesMetric = 250 to 2514 mm

Press ▼ or ▲ to enter theusable length of the hoppercylinder.English = 1 to 999 inchesMetric = 25 to 25374 mm

Press ▼ or ▲ to enter thebaud rate of your printer(1200, 2400, 4800 or 9600).See the Appendix for printersetup information. If youdon’t have a printer, ignorethis item.

+ -

Press ▼ or ▲ to enter themodel number of the probe.This was entered at the facto-ry. But if you change probesizes, you need to enter this.

This screen is informationalonly. It will display the hop-per volume in pounds or kilo-grams based on the numbersyou have entered.

You have finished initial setup. Go to Operation section.

Innerdiameter

Conevolume

Cylinderlength

NOTE: You will need theinformation you recorded inPreparing for Installation forthese setup items.


● DM-1 control features . . . . . . . .4-2● The three operating modes . . . .4-3● Preparing for operation . . . . . . .4-4● Starting the DM-1 . . . . . . . . . . . .4-5● Using the security feature . . . . .4-6● Returning to Setup Mode . . . . .4-6● Stopping the DM-1 . . . . . . . . . . .4-6

OPERATION

4-2 OPERATIONDM-1 Drying Monitor UGD010/0696

+ -

Status lightOFF = PREDRYThe light is offduring predrymode.

RED = ALARMDrying condi-tions have notbeen met. Do notprocess material.

GREEN = RUNDrying condi-tions have beenmet. Material isready to process.

Power On/OffPress to turn theDM1 on and off.

Actual values displayThe green window displays actualdrying temperature and actual dryingtime; alarm messages; and the unitsof measure chosen during the initialsetup.

NOTE: The timer counts accumulateddrying time during PREDRY. DuringRUN, it displays actual drying timebased on the setpoints and tempera-tures in the hopper.

CheckPress and holdto display alarmmessages andsilence the audi-ble alarm.

Setpoint displaysThe red windows display setpointsentered for bulk density, through-put, temperature, minimum dryingtime and maximum drying time.

Maximum drying timeAlerts the operator to conditions inthe hopper that will cause the rec-ommended drying time to beexceeded.Press and hold ▲ or ▼ to enter themaximum amount of time the mater-ial can be dried at the setpoint tem-perature before it begins todegrade. The setting must be atleast 150% of the minimum timesetpoint

NOTE: If over drying is not a con-cern, enter 30 hours.

Minimum drying timePrevents under drying material.Press and hold ▲ or ▼ to enter theamount of time the resin manufactur-er recommends for drying the materi-al at the setpoint temperature.

Drying TemperaturePress and hold ▲ or ▼ to enter the temper-ature the resin manufacturer recommendsfor drying the material. Temperature may beentered in degrees F or C.

Material ThroughputPress and hold ▲ or ▼ to enter thenumber of pounds or kilograms ofmaterial you intend to process inone hour.

Bulk DensityPress and hold ▲ or ▼ toenter the weight of the materi-al in pounds per cubic foot orkilograms per cubic meter.

DM-1 CONTROLFEATURES

The DM-1 follows the drying process through three operatingmodes: PREDRY, RUN and ALARM. The hopper status lightand actual values display shows which one is active.

PREDRY:Status light OFF

◆ The DM-1 begins monitoring temperature in the hopper.◆ When the lowest sensor in the probe senses the setpoint

temperature, the DM-1 timer starts. The actual time at thedrying temperature is displayed.

RUN:Status light green

Start processing material.

◆ The DM-1 calculates that sufficient material has dried at thesetpoint temperature to satisfy your throughput.

◆ The control displays the length of time the material will bedried at the setpoint temperature before leaving the hopper.

The DM-1 will return to PREDRY mode if:● Power has been interrupted for more than 24 hours.● All probe sensors detect temperatures below 120˚F (48˚C).● The operator clears the timer field by simultaneously press-

ing Minimum Time ▼ and Maximum Time ▼ buttons.

ALARM:Status light red

◆ The DM-1 has issued an alarm. Drying conditions have notbeen met, or there may be a problem with the DM-1 probe.

Press to see what caused the alarm.

Go to the Troubleshooting section.

OPERATION 4-3UGD010/0696 DM-1 Drying Monitor

THE THREEOPERATINGMODES

+ -

+ -

1

1

2

WARNING:You should stop processingimmediately and examinethe DM-1 probe if the controldisplays a Probe Error.A loose probe coulddamage your processingmachine.

!

The DM-1 will need the following information to calculatewhen the drying conditions have been met.

❒ The bulk density of the material.If you don’t know the bulk density, you can calculate itusing the bottle provided.

❒ The throughput of your processing machine.Calculate how many pounds or kilograms of material youprocess each hour.

❒ The drying temperature for the material.Look for the recommended drying temperature on the resincontainer or in the resin manufacturer’s specifications.

❒ The minimum drying time for the material.Look for the recommended drying time on the resin con-tainer or in the resin manufacturer’s specifications.

❒ The maximum drying time for the material.Consult the resin manufacturer’s specifications. You want toknow the maximum amount of time the material can bedried at the setpoint temperature before it begins to discoloror degrade. If over drying is not a concern, you can can setmaximum time on the DM-1 control to 30 hours.

How to calculate bulk densityFill the bottle with material.

Level off the top with a straightedge. Do not shake or pack thematerial into the bottle.

Weigh the bottle full ofmaterial.

Refer to the bulk densitychart on the bottle.Weights are in pounds.

4-4 OPERATION DM-1 Drying Monitor UGD010/0696

PREPARING FOROPERATION

��1

2

3

4

OPERATION 4-5

Turn on power to the DM-1.If you were in Setup Mode, you need to turn off the DM-1and then turn it back on.

◆ The monitor performs a self test, blinking the actualand setpoint displays.

◆ Status light blinks red, then green, then off.◆ PREDRY and time appear in the actual display.

Press ▼ or ▲ to enter thematerial’s bulk density.

◆ Actual display will indicatelbs/cubic foot or kg/cubicmeter.

Press ▼ or ▲ to enter thethroughput.

◆ Actual display will indicatelbs/hr or kg/hr.

Press ▼ or ▲ to enter thedrying temperature.

◆ Actual display will indicateDegrees F or Degrees C.

Press ▼ or ▲ to enter theminimum drying time.

◆ Actual display will indicateHours / Minutes.

Press ▼ or ▲ to enter themaximum drying time.

◆ Actual display will indicateHours / Minutes.

Start your dryer.

+ -

+ -

+ -

+ -

1

2

3

STARTING THEDM-1

+ -

PowerON

+ -

4

5

6

7

Press ▲ and holdto increase a value.

Press ▼ and holdto decrease a value.


The DM-1 has a security feature that prevents accidental orunauthorized changes to the bulk density, throughput, temper-ature and time settings. Only the CHECK button functionswhen security is on.

The security feature can beenabled or disabled at anytimeduring DM-1 operation.

Press the MinimumTime ▲ and MaximumTime ▲ at the same timeto turn security ON.

Repeat Step 1 to turnsecurity OFF.

If you need to change setup information, such as switchingfrom English or metric units of measure:

Turn off the DM-1 control.

Press the ON switchand the Thruput ▼button at the sametime.

Press the Bulk Density▼ button to move throughthe list of setup items.

Press the Minimum Time ▲ or ▼ button toenter the information.

Press OFF and then ON to return tooperating mode after you’ve finished chang-ing setup information.

Turn OFF power to the DM-1 control.

NOTE: If power is off for more than 5 minutes andless than 24 hours, the DM-1 will alarm on restart.Press the CHECK button to turn off the audiblealarm. When the CHECK button is released thePOWER OFF message will be removed.

4-6 OPERATIONDM-1 Drying Monitor UGD010/0696

On

Off

USING THESECURITYFEATURE

RETURNING TOSETUP MODE

STOPPINGTHE DM-1

+ -

+ -

1

2

+ -

2

1

2

33

4

5

4

1

See the Installationsection for initialsetup instructions.

On

Off

On

Off


● DM-1 maintenance checklist . . .5-2

MAINTENANCE

5-2 MAINTENANCEDM-1 Drying Monitor UGD010/696

The DM-1 Drying Monitor requires little maintenance. Werecommend the following maintenance schedule and tasks.

● Whenever you change hoppers❒ Verify or change the initial setup information

entered in the DM-1 control.Setup entries for the probe model, cone volume,hopper diameter and usable hopper cylinder lengthmust be correct for the hopper and probe you planto use. See the Installation section for details oninitial setup information.

❒ Verify or change setpoint entries on the control.Verify that the bulk density, throughput,temperature and time settings are correct for the

application and material in this hopper.

● Whenever you change materials❒ Change the setpoint entries on the control.

Verify that the bulk density, throughput,temperature and time settings are correct for the

new material.

❒ Inspect the probe and mounting assembly.If the probe is damaged, replace it. If vibration hasloosened the probe mounting hardware, tighten it.

● Monthly, or as often as needed❒ Inspect cables and cords for damage or wear.

Replace any cable or power cord that is worn.

❒ Inspect cable connections.Check for damage or loose connections. Tightenconnections or replace damaged connectors.

DM-1MAINTENANCECHECKLIST


● Before beginning .......................... 6-2● A few words of caution ................6-2

DIAGNOSTICS● When an alarm occurs ..................6-3● Drying system alarms ................. 6-4

Over Temp. Top . . . . . . . . . .6-4Over Temp. Bottom . . . . . .6-4Temp. Low . . . . . . . . . . . . .6-5Power Off . . . . . . . . . . . . . .6-5Low Drying Time . . . . . . . .6-6High Drying Time . . . . . . . .6-7Hopper Too Small . . . . . .6-7Dewpoint . . . . . . . . . . .6-7

● DM-1 system alarms ................... 6-8Probe Error . . . . . . . . . . . . .6-8Sensor Failed . . . . . . . . . . .6-8Fatal Error . . . . . . . . . . . . .6-8Memory Error . . . . . . . . . . .6-9

TROUBLESHOOTING

6-2 TROUBLESHOOTINGDM-1 Drying Monitor UGD010/0696

You can avoid most problems by following the recommendedinstallation and maintenance procedures outlined in this UserGuide and your drying equipment manuals.

If you do have a problem, this section will help you determinewhat caused it. You’ll also find repair information, if the prob-lem was caused by the DM-1 control or probe.

Before you begin troubleshooting:

❏ Find the wiring and assembly diagrams youreceived with your DM-1. These diagrams will noteany custom features, such as special wiring or alarm capa-bilities, not covered in this User Guide.

❏ Find the instruction manuals and diagramsthat were shipped with your dryer and hopper.The DM-1 alarm messages will help you diagnose prob-lems in your drying system, but you’ll need the instructionsassociated with your particular dryer and hopper to makeany repairs.

CAUTION: Protect yourself fromhot surfaces inside and outsidethe hopper and dryer.Always allow the hopper to cool beforerepairing or replacing the DM-1 probe.

A FEW WORDSOF CAUTION

CAUTION: Disconnect andlockout power before servicing.Always turn off the dryer, disconnect andlock out the main power source beforerepairing problems with the DM-1 probe orthe drying system.

WARNING: Only qualified servicepersonnel should examine and correctproblems that require opening electricalenclosures or using electrical wires todiagnose the cause.

!

BEFOREBEGINNING

When there is a problem, the DM-1:

Press CHECK to silence the audible alarmand display the alarm message.

NOTE: POWER OFF, FATAL ERROR, MEMORYERROR and PROBE ERROR will display wheneverthat problem occurs. You need to press the CHECKbutton to acknowledge and clear these messages.

Press and hold CHECK if more than onealarm condition exists.

The display will show the number ofalarms. As you hold the CHECK button,each alarm message will appear in thedisplay in the order in which the problemoccurred.

TROUBLESHOOTING 6-3UGD010/0696 DM-1 Drying Monitor

WHEN ANALARM OCCURS

1

2

Changes thehopper statuslight to red.

DisplaysALARM oran alarm message.

Will blink this fieldif the probleminvolves dryingtime.

Will blink this fieldif the probleminvolves dryingtemperature.

Activates the audible alarmand any optional alarms orshutdown devices.

Multiple alarms

WARNING: A broken probe coulddamage your machine.If you see a PROBE ERROR message,immediately shut down your processingmachine. Check for loose or damagedcable connections and wiring between theprobe and control. If no problems arefound, check the probe for damage.

!


Drying system alarms indicate a problem with your dryer,hopper or the hoses connecting the two.

Alarm

One or both uppersensors in the DM-1probe sensed tem-peratures exceedingthe safety marginyou set for the dry-ing temperature.

Any of the fourlower sensors in theDM-1 probe sensedtemperatures exceed-ing the safety marginyou set for the dry-ing temperature.

DRYING SYSTEMALARMS

Possible causeIs the hose delivering hotair to the hopper connect-ed to the wrong inlet?

Are the dryer’s blowersrunning backwards?

Were setpoint tempera-tures correctly entered inthe DM-1 control?

Has your dryer malfunc-tioned?

Were setpoint tempera-tures correctly entered inthe DM-1 control?

Solution

Verify that the dryer’s deliveryair hose is connected to theinlet near the bottom of thehopper. The hose returningmoist air to the dryer should beconnected to the outlet near thetop of the hopper.

Verify that the blowers areturning in the same directionas the arrow stamped on theirhousings. If rotation isreversed, consult your dryermanual for repair information.

Verify the setpoint temperatureand Over Temp. setup informa-tion. Correct, if necessary.

Check your dryer.Malfunctions in the dryer’sheaters, temperature controller,temperature sensors or electri-cal system could cause exces-sively hot air to be delivered tothe hopper. Consult your dryermanual for troubleshootingand repair information.

Verify the setpoint temperatureand Over Temp. setup informa-tion. Correct, if necessary.

Press CHECK tosilence the audible alarm anddisplay the alarm message.


Drying system alarms indicate a problem with your dryer,hopper, or hoses connecting the two.


DRYING SYSTEMALARMS

Alarm

The bottom sensor inthe DM-1 probedetermined that thetemperature has fall-en below the dryingtemperature setpoint.

The DM-1 detecteda loss of power formore than 5 minutesbut less than 24hours. The displayindicates the lengthof time withoutpower.

Possible causeIs the dryer unable tosupply enough air at thesetpoint temperature?

Has the dryer malfunc-tioned?

Was the setpoint temper-ature entered correctly inthe dryer and DM-1 con-trol?

Was the DM-1 discon-nected from it’s powersource?

Did the DM-1 and thedryer lose power?

Solution

Check filters and hoses for con-ditions that would reduce airflow to the hopper.❒ Straighten crimps in hoses.❒ Connect any loose hoses.❒ Replace damaged hoses.❒ Clean or replace dirty filters.

Check your dryer. Malfunctionsin the dryer's blowers, heaters,temperature controller, temper-ature sensors or electrical sys-tem could prevent delivery ofhot air to the hopper. Consultyour dryer manual for trou-bleshooting and repair informa-tion.

Verify the drying temperaturesetpoint. Correct, if necessary.

Press the CHECK button toacknowledge the message. TheDM-1 will resume operation.

Press the CHECK button toacknowledge the message. If the DM-1 resumes in ALARMmode, hold the CHECK buttonto display any additionalalarms. If the DM-1 resumes inRUN mode, you can continueoperating. But if you want toreturn to PREDRY, press theMinimum and Maximum Time▼ buttons to clear the time.


Drying system alarms indicate a problem with your dryer,hopper or the hoses connecting the two.DRYING SYSTEM

ALARMS


Alarm

Temperatures insidethe hopper indicatethe material needsmore drying time atthe setpoint tempera-ture to satisfy theminimum time andthroughput require-ments you entered inthe DM-1.

Possible causeIs the dryer unable tosupply enough air at thesetpoint temperature?

Is your loading systemkeeping enough materialin the hopper to satisfythroughput?

Did someone removedried material from thishopper to prime anothermachine?

Were the setpointsentered correctly in theDM-1?

Is the throughput toohigh for the size of thedryer?

Are you loading exces-sively cold material intothe hopper?

Solution

Check filters and hoses forconditions that would reduceair flow to the hopper.❒ Straighten crimps in hoses.❒ Connect any loose hoses.❒ Replace damaged hoses.❒ Clean or replace dirty fil-

ters.

Verify that the material supplysystem is working correctly.Consult your conveying systemmanuals for troubleshootingand repair information.

Continue drying the materialuntil the DM-1 changes fromALARM mode to RUN mode,indicating that drying condi-tions have been met.

Verify the minimum time, dry-ing temperature and through-put setpoints. Correct, if neces-sary.

Use a larger dryer for thisapplication or reduce therequired throughput.

Material stored outside inextremely cold temperaturescan overload a dryer’s capaci-ty. You may need to predry thismaterial or use a larger capaci-ty dryer to satisfy the dryingtemperature and time require-ments.

TROUBLESHOOTING 6-7UGD010.0696 DM-1 Drying Monitor

Drying system alarms indicate a problem with your dryer,hopper or hoses connecting the two.


DRYING SYSTEMALARMS

Alarm

Drying time at thesetpoint temperaturehas exceeded yourmaximum time set-ting. Material maydiscolor or degradefrom over drying.

The DM-1 has deter-mined that the hop-per is not largeenough to satisfytime, temperatureand throughput set-points.

Dew point is unsatis-factory.

NOTE: This alarmwill appear only ifthe DM-1 is connect-ed to an optionaldew point monitor.

Possible cause


Did you reduce yourthroughput?

Are you running a lowthroughput with a largehopper?

Are you running a highthroughput with a smallhopper?


Did you enter the correctinformation about hoppersize while setting up theDM-1?

Are there any leaks in theprocess or regenerationair circuits?

Is the desiccant saturatedor contaminated?

Did the dryer malfunc-tion?

Solution

Verify the maximum time andthroughput setpoints. Correct,if necessary.

Make sure the setpoint youentered in the DM-1 controlmatches the actual throughput.

Throughput may be too lowfor this size hopper. Use asmaller hopper for this applica-tion, or increase throughput.

Throughput may be too highfor this size hopper. Use alarger hopper for this applica-tion, or reduce throughput.

Verify the minimum time, bulkdensity and throughput set-points. Correct, if necessary.

Return to SETUP MODE andverify the cone volume, hopperdiameter and cylinder lengthfor this hopper.

Consult your dryer and dewpoint monitor manuals fortroubleshooting and repairinformation on any problemsrelating to unsatisfactory dewpoints.


DM-1 system alarms indicate a problem with the DM-1 con-trol or probe.DM-1 SYSTEM

ALARMS

Press CHECK tosilence the audible alarm andacknowledge the alarm mes-sage.

Alarm

The DM-1 hasdetected a brokenprobe or multiplesensor failure.

WARNING:Immediately shutdown your pro-cessing machineand check theprobe when yousee this message.A broken probecould damage yourmachine.

The DM-1 hasdetected a sensorfailure in the probe.

The DM-1 hasdetected a hardwarefailure in the control.No audible alarm issounded because itmay not be possible.

Possible causeIs the probe cable or con-nector loose or damaged?

Has the probe come loosefrom its mounting in thetop of the hopper?

Has more than one sensorfailed in the probe?

One sensor in the probehas failed.

The DM-1 control’s inter-nal hardware has failed.

Solution

Verify that the probe cable issecurely fastened to the probeconnector and to the probe porton the back of the DM-1 con-trol. Replaced damaged con-nectors or a damaged probecable.

Shut down your processingmachine and verify that theprobe is securely fastened toits mount in the top of the hop-per. If the probe is broken,remove all pieces from thehopper and replace the probe.

If the probe, connectors andcable are secure and undam-aged, there has been a multiplesensor failure. Replace theDM-1 probe.

Install a replacement probe assoon as possible. The DM-1control will continue to operatewith one failed sensor.

Contact the Conair servicedepartment for a replacementcontrol. The DM-1 will notoperate in this condition.

!


DM-1 system alarms indicate a problem with the DM-1 con-trol or probe.


DM-1 SYSTEMALARMS

Alarm

The DM-1 hasdetected a problemwith its internalmemory.

Possible causeDid static electricity or apower surge temporarilydisrupt the control’sinternal memory?

Did an internal memorychip fail?

Solution

Turn off power to the DM-1and then turn it back on. If thisdoes not solve the problem,reset the setpoints and turn thecontrol’s power off and onagain.

If resetting setpoints and turn-ing the power off and on doesnot work, call the Conair ser-vice department. The controlmay have a bad memory chip.

Conair has made the largest investment in customer support inthe plastics industry. Our service experts are available to helpwith any problem you might have installing and operatingyour equipment. Your Conair sales representative also can helpanalyze the nature of your problem, assuring that it did notresult from misapplication or improper use.

To contact Customer Service personnel, call:

From outside the United States, call: 814-437-6861

You can commission Conair service personnel to provide on-site service by contacting the Customer Service Department.Standard rates include an on-site hourly rate, with a one-dayminimum plus expenses.

If you do have a problem, please complete thefollowing checklist before calling Conair:

❒ Make sure you have all model, serial and parts listnumbers for your particular equipment. Servicepersonnel will need this information to assist you.

❒ Make sure power is supplied to the equipment.

❒ Make sure that all connectors and wires withinand between control systems and related components have been installed correctly.

❒ Check the troubleshooting guide of this manualfor a solution.

❒ Thoroughly examine the instruction manual(s)for associated equipment, especially controls.Each manual may have its own troubleshootingguide to help you.

❒ Check that the equipment has been operated asdescribed in this manual.

❒ Check accompanying schematic drawings for information on special considerations.

SERVICE INFORMATION APPENDIX A-1IMS0002/0296

BEFORE YOU

CALL ...

HOW TO CONTACT

CUSTOMER

SERVICE

Additional manuals andprints for your Conairequipment may beordered through theCustomer Service orParts Departments fora nominal fee.

WE’RE HERETO HELP

APPENDIX A-2 WARRANTY INFORMATION

EQUIPMENTGUARANTEE

PERFORMANCEWARRANTY

WARRANTY

LIMITATIONS

IMS0003/0795

Conair guarantees the machinery and equipment on this order,for a period as defined in the quotation from date of shipment,against defects in material and workmanship under the normaluse and service for which it was recommended (except forparts that are typically replaced after normal usage, such asfilters, liner plates, etc.). Conair’s guarantee is limited toreplacing, at our option, the part or parts determined by us tobe defective after examination. The customer assumes the costof transportation of the part or parts to and from the factory.

Conair warrants that this equipment will perform at or abovethe ratings stated in specific quotations covering the equip-ment or as detailed in engineering specifications, provided theequipment is applied, installed, operated and maintained in therecommended manner as outlined in our quotation or specifi-cations.

Should performance not meet warranted levels, Conair at itsdiscretion will exercise one of the following options:

● Inspect the equipment and perform alterations oradjustments to satisfy performance claims. (Chargesfor such inspections and corrections will be waivedunless failure to meet warranty is due to misapplica-tion, improper installation, poor maintenance practicesor improper operation.)

● Replace the original equipment with other Conairequipment that will meet original performance claimsat no extra cost to the customer.

● Refund the invoiced cost to the customer. Credit issubject to prior notice by the customer at which time aReturn Goods Authorization Number (RGA) will beissued by Conair’s Service Department. Returnedequipment must be well crated and in proper operatingcondition, including all parts. Returns must be prepaid.

Purchaser must notify Conair in writing of any claim and pro-vide a customer receipt and other evidence that a claim isbeing made.

Except for the Equipment Guarantee and PerformanceWarranty stated above, Conair disclaims all other warrantieswith respect to the equipment, express or implied, arisingby operation of law, course of dealing, usage of trade or oth-erwise, including but not limited to the implied warranties ofmerchantability and fitness for a particular purpose.

APPENDIX B-1IMD001/0696 PROBE MOUNTING TEMPLATES

DRILL AND TAP FOUR 10-32 UNF HOLES SPACED

ON A 1.5 INCH DBC .219 inch

0.5 inch

90.0˚

1.5 inch

1.375 inch R

2.0 inches

45.0˚

90.0˚

DRILL AND TAP THREE 10-32 UNF HOLES

0.219inch

TEMPLATE FORDM-1 PROBEMOUNTINGMETHOD 2

TEMPLATE FORDM-1 PROBEMOUNTINGMETHOD 3

This drawing may be used as a template for drilling holes in thetop of the hopper to mount the DM-1 probe using the couplingportion of the mounting adapter kit.

This drawing may be used as a template for drilling holes in thetop of the hopper to mount the DM-1 probe using the couplingand mounting adapter plates contained in the kit.

The DM-1 Drying Monitor can be connected to an EpsonLX300 or compatible printer that has:

● A RS-232 serial port● Supports continuous feed paper● Prints a minimum of 80 characters per line● Supports 1200 to 9600 baud communications

The printer cable configuration is:

You need to configure your printer to communicate with theDrying Monitor. Use the instructions that came with yourprinter to set these parameters

Set the printer’s baud rate. The setting should be 9600, 4800, 2400 or 1200 for theDM-1; 1200 for the DM-1A.

Set communications parameters to:Data bits = 8Start bit = 1Stop bit = 1Parity = None (No)

Set DTR (Data Terminal Ready) to OFF.On printers with a choice of High/Low, set to Low.

Set XON/XOFF flow control to OFF.

Set ETX/ACK (End Transmission/Acknowledge) to OFF.Disable or turn OFF any other communications handshak-ing parameters your printer may use.

Make sure the baud rate you set in the printer agrees with thebaud rate entered in the drying monitor during initial setup. Ifyou have not set up the drying monitor, go to Initial Setup inthe Installation section of the monitor’s User Guide.

APPENDIX C-1IMD002/0696 DM-1 PRINTER SETUP INFORMATION

Printer25 pin male D-Sub

connector

TransmitTransmitReceive

Common

Receive

Common

Drying Monitor9 pin male D-Sub

connector

DRYING MONITORPRINTERSPECIFICATIONS

SETTING UP THEPRINTER FORCOMMUNICATION1

2

3

4

5

APPENDIX C-2 DM-1 PRINTER SETUP INFORMATION IMD002/0696

************************************************************************Date :02-22-96 Time :12:00Hopper Size: Cone :.9 Cu Ft Bulk Density :40 Lb/Cu Ft

Inside Diameter :22 in Thruput :50 Lb/hrVolume :344 Lbs Drying Time: Min : 4:00

Temperature :250 F Max :12:00************************************************************************

Time Drying Time Status T1 T2 T3 T4 T5 T6 D.P.

12:00 3:30 Predry 250 248 247 244 243 242 Good12:15 3:45 Predry 250 249 248 245 244 242 Good12:30 6:51 Run 250 249 248 246 245 243 Good12:45 6:51 Run 249 248 247 245 244 240 Good13:00 6:31 Run 249 247 244 243 238 234 Good13:15 5:56 Run 249 246 243 239 235 228 Good13:30 5:45 Run 250 245 240 237 233 220 Good13:45 5:39 Run 250 245 239 236 231 218 Good14:00 5:28 Run 249 245 240 236 230 214 Good14:15 5:29 Run 250 246 240 236 229 213 Good14:30 5:29 Run 249 246 241 237 229 213 Good14:45 5:31 Run 249 247 242 237 229 214 Good15:00 5:31 Run 250 247 243 238 229 215 Good15:15 5:39 Run 250 248 244 248 229 216 Good

SAMPLEPRINTOUT

Setpoints entered by the operator are printed betweenlines of asterisks at the top of each page. This data alsowill be printed when:● The DM-1 is turned on.● Power is restored after an interruption● Any control button, except CHECK, is pressed.

Time data wasrecorded in hoursand minutes.

Current drying timecalculated for mate-rial in the hopper.

Actual temperaturesrecorded by sensorsinside the hopper.T1 is at the lowestlocation in the probe;T6 is at the highestlocation in the probe.

Operating status.PREDRY, RUN orALARM.

Prints GOOD or BAD if anoptional dew point monitor isconnected to the DM-1 control.GOOD indicates dew point is ator below the setpoint tempera-ture entered by the operator.

Documents

It’s a good idea to record the model and serial number(s) of...It’s a good idea to record the model and serial number(s) of your equipment and the date you received it in the User