Users’Manual
Rev. 8C1501
DetachableHotPlate
© Copyright,1998 All rights reserved
Hart Scientific, Inc.
799 E. Utah Valley Drive
American Fork, Utah 84003-9775
Telephone (801) 763-1600 • Fax (801) 763-1010Internet:http://www.hartscientific.com
The plate gets extremely hot.DO NOT TOUCH.DO NOT TOUCHthe metal parts on the plate.
WARNING
WARNING
To ensure the safety of operating personnel, and to avoid damage to this equipment:DO NOTconnect this unit to any other instrument or outlet other than the 2200 controller.
WARNING
HIGH VOLTAGE
is used in the operation of this equipment.
SEVERE INJURYOR DEATH
may result if personnel fail to observe safety precautions.
Before working inside the equipment, turn power off and disconnect power cord.
WARNING
HIGH TEMPERATURE MAYBE PRESENT
in this equipment.FIRES AND SEVERE BURNS
may result if personnel fail to observe safety precautions.
a
To ensure the safety of personnel, and to avoid damage to equipment:DO NOTuse this unit for any application other than calibration work.
DO NOTuse this unit in environments other than those listed in the user’s manual.
Continuous use of this equipment at high temperatures for extended periods of time requires caution.Completely unattended high temperature operation is not recommendedfor safety reasons.Components and heater lifetimes can be shortened by continuous high temperature operation.
Follow all safety guidelines listed in the user’s manual.
WARNING
The 2200 Controller and the 3125 Detachable Hot Plate are a matched set.
DO NOTmix and match sets.
WARNING
WARNING
CALIBRATION EQUIPMENT SHOULD ONLYBE USED BYTRAINED PERSONNEL.
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Table of Contents
1Introduction. . . . . . . . . . . . . . . . . . . . . .12Specifications and Environmental Conditions. . . .3
2.12.22.3
Specifications. . . . . . . . . . . . . . . . . . . . . . .3Environmental Conditions. . . . . . . . . . . . . . . . .3Warranty. . . . . . . . . . . . . . . . . . . . . . . . . .3
3Safety Guidelines. . . . . . . . . . . . . . . . . . .54Troubleshooting. . . . . . . . . . . . . . . . . . . .7
i
1Introduction
1Introduction
Hart Scientific’s Model 3125 Detachable Hot Plate is controlled by Hart Scien-tific’s 2200 controller and uses a precision platinum RTD as a sensor with aheater to control the temperature. The 3125 and 2200 are a matched set. Bothof them have the same serial number.
The controller display shows the temperature and also the set-point tempera-ture. The temperature may be set to any temperature within the range of 35°Cto 400°C in 0.01°C or °F increments by using the buttons on the control panel.The controller’s multiple fault protection devices insure user and instrumentsafety and protection.
The Detachable Hot Plate (see Figure 1) consists of a controlled plate made ofaluminum. Aheater is attached to the bottom with an RTD temperature sensorused to control it. The housing consists of a top cover and a base, which serveas a clamp and strain relief point for the wiring. The Reference Well is avail-able for use with a 3/16-inch diameter probe, which may be used to check theplate temperature. This well is used to calibrate the system.1150/2300W10 A115/230V50/60 Hz3115V1PROBEHEATER24RS-232115/230VAC 50/60 Hz2200 Controller Back Panel3125 Hot Plate AssemblyFigure1Controller and Hotplate Assembly3125Manual Rev. 8C15011
1Introduction
2Manual Rev. 8C1501Hart Scientific
2Specifications and Environmental Conditions
2
2.1
Specifications and EnvironmentalConditions
Specifications
Operating RangeAccuracy35°C to 400°C (95°F to 752°F)±0.5°C to 200°C±1.0°C to 400°CTraceable to NIST0.01°C or °F°C or °F switchable±0.2°C to 200°C±0.3°C to 400°CHart Model 2200 Microprocessor based withRS232 serial portRTD325 Watt, solid state controlled3.8 inch diameter4.5 lb. (2.1 kg)ResolutionReadoutStabilityControllerSensorHeaterPlate (accessible)Weight2.2Environmental Conditions
Although the instrument has been designed for optimum durability and trou-ble-free operation, it must be handled with care. The instrument should not beoperated in an excessively dusty or dirty environment. The instrument oper-ates safely under the following conditions:
•temperature range: 5-40°C (41-104°F)•ambient relative humidity: 15-50%•pressure: 75kPa-106kPa
•mains voltage within ±10% of nominal
•vibrations in the calibration environment should be minimized•altitude does not effect the performance or safety of the unit
2.3Warranty
Hart Scientific, Inc. (Hart) warrants this product to be free from defects in ma-terial and workmanship under normal use and service for a period as stated inour current product catalog from the date of shipment. This warranty extendsonly to the original purchaser and shall not apply to any product which, in
3125Manual Rev. 8C15013
2Specifications and Environmental Conditions
Hart’s sole opinion, has been subject to misuse, alteration, abuse or abnormalconditions of operation or handling.
Software is warranted to operate in accordance with its programmed instruc-tions on appropriate Hart products. It is not warranted to be error free. Hart’sobligation under this warranty is limited to repair or replacement of a product,which is returned to Hart within the warranty period and is determined, uponexamination by Hart, to be defective. If Hart determines that the defect or
mal-function has been caused by misuse, alteration, abuse or abnormal condi-tions or operation or handling, Hart will repair the product and bill the pur-chaser for the reasonable cost of repair.
To exercise this warranty, the purchaser must forward the product after callingor writing Hart for authorization. Hart assumes NO risk for in-transit damage.For service or assistance, please contact the manufacturer.
Hart Scientific, Inc.
799 East Utah Valley Drive
American Fork, UT84003-9775Phone: (801) 763-1600Fax: (801) 763-1010
E-mail: support@hartscientific.com
THE FOREGOING WARRANTYIS PURCHASER’S SOLE AND EXCLUSIVEREMEDYAND IS IN LIEU OF ALLOTHER WARRANTIES, EXPRESS ORIMPLIED, INCLUDING BUTNOTLIMITED TO ANYIMPLIED WARRANTYOR MERCHANTABILITY, OR FITNESS FOR ANYPARTICULAR PURPOSEOR USE. HARTSHALLNOTBE LIABLE FOR ANYSPECIAL, INDIRECT, IN-CIDENTAL, OR CONSEQUENTIALDAMAGES OR LOSS WHETHER INCONTRACT, TORT, OR OTHERWISE.
4Manual Rev. 8C1501Hart Scientific
3Safety Guidelines
3Safety Guidelines
•Operatetheinstrumentinroomtemperaturesbetween5-50°C
(41-122°F).Allowsufficientaircirculationbyleavingatleast15cm(6inches)ofspacebetweentheinstrumentandnearbyobjects.Overheadclearance45cm(18inches)toallowforsafeandeasyplacementandre-moval of sensors for calibration.
•Thehotplateisaprecisioninstrument.Althoughithasbeendesignedfor
optimumdurabilityandtroublefreeoperation,itmustbehandledwithcare.Theinstrumentshouldnotbeoperatedinexcessivelydustyordirtyenvironmentsornearliquidsthatmaypresentanelectricalshockhazard.Do not operate near flammable materials.
•DO NOTuse fluids to clean off the surface.
•Theinstrumentgeneratesextremetemperatures.Precautionsmustbe
takentopreventpersonalinjuryordamagetoobjects.Sensorsmaybeex-tremelyhotwhenremovedfromtheinstrument.Cautiouslyhandlesensorstopreventpersonalinjury.Carefullyplacesensorsonaheatre-sistantsurfaceorrackuntiltheyareatroomtemperature.Allowthesur-face to cool before transporting the instrument.
•Neverintroduceanyforeignmaterialontothesurfaceplate.Fluids,etc.
can leak into the instrument causing damage.
•Theunitisfusedthroughthe2200Controller.Refertothe2200Controller
manual for fuse information.
3125Manual Rev. 8C15015
3Safety Guidelines
6Manual Rev. 8C1501Hart Scientific
4Troubleshooting
4Troubleshooting
If problems arise while operating the 3125, this section provides some sugges-tions that may help you solve the problem. Opening the unit without contactingHart Scientific Customer Service may void the warranty.Unit will not heat
•Check the power cord to see if it is connected to the 2200 controller.
Out of calibration
•Ensurethatthe2200and3125areamatchedset.Checktheserialnum-
bertothehotplateonboththehotplateandthe2200controller.Thesetwoserial numbers must match.
•CheckthatthecalibrationparametersR0,Alpha,andDeltamatchtheRe-
port of Calibration.Fuses blow
•Make sure the correct fuse rating and type are being used.
•Onlyoperatethehotplateatthevoltagespecifiedontheserialnumberla-
bel.Unit is unstable
•CheckthattheproportionalbandonthecontrollermatchestheReportof
Calibration.
•Make sure ambient conditions are stable
3125Manual Rev. 8C15017
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