GE CTR 80 manual Cold Baths

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1 Before You Start

•DO NOT operate this instrument in an excessively wet, oily, dusty, or dirty environment.

•The unit is a precision instrument. Although it has been designed for opti- mum durability and trouble free operation, it must be handled with care. Position the unit before the tank is filled with fluid. Use the handles pro- vided to move the unit. Due to the weight of the compressor, it may re- quire two people to safely move the bath. If two people are used, place one person in the front and one person in the back of the unit, carefully slide hands under the unit and lift in unison. The area containing the com- pressor will be heavier than the rest of the unit. Do not move a unit filled with fluid.

•Most probes have handle temperature limits. Be sure that the probe handle temperature limit is not exceeded in the air above the instrument.

•The instrument and any thermometer probes used with it are sensitive in- struments that can be easily damaged. Always handle these devices with care. Do not allow them to be dropped, struck, stressed, or overheated.

COLD BATHS

•Refrigerated baths require that the condensing coil be cleaned periodi- cally. Accumulation of dust and dirt on the condenser will result in pre- mature failure of the compressor.

•This bath has been equipped with a brownout and over voltage protection device as a safety feature to protect the system components.

•Mode of Operation: This bath needs to be plugged into the line voltage for at least 2 minutes before operation. This is only necessary for the first time that the bath is energized or when it is moved from one location to another. Turning the bath ON or OFF does not trigger the delay.

•If a High/Low voltage condition exists for longer than 5 seconds, the bath de-energizes. An amber indicator on the back panel lights when this con- dition exists.

•Re-energization is automatic upon correction of the fault condition and af- ter a delay cycle of about 2 minutes. If a fault condition exists upon appli- cation of power, the bath will not energize.

•Under and Over Voltage Protection at 115 VAC

♦Voltage Cutout: ±12.5% (101 - 129 VAC)

♦Voltage Cut In: ±7.5% (106 - 124 VAC)

•Under and Over Voltage Protection at 230 VAC

♦Voltage Cutout: ±12.5% (203 - 257 VAC)

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Contents
GE Kaye World Headquarters Table of Contents General Operation Parts and ControlsController Operation Digital Communication Interface Maintenance Trouble ShootingWiring Diagram Figures Tables Before You Start Symbols UsedCanadian Standards Association Safety InformationBurn Hazard Bath Fluids Cold Baths World Headquarters Customer Service InformationIntroduction Environmental Conditions SpecificationsInstrument Warranty Hardware Warranty and AssistanceIn-Warranty Repairs After-Warranty RepairsCustomer Support Equipment Maintenance AgreementsCustomer Support Agreement Customer Site AssistanceUnpacking Quick StartSet-up Setting the Temperature PowerAccess set-point selection Set-point 1, 25.0C currently used Drain Valve Installation Instructions InstallationBath Environment Dry-out PeriodFilling With Fluid Necessary Comparison Calibration GeneralBath Use Calibration of Multiple Probes Control Panel Parts and ControlsBack Panel Bath Tank and LidBack Panel General Operation Temperature RangeBath Fluid ViscosityThermal Conductivity SafetyThermal Expansion Electrical ResistivityCommonly Used Fluids CostWater Distilled EthanolMineral Oil Fluid Characteristics TableSilicone Oil Dow Corning 200.05, 200.10 Table of Various Bath Fluids Limitations and DisclaimerHeater StirringRefrigeration Operation Temperature ControllerImportant Refrigerant Information General Operation Temperature Set-point Bath TemperatureController Operation Programmable Set-pointsDisplay Temperature Set-point Value Temperature Scale UnitsScan Control ScanScan Rate Secondary Menu Heater PowerProportional Band New proportional band setting CO= 80C CutoutOperating Parameters Controller ConfigurationHigh Limit Low LimitCooling Serial Interface ParametersBaud Rate Duplex ModeSample Period Linefeed Calibration Parameters11.2 R0 Hard CutoutAlpha DeltaSerial Communications Digital Communication InterfaceSetup WiringRS-232 Cable Wiring for IBM PC and CompatiblesDuplex Mode Interface CommandsSerial Operation Sample PeriodSecondary Menu Lfeed=on Lf=on Calibration Procedure Calibration ProcedureCalibration Equipment CalibrationCalibration Procedure Maintenance Maintenance Troubleshooting Trouble ShootingCE Comments Low Voltage Directive SafetyEMC Directive Revisions Wiring Diagram
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