GE CTR 80 manual Bath Fluids

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1 Before You Start

•High voltage is used in the operation of this equipment. Severe injury or death may result if personnel fail to observe the safety precautions. Before working inside the equipment, turn off the power and disconnect the power cord.

BATH FLUIDS

•Fluids used in this unit may produce noxious or toxic fumes under certain circumstances. Consult the fluid manufacturer’s MSDS (Material Safety Data Sheet). Proper ventilation and safety precautions must be observed.

•The instrument is equipped with a soft cutout (user settable firmware) and a hard cutout (set at the factory). Check the flash point, boiling point, or other fluid characteristic applicable to the circumstances of the unit opera- tion. Ensure that the soft cutout is adjusted to the fluid characteristics of the application. As a guideline, the soft cutout should be set 10°C to 15°C below the flash point of the bath fluid. See Section , Heat Transfer Fluid, for specific information on bath fluids and Section , Cutout.

1.2.2

Cautions

•THE DRAIN VALVE MUST BE INSTALLED ON THE BACK OF THE BATH BEFORE ATTEMPTING TO FILL THE TANK WITH FLUID. See Section 5.3, page 17 for drain installation instructions.

•Always operate this instrument at room temperature between 41°F and 122°F (5°C to 50°C). Allow sufficient air circulation by leaving at least 6 inches (15 cm) of clearance around the instrument.

•DO NOT overfill the bath. Overflowing liquid may damage the electrical system. Be sure to allow for thermal expansion of the fluid as the bath temperature increases. See Section 5.3, Bath Preparation and Filling, for specific instructions.

•DO NOT change the values of the bath calibration constants from the fac- tory set values. The correct setting of these parameters is important to the safety and proper operation of the unit.

•The refrigeration may be damaged or the lifetime shortened if the set-point temperature is set above 60°C for more than one hour with the refrigeration manually on. Ensure that the refrigeration is off when the unit is used above 60°C.

•The Factory Reset Sequence should be performed only by authorized personnel if no other action is successful in correcting a malfunction. You must have a copy of the most recent Report of Test to restore the test pa- rameters.

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Contents
GE Kaye World Headquarters Table of Contents Parts and Controls General OperationController Operation Maintenance Trouble Shooting Digital Communication InterfaceWiring Diagram Figures Tables Symbols Used Before You StartSafety Information Canadian Standards AssociationBurn Hazard Bath Fluids Cold Baths Customer Service Information World HeadquartersIntroduction Specifications Environmental ConditionsHardware Warranty and Assistance Instrument WarrantyIn-Warranty Repairs After-Warranty RepairsEquipment Maintenance Agreements Customer SupportCustomer Support Agreement Customer Site AssistanceQuick Start UnpackingSet-up Power Setting the TemperatureAccess set-point selection Set-point 1, 25.0C currently used Installation Drain Valve Installation InstructionsBath Environment Dry-out PeriodFilling With Fluid Necessary General Comparison CalibrationBath Use Calibration of Multiple Probes Parts and Controls Control PanelBath Tank and Lid Back PanelBack Panel Temperature Range General OperationBath Fluid ViscositySafety Thermal ConductivityThermal Expansion Electrical ResistivityCost Commonly Used FluidsWater Distilled EthanolFluid Characteristics Table Mineral OilSilicone Oil Dow Corning 200.05, 200.10 Limitations and Disclaimer Table of Various Bath FluidsStirring HeaterRefrigeration Temperature Controller OperationImportant Refrigerant Information General Operation Bath Temperature Temperature Set-pointController Operation Programmable Set-pointsDisplay Temperature Temperature Scale Units Set-point ValueScan Scan ControlScan Rate Heater Power Secondary MenuProportional Band New proportional band setting Cutout CO= 80CController Configuration Operating ParametersHigh Limit Low LimitSerial Interface Parameters CoolingDuplex Mode Baud RateSample Period Calibration Parameters LinefeedHard Cutout 11.2 R0Alpha DeltaDigital Communication Interface Serial CommunicationsWiring SetupRS-232 Cable Wiring for IBM PC and CompatiblesInterface Commands Duplex ModeSerial Operation Sample PeriodSecondary Menu Lfeed=on Lf=on Calibration Procedure Calibration ProcedureCalibration Equipment CalibrationCalibration Procedure Maintenance Maintenance Trouble Shooting TroubleshootingLow Voltage Directive Safety CE CommentsEMC Directive Wiring Diagram Revisions
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