GE CTR 80 manual Maintenance

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12 Maintenance

tomer Service to be sure that the proposed method will not damage the equipment.

•The condensing coil should be cleaned regularly. Inspect the coil through the vented rear panel. If any dust or dirt accumulation is visible, remove the rear panel to clean out the dust or dirt. Use a vacuum with a brush to remove the dirt. Do not use compressed air as it might drive the dirt be- tween the fins where it may become lodged preventing airflow.

•If the instrument is used in a manner not in accordance with the equip- ment design, the operation of the bath may be impaired or safety hazards may arise.

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Contents

GE Kaye World Headquarters Table of Contents General Operation Parts and ControlsController 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 ConditionsIn-Warranty Repairs Hardware Warranty and AssistanceInstrument Warranty After-Warranty RepairsCustomer Support Agreement Equipment Maintenance AgreementsCustomer Support Customer Site AssistanceUnpacking Quick StartSet-up Power Setting the TemperatureAccess set-point selection Set-point 1, 25.0C currently used Bath Environment InstallationDrain Valve Installation Instructions Dry-out PeriodFilling With Fluid Necessary Comparison Calibration GeneralBath Use Calibration of Multiple Probes Parts and Controls Control PanelBath Tank and Lid Back PanelBack Panel Bath Fluid Temperature RangeGeneral Operation ViscosityThermal Expansion SafetyThermal Conductivity Electrical ResistivityWater Distilled CostCommonly Used Fluids EthanolMineral Oil Fluid Characteristics TableSilicone Oil Dow Corning 200.05, 200.10 Limitations and Disclaimer Table of Various Bath FluidsHeater StirringRefrigeration Operation Temperature ControllerImportant Refrigerant Information General Operation Controller Operation Bath TemperatureTemperature Set-point Programmable Set-pointsDisplay Temperature Temperature Scale Units Set-point ValueScan Control ScanScan Rate Secondary Menu Heater PowerProportional Band New proportional band setting Cutout CO= 80CHigh Limit Controller ConfigurationOperating Parameters Low LimitSerial Interface Parameters CoolingBaud Rate Duplex ModeSample Period Calibration Parameters LinefeedAlpha Hard Cutout11.2 R0 DeltaDigital Communication Interface Serial CommunicationsRS-232 Cable Wiring for WiringSetup IBM PC and CompatiblesSerial Operation Interface CommandsDuplex Mode Sample PeriodSecondary Menu Lfeed=on Lf=on Calibration Equipment Calibration ProcedureCalibration Procedure CalibrationCalibration Procedure Maintenance Maintenance Trouble Shooting TroubleshootingCE Comments Low Voltage Directive SafetyEMC Directive Wiring Diagram Revisions