GE CTR 80 manual Specifications, Environmental Conditions

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			3 Specifications and Environmental Conditions
3	Specifications and Environmental Conditions
3.1	Specifications

	Range	–80°C to 100°C
		(–112°F to 212°F)
	Ambient Operating Range	15°C to 25°C
		(59°F to 77°F)
	Stability	±0.006°C at –80°C (ethanol)
		±0.010°C at 0°C (ethanol)
		±0.010°C at 100°C (oil)
	Uniformity	±0.008°C at –80°C (ethanol)
		±0.012°C at 0°C (ethanol)
		±0.012°C at 100°C (oil)
	Set-Point Accuracy	±0.5°C
	Set-Point Repeatability	±0.01°C
	Resolution	0.01°
	Access Opening	3.25" x 4.5" (86 x 114 mm)
	Immersion Depth	7" (180 mm) max
	Tank Capacity	1 gallon (4 liters)
	Cooling Time	From 25°C to –80°C,
		130 minutes
	Refrigeration Cascade	Two ¼ HP compressors
	Heater Power	500 W
	Automation Package	Interface-itsoftware and RS-232 included
	Power	115 VAC (±10%), 60 Hz, 16 A or 230 VAC (±10%), 50 Hz, 8 A, specify,
		1700 W
	Size	12" W x 30" H x 24" D
		(305 x 762 x 610 mm)
	Weight	115 lb. (52 kg)

3.2Environmental 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 be operated in an excessively dusty or dirty environment. Maintenance and clean- ing recommendations can be found in the Maintenance Section of this manual.

The instrument operates safely under the following conditions:

•temperature range: 15–30°C (59–86°F)

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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 ConditionsHardware Warranty and Assistance Instrument WarrantyIn-Warranty Repairs After-Warranty RepairsEquipment Maintenance Agreements Customer SupportCustomer Support Agreement Customer Site AssistanceUnpacking Quick StartSet-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 Comparison Calibration GeneralBath 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 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 Bath Temperature Temperature Set-pointController Operation Programmable Set-pointsDisplay Temperature Temperature Scale Units Set-point ValueScan Control ScanScan Rate Secondary Menu Heater PowerProportional Band New proportional band setting Cutout CO= 80CController Configuration Operating ParametersHigh Limit Low LimitSerial Interface Parameters CoolingBaud Rate Duplex ModeSample 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 TroubleshootingCE Comments Low Voltage Directive SafetyEMC Directive Wiring Diagram Revisions