GE CTR 80 manual Parts and Controls, Control Panel

Page 27

7 Parts and Controls

7 Parts and Controls

7.1Control Panel

The following controls and indicators are present on the controller front panel (see Figure 2 below): (1) the digital LED display, (2) the control buttons, (3) the on/off power switch, (4) the heater mode light, and (5) the cooling on/off switch.

1)The digital display is an important part of the temperature controller. It displays the set-point temperature and bath temperature as well as the various other bath functions, settings, and constants. The display shows temperatures according to the selected scale units °C or °F.

2)The control buttons (SET, DOWN, UP, and EXIT) are used to set the bath temperature set-point, access and set other operating parameters, and access and set bath calibration parameters. A brief description of the functions of the buttons follows:

SET - Used to display the next parameter in a menu and to set parame- ters to the displayed value.

DOWN - Used to decrement the displayed value of parameters. UP - Used to increment the displayed value.

EXIT - Used to exit from a menu. When EXIT is pressed any changes made to the displayed value will be ignored.

3)The on/off switch controls power to the entire bath including the stir- ring motor.

Heater-80.00 C	1
Heater-80.00 C	I
4	Cooling
Smoke Dead Display Window	5
	5
Mode
Set Down UpExit

O

CTR –80

Power

3

I

O

2

Figure 2 CTR-80 Control Panel

23

Image 27

Contents

GE Kaye World Headquarters Table of Contents Parts and Controls General OperationController 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 SpecificationsAfter-Warranty Repairs Hardware Warranty and AssistanceInstrument Warranty In-Warranty RepairsCustomer Site Assistance Equipment Maintenance AgreementsCustomer Support Customer Support AgreementQuick Start UnpackingSet-up Setting the Temperature PowerAccess set-point selection Set-point 1, 25.0C currently used Dry-out Period InstallationDrain Valve Installation Instructions Bath Environment Filling With Fluid Necessary General Comparison CalibrationBath Use Calibration of Multiple Probes Control Panel Parts and ControlsBack Panel Bath Tank and LidBack Panel Viscosity Temperature RangeGeneral Operation Bath FluidElectrical Resistivity SafetyThermal Conductivity Thermal ExpansionEthanol CostCommonly Used Fluids Water DistilledFluid Characteristics Table Mineral OilSilicone Oil Dow Corning 200.05, 200.10 Table of Various Bath Fluids Limitations and DisclaimerStirring HeaterRefrigeration Temperature Controller OperationImportant Refrigerant Information General Operation Programmable Set-points Bath TemperatureTemperature Set-point Controller OperationDisplay Temperature Set-point Value Temperature Scale UnitsScan Scan ControlScan Rate Heater Power Secondary MenuProportional Band New proportional band setting CO= 80C CutoutLow Limit Controller ConfigurationOperating Parameters High LimitCooling Serial Interface ParametersDuplex Mode Baud RateSample Period Linefeed Calibration ParametersDelta Hard Cutout11.2 R0 AlphaSerial Communications Digital Communication InterfaceIBM PC and Compatibles WiringSetup RS-232 Cable Wiring forSample Period Interface CommandsDuplex Mode Serial OperationSecondary Menu Lfeed=on Lf=on Calibration Calibration ProcedureCalibration Procedure Calibration EquipmentCalibration Procedure Maintenance Maintenance Troubleshooting Trouble ShootingLow Voltage Directive Safety CE CommentsEMC Directive Revisions Wiring Diagram