Omega 25, 27, 26, 24 manual Wire Resistance Simulation

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mA (current) source	Calibrator (out)		Thermometer (in)
	Calibrator (out)		Thermometer (in)


					I out


					V out

Figure 8. 2-Wire Resistance Simulation

Figure 9. 3-Wire Resistance Simulation

GRN

RED

BLK

WHT

NOTE: Colors indicated apply to

Model 84937 Calibration Cable.

Figure 10. 4-Wire Resistance Simulation

19

Image 21

Contents CL23A, 24, 25, 26 Omega.comTM Table of Contents General Information Common SpecificationsTemperature Coefficient Page Model CL23A/CL23EC Unique SpecificationsModel CL24 Model CL25/CL25ECFeatures Manual AddendaModel CL27/CL27EC Safety Information Safety PrecautionsUnpacking Your Unit Page Battery Installation Battery INSTALLATION/REPLACEMENTOperation with Rechargeable Battery Memory BackupProblem Likely Cause Diagnostics and Error MessagesOperating Instructions Initial Turn onKeypad OPR Meter Mode Operation Thermocouples Set-UpHold Meter Mode Operation RTD, Thermistor & Ohms Set-UpData Logging and Recall To Recall Readings To Save ReadingsCalibrator Mode Operation Thermocouples Set-Up To Erase Data Locations Meter ModeCHANGE/ENTER, 2, 1, 2, 0, CHANGE/ENTER Calibrator Mode Operation RTD, Thermistor & Ohms Set-UpWire Resistance Simulation To Store Outputs Storage and Recall of Calibrator SettingsTo Recall Outputs To Erase Set-Up Locations Calibrator ModeRamp Function CL25 and CL27 Step FunctionCalibration Procedures Service InformationThermocouple Calibration Test Equipment Required Ambient ConditionsPage Calibration Adjustments Input Adjust Reading Meter-Mode Zero & Gain Adjustments Sensor StepCalibrator-Mode Zero & Gain Adjustments Sensor Output Adjust ReadingCalibration Setup, Copper Mode Test Equipment Required Resistance CalibrationResistance Calibration Setup Calibration Adjustments Input Adjust Verify Reading Output Input Adjust Verify ReadingCalibration of Meter-Mode Resistance Functions RTD-Thermistor Sensor Unit StepCalibration Verification Equipment Required Model Software RevisionPage Page Alloy Mode Verification Procedure for Thermocouple Functions Page Mechanical Parts Diagram Calibration Procedures Page Page Page Page Page USAWARRANTY/DISCLAIMER Temperature