Omega 24, 27 To Erase Data Locations Meter Mode, Calibrator Mode Operation Thermocouples Set-Up

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eg. RECALL 3 eg. RECALL 5 eg. RECALL 2 eg. etc.

4.To return the meter to the operate mode, depress OPR after recalling the last reading. All active location annunciators will turn on again, together with the OPR annunciator.

NOTE: Recalling data from unused (ie, empty) locations will give a zero reading.

To Erase Data Locations (Meter Mode):

1.Individual data locations can be erased by recalling the location to be cleared, followed by a CLEAR key input. Note that the annunciator for the cleared location is turned off, and the meter returns to OPR.

eg. RECALL 3 eg. CLEAR

NOTES: There is no need to clear a location if new data is ready for saving in this location. Just STORE the new data. It will write over and delete the old.

6.CALIBRATOR MODE OPERATION (Thermocouples) Set-Up:

1.Turn on the instrument by depressing the ON/OFF key.

2.Check that the BAT annunciator turns off after display check. If not, refer to Battery Installation/Replacement instructions.

3.When operating as a calibrator, the display indicates CALIB. Should the instrument be in the METER mode, hit the CALIB key to change to the cal- ibrator function.

4.Select the thermocouple type that will be used.

NOTE: Space and legibility constraints on the display preclude the use of dedicated annunciators for the less common tungsten- rhenium thermocouple types (G, C, & D). Instead, these types are annunciated momentarily on the alpha-numeric display when first selected. Both T and R annunciators remain on to indicate a Tungsten-Rhenium selection. To recall the actual G, C, D selec- tion, turn the unit off, then on again for another momentary read- out.

5. Select the desired temperature scale (°F/°C key).

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Contents CL23A, 24, 25, 26 Omega.comTM Table of Contents General Information Common SpecificationsTemperature Coefficient Page Model CL25/CL25EC Unique SpecificationsModel CL23A/CL23EC Model CL24Manual Addenda FeaturesModel CL27/CL27EC Safety Precautions Safety InformationUnpacking Your Unit Page Battery Installation Battery INSTALLATION/REPLACEMENTOperation with Rechargeable Battery Memory BackupInitial Turn on Diagnostics and Error MessagesProblem Likely Cause Operating InstructionsKeypad 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 FunctionAmbient Conditions Service InformationCalibration Procedures Thermocouple Calibration Test Equipment RequiredPage Calibration Adjustments Output Adjust Reading Meter-Mode Zero & Gain Adjustments Sensor StepInput Adjust Reading Calibrator-Mode Zero & Gain Adjustments SensorCalibration Setup, Copper Mode Test Equipment Required Resistance CalibrationResistance Calibration Setup Calibration Adjustments RTD-Thermistor Sensor Unit Step Output Input Adjust Verify ReadingInput Adjust Verify Reading Calibration of Meter-Mode Resistance FunctionsCalibration 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