Omega CL26, CL24, CL25, CL27, CL23A manual Keypad

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Figure 2. Keypad

Figure 3. Display Test

If the unit is turning on for the first time after a new battery is installed, it will automatically default to the METER mode (ie. temperature measurement operation). It also defaults to K-type thermocouples, and °F readings with 0.1° resolution. The corresponding LCD annunciators are enabled:

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Contents
User’sGuide Omega.comTM Table of Contents Common Specifications General InformationTemperature Coefficient Page Model CL24 Unique SpecificationsModel CL23A/CL23EC Model CL25/CL25ECModel CL27/CL27EC FeaturesManual Addenda Unpacking Your Unit Safety InformationSafety Precautions Page Battery INSTALLATION/REPLACEMENT Battery InstallationMemory Backup Operation with Rechargeable BatteryOperating Instructions Diagnostics and Error MessagesProblem Likely Cause Initial Turn onKeypad Meter Mode Operation Thermocouples Set-Up OPRMeter Mode Operation RTD, Thermistor & Ohms Set-Up HoldData Logging and Recall To Save Readings To Recall ReadingsTo Erase Data Locations Meter Mode Calibrator Mode Operation Thermocouples Set-UpCalibrator Mode Operation RTD, Thermistor & Ohms Set-Up CHANGE/ENTER, 2, 1, 2, 0, CHANGE/ENTERWire Resistance Simulation Storage and Recall of Calibrator Settings To Store OutputsTo Erase Set-Up Locations Calibrator Mode To Recall OutputsStep Function Ramp Function CL25 and CL27Thermocouple Calibration Test Equipment Required Service InformationCalibration Procedures Ambient ConditionsPage Calibration Adjustments Calibrator-Mode Zero & Gain Adjustments Sensor Meter-Mode Zero & Gain Adjustments Sensor StepInput Adjust Reading Output Adjust ReadingCalibration Setup, Copper Mode Resistance Calibration Test Equipment RequiredResistance Calibration Setup RTD-100 390.26Ω Calibration of Meter-Mode Resistance Functions Output Input Adjust Verify ReadingInput Adjust Verify Reading RTD-Thermistor Sensor Unit StepCalibration Verification Model Software Revision Equipment RequiredPage Page Alloy Mode Verification Procedure for Thermocouple Functions Page Mechanical Parts Diagram Calibration Procedures Page Page Page USAWARRANTY/DISCLAIMER Temperature