Omega 26, 27, 25, 24 manual

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WARNING

Do not touch a temperature probe sheath when measuring excessively high or low temperatures, or toxic substances.

WARNING

Do not attempt to measure temperatures beyond the range of the probe being used. Probe damage or personal injury could result from exceeding a probe's maximum temperature rating.

WARNING

The American National Safety Institute (ANSI) states that a shock hazard exists when probes or sensors are exposed to voltage levels greater than 42VDC or 42V peak AC. Do not use this instrument where voltages at the measurement sur- face exceed these levels.

WARNING

Do not substitute a metal part for the nylon screw in the rear case. Doing so will degrade electrical isolation of the case.

WARNING

The battery is accessible through a cover on the back of the instrument. To avoid electrical shock hazard, disconnect all temperature probes and sensors and turn the unit off before removing the cover.

WARNING

Never use this instrument or any probe or sensor inside a microwave oven.

CAUTION

Avoid making sharp bends in probe or sensor lead wires. Bending lead wires at a sharp angle can damage the wire causing probe failure.

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Contents CL23A, 24, 25, 26 Omega.comTM Table of Contents Common Specifications General InformationTemperature Coefficient Page Model CL24 Unique SpecificationsModel CL23A/CL23EC Model CL25/CL25ECManual Addenda FeaturesModel CL27/CL27EC Safety Precautions Safety InformationUnpacking Your Unit 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 Calibration Adjustments 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 Page Page USAWARRANTY/DISCLAIMER Temperature