Omega CL25, CL24, CL27, CL23A, CL26 manual Battery INSTALLATION/REPLACEMENT, Battery Installation

Page 11

CAUTION

Keep inputs electrically isolated from outputs. Do not con- nect an external voltage source between the two connectors, and avoid any external electrical pathways between input and output (T2 & T1).

Failure to do so will disturb meter readings and calibrator output levels. Damage to the instrument is also possible.

Where the meter and calibrator connectors are simultane- ously wired into a system lacking the above isolation, it is necessary to use an "ungrounded" (i.e. electrically isolated) probe at the thermometer input.

BATTERY INSTALLATION/REPLACEMENT

A 9V alkaline battery is supplied with the instrument but not installed. Read the following installation instructions before attempting to install or remove the battery. Replacement batteries should also be alkaline types.

WARNING

Turn the unit off and disconnect any input/output connec- tions before replacing the battery. Put the cover back into place on the battery compartment before resuming use of the instrument.

1.Remove the cover from the battery compartment by sliding it off in the direction of the arrow located on the battery cover.

Figure 1. Battery Installation

9

Image 11 Contents
User’sGuide Omega.comTM Table of Contents General Information Common SpecificationsTemperature Coefficient Page Model CL25/CL25EC Unique SpecificationsModel CL23A/CL23EC Model CL24Model CL27/CL27EC FeaturesManual Addenda Unpacking Your Unit Safety InformationSafety Precautions 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 RTD-100 390.26Ω 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 USAWARRANTY/DISCLAIMER Temperature