Omega 25, 26, 24 manual Features, Manual Addenda, Model CL27/CL27EC

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ACCURACY: (18°C to 28°C ambient, 2 years): ±0.5 °F (rdg –50°F). ±0.04% rdg (rdg > 1250°F) ±1.0°F (rdg < –50°F) OHMS; ±0.04% range

TEMPERATURE COEFFICIENT: 18°C to 28°C; included in accuracy specifications. From 0°C to 18°C, and 28°C to 50°C.

K, J, T, E; ±(0.006% rdg + 0.03°C)/°C

RTD, THERMISTOR, OHMS; ±(0.006% rdg +0.012% rng)/°C

RAMP FUNCTION: Not Included.

MODEL CL27/CL27EC:

SENSOR SELECTION: K, J, T, E, N, B, R, S, G, C, D/K, J, T, E, N, B, R, S, L, C,

D Thermocouples

100Ω /1000Ω Platinum RTD

1,000Ω /10,000Ω Resistance

RAMP FUNCTION: Included.

FEATURES

Combination calibrator, thermometer and datalogger.

Function selection and numeric data entered via 12 keyswitch color coded keypad.

Keyswitches have tactile feedback.

5 digit LCD includes annunciators for operating modes.

Up to 11 thermocouple types, 2 RTD types, and thermistor.

1° or 0.1° resolution over temperature range of each sensor.

°F and °C scales.

Reading hold mode.

10 memory locations for saving meter readings and/or calibrator outputs.

Step mode for quick sequential recall of calibrator outputs from memory.

Manual/automatic ramping for testing controller setpoints.

Conforms to ITS-90 thermocouple tables.

Dust proof, splash proof, drop proof construction.

Built-in tilt stand/hanger for bench use or hands free field measurements.

User friendly programming.

Retains data and programming, even when turned off.

Performs diagnostic tests and indicates fault conditions.

Low battery and open sensor indications.

MANUAL ADDENDA

Improvements or changes to this manual will be explained on an addendum included with the instrument. All change information should be incorporated immediately into the appropriate places in the manual.

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Contents CL23A, 24, 25, 26 Omega.comTM Table of Contents Common Specifications General InformationTemperature Coefficient Page Unique Specifications Model CL23A/CL23ECModel CL24 Model CL25/CL25ECModel CL27/CL27EC FeaturesManual Addenda Unpacking Your Unit Safety InformationSafety Precautions Page Battery INSTALLATION/REPLACEMENT Battery InstallationMemory Backup Operation with Rechargeable BatteryDiagnostics and Error Messages Problem Likely CauseOperating Instructions 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 CL27Service Information Calibration ProceduresThermocouple Calibration Test Equipment Required Ambient ConditionsPage Calibration Adjustments Meter-Mode Zero & Gain Adjustments Sensor Step Input Adjust ReadingCalibrator-Mode Zero & Gain Adjustments Sensor Output Adjust ReadingCalibration Setup, Copper Mode Resistance Calibration Test Equipment RequiredResistance Calibration Setup Calibration Adjustments Output Input Adjust Verify Reading Input Adjust Verify ReadingCalibration of Meter-Mode Resistance Functions 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