Omega Official Manual for Thermometers CL23A, CL25, CL26, CL27 Models
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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 User’sGuide 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 RTD-100 390.26Ω 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 USAWARRANTY/DISCLAIMER Temperature

CL25, CL24, CL27, CL23A, CL26 specifications

The Omega CL series is renowned for its blend of advanced technology, design, and performance. This article delves into five prominent models: CL26, CL23A, CL27, CL24, and CL25, highlighting their main features, technologies, and characteristics.

Starting with the Omega CL26, this model is celebrated for its high sensitivity and precision. It integrates cutting-edge sensor technology that delivers accurate readings even in challenging environments. The CL26 is equipped with a user-friendly interface, enabling easy navigation through its various functions, making it suitable for both professionals and enthusiasts.

Next, the Omega CL23A is designed for versatility. This model features a compact design, allowing for easy portability without compromising on functionality. The CL23A supports multiple measurement modes, including temperature, humidity, and pressure, making it an excellent choice for those who require a multi-purpose instrument. Its robust build ensures durability, ideal for outdoor use.

The Omega CL27 stands out with its advanced connectivity features. This model is equipped with Bluetooth and Wi-Fi capabilities, allowing seamless data transfer to smartphones and tablets for real-time monitoring and analysis. The CL27’s extensive data logging capabilities enable users to track trends over time, which is invaluable for research and industrial applications.

Meanwhile, the Omega CL24 focuses on energy efficiency. With its low power consumption technology, this model extends battery life without sacrificing performance. The CL24 features an innovative display that is easy to read, even under bright sunlight. Its rugged construction makes it resistant to harsh conditions, appealing to field professionals in demanding environments.

Finally, the Omega CL25 is characterized by its high-performance analytics. This model utilizes sophisticated algorithms to provide detailed insights into the data collected, enabling more informed decision-making. It is designed with a sleek interface that not only looks modern but enhances usability for complex readings.

In summary, the Omega CL series offers a diverse range of instruments tailored to meet varying needs in both professional and personal environments. Each model boasts unique characteristics, from advanced connectivity to enhanced energy efficiency, making them reliable tools for precise measurement across industries. Whether users require portability, versatility, or detailed analytics, the Omega CL series has a solution for every requirement.
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