B. RESISTANCE CALIBRATION

NOTE: Thermocouple and resistance calibrations are indepen- dent. However, potentiometer P1 is used in both thermocouple and resistance calibrations to set EEPROM constants. Follow cal- ibration procedures carefully to ensure that thermocouple and resistance calibrations do not disturb one another.

Test Equipment Required:

1.Resistance Decades (General Resistance RTD-100, RTD-500/1000, and RDS-54, or equivalent).

2.Current Source (Fluke 5101B, or equivalent).

3.Digital Multimeter (OMEGA OM7551, or equivalent).

4.Calibration cables per Figure 14.

Ambient Conditions:

Unit should be calibrated at an ambient temperature of 23°C±1°C, with rela- tive humidity less than 80%.

Preparation For Calibration:

1.Turn off unit, and remove bottom-cover. Refer to Disassembly Instructions.

2.Secure battery with a piece of adhesive tape.

NOTE: Momentary loss of battery power during the following cal- ibration will invalidate previous adjustments, both resistance and thermocouple.

3.Hook up test-equipment and unit per Figure 14.

4.Set current-source to 1mA, STANDBY mode.

5.Set DMM to 2V DC range.

6.Turn on unit.

7.Set unit to METER mode, RTD-100, °F.

8.Turn off unit. Remove jumper J1. Turn on unit. 'RTD' annunciator should be flashing.

NOTES: Flashing 'RTD' indicates that calibration adjustments will be written to memory. Avoid selecting thermocouple functions while in this mode.

NOTES: Should it be necessary to scroll through thermocouple functions, first hit the OPR key (disables flashing 'RTD'), and start again at Step 7 above.

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Omega CL24, CL25, CL27, CL23A, CL26 manual Resistance Calibration, Test Equipment Required
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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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