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CL940-Series

500 Hour Thermocouple Calibrator with 0.01 ° Resolution

Calibrateur de thermocouple de 500 heures avec une résolution de 0,01 °
Models In Stock
  • Handheld Thermocouple Calibrator with ± 5 µV accuracy
  • Resolution: 0.01°
  • 10x Battery Life
  • Simultaneous Source / Measure
CL940-Series
From C$ 2,230.83
Models In Stock
Calibrateur de thermocouple de 500 heures avec une résolution de 0,01 ° CL940-Series CL940-Series
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Product Overview
  • Additional Features 1 Read and Source Signals
  • Auto Off 20 min
  • Auto Off Note 20 minute no key pressed Auto Off. Feature can be disabled
  • Battery Indication 4 stage battery charge indication
  • Battery life 500 hr
  • Cold Junction Error ± 0.15 °C
  • Common Mode Voltage 42 V
  • Common Mode Voltage (CJC error), Max 1 V
  • Common Mode Voltage Note 42 V peak to earth; 1 V p-p between T1 and T2
  • Dimensions (CJC error) 7.6 L x 3.3 W x 1.1 H in
  • Display Backlight Four (4) LED Backlight with 30-second timeout
  • Display Measuring Units °C, °F, mV
  • Display Resolution 0.01°
  • Display Resolution (CJC error) 0.1°
  • Display Type Backlit LCD
  • Display Type Note 5-DIGIT AUTO-RESOLUTION (0.1/0.01) WITH BACKLIGHT AND FUNCTION ANNUNCIATORS Two (2) rows of Five (5) digit LCD with separate minus sign, decimal indicators, with offset, thermocouple types KJTEBNRSGCDPLU, battery, source, read, temperature units, voltage units, percent, trend, PRST (0-19), MIN, MAX, AVG, RNG, STDEV, Transfer, symbols: Fast Ramp, Slow Ramp, Step, Bluetooth
  • Electrical Connection Miniature Female Thermocouple Connector
  • Electrical Safety IEC-61010
  • EMC Standard Class 2, EN 61326, MIL-PRF-28800F
  • ESD Standard IEC 61326 Criterion B
  • Height 28 mm
  • Input Current ± 50 nA
  • Internal Preset Storage 20 user defined presets available
  • Keypad 12 Switches
  • Length 193 mm
  • Low Resistance Load Less than 5µV change in output with a 100KΩ resistance
  • Millivolt Range -15 to 85 mV
  • Operating Environment Altitude: 0 to 4600 m ; 0 to 15,092 ft(CJC Error) Vibration: Random 10 – 500 Hz; 0.03 g2/Hz(CJC Error) Shock: 30g Half Sine Drop: 4 Drops from 1 m to Concrete
  • Operating Temperature, Max 55 °C
  • Operating Temperature, Min -20 °C
  • Operating Temperature Note Operating Temperature(CJC error): -4 to 131°F
  • Power Cycle Configuration Retention Instrument retains: Sensor Type, Temperature Unit Offset Values, Presets, Statistics, Open Lead detection status, 0%/100% span settings, and operating mode
  • Probe Offset Uncertainty Resolution 0.1 °C/°F
  • Reading Rate 3/sec
  • Reading Rate Note 3/sec. for Readings and TREND indicators
  • Relative Humidity, Max 0.95
  • Relative Humidity, Min 5%
  • Relative Humidity Note <10 °C (50 °F): Non-condensing 10 to 30 °C (50 to 86 °F): 5 to 95% RH 30 to 40 °C (86 to 104 °F): 5 to 85% RH 40°C to 55°C (104 to 131 °F): 5 to 60% RH
  • Resolution, Max 999.99 °C
  • Resolution, Min 0.01 °C
  • Resolution Note 0.01°C UP TO 999.99°C AND 0.1°C ≥ 1000°C
  • Sanitation NSF, ANSI/3-1 14159-2
  • Statistics Average, Maximum, Minimum, Range, Standard Deviation
  • Storage Temperature, Max 71 °C
  • Storage Temperature, Min -51 °C
  • Storage Temperature Note Storage Temperature(CJC error): -59.8 to 159.8°F
  • Supply Voltage 4.5 Vdc
  • Temperature Coefficient For specification variances due to ambient operating temperature, see the Expanded Instrument Uncertainty charts in Appendix B of this manual. For ambient operating temperatures not shown in Appendix B, accuracies shall be interpolated linearly.
  • Weight 362.9 g
  • Weight (CJC error) 12.8 oz (including batteries)
  • Weight Note 362.9g (including batteries)
  • Width 84 mm

The OMEGA CL940 series thermocouple calibrator simulate, measure and record thermocouple. It Surpasses any device in the market the competition in the lab and on the factory floor with ± 0.003% (Rdg) ± 5 µV accuracy and in ambient temperatures from 18 to 28°C (64 to 82°F).
This powerful handheld calibrator/meter allows the user to calibrate in the field as well as in the lab and offers many additional functions that translate into cost-effectiveness, improved efficiency, and long-lasting adaptability and dependability. OMEGA has rethought temperature calibrators to offer you the performance you need today without complicating your work. The new 940 Series provides laboratory grade calibrations in a highly portable package that goes to the work-site with ease. Industries that measure temperature are being pushed to achieve better results for both quality and product safety. OMEGA has responded by designing an instrument that leads its class in terms of accuracy, battery life, convenience and ease of use.
When you endeavor out into the field or plant to perform service work, you need a durable tool that you can count on. OMEGA has over 40 years of experience building handheld instruments for challenging environments. That’s why we designed the 940 series to meet MIL-PRF-28800F for shock, drop and vibration tests. The keypad is a sealed design that rejects fluids and dirt without compromising tactile feedback. No matter how valuable the tool is, it is useless with dead batteries. We gave the 940 Series extraordinary 10X battery life of its competitors with 3 AA batteries so that you aren’t disappointed in the field.
More rigorous calibration requirements drive the need for better tools. Tighter process controls and quality standards mean your old calibrator doesn’t measure up anymore. OMEGA has designed the most accurate calibrator in a portable package. While it is tough to recreate the temperature controlled atmosphere that a lab provides, you can use a device that delivers laboratory grade precision with clear specs that let you determine the exact level of field performance you do achieve. OMEGA’s new 940 Series calibrators compensate for the ambient temperature. It will allow you to perform calibrations with confidence in diverse conditions.
A competent instrument can often imply intricacy. OMEGA engineers appreciated the simplicity and designed the 940 Series to be easier to use. Our goal was to make the operator productive when they first picked up the instrument. With one key, the user can perform a 10% / 90% calibration without understanding the manual. Another key increment 0%/25%/50%/75%/100% for rapid 5 point checks. Setting any specific temperature is equally comfortable as are step and ramp modes.
The 940 Series calibrators are designed, assembled and tested in the United States. OMEGA backs this durable instrument with a standard 2–year warranty to assure you that your investment is sound.

Rated 5 out of 5 by from great product, needs accessories great use for our purpose, If they have included male to male extension for the TC calibration it would have been great.
Date published: 2024-04-29
Rated 4 out of 5 by from Works as we need it to. A bit too expensive Tool works great. Meets our needs although requires a capacitor the older model didn’t to calibrate multiple zones at once.
Date published: 2023-05-08
Rated 5 out of 5 by from Director Very reliable and trustable , have been working with Omega for two decades
Date published: 2023-04-11
Rated 4 out of 5 by from CL 940 review Excellent unit, but wish it had a rubberized protective grip case like our CL25 does
Date published: 2020-09-28
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Can this device be used as a thermometer as well as a calibrator, like the CL23A ?

Asked by: DanTheMan
Hi Dan, Yes this can be used in measure and calibrate modes similar to the CL23A. Best regards, OMEGA
Answered by: AENorwalk
Date published: 2020-04-03

Does the calibrator come with a certificate of calibration?

Asked by: DcnJoe
Hi DcnJoe Thank you for the request. Yes NIST calibration report is included. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2024-07-12

Does this calibrator support the &quot;step&quot; feature like the CL27? It's the bottom center button on the CL27. The main use I have for the calibrator is to set 3 different temps and quickly &quot;step&quot; through them to do up to 60 TC oven jacks.

Asked by: BenC
Thank you for your inquiry. This unit does have a 'Step' Feature.
Answered by: Application Engineer CB
Date published: 2021-11-29
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