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CL540ZA-series
14 Thermocouple Types and Millivolt Calibrator & Simulator
Models In Stock
- Source 14 Thermocouple Types
- Easy-to-Read Backlight Display
- Easily Change Thermocouple Types and Scale
- Calibrate Directly in Temperature (°C or °F)
CL540ZA-series
From
$
1,668.14
Models In Stock
Product Overview
- Accuracy ± 0.015 %
- Accuracy Detail ± (0.015% of reading + 0.006 mV)
- Additional Features 1 Source Only
- Battery Indication A low battery indication is displayed when the battery voltage drops below the operating level
- Battery life 50 hr
- Cold Junction Compensation ± 0.25°C
- Dimensions(Boot) 144 L x 78 W x 52 D mm
- Display Type LCD
- Display Type Note High contrast graphic liquid crystal display, LED backlighting for use in low lit areas
- Height 45 mm
- Length 126 mm
- Operating Temperature, Min -25 °C
- Over-Voltage Protection Over-voltage protection to 60 Vdc (rated for 30 seconds)
- Relative Humidity, Max 0.9
- Relative Humidity, Min 10%
- Relative Humidity Note 10% ≤ RH ≤ 90% 0 to 35°C (32 to 95ºF), non-condensing. 10% ≤ RH ≤ 70% 35 to 60°C (95 to 140ºF), non-condensing
- Series ID CL540ZA-series
- Supply Voltage 6 Vdc
- Thermocouple Type J, K, T, E, N, R, S, U, B, G, C, D, L
- Voltage Source Output Impedance: < 0.3 Ω Source Current: > 20 mA (drives 80 mV into 10 Ω) Noise: ≤ 4 microvolts p-p for frequencies of 10 Hz or below
- Weight 238 g
- Weight(Boot) 311.8 g
- Weight Note 238 g (8.4 oz) (including batteries)
- Weight Note(Boot) 311.8 g (11 oz) (including batteries)
- Width 69 mm
Supported Applications
The Omega CL540A and CL540ZA series are portable thermocouple sources designed for checking and calibrating thermocouple instruments. These handheld devices provide a simulated thermocouple signal in temperature units (°C or °F) or millivolts, enabling field verification of instrumentation.
Operating Conditions & Performance
The CL540ZA series operates with an accuracy of ±0.1 °C and offers a resolution of 0.1 °C or 0.001 mV. The measurement range spans from 0 to 1000 °C (0 to 1832 °F). Power is supplied by four 1.5V 'AA' Alkaline batteries, which are included with the unit.
Low battery conditions are indicated by a 'BAT' display message. Approximately one to four hours of typical operation remain before the unit automatically turns off if configured for auto-off functionality.
Configuration Options
The CL540ZA model includes additional configuration options compared to the base CL540A, including selectable thermocouple types and an auto-off feature. The series supports a rugged design with low profile switches and offers an optional rubber boot for enhanced protection.
Thermocouple Types (CL540ZA Only)
- J
- T
- E
- K
- R
- S
- B
- N
- G
- C
- D
- L (J-DIN)
- U (T-DIN)
- Platinel II
- mV
Outputs and Connections
The device provides output signals in °C, °F, or millivolts. Electrical connections include a female miniature thermocouple connector at the top end for sensor simulation and two banana jacks at the top end for millivolt signals.
Key Product Differences
The CL540ZA model distinguishes itself from the CL540A by offering selectable thermocouple types (J, T, E, K, R, S, B, N, G, C, D, L, U, Platinel II) and an auto-off feature. Both models utilize four AA batteries; however, removing the batteries resets all stored configuration options—including T/C Type and HI/SET/LO Memories—to factory settings.
Configuration parameters such as EXIT (15), TEMP UNITS (°C), T/C type (K default), and AUTO OFF status are managed via a Configuration Menu. The CL540ZA model specifically supports the expanded list of thermocouple types listed above, whereas the base series identity focuses on general thermocource simulation.
PDFs & Manuals
Accessories
accessories
cables
signal conditioners
Show Ratings & Reviews
Rated 5 out of
5
by
Captain Ballard from
Thermocouple injector
Excellent product! Affordable price too. Best injector I have ever used.
Date published: 2017-11-15
Rated 4 out of
5
by
Production Manager from
Works well but lacks the speed adjust
Purchased this to replace an older model. We liked several of the upgrades but miss the ability to quick adjust the temperature (mV) output.
Date published: 2016-02-12
Rated 5 out of
5
by
Mr Jeff T from
Awesome tool!
Excellent tool for troubleshooting/testing controls
Date published: 2024-05-24
Rated 4 out of
5
by
jaslav from
Very handy and effective
Great working product, nice an handy when trouble shooting or needing to verify temps.
Date published: 2018-10-17
Can we use this CL540ZA Model for Thermocouples type P Thanks AM
Hi Andmir,
Thank you for the inquiry. This calibrator does not have a range for type P.
Best regards
OMEGA
Date published: 2023-10-07
CL540Z calibrator use : for different different types of thermocouple types we need to use different different types of thermocouple wires for calibration or who we need to verify all the thermocouple modules?
Thank you for your inquiry Swapna. That is correct to use different thermocouple types you need to use the corresponding thermocouple wire to make sure you are using the correct metals with the specific thermocouple type. If this is not follow then you will not be using this unit correctly.
Date published: 2022-12-16
Does this simulator come with an NIST calibration cert?
Hi Chris,
Thank you for the inquiry. Yes, this product includes NIST certificate.
Best regards
OMEGA
Date published: 2024-01-16
We use "two point" thermocouples to measure surface temperature of aluminum. Could this simulator be used to check the two point devices periodically?
The CL540Z will only simulate a thermocouple. This device is used to check instrument display for correct response. The devices to check the probes are as follows; CL514-PLUS or the low cost CL3512A
If you have a stable surface temperature that can be verified with reference probe then you can use the above meters to verify the probe readings by comparison check. Please contact us anytime with any further questions.
Date published: 2019-06-13