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Handheld Thermocouple and Process Calibrators

CL123 CL100MA

Thermocouple and Process Calibrators | CL123 CL100MA

Thermocouple and Process Calibrators

  • Handheld thermocouple and proccess calibrators, to simulate Temperature or Process Signals
  • Temperature calibrator model CL123 for Simulation of mA, mV, V, Hz, or Thermocouple type K, J, E, T (in °C or °F) Signals
  • Process calibrator model CL100MA for Simulation of 4-20 mA, 0-20 mA, 0-24 mA type Signals
  • Easy Push Button Programming
Precision Calibration Equipment and Ice Point References - View related products


The handheld thermocouple and process signal calibrator OMEGA™CL120 Series are compact, easy-to-use handheld devices that provide a precision output signal. Units do not read signals.

General Specifications
Battery: 9V Alkaline (included)
Displays: 4 and 5 digits
Operating Temperature:0 to 50°C (32 to 122°F)
Storage Temperature:-20 to 60°C (-4 to 140°F)
Operating/Storage Humidity:< 85% relative
Dimensions:88 x 168 x 26 mm (3.5 x 6.6 x 1")
Weight: 330 g (11.6 oz.)


4-20 mA (1K. load, 24 V loop supply)
0-100.00 mV, 0-1.0000 V, 0-12.000 V
K,J,E,T Thermocouples (°C & °F)
Frequency 1-62500 Hz
0-20 mA, 0-24 mA Selectable
0-100% range setting in mA, mV, V, mode
Beeper Warning when Output is Open (mA)
Basic Accuracy: 0.025%
0-24 mA ±0.025% ±0.003 mA
0-100 mV ±0.05% ±0.03 mV
0-1 V ±0.05% ±0.0003 V
0-10 V ±0.05% ±0.003 V
K: -200 to 1370, ±0.9°C
J: -100 to 760, ±0.8°C
E: -100 to 700, ±0.7°C
T: -200 to 400, ±0.8°C
Frequency: 1 to 125 Hz, ±0.04 Hz, 126 to 62,500 Hz, ±0.01% ±0.04 Hz (604 Available Frequencies)
Thermocouple Connection:SMP (miniature) type on front
Process Connection:45 cm (18") red and black leads attached to side of unit

4-20 mA with 1 µA resolution
Auto-Ramp and Easy Step Functions
1-100% Input
0-20 mA, 0-24 mA Selectable
Easy Keypad Programming
0-4 mA0.001 mA0.025% + 10 µA
4-20 mA0.001 mA0.025% + 5 µA
20-24 mA0.001 mA0.025% + 5 µA
Process Connection: 45 cm (18") red and black leads attached to side of unit

Place Order(Specify Model Number)
Part Number/ Desc.
Quick Ship
Availability: 1 week
CL123 calibrator with calibration certificate traceable to UK standards
Quick Ship
Availability: 1 week
4-20mA loop calibrator
Quick Ship
Availability: 2 weeks
Type K coiled cable (green) with mini plugs
Quick Ship
Availability: 4 weeks
Type T coiled cable (brown) with mini plugs
Quick Ship
Availability: 2 weeks
Type J coiled cable (black) with mini plugs
Quick Ship
Availability: In Stock
AC adapter for CL123 & CL100MA. 230Vac with 3-pin UK plug
Quick Ship
Availability: 2 weeks
AC adapter for CL123 & CL100MA. 230Vac with 2-pin Euro plug
All amounts shown in EUR, GBP, or USD
Note: Each unit supplied with rugged carrying case, complete operator’s manual, 9 V battery, external battery pack (without batteries) holds four AA batteries (models CL123 & CL100MA), type K thermocouple (model CL123), test leads and alligator clip (models CL123 & CL100MA). Units are for simulation (not reading) of temperature or process signals.

Product Manuals:

Download CL123 - Handheld Multifunction Calibrator
Download CL100MA - 4-20 mA Loop Calibrator