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Milliamp Loop Calibrator | CL530

Milliamp Loop Calibrator

See All Models Below

  • Source, Measure, Simulate, Read all 4-20 mA Process Loop Functions
  • Check 4 and 20 mA Span Limits
  • One-Handed Operation with Hands-Free Stepping/Ramping
  • Display mA or %
  • 0.012% Accuracy.
Precision Calibration Equipment and Ice Point References - View related products


The CL530 builds on OMEGA’s 30 years of calibration experience. The user can check, calibrate, and troubleshoot 4 to 20 mA process control loops with this easy-to-use instrument.

The CL532 has all the features of the CL530, plus it will read up to 30 Vdc and source up to 24 Vdc.

Accuracy: ±0.012% rdg + 0.004 mA
Temperature Effect: ±50 ppm/°C
Operating Temperature Range: -20 to 60°C (-5 to 140°F)
Storage Temperature Range: -30 to 60°C (-22 to 140°F)
Relative Humidity Range: 10% ≤RH ≤90% [0 to 35°C (32 to 95°F)], non-condensing; 10% ≤RH ≤70% [35 to 60°C (95 to 140°F)], non-condensing
Overvoltage Protection: 120 Vrms for 30 seconds, 240 Vrms for 15 seconds
Overload Protection: 24 mA nominal
Battery: 9V, alkaline (included)
Battery Life:
    Source Mode: ≥18 hours at 12 mA (HartR disabled)
    Power Measure: 10 hours, read, 2 W limit sim.
Read Vdc: >40 hours
Loop Drive Ability: 1200 Ω at 20 mA for life of battery
Loop Burden: <2V at 20 mA Loop Supply Limits (2 W Limit Sim.): 2 to 60 Vdc
Connection: Alligator test leads attached, 610 mm (24") long
Dimensions: 84 W x 180 H x 56 mm D (3.3 x 7.1 x 2.2")
Weight: 326 g (11.5 oz)
Source Current: Source 0 to 24 mA or -25 to 125% into ≤1200 Ω; a flashing HIGH Ω indicator appears if improperly connected
2-Wire Transmitter Simulate: Adjust loop current from 0 to 24 mA or -25 to 125% when powered by an external supply; LOW SUPPLY flashes to indicate a misconnection
Power Measure: Power the loop and read 0 to 24 mA or -25 to 125%; CURRENT LIMITED flashes at >24 mA, protecting devices in the loop
Read Current: Read 0 to 24 mA or -25 to 125%; CURRENT LIMITED flashes at >24 mA, protecting devices in the loop
Read DC Voltage: Read 0 to 60 Vdc with 2x overrange ability and flashing OVERRANGE indicator
EZ-Check Switch: Gives instant access to 4 and 20 mA or other user-set span limits; in read modes, the EZ-Check switch provides a max/min log of reading
EZ-Step Button: Allows one-handed stepping up and down the span in 6 different step sizes
EZ-Dial Knob: Adjusts output by 0.001 mA (0.01%); push and turn for 100x faster adjustment—by 0.100 mA (1.00%)
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Rugged carrying case
All prices on this site are shown in Singapore Dollars.
Note: The CL530 comes complete with test leads, operator’s manual, 9V alkaline battery and NIST calibration certificate.

Product Manuals:

Download CL532 - ma/v Loop Calibrator
Download CL530 - 4-20 Milliamp Loop Calibrator
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