Meatest M143 and M143i portable multifunction calibrator

The Meatest M143 and M143i portable multifunction calibrator is a cost-effective solution for calibration of meters with electrical quantities up to 1000 V and 20 A. It offers a basic accuracy of 0.01% in DC voltage required for calibration of 3½ and 4½ digit multimeters. The resistor function covers eight fixed resistors of 10 Ω 100 MΩ.

The calibrator provides thermocouple temperature sensor simulation. It can also be optionally supplied with RTD temperature sensor simulator. Thanks to the small size and low weight of the calibrator, it can be used for field calibrations.

The main application of the calibrator are production lines of panel meters, multimeters, transducers, measuring amplifiers, thermometers and calibration laboratories, where the calibrator can be used as a working standard for calibrations, checks and adjustments.


The RS-232 interface and optional GPIB interface bus provides automated operation and time-saving automatic calibrations. The Meatest M143 is fully compatible with Meatest Calibration Software Package Caliber and WinQbase.


  • Basic Accuracy 70 ppm for DCV
  • DC/AC voltage up to 1000 V
  • DC/AC current up to 20 A (2 A with M143i)
  • Calibration of clamp meters up to 1000 A using Meatest M140-50 Current Coil
  • Sinusoidal & Non-sinusoidal waveforms
  • Fixed standard resistors from 10 Ω to 100 MΩ
  • TC/RTD temperature sensor simulation


For more information about multifunction calibrators, please refer to the overview page.

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