M143 Portable Multifunction Calibrator
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Portable Multifunction Calibrator AC/DC voltage/current to 1000V/20A Basic accuracy 60 ppm Sinusoidal & Non-sinusoidal waveforms Small dimensions, overall weight 11 kg M143/143i Multifunction calibrator is cost saving solution for calibration of meters of electric quantities up to 1000 V and 20 A. It offers basic accuracy 0.01% in DC voltage needed for calibration of 3½ and 4½ digit multimeters. Resistance function is covered by eight fix resistors in range from 10 Ω to 100 MΩ. The calibrator offers TC temperature sensor simulation. It can be delivered optionally as well with RTD temperature sensor simulator. Thanks to its small dimensions and low weight the calibrator can be applied easily for field calibrations. The calibrator main application field are production lines of panel meters, multimeters, transducers, measuring amplifiers, thermometers, and calibration laboratories where the calibrator can be applied as source of standard value for calibrations, verifications and adjustments of units under test. Interface RS-232 and optionally GPIB interface bus enable automated operation in remote mode offering time saving automatic calibrations. Model M143/143i is fully compatible with Meatest calibration SW package CALIBER/WinQbase Zelezna 3 | 619 00 Brno | Czech Republic | +420 543 250 886 | meatest@meatest.com | www.meatest.

SPECIFICATION Specifications below describe 1-year absolute accuracy of this product including long-term stability, linearity, load and line regulation and reference standard measurement uncertainty as well as ambient conditions within specified limits. Warm-up time Reference temperature Operating temperature GENERAL DATA Storage temperature 15 % of accuracy / °C outside Tref Power supply DC/AC Voltage Temperature coefficient Voltage range summary DC: 0 mV – 1000 V AC sine: 1 mV – 1000 V Non-sine: 1 mVpk – 10 Vpk Internal ranges Frequency range Sine <10 V: 20 Hz – 10 kHz Sine >10 V: 40 Hz –...

DC/AC Current Voltage range summary DC: 0 µA – 20 A *3 AC Sine: 1 µA – 20 A *3 Non-sine: 100 µApk – 2 Apk Internal ranges Frequency range Frequency accuracy and resolution Non-sine waveform types saw, triangle, square, truncated sin Non-sine amplitude accuracy Ranges, resolution, 1 year accuracy [% of value] Range M143i version lacks 20A amplifier and so is limited to 2A. Auxiliary parameters Range Overload protection Includes non-linear distortion and non-harmonic noise up to 100 kHz. Up to 0.6% below 30 Hz. Continuous output up to 10 A is not time-limited. Maximum duration at 20 A is 5...

TC temperature sensor simulation Type Accuracy is based on manual cold junction compensation. Add 0.2 °C for automatic compensation based on external temperature sensor. Compensation range is -5 – 50 °C. Frequency range Frequency accuracy Waveform type Output resistance Full version with 20A amplifier Amplitude accuracy GPIB interface extension Multimeter calibration (application) Clampmeter calibration with 140-50 Current Coil (application)