MS-420 Mini-Source Portable Calibrator

Offers high accuracy in an ultra-small, rugged package

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Simple source meter that fits in your shirt pocket

The Martel Electronics MS-420 Mini-Source Portable Calibrator is a multi-purpose process loop tool that offers high accuracy in an ultra-small, rugged package.

A single pushbutton selects one of five current outputs (4, 8, 12, 16, or 20 mA), which can drive up to 300 Ohms, or can act as a 2-wire simulator with an external loop power supply of up to 30 VDC.

Each unit is provided with a 9V battery, NIST Certificate with Data, and instruction manual.

General Features

  • Chart recorder
  • Panel meter
  • Data acquisition
  • Other process instruments
Output:Five current steps:
4, 8, 12, 16, and 20 mA
Accuracy:±0.075% FS
Voltage Compliance:
Internal 9V battery
External supply; up to 30V
Power Supply:9V alkaline battery
Battery Life:50 hours @ 4 mA output
Temperature Range:
0°C to +50°C
-25°C to +60°C
Mechanical Dimensions:
3.8" x 2.4" x 1.0" (H x W x D)
6 ounces
Output Terminations:Two (2), 8" leads with alligator clips

Contact Us

“Industrial Technical Services is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels”.


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