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MS420 – PORTABLE CURRENT SOURCE

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SKU :

LSC_007

Calibration needed?
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, and instruction manual.
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The MS420 Portable Current Source is a rugged, handheld device built to generate stable current for testing and instrument calibration. Compact and lightweight, it’s ideal for field calibration, sensor checks, and loop setting in control systems. Featuring accurate current output control with a clear display and simple adjustment interface, it allows operators to source precise mA levels for smooth calibration workflows. Its durable housing and long battery run times ensure reliability in tough environments, making the MS420 a trusted companion for electricians, technicians, and maintenance teams who value dependable calibration tools.

Key Features:

Portable, handheld current source for mA calibration

Precision output with an easy-to-read display and controls

Long battery life and robust housing for outdoor use

Ideal for field sensor checks and control loop calibration

Streamlines maintenance by eliminating bulky equipment

Suitable for industrial, HVAC, and automation environments