The Martel MS420 Loop 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.
Typical Applications:
* Chart Recorder
* Panel Meter
* Data Acquisition
* Other Process Instruments
