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Loop Calibrator
MS-420 - Martel Calibrators (Martel Calibrators)
The 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.