A dc-operated position sensor is spring-loaded and provides two-wire, loop-powered 4 to 20 mA operation commonly used with many PLCs, computer-based data processors, and QC data-collection systems. Operating over a wide range of loop supply voltages and with loop resistances up to 800 ohms, GHSI 750 sensors are suitable for use in machine tool inspection, go/no-go inspection, and statistical quality control info or as part of a closed-loop control system. The position sensors also work well for remote-sensing applications where ac power is not readily available to operate external signal conditioning. Hermetically sealed and constructed entirely of stainless steel, the coil windings are sealed against hostile environments to IEC standard IP-68.

Macro Sensors, U.S. Route 130 North, Bldg. 22, Pennsauken, NJ 08110, (856) 662-8000, www.info.hotims.com/18364-255