PLC Thermistor Temp Measurement

4-20mA Sensor Transmitter Enables PLC Thermistor Temperature Measurement

Albertson NY, USA — With The Robert Owen Inc. ROI-XMA, users can employ 10K NTC thermistors and 400 series 2252 ohm NTC thermistors with standard industrial Programmable Logic Controllers (PLCs) and industrial I/O.

The ROI-XMA series of loop powered thermistor transmitters, convert a thermistors temperature related resistance change into a standard 4-20mA instrumentation signal.

Input thermistor temperature sensor data, into a PLC using standard 4-20mA, 0-20mA, 0-5Vdc, or 0-10Vdc input A-D channels. No need to replace working sensors, one can signal-condition thermistor sensors to make them compatible with most modern industrial control systems.

The ROI-XMA Features:

  • * Pluggable sensor Euro connectors
  • * Snap on mounting base for DIN rail or surface mounting
  • * Loop powered sensor transmitter, signal conditioner format

Useful for interfacing existing HVAC and refrigeration system thermistor temperature sensors, with modern industrial control systems.

Learn more about ROI-XMA Thermistor temperature sensor transmitter solutions at

Robert Owen Inc.
PO Box 227
Albertson, NY 11507 USA

Tel: +1 516-815-3199
Fax: +1 516-706-1705