Thermistor transmitters allow thermistors to be signal conditioned to be more easily used.
A thermistor is a low cost accurate temperature sensor. It is easily connected using standard copper wire.
The thermistor transmitter converts the thermistor resistance change to 4-20mA current change. The 4-20mA signal allows the thermistor, when using a thermistor transmitter, to be connected to a PLC. This allows thermistors to be used as a part of a modern control system.
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Assigned a new task to add a thermistor measurement to your PLC system, you ask yourself “How do I connect a Thermistor to a PLC?”.