RTD temperature signal converters for connecting resistance temperature sensors and analogue DC current or voltage outputs.
A variety of resistance thermometers (e.g., PT100) are used to measure temperature in an industrial environment.These are used with 2-, 3-, or 4-wire technology.
We distinguish here between PTC and NTC thermistors.
For an exact temperature measurement, the resistance value must be logged, linearised and converted into an analogue signal proportional to the temperature.
Signal isolating converters carry out these important functions. They isolate signals between the harsh industrial environments and the downstream electronics. Furthermore, they compensate for potential differences caused by long cable lengths.
Sensor-related inadequacies such as cold joints and linearity errors are also minimised.