Temperature Sensor

Temperature sensors measure process temperature using sensing elements such as RTDs or thermocouples. In an RTD, the electrical resistance of a metal element changes predictably with temperature. SUPMEA RTD models use elements such as Pt100 or Pt1000, with platinum providing good linearity and stability. Thermocouples use two dissimilar metals and generate a voltage related to the temperature difference between the measuring and reference junctions. 

Depending on the model, the sensor signal can be transmitted directly or connected to a temperature transmitter. SUPMEA transmitters can accept RTD and thermocouple inputs, provide signal conditioning and cold-junction compensation where required, and convert the measurement into a standard 4–20 mA output for PLC, DCS or other process-control systems.