If the Rosemount transmitter is directly connected with a thermocouple or resistance temperature sensor, it may cause some problems at the input end of the host system of the instrument, thereby affecting the measurement effect of the transmitter. To solve this problem, we can add a temperature transmitter near the sensor.

The detection part of the contact temperature sensor​ has good contact with the measured object, also known as thermometer. The thermometer achieves heat balance through conduction or convection, so that the indication value of the thermometer can directly represent the temperature of the measured object. Generally, the measurement accuracy is high.