PR Electronics ► Temperature

Temperature transmitters

What is a temperature transmitter?

A temperature transmitter converts the small signal from a temperature sensor - typically a thermocouple or RTD - into a more robust 4...20 mA or digital signal for interfacing into other control equipment. To ensure accuracy, a temperature transmitter converts the signal from a temperature sensor—typically an RTD or thermocouple—into a more robust and standardized output. This output may be analog (such as 4–20 mA) or digital, using protocols like HART, PROFIBUS PA, or FOUNDATION Fieldbus. The signal conditioning process includes isolation, amplification, linearization, and noise filtering to ensure reliable data transmission.