We all know that multi-function power meters can do many things, but they can't do temperature.
     The temperature transmitter adopts thermocouple and thermal resistance as the temperature measuring element. The output signal from the temperature measuring element is sent to the transmitter module. After voltage regulation filtering, operation amplification, nonlinear correction, V/I conversion, constant current and reverse After the protection and other circuits are processed, it is converted into a 4~20mA current signal with linear relationship with temperature, 0-5V/0-10V voltage signal, and RS485 digital signal is output.
     This is the difference between a temperature transmitter and a multi-function power meter.