The temperature transmitter uses thermocouples and thermistors as temperature measuring elements. The output signal from the temperature measuring element is sent to the transmitter module. After being processed through circuits such as voltage stabilization filtering, operation amplification, nonlinear calibration, V/I conversion, constant current, and reverse maintenance, it is transformed into a 4-20mA current signal output that is linearly related to temperature.

　　A device that converts physical measurement signals or general electrical signals into standard electrical signals for output or can be output using communication protocol methods. A temperature transmitter is an external device that converts temperature variables into standardized output signals that can be transmitted. It is primarily used for measuring and controlling temperature parameters in industrial processes. A current transmitter converts the communication current of the tested main circuit into a constant current loop standard signal, which is then connected and transmitted to the receiving device.

　　A temperature and current transmitter converts the signal from a temperature sensor into a current signal, connects it to a secondary surface, and then displays the corresponding temperature. For example, the model of the Xinruida szxrdt series temperature sensor is

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