Temperature transmitter of Shanghai Automation

Source:Shanghai Automation Instrumentation Co., Ltd    Date:2022-11-16

The temperature transmitter of Shanghai Automation uses thermocouples and thermal resistors as temperature measuring elements. The output signals from the temperature measuring elements are sent to the transmitter module. After being processed by voltage stabilizing filtering, operational amplification, nonlinear correction, V/I conversion, constant current and reverse protection circuits, the temperature transmitter is converted into a 4~20mA current signal 0-5V/0-10V voltage signal that is linear to the temperature, and RS485 digital signal is output.

A device that converts physical measurement signals or ordinary electrical signals into standard electrical signals for output or output in the form of communication protocols. The temperature transmitter is an instrument that converts the temperature variable into a standard output signal that can be transmitted. It is mainly used for the measurement and control of temperature parameters in industrial processes. The current transmitter converts the AC current of the main circuit to the standard signal of the constant current loop and continuously transmits it to the receiving device.

The temperature current transmitter converts the signal of the temperature sensor into a current signal and connects it to the secondary instrument to display the corresponding temperature. For example, the model of the temperature sensor in the figure is PT100, so the function of the temperature current transmitter is to convert the resistance signal into the current signal, input it into the instrument, and display the temperature.