A temperature transmitter is an instrument that converts temperature variables into a standardized output signal that can be transmitted. Mainly used for measuring and controlling temperature parameters in industrial processes. According to different working principles, the types of temperature transmitters on the market can mainly be divided into thermocouple type temperature transmitters and thermal resistance type temperature transmitters. Thermocouple temperature transmitter is a device that amplifies the thermoelectric potential generated by the thermocouple through cold end compensation, eliminates the nonlinear error between thermoelectric potential and temperature through a linear circuit, and finally amplifies and converts it into a 4-20mA current output signal. A thermistor temperature transmitter is a PT100 sensor that generates a resistance effect under the influence of temperature. It is converted by a dedicated processing unit to generate a differential voltage signal, which is then converted into a standard model or digital signal by a dedicated amplifier. Starting from January 1, 1988, thermocouples and thermistors in China have been produced in accordance with IEC international standards, and seven standardized thermocouples, S, B, E, K, R, J, and T, have been designated as the unified design type thermocouples in China. In order to ensure the reliable and stable operation of the thermocouple, the structural requirements are as follows: first, the welding of the two thermoelectric electrodes that make up the thermocouple must be firm; Secondly, the two thermoelectric electrodes should be well insulated from each other to prevent short circuits; Thirdly, the connection between the compensating wire and the free end of the thermocouple should be convenient and reliable; Finally, the protective casing should ensure sufficient isolation between the thermoelectric electrode and harmful media. The thermal resistance temperature transmitter adopts laser resistance adjustment technology for wide temperature range zero point and sensitivity compensation. The amplification circuit is located inside the stainless steel casing, converting the sensor signal into a standard output signal, fully leveraging the technical advantages, making the resistance type temperature transmitter have excellent performance. The resistance type temperature transmitter has the characteristics of high accuracy, small size, light weight, easy installation, frequency cutoff design, and strong anti-interference ability. If you have any questions regarding product inquiries, product customization, agency, technical inquiries, quotations, etc., please contact Xingyi at 400-600-4496!