The temperature transmitter uses the thermocouple and thermal resistance as the temperature measurement element. From the output signal of the temperature measurement element to the transmitter module. After the circuit processing of protection and other circuits, the 4 ~ 20mA current signal with a linear relationship with temperature forming 0-5V/0-10V voltage signal, RS485 digital signal output,
 
Working principle: Temperature transmitter organically integrates the temperature sensing element (thermal resistance or thermocouple) with the signal conversion amplification unit to measure the liquid, steam and other other processes-200-1600 ° C range of various processes-200-1600 ° C range The temperature of the gas medium or the solid surface, it is usually used with the display instrument, recorder, and various control systems. The temperature sensor temperature affects generate resistance or potential effects. After conversion, a differential voltage signal is generated. After voltage and current transformation, the current signal of 4-20mA corresponding to the range of the output and the range will convert a physical measurement signal or ordinary electrical signal into a standard electrical signal output or the device that can be output by a communication protocol. The temperature transmitter is converted to transmitting temperature variables.
 
The instrument of the standardized output signal is mainly used for the measurement and control of the temperature parameters of the industrial process. Convert the signal of the temperature sensor to a current signal and connect to the second instrument to show the corresponding temperature. For example, the model of the temperature sensor in the figure is PT100, so the role of the temperature current transmitter is to transform the resistance signal to to Current signal, input instrument, display temperature,
 
Vician electronics thermistor sensor is used in new energy vehicles, and Vician Electronic Collection R & D, design, production, and sales of electronic component brands. Having more than 20 years of experience in the electronic industry, and cooperation of colleges and universities in the long -term institutes; you can customize parameters and sizes according to customer requirements, pay attention to customer special needs (mechanical and electronic product transformation and upgrading, plan provision, etc.). Consultation telephone 18717811268