In the process of industrial and agricultural production, process control instruments have experienced the development stage from hydraulic pneumatic instruments, electric instruments, electronic analog instruments, digital intelligent instruments to computer distributed control systems. The process control instrument consists of three parts: the measuring transmitter unit, the actuator and the regulator. Today we are going to refer to the transmitter unit that means the measuring transmitter unit, such as the valve is the actuator, and the regulator is the control system, such as the PID regulator. What exactly can a transmitter do? During the production process, the measuring cell of the transmitter detects parameters such as pressure, level, temperature, flow rate, etc. And the signal is uniformly converted into standard signals (4~20mA current signal, 0~10VDC voltage signal, RS485 digital signal), and the display instrument or adjustment instrument is displayed, recorded or adjusted. Therefore, the transmitter is not only a conversion medium, but also a medium. In the actual operating field, the regulator is generally located in a control room at a relatively long distance. In this way, the transmitter becomes a complex of two functions: signal generation and transmission. It can be said that the transmitter is the heart of the entire control device, and the transmitter effectively links the control end and the measurement end together to constitute the whole control system. Transmitters can be divided into pressure transmitters, liquid level transmitters, temperature transmitters, temperature transmitters, temperature and humidity transmitters, differential pressure transmitters, soil moisture transmitters, etc. Different types of transmitters use different environments and measurement media. The transmitter provides effective support for the automatic production of industry and agriculture. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!