Diffused silicon rod-shaped differential pressure transmitter is composed of double-isolated differential pressure sensor and integrated amplifier circuit, which has the advantages of high stability and good dynamic measurement performance; it is equipped with a high-performance microprocessor to correct and compensate the nonlinearity and temperature drift of the sensor to realize Accurate digital data transmission, on-site device diagnosis, remote two-way communication and other functions are suitable for use in the measurement and control of liquids and gases. The transmitter has a variety of ranges to meet the needs of various users. It is widely used in various fields of metallurgy, machinery, petroleum, chemical industry, power station, light industry, food, environmental protection, national defense and scientific research.
Working principle: When the process pressure acts on the sensor, the sensor outputs a voltage signal proportional to the pressure, and the voltage signal is converted into a 4~20mA standard signal through the amplifying circuit. Its power supply protection circuit provides excitation for the sensor, which uses a precision temperature compensation circuit