Micro differential pressure sensor-PN51C

PN51C series diffused silicon differential pressure transmitter is composed of differential pressure sensor and integrated amplifier circuit. It has the advantages of high stability and good dynamic measurement performance. It is equipped with high-performance microprocessor to correct and compensate sensor nonlinearity and temperature drift, realize accurate digital data transmission, field equipment diagnosis, remote two-way communication and other functions, suitable for use in the measurement and control of liquid and gas. This transmitter has a variety of range, can meet the needs of all kinds of users. It is widely used in metallurgy, machinery, petroleum, chemical industry, power station, light industry, food, environmental protection, national defense and scientific research in various fields. The working principle of diffused silicon differential pressure transmitter is: the process pressure acts on the sensor, the sensor is the output voltage signal proportional to the pressure, the voltage signal is transformed into 4-20mA standard signal through the amplifier circuit. The power supply protection circuit provides excitation for the sensor, and the sensor adopts precision temperature compensation circuit. Its working principle block diagram is as follows: