The 2188 transmitter consists of a piezoresistive sensor and a signal conversion module. The core component of the sensor is a single crystal silicon wafer. When the single crystal silicon wafer is compressed, its resistivity changes. Through semiconductor planar technology, four resistors are diffused on the silicon wafer and connected to form a bridge. Under constant current, it can output a voltage signal proportional to the pressure signal. The signal conversion module processes the voltage signal of the sensor and converts it into a 4-20mA standard signal.

The 2188 pressure transmitter can be used to measure the pressure, liquid level, and other parameters of fluids (liquids, gases, and vapors), and convert the measured signal into a 4-20mA standard signal output. This output can be used as an input signal for indication, recording, and regulation. The 2188 pressure transmitter has the advantages of small volume, light weight, high accuracy, low price, and can be equipped with on-site indicator meters, zero point migration, range expansion, and other functions. It is intrinsically safe and explosion-proof, and has all the functions of an industrial pressure transmitter.