Air Conditioner Pressure Transmitter is often called pressure switches. In fact, sensors and switches are two completely different things. Their working principles are completely different, and the detection methods are very different!
The pressure sensor is generally a three -line active simulation sensor, which outputs analog signal! There are generally 2 lines and 4 lines of stress switch. He transmits switch signals!Their role is the same, and they all play the role of protecting the air -conditioning system! Only the system pressure is between 2 babes and 32 bars can the compressor start!
What is air -conditioning pressure sensor?
The air -conditioning pressure sensor is a sensor element of the automatic air -conditioning control system. Its role is to prevent the refrigeration system from working under the pressure of extreme refrigerant pipelines and help control the speed of the engine cooling fan. The pressure sensor is installed on the high -pressure tube road in the engine cabin.
The Industry Pressure Transmitter outputs the pressure signal to the engine ECM or air conditioner control unit. When the pressure of the air conditioner refrigeration pipe road is too low or too high, the control system stops power to power the air conditioner compressor clutch, and the compressor stops running to avoid damage to the air -conditioning system. When the refrigerant pressure reaches a medium pressure value, the radiator fan operates at high speed to reduce the pressure of air -conditioning refrigerant.
