How the pressure switch works

The pressure switch amplifies the pressure signal through a high-precision instrumentation amplifier, collects and processes the data through a high-speed MCU, and has a built-in precision sensor for compensation. It is a high-precision device that detects pressure and liquid level signals and realizes pressure and liquid level monitoring and control. It is widely used in automatic systems for measuring gas and liquid pressure in chemical industry, machinery, hydrology, electric power, environmental protection, etc. Because the adjustment is convenient and flexible, and the installation is simple, it can replace most of the occasions where the liquid level switch is used.

The working principle of the pressure switch: when the pressure in the system is higher or lower than the rated safety pressure, the disc in the sensor moves instantaneously, and the switch connector is pushed on or off through the connecting guide rod. When the rated recovery value is reached, the disc resets instantaneously, and the switch resets automatically. On-off state, to achieve the purpose of controlling the measured pressure. The elastic elements used in the pressure switch include a single-coil spring tube, a diaphragm, a diaphragm, and a bellows.

The pressure switch is an automatic controller that receives pressure signals and acts. It has the function of pressure setting. When the pressure of the equipment system reaches or exceeds the upper limit set by the pressure controller, the controller will automatically cut off the circuit and make the equipment stop to play an automatic protection role. When the system pressure is lower than the lower limit of the set pressure, the controller will automatically turn on the circuit to make the equipment return to normal operation. The electronic pressure switch amplifies the pressure signal through a high-precision instrumentation amplifier, collects and processes the data through a high-speed MCU, and has a built-in temperature sensor for temperature compensation. It is a high-precision device that detects pressure and liquid level signals and realizes pressure and liquid level monitoring and control.

The pressure switch is mainly used on the air compressor to adjust the start and stop status of the air compressor. By adjusting the pressure in the air storage tank, the air compressor can be stopped and rested, which has a maintenance effect on the machine. When debugging the air compressor factory, adjust to the specified pressure according to customer needs, and then set a pressure difference. For example, the air compressor starts to pump air into the air storage tank. When the pressure reaches 10kg, the air compressor stops or is unloaded. When the pressure reaches 7kg, the air compressor starts again. There is a pressure difference between this process. Let the air compressor take a break to protect the air compressor.