Pressure switch is a simple pressure control device, when the measured pressure reaches the rated value, the electronic pressure switch can issue an alarm or control signal.
Working principle of 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 switched on or off by connecting the guide rod.
When the pressure drops to or rises the rated recovery value, the disc is reset instantaneously, the switch is automatically reset, or simply when the measured pressure exceeds the rated value, the free end of the elastic element is displaced. Push the switch element directly or after comparison to change the on-off state of the switch element to achieve the purpose of controlling the measured pressure.
The elastic components used in the pressure switch include single-coil spring tube, diaphragm, diaphragm box and bellows.
The switching elements are magnetic switch, mercury switch, micro switch and so on.
