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If the pressure switch is a switch of the more simple, direct access control box can be the collection side.
Shandong coal electrical, professional control box and sensor production.
2-wire sensor, the first sensor + connected to the power supply 24V positive, the sensor - the signal input of the +, the signal input - with the 24V - can be connected.
3-wire system is relatively simple, to the sensor +, - respectively, access to power 24V +, -. The signal output of the sensor is connected to the input terminal of the signal, and the signal input terminal can be connected with the power supply 24V.
General pressure sensors are 12V to 24 wide range of power supply, the sensor has 2-wire and 3-wire system.
