Air compressor pressure switch, I marked 1 and 2 are used to do what, what position of successive
1 is the air compressor outlet pressure, the above is the pressure of the automatic setting device, pay attention to the standard MPA position of the pointer, the pointer on both sides of a side, the pressure set the upper part of the device has two knobs,
Air compressor start, stop the set value. The right part of the illustrated device is a contactor that controls the electrical circuit, and the left part of the hardware connected to the composition of the pressure automatically. You have not seen the location 2 on your map, but look at the form of the contactor
1, air compressor pressure controller if the use of hose and air compressor outlet connected, 2 should be the role of support fixed pressure controller.
2, if here is equipped with knobs, and air compressor controller without air open, the role should be used as an unprotected function of the open use, that is, air compressor parking, start with
