I am confused with pressure based electric switch C520101, Contacts Open (not passing) and C520102, Contacts Closed (passing). What is the difference between both the switch? I want to use pressure based electric switch in switching of the power supply when the pressure exceeds 40 psi in air-assisted electrostatic nozzle. Experience based answers are welcomed
Thanking you all
Dear manoj,
Switches and relays are binary device in the sense they have two states the off state=OPEN=NO PASSING or the On state= CLOSED=PASSING. It is so that the switches are made either normally open or normally closed which means that the intial state without the actuating force is either normally open or normally closed.
Accordingly, C520101, is normaly open=OFF with the pressure P is smaller than the threshold pressure Pth
The other is normally closed+ON with P
Dear Dr. Abdelhalim,
Thanks for your reply
Actually I want to use this in Electrostatic Nozzle to switch ON the power supply from a rechargeable dc battery. but I want in confusion. The application is that the switch should be ON when air pressure reaches to 40 psi.
Thanks again
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