Calibrate Pressure Switch?

[Mark Sheridan]

Originally Posted by Tristan Lall

Before you throw it away, see if you can cut it open and post a photograph. That might be useful for future reference.

Sorry for the delay. Here is pictures of the broken pressure switch I have. The silcone seal was very easy to break. The following shows the switch and the housing for the diaphragm. You can see that diaphragm is the piece that is loaded at the factory for the pressure setting and its only factory settable. As I try to pack this up for Al, I can't put this back together, the set screw used to hold the two halves together deformed the threads on the plastic piece and I can't get the treads to engage. So its really really only factory settable. I can see by breaking the seal, the top half can easily disengage (I did this all by hand) and thus keeping the sensor closed and unable to detect full pressure.