|
1 switch + delayed turn off code
I don't thinks the switch is required. Also, you don't necessarily need to have 2 switches to have an efficient system.
It is possible to write code that runs the pump for XXX seconds after the switch is made. We set the switch to 100 psi or so. Then we measure how long it takes the pump to get to 120 psi after the switch makes its transition to indicate the pressure is above 100 psi. We then use the delayed turn off code to keep the pump running until the pressure is at 120 psi.
Joe J.
|