Guys with 2 stage compressors

I think this is the "standard" or close to it is anyway.

Copied from the Emglo site, two stage features.... "Auto Start/Stop control with pressure unloader set at 145-175 PSI (two stage)"

Charles

Mine's at 145 to 175. Many pressure switches (mine included) for two stage compressors have a 30 psi fixed differential between cut-in and cut-out. It's not adjustable. If I could readily adjust it, I'd have it set at 100 cut-in and 175 cut-out to take maximum advantage of storage capacity and cut down on compressor starts. That also provides a little longer time for cool down between runs. There really are only two reasons why you would want a narrow differential: 1) if you really need the higher pressure most of the time (unusual) or 2) if you are under capacity on the compressor and wish to extend a specific operation for as long a time as possible, starting with a full tank at maximum pressure.

Rod