presure switch

[500e]

Any one know about Danfos PS8B pressure switch, it is on a compressor.
The problem is to big a variation between on off.
Has 3 adjusters & before fiddling thought ask first twiddle later

 

[the snooper]

I havn't seen one with three adjusters there are usually 2 cut out and differential adjustment, below is a diagram of the range that replaced the ps range