Okay, I have a eaton vfd (mvx9000) and a veris (px series) differential pressure transducer. This will run a exhaust fan for building static @ or above .05 w.c. The pressure control is 0-5, 0-10, or 4-20 with ranges of .1, .25, .5, and 1.0. I started by using 0-10 with .1 range and setting vfd to allow on @ 5vdc so that the fan will not run until static equals .05 or above with 20 hz min speed for motor safety but I am worried about not having good control. I have no test balance records to work with because it was excluded from job. What would you do or recommend?
Thanks in advance, svc