I would like to know what the five point calibration of an equal percentage valve is. I know a linear valve is, 4ma = 0%open, 8ma = 5%open, 12ma = 50%open, 16ma = 75% and 20ma = 100%open. What is the ma signal say at 25% open, 50% open, and 75% open of an equal percentage valve?

 

Thanks I think I found my answer in another post.