Tonk
Member
I am trying to hold down a tight temperature range customer wants +/-8F on a 800F setting. Currently holding about +/- 15F. I control block set up so that I have a two timers one for heaters on and other for heaters off the .pre of each timer is a varible tag. I change this value depending upon the percentage of the set temp verses the actual measured temp. I have had the temp probes calibrated and there within +/- 2f. But has anybody got any idea's what I can do to tighten up my control loop????