bendavanza
Well-Known Member
I have been using a RIMS toolbox for a while now, and it seemed it was all working well, within a few degrees of my desired temps. I did the upgrade on the impeller of the pump, and the last few times I used it, I overshot the temps. It would seem to work fine for say 20 minutes but slowly creep up, still activating the element when the RTD's temp was above the desired point.
I needed to clean the tun so I made up a batch of cleanitizer (similar to oxy but no rinse) at 5 gallons and once the temp was near the 150 set point, initiated auto-tune. It went through the sequence and when I checked on it about 45 min. later the temp was 155, with the element still being pulsed every so often.
My Pd value (offset for RTD) is at 7 to get the temp from my calibrated digital thermo at the return tube to match the indicated PV.
I'm no EE or anything, so suggestions and help are much appreciated.
links to my equipment should be in my signature.
My brew tree
My RIMS toolbox
I needed to clean the tun so I made up a batch of cleanitizer (similar to oxy but no rinse) at 5 gallons and once the temp was near the 150 set point, initiated auto-tune. It went through the sequence and when I checked on it about 45 min. later the temp was 155, with the element still being pulsed every so often.
My Pd value (offset for RTD) is at 7 to get the temp from my calibrated digital thermo at the return tube to match the indicated PV.
I'm no EE or anything, so suggestions and help are much appreciated.
links to my equipment should be in my signature.
My brew tree
My RIMS toolbox