the accuracy of the PID controllers isn't usually the problem; however, i found the auber RTD's to be of dubious quality, or i could just be really unlucky. i bought 2 last year. one was off by about 6 degrees, the other 15, from a 150 degree water bath. i recently bought 2 RTD's from omega.com, they were both spot on. the PID controllers were the same (2352's from auber).
p.d.
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keg 1: 3 hearted ale
keg 2: british strong ale
keg 3: munich helles
keg 4: empty
on deck: more IPA.
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