What is everyone's opinion on rtd placement for reading mash temp on a eherms system? I was originally just going to place it right on the side of the mash tun, but I see a lot of people placing it in a T off the bottom ball valve so it reads the temp of the exiting wort before going to the herms coil. Thought?
RTD placement
- Thread starter joehoppy
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1MadScientist
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I moved mine to a tee on the output of a pump.
Works great.
Works great.
cantrell00
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T in the loop from HLT to MLT.
I have a dial gauge in the MLT too that measures the mash temp.
Placing it there was the tightest delta with the HLT.
In the mash was the widest.
I have a dial gauge in the MLT too that measures the mash temp.
Placing it there was the tightest delta with the HLT.
In the mash was the widest.
I have probes both in the HLT and on the HERMS exit. The exit consistently reads a couple degrees less than the HLT even though both were calibrated. I guess that means my coil isn't as efficient, but I just crank the HLT up until the coil exit matches my desired mash temp. I swap the boil PID probe wire between the boil kettle and coil exit during the brew, but obviously while mashing the boil PID doesn't control anything.
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