Eherms mash temperature issue

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Carter05

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I am running a eherms setup with a bcs460 and keggles/cooler. I have three temperature probes on the system. On mash tun out, herms coil out, and hlt temp.
I have a thermapen for back up and I needed it today. This is only the second brew I have done on this system and I am still learning the ins and outs of it. What got me today was the herms out and mash temp probes, they both were reading 6-8 degrees cooler than the hlt probe. I checked the hlt temp with the thermapen and it was spot on. The wort coming out of the herms return was also spot upon but again, reading incorrectly at the probe. I measured the mash in several spots and the temp was also spot on but
according to the temp probe it was 6 degrees cooler.

Also thought maybe it was a flow issue but I have my valves open all the way.

Anyone else experience this issue before?
 
Sounds like you need to calibrate your probes. Isn't there a way on the BCS to add the 6 degrees to each probe in the MT OUT and HERMS coil OUT?
 
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