Originally Posted by Gabrew
I'll probably have three probes:
1- HLT: monitor and control strike temp & HERMS
2- MLT: monitor mash
3- BK: monitor wort cooling (maybe try to control element output to maintain a rolling boil while preventing boil over...)
The only question is where to mount them, I don't want wires dangling from every bit of the rig, yet I want to make it as functional as possible.
I was about to go with a BCS...but would rather not have to employ a laptop for every session. I might just go with 3 PIDs.
Three PIDs is kind of overkill. You don't need a full-blown PID to monitor the temp of your MLT. You just need a thermometer.
You can get digital thermometers that can be mounted in a panel and use a temp probe. I mean.. a PID will definitely show you the temp of a probe in the MLT, but if that PID isn't trying to control some other device based on that temp, then the PID is just acting as a thermometer.
Purely up to you. I can understand wating to keep things with a uniform look and feel if that's your thing.
As for a temp probe in the BK. If you want to monitor the temp for chilling, then you will want to install one in the BK someplace. A PID that is controlling a BK doesn't actually use the input from the temp probe because the temp of a boil is constant no matter how hard it is boiling. A PID with manual mode (the popular one from Auber than lots of guys use) is what you would want for boil control. Manual control of the BK while also displaying the temp of the BK to you.