Has anyone out there ever used a PID controller to control their Furnace or Electric Lead pot? I read a lot of posts regarding temperature when casting and the need to monitor the temperature of the alloy in the melter, so I thought using a PID controller would be the perfect solution.
I have a Honeywell PID that controls the actual voltage output (0-100% or 0 -120VAC). I use it for controlling my electric smoker, 3 tiered brew stand HLT and to maintain temperature for my cheese creations. The unit controls to a very close setpoint for these applications, so I believe it will do the job for the Lee Pro4-20.
I do need to order the temperature probe from Omega (less than $100.00) and I should be in business.
A standard PID controller should also work, but the continuous open/close of the scr may cause some overheating issues.
I will post some pictures of operation when I receive the temp. probe.
Any thoughts or input would be welcome.
Salute!