Hi there and welcome!
To sum up what has been said, you will need to do a simple rewire on your MES30 for it to work with the Auber PID.
Looking at your smoker I think I know what you will see/encounter. I rewired an MES30 a couple of weeks ago that looked just like yours from the pics so far.
The work you need to do is in the bottom panel on the left side of the image.
When you pull that bottom panel off you will likely see a black plastic box in there.
IMPORTANT: The screws to pull the cover off that box have some weird "Y" shaped slots! You can use a super tiny flat head (what I did) to undo the screws OR just drill them out. I removed the whole box and just taped/fastened the left over wires back in the compartment after I spliced the wires.
When you get the top off that black box it should look something like the following image but might not have such colorful braided wires (pic via sonny):
Once you get the top unscrewed from the black plastic box you should see everything you need to rewire and it is a simple cut and splice job. See the image below for some instruction:
The simplest way to go about it is to splice a Braided wire to a Non-Braided wire and then repeat with the left over braided and non braided wire.
So 1 to 4 and 2 to 3, OR
- 1 to 3 and 2 to 4
Doing so will keep the safety switch in the mix which is desirable.
Once you do the splice you have completed the bypass of all MES electronics.
Your smoker will now do one thing when plugged into the wall, that is Heat up! You unplug to stop the heat, very simple.
NOW, with your Auber PID things should work in the following manner:
- With this rewire job you plug the MES into the PID controller (PID controller is plugged into the wall).
- You enter a set temp like 225F into the PID controller.
- The PID has a temp probe you put inside the MES.
- Now the PID will read the temp inside the MES and if below the set temp (225F in this case) the PID will feed power to the MES until the MES hits the set temp, then the PID will cut off power to the MES.
- The PID will then continuously cut power off/on to the MES to keep within about +-2 degrees of the set temp.
Let me know if this info helps or if I have thoroughly confused everyone :D