I have had my auber at 110 degreeswith smoke salmon and at lower temps it has a larger swing in temp. But it should even work at far lower temps but it just has larger swings. When they say from 120 degrees ,I think that is the bench mark for smaller swings but it will work
For what it's worth, here's my take on PID temp swings at lower temps....
Most people tune their PID's for 200 or 210 degrees. By doing this the PID seeks the very best settings to maintain this temp in the given enviroment. So, when you try to maintain a temp around 110 degrees the parameters and response times are completely different which result in temp swings.
Here is what I have thought about doing. I haven't tested the theory yet so take it for what it's worth.
First, record your P, I & D settings as you have it tuned now. You may also want to record the "t" setting (Cycle Rate) as well. I have noticed that the auto tune sometimes changes this as well. If you are like most people you have probably tuned it for 200 or 210 degees. By recording these settings you will be able to manually change them back.
Next run the autotune with a simulated load in the BS at the desired temp, say 110 degrees. Once the autotune is complete, manually look at the settings and record themas well.
In theory, with the settings you have recorded, you should be able to manually adjust the PID to more acurately maintain different temperature ranges. Of course, to maintain a 110 degree temp for any period of time you will probably have to have your BS setup in a cold smoke configuration.
Mike
