kallileo
Lifetime Supporting Member
I'm not really experienced with PID so I need some help.
I have a 300l insulated pasteurizer with heat exchanger on the inner side wall and the bottom. The milk is heated to a desired set-point and stays there for 1,5 hour and it's not possible for the temperature to decrease since the tank polyurethane insulated. I also have immersion NTC sensor as feedback. At the moment I use on/off control but I have a small overshoot around +1,5 C.
I would like to decrease the overshoot to +0,5 C max so as far as I understand it's only possible if PID used and I need to turn on/off the contactor of the heating element.
The HVAC programmable controller has no auto-tuning and uses parallel PID algorithm.
The time to reach the set-point isn't very important but need to have as small error as possible and no overshoot.
Any tips would be appreciated...
I have a 300l insulated pasteurizer with heat exchanger on the inner side wall and the bottom. The milk is heated to a desired set-point and stays there for 1,5 hour and it's not possible for the temperature to decrease since the tank polyurethane insulated. I also have immersion NTC sensor as feedback. At the moment I use on/off control but I have a small overshoot around +1,5 C.
I would like to decrease the overshoot to +0,5 C max so as far as I understand it's only possible if PID used and I need to turn on/off the contactor of the heating element.
The HVAC programmable controller has no auto-tuning and uses parallel PID algorithm.
The time to reach the set-point isn't very important but need to have as small error as possible and no overshoot.
Any tips would be appreciated...