Old toaster oven with PID regulator

Very simple 2 hour project in the workshop. Generic clone REX100 controller from Banggood put in old toaster oven. Top / bottom heater switch still works. Also timer is working. It clocks down from 60min. Well, seconds ticking does not sound very precise but still..

Default PID values seems be made for this oven. When set to 115°C there is 115°C. No overshoot at start, good reaction for door opening.

I have tested the controller and there is temperature compensation of cold side of thermocouple.

After first test, I am very satisfied with this controller. I am seriously considering upgrade of my kitchen oven in the same way.

 

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