Autotuning the PXG4 for the La Pavoni
Below is an update on the earlier blog about PID and La Pavoni:
Switching on the 'autotune' around the operating group temp of 77ºC did not work well recently since the procedure involves having the heating element on full capacity for a certain amount of time and at the given temperature that would result in considerable overpressure for the boiler with a violently hissing overpressure valve.
|Resulting PID settings read from Fuji PXG-4 and saved|
|Testing the PID controller in several steps ramping up the group temp|
After 26 minutes I pulled a delicious espresso and observed the group stabilising neatly.
|Warmup and one espresso at 26mins|