Found out that of you press the down button for 15 seconds the locked tray will travel down, ( the oven locked itself because of thermocouple issue and became inoperable)and there is zero mentioned in manual, thanks Dekema
now after changing thermocouple and running the calibration ring and did the measurements after firing, no idea how to adjust hi temp. It seems that everything has to be done through a dealer, if I am not mistaken … amazing .
Any ideas from owners of the Dekema basic sintering furnace on how to adjust hi temp from measuring calibration ring? I am rereading the manual again.