Bartscher IW 35 PRO Mode D'emploi page 34

Likewise, you can change the power level or temperature range without
changing the time.
NOTE!
If the time has not been set, the device automatically switches off after 120 minutes.
CAUTION!
Never place cookware without food to be heated.
Heating an empty pot or pan will activate overheating protection, an alarm will
sound, and the unit will turn off.
The digital display will show error message „E05".
Disconnect the unit from its socket and leave to cool for several minutes.
The unit will continue functioning without problems.
•
Ensure the heating surface does not get scratched, although scratches should not
impact the unit's functioning.
•
After cooking, remove the unit's plug from its socket - do not rely on the
cookware detection function!
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