Miele KM 400 Operating Instructions Manual page 15

When using large pots or pans, the
outer/extended zone can be turned on.
^ Turn the knob
the n position.
^ Turn the knob
the desired setting.
To turn off the outer/extended zone, turn
the knob counter clockwise to "0".
Each cooking zone is equipped with
overheating protection (internal
temperature limiter). This turns off the
heating elements in the cooking zone if
the ceramic surface becomes too hot.
past "12" to
Once the ceramic has cooled down to
a safe level, the heat will automatically
to turn back on.
The heating elements cycle on and off
to maintain a constant temperature.
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