58300000111195_ARA_en_f.doc – 02.06.09 Seite 43 von 102
4.11.2 Detection springs
The drip tray features two tray contacts (A). When the drip tray is
pushed all the way into the appliance, the detection springs (B) catch
against the tray contacts from below.
Therefore the following states can be measured
► Drip tray is missing and
► Drip tray full of water
The detection springs are attached to a drawer which is accessible
when the rear panel of the appliance is opened.
4.11.2.1 Function:
Drip tray is missing: Detection springs 1 and 2 are not jumpered by
the tray contact I. The circuit is interrupted.
Drip tray inserted: Detection springs 1 and 2 are jumpered by the
tray contact I. The circuit is closed.
Drip tray is full of water: The tray contacts I and II are inserted into
the water. The electrical resistance between the tray contacts drops.
The circuit is closed via the detection springs 2 and 3.
Drip tray is empty: The tray contacts I and II are dry. The electrical
resistance between the tray contacts is infinite. The circuit between
the detection springs 2 and 3 is interrupted.
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