geberit 115907KJ6 Manual página 25

Functional principle
Several IR sensors are located behind the actuator plate of the WC flush control. These sensors scan
different detection ranges.
The user detection range (1) measures whether a user is sitting or standing in front of the WC flush control. If
a sitting user is detected, manual flush actuation is deactivated. This prevents a flush from being
inadvertently released if the user leans back during use.
If the user's hand crosses the boundary of the manual flush detection range (2), the WC flush control
releases a partial or full flush. If the user's hand is held briefly in the detection range, the WC flush control
releases a full flush. If the user's hand is held for an extended time in the detection range, the WC flush
control releases a partial flush.
The proximity detection range (3) is active only in battery operation and is used for the purpose of energy
saving. The user detection range is activated as soon as there is a change in this area.
Figure 1: Detection ranges
1 User detection range
2 Manual flush detection range
3 Proximity detection range
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