Water Leakage Sensor (Optional); Alarm Via External Signal Generator (Optional) - hager WXH20 Serie Mode D'emploi Et Instructions De Montage

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Switching on cooker with activated child lock
Press operation button (3).
„
Switch on cooker/hob.
„
If the operation button (3) is not pressed first, the automatic child lock
switches off the power supply of the cooker after 5 seconds.

4.3 Water leakage sensor (optional)

The cookguard functions can optionally be extended with up to four water leak-
age sensors. If the sensors come into contact with water, a water leakage alarm
is triggered (Table 1). The status LED flashes blue slowly accompanied by an
acoustic signal.
Procedure with water leakage sensor:
Press the operation button (3) to acknowledge the water leakage alarm.
„
The acoustic signal and flashing status LED (5) go out.
Switch off power supply.
„
Remove the cause of the water leakage.
„
Clean and dry water leakage sensor(s) with a clean cloth.
„
Switch on power supply again and perform functional test.
„
If the water leakage sensor remains wet, it retriggers an alarm after 8
hours.

4.4 Alarm via external signal generator (optional)

The device has two potential-free contacts (Figure 6) e.g. that a KNX radio
binary input can be connected to. In this way, for example, an alarm signal can
be sent to the KNX bus and an alarm message is generated and displayed on
a care/alarm unit. The alarm signal remains activated until the alarm message
is acknowledged by pressing the button (3) on the sensor unit. The wiring of the
potential-free contacts and their meaning is shown in Table 3.
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AUX1 AUX 2 System status
No alarm message!
OFF OFF
Cooker switched off or no hazardous situation
Cooking activity is detected.
This status is activated immediately after switching on the
cooker. Depending on the intensity of the cooking, the si-
gnal is switched off 1 ... 30 min after finishing the cooking
OFF On process. This delay time can be used to:
- switch on e.g. an extractor hood or kitchen exhaust
using the signal that is present.
- perform an evaluation, how often cooking occurs, with
the signal change from OFF → ON.
Alarm!
A hazardous situation is detected and the cookguard swit-
ches off the power supply in case of danger, timeout or
overheating. The alarm state is also activated when the
water leakage sensor has tripped; even though the power
On OFF supply of the cooker/hob is not interrupted in this case.
The alarm signal can only be deactivated by pressing the
button (3) on the sensor unit.Water leakage sensor has
tripped The power supply to cooker is not interrupted. Le-
akage alarm is only switched off after pressing operation
button 3.
Service!
Fault on sensor or voltage interruption detected and power
On On
supply to cooker is interrupted. The exact error message is
displayed by pressing operation button 3.
Table 3: Output signals if external signal generator connected
The AUX output signal can also be reversed. The reversed signal can, for
example, be used to detect a cable breakage or if the power supply has been
interrupted completely.
If a KNX radio binary input is used, the usage of reversing AUX signals
may lead to a reduction of the battery service life of the radio binary input.
The AUX outputs can be connected in four ways (Table 4). Option 1 is to be
used for forwarding the alarm message in the private area.
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