The technical data sheet for the perimeter cable sensor for the NOWA 4S system (NOWDC010).
NOWDC010 - Perimeter detection cable
If the perimeter wire detects water, you must dry it before you can reset the alarm. To dry the perimeter cable, it is recommended to use a dry cloth and wipe it all along the twist part. A single drop of water present on the cable will prevent the alarm from being cancelled.
If the problem persists, it is recommended to check inside the connector between the twisted wire and the "lead wire" which allows to bring the detector to the desired location. In some cases, water gets inside the connector and create an alarm. It is also recommended to check the triangular detector where the cable is attached. If the triangle sensor detects water, it will also prevent the alarm from being cancelled. You can check the triangular detector datasheet for advice on drying it: NOWDSF300
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