Number Item
Cable-shaped water detector.
Wires to connect to the contact closure sensor.
You need a minimum of 30 cm wires to prevent the contact closure
sensor from being damaged by oor water (if any). Below are the wire
length limitaons:
• Minimum: 30 cm (11.8 inches)•
• Maximum: 150 cm (59 inches)•
How a Cable Water Sensor Works
The cable water sensor uses black wires on the water rope to detect the water. When water is present
between two black wires, the water sensor will trigger the alarm.
▶ Mechanical informaon about black wires:
• The distance between two black wires is about 0.3 in.•
• The distance from the black wire to the cable surface is about 0.05 in.•
▶
Water detecon requirements:
• The water spot must be at least 0.5" wide so that two black wires are in the water at the same me.•
When water is present between the two black wires the water sensor will trigger the alarm.
If the water spot is about 1" wide, the water sensor should detect it at any location of the
water rope.
• The thickness of the water spot should be at least 0.1" because there is some gap between any•
black wire and the cable surface.
This is why the cable water sensor does NOT work well with the concrete floor but works
fine with ceramic tiles. The concrete floor absorbs the water quickly so it needs more water
on the concrete floor to trigger the alarm.
• The alarm requires some water between two black wires for a while. If there are just few water•
drops on the cable water sensor, no alarms are triggered.
• The water sensor's rope should be mounted on the oor rmly, or the water sensor cannot detect•
the water.
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