FL 128 Multizone System 15.01.2021 30
Returning Sensor to Use
The single zone detection tape can be wetted and dried any number of times as long as it does not
become contaminated with a substance which irrevocably changes its electrical characteristics.
Eg.vending machine syrup, some chemical floor treatments, paint etc. The detection tape will dry out
naturally and the effected part of the cable must be completely dry before the zone can be reset. This
may take 20 minutes to 2 hours or more depending on the environmental conditions and the length of
tape wetted but increased air circulation and warmth will speed up dying time. If a length of tape seems
to take an excessive time to dry out water may be trapped in the retaining clips which should be eased
to expose the wet area to the air.
The tape may be damaged if it is completely immersed for long periods. In the event of this, or any other
damage only the affected section of tape (either all or part of a zone) need be replaced with a new
length of detection tape easily jointed in.
Multi –4-Zone Detection (Sensing) Cable
Introduction
The Multi-4-Zone Detection Cable is more sensitive than the Multi- 8 Zone version. It senses water
anywhere along its entire length and one continuous length of cable can be divided into 4 separately
reporting zones using special Floodline 4 Zone Junction Boxes. Typical applications include:
• In voids below raised floors.
• Above Suspended Ceilings
• Tie-wrapped to individual pipes.
• Run in drip trays.
• Laid around the base of plant, apparatus, or tank.
• Laid in loops or wave pattern for general monitoring of larger areas.
• No minimum or maximum zone length.
As with all Floodline sensors water contacting the cable changes its electrical characteristics (resistance)
and when the change is sufficient the Floodline panel, to which the sensor is connected will generate
the appropriate alarm.
The multi-4- zone detection cable has an oval construction of 4.5mm by 7.5mm. The outer braid of the
sensor is of a woven polyester construction, which makes it durable and resistant to abrasion. The inner
cores of the sensor are PVC/PVC and the detection cores, which are used to monitor the changes in the
sensors electrical characteristics are wrapped in a permeable non-woven cellulosic material.
The multi-4-zone detection (sensing) cable although durable is a sensing device and should be
treated as such.
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