FL 128 Multizone System 15.01.2021 36
The M8- detection cable should not be tie-wrapped to pipes (– use M4 detection cable instead)
As with all Floodline sensors water contacting the cable changes its electrical characteristics (resistance).
When the change is sufficient an appropriate alarm will be generated at the Floodline panel.
The M8 detection cable has an outside diameter of 4.5mm. A tough all LSOH polymeric construction
makes it tough, durable and resistant to abrasion but it is also flexible enough to lie flat or be easily
shaped.
Although tough and durable the multi-8-zone detection cable is a sensing device and should be
treated as such
The M8 detection cable is available in 5,7.5, 10, 15 and 30m lengths as standard (different lengths can
be made to order) and simply plug into the special plug and play junction box (see below for connecting
details) this makes installation of the system quicker and simpler.
Fix & Connecting to Floodline Panel and Junction Boxes
The multi-8-zone detection cable is laid flat on the floor in the pre-determined pattern. A SOL Junction
Box is used to connect the detection cable “string” to the leader cable coming from the control panel
and Auto-coupler Junction Boxes are used to split the cable into separately reporting zones (up to 8
zone per-string). At the end of line an EOL Junction Box is used to terminate the string.
A diagram of the connection details for the M8 Plug and Play sensors is presented in Appendix
D-2
The detection cable is usually fixed with screwed “P” type clips or pin-plugged “Tower” type clips. Both
these techniques involve drilling and although self-adhesive clips or hot-melt adhesive clips may be
used, they are only possible when the surface is clean, dry and non-friable. Clips are usually spaced at
3m intervals and must hold the cable loosely to allow air to circulate around the cable. Once the
detection cable is laid, identification/warning tags should be attached at 3m intervals to warn of its
function.
The table below shows the colour coding used for connection to the zone inputs. The number of cores
used depends on the number of zones used on a particular string.
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