FL 128 Multizone System 15.01.2021 8
In the event of an alarm the appropriate relays activate providing a “clean contact” output for connection to a
remote monitoring system, BMS etc. Although the mute button being pressed can silence the buzzer the relay
outputs can only be cancelled by using the control unit’s menus.
The standard output relays can also be linked and the three options available are:
1. Individual Alarm Outputs.
2. Leak Detected and System Fault Linked, Mains Fail and Self-Test Linked.
3. Leak Detected, System Fault Linked, Mains Fail and Self-Test Linked.
This allows for a common output to a BMS etc. DIP switch SW1 on the mother board sets the above linking
option and the various setting are shown on the diagram in Appendix A.
Floodline Sensors
The Floodline range of dedicated water (and other liquid) detecting, or sensing devices can be used in any
length, number, or combination to satisfy the particular requirements of the installation.
• Single Zone Detection Tape.
• Multi -4- Zone Detection (Sensing) Cable.
• Multi -8 -Zone Detection (Sensing) Cable.
• Point Sensors.
• Flexi-Pad Sensors.
• Pipe-In-Pipe/Overflow Sensor.
• Oil Sensor.
Sensing devices are installed to monitor liquid leaking from wet services, pipes, tanks, drains, roofs, etc., and
can be applied in a wide variety of ways. For example:
Multi-Zone Detection (Sensing) Cable/Tape may be laid under raised floors, in drip trays, laid on top of
suspended ceilings or attached directly to pipes (not multi-8-zone cable). Point Sensors (or Oil Sensors) may
be used in bunded areas and floor trenches or fixed at floor level at strategic points around the room or site.
Flexi-Pad Sensors may be wrapped around pipe joints or valves or inserted into confined spaces. Pipe-in-Pipe
Sensors may be mounted directly into overflow pipes and double skin/double containment pipes. All sensors
(except Oil Sensors) react to water and other aqueous liquids. Oil Sensors will react to ANY liquid and are
designated “OIL” to differentiate them and to reflect their usual application.
In common with all types of leak detection system the liquid must physically contact the sensor for the
alarm to be activated.
ALL devices can be wetted and dried repeatedly unless contaminated with a liquid or substance, which
irrevocably changes the electrical characteristics of the device or leaves a coating or residue, which
prevents correct functioning.
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