Buildings, walls and other structures
Page 12 FlexZone Product Guide
Gates should consist of fence fabric on a rigid frame that includes horizontal and vertical bracing.
• Firmly attach all gate hardware accessories (minimum free-play).
• Make sure that double gates have travel stops (rigid anchors).
• Prevent locking hardware from moving in the wind.
• Prevent sliding gate track hardware, supports, guides, etc., from rattling in the wind.
There are three ways to protect gates with the FlexZone sensor system:
• The wireless gate sensor (WGS),
• FlexZone sensor cable,
• An alternate sensor technology (e.g., a microwave sensor).
Gates that are not protected by the wireless gate sensor, or sensor cable, are bypassed via
software (see Figure 48:
). The sensor cable is installed inside conduit, underground, from one
side of the gate to the other, and the bypassing cable is set as non-detecting (it does not report
alarms). The sensor cable continues beyond the gate, and another technology is used to provide
protection in the area of the gate.
Occasionally, it is not possible to dig underground to continue the active coverage on the other
side of a gate. There are three standard solutions for this situation:
• Install the cable on the ground surface, under a secured, protective cable mat.
• Terminate the cable at the gate.
• Connect the cable across the gate using quick-disconnect connectors.
Buildings, walls and other structures
FlexZone can be used to detect intruders attempting to cut, saw, chisel, drill, or smash their way
through building walls, ceilings, roofs, floors, or stock cages. FlexZone sensor cable can be
attached to the structure using commercially available fasteners such as cable ties or nail-clamps
that ensure good contact between the sensor cable and the protected structure. The fastening
devices must not flatten or distort the sensor cable at the attachment points. Sensor cable can also
be installed inside metal conduit, which is attached to the protected surface. Due to the great
variation in building materials used in structures, Senstar recommends a trial installation on a
representative section of the structure before making the full installation.
Environment
For installations in environments which include hot sunny periods, install a sun shield to protect the
enclosure from direct sunlight, or install the enclosure in a shady area. Extra care must be taken at
sites that experience strong winds on a regular basis. The fence must be well-maintained to
prevent any metal to metal contact caused by the wind. All vegetation (weeds, brush, trees, etc.)
must be cleared from around the fence area. Vegetation must not touch or hang over the fence
fabric. Any objects that may contact the fence must also be removed from the perimeter. For sites
that experience snowfalls in the winter, the fence must be kept clear of accumulating snow. Snow
can dampen the vibrations that the FlexZone sensor uses to detect intrusions. Accumulated snow
can also serve as a bridging or tunneling aid for breaching the perimeter fences.
Note The ambient temperature, as measured inside the enclosure, must be
within the range of -40 to +70º C (-40 to +158º F).
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