© CIAS Elettronica S.r.l. Ed. 1.0
Installation Handbook page 30 of 59 MANTA 50 – 80
2.3 Ground conditions
It is inadvisable to install the equipment along sections with tall grass (more than 10 cm),
ponds, longitudinal waterways, and all those types of grounds whose structure is rapidly
mutable.
2.4 Presence of Obstacles
The fences, are generally metallic therefore highly reflecting hence causing various problems,
for this reasons some precautions are suggested:
- first of all, make sure that the fence has been properly fixed in order that the wind does
not move;
- if it is possible the microwave beam should not be placed in parallel to a metallic fence, is
necessary to create a corner with it;
- metal fences placed behind the equipment night cause distortions to the sensible beam
especially, and might cause movement detection in unexpected spots, with subsequent
likely generation of false alarms;
- in case of Mw barrier should be installed in a corridor between two metallic fences, the
width of the corridor should be not less to 5 m; if less contact CIAS technical assistance
Along the section, within the area of the protection field, are allowed pipes, poles or similar (e.g.,
lamp posts) as long as their dimensions, with respect to the protection beam, are not too
excessive. The trees, hedges, bushes in general, need very great attention if near or within
the protection beams. These obstacles vary in size and position, in fact they grow and they can
be moved by the wind. Therefore, it is absolutely inadvisable to tolerate the presence of the cited
obstacles within the protection sections.
Figure 2
It is possible to tolerate the presence of these elements near the protection sections only if their
growth is limited through routine maintenance, and if their movement is stopped through
containment barriers. Various Obstacles might be present along the protection sections. For
them there is the need to make the same considerations and take the same necessary
precautions adopted for the above cases. This cause of Dead zones not protected and Hyper
sensible zones which cause false alarm.
To Next Page
Loading...
