Abus FUBW50020 Manuel d'utilisateur Page 28

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28
The diaphragms are attached on the panning/tilting module, as shown in Fig.7. Each
section of the detector lens covers a grid area of approx. 10°. [Fig. 7]
If you attach the detector so that adjacent areas are also included in the surveillance area,
turn the module and mask the beams horizontally or vertically which fall outside the area to
be monitored. To do this use the stickers supplied (long/medium beam mask) on the flat
back of the lens see the picture on the next page. When changing the lens, always
observe the correct position to keep the required detection range (marked TOP on top of
the Fresnel lens) see Fig.8.
Fig. 7
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