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6 Mounting and start-up
6.1 General notes on mounting
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The front detection lens of the HM-Sec-MDIR operates on 4
detection levels, with 9 upper, 8 middle, 5 lower and 2 creep
zone segments. This means that, with an aperture angle of 90°, a
range of up to 12 m can be achieved. The figure below shows the
detection range of the main lens:
•
To provide an even greater level of security, the HM-Sec-
MDIR features “creep zone protection”, which ensures that an
intruder cannot circumvent the detection range of the main
lens by literally staying under the radar. An additional lens with
a detection range that points straight down is integrated in the
detector for this purpose. This mini dome lens has 17 segments
that cover an area of approximately 3.75 m x 3.75 m at a height
of 2 m. Its principal detection range can be seen in the figure on
the next page.
