SENSTAR MPS-4100, Руководство по эксплуатации продукта

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Coverage pattern
MPS-4100 product guide • • • 1 - 7
occurs at the maximum Transmitter-Receiver separation distance of 183 m
(600 ft.). Actual patterns will vary depending on the site topography and surface
conditions. Generally, lower mounting heights or a rougher surface will increase
pattern width.
The pattern height above the center-line will be approximately one half of the
pattern width. The protection pattern below center-line will tend to fill the area
between the beam center-line and the ground, except for a dead zone directly in
front of the Transmitter and Receiver.
The energy field development is not immediate, resulting in a dead zone in front
of the Transmitter and Receiver, in which it is possible to crawl under the pattern
undetected. For this reason it is necessary to overlap or offset Transmitters and
Receivers to cover this dead zone. Receivers and Transmitters should be offset at
least 4.5 m (15 ft.) at corners and 9 m (30 ft.) at midpoints in a linear array (see
Figure 1-5 and Figure 1-6).
Large nearby metallic objects such as vehicles, fences and
buildings can be detected well beyond the typical detection
envelope. Refer to Application note #1, Do’s and Don’ts: a
Figure 1-4 Typical MPS-4100 coverage patterns
2 m (6.6 ft.)
@30 m (100 ft.)
6 m (20 ft.)
@91 m (300 ft.)
12 m (40 ft.)
@183 m (600 ft.)