DAITEM SH148AX Installation Manual - Page 9

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7. Detection settings and configuration

7.1 Detection range

The detector's overall range is determined by
the lower beam range.
• The upper beam must always be parallel
to the ground
• The lower beam must be adjusted in
relation to the position of the lower lens (2
m or 5 m mark).
• Given that the 2 beams must be
simultaneously broken to trigger an alarm,
the detector range is limited to the lower
beam range as shown in the diagram
below.
A. no detection: only the lower beam is broken.
B. detection: the lower and upper beams are
broken.
C. no detection: only the upper beam is broken.
B
A
• The lower lens is factory-positioned for
detection at 5 m. If 2 m detection is
required:
1. Unscrew and open the front panel.
2. Unclip the lower lens and rotate it 180°
before repositioning it.
C
Inside front panel
Upper lens
Lower
lens
IMPORTANT: do not
remove the upper lens
23
• The detection range is determined by the
lower lens setting and the detector
installation height.
Detection table for lower lens set
at 5 m
Installation
0.8 0.9
1
1.1 1.2
height (m)
Detection range
6
7
7.5
8
(m)*
* Detection range data may vary in relation to atmospheric
conditions.
Detection table for lower lens
set at 2 m
Installation
0.8 0.9
1
1.1 1.2
height (m)
Detection range
3
3.5 3.7
4
(m)*
* Detection range data may vary in relation to atmospheric
conditions.
IMPORTANT
• The 2 m or 5 m indications on the product
should only be used to help position the
lower lens.
• To determine the detection range, please
refer to the tables above.
GB
8.5
4.2