3
5. Detection area
The square detection area of the presence detector guaran-
tees accurate and simple planning. Square detection areas
make it possible to cover a whole room with parallel swit-
ching. Note that seated and walking persons are detected in
differently-sized areas. The recommended installation height
is 2.0 m – 3.0 m. The sensitivity of the presence detector
decreases with increasing installation height. At an installa-
tion height of 3 m or higher, walking motions are necessary
and the detection areas of several detectors should overlap
in the marginal zones. The detection range is reduced as the
temperature increases.
Seated persons:
The presence detector reacts very sensitively to the slightest
movements. The details refer to smallest movements at table
height (approx. 0.80 m). The detection sensitivity is reduced
from an installation height of > 3 m. More pronounced move-
ments are required for clear detection.
Walking persons:
Use of the whole detection area.
o
0
1
2
3
4
1
4
2
3
3
2
1
0
m
seated
persons
walking
persons
Instal-
lation
height
seated persons
walking persons
2.0 m
9 m
2
3.0 m x 3.0 m
20 m
2
4.5 m x 4.5 m ± 0.5 m
2.5 m
16 m
2
4.0 m x 4.0 m
36 m
2
6.0 m x 6.0 m ± 0.5 m
3.0 m
25 m
2
5.0 m x 5.0 m
49 m
2
7.0 m x 7.0 m ± 1.0 m
3.5 m
---
64 m
2
8.0 m x 8.0 m ± 1.0 m
Brightness measurement
The presence detector measures artificial light and daylight
(opening angle for each approx. ± 30°). The installation loca-
tion is the reference point for the lighting level. The bright-
ness measurement can be adapted to the conditions in a
room with the room correction factor. The light measurement
area maps a rectangle of about 2 x 3.5 m at table height.
Direct light influences the light measurement. Avoid placing
floor lamps or suspended lighting directly below the detector.
L
With deactivated constant lighting control (reg. off), the
brightness measurement is switched off.
Fenster
Innen
2m
Suitable lamps
The presence detector is designed for the operation of fluo
-
rescent lamps, compact fluorescent lamps, halogen/incande
-
scent lamps and LEDs.
6. Installation
Flush-mounted fitting
The presence detector is flush-mounted using a size 1 stan
-
dard flush-mounting installation socket.
Ceiling installation
A ceiling installation box 73A is available for a simplified
ceiling installation of the presence detector (see accessories).
This also ensures cord grip and contact protection. The instal-
lation diameter is 72 mm (drill diameter 73 mm).
Surface-mounted installation
A back box 110A, protection rating IP40, is available for sur-
face mounted installation (see accessories).
