Important
A motion detector works following the principle of passive-infrared-
technique. With a PIR-sensor it detects moving sources of heat within
detection range.
before mounting, please observe the following remarks.
Mounting height
Higer than recommended
Lower than recommended
Ambient temperature
All indicated factors are based on an ambient temperature
of ca. 18°C
Temperature higher than 18°C
Temperature lower than 18°C
HF-Radiation
from direct vicinity, p.e. of wireless installations, might lead to incorrent
switching of the motion detector. This is, however, not a defect of the
detector.
Adjusting the detection range
Movement towards the sensor
Movement parallel to sensor
range increases
range decreases
range decreases
range increases
range decreases
range increases
GB
Fault analysis – practical tips
Fault
Cause
Remedy
Movement-detec-
tor switches on too
late
- frontal movement
- mount higher
- set the range
regulator
- mount higher
- set the range
regulator
Maximum range is
not attained
- movement-detector
- temperature difference
between surroundings
and source of heat is too
small
- defective fuse
- defective light bulb
- observe minimum
load of 40 w.
- change the fuse
- constant movement of heat:
The movement-detector is mounted over a
source of heat, e.g., a radiator.
Influence of sunlight, either directly or indirectly.
Lamp shines
constantly or the
lights switch on
undesirably
The lights are not
being switched on
