Structure and function
Function
3
23
Building Technologies
007016_i_en_--
Fire Safety 2012-09-07
Example of calculating the diameter of the core range depending on the detection
distance:
Known: Detection distance l = 100 m
Wanted: Diameter d of the core range
Adjustment options for the infrared ray
The infrared ray can be adjusted horizontally by a maximum of 10° in either
direction and vertically by a maximum of 5° in either direction. This adjustment
range can be used for an optimum positioning of the devices. In the case of
detection distances greater than 50 m, position the detector and reflector as close
to opposite one another as possible. This makes adjustment easier.
One turn of the knurled screw moves the infrared ray by approx. 0.8 m per 100 m
distance.
FDL
DLR
10°
10°
16 m16 m
100 m
DLR
1
Horizontal adjustment range
1 Diameter of the core
FDL
DLR
5°
5°
8 m8 m
100 m
DLR
1
Vertical adjustment range
1 Diameter of the core
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