User Manual

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62
Fire & Security Products
Siemens Building Technologies Group
06.2002
4 rows of detectors with no row of detectors in the ridge (result from Fig. 75)
The minimum number of detectors M calculated with A/A
M
.
The result is then rounded up to the nearest figure which is di-
visible by 4.
1/2x
x
l
b
1
b
2
Detector spacing x is:
x + 4
1
M
My My My My
Fig. 79 Longitudinal arrangement of detectors with 4 rows of detectors with no row of
detectors in the ridge