Function
25
Building Technologies
009865_b_en_--.doc
Fire Safety & Security Systems
11.2007
5.9
Parameter sets of the radio smoke detector DOW1171
The alarm activation sensitivity for radio smoke detectors DOW1171 can be set for
each detector point.
The table below lists the possible parameter sets and the average reaction times
with test gas:
Parameter set no. Parameter set name
Average reaction time with
test gas [s]
1 (Default)
No verification
Test, applications that are
not prone to deceptive
phenomena
15
2 Short
verification
period
60
3 Medium
verification
period
85
4 Maximum
verification
period 105
5 Maximum
verification
period,
additionally with strong filter
105
5.10 Power
supply
Power supply of the radio gateway is normally ensured via the FDnet detector line.
Short-term power failures (< 5 hours) on the detector line can be bridged by the 9V
battery.
