Flash Rates And Trouble Indication - Bosch Analog Detector Series Installation And Operation Manual

8 en | General Information
–
–
The default smoke threshold level (STL) is 2.5 %/ft, 8.2 %/m.
The FAH-440 heat detector includes:
1.
2.
3.5

Flash Rates and Trouble Indication

The detector head has a multi-color LED to indicate operating, trouble and alarm condition.
To verify power to the detector and a functioning transmission of the analog adressable loop,
the LED indicator flashes green when operating normally (polling). Throughout its normal life
cycle, the smoke detector monitors and periodically compensates itself to keep the sensitivity
at its factory calibrated level. When the detector is excessively contaminated, this condition
will be annunciated at the control panel and indicated on the detector by the yellow flashing
LED.
In case of an alarm, the LED will change to steady red. The detector is set to normal, if the
alarm condition is reset by the panel and if the smoke and/or heat that caused the alarm has
dissipated.
Through panel parameter setting, it is possible to turn on or off operation of the polling or
trouble indicator. In the event of an alarm condition, the detector LED will always show a
steady red light.
Condition
normal operation
trouble condition / heavy pollution
alarm
ready for functional test
Table 3.1 Flash Patterns
F.01U.173.498 | 1.3 | 2012.02
3.25 %/ft (≤ 300 ft/min), 10.65 %/m (≤ 90 m/min)
3.50 %/ft (≤ 300 ft/min), 11.50 %/m (≤ 90 m/min)
Maximum alarm threshold range of +135 °F to +194 °F (+57 °C to +90 °C) and 17 possible
settings.
– 135 ºF (~ 57 ºC)
– 137 ºF (~ 58 ºC)
– 139 ºF (~ 59 ºC)
– 141 ºF (~ 61 ºC)
– 143 ºF (~ 62 ºC)
– 145 ºF (~ 63 ºC)
– 147 ºF (~ 64 ºC)
– 150 ºF (~ 66 ºC)
– 155 ºF (~ 68 ºC)
– 160 ºF (~ 71 ºC)
– 165 ºF (~ 74 ºC)
– 170 ºF (~ 77 ºC)
– 175 ºF (~ 79 ºC)
– 180 ºF (~ 82 ºC)
– 185 ºF (= 85 ºC)
– 190 ºF (~ 88 °C)
– 194 ºF (= 90 °C)
The default temperature threshold level (TTL) is 135 ºF (~ 57 ºC).
In addition, rate-of-rise feature (RoR) can be programmed on or off
Installation and Operation Guide
LED Flash Rate
green flashing
yellow flashing
red steady on
red once every two seconds
Analog Detectors and Bases
Bosch Security Systems, Inc.