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AW-BK901 Conventional beam smoke detector for firesfighting system
Standard :Compliance EN54-12
Fire Detection and Alarm Systems :BS 5839 Part 1:2002
Current Parameters Standby:23mA
Commission:40mA Alarm:33mA
Level 1: 2.6 dB High Sensitivity
Level 2: 3.4 Medium Sensitivity
Level 3: 4.8 dB Low Sensitivity
LED Indicator Guide Red: Fire ; Yellow: Fault ; Green: Alignment
1:The AW-BK901 reflective optical beam smoke detector incorporates a light transmitter and the detector on the
same unit. The light path is created by reflecting light emitted from the transmitter off a retro-reflector, meaning
it is reflects light back to its source with a minimum of scattering, which is placed opposite the detector.
2:In a fire, when smoke falls within the path of the beam detector, some of the light is absorbed or scattered
by the smoke particles. This creates a decrease in the received signal, leading to an increase in optical obscuration.
This unit decodes or analyzes received signals and compares to the pre-programmed algorithm stored on the processor.
3: Through this algorithm the detector will decide whether fire is defined or not and lead to enablement the
corresponding relays and LED indicators. The unit on the operating mode maintaining continually emitting light,
care should be taken that the activities in the space do not obstruct the beam or move the device to avoid false
operation of the detector.
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