Huawei FusionModule1000A40 Product Description page 85

FusionModule1000A40 Prefabricated All-in-One
Data Center
Product Description (Advanced Configuration, 208
V)
Figure 3-61 ASD
Working Principle
The detection unit includes the suction pump, filter, high-sensitive smoke detector,
and precision electrical analyzer. The air detector of the ASD can detect fire in the
initial phase and generates alarms at an early time.
The detection unit of the ASD sucks air samples from the monitored environment
through the air sampling pipe to the smoke detector and works out the dust
density in the air. If the dust density exceeds the preset alarm threshold, the ASD
blinks and sends an alarm signal to the monitoring module.
Features
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Issue 03 (2021-02-10)
High sensitivity
The ASD features extremely high sensitivity and wide sensitivity adjustment
range (0.005%–20% obs/m). It can detect both potential fire in the early
phase and particles released by the softened insulation layer of an overloaded
power cable.
Precise detection result
The ASD works in active air sampling mode. The efficient aspirator
continuously sends air samples from the protected area to the detection
chamber for analysis. The detection result and response time are less
influenced by air flow compared with a traditional fire detection method.
Flexible installation
The ASD detection unit is compact and easy to install. The air sampling pipes
can be deployed depending on site requirements. The air sampling pipes are
made of PVC and can be installed on or under the ceiling, under the floor, at
air return vents of smart cooling products, and in locations that need special
protection. For example, the sampling capillaries can be installed in a cabinet
to monitor equipment in the cabinet.
Convenient maintenance
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