VDOT-ASD-100 Aspiration Detector
Velocity Detection
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VDOT-ASD-100 Aspirating Smoke Detector User’s Manual V1
Specification
Smoke Detection Principle
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Forward Light Scattering Mass Detection
Smoke Sensitivity
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Smoke Detection Range: 0.001~25%/m
-
Alarm Sensitivity Range: 0.005~20%/m
Sampling Pipe
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Material: ABS/UPVC
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OD: 25mm
Maximum Pipe Length
-
EN54-20 Class A: Maximum 40 holes totally
Single Pipe
ü
100m (18 holes)
ü
60m (25 holes)
Two Branch Pipes
ü
2x80m (2x15 holes)
Four Branch Pipes
ü
4x 60m (4x10 Holes)
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EN54-20 Class B: Maximum 60 holes totally
Two Branch Pipes
ü
2x60m (2x25 holes)
Four Branch Pipes
ü
4x 60m (4x15 holes)
*Note
：
Please refer to Velocity ASD Design manual for the relationship between pipe
length and the number of sampling holes.
The ASDFlow air sampling pipe network design tool can be used to calculate the
maximum transport time and sampling hole sensitivity.
&
Important Note:
Operation of the Detector beyond 12%/m obscuration is not allowed per the
National Fire Alarm Code (NFPA 72) guidelines.
