Product Information; How It Works - VESDA VLQ-100 Product Manual

VESDA by Xtralis
2

Product Information

2.1

How it Works

The VESDA VLQ detector continually samples air from the protected environment via two pipe inlets for the
sampling pipes on each side of the pipe inlets (A1, A2). Upon entering the detector, the air passes through
respective inlet manifolds (B1, B2) and the aspirators (C1, C2). The sampled air then enters the filter (D)
where the majority is exhausted out through filter exhaust (I2) and a portion from each inlet is separated into
two pathways, one pathway enters as clean air (E1,E2) and the other pathway enters as sampled air (F1,F2)
into the detection chamber (G). Sampled air is used for smoke detection and the clean air used for optics
protection. After smoke detection the air is exhausted out of the chamber exhaust (I1). Flow measurement is
performed at the chamber exhaust (H).
A1
B1
C1
E1
I2
www.xtralis.com
A2
B2
C2
D
F1 E2 F2
G
H
I1
Figure 2-1: Air Path
VESDA VLQ Product Guide
Legend
A Pipe Inlets
B Manifolds
C Aspirators
D Filter
E Clean Air
F Sample Air
G Detection Chamber
H Flow Sensor
I Exhaust
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