Xtralis VESDA VLC-500, Руководство по эксплуатации продукта

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VESDA by Xtralis VESDA VLC-EX Product Guide
www.xtralis.com 3
2 Operation
An air sampling pipe network collects air samples from a protected area. The integrated aspirator draws air
into the sampling pipes through a pipe inlet manifold. For further information on air sampling pipe networks
please see the Pipe Network Design and Installation Manuals.
Some of this air flows to the dual stage filter. The first stage air filter removes dust and dirt from the sampled
air after which the sample flows to the laser detector chamber which is designed to detect the presence of
smoke.
Any smoke detected in the laser detection chamber is signaled to the main processor card. If the presence of
detected smoke is higher than the set thresholds it is reported as a Pre-Alarm or an Alarm depending upon the
alarm thresholds. The second stage filter further filters the air to produce ultra clean air. The ultra clean air is
used to clean the optical surfaces in the laser detection chamber.
Figure 2-1: Operation and internal air flow of the VESDA VLC-EX Detector