Air Sampling Units

Although there are various brands of airsampling units we reccommend using Vesda equipment due to the sheer quality of this product

How VESDA Works

VESDA works by continually drawing air into the pipe network via a high efficiency aspirator. A sample of this air is then passed through a dual stage filter. The first stage removes the dust and dirt from the air sample before it allows the sample to enter the laser detection chamber for smoke detection. The second, (ultra fine) stage, has the unique feature of providing and additional clean air supply to keep the optical surfaces within the detector clear from contamination and to ensure the stable calibration and long life of the detector.

From the filter, the air sample is passed through to the calibrated detection chamber where it is exposed to a stable controlled laser light source. When smoke is present, light is scattered within the detection chamber and is instantly identified by the highly sensitive receiver system. The signal is then processed and presented via a bar graph display, alarm threshold indicators, and/or graphic display. The VESDA detectors are able to communicate this information to a fire alarm control panel, a software management system, or a building management system via relays or a High Level Interface (HLI).

Vesda & Airsense

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Air Sampling Units


Highly Sensitive Detection

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