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VESDA Air-sampling Smoke Detectors work by:

  • Continually drawing air into a pipe network attached to a detector unit.
  • Passing the air through a dual stage filter to remove dirt
  • Sending the clean air to a laser detection chamber for smoke detection.
  • Measuring the light scatter caused by any smoke
  • Processing the detector signal and presenting the smoke level graphically
  • Communicating the information to a fire alarm control panel, a software management system or a building management system.

Here is a fantastic Quick Time Video from Xtralis on how VESDA works.

There Are 2 Responses So Far. »

  1. Pls sent the FM200 gas VESDA WLD Information for my ID.

  2. Always remember to leave a sampling hole available at the end of the tube to ensure that the system can be tested to BS5839-1:2002

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