How VESDA Works: Early Smoke Detection

A great classic video showing how a very early smoke detection apparatus works. This video from ORR Protection shows an older device but its an excellent explanation of the mechanics of air sampling.

[@shubham.upadhyay.7912]

what if there is airborne dust or smoke from exhaust of diesel engine?

[@bhartiya_sanatan]

Sir, how much time laser chamber takes to send alert signal. As smoke reaches at laser beam. Means how much milliseconds??

[@keiserthaara6860]

Vesda is a active system which continually collectioair through multiple hole

[@keiserthaara6860]

Multiple sampling holes along the network of pipes, air sample flows to the air flow center through aspirator

[@bhartiya_sanatan]

@@keiserthaara6860 I know that but what is response time of system??