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FIRE SERVICE AND GENERAL FIRE SAFETY TOPICS => Technical Advice => Topic started by: batesy154 on March 02, 2009, 11:22:18 PM

Title: Gent Vigilon & Smoke Detectors
Post by: batesy154 on March 02, 2009, 11:22:18 PM
I was recently sent to test a Gent Vigilon system. The Smoke Detectors would not go off into a fire state no matter how much smoke I put into them. I did take down the type of device but I mislaid the sheet that I had the details on. If any of you know what type of detector that I am trying to test could you tell me how they should be tested?
Title: Re: Gent Vigilon & Smoke Detectors
Post by: Big_Fella on March 02, 2009, 11:35:07 PM
Most probably a dual optical heat sensor.  They will not activate with a standard smoke aerosol tester.  You need to put the panel into test mode which effectively allow these detectors to activate.

Alternatively it could have been a heat sensor or Co sensor, or combination of them all.

The dual optical element overcomes unwanted alarms, and the state of the sensor is set at the control panel.  Algorithms of set smoke patterns are within the control panel software to also overcome false alarms, hence why you cannot set the sensor off, as it doesn't see it as 'real' smoke.

Hope this helps
Title: Re: Gent Vigilon & Smoke Detectors
Post by: kurnal on March 03, 2009, 08:03:05 PM
It could have been a multi sensor head such as the S Quad often used on a vigilon system, and configured as a heat detector?
Title: Re: Gent Vigilon & Smoke Detectors
Post by: batesy154 on March 04, 2009, 06:39:02 PM
Most probably a dual optical heat sensor.  They will not activate with a standard smoke aerosol tester.  You need to put the panel into test mode which effectively allow these detectors to activate.

Alternatively it could have been a heat sensor or Co sensor, or combination of them all.

The dual optical element overcomes unwanted alarms, and the state of the sensor is set at the control panel.  Algorithms of set smoke patterns are within the control panel software to also overcome false alarms, hence why you cannot set the sensor off, as it doesn't see it as 'real' smoke.

Hope this helps


Thanks Big Fella, much appreciated