How can I eliminate False Fire Alarms?


Advanced Signal Analysis, or “ASA” Technology in a nutshell eliminates false fire alarms.

In this blog post we have a look at how this is achieved and what benefits this unique technology offers to a variety of application areas.

ASA detectors form part of the range of products within the Siemens Cerberus Pro fire detection and alarm system offered by Diamond Systems.

Why choose ASA?

Traditional detectors are unable to distinguish between smoke and other deceptive phenomena including:

  • Steam
  • Aerosols
  • Exhaust fumes
  • Cooking fumes
  • Cigarette smoke
  • Dust
  • Insets
  • Dry ice
  • Burnt toast

Consequently, these detectors are often the cause of many false fire alarms, which are an inconvenience to building occupants, a cost to the business owner, and an unnecessary drain on the resources of the fire and rescue service.

To minimise false fire alarms, detectors are usually isolated during for example theatrical performances involving dry ice, or in areas where cooking is currently taking place. Alternatively, heat detectors are installed in problematic areas, but these do not provide early indications of fire and therefore pose a big risk, perhaps an unacceptable one for many.

Thanks to innovation from global leader Siemens Building Technologies, there is now a more effective, robust solution to this problem, and it is called ASA technology.

How does the Technology Work?

ASA technology works by converting the recorded signals within the detector’s sensor into mathematical components. These components are then compared with the programmed values in real time using intelligent algorithms.  The intelligence of nine selectable parameter sets makes the detectors immune to deceptive phenomena, which in turn prevents unnecessary downtimes and costs caused by false alarms.  The selected parameter set dynamically adapts itself to the current situation. That means in case of a real fire, the ASA detector reacts more sensitively – and in case of deceptive phenomena, it is more robust.

Typical Application Areas

Detectors with ASA technology are the best choice for protecting especially demanding application areas, where you need highly advanced technology to ensure maximum safety and optimal protection – with no false alarms. Typical application areas include:

  • Data Centres
  • Industrial Production Facilities
  • Hospitals and Nursing Homes
  • Restaurants, bakeries and canteen kitchens
  • Garages and car parks
  • IT and telecommunications equipment
  • Entertainment venues utilising dry ice


Can my existing Fire Alarm system incorporate ASA technology?

Diamond Systems have successfully migrated numerous existing fire alarm systems to Siemens Cerberus Pro ASA Technology, with no downtime. Why not contact us to discuss your requirements.


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