Aspirating Smoke Detector System

An Aspirating Smoke Detector (ASD), sometimes referred to as a High Sensitivity Smoke Detector (HSSD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network of pipes that extend into a protected space to detect smoke.

The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by detecting the light scattered by them in the chamber.

ASDs can typically detect smoke before it is visible to the naked eye and often before visible smouldering takes place, before an open fire occurs and before intense smoke develops.

ASDs can detect fires significantly faster than point or beam smoke detectors enabling a fast response to the first signs of smoke. This early detection is vital to mission critical and high-risk applications.

The devices can also be set to a sensitivity state of a traditional point detector; this is used where access, aesthetics and the environment may be a concern within certain types of buildings.

ASD solutions with continuous air sampling provide the earliest possible warning of an impending fire hazard. ASDs buy the critical time needed to investigate an alarm and initiate an appropriate response to prevent injury, property damage or business disruption.

ASDs can deliver absolute protection across a wide range of industries and applications, such as:

• Correctional Facilities
• Computer Rooms
• Clean Rooms
• Cold Storage
• Cultural/Heritage
• Data Centres
• Hospitals and Healthcare
• Portable Switch Rooms
• Power Generation
• Records Storage
• Transportation
• Warehousing