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Fire Alarms and Detection Systems
Security Masters specializes in the design, supply, installation, commissioning, service and maintenance of Fire Alarm Systems, Emergency Lighting systems, Testing & Certification, Industrial and Commercial Design, Planned Preventative & Reactive maintenance.
Analogue Fire Alarm Systems
Analogue Fire Alarm Systems are often known as Intelligent Fire Alarm Systems. There are several different types of Analogue Systems available on the market which is determined by the type of protocol which they use.
The bulk of Analogue Detectors available are fairly basic as the Detectors can only give output signals representing the value of sensed phenomena.
It is left up to the Control Unit to decide whether there is a fire, fault, pre alarm or whatever. With a true Intelligent Analogue System each detector effectively incorporates its own technology which evaluates the environment around it, and communicates to the Control Panel whether there is a fire, fault or the detector head needs cleaning.
Their primary purpose is to help prevent the occurrence of false alarms. With the Analogue Addressable System up to 127 input devices i.e.: Smoke Detectors, Call Points, Heat Detectors, Contact Monitors and other interface devices may be wired to each detection loop.
Addressable systems
The detection principle of an Addressable System is similar to a Conventional System except that the Control Panel can determine exactly which detector or call point has initiated the alarm.
The detection circuit is wired as a loop and up to 125 devices may be connected to each loop. The detectors are essentially Conventional Detectors, with an address built in. The address in each detector is set by dill switches and the Control Panel is programmed to display the information required when that particular detector is operated.
Additional Field Devices are available which may be wired to the loop for detection only i.e. it is possible to detect a normally open contact closing such as sprinkler flow switch, or a normally closed contact opening. Sounders are wired in a minimum of two sounder circuits exactly as a Conventional System.