Analogue addressable fire detection systems are fire detection systems where sensors give analog signals for the phenomenon that they detect. The panel recognises the exact point of every device.
The selection of a suitable fire detection system essentially begins with the selection of the panel. Without any general rules to adhere to, the total size of the area, its usage, the construction materials and certain special requirements are factors that influence the size and type of the panel.
If we select a conventional system we begin by dividing the area into zones, taking care that:
- Each zone does not have an area greater than 2000 square metres.
- Each zone contains a clearly defined area, for example a floor level.
- The total electrical capability of the zone is not exceeded.
- The point of the fire can easily be located by someone that is in the vicinity of the zone.
If the required zones do not exceed six, and there is no need for future expansion of the system, then we can select BS-632, BS-634 or BS-636 panels. If the total zone requirements are greater, we select the expandable BS-116 fire detection panel with a BS-114 keyboard. This panel gives us the capability to design a system with as many zones as we require by adding more BS-116 panels in a network.
In very large areas, where it is required that the panel shows information on the exact location of the sensors that are activated, we must select an addressable system with one or more loops depending on the total covered area. Each loop has specific capacity (191 or 240 devices, depending on the system) and can theoretically cover approximately 5000 square metres. All the devices on the loop are connected on a 2-wire hook-up arrangement by which they are powered and communicate with the panel. In order to prevent a fault from disrupting the operation of the whole loop, line isolators are placed periodically between the detectors and the call points.
Product Description
- Addressable fire detection products are produced in accordance with EN54-2, EN54-4.
- There are 32, 64, or 96 zone capability for panels that are LPCB certified.
- The mains power supply is 220-240V AC.
- It offers two or four fully monitored siren outputs with a rating of 24V/0.5A and six programmable relays, as well as a built-in network circuit.
- Incorporates a power supply with a rating of 24V/100W and built-in battery charger for 24V batteries with a capacity of up-to 12Ah.
- The panels offer an extensive list of adjustments and characteristics for the control of the installed devices and sirens. These parameters can easily be adjusted using a PC-based program.
- The programming of the panel can also be done using a PC.
- Messages can be viewed on the big LCD (320×240 pixels) whereas LEDs are used to show basic operations such as alarms, faults and isolated sections.
- The operation is done using the built-in 16-key keypad.
- There is also an incorporated safety lock and a thermal printer mounting position.
- The maximum delay for the sirens is 4 minutes.
Peripherals
- Siren with Beacon, 100db
BSR-5031. Siren (IP42) for fire detection control panel.
- Fire Detection Call Point
BSR-5036/A. Addressable call point. When activated, this call point informs the panel of the precise location of the event while simultaneously lighting the incorporated LED. It has micro-switches that are used to set the address.
- Optical Smoke Detector
BSR-6055/A. Addressable optical smoke sensor. It has an internal “smart” chamber with a special transmitter and receiver. The sensor continuously sends digital information to the panel regarding the quantity of the smoke. The panel, using special algorithms, decides when to issue the alarm. The sensor has a special connection base and micro-switches that are used to set the address.
- Remote Detector LED
BSR-5072 is a remote indicator LED that is integrated with any addressable detector. It is installed away from the detector and lights up when a detector is activated.
For more information, go to www.olympia-electronics.gr
