A fire alarm system is a set of electric/electronic devices/equipment working together to detect and alert people through visual and audio appliances when smoke/fire is present. These alarms may be activated from smoke detectors, heat detectors, water flow sensors, which are automatic or from a manual fire alarm pull station. Types of Fire Alarm System: All Fire Alarm Systems essentially operate on the same principle. If a detector detects smoke or heat or someone operates a break glass unit (manual break point), then alarm sounders operate to warn others in the building that there may be a fire and to evacuate. It may also incorporate remote signaling equipment which would alert the fire brigade via a central station. Conventional Fire Alarm System In a Conventional Fire Alarm System, a number of call points and detectors are wired to the Fire Alarm Control Panel in Zones. A Zone is a circuit and typically one would wire a circuit per floor or fire compartment. The Fire Alarm Control Panel has a number of Zone Lamps. The reason for having Zones is to give a rough idea as to where a fire has occurred. This is important for the fire brigade and of course for the building management. The accuracy of knowing where a fire has started is controlled by the number of Zones a Control Panel has and the number of circuits that have been wired within the building. The Control Panel is wired to a minimum of two sounder circuits which could contain bells, electronic sounders or other audible devices. Each circuit has an end of line device which is used for monitoring purposes. Addressable Fire Alarm System The detection principle of an Addressable System (Fire Alarm 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 multi 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 dil 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. Fire Alarm System comes with single loop as well as multi loops. It depends on requirement. The items which are integrated with Fire Alarm Systems are given belowâ?¦. Brands are available : AGNI, MORLEY, NOTIFIER, Modern Technologies gives you top class branded Fire Alarm System with affordable price. We also provide installation & maintenance services.
1. 230v ac supply 2. 24v dc operation. 3. 20 detectors per zone 4. Visual as well as audio annunciations provided 5. Inbuilt battery back up circuit 430*350*140mm
Intelligent fire Detection system as a high efficiency and low cost unmanned fire detection system in capable of an early detection regardless spontaneously fire or firebug. This system is located in outdoor area such small and middle sized cultureal assets, natural monument and outdoor facilities.
The 4001 non-addressable control and indicating equipment forms the central part of a fire detection and alarm System.The 2-wire 4001 is compatible with numens non-addressable devices. The 4001 comes standard with features that allows flexibility and expandability. Default configuration programming Facilitates out-of-box installation and rapid commissioning. 2, 4, 8, or 16 detection zones Up to 32 non-addressable devices per alarm zone circuit Configurable non-latching alarm zones, alarm dependency (zone coincidence detection), and output delay timer 3 access levels Single-person test mode Day/night mode Manual activation of audio/visual alarm devices Supervised auxiliary dc 24 v output 2 independently programmable non-addressable a/v alarm output circuits 2 programmable fire alarm relay outputs Fault relay output 3 voltage-free inputs for remote reset, evacuation start/stop, and day/night mode Supports up to 7 repeater panels
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Supplier: Fire alarm systems
Supplier: Fire alarm system
Specifications:- * Control key switch * Mains healthy indicator * Continuous alarm signal * Built-in battery * Polarity protection for battery * Push buttons for Evacuate, Reset and Alarm silence * Monitored alarm circuits for both open and short circuit * Individual sounder circuits for zones (optional) * Indicators for charger fault and battery fault * All controls are on front fascia * Knockouts on top and bottom sides for easy installation * Main supply - 240 V AC +/- 10%, 50/60 Hz * Battery supply - 24 V DC (Sealed Lead Acid) * Glass fuse protection - Main supply, Charging voltage, Sounder circuit, Reserve battery connection * Auxiliary relay contacts -30 V DC, 1 A, NO/NC
Supplier: Fire alarm system
