How is fire detection done in high ceiling areas?

Beam-type smoke detectors should be included in the fire-detection system in places such as warehouses, factories, hangars, hypermarkets, atriums, museums that have high ceilings. The reason for this is that the ceiling height is limited to 11m for optical smoke detectors mounted on the ceiling. The ceiling height limit for detection with beam-type smoke detectors can be up to 25m.

Maxlogic Beam Type Smoke Detectors, produced by Mavili Elektronik, which has been working for 32 years in the fire and gas detection industry, are the detectors designed for this

Maxlogic Beam Type Smoke Detectors have been carefully designed for places with high ceilings, providing a great advantage in terms of cost and time compared to optical smoke detectors in installation (installation and wiring) and operation (maintenance and calibration).  

Maxlogic Beam Type Smoke Detectors, which are used to detect fire in interiors with high ceilings are produced using high technology for both addressable and conventional systems. In the case of detectors consisting of a receiver and a transmitter, the receiver and transmitter can be positioned at different distances from 5m to 100m in the locations that are in each other’s field of vision. The infrared beam sent from the transmitter normally falls on the receiver without any obstruction, but the detector gives a fire alarm when smoke from a fire reduces the amount of beam falling on the receiver.

Another model consists of a transceiver unit and a reflector. The transceiver unit and the reflector are positioned so that they see each other mutually. While the distance between a single reflector and the transceiver is minimum 5m (maximum 35m, extendible up to 50m with four reflectors). The infrared beam sent from the transceiver unit normally falls on the reflector without any obstruction. The rays reflected from the reflector also fall back to the transceiver unit. Just like in the case of a receiver and a transmitter, the detector gives a fire alarm when smoke reduces the amount of beam falling on the receiver.

The user can set an alarm level for the detector. These alarm levels, which can be determined at the rates of 25%, 35% or 45%, determine to what extent the beam from the transmitter is blocked while reaching the receiver, and therefore when the detector will enter the alarm state. Optical contamination or shifts in the signal axis, which develop over time, may cause a decrease in the amount of beam falling on the receiver, just as in the blocking of light. The detector automatically adjusts itself so that this does not cause false alarms. When the blocking rate of the light is suddenly more than 90%, the detector gives an error alarm because it is thought that a solid object may be in front of the detector.

Thanks to all these advanced features, Maxlogic Beam Type (Beam) Smoke Detectors provide much more effective results in protection against fire hazards by offering appropriate detection for the area.

For more information, go to www.mavili.com.tr/en