Beam smoke detector

An optical beam smoke detector is a device that uses a projected beam of light to detect smoke across large areas, typically as an indicator of fire. They are used to detect fires in buildings where standard point smoke detectors would either be uneconomical or restricted for use by the height of the building. Optical beam smoke detectors are often installed in warehouses as a cost effective means of protecting large open spaces. Reflected Beam Smoke Detectors are designed for spacious rooms, open areas, and high ceilings.

With only one device to install and align, these single-ended optical beam solutions saves you time and money on large area applications. Beam Smoke Detection System Beam detection has become commonplace within large open areas, such as atriums, warehouses, etc. Beam Detectors are cost effective when compared with using point detection and suitable for heights way above the operating limits of conventional smoke detection.

The Optical Beam Smoke Detector works on the principle of light obscuration. The photosensitive element of the Optical Beam Smoke Detector sees light produced by the Transmitter in a normal condition. The Receiver is calibrated to a preset sensitivity level based on a percentage of total obscuration.

If the beam depth is equal to or greater than , a smoke detector shall be placed on the ceiling within each beam pocket. Keep in mind that more than one smoke detector may be required to cover a given beam pocket. Smoke in the beam path will reduce the received infrared light proportionally to the density of the smoke. The detector analyzes this attenuation or obscuration of light and acts accordingly.

What are two types of smoke detectors? What elements are used in smoke detectors? Can smoke detectors detect smoke from cigarettes? Where can you buy smoke detectors?

Unlike point type optical smoke detectors , the response of beam smoke detectors is generally less sensitive to the type and color of smoke. Therefore, a beam smoke detector may be well suited to applications unsuitable for point optical smoke detectors , such as applications where the anticipated fire would produce black smoke. The reflected infrared light is detected by the receiver and analyzed.

Photoelectric smoke detection uses a steady beam of light. When it comes to smoke alarms, there are two main types: photoelectric and ionization. Unlike spot‑type photoelectric smoke detectors , beam -type smoke detectors are generally less sensitive to the color of smoke. A beam ‑type smoke detector might be suited to applications inappropriate for spot‑type detectors , such as applications where the anticipated fire would produce black smoke.

If the environment is considered to be hostile then the colder alarm threshold settings should be used. The beam detector should not be installed in. Listed for operation from –22°F to 131°F, the BEAM3and BEAM355S are usable in open area applications where temperature extremes exceed the design limits of other types of smoke detection. Each detector consists of a transmitter, a receiver, and a remote.

Smoke stratification may be overcome by mounting multiple beam detectors at different heights, one of which will project an infrared beam below the heat layer and into the smoke layer. Detection time will be longer in a building with a peaked roof if a fire occurs at the fringes of the protected area. If in doubt conduct appropriate smoke tests.

Notifier Fire Alarm System. Initiating Devices – Beam Smoke Detector. UL listed products must comply with NFPAEnsure clear line of sight between Detector and Reflector – it is recommended at least 0. Mount securely to solid structural surfaces Position beam as high as possible, but with a minimum distance of 0. Check Out Top Brands On eBay.