Arenas, atriums, auditoriums, ballrooms, churches, factories, museums, and warehouses are typical areas. Clarification is required in nfpa 72 on how to apply smoke detection spacing requirements for these high ceiling applications. Up to 2 detector heads can report to a single ground level controller. Alignment is easily accomplished with an optical sight and a twodigit signal strength meter incorporated into the beam detector. Fire alarm devices are needed to start the fire protection process. System sensor beam 1224 series singleended reflected type beam smoke detector description the system sensor beam1224 series 4wire projected beam smoke detector is unique ly suited to sense smoke in open areas with high ceilings where spottype detectors are difficult to install and maintain.
The detector analyzes this attenuation or obscuration of light and acts accordingly. Model fsb200fsb200s is a long range projected beam smoke detector designed to provide open area protection. Nfpa 72 fire alarm system washington county, oregon. Some fire codes specify spacing on a given centertocenter distance between detectors under ideal conditions. Bosch power tools smoke alarm beam smoke detector user manual. Smoke detector location correct smoke detector location and spacing is critical in a properly installed and operating fire alarm system. Smoke detector spacing on level ceilings with beams and joists. Singleended reflected type projected beam smoke detector. It relies on the smoke that is formed due to a fire that passes between a bulb and an ldr, such that the quantity of light falling on the ldr decreases. Each detector consists of a transmitter, a receiver, and a. Once the detector head is installed, using the easyfit mounting system an integral laser can be activated.
Intelligent singleended reflective imaging beam smoke detector. On beam reduction rules as per nfp72, or an manufacturers rules is there a consideration for low ceilings do reduction rules on detector spacing apply the same if the ceiling is relatively low. Ul listed products must comply with nfpa72 ensure clear line of sight between detector and reflector it is recommended at least 0. It is to be used with ullisted, separately supplied power 4wire control panels only.
Osirss, osirass conventional reflective imaging beam. On smooth ceilings, 3060 feet between projected beams and not more than onehalf that spacing between a projected beam and a sidewall. Detector spacing beam contruction ceiling 2014 additions for smoke detectors if ceiling is level, beam is 10% of ceiling height and a. Smoke, heat, and duct detectors application bulletin.
The projected beam smoke detector shall possess circuitry that automatically. While this is only a recommendation, virtually all manufacturers of smoke detectors follow this. Fsb200, fsb200s singleended reflected type projected beam smoke detector 12 clintonville rd. Oct 01, 2006 however, smoke detectors can be installed up to 41 feet apart in corridors up to 10 feet wide. Detector installation must comply with local regulations. Guide to fire alarm detectors 20061001 sdm magazine. 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. The spottype listed spacing equates detector operation with the opening of a standard sprinkler head within 2 minutes 10 seconds located 10 ft.
When testing smoke detectors, be sure you use an aerosol or canned smoke that is acceptable to the manufacturer. Projected beam features smoke detector gamewellfci. These settings shall be capable of being verified with calibrated filters. This wide detection path is more effective than the tiny sensor chamber of a point detector. In many cases, however, the location and sensitivity of the.
Where beam spacing is equal to or greater than 40 percent of the ceiling height 0. Smoke in the beam path will reduce the received infrared light proportionally to the density of the smoke. Guide to using optical beam smoke detection optical beam. Whether it is a manual pull station, smoke detector or waterflow alarm, if something does not activate the fire alarm system, nothing happens. For best results, place and space the detectors according to nfpa.
Osid by xtralis provides reliable, costeffective smoke detection for open spaces where fire detection presents unique challenges and. Intelligent singleended reflective imaging beam smoke. Siting of manual call points siting of point type heat and smoke detectors siting of beam detectors. Yemitter spacing must comply with local codes and standards b. By using advanced dual wavelength projected beams and optical imaging technology for early warning smoke detection, osid provides a lowcost, reliable and easytoinstall solution that overcomes typical beam detection issues such as false alarm incidents.
So as a rule of thumb and a quick recap, here are my recommendations with regards to smoke detector types and applications. Plus if this also controls a smoke removal system, need to coordinate with all other systems. Jun 27, 2018 a where beam spacing is equal to or greater than 40 percent of the ceiling height 0. Copies of this manual are available from system sensor. System smoke detectors 2 the purpose of this guide is to provide information concerning the proper application of smoke detectors used in conjunction with fire alarm systems. Correct smoke detector location and spacing is critical in a properly installed and operating fire alarm system. The guide provides information on the proper utilization of beam smoke detectors in lifesafety and property protection applications. The device in a reflective beam smoke detector which projects and monitors the light across the protected area.
Beam detectors are more effective at height because as smoke rises it spreads effecting a larger area and in doing so affects more of the beam path. Each detector consists of a transmitter, a receiver, and a remote. Smooth ceiling spacing in the direction parallel to the beams and at onehalf smooth ceiling spacing in the direction perpendicular to the beams ii. C general the johnson controls fsb200 and fsb200s are intelligent, addressable reflected beam smoke detectors for protecting open areas with high and sloping ceilings, and wideopen areas, where spottype smoke detectors are difficult to install. Smoke entering the area between the transmitterreceiver and reflector causes a reduction in signal. It can also cause the light to scatter due to reflection off the smoke particles. When securing the detector to the mounting surface, mount the imager first so that the approximate edges of its field of view can be determined. Firstly lets look at other forms of detection that are typically used and why we would choose beam detection in their place. It outlines basic principles that should be considered in the application of early warning fire and smoke detection devices.
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. Although beam smoke detectors are not suited for all applications, they may be the detector of choice in many applications where spottype detec. Listed for operation from 22f to 1f, the beam355 and beam355s are usable in open area applications where temperature extremes exceed the design limits of other types of smoke detection. The projected beam smoke detector shall be field adjustable to one of the obscuration settings of 25%, 50%, or 70% per span. General description system sensor model 6424 is a long range projected beam smoke detector designed to provide open area protection. Model sk beam sk beam t is a long range projected beam smoke detector designed to provide open area protection.
Other spacing may be used depending on ceiling height, airflow characteristics, and response requirements. Guide to using optical beam smoke detection optical beam detection provides an economical solution for detecting smoke in large open space areas such as shopping malls, warehouses and airports. This kind of circuit is called an optical smoke detector. Beam1224, beam1224s singleended reflected type projected beam smoke detector 3825 ohio avenue, st. Skbeam, skbeamt singleended reflected type projected. The area that an optical beam smoke detector is considered to effectively sense smoke. Onehalf that spacing between the beam and the sidewall may be used as a guide. In addition, it sum marizes the operating principles of singleended reflected beam smoke detectors, their design requirements, and their practical applications as a component of an automatic fire alarm system. By using advanced dual wavelength projected beams and optical imaging technology for early warning smoke detection, osid provides a lowcost, reliable and easytoinstall solution that overcomes typical beam detection issues such as false alarm incidents and. It is to be used with ullisted compatible control panels only.
Spottype smoke detectors on 30 feet or less spacingall spaces with ceiling heights 15 feet or less. The reflected infrared light is detected by the receiver and analyzed. Other spacing may be used depending on ceiling height, airflow characteristics, and response. Question asked by prmnvs on may 17, 2016 latest reply on apr 8. Linear beam smoke detectorsall spaces with ceilings greater than 15 feet. D4007300 1 i562294005r specifications general range. This will show the region in which the emitter units can be located. Smoke detector placement for beams new for 2014 standard if ceiling is level and beam is spacing and detectors can be placed on ceiling or under beams.
Smoke detector spacing on smooth ceilings, 30 to 60 feet between projected beams and not more than onehalf that spacing between a projected beam and a sidewall. Edwards signaling ec50r 100r reflective beam smoke. This allows the reflective prism to be located quickly and with confidence. Location of detectors either on the ceiling or on the bottom. The beam operates primarily on the principle of light obscuration using infrared. This smoke detector circuit warns the consumer against fire accidents.
We can now mount smoke detectors under beams in some conditions. Smoke detector spacing with low height ceiling and beams. Ideal applications are warehouses, atriums, aircraft hangers, sporting arenas and concert halls. When installing the beam smoke detector in applica.
The fireray 5000 system is an autoaligning, selfcorrecting infrared beam smoke detector. Smoke detectors and beam pockets fire alarms certified. Smoke detectors in beam pockets nfpa fire code issues. Model skbeamskbeamt is a long range projected beam smoke detector designed to provide open area protection. Transparencies filters a panel of glass or plastic having a known level of obscuration, which can be used to test the proper sensitivity level of a beam smoke detector. Osidde dual ended smoke beam detector openarea smoke imaging detection osid provides projected beam smoke detection technology.
Smoke detector spacing on level ceilings with beams and. The detector consists of a transmitterreceiver unit and a reflector. Skbeam, skbeamt singleended reflected type projected beam. Figures 3 and 4 show the spacing for both the shed type and peaked type sloped ceilings on smooth ceilings, beam smoke detectors should generally be mounted between 12 and 18 inches from the ceiling. Side to side spacing shall be a maximum of 45 feet.
The main fact to remember is that all points on the ceiling must be within 21 feet of the detector. Longrange beam smoke detectors 3 table of contents en. Smoke detector spacing on level ceilings with beams and joists executive overview nfpa 72, the national fire alarm code, recommends using 900 square feet 30 feet on center as a guideline for spacing spot type smoke detectors on smooth ceilings. Smoke detector spacing on smooth ceilings, 3060 feet between projected beams and not more than onehalf that spacing between a projected beam and a sidewall. General description system sensor model beam1224beam1224s is a long range projected beam smoke detector designed to provide open area protection. View and download honeywell firelite beam355 installation and maintenance instructions manual online.
The fsb200s is a singleended beam smoke detector with integral sensitivity test for use with onyx series panels. View and download bosch ds240 installation instructions manual online. Optical beam smoke detectors en542 normal sensitivity enhanced sensitivity 25. On the other hand, these are the devices that can be the cause of nuisance alarms, so careful selection is mandatory. This area is limited by applicable standards and national codes. Smoke entering the area between the transmitter receiver and reflector causes a reduction in signal. Emitter spacing must comply with local codes and standards b. The alarm sensitivity is the minimum obscuration level at which the detector will initiate an alarm condition. Edwards signaling ec50r 100r reflective beam smoke detector. Reflected beam smoke detectors are designed for spacious rooms, open areas, and high ceilings. Fsb 200a and fsb200sa singleended, reflectortype addressable beam smoke detector jci60189.
Other spacing may be used depending on the ceiling height, airflow characteristics, and response requirements. A heat detectors listed spacing rating is based on detector installation on a flat smooth ceiling that is 10 ft. Beam1224, beam1224s singleended reflected type projected. Epd, ephd, and epdd detectors offer a variety of sensitivity settings. System smoke detectors 4 photoelectric smoke detector operation smoke produced by a fire affects the intensity of a light beam passing through air. The company that revolutionized very early warning smoke detection with vesda has reinvented smoke detection for open spaces with openarea smoke imaging detection osid.
With only one device to install and align, these singleended optical beam solutions saves you time and money on large area applications. To assist in justifying the code change as applicable, the nfpa 72 technical committee needs additional information on the impact of ceiling height and detector spacing on smoke detection performance. Guide to using optical beam smoke detection optical. There will be no occupant notification or fire department response.
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