BEAM355 and BEAM355S Reflected-Type Beam Smoke Detectors FireLite BEAM355 and BEAM355S are reflected beam smoke detectors for protecting areas with high and sloping ceilings, and wide-open where spot-type smoke detectors are difficult to install maintain. applications are atriums, cathedral aircraft hangars, warehouses, sporting arenas, halls, and enclosed parking facilities. They are with the MS-9600 Series and MS9200 Series in or CLIP mode. Installation of the single-ended design is much quicker than a dual-ended projected detector. Alignment is easily accomplished with an sight and a two-digit signal strength meter incorporated the beam detector. Listed for operation from to the BEAM355 and BEAM355S are usable in open area where temperature extremes exceed the design of other types of smoke detection. BEAM355 and BEAM355S are a transmitter/receiver unit a reflector. When smoke enters the area between the unit the reflector it causes a reduction in the signal strength. threshold, an alarm is activated. The detectors four standard sensitivity selections as well as two settings. When either Acclimate setting is detector advanced software algorithms adjust to the optimum sensitivity for the specific BEAM355S has an integral sensitivity test feature of a attached to a servomotor inside the detector optics. of the RTS151 or RTS151KEY remote test stations the filter into the pathway of the light beam, testing the sensitivity. This sensitivity test feature allows the to quickly and easily meet the annual maintenance and requirements of NFPA 72, without physical access to the The servomotor must be powered by +24 VDC, not power. strength) smoke Listed to UL 268, ULC CAN/ULC S529. Transmitter/receiver built into same unit. Six user-selectable sensitivity levels. 16 to 328 (use BEAMLRK beyond 230 protection range. Removable plug-in terminal blocks. Digital display no special tools required. Built-in automatic gain control compensates for signal dete- from dust buildup. Optional remote test station. Optional long-range kit (BEAMLRK) for applications in of 230 (70 m). Optional multi-mount kit (BEAMMMK) providing ceiling or mount capability with increased angular adjustment. Optional heater kits (BEAMHK and BEAMHKR) of condensation (not intended to increase or the specified operating temperature). Paintable cover. E-270 Devices Plate SPECIFICATIONS Range: 16 to 230 feet (5 to 70 m), 230 to 328 feet to 100 m) using optional BEAMLRK kit. Angle: horizontal and vertical. Note that optics move independently of the unit. (6 levels): Sensitivity settings are a feature of specific control panels. Level 1 25%. Level 2 30%. Level 3 40%. Level 4 50%. Acclimate Level 5 30% to 50%. Acclimate Level 6 40% to 50%. Condition (trouble): 96% or more obscuration blockage. Self-compensation limit reached. Aid: Optical gunsight. Two-digit display. Alarm local red LED and remote alarm. Trouble local yellow LED and remote trouble. Normal local flashing green LED. alignment mode. initial alignment. signal strength indication. 11/16/09 Page 1 of 4 features: sensitivity test filter (BEAM355S only, requires power supply). Sensitivity filter (incremental scale on reflector). Local alarm test switch. Local alarm reset switch.