Fire-Lite BEAM355S Beam Detector

The Fire-Lite BEAM355 and BEAM355S are intelligent, addressable reflected beam smoke detectors for protecting open areas with high and sloping ceilings, and wide-open areas, where spot-type smoke detectors are difficult to install and maintain. Ideal applications are atriums, cathedral ceilings, aircraft hangars, warehouses, sporting arenas, concert halls, and enclosed parking facilities. Also, they are compatible with the MS-9600 Series and MS9200 Series in LiteSpeed® or CLIP mode. Installation of the single-ended reflective design is much quicker than a dual-ended projected beam detector. Alignment is easily accomplished with an optical sight and a two-digit signal strength meter incorporated into the beam detector. Listed for operation from –22°F to 131°F, the BEAM355 and BEAM355S are usable in open area applications where temperature extremes exceed the design limits of other types of smoke detection.

The Fire-Lite BEAM355 and BEAM355S are transmitter/receiver units and a reflector. When smoke enters the area between the unit and the reflector it causes a reduction in the signal strength. When the smoke level (signal strength) reaches the predetermined threshold, an alarm is activate. The detectors have four standard sensitivity selections as well as two Acclimate® settings. When either Acclimate® setting is selected, the detector’s advanced software algorithms automatically adjust to the optimum sensitivity for the specific environment.

Features / Specifications

• Transmitter/receiver built into the same unit
• Six user-selectable sensitivity levels
• Removable plug-in terminal blocks
• Digital display — no special tools required
• Built-in automatic gain control compensates for signal deterioration from dust buildup
• Optional remote test station