The Fire-Lite BEAM355 and BEAM355S ar e intelligent, addressable reflected beam smoke detectors. It Protects open areas with high and sloping ceilings and wide-open areas. Wh ere 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. They ar e compatible with the MS-9600 Series and MS9200 Series in LiteSpeed® or CLIP mode. Installation of the single-ended reflective design i s much quicker th an a dual-ended projected beam detector. Alignment i s 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 ar e usable in open-area applications. W here 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. Wh en smoke enters the area b etween the unit and the reflector. It causes a reduction in the signal strength. Wh en the smoke level (signal strength) reaches the predetermined threshold, an alarm i s activated. The detectors have four standard sensitivity selections and two Acclimate® settings. Wh en Acclimate® setting i s selected. The detector’s advanced software algorithms automatical ly 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