OSID Emitters & Imagers

In its simplest configuration, OSID (Open-area Smoke Imaging Detection) uses one imager, a camera-like device with a wide field of view, and a wired or battery-powered emitter roughly aligned on the opposite wall within the protected area. The emitter sends both infrared and ultraviolet coded light signals to the imager. If the light reception is altered due to the presence of genuine smoke particles, the imager will go into alarm. The novel use of dual light frequencies in an open-path device enables OSID to discriminate between real smoke and other objects, including insects, steam, condensation and dust, thus drastically reducing false alarms.

• Maximum detection range of 150 m (492 ft) for the OSI-10

• Status LEDs for Fire, Trouble and Power

• High false alarm immunity

• Dust and intrusive solid object rejection

• Easy alignment with large adjustment and viewing angles

• No need for precise alignment

• Tolerant of alignment drift

• Automatic commisioning in under ten minutes

• Simple DIP switch configuration

• Dual wavelength LED-based smoke detection

• Simple and easy maintenance requirements

• Conventional alarm interface for straightforward fire system integration

• Three selectable alarm thresholds