How does a photoelectric smoke detector work? - PowerPoint PPT Presentation

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How does a photoelectric smoke detector work?

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How does a photoelectric smoke detector work?
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How does a photoelectric smoke detector work?

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  1. FRONT VIEW OF PHOTOELECTRIC SMOKE DETECTOR How does a photoelectric smoke detector work? LED STATUS INDICATOR LIGHT. Blinks RED when Normal Stay solid RED when in alarm.

  2. BACK VIEW OF PHOTOELECTRIC SMOKE DETECTOR COMMON TERMINAL TRANSMITTER TERMINAL COLLECTOR TERMINAL

  3. INSIDE VIEW OF PHOTOELECTRIC SMOKE DETECTOR COLLECTOR TRANSMITTER: Emits a Infrared (IR) beam

  4. INSIDE VIEW OF PHOTOELECTRIC SMOKE DETECTOR COLLECTOR NOTICE: When no smoke is present the IR beam does not hit the collector Infrared (IR) beam

  5. Once the IR beam hits the smoke the beam disperses. When the IR beam is displaced enough it will be picked up by the collector. This will cause the smoke detector to go into alarm. COLLECTOR