Fireray 50RU Reflective Beam Smoke Detector

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The Fireray 50/100RU system is a reflective beam smoke detector, which comprises of a single unit incorporating an infra-red transmitter and receiver. The signal generated in the transmitter element and reflected by the prism back to the receiver element is analyzed for the presence of smoke. The internal microprocessor determines an alarm condition when a predetermined level is reached.

The product is designed to be mounted so the beam will project between 19" (0.5 m) and 24" (0.6m) below and parallel to the ceiling. Lateral detection may be up to 30ft. (9.144m) on either side of the beam, providing a maximum total coverage area of up to 19,800 square feet (60ft. x 330ft. or 18.29m x 100m). For installations complying with UL268/NFPA72, the maximum distance of Detector and Reflector from the ceiling must be 10% of the distance between floor and ceiling.

  • 2 Models based on coverage:
    • 50RU - 16.5 ft to 160 ft (5m to 50m)
    • 100RU - 160 ft to 330 ft (50m to 100m)
  • Easy setup and alignment
  • Calibrated obscuration test filter included
  • 3 selectable alarm thresholds: 25%, 35% or 50%
  • 12VDC or 24VDC operation
  • Separate alarm and trouble contacts