Fireray 100R Reflective Beam Smoke Detector, 50-100m (EN=0206.10)

Fire Fighting Enterprises

This product has been superseded by another model

Fireray 100R Reflective Beam Smoke Detector

The Fireray 100R reflective infrared optical beam smoke detectors are comprised of a single unit incorporating an infrared Transmitter and Receiver. The signal is reflected by a prism and analysed for smoke presence. The system is designed to be mounted so that the beam will project between 0.3 and 0.6 metres below and parallel to the ceiling. Lateral detection may be up to 7.5 metres either side of the beam.

Key Features

  • Single Compact Housing
  • Area coverage 50 metre or 100 metre model available
  • 12-24 Vdc Operation
  • Low current Consumption
  • Robust Construction
  • Conforms to: BS5839 Part 5 and EN54 part 12, UL and VdS


The Fireray 50R/100R series of reflective infrared optical beam smoke detectors provide economical and effective protection of large, open plan spaces with high ceilings, particularly if access to ‘point type’ smoke detectors presents practical difficulties.


The 50R/100R has three selectable 'Alarm Thresholds' settings of 25%, 35% and 50% which can be selected to suit the environment. If the received infrared signal reduces to below the selected threshold for approximately 10 seconds, the fire relay is activated.There are two modes of operation for the fire relay. 'Auto Reset Mode' will reset the fire relay approximately 5 seconds after the received infrared signal has recovered to a level above the alarm threshold. 'Latching Mode' holds the fire relay active indefinitely after an alarm condition has occurred.

If the infrared beam is obscured rapidly to a level of 90% or greater for 10 seconds the fault relay is activated.This condition can be achieved in a number of ways, for example, an object being placed in the beam path, transmitter failure, loss of the prism, or sudden misalignment of the detector.The fault relay will reset within 5 seconds of the condition being rectified.

The 50R/100R optical beam smoke detectors monitor long term degradation of beam signal strength caused by the build up of dirt on its optical surfaces; this operates by comparing the received infrared signal against a reference voltage every 15 minutes.

Technical Specication

  • Operating Range : 50 to 100 Metres
  • Operating Voltage Range : 10.2V DC to 30Vdc
  • Quiescent Current :
  • Alarm Current : <15mA
  • Power Down Reset Time : 5 seconds
  • Fire Relay Contacts : Normally Open,VFCO 2A @ 30Volts DC, resistive
  • Fault Relay Contacts : Normally Closed,VFCO 2A @ 30Volts DC, resistive
  • Operating Temperature : -20°C to +55°C (non-condensing)
  • Fire Alarm Thresholds : 1.25dB (25%), 1.87dB (35%), 3.00dB (50%)
  • Optical Wavelength : 880nm
  • Detector Dimensions : Width 126mm, Height 210mm, Depth 120mm
  • Prism Dimensions : Width 100mm, Height 100mm, Depth 9.5mm
  • Weight : 0.67 kg
  • LED Indications :
    • Red LED : Indicates FIRE
    • Continuous Amber LED : Indicates FAULT
    • Flashing Amber LED : Once every 10 seconds indicates normal operating mode (RV Models only)
    • Flashing Amber LED : Once every 2 seconds indicates the compensation function has reached its limit
  • Conditions :
    • Alarm Condition: Indicated by fire relay closing
    • Fault Condition: Indicated by fault relay opening
    • Alarm may be latching or non-latching (default)
  • IP Rating : IP50
  • Relative Humidity : RH 0% to 93%, (non-condensing)
  • Approvals/Certification : Designed, manufactured and certified to EN54-12: 2002, Use 25% and 35% (default) thresholds. The 50% threshold is recommended for hostile and extreme environments
  • CPD Reference : 0786-CPD-20045
  • UL File : S3417
  • Parts List : 1 x Detector Head Assembly, 4 x prisms, 1 x Test Filter, 1 x Cable Interface
  • Housing Construction :Flame Retardant ABS, Finish: Grey / Black


Same Day Dispatch
Lowest Price Guaranteed
Free UK Delivery over £150*
Secure Online Order Processing
Free Technical Support

Newsletter Signup

Enter your details and we'll occasionally send you special offers and product news.