Ampac FIRERAY 100R, Product Manual

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FIRERAY PRODUCT GUIDE
Page 5
2.3.3 Application of Projected and Reflected Optical Beam Smoke Detectors
The Type of Optical Beam Smoke Detector used will be dictated by the installation and the
environment conditions and constraints.
Projected Optical Beam Smoke Detectors are less susceptible to stray reflection as reflections go
back to the transmitter. As a result, projected Optical Beam Smoke Detectors can operate within
narrower gaps left in the operating environment.
In addition, Projected Optical Beam Smoke Detector Transmitter and Receiver units are generally
compact and easily adopted into “aesthetic” architectural designs.
Reflected Optical Beam Smoke Detectors utilises less wiring for reduced costs (power and wiring
are only required at the transceiver end) and only requires the Transceiver to be aligned. However
the Reflected Optical Beam Smoke Detector can be vulnerable to reflective items close to IR beam
path.
As the Reflector has a wide acceptance angle, it does not need to be aligned as accurately as both
ends of a Projected Optical Beam Smoke Detectors
2.3.4 New Optical Beam Smoke Detector Technology
The latest Optical Beam Smoke Detectors generation can also encompass a motor.
In conjunction with a Control Unit installed at ground level, the user can benefit from being able to
steer the motorised units without the need to perform most of the setting up, commissioning and
maintaining activities from heights.
With a motorised Optical Beam Smoke Detector, it is possible to include software algorithms that
automatically align the unit and can accommodate building movements