Ampac FIRERAY 2000 - Optical Beam Smoke Detector Types; Projected; Reflected

FIRERAY PRODUCT GUIDE
Page 4
2.3 Optical Beam Smoke Detector Types
There are currently two types of Optical Beam Smoke Detectors. The Projected style and the
Reflective style.
2.3.1 Projected
The Transmitter and the Receiver are installed at each end of the area to be protected, up to 100
metres apart. The Receiver is electrically connected to the Control Unit, the later being installed at
the ground level
2.3.2 Reflected
The Transmitter and the Receiver are contained within one unit: The Transceiver. The transmitted
infrared light beam is reflected back by a reflector (prism) mounted directly opposite this unit, up to
100 metres away. The Receiver is connected to a Control Unit that can be either integrated into the
Transceiver or installed at ground level