Hochiki DRD-E - Manual (Page 6)

Page 6 of 12 DRD-E Flame Detector Installation Manual
2-3-0-1376/ISS1/NOV10
© 2010 Hochiki Europe (UK) Ltd
2 Application
Flame detectors are used when detection is required to be:
 Unaffected by convection currents, draughts or wind
 Tolerant of fumes, vapours, dust and mist
 Fast reacting
2.1 Detectable Fire Sources
 Liquids - Aviation Fuels (kerosene), Ethanol, Methylated Spirits, n-Heptane, Paraffin, Petrol (gasoline)
 Solids – Coal, Cotton, Grain & Feeds, Paper, Refuse Wood
 Gases – Butane, Natural Gas, Off Gas, Propane
2.2 Typical Applications
 Coal handling plant
 Aircraft hangars
 Atria
 Automotive industry - spray booths, parts manufacture
 Paper manufacture
 Pharmaceutical
 Engine rooms
 Generator rooms
 Metal fabrication
 Waste handling
 Woodworking
 Power plants
 Textiles
 Transformer stations
 Petrochemical
2.3 Applications and Locations to Avoid:
 Ambient temperatures above 50°C
 Dusty or steamy atmospheres
 Atmospheres containing corrosive gases
 Where condensation exists
 In the vicinity of large IR sources – such as heaters, burners, flares
 Close proximity to RF sources
 Obstructions to field of view
 Exposure to weather
 Large amounts of flickering reflections
 Direct sunlight or its reflected light by puddle, glass, or mirror surface of metal
 Spot lighting directly on the detector optics