Hochiki DRD-E Bedienungsanleitung PDF herunterladen (Seite 6)

Page 6 of 12 DRD-E Flame Detector Installation Manual

2-3-0-1376/ISS1/NOV10

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

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Hochiki DRD-E Bedienungsanleitung Seite 6