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Description
The flame detector comprises the following main components:
1
Mounting bracket
2
Rear enclosure cover
3
Enclosure body
4
Front enclosure cover (including the window)
5
Terminal connections
The flame detector is supplied preassembled and includes the mounting
bracket. However, it is not supplied with a mounting support and fixings, cabling,
or glands.
6
2.2
Feature description
2.2.1
Sensitivity
The sensitivity of the flame detector to a fire is a function of: the fuel source and
how it is released; the fire size and distance; the orientation to the flame
detector; and local ambient conditions. The typical figures are based on in-
house tests except where marked with the Factory Mutual (FM) logo, where the
tests were conducted and certified by FM. As with all tests, the results must be
interpreted according to the individual application considering all possible
variables.The sensitivity of the flame detector to different fuel sources is
dependent on the radiant heat output of the fire. Typical flame detector
response characteristics at high sensitivity (39 meters) are shown in the
following table:
Fuel
Fire size
Methane fire
1 m high (3.28 ft)
20 cm (0.65 ft)
wide plume
Ethanol fire
0.3 m x 0.3 m pan
Diesel fire
0.3 m x 0.3 m pan
Crude oil (heavy fuel oil) fire
0.3 m x 0.3 m pan
Wax inhibitor (Clear 10) fire
0.3 m x 0.3 m pan
Anti-Foam (Surflo AF-300)
0.3 m x 0.3 m pan
agent fire
Wood stack fire
0.3 m x 0.3 m crib
n-Heptane fire
0.3 m x 0.3 m pan
n-Heptane fire in direct sun-
0.3 m x 0.3 m pan
light
n-Heptane fire in modulated
0.3 m x 0.3 m pan
sunlight
Distance
FM
certi-
fied
37 m (121 ft)
yes
30 m (98 ft)
yes
30 m (98 ft)
30 m (98 ft)
30 m (98 ft)
30 m (98 ft)
30 m (98 ft)
39 m (128 ft)
yes
39 m (128 ft)
yes
39 m (128 ft)
yes
Instructions for use
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