Dräger Flame 5000, Техническое руководство

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Intended Use
7
WARNING
Do not open the enclosure in the presence of an explosive
atmostphere.
!
WARNING
All permits and proper site procedure and practises must be
followed and the equipment must be isolated from the power
supply before opening the enclosure in the field.
!
Field of View
The sensor can detect fi res of 0.1m
2
or greater, at 44m within a 90° horizontal fi eld of view. The detector will only
respond to visible fl ames within the fi eld of view. Hence the detector will not to certain common sources of false alarms
such as re fl ected fl are radiation. This also reduces the likelihood of cross-propagation of alarms caused by fi res or
combustion products of fi res burning out with the fi eld of view.
The detectors should be aligned to view the intended hazard taking into account any obstruction and congestion.
Software analysis of the actual detector coverage may be required to ensure adequate coverage of the hazards. This
analysis can also be used to optimise the number of detectors and the loop con
fi guration.
Visual Flame Detector does not have a traditional cone of vision like other IR fl ame detector’s. The detector’s fi eld of
view is a rectangular pyramidal shape and represents a radial projection of the detector’s rectangular sensing element.
The illustrations below show the Field of View and range for a
fi re of 0.1m
2
.
50m
30m
40m
20m
10m
5m
0 ˚
15 ˚
30 ˚
45 ˚
-15 ˚
-30 ˚
-45 ˚
60 ˚ -60 ˚
-75 ˚
-90 ˚
-105 ˚
-120 ˚
-135 ˚
-150 ˚
-165 ˚
180 ˚
165 ˚
150 ˚
135 ˚
120 ˚
105 ˚
90 ˚
75 ˚
50m
30m
40m
20m
10m
5m
0 ˚
15 ˚
30 ˚
45 ˚
-15 ˚
-30 ˚
-45 ˚
60 ˚
-60 ˚
-75 ˚
-90 ˚
-105 ˚
-120 ˚
-135 ˚
-150 ˚
-165 ˚
180 ˚
165 ˚
150 ˚
135 ˚
120 ˚
105 ˚
90 ˚
75 ˚
Horizontal Field of View Vertical Field of View