Models FL3100H/3101H
9
3.0 Installation
WARNING:
Suitably skilled and competent personnel must carry out installation and
maintenance.
3.1 Tools Required
“T” Allen head wrench to remove detector head from detector base (included with flame
detector).
Flat head screwdriver maximum 3/16 in (5 mm) width for terminal block connections.
Adjustable wrench for conduit, or cable gland connections.
3.2 Choosing Product Locations
Several variables are involved in selecting the locations to install detectors to ensure proper
flame detection. There are no hard and fast rules defining the optimum location. Following are
some general suggestions that should be considered in regard to particular conditions at the
site where the unit(s) are being installed:
3.2.1 Detector Field of View
The FL3100H and FL3101H flame detectors have a maximum cone of vision of 120
and 140
maximum respectively. This cone has its vertex at the center of the detector (Figure 8 & Figure
10).
3.2.2 Optical Sensitivity Range
The distance at which the detector will respond to a flame is a function of the intensity of that
flame. The maximum distance is 50ft (15.2m) for a heptane fire with a surface area of 1 sq. ft.
(0.093m
2
).
3.2.3 Environmental
Factors
Mounting should be as free from shock and vibration as possible and convenient for visual
inspection and cleaning.
Detectors mounted in dirty atmospheric conditions will require frequent inspection, cleaning,
and sensitivity checking. Make sure the field-of-view of the detector is not obstructed by the
cover or nearby objects.
Observe the ambient temperature range for the specific model (Section 10.3.4). For outdoor
installations or other areas exposed to intense, direct solar radiation, the detector may reach
temperatures well above specifications. For these installations, a shade or cover may be
required to keep the detector temperature within specifications.
Avoid conditions that would allow ice build-up on the optical detector windows. Complete icing
over of the detector window(s) can result in fault conditions. Mount away from sources of
electrical noise where possible. A constant UV source detected by the unit will cause the
detector to go into FAULT after 9 – 10 minutes of exposure. The source must be removed or
Содержание FL3101H
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Страница 24: ...17 Models FL3100H 3101H Figure 17 FL3100H FL3101H Field Terminations Figure 18 Detector Housing and Base ...
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