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d.
Tighten the trunnion bracket mounting bolt to the required torque (by others) so that
floodlight will no longer rotate.
d.
Tighten the trunnion bracket mounting bolt to the required torque (by others) so that
e.
The azimuth angle can be marked for future reference by marking a line in the cross
floodlight will no longer rotate.
arm along the back and/or front of the trunnion bracket foot (without damaging
e.
The azimuth angle can be marked for future reference by marking a line in the cross
galvanising).
arm along the back and/or front of the trunnion bracket foot (without damaging
3. To set the tilt angle (elevation):
galvanising).
a.
The tilt is adjusted using the front glass as a reference plane. Attach an accurate
3. To set the tilt angle (elevation):
inclinometer to indicate tilt of the glass according the lighting design.
a.
The tilt is adjusted using the front glass as a reference plane. Attach an accurate
irregular edges of the modules. Note, when the glass is horizontal, the built-in protractor
inclinometer to indicate tilt of the glass according the lighting design.
will indicate zero.
irregular edges of the modules. Note, when the glass is horizontal, the built-in protractor
b.
Tighten side bolts (19mm) so that the floodlight will no longer tilt (110 nm).
will indicate zero.
c.
Tighten the safety side screws (5mm Hex - 10 nm).
b.
Tighten side bolts (19mm) so that the floodlight will no longer tilt (110 nm).
d.
The tilt angle can be marked for future reference by writing in the box provided on the
c.
Tighten the safety side screws (5mm Hex - 10 nm).
type label near the side bolt.
d.
The tilt angle can be marked for future reference by writing in the box provided on the
e.
Clip on the plastic bolt covers.
type label near the side bolt.
e.
Clip on the plastic bolt covers.
Note regarding the built-in protractor:
This actually indicates the angle of the glass with respect to the trunnion bracket, and not
Note regarding the built-in protractor:
necessarily the true horizontal. Its reading relies on the levelness of its mounting surface being
This actually indicates the angle of the glass with respect to the trunnion bracket, and not
truly horizontal for the actual tilt of the floodlight to be correctly indicated. It is for this reason
necessarily the true horizontal. Its reading relies on the levelness of its mounting surface being
that it is not recommended that the built-in protractor is used for accurate aiming. It is for
truly horizontal for the actual tilt of the floodlight to be correctly indicated. It is for this reason
approximate aiming only.
that it is not recommended that the built-in protractor is used for accurate aiming. It is for
Note regarding a lighting design with an asymmetric optic:
approximate aiming only.
The lighting design will normally list the tilt angle of the floodlight with respect to the downward
Note regarding a lighting design with an asymmetric optic:
vertical (nadir). Depending on the format of the photometric data used, the design can
The lighting design will normally list the tilt angle of the floodlight with respect to the downward
present the tilt angle is one of two ways:
vertical (nadir). Depending on the format of the photometric data used, the design can
1. The tilt of the glass, where a typical design would have tilts of 0-10 degrees (Fig. 2), or
present the tilt angle is one of two ways:
2. The tilt of the peak intensity (or similar reference direction), where a typical design would
1. The tilt of the glass, where a typical design would have tilts of 0-10 degrees (Fig. 2), or
have tilts of 60-70 degrees (Fig. 3).
2. The tilt of the peak intensity (or similar reference direction), where a typical design would
The latter type is generally preferred as the aiming arrow (vector), and thus the aiming points
have tilts of 60-70 degrees (Fig. 3).
used by the design will correspond to where the peak intensity is directed. Where a reference
The latter type is generally preferred as the aiming arrow (vector), and thus the aiming points
direction angle is used, it is necessary know the difference between this angle and the nadir
used by the design will correspond to where the peak intensity is directed. Where a reference
(B°, see Fig 3). This should be noted in the design schedules, and it can be different for each
direction angle is used, it is necessary know the difference between this angle and the nadir
beam type, e.g. NB/60
(B°, see Fig 3). This should be noted in the design schedules, and it can be different for each
beam type, e.g. NB/60
°
.
°
.
Gerard Lighting Pty Ltd
96 - 112 Gow Street, Padstow, NSW 2211
www.gerardlighting.com.au
Avoid the
Avoid the
Tel: 02 9794 930
Page 9
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