BOREAL LASER GasFinder FC, Operation Manual

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7.7
Boreal Laser Inc. GasFinderFCr Operation Manual — Troubleshooting July 17th 2017
Rather than use a motorised mount to adjust the alignment of the
remote head, the preferred to solution is to use a dispersed array of
retro refl ectors.
In the preceding example, the fi nal retro array will be similar to the shape
shown in fi gure 3.
The number of refl ectors may have to be increased from the
number used in the single enclosure, and their spacing will also have
to be changed. Contact Boreal Laser for more specifi c details.
Centering the Cross Hairs with the Centre of the Laser Beam
1. At 400m, the diameter of the beam is
about 600mm, so the area of the beam may
be larger than the enclosure. To fi nd the
edges of the beam, the remote head has to
be traversed horizontally and vertically until
the light level drops. Note where the cross
hairs are in the scope relative to the refl ector
at these positions, (see fi gure 4) and position
the head, so that the cross hairs are in the
centre of the travel. In the example shown,
the cross hairs would be at the top right
corner of the refl ector when the beam is
centred on the retro.
2. Looking through the telescope, and
without adjusting the alignment of the remote
head, adjust the crosshairs to the centre of
the refl ector.
This is done by removing the two cover caps
in the centre of the scope body and turning
the screws underneath so that the cross hairs
are centred on the middle of the refl ector. The
vertical cross hair is adjusted by the screw
on the top, and the horizontal cross hair is
adjusted by the screw on right.
Figure 3
Cross hair adjustment
screw covers
Horizontal Vertical
13:00
20:00
07:00
02:00
Figure 4
Vertical top edge
Vertical bottom edge
Horizontal left edge
Horizontal right edge
Centre of
‘scope travel
Beam coverage