BOREAL LASER GasFinder FC, Operation Manual

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3.2
Boreal Laser Inc. GasFinderFCr Operation Manual — Installation July 17th 2017
Refl ector types Path Length
Up to 76
63mm Retros 600–750m
Description
Grey Tape comes in sheets 200 x 300mm. It is
adhesive backed and can easily be attached to any
smooth, dry surface. It is often stuck to the back of a
retro enclosure.
Grey Tape 5–40m
The tape comes in 16m rolls x 50mm wide. The tape is
divided into red and silver bands and each have different
refl ective properties. The tape is adhesive backed and can
easily be attached to any smooth, dry surface. It is often
stuck to the back or side of a retro enclosure. Red/White
Tape 1–5m
These are multi-faceted IMOS 46mm hexagons. They
can be fi tted together to make up a large composite
array. IMOS plastic
46mm Retro 30–100m
The IMOS array shown is made from 14 single
hexagonal retros. They are normaly mounted on
a back plate which is placed in a stainless steel or
FRP enclosure. IMOS array 50 -- 300m
76 retros are probably the maximum number
that can be economically used as the cost
becomes prohibitive as the number of retros
increases. At path lengths approaching 750m,
maintaining the correct alignment becomes
diffi cult.
These retros are enclosed in a PVC, RPF or
stainless steel enclosure. The number of retros
will depend on the type of gas being measured,
the path length and atmospheric conditions. The
window is normally Lexan but can be changed to
a special glass when measuring some gases. For
outside use rain hoods and heated enclosures are
recommended to prevent condensation.
Up to 6
63mm Retros 75m – 400m
This is a gold plated hexagonal retro. It is normally
housed in a plastic or steel box with a Lexan
window. They can also be fi tted together to
make up a large composite array. 63mm Retro 75 – 150m
The enclosures will vary in size depending on the number of retros and if internal heating is
required. Window materials will depend on the site conditions and the gas to be measured.
Lexan is normally supplied but window glass, boro-silicate and sapphire are used under
specifi c circumstances. Contact Boreal Laser Inc. for more information.