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Accessories
Marathon
Series
FA/FR
35
8.2
Air
Purge
Collar
The
Air
Purge
Collar
accessory
is
used
to
keep
dust,
moisture,
airborne
particles,
and
vapors
away
from
the
optical
head
ʹ
s
lens.
It
can
be
installed
before
or
after
the
bracket.
It
must
be
screwed
in
fully.
Air
flows
into
the
1/8”
NPT
fitting
and
out
the
front
aperture.
Air
flow
should
be
a
maximum
of
0.5
‐
1.5
liters/sec
(1
‐
3
cfm).
Clean
(filtered)
or
“instrument”
air
is
recommended
to
avoid
contaminants
from
settling
on
the
lens.
Do
not
use
chilled
air
below
10°C
(50°F).
Also
provided
is
a
stainless
steel
protection
tube,
150
mm
(6
inches)
long
by
25
mm
(1
inch)
diameter
that
threads
onto
the
front
of
the
air
purge
collar.
Figure
31:
Air
Purge
Collar
and
Protection
Tube
(XXXFOHAPA)
8.3
Protection
Tube
The
protection
tube
is
available
as
an
accessory.
It
is
305
mm
(12
in.)
long
and
32
mm
(1.26
in.)
in
diameter
and
comes
with
¾”
NPT
external
thread
at
one
end.
The
optical
head
is
threaded
with
the
protection
tube.
The
use
of
the
air
purge
collar
in
the
same
time
is
possible.
Figure
32:
Protection
Tube
for
Optical
Head
Содержание MARATHON FA
Страница 2: ......
Страница 8: ......
Страница 16: ...Technical Data 8 Marathon Series FA FR Figure 5 Adjustable Mounting Bracket for Optical Head ...
Страница 61: ...Maintenance Marathon Series FA FR 53 Figure 40 Dialog for the Calibration of the Fiber Cable ...