Accessories
8.8
Protective
Window
The
protective
window
can
be
used
to
protect
the
sensing
head
from
dust
and
other
contamination.
This
should
be
applied
especially
for
sensors
without
a
lens.
These
are
all
models
with
an
optical
resolution
of
2:1.
The
protective
window
is
made
from
non
‐
poisonous
zinc
sulfide,
with
a
transmission
factor
of
0.75
±
0.05.
It
has
an
outer
diameter
of
17
mm
(0.67
in).
The
protective
window
can
be
directly
screwed
to
the
sensing
head.
It
withstands
ambient
temperatures
up
to
180°C
(356°F).
For
correct
temperature
readings,
the
transmission
of
the
protective
window
must
be
set
via
the
control
panel
in
the
sensor’s
electronic
housing,
see
section
6.2
Setting
of
Modes
on
page
35!
Figure
44:
Protective
Window
(XXXMIACPW)
MID
59
