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E
Cleaning
Detector
Lens
Interfaces
As
used
on
the
HP
81522A
Optical
Head
(small
area)
and
HP
8140A
and
HP
8153A
detector
modules
.
Normally
,
the
lens
interface
can
be
cleaned
by
using
the
blow
brush.
If
adhesive
dirt
must
be
removed
perform
as
follows:
1.
Using
the
blow
brush,
remove
the
dust
from
the
lens
surface
.
2.
Press
the
special
cleaning
tip
to
the
lens
surface
and
rotate
the
tip
.
Note
Use
alcohol
for
cleaning
only
then
when
above
procedure
does
not
help
or
if
the
dirt
is
caused
by
oil
or
fat.
E-4
Cleaning
Procedures