Technical data

Which Cleaning Procedure should I use ? 5
Cleaning Procedures 39
Procedure H
How to clean instruments with a recessed lens
interface
For instruments with a deeply recessed lens
interface (for example the Agilent Technologies
81633A and 81634A Power Sensors) do NOT fol-
low this procedure. Alcohol and compressed air
could damage your lens even further.
Keep your dust and shutter caps on when your
instrument is not in use. This should prevent it
from getting too dirty.
If you must clean such instruments, please refer the instru-
ment to the skilled personnel of the Agilent service team.
Preferred Procedure
Use the following procedure on most occasions.
1 Blow away any dust or dirt with compressed air. If this is not
sufficient, then:
a Clean the interface by rubbing a new, dry cotton swab
over the surface using a small circular movement.
b Blow away any remaining lint with compressed air.
Procedure for Stubborn Dirt
Use this procedure when there is greasy dirt on the interface,
and using the procedure for light dirt is not sufficient.
Using isopropyl alcohol should be your last choice for recessed
lens interfaces because of the difficulty of cleaning out any dirt
that is washed to the edge of the interface.
1 Moisten a new cotton swab with isopropyl alcohol.
2 Clean the interface by rubbing the cotton swab over the sur-
face using a small circular movement.
3 Take a new, dry soft tissue and remove the alcohol, dis-
solved sediment and dust, by rubbing gently over the sur-
face using a small circular movement.
4 Blow away any remaining lint with compressed air.
cleaning.book Page 39 Wednesday, May 22, 2002 5:16 PM