User`s guide

Cleaning Information Which Cleaning Procedure should I use ?
102 Agilent 81618A/9A and Agilent 81623B/4B/6B/8B Optical Heads, Fourth Edition
How to clean instruments with a recessed
lens interface
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
2 Clean the interface by rubbing a new, dry cotton swab over the surface
using a small circular movement.
3 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 preferred procedure 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 surface using a
small circular movement.
3 Take a new, dry soft tissue and remove the alcohol, dissolved sediment
and dust, by rubbing gently over the surface using a small circular
movement.
4 Blow away any remaining lint with compressed air.
For instruments with a deeply recessed lens interface (for
example the Agilent 81634A Power Sensors) do NOT follow 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 instrument to the skilled
personnel of Agilent’s service team.
CAUTIONWARNING