User`s guide

General Cleaning Procedure Cleaning Procedures for Lightwave Test and Measurement Equipment
Agilent 81600B Tunable Laser Source Family, Fourth Edition 259
How to clean lenses and instruments with
an optical glass plate
Some lenses have special coatings that are sensitive to solvents, grease,
liquid and mechanical abrasion. Take extra care when cleaning lenses with
these coatings. Some instruments, for example, Agilent’s optical heads
have an optical glass plate to protect the sensor.
Lens assemblies consisting of several lenses are not normally sealed.
Therefore, use as little alcohol as possible, as it can get between the
lenses and in doing so can change the properties of projection.
If you are cleaning an Agilent series 8162*A optical head, periodically
inspect the optical head’s front window for dust and other particles. Dust
and particles can be propelled through the optical head adapter’s pinhole
while inserting a connector ferrule to the receptacle. Particles on the
optical head’s front window can significantly impair measurement results.
Preferred Procedure
Use the following procedure on most occasions.
1 Clean the lens by rubbing a new, dry cotton swab over the surface
using a small circular movement.
2 Blow away any remaining lint with compressed air.
Procedure for Stubborn Dirt
Use this procedure when there is greasy dirt on the lens.
1 Moisten a new cotton swab with isopropyl alcohol.
2 Clean the lens by rubbing the cotton swab over the surface using a
small circular movement.
3 Using a new, dry cotton swab remove the alcohol, any dissolved
sediment and dust.
4 Blow away any remaining lint with compressed air.
Do not attempt to access the internal parts of an Agilent N3988A
video microscope for cleaning or for any other purpose.
CAUTION
Do not dry the lens by rubbing with cloth or other material, which
may scratch the lens surface.
CAUTION