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Agilent N4373A Lightwave Component Analyzer, First Edition
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
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.
How to clean optical devices which are sensitive to mechanical
stress and pressure
Some optical devices, such as Reference Reflectors, are very
sensitive to mechanical stress or pressure. Do not use cotton
swabs, soft tissues or other mechanical cleaning tools, as
these can scratch or destroy the surface.
Preferred procedure Use the following procedure on most
occasions.
1 Blow away any dust or dirt with compressed air.
Procedure for stubborn dirt To clean devices that are
extremely sensitive to mechanical stress or pressure you can
also use an optical clean polymer film. This procedure is
time- consuming, but you avoid scratching or destroying the
surface.
1 Put the film on the surface and wait at least 30 minutes
to make sure that the film has had enough time to dry.
2 Remove the film and any dirt with special adhesive tapes.
Troubleshooting and Maintenance
91
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