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Cleaning Information Additional Cleaning Information
190 Agilent 81480A and 81680A, 40A, 82A, 42A, & 89A Tunable Laser Modules User’s Guide,
Sixth Edition
Only use water if you are sure that there is no other way of cleaning
your optical device without causing corrosion or damage. Do not use
hot water, as this may cause mechanical stress, which can damage
your optical device.
Ensure that your liquid soap has no abrasive properties or perfume in
it. You should also avoid normal washing up liquid, as it can cover
your device in an iridescent film after it has been air dried.
Some lenses and mirrors also have a special coating, which may be
sensitive to mechanical stress, or to fat and liquids. For this reason we
recommend you do not touch them.
If you are not sure how sensitive your device is to cleaning, please
contact the manufacturer or your sales distributor.
1 Moisten the lens or the mirror with water.
2 Put a little liquid soap on the surface and gently spread the liquid
over the whole area.
3 Wash off the emulsion with water, being careful to remove it all, as
any remaining streaks can impair measurement accuracy.
4 Take a new, dry soft tissue and remove the water, by rubbing gently
over the surface using a small circular movement.
5 Blow away remaining lint with compressed air.
Alternative Procedure A To clean lenses 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.
Alternative Procedure B If your lens is sensitive to water then:
1 Moisten the lens or the mirror with isopropyl alcohol.
2 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.
3 Blow away remaining lint with compressed air.