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WARNING
Keysight 86120D and 86122C Multi-Wavelength Meters User's Guide
Which Cleaning Procedure should I use?
Light d irt
If you just want to clean away light dirt, observe the following procedure
for all devices:
•
Use compressed air to blow away large particles.
•
Clean the device with a dry cotton swab.
•
Use compressed air to blow away any remaining filament left by the
swab.
Heavy d irt
If the above procedure is not enough to clean your instrument, follow one
of the procedures below. Please consult
for the procedure relevant for this instrument.
If you are unsure of how sensitive your device is to cleaning, please contact
the manufacturer or your sales distributor.
How to clean connectors
Cleaning connectors is difficult as the core diameter of a single-mode fiber
is only about 9 mm. This generally means you cannot see streaks or
scratches on the surface. To be certain of the condition of the surface of
your connector and to check it after cleaning, you need a microscope.
In the case of scratches, or of dust that has been burnt onto the surface of
the connector, you may have no option but to polish the connector. This
depends on the degree of dirtiness, or the depth of the scratches. This is a
difficult procedure and should only be performed by skilled personal, and
as a last resort as it wears out your connector.
Never look into the end of an optical cable that is connected to an active
source.
To assess the projection of the emitted light beam you can use an infrared
sensor card. Hold the card approximately 5 cm from the output of the
connector. The invisible emitted light is project onto the card and becomes
visible as a small circular spot.
Cleaning Information
Cleaning Instructions
on page 84
3
91
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