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Maintenance
If you need further dust caps, please contact your
nearest Keysight Technologies sales office.
Isopropyl alcohol This solvent is usually available from any
local pharmaceutical supplier or chemist's shop.
If you use isopropyl alcohol to clean your optical device, do not
immediately dry the surface with compressed air (except when
you are cleaning very sensitive optical devices). This is because
the dust and the dirt is solved and will leave behind filmy
deposits after the alcohol is evaporated. You should therefore
first remove the alcohol and the dust with a soft tissue, and then
use compressed air to blow away any remaining filaments.
If possible avoid using denatured alcohol containing additives.
Instead, apply alcohol used for medical purposes. Never drink
this alcohol, as it may seriously damage to your health.
Do not use any other solvents, as some may damage plastic
materials and claddings. Acetone, for example, will dissolve the
epoxy used with fiber optic connectors. To avoid damage, only
use isopropyl alcohol.
Cotton swabs We recommend that you use swabs such as Q-tips
or other cotton swabs normally available from local distributors
of medical and hygiene products (for example, a supermarket or
a chemist's shop). You may be able to obtain various sizes of
swab. If this is the case, select the smallest size for your smallest
devices.
Ensure that you use natural cotton swabs. Foam swabs will
often leave behind filmy deposits after cleaning.
Use care when cleaning, and avoid pressing too hard onto your
optical device with the swab. Too much pressure may scratch
the surface, and could cause your device to become misaligned.
It is advisable to rub gently over the surface using only a small
circular movement.
Swabs should be used straight out of the packet, and never used
twice. This is because dust and dirt in the atmosphere, or from a
first cleaning, may collect on your swab and scratch the surface
of your optical device.
Soft tissues These are available from most stores and
distributors of medical and hygiene products such as
supermarkets or chemists' shops.
Keysight N4373D Lightwave Component Analyzer, User's Guide
110
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