Keysight Technologies 86120B, User Manual

Page: 34 / 273

32
Getting Started
Cleaning Connections for Accurate Measurements
Cotton swabs can be used as long as no cotton fibers remain on the fiber end after
cleaning.
2 Clean the ferrules and other parts of the connector while avoiding the end of the fiber.
3 Apply isopropyl alcohol to a new clean lint-free cotton swab or lens paper.
4 Clean the fiber end with the swab or lens paper.
Do not scrub during this initial cleaning because grit can be caught in the swab and
become a gouging element.
5 Immediately dry the fiber end with a clean, dry, lint-free cotton swab or lens paper.
6 Blow across the connector end face from a distance of 6 to 8 inches using filtered,
dry, compressed air. Aim the compressed air at a shallow angle to the fiber end face.
Nitrogen gas or compressed dust remover can also be used.
C A U T I O N
Do not shake, tip, or invert compressed air canisters, because this releases
particles in the can into the air. Refer to instructions provided on the
compressed air canister.
7 As soon as the connector is dry, connect or cover it for later use.
If the performance, after the initial cleaning, seems poor try cleaning the connector
again. Often a second cleaning will restore proper performance. The second clean-
ing should be more arduous with a scrubbing action.
To clean an adapter
The fiber-optic input and output connectors on many Keysight Technologies instru-
ments employ a universal adapter such as those shown in the following picture.
These adapters allow you to connect the instrument to different types of fiber-optic
cables.
Figure 1-7. Universal adapters.
1 Apply isopropyl alcohol to a clean foam swab.
Cotton swabs can be used as long as no cotton fibers remain after cleaning. The foam