HP 83487A User Manual page 91

To clean an adapter
The fiber-optic input and output connectors on many HP instruments employ
a universal adapter such as those shown in the following picture. These adapt-
ers allow you to connect the instrument to different types of fiber-optic cables.
Figure 5-7. 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 swabs listed in this section's introduction are small enough to fit into
adapters.
Although foam swabs can leave filmy deposits, these deposits are very thin, and
the risk of other contamination buildup on the inside of adapters greatly out-
weighs the risk of contamination by foam swabs.
2 Clean the adapter with the foam swab.
3 Dry the inside of the adapter with a clean, dry, foam swab.
4 Blow through the adapter using filtered, dry, compressed air.
Nitrogen gas or compressed dust remover can also be used. 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.
Cleaning Connections for Accurate Measurements
Reference
5-23