3-4 85036B/E
Use, Maintenance, and Care of the Devices
Cleani ng Connect or s

Inspect the Precision Slotless Connectors (female)

Preci sion slotle ss female connectors are used to improv e accuracy. The slotl ess contacts are
not affected by the slight variations in male contact pin diameter. However, it is still
advis able to inspect them regularly for damage.
NOTE Inspection is particularly important when mating nonprecision to precision
devices.

Cleaning Connectors

Clean connectors are essential for ensuring the integrity of RF and microwave coaxial
connections.
1. Use Compressed Air or Nitrogen
WARNING Always use protective eyewear when using compressed air or
nitrogen.
Use compressed air (or nitrogen) to loosen particles on the connector mating plane
surfaces.
You can use any source of clean, dry, low-pressure compressed air or nitrogen that has
an effective oil-vapor filter and liquid condensation trap placed just before the outlet
hose.
Ground the hose nozzle to prevent electrostatic discharge, and set the air pressure to
less than 4 14 kP a (60 p si) to con trol th e velocity of the air stream. High- velocity streams
of compressed air can cause electrostatic effects when directed into a connector. These
electrosta tic effects can damage the dev ice. Refer to “Electr osta tic Discha r ge” earlier in
this chapter for additional information.
2. Clean the Connector Thr e ads
WARNING Keep isopropyl alcohol away from heat, sparks, and flame. Store in a
tightl y closed container. It is e xtremely fl ammable. I n case of f ire, use
alcohol foam, dry chemical, or carbon dioxide; water may be
ineffective.
Use isopropyl alcohol with adequate ve ntilation and avoid contact
with eyes, skin, and clothing. It causes skin irritation , may cause eye
damage, and is harmful if swallowed or inhaled. It may be harmful if
absorbed throu gh the skin. Wash thoroughly after handling.
In case of spill, soak up with sand or earth. Flush spill area with
water.
Dispose of isopropyl alcohol in accordance with all applicable
federal, state, and local environmental regulations.