Keysight Technologies 85054B, User'S And Service Manual

Page: 24 / 65

3- 4 85054B
Use, Maintenance, and Care of the Devices
Cleaning Connectors
Inspect the Precision Slotless Connectors (female)
Precision slotless female connectors are used to improve accuracy. The slotless contacts are
not affected by the slight variations in male contact pin diameter. However, it is still advisable to
inspect them regularly for damage.
NOTE This 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 414 kPa (60 psi) to control the velocity of the air stream. High-velocity streams of
compressed air can cause electrostatic effects when directed into a connector. These
electrostatic effects can damage the device. Refer to “Electrostatic Discharge” earlier in this
chapter for additional information.
2.
Clean the Connector Threads
WARNING Keep isopropyl alcohol away from heat, sparks, and flame. Store in a tightly
closed container. It is extremely flammable. In case of fire, use alcohol
foam, dry chemical, or carbon dioxide; water may be ineffective.
Use isopropyl alcohol with adequate ventilation 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
through 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.
Use a lint-free swab or cleaning cloth moistened with isopropyl alcohol to remove any dirt or
stubborn contaminants on a connector that cannot be removed with compressed air or
nitrogen. Refer to Table 6-2 on page 6-3 for a part number for cleaning swabs.
a. Apply a small amount of isopropyl alcohol to a lint-free cleaning swab.