What Causes Connector Wear; Connector Contacts; Concentricity - Keysight Technologies 85059B Operating And Service Manual

Use, Maintenance, and Care of the Devices
Visual Inspection

What Causes Connector Wear?

Connector wear is caused by connecting and disconnecting the devices. The
more use a connector gets, the faster it wears and degrades. The wear is
greatly accelerated when connectors are not kept clean, or are connected
incorrectly.
Connector wear eventually degrades performance of the device. Calibration
devices should have a long life if their use is on the order of a few times per
week. Replace devices with worn connectors.
The test port connectors on the network analyzer test set may have many
connections each day, and are therefore more subject to wear. It is
recommended that an adapter be used as a test port saver to minimize the
wear on the test set's test port connectors.

Connector Contacts

See
integrity of a connector.
Notice the location of the cross hairs in relationship to the center of the
figures.
Figure 3-2 Contact Integrity

Concentricity

Figure 3-3
1.0 mm connectors. Inspect the connectors with a minimum magnification of
10X.
Keysight 85059B Operation and Service Guide
Figure 3-2 on page 3-5
and Figure 3-4
for visual guidelines when evaluating the contact
show the concentricity of both the male and female
3-5