Keysight 11923A, Руководство по эксплуатации и обслуживанию

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Making Connections 4
Keysight 11923A Operating and Service Manual 31
Connector Alignment
Good connections require a skilled operator. Instrument sensitivity and coaxial connector
mechanical tolerances are such that slight errors in operator technique can have a significant
effect on measurements and measurement uncertainties.
Follow these recommendations for optimum connection technique:
1 Clean and inspect (visually and mechanically) all of your connectors.
2 Carefully align the connectors. Look for flat physical contact at all points on the mating plane
surfaces.
3 Make a gentle, preliminary connection.
4 When making a connection, turn only the connector nut. Do not rotate a device when you make
a connection, and do not apply a lateral or horizontal (bending) force.
5 Use an open-end wrench to keep the device from rotating when you make a final connection
with the torque wrench.
Figure 4-5 Alignment
NOTE
The most common cause of measurement error is poor connections.
NOTE
If one of the 1.0-mm connectors is free to move, self-alignment is possible during connection.
Self-alignment occurs because outer conductors engage before the center conductors (refer to
Figure 4-5 and Figure 4-6 ).