3-4 Keysight N9912A Service Guide
Tests and Adjustments
Before You Begin
3-
— Look for metal particles, scratches, and
dents
Connector Cleaning
Do — Try compressed air first Do Not — Use any abrasives
— Use isopropyl alcohol
a
• Get liquid into plastic support beads
— Clean connector threads
Gaging Connectors
Do — Clean and zero the gage before use Do Not — Use an out-of-specification
connector
— Use the correct gage type
— Use correct end of calibration block
— Gage all connectors before first use
Making Connections
Do — Align connectors carefully Do Not — Apply bending force to connection
— Make preliminary connection contact
lightly
— Over tighten preliminary connection
— Turn only the connector nut — Twist or screw any connection
— Use a torque wrench for final
connection
— Tighten past torque wrench “break”
point
a. Cleaning connectors with alcohol shall only be done with the instrument’s power cord removed, and in a well-ventilated
area. Allow all residual alcohol moisture to evaporate, and the fumes to dissipate prior to energizing the instrument.
Table 3-1 Connector Care Quick Reference Guide
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