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Preventive Maintenance
Preventive maintenance consists of two tasks. It should be performed at least
every six months-more often if the instrument is used daily on a production
line or in a harsh environment.
Clean the CRT
Use a soft cloth and, if necessary, a mild cleaning solution.
Check the RF Front
Visually inspect the front panel connectors. The most important connectors
Panel Connectors
are those to which the DUT is connected, typically the RF cable end or
the RF IN connector. All connectors should be clean and the center pins
centered. The tigers of female connectors should be unbroken and uniform
in appearance. If you are unsure whether the connectors are good, gauge the
RF IN and RF OUT connectors to confirm that their dimensions are correct.
Figure 1-6. Maximum and Minimum Protrusion of Center Conductor From Mating Plane
Mating plane
Max = 0.207 in.
Min = 0.204 in.
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