3Adjustments
72 Keysight E4416A/E4417A Power Meters Service Guide
Introduction
This chapter describes adjustments and checks which ensure proper performance
of the power meter.
Adjustments are not usually required on any regular basis. They are normally
performed only after a performance test has indicated that some parameters are
out of specification. Performance tests must be completed after any repairs that
may have altered the characteristics of the power meter. Performance tests are
detailed in Chapter 2. To determine which performance tests and adjustments to
perform after a repair, see “Post-Repair Adjustments” on page 73.
Safety Considerations
This warning must be followed for your protection and to avoid damage to the
equipment being used.
Equipment Required
The adjustment procedures include a list of recommended test equipment. The
test equipment is also identified on the test setup diagrams.
Adjustments described in this chapter are performed with power applied to
the instrument and with protective covers removed. Maintenance should be
performed only by trained personnel who are aware of the hazards
involved. When the maintenance procedure can be performed without
power, the power should be removed.
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