MM0474
Figure 3.
Model 8477A power meter calibrator.
5.
CALIBRATION OF MODEL 432A POWER METER.
a. Using a power meter calibrator model 8477A
(1) Principle
(a) Apply known DC power to check meter accuracy.
(b) Power meter should read full scale on range selected.
(c) Adjust controls on model 8477A to check calibration factor, meter
linerity and zero carryover test.
(2) Procedure
(a) A typical equipment connection for power meter calibration is
shown in Figure 4.
If necessary, mechanically zero meter as learned in
previous lesson.
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