Harmonics Screen Mode - Fluke 39 User Manual

Functions and Screen Modes

Harmonics Screen Mode

The Harmonics Screen Mode (Figure 11) uses a set of screens to display
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magnitude bars for all harmonics and digital information about the selected
harmonic. Select a harmonic by pressing and to move the cursor
along the bottom scale. DC, 1 (the fundamental frequency), and harmonics 2
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through 15 appear on the first screen. Harmonics 16 through 31 appear on
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the second screen. Switch between harmonics screens by pressing
when 15 is selected on the first screen or when 16 is selected on the
second screen.
At the top of the screen, the percentage shown compares the selected cursor
magnitude to either the fundamental (%F) or the total rms value (%R)
(fundamental and all harmonics). The Tester also shows the magnitude of the
cursor selection. The frequency of the selected harmonic is shown in Hertz
below the percentage.
Note
The watts harmonic screen always uses the %F (fundamental) definition.
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