The Window parameter defines the weighting window for the FFT analysis:
Hanning, Rectangle, Flat Top or Kaiser-Bessel.
The Lines parameter defines the number of lines for the FFT analysis: 1600,
800 or 400.
There are two averaging options (Averaging):
Linear and Exponential. In case of
Exponential averaging, the Time Constant
parameter appears in this screen. You can
select: 100ms, 125ms, 200ms, 500ms, 1.0s,
2.0s, 5.0s or 10.0s.
You can easily get into the FFT screen from
the spectrum view. It is necessary to enter the
function field (FFT) with the â–² / â–¼ key and
press <ENTER>.
11.3 CUSTOMIZING THE FFT SPECTRA VIEW
The Display section contains elements for
customizing measurement result presentation
and display parameters.
The following positions are used for customizing the presentation of FFT results:
Display Modes allowing you to switch on the Spectrum view,
Display Scale allowing you to adjust scales of a spectrum plot and toggle the grid,
Spectrum View allowing you to select spectra to be viewed: instantaneous, averaged, maximum or minimum,
Spectrum Type allowing you to change the spectrum type presented on the display in vibration modes:
acceleration, velocity or displacement; this position appears in the vibration modes.
11.3.1 Enabling the FFT spectra view
Spectrum view
The Spectrum position in the Display Modes
list becomes available for the FFT function. It
enables/disables the spectrum plot view.
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