Emerson CSI 9420 Reference Manual page 58

Configuration
Spectra
Click Spectra to display spectral and analysis parameter data and to configure spectral data
acquisition settings. You can import spectral data to AMS Machinery Manager for further
analysis.
Note
You must have the Advanced Diagnostics application license to view this feature. For more
information on the Advanced Diagnostics application, see
Figure 2-33:
The Fmax settings define the default frequency range of the thumbnail spectra for Velocity
and PeakVue. If you enable the Average Velocity option in AMS Machinery Manager, you
can configure the high-resolution Velocity Analytical spectrum to return 400 or 800 lines
of resolution, with averaging. If the Average Velocity option is not enabled in AMS
Machinery Manager, the spectrum is calculated at 1600 lines of resolution, with no
averaging.
When vibration data is acquired, a PeakVue waveform is sampled for 3.2 seconds. If you
set the PeakVue True Fmax to 1000 Hz, the first 1.6 seconds of the PeakVue waveform is
used for the analytical spectrum. If you set the Fmax to 500 Hz, the entire 3.2 second
PeakVue waveform is used to calculate the analytical spectrum. Regardless of what you
choose in Fmax, the overall PeakVue trend parameter is calculated over the entire 3.2
second waveform.
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Spectra
Section 2.4.1.
MHM-97408, Rev 15