VMI VIBER X4, Руководство пользователя

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Vibration Measurement Instruments
Spectra
This measurement displays a spectrum (chart) of the frequencies
at which the machine component is vibrating and the amplitude
of the vibration at each of these frequencies.
Measure Spectra
There are three windows at the top of the screen. The left win-
dow shows the amplitude of the cursor, the middle window
shows the frequency of cursor and the right window shows the
total value.
The scale for the value is displayed above the spectrum chart
and the frequency range is displayed below the spectrum chart.
The following actions can be performed during measurement:
• Waveform F1 Instead of spectra, the waveforms are shown.
• Default zoom Ctrl + F1 Set the zoom back to default mode.
• Cursor type Ctrl + F2 Change cursor type between LINE,
PEAK and FREE.
• Settings F3 Enter the settings menu.
• Aux cursors Ctrl + F3 Add different types of cursors such as
Harmonic or Sideband.
• Move the cursor using the Left and Right arrow keys. When
pressing the key once, the cursor will move one line at a time,
when keeping the key pressed, the cursor will move 10 lines at a
time.
• Zoom in or out of the X Scale using the Ctrl + Right arrow
keys or the Ctrl + Left arrow keys. The cursor remains visible
on the spectra during zooming.
• Zoom in or out of the Y Scale using the Up or Down arrow
keys. Notice that once the zoom occurs on the X or Y Axis,
the plot will not be auto scaled. Instead, the manual settings
are used. Press Ctrl + F1 (Default Zoom) to re-enable the auto
scaling mode.
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