SPM leonova emerald, User Manual

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Vibration measurement
To evaluate a spectrum, you need to know the RPM
of the shaft at the time of vibration measurement.
Mark ‘Variable speed´ (1). This forces a speed meas -
urement before you can measure the vibration.
‘Time signal unit ‘(2) can be ACC, VEL or DISP.
On the line ‘Save’ (3) you determine the type of
measuring results you want. There are five alterna-
tives.
‘Time signal (FFT calculated)’ saves the time signal
and calculates the FFT.
‘Full spectrum’ returns a 1600 line velocity spectrum.
By default, the range is 2 to 1000 Hz.
‘Peaks’ will save the number of peaks you input under
‘No. of peaks to save’ (4). A peak is a spectrum line
with a higher amplitude than the lines on either side
of it. Thus, a 1600 line spectrum can contain max.
800 peaks.
‘Condition parameters’ selects the RMS vibration
values and excludes the spectrum.
‘Time signal and FFT’ saves the time signal and the
calculated FFT.
The line ‘Direction’ (5) lets you select one of the
three measurement directions. Your choice is then
displayed in the measurement window.
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