Spectrum - Adash VA5 Pro User Manual

ADASH Adash 4500 – VA5Pro
If you want to use this function you need to define the correct measurement parameters (RMS velocity
measurement in 10-1000Hz range) and the group for machine. The ISO Machine Group is defined in the
sensor dialog for the measured AC channel.
The color of circle is related to the machine condition class A,B,C,D ( the green for A or B, the orange for C and
the red for D). Also the information about machine group and foundation are displayed. The limit which is
exceeding is also displayed at the bottom.

Spectrum

The Overlap enables you to make the averaging faster. For example 75% overlap means, that ending 75% of
actual time signal + 25% of new signal is used for next average.
Note! The Overlap isn't possible for time synchro averaging.
Note! The Overlap is possible only for the trigger sources which don't require waiting for trigger between
averages. That means only freerun, external and manual triggering enable the Overlap.
The information in top right contains averaging (2/8), speed (42.1Hz) and bellow them cursor position (16.5Hz),
order (f / speed = 0.392), value (0.132mm/s) and total RMS of spectrum (0.619mm/s).
Full spectrum
Set Full Spectrum to yes. Remember to set correct angles of both sensors. It influences the calculation. The
FFT is applied to complex signal, first channel is real part and second channel is imaginary part.
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