Spider DSA User’s Manual
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Figure 194: Order analysis parameters
Low/High RPM: The Low and High RPM define the range of RPM for RPM
measurements, Calculation of Order tracks and Band RMS Spectra. If the Spider-
80X detects that the current RPM is between the Low and High RPM, it will take
the measurement and display it. Otherwise, the RPM readings on the control
panel will always display 0 and the RPM time streams will always display the
value of Low RPM.