Gen II User Manual
7-25 – Main Rotor Track & Balance Chapter 7 Revision 3.00, Apr 2020
7.2.5. – Data Acquisition
Upon selecting to acquire a measurement, the data acquisition screen appears. The screen banner
will contain the run number as well as the condition being measured. At this point vibration and
track data will be collected simultaneously. Within the screen, the analyzer will present the
“Average” RPM, IPS level, and Phase (clock) angle readings, Track data will not display at this
time, it will be displayed on the” Review Prior Run(s) Data” screen. The averaged measurement
will be used when calculating solutions. There is also an error value indication associated with
the averaged measurement.
NOTE
The error value will typically lower rapidly when the amplitude of vibration is high. When the
amplitude reaches a lower level (Approx. < 0.05 IPS) the error value may remain high. This is a
normal response and is not cause for alarm.
Press the [F1] “Reset” key to restart the measurement and averaging process for vibration
and track at any time. This may be performed as a means of validating the quality of a
measurement. If, after the Reset key is pressed, the average measurement does not return
to approximately the same value shown before, the quality of the measurement may be
questionable. If this occurs, repeat the averaging process and try it again until the
measurement values are similar both before and after resetting.
Press the [F2] “Polar” key to switch the display to a Polar Chart representation of the
vibration readings. (See Chapter 24 for additional navigation instructions for the Polar
Chart view.) Data collection is complete when the message “Complete! Press OK” is
displayed at the top of the screen. Press Ok to continue to the Review Prior Run(s) Data.
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