64 Chadwick-Helmuth Company, Inc.
Chapter 5 - General Operation
Main Menu Options -
The Vibrex unit’s Main Menu screen offers the
user the following options:
Propeller Balance Used to acquire balance readings, provide
solutions, and compute the final installation of
balance weights on propellers.
Track and Balance Used to acquire readings and select the
Chadwick-Helmuth Model 135M-12 Strobex
Tracker for a visual blade track of propellers and
helicopter rotors.
Spectrum Analysis Used to identify sources of vibration. The
frequency (in RPM) of vibration is used to
identify the source and the amplitude (in IPS) to
determine the severity.
Status Used to initiate a self-test of the Vibrex unit. This
feature measures and displays both the battery
voltage and the power to the sensors. During the
test, the user first sees a rotating bar, followed by
a readout of the actual voltage level of the
batteries and whether the voltage supply to the
sensors is adequate.
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