The Tachometer; The Balancing Menu - Commtest Instruments vb Series Instrument Reference Manual

The Tachometer

The tachometer provides the instrument with information regarding
the rotational speed of a rotor and the angle at which the rotor is
vibrating. The angle is measured from a fixed reference mark on the
rotor and is called the 'phase angle'. To balance a rotor it is
necessary to consider not just the amplitude of vibration but also the
phase angle. The amplitude shows the severity of the imbalance and
the phase angle indicates the geometry of the imbalance (i.e. the
location of the heavy spot). Tachometer Setup (page 23) contains
information on how to set up the tachometer to measure phase
angles.

The Balancing Menu

•
From the Main Menu press
Menu.
After initial and trial readings have been taken the Balancing Menu
will update to give you options to balance and review readings (menu
items 3 and 4).
126 Section 9: Balancing Rotors
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Example of Balancing Menu with no recordings taken
to display the Balancing