Measurement Computing eZ-Balance rev.9.0 - Manual (Page 7)

eZ-Balance 978691 Installing and Running the Application 1-3
Overview of the Balance Job
Each balance “job” in eZ-Balance is unique. For example, if you have 2 motor driven fans, 201 and 202,
you have 2 separate eZ-Balance Jobs, one for each machine. Each has its own set of configuration and
data files that can be stored and later retrieved. When you create a new eZ-Balance job the current
configuration is copied to the new job.
After you have configured your eZ-Balance job you are ready to begin the Balancing Process. You need to
collect vibration data at several machine conditions (runs). These runs include the initial “as found” run,
the trial run(s), and the optional trim run. The initial run is the machine’s condition prior to any balance
efforts. The trial run(s) measure the vibration effect of adding trial weights to each balance plane. The
number of trial runs equals the number of balance planes. Lastly, the optional trim run can be used to
measure the effect of the trial solution.
Vibration data is the vibration amplitude and phase measured at the machine’s running speed (frequency).
These values are commonly referred to as the first order amplitude and phase. Enter the trial weight and
location values prior to each trial run.
The vibration data can be either:
Automatically measured using the acquisition device, or
Entered manually using the keyboard.
The Balance Operations selection grid identifies where you are in the balance process via a green highlight
for the associated cell; for example “3 Trial Solution” as in the figure. After the trial runs have been
completed a trial balance solution can be determined. After the trim run is performed, you can obtain the
trim balance solution. Chapter 2 contains detailed information.
Balance Operations
Selection Grid