Trial Weight Reading (Left Trial Reading); Right Trial Reading; Suggest Trial Weight Mass - Commtest Instruments vb Series Instrument Reference Manual

Trial Weight Reading (Left Trial Reading)

Used to take a trial weight reading in single plane balancing and the
left trial weight reading in dual plane balancing.
The diagram shows the factory default values for trial weight mass
(1.00) and angle (0°).
Note: Your trial weight must be of a sufficient mass to change the
rotor imbalance so that the instrument can perform its calculations
accurately (the industry norm is approximately 30% change in
amplitude or 30° in phase). If in doubt use the Suggest Trial Weight
Mass Calculator (described shortly).

Right Trial Reading

Used to take a trial weight reading in dual plane balancing.

Suggest Trial Weight Mass

Opens the Suggest Trial Weight Calculator. This calculates a
suitable trial weight to cause a significant change from the initial
reading.
Section 9: Balancing Rotors 133
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