Machinery Balancing Module
How to Perform a Single-Plane Procedure
How to Estimate Trial Weights
At times, you may wish the Microlog to calculate the trial weight for you.
The Trial Weight Estimate is based on the criteria that the trial
run centrifugal force does not exceed 10% of the bearing shaft
load.
To estimate the trial weight:
• Enter the trial weight’s Angle placement (typically zero) and Radius.
• In the Rotor Mass field, enter the rotor mass supported in this plane (in the Weight
Units specified on the Balance Setup screen). Use total rotor mass for single plane
and 50% of mass for 2 plane. Press the OK function button. The Trial Weight field
updates to display the estimated trial weight.
Figure 5 - 9.
An Estimated Trial Weight Screen.
Perform the Trial Run
• With the trial weight securely attached to the machine, start the machine and bring
it back up to the same speed used with the reference run (initial run).
• Press an Enter / Fire button. The Trial Run screen displays.
• Initially the trial run screen does not show data. Press the Start button or an Enter
/ Fire key to record the trial run.
SKF Microlog - GX Series 5 - 15
User Manual
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