User's Manual

72
Brand of ACOEM
4.9 BALANCING RESULT
4.9.1 Result
After the last trial run, the instrument displays computed balancing weights. It is possible to select:
 The reference run: indicate the run to which balancing weights are to be added. Generally, it is either the
free run (run without any trial weight), or the last run (run with all trial weights) when it is difficult or
impossible to remove trial weight.
 Run-out: Yes or No. For measurement done with proximity probe only: see § 4.6.
Go to previous step
Go to next step
See the rotor from the other side (for 2-plane balancing only)
Go to the steps browser to reach directly any other accessible step (see § 4.11)
Exit: return to balancing test list (see § 4.3)
4.9.2 Balancing run definition
The screen is initialized with the computed balancing weights of the previous step.
It is necessary to input the value and angular position weight effectively installed on the rotor.
Tools for balancing weight definition:
Equivalent weight: 2 tools are available:
 Split: If the weight cannot be installed at the required position, it is possible to choose 2 other positions
on both sides. This tool computes weights to be installed at these 2 positions.
 Combination: This tool let you combine 1 or 2 weights already present (W2, W3) with the correction
weight (C), to replace them by a single weight (M)
The equivalent correction will be automatically used in the weights definition screen.
Simulation: show the
theoretical vibration expected for the set of defined weights.
4.9.3 Balancing run measurement
Once the balancing weights installed, start again the machine and measure to control the vibration level.
The use is the same as for free run: see § 4.7.
Go to next step to display the balancing quality grade.