FAG Detector III User Manual page 242

Detector will return an error message. You can then decide whether to repeat the
trial run with larger weights or accept these without making any changes.
Attach the sensors to the component and connect these to the BNC connectors
of the Detector as specified in the balancing configuration
Based on the geometrical values specified in the balancing configuration as
well as the imbalance measured in the reference run, the Detector calculates a
suggested value for the test weight. If one of the geometrical values or the
measured imbalance is zero, no suggested value is calculated (display "--").
Enter the data, attach the weights and confirm this on the Detector. The
position of a test weight is counted from the rising or falling edge of the trigger
mark (depending on which one you selected in the configuration
check it up in the Balancing menu Settings -> Trigger sensor -> Trigger pos..
The angle of the weight is always counted AGAINST the direction of shaft
rotation. You can specify it in degrees or, if you have set discrete positions, as a
position number. Here, P1 is the first position from the trigger mark AGAINST
the direction of rotation, P2 the second, etc. When using discrete positions, you
can apply one or two test weights.
The Detector guides you through the measurement, determines the amplitude
and phase of the vibration at the sensor positions and displays the values.
If the change in vibration is less than 20% with respect to the reference run for
all sensors, the Detector will warn you that the test weights may be too small.
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