CEMB USA N300 - Manual (Page 37)

Balancing function 6 - 3
Unbalance measurement and correction calculation.
Selecting the symbol in the main screen opens the Balancing function: the value of
the correction mass to be applied to plane P1 will be displayed based on the parameters of
the last calibration carried out. In the case of two-plane balancing, press the key
to display the correction mass on plane P2.
This page contains the following information:
1. channel that the correction displayed refers to (by convention the channel A sensor is
considered applicable to plane P1, and that of channel B to plane P2)
2. status of the channel displayed:
= enabled
= disabled
3. sensor connected to the channel
4. correction for addition of mass
5. synchronous filter width
6. value of the correction mass expressed in generic U units: the correspondence
between U and real units of mass (mg, g, kg, …) is determined during calibration
(see 6 – 6 Calibration procedure).
7. angular position in which to apply the correction mass to the rotating body (from 0°
to 359°)
8. velocity of the rotating body measured, from which the correction mass has been
calculated
9. type of balancing operation:
- single plane (with 1 sensor)
- on 2 planes with 2 sensors
- on 2 planes with 1 sensor, applied to P1
- on 2 planes with 1 sensor, applied to P2
In the case of two-plane balancing with a single sensor, the unbalance can only be
calculated after vibration has been measured on both planes. To do this, measurement
spins must be performed in pairs, positioning the detector alternately on the two planes.
An indication of the type of plane to be used each time is shown by the symbol “type of
balancing” as explained above. In this condition, pressing the
key changes the
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9
2 3
5
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7
8