CEMB USA N300 - Manual (Page 43)

Balancing function 6 - 9
Note:
The test mass value must be indicated in generic U units: the operator is free to
decide whether to convert these U into the physical units preferred (mg, g, kg, etc),
bearing in mind that the unbalance and required correction values will also be
expressed in the same U units.
Warning:
The test mass has been chosen correctly if it causes the vibration to vary enough in
each of the spins, compared to that of the first spin.
This can be considered satisfactory if at least one of the following occurred:
- the modulus varied by at least 30%
- the phase varied by at least 30°
Vibration measurement during the various calibration steps can be started and stopped by
pressing . If the value is stable enough to not require repetition
of the measurement, you can proceed to the next step by pressing . Pressing the
key after the last calibration step will take you back to the unbalance correction
calculation page, where the operator will find the required correction masses.