For Type B rotors, in the event tha

For Type B rotors, in the event that the criteria reported in table 2 cannot be fully met, the readings of the proximity probes may be adopted, and the level of balancing is considered acceptable if :- support vibration is within the average of limits from table 1 and 2 (average between Type A and B). - the vibration readings at proximity probes, with locked supports, are within the limits reported in table 3. Such limits, as per API612 7th par. 9.7.6.3 are referred to peak-to-peak vibration amplitude, filtered on synchronous speed, with compensation of run-out.