1.4 Transducer and mounting should be such that they will give a reasonably flat response from 0.4 x running speed to maximum display frequency Fmax. Resolution of 3200 lines or equivalent is required to determine if frequency is 2 times line frequency or a harmonic of running speed. DC motors shall be tested at highest rated speed. 2.4 All vibration checks will be done with a half key in the key way. 2.5 Motor feet are to be checked for flatness to a least detect bent or angled feet.
Any defects are to be reported in documents supplied with motor.
2.6 Vibration shall be measured as close as possible to bearing location. 3.3 Vibration requirements as per Section 2 are as follows. See Tables 1 and 2 for summary. It is not required to supply vibration data supporting this criterion. Records of overall vibration readings shall be supplied with the motor.