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Environmental18
Dynamics
Noise
Airflow
HP Ultrium drives require forced airflow from front to back.
Parameter Specification
Operating sine vibration 0.31G pk 5–500 Hz @ 1 octave/min with 15 min dwell at peak
resonance
Operating random vibration 0.31G rms 5–500 Hz 0.000194 g
2
/Hz
Operating shock 5G 3 ms half-sine (no performance change)
2G 11 ms half-sine (no performance change)
8G 11 ms half-sine (no data loss)
Pulse rate: 0.1 Hz
Non-operating sine vibration 1.0G pk 5–500 Hz @ 1 octave/min with 5 min dwell at peak
resonance
Non-operating random vibration 2.41G rms 5–500 Hz
Non-operating shock 90G 3 ms half-sine (no damage)
30G 26 ms trapezoidal (no damage)
Transportation sine vibration 0.5G pk 5–200–5 Hz @ 1 octave/min with 5 min dwell at peak
resonance
Transportation random vibration 1.47G rms 5–200 Hz
Package drop 0.91m (36 in)
Parameter Specification
Operating acoustic noise <5.0 bel sound power
Parameter Specification
Airflow (operating and non-operating) 0.17 m
3
/min (6 cu ft/min) at 35ºC ambient operation, rising to
0.23 m
3
/min (8 cu ft/min) for up to 40ºC ambient operation