Seagate ST3300655LC Cheetah 15K.7 FC Product Manual - Page 39
Vibration, Acoustics, Air cleanliness
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7.4.4.2 Vibration a. Operating-normal The drive as installed for normal operation, shall comply with the complete specified performance while subjected to continuous vibration not exceeding 10 - 300 Hz 301- 500 Hz 1.0 G RMS (0 to peak) 0.5 G RMS (0 to peak) Vibration may be applied in the X, Y, or Z axis. b. Operating-abnormal Equipment as installed for normal operation shall not incur physical damage while subjected to periodic vibration not exceeding: 15 minutes of duration at major resonant frequency Vibration occurring at these levels may degrade operational performance during the abnormal vibration period. Specified operational performance will continue when normal operating vibration levels are resumed. This assumes system recovery routines are available. Operating abnormal translational random flat profile 5 - 500 Hz 10 - 300 Hz 0.75 G (0 to peak) 0.0029 G2/Hz c. Non-operating The limits of non-operating vibration shall apply to all conditions of handling and transportation. This includes both isolated drives and integrated drives. The drive shall not incur physical damage or degraded performance as a result of continuous vibration not exceeding 5 - 22 Hz 22 - 350 Hz 350 - 500 Hz 0.25 G (0 to peak, linear, swept sine, 0.5 octive/min) 3 G (0 to peak, linear, swept sine, 0.5 octive/min) 1 G (0 to peak, linear, swept sine, 0.5 octive/min) Vibration may be applied in the X, Y, or Z axis. 7.4.5 Acoustics Sound power during idle mode shall be 3.4 bels typical when measured to ISO 7779 specification. Sound power while operating shall be 3.8 bels typical when measured to ISO 7779 specification. There will not be any discrete tones more than 10 dB above the masking noise on typical drives when measured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the masking noise on any drive. 7.4.6 Air cleanliness The drive is designed to operate in a typical office environment with minimal environmental control. Cheetah 15K.7 FC Product Manual, Rev. C 33