FUJITSU MHZ2250BJ - Manual (Page 34)

Device Overview
1.5 Acoustic Noise
Table 1.5 lists the acoustic noise specification.
Table 1.5 Acoustic noise specification
Item Specification
• Idle mode (DRIVE READY)
Sound Power
Sound Pressure (at 0.3m)
2.0 B [MHZ2160BJ/MHZ2120BJ/MHZ2080BJ]
2.5 B [MHZ2320BJ/MHZ2250BJ/MHZ2200BJ]
23 dB [MHZ2160BJ/MHZ2120BJ/MHZ2080BJ]
29 dB [MHZ2320BJ/MHZ2250BJ/MHZ2200BJ]
Note:
Measure the noise from the cover top surface.
1.6 Shock and Vibration
Table 1.6 lists the shock and vibration specification.
Table 1.6 Shock and vibration specification
Item Specification
Vibration (Swept sine, 1/4 octave per minute)
• Operating
Non-operating
5 to 500 Hz, 9.8m/s 2 0-peak (1G 0-peak)
(without non-recovered errors)
5 to 500 Hz, 49m/s
2 0-peak (5G 0-peak)
(no damage)
Shock (half-sine pulse)
• Operating
• Non-operating
3185 m/s 2 0-peak (325G 0-peak)
2ms duration
(without non-recovered errors)
8820 m/s 2 0-peak (900G 0-peak)
1ms duration
1176 m/s 2 0-peak (120G 0-peak)
11ms duration
(no damage)
1-12 C141-E280