Fujitsu MHV2120BH 用户手册

Fujitsu

Device Overview

1-10

C141-E224

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)

2.6 B

28 dB

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

2940 m/s

2

0-peak (300G 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)