Device Overview

1.5 Acoustic Noise

Table 1.5 lists the acoustic noise specification.

Table 1.5 Acoustic noise specification

Item

Specification

 

 

Sound Pressure

 

• Idle mode (DRIVE READY)

30 dBA typical at 1 m

 

 

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, one octave per minute)

 

Operating

5 to 500 Hz, 1.0G 0-peak (MHJ series)

 

 

5 to 400 Hz, 1.0G 0-peak (MHK series)

 

 

(without non-recovered errors) (9.8 m/s2 0-peak)

Non-operating

5 to 500 Hz, 5G 0-peak (MHJ series)

 

 

5 to 400 Hz, 5G 0-peak (MHK series)

 

 

(no damage) (49 m/s2 0-peak)

 

 

Shock (half-sine pulse)

 

Operating

150G 0-peak (1,470 m/s2 0-peak)

 

 

2 ms duration (without non-recovered errors)

Non-operating

700G 0-peak (6,860 m/s2 0-peak)

 

 

1 ms duration (no damage)

 

 

120G 0-peak (1,176 m/s2 0-peak)

 

 

11 ms duration (no damage)

 

 

 

1-8

C141-E088-01EN

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Fujitsu MHK2090AT Acoustic Noise, Shock and Vibration, Acoustic noise specification, Shock and vibration specification