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4 environmental specifications, 5 acoustic noise – FUJITSU MPG3XXXAH User Manual

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C141-E112-01EN

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1.4

Environmental Specifications

Table 1.4 lists the environmental specifications.

Table 1.4

Environmental specifications

Temperature

• Operating

• Non-operating
• Thermal Gradient

5°C to 55°C (ambient)
5°C to 60°C (disk enclosure surface)
–40°C to 60°C
20°C/hour or less

Humidity

• Operating
• Non-operating
• Maximum Wet Bulb

8% to 80%RH (Non-condensing)
5% to 85%RH (Non-condensing)
29°C

Altitude (relative to sea level)

• Operating
• Non-operating

–60 to 3,000 m (–200 to 10,000 ft)
–60 to 12,000 m (–200 to 40,000 ft)

1.5

Acoustic Noise

Table 1.5 lists the acoustic noise specification.

Table 1.5

Acoustic noise specification

Model

MPG3102AH

MPG3153AH
MPG3204AH

Idle mode (DRIVE READY)

3.6 bels

3.7 bels

Sound Power
per ISO 7779 and ISO9296
(Typical at 1m)

Seek mode (Random)

4.0 bels

4.1 bels

Idle mode (DRIVE READY)

31 dBA

32 dBA

Sound Pressure
(Typical at 1m)

Seek mode (Random)

35 dBA

36 dBA