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4 environmental specifications, 5 acoustic noise – FUJITSU MPA3043AT User Manual

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C141-E034-02EN

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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/h 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

Sound Pressure

• Idle mode (DRIVE READY)
• Seek mode (Random)

35 dBA typical at 1 m
40 dBA typical at 1 m

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