Fujitsu MPG3XXXAH-E manual Environmental Specifications, Acoustic noise specification

1.4Environmental Specifications

Table 1.4 lists the environmental specifications.

	Table 1.4	Environmental specifications
Temperature
•	Operating		5°C to 55°C (ambient)
			5°C to 60°C (disk enclosure surface)
•	Non-operating		–40°C to 60°C
•	Thermal Gradient		20°C/hour or less
Humidity
•	Operating		8% to 80%RH (Non-condensing)
•	Non-operating		5% to 85%RH (Non-condensing)
•	Maximum Wet Bulb		29°C
Altitude (relative to sea level)
•	Operating		–60 to 3,000 m (–200 to 10,000 ft)
•	Non-operating		–60 to 12,000 m (–200 to 40,000 ft)

1.5Acoustic Noise

Table 1.5 lists the acoustic noise specification.

Table 1.5 Acoustic noise specification

Sound Power	Model	MPG3204AH-E	MPG3307AH-E
			MPG3409AH-E
per ISO 7779 and ISO9296
	Idle mode (DRIVE READY)	3.6 bels	3.3 bels
(Typical at 1m)
	Seek mode (Random)	4.0 bels	3.8 bels
Sound Pressure	Idle mode (DRIVE READY)	31 dBA	28 dBA
(Typical at 1m)
	Seek mode (Random)	35 dBA	33 dBA

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