Fujitsu MPG3XXXAT manual Acoustic noise specification, MPG3102AT

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

		MPG3102AT
Sound Power	Model	MPG3153AT	MPG3307AT	MPG3409AT
		MPG3204AT
per ISO 7779 and
ISO9296	Idle mode (DRIVE READY)	3.3 bels	3.4 bels	3.1 bels
(Typical at 1m)
	Seek mode (Random)	3.6 bels	3.9 bels	3.6 bels
Sound Pressure	Idle mode (DRIVE READY)	28 dBA	29 dBA	25 dBA
(Typical at 1m)
	Seek mode (Random)	31 dBA	34 dBA	31 dBA

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