FUJITSU MPD3XXXAH - Manual (Page 23)

C141-E072-01EN 1 - 8
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 MPD3091AH MPD3137AH MPD3182AH
Idle mode
(DRIVE READY)
3.7 bels 3.8 bels 3.9 bels
Seek mode
(Random) 4.3 bels 4.4 bels 4.5 bels
Sound Pressure
(Typical at 1m) Idle mode
(DRIVE READY)
32 dBA 33 dBA 34 dBA
Seek mode
(Random) 38 dBA 39 dBA 40 dBA
Sound Power
per ISO 7779 and
ISO9296
(Typical at 1m)