FUJITSU MPB3052AT - Manual (Page 23)

C141-E045-02EN 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/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
Model MPB3021AT MPB3032AT
MPB3043AT MPB3052AT
MPB3064AT
Idle mode
(DRIVE READY)
3.6 bels 3.7 bels 3.8 bels
Seek mode (Random) 4.2 bels 4.3 bels 4.3 bels
Sound Pressure
(Typical at 1m) Idle mode
(DRIVE READY)
35 dBA
Seek mode (Random) 40 dBA
Operating
mode
Sound Power
per ISO7779 and ISO9296
(Typical at 1m)