Environmental Specifications; Environmental/Power Requirements - Fujitsu MAH3091MC - Enterprise 9.1 GB Hard Drive Product/Maintenance Manual

2.1.3

Environmental specifications

Table 2.2 lists environmental and power requirements.
Item
Operating
Non-operating
Temperature (*1)
DE surface temperature at operating
Gradient
Operating
Non operating
Relative humidity
Maximum wet bulb temperature
Operating (*3)
Vibration (*2)
Non-operating (*4)
Operating
Shock (*2)
Non-operating
Operating
Altitute
(above sea level)
Non-operating
+12 VDC ±5%
Power
requirements
Input power (*5)
+5 VDC ±5%
(*6)
Ripple (*7)
For detail condition, see Section 4.1.
(*1)
Vibration applied to the drive is measured at near the mounting screw hole on the frame as much
(*2)
as possible.
At random seek write/read and default on retry setting with log sweep vibration.
(*3)
At power-off state after installation
(*4)
Vibration displacement should be less than 2.5 mm.
Input voltages are specified at the connector.
(*5)
The terminator power pin (SCSI connector) which supplies power to other terminators is not used
(*6)
(See Section 4.3).
High frequency noise is less than 100 mVp-p.
(*7)
2 - 4
Table 2.2

Environmental/power requirements

MAJ3364 series MAJ3182 series MAJ3091 series MAH3182 series MAH3091 series
Packaged 3.1 mm (5 to 20Hz)/49m/s
Ready (Average) 0.65 A
Peak within
100 µs at spin-up
Random W/R 1.0 A
(about 80 IOPS)
Ready
Random W/R
(about 80 IOPS)
C141-E103-02EN
Specification
5 to 50°C
–40 to 60°C
5 to 55°C
15°C/h or less
20 to 80%RH
20 to 80%RH
Packaged (inside of a week) 5 to 90%RH
29°C (no condensation)
2
0.3 mm (5 to 20Hz)/4.9m/s (0.5G) (20 to 300 Hz) or less
2
3.1 mm (5 to 20Hz)/49m/s (5G) (20 to 300Hz) or less
2
(5G) (20 to 300Hz) or less
2
196.1m/s (20G) (2 ms)
2
1961.3m/s (200G) (2 ms)
–60 m to 3,000 m
–60 m to 12,000 m
0.5 A 0.45 A
3.0 A
0.85 A 0.8 A
0.75A
0.9 A
+5 V/+12 V 250 mVp-p
0.25 A 0.2 A
0.65 A 0.55 A
0.7 A
0.8 A