Hitachi travelstar hds723020bla642 用户手册
7K200 SATA OEM Specification
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6 Specification
6.1 Environment
6.1.1
Temperature and humidity
Operating conditions
Temperature
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude
5 to 55°C (See note below)
8 to 90% noncondensing
29.4°C noncondensing
20°C/hour
–300 to 3048 m (10,000 ft)
8 to 90% noncondensing
29.4°C noncondensing
20°C/hour
–300 to 3048 m (10,000 ft)
Nonoperating conditions
Temperature
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude
–40 to 65°C
5 to 95% noncondensing
40°C noncondensing
20°C/hour
–300 to 12,192 m (40,000 ft)
5 to 95% noncondensing
40°C noncondensing
20°C/hour
–300 to 12,192 m (40,000 ft)
Table 12. Environmental condition
The system is responsible for providing sufficient air movement to maintain surface temperatures below
60°C at the center of top cover and below 63°C at the center of the drive circuit board assembly.
60°C at the center of top cover and below 63°C at the center of the drive circuit board assembly.
The maximum storage period in the shipping package is one year.
Specification (Environment)
0
10
20
30
40
50
60
70
80
90
100
-45
-35
-25
-15
-5
5
15
25
35
45
55
65
T emperature (degC)
Relative Humidity (%)
Operating
Non Operating
W etBulb 40'C
W etBulb29.4'C
41'C/95%
31'C/90%
65'C/23%
55'C/15%
Figure 1. Limits of temperature and humidity
6.1.2
Corrosion test
The hard disk drive must be functional and show no signs of corrosion after being exposed to a
temperature humidity stress of 50°C/90%RH (relative humidity) for one week followed by a temperature
and humidity drop to 25'C/40%RH in 2 hours.
temperature humidity stress of 50°C/90%RH (relative humidity) for one week followed by a temperature
and humidity drop to 25'C/40%RH in 2 hours.