Datasheet

7K500 OEM SPECIFICATION
Page 25 of 176
6
6 6
6 Specification
SpecificationSpecification
Specification
6.1
6.16.1
6.1 Environment
EnvironmentEnvironment
Environment
6.1.1
6.1.16.1.1
6.1.1 Temperature and humidity
Temperature and humidityTemperature and humidity
Temperature and humidity
Operating conditions
Temperature
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude
5 to 55°C (See note below)
8 to 90% non-condensing
29.4°C non-condensing
20°C/hour
–300 to 3048 m (10,000 ft)
Non-operating conditions
Temperature
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude
–40 to 65°C
5 to 95% non-condensing
40°C non-condensing
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.
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
Temperature (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
6.1.26.1.2
6.1.2 Corrosion test
Corrosion testCorrosion test
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.