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2.9 Environmental specifications
2.9.1
Drive case temperature
This section provides the temperature, humidity, shock, and vibration specifications. Ambient temperature is defined as
the temperature of the environment immediately surrounding the drive. Above 1000ft. (305 meters), the maximum
temperature is derated linearly by 1°C every 1000 ft. Drive case temperature should be measured at the location indicated
in
Figure 4
.
Operating (drive case temperature)
Nonoperating (ambient)
2.9.2
Temperature gradient
Operating
Nonoperating
2.9.3
Humidity
2.9.3.1
Relative humidity
Operating
Nonoperating
2.9.3.2
Wet bulb temperature
Operating
Nonoperating
2.9.4
Altitude
Operating
Nonoperating
2.9.5
Shock
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive mounting
screws. Shock may be applied in the X, Y or Z axis.
2.9.5.1
Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum operating
shock of 80 Gs based on half-sine shock pulses of 2ms during read operations. Shocks should not be repeated more than
two times per second.
2.9.5.2
Nonoperating shock
The nonoperating shock level that the drive can experience without incurring physical damage or degradation in
performance when subsequently put into operation is 300 Gs (for 3TB and 2TB model) and 350 Gs (for 1TB) based on a
nonrepetitive half-sine shock pulse of 2ms duration.
Seagate Video 3.5 HDD Product Manual, Rev. B
0° to 75°C (32° to 167°F)
–40° to 70°C (–40° to 158°F)
20°C per hour (68°F per hour max),
without condensation
30°C per hour (86°F per hour max)
5% to 95% noncondensing
(30% per hour max)
5% to 95% noncondensing
(30% per hour max)
37.7°C (99.9°F max)
40°C (104°F max)
–60.96m to 3048m (–200 ft. to 10,000+ ft.)
–60.96m to 12,192m (–200 ft. to 40,000+ ft.)
15
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