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2.9 Environmental specifications
2.9.1 Drive case temperature
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Drive
case temperature should be measured at the location indicated in
Operating
Nonoperating
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 2TB and 1.5TB models) and 350 Gs (for 1TB)
based on a nonrepetitive half-sine shock pulse of 2ms duration.
Pipeline HD Product Manual, Rev. A
Figure 4
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.)
.
14
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