Seagate Video 2.5 HDD Product Manual, Rev. J (Draft 1)
13
Drive Specifications
2.8
Environmental Specifications
This section provides the temperature, humidity, shock, and vibration specifications for Momentus drives.
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Above 1000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
The maximum allowable drive case temperature is 65°C (149°F)
2.8.1
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.
2.8.1.1
Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 400 Gs based on
half-sine shock pulses of 2ms. Shocks should not be repeated more than one time per axis
2.8.1.2
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 800 Gs based on a nonrepetitive half-sine shock pulse of 2 ms duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently
put into operation is 1000 Gs based on a nonrepetitive half-sine shock pulse of 1 ms duration.
2.8.2
Vibration
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive mounting screws. Vibration may
be applied in the X, Y, or Z axis.
2.8.2.1
Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified in this document are specified
below.
2.8.2.2
Nonoperating vibration
The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or degradation in performance
when subsequently put into operation are specified below.
Table 5: Environmental specifications
Parameters
Operating
Non-Operating
Ambient temperature
0° to 60°C (32° to 140°F)
-40° to 70°C (-40° to 158°F)
Temperature gradient
20°C per hour (68°F per hour) max,
without condensation
35°C per hour (95°F per hour) max,
without condensation
Humidity
5% to 95% non-condensing
(30% per hour)
5% to 95% non-condensing
(30% per hour)
Wet bulb
37.7°C (99.8°F) max
40°C (104°F) max
Altitude
-304.8m to 3048m
(-1000ft to 10,000ft)
-304.8m to 12,192m
(-1000ft to 40,000ft)
Note
The recommended storage period:
• 1 year under controlled conditions of 34°C 90%RH or less
• 90 days in uncontrolled storage conditions
5–200 Hz
2.0 Gs (0 to peak). Max displacement may apply below 10 Hz.
201–500 Hz
1.0 Gs (0 to peak).
5–500 Hz
5.0 Gs (0 to peak). Max displacement may apply below 22 Hz.
