Filter
Top Products
12 Momentus 7200.4 SATA Product Manual, Rev. C
2.10 Environmental specifications
This section provides the temperature, humidity, shock, and vibration specifications for Momentus 7200.4
SATA drives.
2.10.1 Ambient temperature
Ambient temperature is defined as the temperature of th
e environment immediately surrounding the drive.
Actual drive case temperature should not exceed
65°C (149°F) within the operating ambient conditions.
Above 1000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
2.10.2 Temperature gradient
Operating 20°C per hour (68°F per hour max), without condensation
Nonoperating 35°C per hour (95°F per hour max), without condensation
2.10.3 Relative humidity
Operating 5% to 95% noncondensing (30% per hour max)
Nonoperating 5% to 95% noncondensing (30% per hour max)
2.10.4 Wet bulb temperature
Operating 37.7°C (99.8°F max)
Nonoperating 40°C (104°F max)
2.10.5 Altitude
Operating –304.8 m to 3048 m (–1000 ft to 10,000+ ft)
Nonoperating –304.8 m to 12,192 m (–1000 ft to 40,000+ ft)
2.10.6 Shock
All shock specifications assume that th
e 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.
Note. Ad
ditional shock protection is provided by the Free Fall Protection feature on ST9500420ASG,
ST9320423ASG, ST9250410ASG, ST9160412ASG, ST9120410ASG and ST980412ASG models.
See Section 2.13.1 for additional information about this feature.
2.10.6.1 Operating shock
These drives comply with the pe
rformance levels specified in this document when subjected to a maximum
operating shock of 350 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than one time per axis.
Operating: 0°C to 60°C (32°F to 140°F)
Nonoperating: –40°C to 70°C (–40°F to 158°F)