S
EAGATE
L
APTOP
U
LTRATHIN
HDD SATA P
RODUCT
M
ANUAL
, R
EV
. C
10
D
RIVE
S
PECIFICATIONS
2.8
E
NVIRONMENTAL
S
PECIFICATIONS
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.
2.8.1
Shock
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.
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)
N
OTE
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.
