Toshiba Corporation Digital Media Network Company
Page 22 of 153
© 2003, Copyright TOSHIBA Corporation All Rights Reserved
9. ENVIRONMENTAL LIMITS
9.1 Temperature and Humidity
9.1.1 Temperature
Operating 5
o
C- 60
o
C
Gradient 15
o
C / Hour maximum
Non- operating - 20
o
C- 65
o
C
Gradient 15
o
C / Hour maximum
Under shipment - 40
o
C- 70
o
C
Gradient 30
o
C / Hour maximum
( Packed in Toshiba’s original shipping package. )
The temperature of top cover and base must be kept under 65 at any moment to maintain the desire reliability.
9.1.2 Humidity
Operating 8%- 90% R.H. ( No condensation. )
Non- operating 8%- 90% R.H. ( No condensation. )
Under shipment 5%-
90% R.H. ( Packed in Toshiba’s original shipping package. )
Max. wet bulb
29
o
C (Operating)
40
o
C (Non- operating)
9.2 Vibration
Operating 4 mm p-p displacement.
5-15 Hz
No unrecoverable error.
19.6 m/s
2
( 2.0G )
15- 500 Hz
Sine wave sweeping 1 oct./ minute
No unrecoverable error.
Non operating 10 mm p-p displacement.
5-15 Hz
No unrecoverable error.
49 m/s
2
( 5.0G )
15- 500 Hz
Sine wave sweeping 1 oct./ minute
No unrecoverable error.
9.3 Shock
Operating 4,900 m/s
2
( 500G )
2 msec half sine wave
Repeated twice maximum / second
No unrecoverable error.
Non- operating 14,700 m/s
2
( 1500G ) 1 msec half sine wave
Repeated twice maximum / second
No unrecoverable error.
Under shipment 70 cm free drop
No unrecoverable error.
Apply shocks in each direction of the drive’s three
mutually perpendicular axes, one axis at a time.
( Packed in Toshiba’s original shipping package. )