Humidity Relative humidity, Altitude, Shock

2.9.2Humidity

2.9.2.1Relative humidity

Operating:	5% to 90% noncondensing (30% per hour max)

Nonoperating:	5% to 95% noncondensing (30% per hour max)

2.9.3Altitude

Operating:	–60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)

Nonoperating:	–60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)

2.9.4Shock

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.

2.9.4.1Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 70 Gs (read) and 40 Gs (write) based on half-sine shock pulses of 2ms. Shocks should not be repeated more than two times per second.

2.9.4.2Nonoperating shock

1TB and 500GB models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse of 2ms duration.

2TB models

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 based on a nonrepetitive half-sine shock pulse of 2ms duration.

2.9.5Vibration

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.

2.9.5.1Operating vibration

The maximum vibration levels that the drive may experience while meeting the performance standards specified in this document are specified below.

5–22 Hz	0.25 Gs

22–350 Hz	0.50 Gs

350–500 Hz	0.25 Gs

20 - 1500Hz	12.5 rads/s2 w/RVFF
*(RROV)

* Rotary Random Operating Vibration

2.9.5.2Nonoperating 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.

10–500 Hz Linear Random

4.9 Grms ref

CONSTELLATION ES SERIAL ATA PRODUCT MANUAL, REV. F