Seagate 100665905 ユーザーズマニュアル

12

Momentus XT Product Manual, Rev. D

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and 
begins counting down from its specified delay times to zero. If the standby timer reaches zero before any 
drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the 
drive accepts all commands and returns to Active mode when disc access is necessary.

This section provides the temperature, humidity, shock, and vibration specifications for Momentus XT drives.

Ambient temperature is defined as the temperature of the 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. 

 

Operating

20°C per hour (68°F per hour max), without condensation

Nonoperating

35°C per hour (95°F per hour max), without condensation

Operating

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

Nonoperating

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

Operating

37.7°C (99.8°F max)

Nonoperating

40°C (104°F max)

Operating

–304.8 m to 3,048 m (–1000 ft to 10,000+ ft)

Nonoperating

–304.8 m to 12,192 m (–1000 ft to 40,000+ ft)

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.

These drives comply with the performance levels specified in this document when subjected to a maximum 
operating shock of 350 Gs based on half-sine shock pulses of 2 ms. 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)