Environmental Tolerances; Ambient Temperature; Temperature Gradient; Humidity - Seagate MARATHON 1680 Product Manual

12 Marathon 2250 and Marathon 1680 Product Manual

1.8 Environmental tolerances

1.8.1 Ambient temperature

Operating 5° to 55°C (41° to 131°F)
Nonoperating –40° to 70°C (–40° to 158°F)
Caution. This drive needs sufficient airflow so that the maximum surface
temperature at the center of the top cover of the drive does not
exceed 62 degrees C (144 degrees F).

1.8.2 Temperature gradient

Operating 30°C/hr (86°F/hr) max, without condensation
Nonoperating 30°C/hr (86°F/hr) max, without condensation

1.8.3 Humidity

1.8.3.1 Relative humidity
Operating 8% to 80% noncondensing (10% per hour max)
Storage 8% to 90% noncondensing (10% per hour max)
Transit 5% to 95% noncondensing (10% per hour max)
1.8.3.2 Wet bulb temperature
Operating 29.4°C (85°F) max
Nonoperating 40°C (104°F) max

1.8.4 Altitude

Operating –300 m to 3,040 m (–1,000 ft to 10,000 ft)
Nonoperating –300 m to 12,190 m (–1,000 ft to 40,000 ft)

1.8.5 Shock

For shock specifications, it is assumed that the drive is mounted securely
with the input levels at the drive mounting screws. For nonoperating
specifications, it is assumed that the read/write heads are positioned in
the shipping zone.