Momentus 42 Product Manual, Rev. A
11
2.10
Environmental specifications
2.10.1
Ambient temperature
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 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
2.10.2
Temperature gradient
2.10.3
Humidity
2.10.3.1
Relative humidity
2.10.3.2
Wet bulb temperature
2.10.4
Altitude
Operating
5° to 55°C (41° to 131°F)
Nonoperating
–40° to 65°C (–40° to 153°F)
Operating
20°C per hour (68°F per hour max), without condensation
Nonoperating
30°C per hour (86°F per hour max)
Operating 5% to 90% noncondensing (30% per hour max)
Nonoperating 5% to 95% noncondensing (30% per hour max)
Operating 33°C (91.4°F max)
Nonoperating 40°C (104°F max)
Operating
–192.12 m to 3,048 m (–650 ft to 10,000+ ft)
Nonoperating
–304.8 to 12,192 m (–1,000 ft to 40,000+ ft)
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