Lenovo M57e - ThinkCentre - 9481 Hardware Maintenance Manual page 39

Environment
• Air temperature:
Operating: 10° to 35°C (50° to 95°F)
Non-operating: 10° to 60°C (50° to 140°F)
• Humidity:
Operating: 10% to 80% (10% per hour, non condensing)
Non-operating: 10% to 90% (10% per hour)
Transit: 0% to 90% (10% per hour)
• Maximum altitude:
Operating: -50 to 10,000 ft (-15.2 to 3048 m)
Non-operating: -50 to 35,000 ft (-15.2 to 10,668)
Electrical input
• Input voltage:
– Low range:
Minimum: 100 V ac
Maximum: 127 V ac
Input frequency range: 50/60 Hz
Voltage switch setting: 115 V ac
– High range:
Minimum: 200 V ac
Maximum: 240 V ac
Input frequency range: 50/60 Hz
Voltage switch setting: 230 V ac
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Chapter 3 General information
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