DFI ES121-LR - Manual (Page 10)

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10
Introduction
Battery
• Danger of explosion if battery incorrectly replaced�
• Replace only with the same or equivalent type recommended by the manufac-
turer�
• Dispose of used batteries according to local ordinance�
Temperature
• Do not leave the system in an environment where the storage temperature is
below -20 o C or above 70 o C�
• Do not operate the system in an environment where the temperature is below
0 o C or above 45 o C�
• The ventilation holes on the system are for air ventilation to protect the sys-
tem from overheating� Ensure that the ventilation holes are not obstructed�
Safety
• Keep the system away from rain and excess humidity�
• Do not expose the system to direct sunlight, and keep it away from sources of
heat such as radiators, space heaters, stoves, etc�
• Do not leave the computer in an area of strong magnetic fields�
• Place the system on a stable, level surface� Dropping it may cause damage�
• Keep the system away from liquids as liquid may accidentally flow into the air
ventilation openings� This could cause fire or electrical shock�
Contact Service Personnel
• If one of the following occurs, consult a service personnel:
- The power cord or plug is damaged�
- Liquid has penetrated the system�
- The system has been exposed to moisture�
- The system is not working properly�
- The system dropped or is damaged�
- The system has obvious signs of breakage�
• For safety reasons, the system should be opened only by a qualified service
personnel�
Cleaning
• Disconnect the system from the AC outlet before cleaning�
• Use a damp cloth to wipe the outer surface of the system�
• Do not use liquid or spray detergents for cleaning�