Lenovo IdeaCentre A720 - Manual (Page 22)

17
Safety and warranty guide
Set the monitor and screen to be
on the even level with or slightly
lower level than your line of sight
Adjust the elevation of the monitor
to a comfort angle of view
Keep your wrists in a comfort and
relaxed position
Keep your forearms on the even
level with the desktop
Keep your feet on the floor steadily
1. To avoid unexpected failure, pay attention to ensure the computer to operate
within the scope of environmental specifications and:
Adaptability index for product operation environment
Adaptability for power supply 220V ± 22V, 50Hz ± 1Hz
(Only For China Desktop)
90V - 264V, 50/60Hz
(Adaptive Voltage Positioning)
90V - 264V, 50Hz ± 1Hz
(With Voltage-selection Switch )
Operating temperature 10˚C - 35˚C
Relative operation humidity 35% - 80%
Storage & transportation temperature -40˚C - 55˚C
-20˚C - 55˚C (AIO)
Relative humidity for storage & transportation 20% - 93% (40˚C)
Atmosphere pressure 86 kPa - 106 kPa
Warning
It will cause irremovable failure when the computer is powered on
immediately after it is moved from the environment with low temperature to
the operating temperature, so make sure your computer to restore for more
than 2 hrs under the operating temperature.