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2.6. Environmental
Requirements
• The Notebook is most reliably operated at an ambient temperature
between 5° C (+41° F) and 30° C (+86° F) and at a relative humidity
between 20% and 80% (without condensation).
• When powered off, the Notebook can be stored at temperatures
between 0° C and 60° C (+32° F and 140° F).
• During a thunderstorm, disconnect the mains plug and the anten-
na plug. For extra safety, we recommend using an overvoltage pro-
tection device to prevent the Notebook from sustaining damage as
a result of power surges or lightning strikes.
• After transporting the Notebook, wait until the device has reached
room temperature before switching it on. Large changes in tem-
perature or fluctuations in humidity can cause moisture build-up
within the Notebook due to condensation. This can cause an elec-
trical short circuit.
• Keep the original packaging in the event the device needs to be
sent in the post.
2.7.
Ergonomics
PLEASE NOTE!
Avoid dazzle, reflections and strong bright-dark contrast in or-
der to protect your eyes
.
The Notebook should never be placed next to a window because this is the bright-
est part of the room in daylight. This brightness can make it more difficult for the
eyes to adjust to the darker display. The Notebook should always be positioned so
that the direction of vision is parallel to the window front.
Setting up the Notebook with your back to the window is incorrect as reflections
from the bright window on the screen will then be unavoidable. A position looking
onto the window is also incorrect as the contrast between the dark screen and the
bright daylight can cause problems for the eyes to adjust and result in problems.
The parallel line of vision should also be maintained in relation to artificial lighting
equipment.
In other words, the same criteria and principles apply where the workspace is illu-
minated with artificial light. Where space restrictions make it impossible to set up
the screen as described, then correct positioning (rotating, tilting) of the Notebook/
screen can prevent dazzling, reflections and excessive bright-dark contrast, etc. In
many cases, an improvement can also be achieved by using slats or vertical blinds
on the windows, partition walls or by changing the artificial lighting equipment.
