Silicon Graphics C220, Руководство пользователя, Страница: 13 / 17

English-8
• Clean your monitor
A special coating is provided on the glass (CRT) surface of this monitor to reduce a reflection and static electricity on the
glass surface.
Due to the delicate coating on the glass surface, use a lint-free, nonabrasive cloth (cotton or equivalent) and a non-
alcohol, neutral, nonabrasive cleaning solution to minimise dust. If the screen requires more than a light cleaning, apply
water or soften neutral detergent with much water directly to a soft cloth and use it upon wringing water, to clean the glass
surface.
CAUTION: The following agents will cause damage to the CRT when cleaning the glass surface: Benzene, thinner, acid/
alkaline detergent, alcohol deter-gent, detergent with abrasive powder, detergent with antistatic agent, detergent for
cleaning.
• Adjust the monitor’s brightness and contrast controls to enhance readability.
• Use a document holder placed close to the screen.
• Position whatever you are looking at most of the time (the screen or reference material) directly in front of you to minimise
turning your head while you are typing.
• Get regular eye checkups.
Ergonomics
To realise the maximum ergonomics benefits,we recommend the following:
•
Adjust the Brightness until the background raster disappears
• Do not position the Contrast control to its maximum setting
• Use the preset Size and Position controls with standard signals
• Use the preset Color Setting and Sides Left/Right controls
• Use non-interlaced signals with a vertical refresh rate between 75-160Hz
• Do not use primary color blue on a dark background, as it is difficult to see and may produce eye fatigue due to insufficient
contrast
Recommended use (continued)