Specifications

3023 Operation and Maintenance Manual EDL Displays, Inc. February, 2006

• Adjust the monitor height so that the top of the screen is at or

slightly below eye level. Your eyes should look slightly

downward when viewing the middle of the screen.

• Position your monitor no closer than 16 inches and no further

away than 228 inches from your eyes. The optimal distance is

24 inches for 3023.

• Rest your eyes periodically by focusing on an object at least 20

feat away. Blink often.

• Position the monitor at a 90ᑻ angle to windows and other light

sources to minimize glare and reflections. Adjust the monitor tilt

so that ceiling lights do not reflect on your screen.

• If reflected light makes it hard for you to see your screen, use an

anti-glare filter.

• Clean the LCD monitor surface with a lint-free, non-abrasive

cloth. Avoid using any cleaning solution or glass cleaner!

• 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 minimize

turning your head while you are typing.

• Avoid displaying fixed patterns on the monitor for long periods of

time to avoid image persistence (after-image effects).

• Get regular eye checkups.

Ergonomics

• 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.

• Do not use primary color blue on a dark background, as it is

difficult to see and may produce eye fatigue to insufficient

contrast.

Warning

To prevent fire or shock hazards, do not expose this unit to rain

or moisture. Also, do not use this unit’s polarized plug with an

extension cord receptacle or other outlets unless the prongs

can be fully inserted.

Refrain from opening the cabinet, as there are high voltage

components inside. Refer servicing to qualified service