Dell S2721DGF - Ergonomics, Handling, and Maintenance

22 | About your monitor
Ergonomics
CAUTION: Improper or prolonged usage of keyboard may result in injury.
CAUTION: Viewing the monitor screen for extended periods of time may
result in eye strain.
Forcomfortandefficiency,observethefollowingguidelineswhensettingupandusing
yourcomputerworkstation:
• Positionyourcomputersothatthemonitorandkeyboardaredirectlyinfrontof
youasyouwork.Specialshelvesarecommerciallyavailabletohelpyoucorrectly
positionyourkeyboard.
• Toreducetheriskofeyestrainandneck/arm/back/shoulderpainfromusingthe
monitorforlongperiodsoftime,wesuggestyouto:
1. Setthescreenabout20to28in.(50-70cm)fromyoureyes.
2. Blinkfrequentlytomoistenorrewetyoureyeswhenworkingwiththemonitor.
3. Takeregularandfrequentbreaksfor20minuteseverytwohours.
4. Lookawayfromyourmonitorandgazeatadistantobjectat20feetawayfor
atleast20secondsduringthebreaks.
5. Performstretchestorelievetensionintheneck/arm/back/shouldersduring
thebreaks.
• Makesurethatthemonitorscreenisateyelevelorslightlylowerwhenyouare
sittinginfrontofthemonitor.
• Adjustthetiltofthemonitor,itscontrast,andbrightnesssettings.
• Adjusttheambientlightingaroundyou(suchasoverheadlights,desklamps,and
thecurtainsorblindsonnearbywindows)tominimizereflectionsandglareonthe
monitorscreen.
• Useachairthatprovidesgoodlower-backsupport.
• Keepyourforearmshorizontalwithyourwristsinaneutral,comfortableposition
whileusingthekeyboardormouse.
• Alwaysleavespacetorestyourhandswhileusingthekeyboardormouse.
• Letyourupperarmsrestnaturallyonbothsides.
• Ensurethatyourfeetarerestingflatonthefloor.
• Whensitting,makesurethattheweightofyourlegsisonyourfeetandnot
onthefrontportionofyourseat.Adjustyourchair’sheightoruseafootrestif
necessarytomaintainaproperposture.
• Varyyourworkactivities.Trytoorganizeyourworksothatyoudonothavetosit
andworkforextendedperiodsoftime.Trytostandorgetupandwalkaroundat
regularintervals.