User Manual

5 CO220-en-GB_V1.3 07/13
CO
2
DISPLAYPAGES
PresstheCO
2
buttontochange the CO
2
displaypage on the top‐tierLCDarea.The pagesare
shownbelowforCO
2
,Max‐Min,TWA,STEL,IPS%andcfm/p.
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TIMEWEIGHTEDAVERAGE(TWA)
TWAisTimeWeightedAverage(8hours);themeterupdatesthereadingevery60seconds.If
themeterhasbeenpoweredonforlessthan8hours,theTWAvaluewillbetheweighted
averageofreadingstakensincetheunitwaspoweredON.
SHORT‐TERMEXPOSURELIMIT(STEL)
STEListheShort‐TermExposureLimit(15minutesweightedaverage);themeterupdates
readingsevery60seconds.Ifthemeterhasbeenpoweredonforlessthan15minutes,theSTEL
valueshowstheweightedaverageofreadingtakensincetheunitwaspoweredON.
LPS%
LPS%representsLiterspersecondperperson.
CFM/P
CFM/PrepresentsCubicFeetperMinuteperperson.