Co2meter AZ-0004 User Manual

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OPERATIONMANUAL
DesktopCO2,Temperature&
RelativeHumidityMonitor 
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CO2METER.COM
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INTRODUCTION
ThankyouforpurchasingthisdesktopCO2
monitor.Itmeasurescarbondioxidelevels,air
temperatureandhumidity.Thismakesitidealfor
indoorairquality(IAQ)diagnosisandHVACsystem
performanceverification.
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Poorindoorairqualityisconsideredunhealthy.It
canleadtodrowsiness,inabilitytoconcentrate,
andevenillness
(forexample,SickBuilding 
Syndrome).
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IAQmonitoringofCO2levelsiswidelyusedin
publicareassuchasoffices,classrooms,factories,
hospitalsandhotels.Itisalsorecommendedfor
industrialhygieneinsomecountries.(See
appendix).
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ProductFeatures:
●LargedisplayshowsCO2level,temperature,
humidity,dateandtime
●
15degreetiltanglemakesthedisplayeasy
toseeandread
●Indoorairqualitylevelindication:
Good,Normal,andPoor
●StableNDIRsensorforCO2detection
●VisibleandaudibleCO2warningalarm
●ABC(AutomaticBaselineCalibration)
ormanualCO2calibration
●MaximumorminimumCO2levelrecall
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function
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MATERIALSSUPPLIED
Thispackagecontains:
●Meter
●PowerSupply(5V+/‐10%,>=0.5A)
●Manual
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POWERSUPPLY
ThemeterispoweredbyanACadaptor
(5V/0.5Aoutput).
LCDDISPLAY
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Symbols
ppmCO2levelinparts‐per‐million
GOODCO2isingoodlevel
NORMALCO2isinnormallevel
POORCO2isinpoorlevel 
AirTemp. Airtemperature
Humidity%Unitofairrelativehumidity
o
E(C/F)Celsius/Fahrenheitoftemp.
MAX/MINMaximum/Minimumreadings
CO2alarmicon
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NOTE:
TWA/STEL/VENT.R/cfm/p/lps%icons
arenotusedforthismodel.
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KEYPAD
SET‐Entersetupmode
‐Saveandfinishsettings
ESC‐Exitsetuppage/mode
‐Ter mi nate CO2calibration
RESET‐ClearMAX/MINvalues
▲‐Selectmodeorincreasevalueinsetup
MIN/MAX▼ ‐ActivateMAX,MINfunction
‐Selectmodeordecreasevalue
duringsetup
SET+▲+MIN/MAX▼ ‐CO2calibrationmode
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OPERATION
POWERON/OFF
Plugthewalladaptorintoanappropriate
receptacle.Themeterwillturnonautomatically
afterashortbeep.ThelitLEDindicatesfullpower.
Ifthevoltageistoohighorlow,“bAt”willdisplay
ontheLCDandtheLEDwillflash.Pleaseseepage
14fortrouble
shooting.
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Duringnormaloperation,theLCDwilldisplaythe
currentCO2levelinppm,airqualitylevel,air
temperature,humidity,andthecurrentdateand
time(Fig.1).
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TAKINGMEASUREMENTS
Themeterstartstakingmeasurements
immediatelyafteritisturnedonandupdatesthe
readingseverysecond.Intheevent
theoperating
environmentisquicklychanged(forexample,from
hightolowtemperature),itwilltake
approximately2minutesfortheCO2and
temperaturetoadjustand10minutesforhumidity
tostabilize.
NOTE:Donotholdthemeterclosetoyourfaceas
yourbreathwillaffecttheCO2level.
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MIN/MAX
Whilethemeterispoweredon,pressthe
“MIN/MAX▼“buttontoseetheminimumand
maximumCO2level,temperature,andhumidityin
turn.Eachpressof“MIN/MAX▼“willdisplaythe
MINandMAXvaluesinorder,thenreturnthe
meter
tonormalmode(Fig.2).
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Duringnormaloperationorwhileviewing
MIN/MAXlevels,pressandholdthe“RESET“key
formorethan1secondtoclearthestored
minimumandmaximumvalues.
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HIGHCO2ALARM
ALARM
Themeterfeaturesanaudiblealarmthatwarns
theuserwhentheCO2concentrationexceedsthe
programmedlimit.Userscanset2limits:aCO2
levelthatrequiresventilation(SeeP1.
3
insetupfor
settingalarmlimits)andalowerCO2levelwhen
ventilationisnolongerrequired(SeeP1.
2
insetup
CO2normallimit).
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Duringhighalarm,themeteremitsan80dBbeep
anddisplaysthefaniconontheLCD.Thealarm
canbetemporarilystoppedbypressinganybutton,
oritwillautomaticallystopwhentheCO2level
fallsbelowthelowerlimit.
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Ifthealarmis
temporarilysilenced,itwillresume
iftheCO2levelfallbelowthelowerlimitthenrises
abovetheupperlimitagain,orifthe
“RESET“buttonispressedtore‐activatethealarm.
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Co2meter AZ-0004 Specifications

General

Resolution	1 ppm
Display	LCD
Operating Temperature	0°C to 50°C
Operating Humidity	0% to 95% RH (non-condensing)
Sensor Type	Non-Dispersive Infrared (NDIR)