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
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
oE(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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Thefaniconremainsflashingevenifthebeepsare
silenced.Theicononlystopsflashingwhenthe
CO2levelfallbelowthelowerlimit(Fig.3)
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SETUP
Thereare4setupmodes:P1‐CO2alarmlevels,
P2‐temperature(CorF),P3‐date/time,and
P4‐factoryreset.Whenyoupress“SET”thesetup
modewillbeshowninthelowerrightcornerof
thescreen.
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Toentersetup,whileinnormalmode,holddown
the“SET“buttonfor3seconds.Toexitsetup,press
“ESC“whileP1.0,P2.0,P3.0,orP4.0isdisplayed.
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P1.1SETCO2GOODLEVEL
Press“SET“todisplayP1.0and”CO2”(Fig.4)onthe
LCD.Press“SET“againtosettheCO2GOODlevel.
ThecurrentsetvaluewillbeblinkingonLCD
(Fig.5).
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Press“▲“toincreaseor“MIN/MAX▼“to
decreasethevalue.TheGOODalarmrangeisfrom
0to700ppmin100ppmincrements.
OncethepreferredCO2levelisselected,
press”SET“tocontinueontoP1.2tosetthe
NORMALlevel(Fig.6)orpress“ESC“toreturnto
P1.0withoutsavingchanges.
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P1.2SETCO2NORMALLEVEL
P1.2istheupperlimitoftheCO2NORMALlevel.
ThecurrentvaluewillflashontheLCD(Fig.6).
Press“▲“toincreaseor“MIN/MAX▼” to
decreasethevalue.TheNORMALlevelcanbeset
between700and1,000ppm.Oncethepreferred
valueisselected,press”SET“tosaveP1.2and
continueontosettheP1.3POOR+ALARM
thresholdsetting(Fig.7)orpress“ESC“toreturnto
P1.0withoutsavingchanges.
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P1.3SETCO2POORLEVEL+ALARM
P1.3isusedtosettheCO2alarmthreshold.The
currentsetvaluewillblinkontheLCD(Fig.7).Press
“▲“toincreaseor“MIN/MAX▼“todecreasethe
value.ThePOORlevelcanbesetbetween1,000to
5,000ppm.Press“SET“toconfirmP1.3and
continuetoP1.4(Fig.8)orpress“ESC“without
savingtoreturntoP1.0
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P1.4SETALARMON/OFF
P1.4isusedtosetalarmonandoff.Whenentering
P1.4,thedefault“On“willbeblinkingontheLCD
(Fig.8).
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Press“▲“or“MIN/MAX▼“toswitchthealarm
to“Off“.Thenpress“SET“toconfirmP1.4and
returntoP1.0(Fig.4)orpress“ESC“toreturnto
P1.0withoutsaving.
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CAUTION:
AlthoughtheTIM10alarmcanbesetupto
5,000ppm,theaccuracyoftheCO2readingisonly
specifiedupto2,000ppm.Alarmvalueshigher
than2,000ppmareforreferenceonlyandshould
notbeusedforpersonalsafety.
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P2.0SETTEMPERATUREUNITS
Holddownthe“SET”buttonforatleast3seconds
toentersetupmode,thenpress“▲“inP1.0mode
toaccessP2.0tosetthetemperaturescale(Fig.9).
Press“SET“againtoshowtemperatureinoCoroF
onthedisplay(Fig.10).Press“▲“or“MIN/MAX
▼“tochangeunits,thenpress“SET“tosaveor
“ESC”toexitwithoutsavingandreturntoP2.0
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P3.0SETREALTIMECLOCK
TheTIM10candisplaytimeineither24houror12
hour(am/pm)format.Holddownthe“SET”
buttonforatleast3secondstoentersetupmode,
thenpress“▲“twicetoaccesstheP3.0real‐time
clock(rtc)setup(Fig.11).
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Tostart,press“SET“todisplayP3.1with“rtc”and
theblinkingyeardigits(Fig.12)inthelowerleft
cornerofthedisplay.Tochangetheyear,press“▲
“or“MIN/MAX▼“tochangethevalue,then
press“SET“tosavetheyearandcontinue,or
press“ESC“toexitwithoutsaving.
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Continuetopress“SET“tochangetothemonth,
andthentheday.Afteryoupress“SET”,press“▲
“or“MIN/MAX▼”whiletheyear,monthorday
valuesareflashingtosetthecorrectdate.Press
“SET“tosaveandmoveforwardtosetthetime,or
press“ESC“toreturntoP3.0modewithoutsaving.
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Tosettheclock,inP3.4modewiththehours
flashing,press“▲“or“MIN/MAX▼“tochange
from12to24hourtimeformat(Fig11).Press
“SET“tosaveandmoveforwardtoP3.5modeto
setthetime,orpress“ESC“toreturntoP3.0
modewithoutsaving.
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WhileinP3.5mode,thecurrenthoursettingwill
blink(Fig.14).Tochangethesetting,press“▲“or
“MIN/MAX▼“toadjustthetime.Press“SET“to
savethesettingorpress“ESC“toreturnto
P3.0.modewithoutsaving.
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P4.0RESET
Holddownthe“SET”buttonforatleast3seconds
toentersetupmode,thenpress“▲“3timesto
accessP4.0modetorevertthemetertothe
factorydefaultstate(Fig.15).
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Press“SET“togotoP4.1mode.“No”willbe
blinkingonthedisplay(Fig.16).Press“▲”
or”MIN/MAX▼”tochangeto“Yes”,thenpress
“SET“tosavethesetting.Press“ESC”toreturnto
P4.0Cwithoutsaving.
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Ifyouchoose“Yes”,themeterisresettothe
followingfactorydefaults:
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3

CO2CALIBRATION
Themeteriscalibratedat400ppm(parts‐
per‐million)CO2concentrationatthefactory.400
ppmiscomparabletofreshoutdoorair.
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Thereare2typesofcalibrationavailable:ABC
(AutomaticBaselineCalibration)ormanual
calibration.Oneortheothershouldbeused
regularlytomaintaingoodaccuracy.
Note:
IfTIM10accuracybecomesaconcernafterlong
useorotherspecialconditions,returnthemeter
tothedealerforcalibration.
CAUTION:
Donotcalibratethemeterwithairorbottledgas
thatcontainsanunknownCO2level.Themeter
willassumeitis400ppmCO2andwillgive
inaccuratemeasurements.
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ABCCalibration
ABC(AutomaticBaselineCalibration)isdesigned
toeliminatethezerodriftovertimeoftheinfrared
CO2sensor.TheABCfunctionisenabledbydefault
fromthefactory.
ForABCtoworkproperly,themetermust
continuouslymonitorCO2levelsforatleast7.5
days(poweron).Duringthattime,itwillrecord
thelowestCO2levelandsetthatasthe400ppm
baselineforfuturereadings.Therefore,itiscritical
whenusingABCcalibrationthatthemeterbe
exposedtofreshairatleastonceevery7.5days.If
thisisnotpossible,thenmanualcalibrationis
recommended.

ManualCalibration
Manualcalibrationrequiresfresh,dryoutdoorair
whenCO2levelsareapproximately400ppm.Do
notcalibrateduringrainydays.Highhumiditywill
affecttheCO2levelsinair.
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Duringmanualcalibration,avoidplacingthemeter
inareascrowdedwithpeopleorcloseto
structuresthatmightgiveoffCO2likeair
ventilationpipes,chimneys,orautomobiles.
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Tomanuallycalibratethemeter,placeitoutdoors,
andturnitonforatleast2minutes.Thenhold
down“SET“,"▲"and“MIN/MAX▼”
simultaneouslymorethan1secondtoenterCO2
calibrationmode(Fig.19).400ppmand
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“CO2”willblinkduringcalibration.
Waitabout30minutesuntiltheblinkingstops.
Calibrationiscompletedautomatically.Tostop
manualcalibration,press“RESET“foratleast1
second.
Note:
Keepthemeterawayfromanyanimals,humansor
plantswhichmightaffecttheCO2concentration
nearbyduringthecalibration.

RHCALIBRATION
ThishumidityaccuracyofthisdesktopCO2meter
canbere‐calibrated.

ContactCO2Meter.comtopurchaseacalibration
kitwithinstructions.

SPECIFICATIONS
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TROUBLESHOOTING
?Cannotpoweron
Checkwhethertheadaptorhaspowerand
thatthemeterisfirmlypluggedin.
?Slowresponse
Checkthattheairflowchannelson
therearofthemeterarenotblocked.
?Nochangeinreadings
Checkwhetherthemeterisinmaximum
orminimummode.Resetfactorydefaults.
?"BAt”andgreenLEDkeepflashing
Theadaptoroutputvoltageistoohighor
toolow.Usethesuppliedadaptorwith
correct5V(+10%)>=0.5Aratings.
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?ErrorCodes
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4

SUPPORT&WARRANTY
Support
Thequickestwaytoobtaintechnicalsupportisvia
email.Pleasesendallsupportenquiresto
[e-mail].Inyouremail,please
includeaclear,concisedefinitionoftheproblem
andanyrelevanttroubleshootinginformationor
stepstakensofar,sowecanduplicatetheproblem
andquicklyrespondtoyourinquiry.

Warranty
Thisunitcomeswitha1YEAR(warrantyperiod)
limitedmanufacturer’swarranty,startingfromthe
datetheunitwasshippedtothebuyer.Duringthis
periodoftime,CO2Meter.comwarrantsour
productstobefreefromdefectsinmaterialsand
workmanshipwhenusedfortheirintended
purposeandagreestofixorreplace(atour
discretion)anypartorproductthatfailsunder
normaluse.
Totakeadvantageofthiswarranty,theproduct
mustbereturnedtoCO2Meter.comatyour
expense.If,afterexamination,wedeterminethe
productisdefective,wewillrepairorreplaceitat
noadditionalcosttoyou.

Thiswarrantydoesnotcoveranyproductsthat
havebeensubjectedtomisuse,neglect,accident,
modificationsorrepairsbyyouorbyathirdparty.
NoemployeeorresellerofCO2Meter.com’s
productsmayalterthiswarrantyverballyorin
writing.

Returns
Iftheproductfailsundernormaluseduringthe
warrantyperiod,anRMA(ReturnMaterial
Authorization)numbermustbeobtainedfrom
CO2Meter.com.Aftertheitemisreceived,
CO2Meter.comwillrepairorreplacetheitemat
ourdiscretion.

ToobtainanRMAnumber,pleasecall
CO2Meter.comat(877)678‐4259TollFreeor(386)
310‐4933.WhenrequestinganRMAnumber,
pleaseprovidethereasonforreturnandoriginal
ordernumber.

Ifwedeterminethattheproductfaileddueto
improperuse(waterdamage,dropping,tampering,
electricaldamageetc.)orabuse,orifitisbeyond
thewarrantyperiod,wewillinformyouofthecost
tofixorreplaceyourdevice.

Ifyouarereturningyourdeviceduetoawarranty
claim(withanRMAnumber)andyoustillhavethe
unitoriginalpackage,pleaseuseittoshipyour
unittous.Pleasemakesuretoincludethe
providedRMAnumberontheoutsideofthebox,
preferablyontheshippinglabel.Makesureyou
securetheunitinsidethepackageproperlyto
preventanydamageduringtransitthatcouldvoid
yourdevice’swarranty.Finally,pleaseshipyour
devicetotheaddressshownunderthe“Contact
Us”sectionbelow.CO2Meterwillnot,underany
circumstances,beresponsibleforyourshipment
expensesandnorefundwillbeissuedforshipping
chargesnecessaryforyoutoshiptheunittous.

Liability
Allliabilitiesunderthisagreementshallbelimited
totheactualcostoftheproductpaidto
CO2Meter.com.Innoeventshallwebeliablefor
anyincidentalorconsequentialdamages,lost


profits,lossoftime,lostsalesorlossordamageto
data,injurytopersonorpersonalpropertyorany
otherindirectdamagesastheresultofuseofour
products.

Contactus:We’reheretohelp!
Ifthetroubleshootingguideabovedoesn’thelp
yousolvingyourproblemorformoreinformation,
pleasecontactususingtheinformationbelow.

[e-mail]
(877)678‐4259Tol lfree(M‐F9‐6:00pmEST)
(386)310‐4933TechnicalSupport/International
calls.

CO2Meter,Inc.
131BusinessCenterDrive,A‐3
OrmondBeach,FL32174USA
www.CO2Meter.com
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Appendix

CO2LEVELSANDGUIDELINES
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Non‐EnforcedReferencelevels
NIOSHrecommendations
250‐350ppm:normaloutdoorambient
concentrations
600ppm:minimalairqualitycomplaints
600‐1000ppm:lessclearlyinterpreted
1000ppm:indicatesinadequateventilation;
complaintssuchasheadaches,
fatigue,andeye/throatirritation
willbemorewidespread.1,000ppm
shouldbeusedasanupperlimit
forindoorlevels.
EPATaiwan:600ppmand1,000ppm
Type1indoorareassuchasdepartment
stores,theaters,restaurants,libraries,
theacceptableCO2concentrationforan
8hoursaverage(TWA)is1,000ppm.
Type2indoorareaswithspecialrequirements
forgoodairqualitysuchasschools,
hospitals,anddaycarecenters,the
suggestedCO2levelis600ppm.
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RegulatoryExposurelimit
ASHRAEStandard62‐1989:1,000ppm
CO2concentrationinoccupiedbuildingshould
notexceed1,000ppm.
Buildingbulletin101(Bb101):1,500ppm
UKstandardsforschoolsstatethatCO2levels
overaday(i.e.9amto3.30pm)shouldnotexceed
1,500ppm.
OSHA:5000ppm
Timeweightedaverageoveran8‐hourwork
dayshouldnotexceed5,000ppm.
Germany,Japan,Australia,UK:5,000ppm
Occupationalexposurelimitis5,000ppmoveran8
hourworkday.