Co2meter AZ-0004 - CO2 Calibration; Calibration Types; ABC Calibration; Manual Calibration

3

CO2CALIBRATION
Themeteriscalibratedat400ppm(parts‐
per‐million)CO2concentrationatthefactory .400
ppmiscomparabl etofreshoutdoorair.

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.

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.

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.

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





“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















































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.


?ErrorCodes










































