Extech Instruments CO100 User manual

UserManual



DesktopIndoorAirQualityMonitor



ModelCO100



2 CO100-en-GB_v2.3 9/16

Introduction

CongratulationsonyourpurchaseofthisExtechMeter.TheCarbonDioxide(CO

)Monitorisdesignedforair

qualitycontrolandhealthcontrolbymeasuringCarbonDioxidelevelinareaswhereCO

couldbeaconcern.

ThemeasuredCO

valueinppm(parts‐per‐million),Temperature,HumidityandTimewillbedisplayedonthe

LCDalongwiththreeCO

2

statusindications:Good(0to800ppm),Normal(800to1200ppm),Poor(>1200ppm).

AnacousticalarmsoundswhentheCO

levelexceedsadefinedlevel.Thismeterisshippedfullytestedand

calibratedand,withproperuse,willprovideyearsofreliableservice.



Operation



1. Powerbutton(rear)

Turnstheunitonoroff.

2. HOLDbutton(rear)

Freezesthecurrentreadinginthedisplay.

3. °C/°Fbutton(rear)

Selects°Cor°F

4. Clockbutton(rear)

Pressandholdthisbuttonfor2secondstoenter

intoclockmode.Pressthe“▲”

or“▼”button

toadjusttheflashingdigits.Presstheclock

buttonagaintostepthroughthesettings

(day:month:year;hour:minute).Pressthe“ESC”buttontoexittheclocksettingmode.

5. Alarmbutton

PresstheAlarmbuttononcetoactivatetheAlarmmode.The

iconappearsonLCDdisplay.If

themeasuredvalueexceedsthedefinedvalue,thealarmwillsoundandthedisplaywillflash.

PressthebuttonagaintoexittheAlarmmode.



AlarmValueSetting

PressandholdtheALARMbuttonfor2secondstoenterintosettingmode.The

iconwill

flash.

Pressthe▲or▼buttontoincreaseordecreasethevalue.

PresstheESCbuttontoexitthesettingmode.

“GOOD‐NORMAL”and“NORMAL‐POOR”ValueSetting

IntheAlarmValueSettingmode,presstheALARMbuttontosettheGOODNORMALthreshold

value.“GOODNORMAL”will

appearinthedisplay.Adjustthevalueasneeded.PresstheALARM

buttonagaintosettheNORMALPOORthresholdvalue.“NORMALPOOR”willappearinthe

display.Adjustthevalueasneeded.

PresstheESCbuttontoexitthemode.

6. ▲button

Pressthisbuttontoincreaseavalue.

Pressthe“ESC”buttontoexitthefunction.

7. ▼button

Pressthisbuttontodecreaseavalue.PresstheESCbuttontoexitthefunction.

8. MAXMINbutton

Pressthebuttononce,the”MAX”iconappearsandtheMaximummeasuredvalueofCO2,

temperatureandhumiditywillbedisplayed

onthescreen.Thedisplaywillbeupdatedonlyifa

highervalueismeasured.Pressthisbuttonagain,the”MIN”iconappearsandtheMinimum

measuredvalueofCO2temperatureandhumiditywillbedisplayedonthescreen.PressESC

buttontoexitthefunction.

3 CO100-en-GB_v2.3 9/16

9. ESCbutton

Pressthisbuttontoexitthecurrentmode.

10. ACadaptorsocket

11. PowerONLED



Backlight

TouchthebuttonareabelowtheLCDandthebacklightwillturnon.Itwillturnoffautomaticallyafter20

secondsofinactivity.Press“ESC”buttonatanytimeto

exitthefunction.



ABC(AutomaticBaselineCalibration)

ABC(AutomaticBaselineCalibration)establishesabaselinecalibrationtoeliminatethezerodriftof

theinfraredsensor.TheABCfunctionisalways“ON”whenthemeteristurnedon.ABCisdesigned

tocalibratethemeterattheminimumCO2readingdetectedduring7daysofcontinuous

monitoring(poweron).It

assumesthattheareabeingtestedreceivesfreshairwithaCO2levelof

approximately400ppmatsomeperiodoftimeduringthesevendays.Itisnotsuitabletousea

desktopCO2meterinclosedareaswithconsistentlyhighCO2levels,24hoursaday.

Maintenance

1. Themetershouldbecleanedwithadampclothandmilddetergentwhennecessary.Donotusesolvents

orabrasives.

2. Storethemeterinanareawithmoderatetemperatureandhumidity.

Specifications



Function Range Resolution Accuracy

CO2 0to9999ppm 1ppm ±75ppmor±5%ofreading

Temperature

23to122°F

(‐5°Cto50°C)

0.1° ±1.5°C/2.7°F

Humidity 0.1to90.0% 0.1% ±5%



Display LCDwithbacklighting

SamplingInterval: 2seconds

OverloadIndication: “‐OL‐”

SensorType CO

2:NDIR(non‐dispersiveinfrared)technology

OperatingConditions‐5°Cto50°C(23oFto122oF)at<90%RH

StorageConditions‐5°Cto50°C(23oFto122oF)at<90%RH

PowerSupply 110V～220VAC,output6.0VDC≥500mA(supplied) 

Dimensions/Weight

 117x102x102mm(4.6x4x4”);204g(7.2oz.)



Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform.

ISO‐9001Certified

Extech Instruments CO100, Extech CO100 User manual

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