Extech Instruments AN340 Manual

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AN340-EU-EN V1.3 4/13

Introduction

ThankyouforselectingtheExtechAN340CMM/CFMAnemometerPsychrometerDatalogger.This

instrumentmeasuresAirVelocity,AirFlow(volume),AirTemperature,RelativeHumidity,WetBulb

Temperature,andDewPointTemperature.

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Themeter’scompactminiimpellerisperfectforductairflowmeasurements.Thesensorprobehas

an18mm(0.7”)diameterand

a1M(39”)telescopingprobewandwithamarkedscale.Duct

temperaturedoesnotaffecttheairflowmeasurementresults.Temperatureandhumiditysensors

arebuiltintothevanesensor.

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Theusercanmanuallystoreandrecall99readingsdirectlyonthemeter’sLCD.Theusercanalso

automaticallylogupto12,000readingswithdateandtimestampandselectablesamplingrate.

ReadingsaretransferredtoaPCusingthesuppliedPCsoftwareandUSBconnectorcable.

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Thismeterisshippedfullytestedandcalibratedand,withproperuse,willprovideyearsofreliable

service.Pleasevisitourwebsite(www.extech.com)to

checkforthelatestversionofthisUser

Guide,ProductUpdates,andCustomerSupport.

CAUTIONS

 Improperuseofthismetercancausedamagetothemeterandpersonalinjury.Readand

understandthisusermanualbeforeoperatingthemeter.

 Inspecttheconditionoftheprobeandthemeterforanydamagebeforeoperatingthe

meter.Repairorreplacedamagebeforeuse.

 Ifthe

equipmentisusedinamannernotspecifiedbythemanufacturer,theprotection

providedbytheequipmentmaybeimpaired.

 Thisdeviceshouldnotbemadeavailabletochildren.Itcontainshazardousobjectsaswell

assmallpartsthatcanbeaccidentallyswallowed.Themeter’sbatteriesandpacking

materialscanalsobedangeroustochildren.

 Intheeventthatthemeteristobeunusedforanextendedperiodoftime,removethe

batteriestoprotectagainstbatteryleakage.

 Expiredordamagedbatteriescanbehazardousifallowedtocomeincontactwithskin.Use

suitablehandprotectioninsuchcases.

 Donotshortcircuitbatteriesorputbatteriesinfire.