Extech Instruments AN300 Manuel utilisateur

USERGUIDE

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LargeVaneCFM/CMM

Thermo‐Anemometer



ModelAN300



99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

AN300‐EU‐ENv1.11/13

Introduction

CongratulationsonyourpurchaseoftheExtechAN300VaneAirflowAnemometer.

ThisinstrumentmeasuresAirVelocity,AirFlow(volume),andAirTemperature.Thelarge,easy‐

to‐readbacklitLCDincludesprimary(upper)andsecondary(lower)displaysplusnumerous

statusindicators.Theoptionalconeandfunnelairflowadaptorsallowforquickvolume

measurements.Thismeterisshippedfullytestedandcalibratedand,withproperuse,will

provideyearsofreliableservice.PleasevisittheExtechInstrumentswebsite(www.extech.com)

tocheckforthelatestversionofthisUserGuide,ProductUpdates,andCustomerSupport.

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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material

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.

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AN300‐EU‐ENv1.11/13

Descriptions

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MeterDescription(front)

1. ToplineLCDdisplayreading

2. BottomlineLCDdisplayreading

3. U/modeAVGanduparrowbutton

4. L/modeanddownarrowbutton

5. ON‐OFF(Power)andSETbutton

6. HOLD,MAX‐MIN,andleftarrow(Enter)button

7. Unitofmeasuresymbolforlowerdisplayrow

8. Unitofmeasuresymbolforupperdisplayrow

9. AirVelocityVane

MeterDescription(rear)

10. Airtemperaturesensor

11. Batterycompartment

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AN300‐EU‐ENv1.11/13

SET

HOLD

MAX/MIN

U/mode

AVG

▲

L/mode

▼

U/mode

AVG

▲

BriefKeypadDescription



PressmomentarilytoswitchthemeterONorOFF.Pressandholdthisbuttonfor2

secondstoenterorexittheSetupmode(refertoSETUPmodesectionfordetails).

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oPressmomentarilytofreezethedisplayedreading(HOLDiconswitchesON);press

againmomentarilytoexittheHOLDmode(HOLDiconswitchesOFF)

oPressandholdfor2secondstodisplaytheMIN(minimum)reading;pressandhold

againtodisplaytheMAX(maximum)reading;Pressandholdathirdtimetoexit

oThisbuttonisalsousedintheAVERAGEmode(forrecordingreadingsoneatatime

orfora‘timed’recordingsession)andintheSETUPmode(forconfiguringthe

meter).PleasereviewtheAVERAGEandSETUPmodesectionsfordetails



Pressandholdfor2secondstoaccesstheMulti‐PointAverageandTimedAverage

modes(theAVGiconswitchesON).Detailedinstructionsforthesemodesareprovided

laterinthisguide).IntheSetupmodepresstoselectacategoryortoincreaseavalue

(refertoSETUPmodesection)



Presstotogglethelowerdisplaybetweenairtemperatureandairvolumereadings;

AlsousedintheMulti‐PointAverage,TimedAverage,andSetupmodes;refertothe

AVERAGEandSETUPmodessectionslaterinthisguide



 

+WiththemeterswitchedOFF,pressandholdthesetwobuttonstodisable

AutoPowerOFF.DetailedAUTOPOWEROFF(Sleepmode)instructionsare

providedlaterinthisguide

AN300‐EU‐ENv1.11/13

DisplayDescription

1. LowerDisplaydigits(airvolume,airtemperature,timer,ormenuparameterdisplays)

2. UpperDisplaydigits(airvelocityormenudisplayparameters)

3. OptionalConeandFunnelattachmenticons

4. Unitsofmeasureforductareaprogramming

5. Vaneindicator(flashesverybrieflyonpowerup)

6. DisplayHOLDicon

7. MAXmodeicon

8. MINmodeicon

9. Recordingicon

10. ElapsedTimericon

11. AVGmodeicon

12. Batterystatusicon

13. Unitofmeasureicons*

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*Fulllistshown.Availableunitsofmeasureiconsvarybymodel.



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AN300‐EU‐ENv1.11/13

Operation

AirVelocity,Volume,andTemperatureMeasurements

1. SwitchthemeterONbypressingthePOWER buttonmomentarily.PressthePOWER

buttonagaintoswitchthemeterOFF.

2. Notethatthemeterwillautomaticallyenterthesleepmodeafter20minutesofinactivity.

Todisablethisfeature:withthemeterOFF,pressandholdthePOWERandtheU/mode

buttonsfor2seconds.TheLCDwilldisplay'n'asthemeterswitchesON.Nowthesleep

modeisdisabledandtheusermustpressthePOWERbuttonmomentarilytoswitchthe

meterOFF.

3. WhenthemeterisON,theairvelocityreadingisdisplayedontheupperdisplaydigitsin

meterspersecond(m/s)orfeetperminute(fpm).ThelowerdisplayareacanshowAir

Volume(CMM/CFM)orAirTemperature(°C/°F)readings,usetheL/modebuttontotoggle

betweenthetwo.Notethatanareameasurementmustbeprogrammedintothemeter(in

theSETUPmode)beforeaccuratevolumemeasurementscanbemade.

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4. Placethemeter’svaneintheairstream.Theairmustenterthevanefromtherearofthe

meter.Thetemperaturesensorislocatedatthecenterofthevaneontherearofthemeter.

5. ReadthemeasurementdataontheLCD.

6. TochangebetweenImperialandMetricunitsofmeasurerefertotheSETUPmodesection.

7. TomeasuretheAirVolumeofaduct,firstmeasuretheduct’sarea(seetheAppendixfor

areacalculations)andthenentertheareavalueinthemeter’sSETUPmodeinin2orcm2.

Aftertheareavaluehasbeenentered,presstheL/modebuttontoswitchthelowerdisplay

fromAirTemperaturetoAirVolume.Placethemeterintheairstreamtomeasurevolume.

8. Optionally,measureAirVolumewithanairflowconeadaptorbyfirstattachingoneofthe

adaptorstothemeter(theoptionalconeadaptorkitincludesaroundandasquarecone;kit

partnumberAN300‐C).Themeterwillautomaticallyrecognizetheadaptorandthe‘INSERT

ConeShape’promptwillappearontheLCD(theadaptoriconwillalsoappear).Selectround

orsquareusingthemeter’skeypad.Notethat,regardlessoftheAREAsettingintheSETUP

mode,themeterwilldefaulttothedimensionsoftheattachment(Square:356x346mm

[13.6x13.6”);Round:210mm[8.3”]diameter).NOTE:Ensurethattheairflowadaptoriswell

mountedandlockedbeforetakingmeasurements.

LCDbacklight

PresstheU/modebuttontoswitchONtheLCDbacklight.Thebacklightwillautomaticallyswitch

OFFafterapproximately10secondstoconservebatterypower.Notethatthebacklighting

switchesONautomaticallywhenthemeterisswitchedONbytheuser.

AN300‐EU‐ENv1.11/13

DataHoldMode

1. PresstheHOLDbuttonfromthenormaloperatingmodetofreezethecurrentmeasurement.

2. The‘HOLD’iconwillappearatthetopoftheLCDdisplay.

3. PressHOLDagaintoreturntonormaloperation.The‘HOLD’iconwillswitchOFFandthe

meterwillreturntodisplayingreadingsinrealtime.

MAX/MINMode

TheMAX‐MINfeaturerecordsthehighest(MAX)andlowest(MIN)readingscapturedsincethe

meterwasswitchedON.

1. PressandholdtheMAX/MINbuttonfor2secondstobegindisplayingthelowest(minimum)

readingsencounteredsincethismodewasaccessed.The‘MIN’iconwillappearatthetopof

theLCDdisplayindicatingthatthereadingsshownarethelowestmeasured.

2. PressandholdtheMAX/MINbuttonagainfor2secondstodisplaythemaximumreadings

encountered.The‘MAX’iconwillappearontheLCD.

3. Pressandholdthisbuttonagainfor2secondstoreturntothenormalmodeofoperation

(the‘MIN’and‘MAX’iconsshouldswitchOFF).

4. WhileviewingtheMAXorMINdata,usetheL/modebuttontoswitchthedisplaysothatthe

AirVolumeMINandMAXreadingscanbeviewedalso.

5. PressandholdMAX/MINfor2secondstoreturntothenormaloperationmode.

Multi‐PointAverageMode

1. FromthenormaloperatingmodepresstheU/modebuttonfor2secondstoenterMulti‐

PointAveragemode(theAVGdisplayiconandtheassociatedblackdot•willswitchON).

2. PresstheHOLDbuttonmomentarilytorecordonereading.Theupperdisplaydigitswill

showthereading’smemorylocationnumberandthelowerdisplaywillshowthemeasured

value.PresstheHOLDbuttonagaintotakeandstoreanotherreading;thememorylocation

numberwillincrementbyoneandthecurrentreadingwillbestoredinthisnewmemory

location.

3. PressU/modemomentarilytoseethemulti‐pointmean(average)forallofthereadings

recordedduringthesession(the'•AVG'displayiconwillflashduringthisprocess).

4. PressL/modetoviewtheaveragereadingfortheotheravailableparameters.

5. PressU/modemomentarilytoreturntothenormaloperatingmode.

TimedAverageMode

1. Fromthenormaloperatingmode,pressandholdtheU/modebuttonfor2secondstoenter

theMulti‐PointAveragemodefirstandthenpressU/modeonemoretimemomentarilyto

entertheTimedAverageMode(theAVGandtheelapsedtimericonswillswitchON).

2. PressHOLDtobeginrecording.Theelapsedtimerstarts(asshownontheupperdisplay

digits)andtheclockiconflashesonandoff.

3. PressU/modetostoptheclockandtocalculatethetimedaverage.TheupperLCDwill

displaytheelapsedtimeandthelowerLCDwillshowtheaveragedreadings.TheLCDwill

flashthe'AVG'andtheelapsedtimericons.

4. PressL/modetoviewtheaverageforotheravailablemeasurements.

5. PressU/modetoreturntothenormaloperatingmode.

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AN300‐EU‐ENv1.11/13

SetupMode

EnteringSetupMode

PressandholdtheSETbuttonfor2secondstoenterSetupmode.Twooptionsareavailable:

P1.0:UnitandP2.0:AREA.

Usetheup/downbuttonstotogglebetweenP1.0UNITandP2.0AREAoptions.

P1.0:UnitSelection

1. Onceinsetupmode,attheP1.0UNITdisplay,momentarilypresstheHOLDbuttontoenter

theP1.0UNITmenu.

2. Usethedown/uparrowbuttonstoswitchbetweenmetricandimperialunits.Theavailable

unitsare:airvelocity(m/s,fpm),temperature(C,F),airvolume(CMM,CFM),andareasize

(cm²,inch²).

3. PressHOLDmomentarilytoreturntotheP1.0display.

4. PresseitherarrowbuttontomovetotheP2.0AREAoptionandfollowthestepsbelow.

P2.0:AreaSizeSelection

1. Insetupmode,fromtheP2.0AREAdisplay,pressHOLDtoentertheAREAsettingmenu.The

LCDwillshow‘99999’inthelowerdisplaywiththeleft‐mostdigitflashing.

2. Usetheuparrowbuttonchangetheflashingdigit(from0through9).

3. Usethedownarrowbuttontomovetothenextdigit.Usetheuparrowbuttonagainto

changetheflashingdigit.ContinueinthiswayuntilthedesiredAREAvalueisdisplayed.

4. PresstheHoldbuttonagainmomentarilytostorethevalueandtoreturntotheP2.0display.

5. PressandholdthePOWERSETbuttonfor2secondstoreturntothenormaloperating

mode.

AN300‐EU‐ENv1.11/13

BatteryReplacement

Whenthelowbatteryicon appearsontheLCD,thefour(4)1.5V‘AAA’batteriesmustbe

replaced.

1. Opentherearbatterycompartmentbycarefullypullingdownonthecompartment’slatch.

2. Thebatterycompartmentcovershouldbecompletelyremovedbeforeproceeding.

3. Replacethefour(4)1.5V‘AAA’batteriesensuringproperpolarity.

4. Closethebatterycompartmentbeforeattemptingtousethemeter.



EUusersarelegallyboundbytheBatteryOrdinancetoreturnusedbatteriesto

communitycollectionpointsorwhereverbatteries/accumulatorsaresold.

Disposalinhouseholdtrashorrefuseisprohibited.

Disposal:Followthevalidlegalstipulationsinrespectofthedisposalofthedeviceat

theendofitslifecycle



OtherBatterySafetyReminders

oNeverdisposeofbatteriesinafire.Batteriesmayexplodeorleak.

oNevermixbatterytypes.Alwaysinstallnewbatteriesofthesametype.

AN300‐EU‐ENv1.11/13

Specifications

AirVelocityRangeResolutionAccuracy

m/s(meterspersecond)0.2‐30m/s0.01m/s±(1.5%rdg+0.3m/s)

fpm(feetperminute)40–5900fpm1fpm±(1.5%rdg+59fpm)

AirFlow(Volume)RangeResolutionAreaRange

CMM(cubicmeters/min) 0‐99999m3/min0.1upto9999.9

then1.00to99999cm2

CFM(cubicft/min)0‐99999ft3/min0.1upto9999.9

then1.00to99999in2

AirTemperatureRangeResolutionAccuracy

oC/F

‐20to60oC

(‐4to140oF)0.1oC/F

±0.6°C(‐20to50°C)

±1.2°C(51to60°C)

±1.1°F(‐5to122°F)

±2.2°F(123to140°F)

CircuitCustomLSImicroprocessor

DisplayDualfunction13mm(0.5")4‐digitLCD

Samplingrate1readingpersecondapprox.

Airvelocity/flowsensor Conventionalangledvanearmswithlow‐frictionballbearing

TemperaturesensorNTC‐typeprecisionthermistor

AutomaticPoweroffAutoshutoffafter20minutestopreservebatterylife(sleepmode)

OperatingTemperature0°Cto50°C(32°Fto122°F)

StorageTemperature‐10to50oC(14to122oF)

OperatingHumidity<80%RH

StorageHumidity<90%RH

OperatingAltitude2000meters(7000ft)maximum

BatteryPowerFour(4)‘AAA’1.5Vbatteries

BatteryLife>40hours

Batteryconsumption8.3mADC(approx.)

Weight725g(1.6lbs.)includingbatteryandprobe

DimensionsMaininstrument:269x106x51mm(10.6x4.2x2”)

OptionalAirFlowAdaptors:

Roundcone:210mm(8.3”)Diameter

Square:346x346mm(13.6x13.6”)



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