Extech Instruments AN300 User manual

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LargeVaneCFM/CMM
Thermo‐Anemometer
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ModelAN300
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99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

AN300‐EU‐ENv1.11/13
2
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
3
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
4
SET
HOLD
MAX/MIN
U/mode
AVG
▲
L/mode
▼
U/mode
AVG
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BriefKeypadDescription
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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
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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)
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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
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+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
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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
6
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
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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.


AN300‐EU‐ENv1.11/13
8
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
9
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
10
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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