Extech Instruments AN310-NIST Manual de usuario

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



LargeVaneCFM/CMM

Anemometer/Psychrometer





ModelAN310

AN310-en-GB_V1.5 11/15

Introduction

CongratulationsonyourpurchaseoftheExtechAN310VaneAirflowAnemometerPsychrometer.

ThisinstrumentmeasuresAirVelocity,AirFlow(volume),AirTemperature,RelativeHumidity,Wet

BulbTemperature,andDewPointTemperature.Thelarge,easy‐to‐readbacklitLCDincludes

primaryandsecondarydisplaysplusnumerousstatusindicators.Theoptionalroundandsquare

airflowconeallowsforquickvolumemeasurements.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

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.

AN310-en-GB_V1.5 11/15

MeterDescription

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andhumiditysensors

11. Batterycompartment



AN310-en-GB_V1.5 11/15

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).



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momentarilytotoggleRHandAirVelocityreadings.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later

inthisguide)



Presstotogglethelowerdisplaybetweenairtemperature,airvolume,wetbulb

temperature,anddewpointtemperature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



AN310-en-GB_V1.5 11/15

DisplayLayout

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

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

3. OptionalConeorFunnelattachmenticon

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*



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

AN310-en-GB_V1.5 11/15

Operation

AirVelocityandAirVolume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it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upperdisplaycanindicate

airvelocityorrelativehumidity(usetheU/modebutton

totoggle).Thelowerdisplaydigitscanindicateairflow,

dewpointtemperature,wetbulbtemperature,orair

temperature(usetheL/modebuttontoscroll).

4. Placethesensorintheairstream.Theairmustenter

thevanefromtherearofthemeter.TheAir

TemperatureandRelativehumiditysensorsarelocatedatthecenterofthevaneontherear

ofthemeter.

5. ReadthemeasurementdataontheLCD.Airvelocityreadingsareindicatedinmetersper

second(m/s)orfeetperminute(fpm).Temperaturereadings(air,dewpoint,orwetbulb)

areindicatedin°C/°F.RelativeHumidityisindicatedin%.Airflow(volume)isindicatedin

CFM(cubicfeetperminute)orCMM(cubicmetersperminute).UsetheL/modebutton(for

lowerdisplay)andtheU/modebutton(forupperdisplay)toscrollthroughthedisplayed

readingoptions.

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,usetheL/modebuttontoscrolltotheairvolume

display(CMM/CFM)onthelowerdigits.Placethemeterinairstreamtomeasurevolume.

8. Optional:measureAirVolumewithanairflowConeorSquare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thattheadaptoris

attachedtothemeterandaconeiconwillappearonthedisplay.

Note:regardlessoftheAREAsettingintheSETUPmode,themeterwilldefaulttothe

dimensionsofthevaneopening.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.

AN310-en-GB_V1.5 11/15

RelativeHumidity,WetBulb,andDewPointMeasurements

Therelativehumiditysensorisbuiltintothecenterofthevane(rearofmeter)andcanbeusedto

measurerelativehumidity,dewpointandwetbulbtemperatures.

1. PressU/modetoswitchtothe%RHdisplayifnecessary.Themeasuredhumidityreadings

willbedisplayedontheupperLCDdigits.

2. UsetheL/modebuttontoscrollthroughairtemperature,dewpointtemperature,wetbulb

temperature,andairvolumereadings.

3. Tomeasurethehumidityusinganoffsetreferencevalue,pleaseaccesstheSetupmodeand

inputtheoffsetvalueasdescribedintheSetupmodesection.TheLCDwilldisplaythe

measuredvalueminustheoffsetvalueoncetheoffsetisprogrammedintheSetupmode.

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

MAX‐MINmodewasaccessed.

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.Themetercanstoreupto19,999pointsinmemory.

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.

AN310-en-GB_V1.5 11/15

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.Thelongestamountoftimethemetercan

operateinTimedAverageModeis19,999seconds.

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.



SetupMode

EnteringSetupMode

PressandholdthePOWER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eitherarrowbutton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(entersquareinchesorsquarecentimeters)

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first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eitherarrowbuttontomovetotheP3.0RHOFFSEToptionandfollowthestepsbelow.

P3.0:RelativeHumidity(RH)OffsetSelection

1. WheninsetupmodeP3.0pressHOLDtoentertheRHoffsetsetting.TheLCDwillshow0.0

RHintheupperdisplay.

2. PressU/modetoincreaseoffsetvalueandL/modetodecreaseoffset.

3. PresHOLDoncemoretoreturntoP3.0.

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

mode.

AN310-en-GB_V1.5 11/15

BatteryReplacement

WhenappearsontheLCD,theAAAbatteriesmustbereplaced.Thebatterycoverislocated

onthebackofthemeter.

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.



Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.

Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriate

collectionsites,theretailstorewherethebatterieswerepurchased,orwherever

batteriesaresold.

Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuseris

obligatedtotakeend‐of‐lifedevicestoadesignatedcollectionpointforthedisposal

ofelectricalandelectronicequipment.



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.

AN310-en-GB_V1.5 11/15

Specifications

AirVelocityRangesResolutionAccuracy

m/s(meterspersec)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)

RelativeHumidityRangeResolutionAccuracy

RH0.1%‐99.9%RH0.1RH±3%RH(10‐90%RH)

±5%RH(<10%or>90%)

AirFlowRanges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

TemperatureRangesResolutionAccuracy

oC/oF

AirandWetBulb:

‐20to60oC(‐4to140oF)

DewPoint:

‐5to60oC(23to140oF)

0.1oC/oF

±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

SensorsNTC‐typeprecisionthermistors

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”)

Vaneinnerdiameter:100mm/3.94inches

OptionalAirFlowAdaptors:

Round:210mm(8.3”)Diameter

Square:346x346mm(13.6x13.6”)

Este manual sirve para los siguientes modelos

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