Extech Instruments AN25 User manual

User Manual - Model AN25 - Hygro Thermo-Anemometer

AN25-EU-EN V1.3 6/13

SupportLines:U.S.(877)439‐8324;International:+1(603)324‐7800

TechnicalSupport:Option3;E‐mail:[email protected]

Repair&Returns:Option4;E‐mail:[email protected]

Productspecificationsaresubjecttochangewithoutnotice

Pleasevisitourwebsiteforthemostup‐to‐dateinformation

www.extech.com

FLIRCommercialSystems,Inc.,9TownsendWest,Nashua,NH03063USA

ISO9001Certified

Introduction

ThankyouforselectingtheExtechModelAN25HygroThermo‐

Anemometer.Pleasevisitourwebsite(www.extech.com)tocheckfor

thelatestversionofthisUserGuideortocontactCustomerCare.

Operation

SwitchingtheMeterON/OFF

 PressthePOWERbuttontoswitchthemeterON

 PressandholdPOWERforapprox.3secondstoswitchOFF

 Themeter’sAutoPowerOFFfeat ureturnsthemeterOFFafter15

minutesofinactivity

ChangingtheAirVelocityUnits

Withthemeterin

airflowmeasurementmodepressHOLDforapprox.3

secondstochangeairflowunitsfromm/s,KMH,M/H,FPM,BFT,KNT

andthenbacktom/s.SeeSpecificationsforicondefinitions.

ChangeModesandTemperatureunits

 PressMODEbuttontoselectthedesiredmode:WNCL(wind‐chill),

TEMP,

RH,HI(heatindex),DP(dewpoint),WB(wetbulb),WBGT(wet

bulbglobe),andbacktom/s.

 FromanytemperaturemodepresstheHOLDbuttontochange

temperatureunits(°C/°F).

MAX/AVGMode

 WiththemeterONpressthePOWERbutton.TheMA Xicon will

displayon

theLCDwiththehighest(maximum)reading.

 PressPOWERagain.TheAVG(average)iconwilldisplayontheLCD.

PressthePOWERbuttontostepthroughtheaveragingtime

selections(5sec,10sec,andto13sec).Afterselectingtheaveraging

timethemeterwillbeginaveragingreadings.

 Toexit

theMAX/AVGmode,repeatedlypressthePOWERbuttonuntil

MAXandAVGiconsswitchOFF.

DataHold

 PresstheHOLDbuttontofreezethedisplayedreading.TheHOLDicon

willappearonthedisplay.

 PressHOLDbuttonagaintoreturntonormaloperatingmode.

AutoPowerOFF

 The

meterwillpowerOFFafterabout15minutesofinactivity.

 TodisableAutoPowerOFF:WiththemeterswitchedOFF,pressthe

HOLDandPOWERbuttonsuntilthemeterswitchesON.

 The'n'iconwillbedisplayedontheLCDandthemeterwillreturnto

normaloperating

mode.

 NowthemeterwillnotswitchOFFuntiltheusermanuallyswitchesit

OFF.Notethatonthenextcycleofpower,themeterwillreverttothe

AutoPowerOFFmode.

ErrorMessages

Er1:SensorError(replaceunit);Er2:Measurementoutofrange

ImportantNote:Ifthemeter

isplacednearasourceofelectricitythe

electricalsignalmayaffectthemeter’sdisplayedreading.

MeterDescription

1 Vaneimpeller

2 RelativeHumidity&Temperaturesensors

3 LCDdisplay

4 POWERbutton

5 HOLDbutton

6 MODEbutton

7 Batterycompartment(onrear)

8 Tripodmountinghole

9 Impellersetscrew(onside)



Specifications

Measurements Range Resolution Accuracy

m/s(meterspersecond) 0.40to25m/s 0.1m/s

80to999ft/min 0.1ft/minFPM(feetperminute)

1000to4922ft/min 1ft/min

KMH(kilometersperhour) 1.4to90.0km/hr 0.1km/hr

M/H(milesperhour) 0.9to55.9mph 0.1mph

±(3%FS)

BFT(beaufort) 0to10 1BFT ±1BFT

KNT(knots) 0.8to48.6knots 0.1knots ±(3%FS)

Temp./WNCL(Wind‐chill)‐15to50

C(5to122

F) 0.1

C/F ±1

C(±1.8

F)

RH(relativehumidity) 5to95%RH 0.1%RH ±3%RH*

WB(wetbulb)‐15to50

C(5to122

F) 0.1

C/F

DP(dewpoint)‐75to50

C(‐103to122

F) 0.1

C/F

HI(heatindex)‐35to205

C(‐31to401

F) 0.1

C/F

WBGT(wetbulbglobe)‐29to54

C(‐20to130

F) 0.1

C/F

Calculation

*@25

C10‐90%RHotherwise±5%RH

GeneralSpecifications

Display 28x14mm(1.1x0.5”)LCDwithlowbattery&

multifunctionindicators

Max/Avg/HoldModes Maxshowshighestreading;AVGaveragesreadings;

DataHoldfreezesthedisplay

Operatingconditions 0to50

C(32to122

F)/<80%RH

Powersupply Lithiumbattery(CR‐2032orequivalent)

Dimensions/weight 152x40x18mm(6.0x1.6x0.7”);60g(2.1oz.)

BatteryReplacement

Themeterhasalowbatteryindicator(BAT).Important:Turnthemeter

offbeforeopeningthebatterycompartment.Usingacoin,turnthe

batterycompartmentcoverCOUNTER‐CLOCK WISEtoremoveit.Once

opened,observethepositionofthebattery,placingthenewoneinthe

sameposition.Securethebatterycompartmentcoveranddisposeof

thelithiumbatteryinaccordancewithlocal,state,ornationaldisposal

codes.



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.



ImpellerReplacement

ThereplacementpartnumberfortheimpellerkitisAN25‐V(two

impellersaresupplied).Loosenandremovetheimpellersetscrew(9)

andthen,fromthebackofthemeter,turntheimpellercounter‐

clockwisetoremove.Insertnewimpellerandturnitclockwisetolock

it.Insertandtighten

theimpellersetscrewtocompletethe

replacement.



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

Extech Instruments AN25, Extech AN25 User manual

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