Extech Instruments VFM200 Manuale utente

UserManual



Formaldehyde(HCHOorCH20)andTotal

VolatileOrganicCompounds(TVOC)Tester



ModelVFM200



AdditionalUserManualTranslationsavailableatwww.extech.com

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2VFM200‐en‐GB_V1.212/16

Introduction



ThankyouforselectingtheExtechInstrumentsModelVFM200.TheVFM200measuresHCHO

(formaldehyde)andTVOC(TotalVolatileOrganicCompounds).

PotentialsourcesforTVOCsincludepaints,finishes,adhesives,cigarettesmoke,pesticides,

personalcareproducts,carexhaust,newfurnishings,wallcoverings,householdcleansers,and

cookingfuels.Chemicalsinclude:Acetone,EthyleneGlycol,Formaldehyde,Xylene,1,3‐butadiene,

Tetrachloroethene,HydrogenSulfide,Ammonia,Toluene,Benzene,MethyleneChloride,

Perchloroethylene,andMTBE.

Thisdevice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.

Features

FuelCellFormaldehydeSensorTechnology

Highaccuracymeasurements

BacklitLCDdisplay

Real‐timedisplayofHCHO(formaldehyde)concentrationinair

Real‐timedisplayofTVOC(TotalVolatileOrganicCompounds)concentrationinair

Twounitselections(PPM,mg/m³)

Audio‐visualHighandLowAlarmsforHCHO

Autopoweroff

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Description

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METERDESCRIPTION

1. HCHOsensor(front)

2. ACAdaptorjack(underflap)

3. DownarrowandAlarmSetupbutton

4. Batterycompartment(rear)

5. ON‐OFFbutton(alsousedinAlarmSetup)

6. UparrowandUNITselectionbutton

7. BacklitDisplay

8. TVOCsensor(rear)

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3VFM200‐en‐GB_V1.212/16

mg/m

LCDDISPLAY

1. HCHOreading

2. TVOCreading

3. Selectableunitsofmeasure

4. AlarmBeepersymbol

5. AutoPowerOFFreminder

6. RechargeableBatterystatus

7. HighandLowAlarmsymbols

Operation

POWERTHEMETER

Pressthe buttontoturnonthemeter.Thebatterysymbolinformstheuserastothebattery

strength.Connectthebatterychargertorechargethebattery.Longpressthebuttonto

poweroff.TheLCDwillcountdown:3,2,1,thenOFFbeforeswitchingoff.

AUTOPOWEROFF

Themeterwillswitchoffafter30minutesofinactivity.Pressanyfunctionbuttontopreventthe

meterfrompoweringoff;theautopowerofftimerwillbethenbereset.TheAPOdisplay

symbolremindstheuserthatAutoPowerOFFisalwaysactive.

GERNERALUSE

AllLCDdisplaylineswillswitchONwhenpowerisappliedtothemeter.ThebottomTVOC

displaywillcountdownfrom10secondsorfrom90seconds(dependingonthe

environment)tozero.Whencountdowniscompletethemeterisreadyforuse.

Innormalmode,thetopdisplayindicatestheHCHOconcentrationinPPMormg/m³.The

bottomdisplayindicatestheTVOCconcentrationinPPMormg/m³.

UsetheUNITbuttontoswitchunitsbetweenPPMandmg/m³.

Withthemeteron,ifthemeasuredHCHOconcentrationexceedsthehighorlowuser‐

programmableAlarmthresholds,theLEDdisplaywillflashredincolorandtheaudible

beeperwillsound(unlessithasbeendisabledwiththeSET/▼button).PressSET/▼to

silencethealarmbeeper(whenitissounding)ortodisablethebeeperentirely.When

disabled,thedisplayedbeepersymbolisswitchedoff.

ALARMSETUP(HCHOonly)

LowAlarmSetup

1. LongpresstheSET/▼buttontoenterthesetupmode.

2. ThelowalarmiconwilldisplayandtheLCDwillshowthelowalarmthreshold.

3. Usethe▲and▼buttonstoadjustthelowalarmthreshold.

4. Pressthebuttontogotothehighalarmsetupscreen.

HighAlarmSetup

1. Usethe▲and▼buttonstoadjustthehighalarmthreshold.

2. Pressthebuttontoreturntothenormalmeasurementmode.

4VFM200‐en‐GB_V1.212/16

CONTROLBUTTONS

1. Shortpressthe▼SET buttontosilencethebeeper(whenitissounding)orto

disable/enablethealarmbeeper.Thisbuttonisalsousedasadownarrowtochangethe

highandlowAlarmthresholdvaluesintheAlarmSetupmode.

2. Longpressthe▼SETbuttontoentertheAlarmSetupMode(SeeAlarmSetupsection).

3. Shortpressthe▲UNITbuttontochangetheunitofmeasure(PPMormg/m³)ortouseit

asanuparrowtosetthealarmthresholdvaluesintheAlarmSetupmode.

SAFETY

Donotstoreorusetheinstrumentinanenvironmentwherecorrosivegasispresent.

Donotobstructthesensorswheninuse.

Useonlythesuppliedlithium‐ionbatterytopowerthemeter.

UseonlythesuppliedACadapter/batterychargertochargethelithium‐ionbattery.



BATTERYCHARGEandREPLACEMENT

1. Whenthebatteryrequirescharging,plugthesuppliedbatterychargerintothemeter(left

side,underflap)andtoasourceofACpower.Afullchargerequires2hours.

2. Toreplacethebattery,opentherearbatterycompartmentandreplacethePolymer

lithium‐ionbattery(7.4V1300mAh).Re‐assemblethemeterbeforeuse(part#VPC‐BATT)

BatterySafetyNotes:Pleasedisposeofbatteriesresponsibly;neverdisposeofbatteriesinafire,

batteriesmayexplodeorleak.Ifthemeterisnottobeusedfor60daysormore,removethe

batteryandstoreseparately.



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.

CLEANINGANDSTORAGE

Periodicallywipethecasewithadampclothandmilddetergent;donotuseabrasivesorsolve

nts.Pleaseremovethebatteryifthemeterisstoredforalongperiodoftime.

5VFM200‐en‐GB_V1.212/16

Specifications



SensorProfessionalFuelCelltechnology

HCHORange0.00to5.00mg/m³(orPPM)

HCHOResolution0.01mg/m3(orPPM)

HCHOBasicAccuracy±5%FS

TVOCRange0.00to9.99mg/m³(orPPM)

TVOCResolution0.01mg/m³(orPPM)

TVOCBasicAccuracy±5%FS

ResponseTime≤2seconds

OperatingTemperature0°Cto40°C(32to104°F)

StorageTemperature‐10°Cto60°C(14to140°F)

PowerSupplyRechargeablePolymerlithium‐ionbattery(7.4V1300mAh)

BatteryChargeTimeApprox.3hourswithACadapter

Battery7.4V1300mAh(part#VPC‐BATT)

Dimensions165x60x25mm(6.5x2.4x1.0in.)

Weight584g(20.6oz.)



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

ISO‐9001Certified

www.extech.com



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