Extech Instruments VFM200 User manual

Brand: Extech Instruments

Model: VFM200

Category: Measuring, testing & control

Type: User manual

Extech Instruments VFM200 is an accurate and reliable device used to measure the concentration of formaldehyde (HCHO) and total volatile organic compounds (TVOC) in the air. It features a fuel cell formaldehyde sensor technology and provides real-time readings of both HCHO and TVOC concentrations. The VFM200 has a backlit LCD display, selectable units of measurement (PPM or mg/m³), and audio-visual high and low alarms for HCHO. It also has an auto power-off function to conserve battery life.

UserManual



Formaldehyde(HCHOorCH

0)andTotal

VolatileOrganicCompounds(TVOC)Tester



ModelVFM200



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



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



Description



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)



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,use rs 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



Extech Instruments VFM200 User manual

Brand: Extech Instruments

Model: VFM200

Category: Measuring, testing & control

Type: User manual

Download PDF

report

Extech Instruments VFM200 User manual

Extech Instruments VFM200 User manual

Related papers

Other documents