Extech Instruments FM100 User manual



USERGUIDE



DigitalFormaldehydeMeter



ModelFM100

www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

EXTECHINSTRUMENTS

2FM100‐en‐GB_v1.76/16

Introduction



ThankyouforselectingtheExtechInstrumentsModelFM100.TheFM100measures

FormaldehydeCH2O(HCHO)concentration,AirTemperature,andRelativeHumidity.Thealarm

featurealertstheuserwhentheFormaldehyde0.08ppmlimitisexceeded.

TheFM100canbewallmountedorusedasatabletopdevice.

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)forthelatestversionofthisUser

Guide,ProductUpdates,andCustomerCare.



Features

AlternatelydisplaysFormaldehydeconcentration,AirTemperature,andRelative

Humidityat6‐secondintervals

BrightmulticolorLEDdisplaysgreenforsafeHCHOlevels,yellowforcaution,andredfor

danger

AlarmdisplayiconandaudiblebeeperalertsuserwhenFormaldehydeconcentration

limitof0.08ppmisexceeded

SelectableFormaldehydeunitofmeasureppmormg/m3

ZEROcalibrationfunction

ManualtemperatureandRelativeHumiditycompensation

DesignedwithelectrochemicalCH2O(HCHO)sensor

Lowbatteryindicator



MeterDescription

1. Offsetadjustmentpotentiometer



2. ControlButton



3. ACPowerAdaptorPort



4. LCDDisplay



5. Multi‐colorLEDIndicator

Note:Batterycompartment,tiltstand,

andwallmountlocatedonrearof

meter.

www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

EXTECHINSTRUMENTS

3FM100‐en‐GB_v1.76/16

Operation

Poweringthemeter

Ifthemeterissuppliedwithoutbatteriesinstalled,installthesuppliedbatteriesintherear

batterycompartmenttopowerthemeter.Pleaseobserveproperpolarity.

Ifthemeterissuppliedwiththebatteriesinstalled,andaprotectivebatterystripisinstalledin

thebatterycompartment,removetheprotectivestriptopowerthemeter.

Alternatively,pluganACadaptorintothejackonthesideofthemeterandthenintoanAC

powersourcetopowerthemeter.

NormalOperatingMode

WhenswitchedON,theLCDdisplays‘0000’foraperiodoftime,dependingonthetimethatthe

meterhasbeeninactive.Themeterwillthenproceedtothenormalmodeofoperationwhere

theLCDdisplaysthecurrentHCHOlevelinppm,theTemperature(°C/°F),andRH%(relative

humidity)alternatelyat6secondintervals.

Multi‐ColorStatusIndicatorLED

TheFrontpanelstatusLEDusesacolor‐codingsystemtoinformtheuserastothemeasured

HCHOconcentration.GreenforGood;YellowforHazard;RedforDanger.IftheLEDfailsto

illuminatepleasereturntheunitforservice.

Alarmindication

WhentheFormaldehydelimitof0.08ppmisexceededthemeteraudiblybeepsandflashesan

alarmiconontheLCD.RefertotheCONTROLBUTTONsectiontolearnhowtosilencethe

beeper.

ControlButton

TheControlbuttonlocatedontheleftsideofthemeterisusedtocontrolandprogramavariety

ofmeterfunctions.PressandholdtheControlbuttontoenterthefunctionmode.Repeated

pressesofthecontrolbuttoncyclethroughtheavailableparameters.Theseparameters,in

order,are:

ZEROCalibration

TemperatureUnitselection(°C/°F)

Temperaturecompensation(usedinconjunctionwithsidepotentiometeradjust)

Humiditycompensation(usedinconjunctionwithsidepotentiometeradjust)

Unitofmeasurechange(ppmormg/m3)

AlarmBeeperON/OFF

FactoryDefaultsettingreset

Escape/Return(abortoperationandreturntonormaloperation)

Note:Aremovablecoverprotectstheoffsetadjustmentandpreventsunintentional

adjustment.Removetheprotectivecovertoperformanoffsetadjustment.



www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

EXTECHINSTRUMENTS

4FM100‐en‐GB_v1.76/16

ZEROCalibration

Ensurethatcalibrationisperformedinacleanairenvironment(noVOCsorHCHOgases).

Pressandholdthecontrolbuttonfor3seconds(until appearsontheLCDscreen).

Pressandholdthebuttonagaintostartcalibration.

Releasethecontrolbuttonandwait300secondsforthecalibrationtocomplete.Themeter

willdisplay‘END’for2secondswhencalibrationiscompleteandwillthenreturntothe

normalmodeofoperation.



ChangingTemperatureUnitsoC/oF

Whenisshownonthedisplay,pressandholdthecontrolbuttontodisplaythecurrent

temperatureunit.MomentarilypresstheCalibrationcontrolbuttontotoggle°Cand°F

units.Tosavesetting,pressandholdthecontrolbutton.Themeterwillreturntothe

normalmode.



TemperatureCompensationAdjustment

Whenisshownonthedisplay,pressandholdthecontrolbutton.Thefactorydefault

‘0.0’valuewillflash.Turnthecompensationpotentiometerclockwisetoincreasethe

temperatureoffsetorcounterclockwisetodecreaseoffset).Therangeis‐5.4°Fto+5.4°F(‐

3.0°Cto+3.0°C).Whendone,pressandholdthecontrolbuttontosavethesetting.The

meterwillreturntothenormalmeasurementmodeandwillreflecttheoffsetwhen

temperaturereadingsaredisplayed.



www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

EXTECHINSTRUMENTS

5FM100‐en‐GB_v1.76/16

RelativeHumidityCompensationAdjustment

Whenisshownonthedisplay,pressandholdthecontrolbuttontoentertherelative

humiditycompensationadjustmentmode.Momentarilypressthecontrolbuttontomakea

stepchangeintheRH%offset;therangeis‐9to+9RH%.Whendone,pressandholdthe

controlbuttontosavethesetting.Themeterwillreturntothenormalmode.

Warning:Whileperformingthecompensationadjustments,donottouchthesensor,as

accuracymaybelostwhenadjustingthetemperaturevalues.



Warning:WhileperformingtemperatureorRH%compensationadjustmentsdonottouch

theslottedopeningsonthemeterhousing,thesearewherethesensorsarelocated.

Otherwise,accuracymaybecompromised.



ChangeFormaldehydeUnit(ppmormg/m3)

When isshownonthedisplay,pressandholdthecontrolbuttontoentertheunit

selectionmode.Choosetheunits(ppmormg/m3)bymomentarilypressingthecontrol

button.Oncethedesiredunitsarechosen,pressandholdthecontrolbuttontosavethe

setting.TheLCDdisplaywillreturntothenormalmeasurementmode.



BeeperActivateorInactivateSelection

When isshownonthedisplay,pressandholdthecontrolbuttontoenterthealarm

(beeper)settingmode.Momentarilypressthecontrolbuttontotogglethebeeper

conditionONorOFF.Onceselected,pressandholdthecontrolbuttontosaveandreturn

tothenormalmodeofoperation.



www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

EXTECHINSTRUMENTS

6FM100‐en‐GB_v1.76/16

ReverttoFactoryDefaultSettings

When isshownontheLCDdisplay,pressandholdthecontrolbuttontoresetthe

metertoitsdefault(factory)settings.



Escape/ReturnFunction

When isshownontheLCDdisplay,pressandholdthecontrolbuttonfor3secondsto

abortthecurrentprogrammingstepandreturntothenormalmeasurementmode.



Maintenance

LowBatteryConditionandBatteryReplacement

Whenthebatteryicon()appearsontheLCD,thebatteriesmustbereplaced.Ifthemeteris

lowonbatteryvoltage,erraticorinaccuratereadingsmayresult.Neverusethemeterwiththe

lowbatteryicondisplayed.

Thebatterycompartmentisonthebackoftheinstrument.Slidethebatterycompartmentcover

offofthemetertoaccessthebatteries.Replacethe4AAAbatteriesobservingproperpolarity

andreplacethecompartmentcoverbeforeswitchingthemeterON.

BatterySafetyReminders

oPleasedisposeofbatteriesresponsibly;observelocal,state,andnationalregulations.

oNeverdisposeofbatteriesinafire;batteriesmayexplodeorleak.

oNevermixbatterytypes;installnewbatteriesofthesametype.

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.

DisplayErrorCodes

Thefollowingerrorsmayappearonthedisplay:

E‐1:HCHOreadingsareoutsideofthespecifiedmeasurementrange

E‐2:Temperaturereadingsareoutsideofthespecifiedmeasurementrange

E‐3:RelativeHumidity(RH%)readingsareoutsideofthespecifiedmeasurementrange

www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

EXTECHINSTRUMENTS

7FM100‐en‐GB_v1.76/16

Specifications

Display  MultifunctionLCD;Dimensions48x28mm(1.89x1.10”) 

FrontPanelLEDindicatorGreenfornormal,yellowforcaution,andredfordanger

FormaldehydeCH2O(HCHO)measurementrange 0.00to5.00ppm(mg/m3)

HCHOaccuracy ±5%ofreading+0.03ppm(baselinedrift)

AccuracyNote:AccuracymeetsNIOSHacceptancecriterionwithin

±25%ofthetruevalueat95%confidencelevel

AirTemp.Measurementrange0°Cto50°C(32°Fto122°F)

AirTemperatureResolution 0.1°C(0.1°F)

AirTemperatureAccuracy  ±1.0°C(1.8°F)

RelativeHumidityrange  20to90%RH

RHResolution  1%RH

RelativeHumidityAccuracy ±5%

PowerAAAbatteriesx4pcsoruniversalACadaptor(included)

Meterdimensions  113x108x53mm(4.4x4.3x2.1”)

Weight159g(5.6oz.)

SensorCrossSensitivitytable

SubstanceCrossSensitivity(%)

CO1

H2SNoData

H20.1

SO212

NO2NoData

NONoData

CL2‐3

C2H4NoData

NH30.0

CO20.0

Ethanol,methanol50

Phenol7

WaterVapor0.0*

*NB:Withinspecifiedrange.Stepchangesin%RHproduceshortterm

transientresponse



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

ISO‐9001Certified

www.extech.com



www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

Table of contents

Other Extech Instruments Measuring Instrument manuals

Extech Instruments

Extech Instruments CG304 User manual

Extech Instruments

Extech Instruments CLT600 User manual

Extech Instruments

Extech Instruments 480836 User manual

Extech Instruments

Extech Instruments HT200 User manual

Extech Instruments

Extech Instruments BR250 User manual

Extech Instruments

Extech Instruments SP505 User manual

Extech Instruments

Extech Instruments 407119-NIST User manual

Extech Instruments

Extech Instruments LT510 User manual

Extech Instruments

Extech Instruments 407355-NIST User manual

Extech Instruments

Extech Instruments EC600 User manual

Extech Instruments

Extech Instruments RH600 User manual

Extech Instruments

Extech Instruments MA1500 User manual

Extech Instruments

Extech Instruments MO230 User manual

Extech Instruments

Extech Instruments HD450 User manual

Extech Instruments

Extech Instruments RPM33 User manual

Extech Instruments

Extech Instruments 407117 User manual

Extech Instruments

Extech Instruments SL355 User manual

Extech Instruments

Extech Instruments EX850 User manual

Extech Instruments

Extech Instruments EX622 User manual

Extech Instruments

Extech Instruments Oyster Series User manual

Extech Instruments

Extech Instruments EX845 User manual

Extech Instruments

Extech Instruments 407777 User manual

Extech Instruments

Extech Instruments CO240 User manual

Extech Instruments

Extech Instruments GX900 User manual

Popular Measuring Instrument manuals by other brands

Suaoki

Suaoki D40 user manual

Elster

Elster BK-G1.6 operating instructions

Endress+Hauser

Endress+Hauser Deltabar FMD71 technical information

Duratool

Duratool D03128 manual

Vega

Vega VEGAPULS 65 Quick setup guide

Tonghui

Tonghui TH2618B Operation manual

Tenmars

Tenmars TM-801 user manual

MSR

MSR 145 user manual

TPS

TPS WP-82 manual

ELMETRON

ELMETRON CP-511 user manual

PCB Piezotronics

PCB Piezotronics 003C30 Installation and operating manual

Tenma

Tenma 72-10465 manual

Endress+Hauser

Endress+Hauser Proline Promag 50 Brief operating instructions

Siemens

Siemens SITRANS F Coriolis FCT030 Function manual

KLINGER

KLINGER CMF V Series instruction manual

EXFO

EXFO FTB-2 Notice

Keysight

Keysight M8290A Getting started guide

ADTEK

ADTEK MW-5 operating manual