User manual

EXTECHINSTRUMENTS

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

Introduction



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

FormaldehydeCH

O(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/m



 ZEROcalibrationfunction

 ManualtemperatureandRelativeHumiditycompensation

 DesignedwithelectrochemicalCH

O(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.