Extech Instruments EMF300 User manual

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USERGUIDE
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MicrowaveLeakageDetector
ModelEMF300
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www. .com [e-mail]1.800.561.8187

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12
3
4
2” (5cm)
Introduction
ThankyouforselectingtheExtechInstrumentsModelEMF300.Thisdeviceisacompactleakage
detectordesignedtomeasurehighfrequencyradiationlevelsemittedfromhouseholdand
commercialmicrowaveovens.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.
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MeterDescription
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1. LCDdisplay
2. SensorlocatedonrearofmeterdirectlybehindtheLCDdisplay2”(5cm)fromthetopof
themeterontheplanerepresentedbytheleftandrightarrowsshownunderthedisplay.
3. PeakHoldButton(freezesthehighestreading)
4. PowerON/OFFswitch
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Note:Batterycompartmentlocatedontherearoftheinstrument.
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www. .com [e-mail]1.800.561.8187

3EMF300‐EU‐ENv1.112/13
Operation
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Measurements
SlidethepowerswitchtotheONposition.Thesensorislocatedontherearofthemeter2
inches(5cm)fromthetopofthemeterontheplaneindicatedbytheleftandrightarrowsnext
tothewordSENSORonthefrontofthemeter.
TouchtheTOPofthemetertothemicrowavedoorandvariousspotsonthemicrowave
enclosure.
ThedisplaywillindicatetheEMFvaluethatthesensorisreading.Ifthemetersensesareading
outsidethespecifiedrangeoftheinstrumentthe‘OL’(overload)displaysymbolwillappearon
theLCD.
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AlarmLimit
Whenthemeasurementis>1mW/cm^2themeter’sbuzzerwillsoundtoalerttheuserthatthe
EMFvalueexceedsthealarmlimit.
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PeakHold
TocapturethehighestvalueontheLCDdisplay,momentarilypressthePeakHoldkey.ThePEAK
displayiconwillappearonthedisplayandthemeterwillonlydisplaythehighestreading.
MomentarilypressthePeakHoldkeyagaintoreturntonormaloperation(thePEAKdisplayicon
willswitchOFF).
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MicrowaveOvenSafetyStandards
IntheU.S.,pleasecheckwithTheFoodandDrugAdministration(FDA)formicrowaveoven
safetystandardswithregardtoleakagerequirements.ThemicrowaveleakagelimitintheU.S.at
thetimeofthiswritingis5mW/cm2at2inches(5cm).Thismaydifferfromcountrytocountryor
mayhavebeenupdatedintheU.S.sincethetimeofthiswriting.Besuretoobtainthe
appropriateandcurrentstandardsandregulationsfortheappropriatecountryorlocation
beforeusingthisdevice.NeitherFLIRSystemsnorExtechInstrumentsisresponsiblefordamage
toequipmentorinjurytopersonswithregardtotheuseofthismeterorintheinterpretationof
thesafetystandardsinquestion.Fullsafetyresponsibilityisassumedbytheuseratalltimes.
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BatteryReplacement
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WhenthebatteryiconappearsontheLCDorifthemeterdoesnotswitchON,the9Vbattery
mustbereplaced.
Thebatterycompartmentislocatedontherearoftheinstrument.Openthecompartmentto
replaceorinstallthebatteryandthensecurethecompartmentbeforeswitchingthemeterON.
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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.
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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.
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Specifications
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Display  LCDdisplay
  Displaysize40x25mm(1.6x1.0”)
  Digitheight12mm(0.5”)
PeakHold Capturesthehighestreadingwhenengaged
Measurementranges0to1.999mW/cm^2
Accuracy <2db(1mW/cm^2@2.45GHz±50MHz)
AlarmSetting Audiblealarmiflevelis>1mW/cm^2
Overrangeindication"OL"appearsontheLCD
Powersupply 9VBattery
Powerconsumption2.7mADCapproximate
OperatingFrequency2.45GHz±50MHz(30MHzto3GHzforreferenceonly)
OperatingconditionsTemperature:0to50oC(32to122oF);Humidity:<80%RH
Dimensions 152x69x36.3mm(6.0x2.7x1.4")
Sensorsize50mm(2”);locatedontherearoftheinstrumentdirectlybehindthe
LCDdisplay
Weight  Approx.202g(7.1oz.)
Copyright©2013FLIRSystems,Inc.
Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform
www.extech.com
www. .com [e-mail]1.800.561.8187