Extech EMF450 Bruksanvisning
Extech
Mätutrustning
EMF450
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USERMANUAL
Multi‐FieldEMFMeter
ModelEMF450
EMF450-en-GB_V1.1 8/15 3
Introduction
Thismetersimultaneously Magneticmeasuresanddisplays Field, ElectricField,andRFStrength.
Theunitof units ofmeasurementandthemeasurementtypesareexpressedin electricaland
magnetic strengthfield andpower powerdensity.ThismeterisidealforEMFmeasurementsof
lines,electricalappliances,industrialdevices,cellphones,base stations, and microwave leakage.
This tested calibrateddeviceisshippedfully and and,withproperuse,willprovideyearsof
reliableservice. forPleasevisit (www.extech.com)our website tocheck thelatestversionofthis
UserGuide,ProductUpdates,ProductRegistration,andCustomer Support.
Features
Data hold (HOLD)
Overload display “OL”.
Brightness ‐ ‐options: low medium high
Selectable Auto Power off (APO) Time: 1; 3; 5; 10; 15; 30 minutes
Key press Sounds / Alarm Sounds:On ;Off withprogrammabletoneselections
Information screen shows software version
Languages: English, Traditional Chinese, Simplified Chinese, Japanese, Spanish
Magnetic μ units selection：Gauss (mG) or Tesla ( T)
Electric field strength: V/m
RF μ μ Strength Units selection: ( W/m² ~mW/m²) ( W/cm²) (m V/m ~V/m) (mA/m) (dBm).
Low‐FrequencyEMFReadings:IndividualandaggregatedXYZaxialreadings:
High‐ frequency EMF Readings
RF Historical Records; up to 20 groups.
Low battery indication：HIGH LOW
External USB Power Supply: ” ”
EMF450-en-GB_V1.1 8/15 6
Operation
PowerON/OFF
1. the the the Press power powerbuttonto meter.The display willshow main
measurementscreen. If themeter does not power on, check that the batteries are
installedcorrectlyandarefresh(seebattery laterinstallation/replacementsection in
thisguide).TheEM450canalsobepoweredfrom a USB port.
2. the Pressandholdthe toPowerbuttonfor 3 seconds power off meter.
ExternalUSBpowersupply
An iconis isdisplayed powerwhenanexternalUSB supply connectedtothemeter’sUSB
jackon bottom ofthe the 4.7~5.2VDCmeter.Voltagespecificationis withcurrentgreater
thanor ofequal overto500mA.USBcablesshouldnotreach thetoprim the duringbuttons
testingsincetheEMF450will recognize thiscableas an antennacausingthe readings tobe
inaccurate.
Datahold(HOLD)
Pressthe the theHOLDbuttontofreeze currentreadingson display.TheHOLD display icon
willappearwhenthis HOLDmodeisactive.Toreleasethedatapressthe buttonagain.
Electric Field Measurements
TheEM450measurestheelectricfield(ElectricalPower)intheatmosphereofthesensor’s
surroundings.Thesensororientationisprintedonthebackofthemeter.
Performalltestsaccordingtotheindicateddirectionoftheelectricfieldsensor.
Holdthemeteratthebottomandatarm’slength,asshowninFigure3.
Figure3–OrientingthemeterforElectricalFieldMeasurements
Produktspecifikationer
| Varumärke: | Extech |
| Kategori: | Mätutrustning |
| Modell: | EMF450 |
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