407780A‐EU‐ENv1.34/14
2
Introduction
ThankyouforselectingtheExtechInstrumentsModel407780A.Thisdeviceisshippedfullytested
andcalibratedand,withproperuse,willprovideyearsofreliable service.Pleasevisitourwebsite
(www.extech.com)tocheckforthelatestversionofthisUserGuide,ProductUpdates,and
CustomerSupport.
Features
TheSoundLevelMetercomplieswiththerequirementsofIEC61672‐1:2003standardfora
Class2instrument.
Theinstrumentcontainsseveralfeatureswhichpermitsoundlevelmeasurementsundera
varietyofconditions.
Featuresinclude:
Fivemeasurementranges
Fast,SlowandImpulsetimeweightingsettings
AandC
frequencyweightingsettings
Storageofupto32000measurementrecords
USBserialportfordow nloadingrecordsto acomputerorrealtimeanalysis
AC/DCsignaloutputsareavailablefromasinglestandard3.5mmcoaxialsocketsuitable
forusewithafrequencyanalyzer,levelrecorder,FFTanalyzer,graphic
recorder,etc.
Leq,SEL,SPLMAX,SPLMIN,PH(PeakHold),L05,L10,L50,L90,andL95,tenmeasured
parametersaremonitoredduringmeasurement
Presetmeasurementtime
Soundlevelalarmoutputconnector
w ww . . co m
information@itm.com1.800.561.8187