User manual

407790A-en-US_v2.0 8/16

1.2Features

TheSoundLevelMetercomplieswiththerequirementsofIEC61672‐1:2003standardfora

Class2instrument.Seespecificationssectionformoreapplicablestandardsthatapplytothis

meter.

 1/1octavebandanalysisfrom31.5Hzto8kHz

 1/3octavebandanalysisfrom25Hzto10kHZ

 Canperform1/1and1/3octavebandanalysissimultaneously

 4GBMicroSDcard

 USBinterface

 Dataloggingfunction

 AC/DCsignaloutputavailableforlevelandgraphicrecorder

 Comparatoroutputfunction

 Externaltriggerinputfunction

 Realtimeclockwithcalendar

 Mainchannel(soundmeter,analyzermode)

 SubChannel(soundlevelmetermode)

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The407790Aallowsthefollowingquantitymeasurements.

Simultaneousmeasurementsofallitemswithselectedtimeweightingandfrequency

characteristics.

 Soundlevel  Lp

 Equivalentcontinuoussound Leg

 Soundexposurelevel SEL

 Maximumsoundlevel Lmax

 Minimumsoundlevel Lmin

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 Percentilesoundlevel L

N

(L05,L50,L90,L95)calculatedfromLp

 Frequencyrating A,C,Z

 Timeweighting

MainChannel Fast,Slow,10ms,impulse

SubChannelFast,Slow,10ms,impulse

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 SafetySymbol:

ComplieswithEMC

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