Extech Instruments 407780A User manual

USERGUIDE



IntegratingSoundLevelMeter

andDatalogger



Model407780A



www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

Introduction



ThankyouforselectingtheExtechInstrumentsModel407780A.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.



Features

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

Class2instrument.

Theinstrumentcontainsseveralfeatureswhichpermitsoundlevelmeasurementsundera

varietyofconditions.

Featuresinclude:

Fivemeasurementranges

Fast,SlowandImpulsetimeweightingsettings

AandCfrequencyweightingsettings

Storageofupto32000measurementrecords

USBserialportfordownloadingrecordstoacomputerorrealtimeanalysis

AC/DCsignaloutputsareavailablefromasinglestandard3.5mmcoaxialsocketsuitable

forusewithafrequencyanalyzer,levelrecorder,FFTanalyzer,graphicrecorder,etc.

Leq,SEL,SPLMAX,SPLMIN,PH(PeakHold),L05,L10,L50,L90,andL95,tenmeasured

parametersaremonitoredduringmeasurement

Presetmeasurementtime

Soundlevelalarmoutputconnector



www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

InstrumentCare

Donotattempttoremovethemeshcoverfromthemicrophoneasthiswillcause

damageandaffecttheaccuracyoftheinstrument.

Protecttheinstrumentfromimpact.Donotdropitorsubjectittoroughhandling.

Transportitinthesuppliedcarryingcase.

Protecttheinstrumentfromwater,dust,extremetemperatures,highhumidityand

directsunlightduringstorageanduse.

Protecttheinstrumentfromairwithhighsaltorsulphurcontent,gasesandstored

chemicals,asthismaydamagethedelicatemicrophoneandsensitiveelectronics.

Alwaysswitchtheinstrumentoffafteruse.Removethebatteriesfromtheinstrumentif

itisnottobeusedforalongperiodoftime.Donotleaveexhaustedbatteriesinthe

instrument,astheymayleakandcausedamage.

Cleantheinstrumentonlybywipingitwithasoft,dryclothor,whennecessary,withacloth

lightlymoistenedwithwater.Donotusesolvents,abrasives,alcoholorcleaningagents.

www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

MeterDescription



1. 1/2‐inchmicrophone

2. LCDdisplay

3. Powerbutton

4. Leq/SEL/SPLselectbutton

5. RUN/Pausebutton

6. UP/DOWNrangesettingbuttons.

7. A/CFrequencyweightingselectswitch

8. FAST/SLOW/IMPULSEtimeweighting

selectswitch.

FAST:125ms,SLOW:1second,

IMPULSE:35mswithslowdecay

9. MAXbutton

10. RECORD/ERASEbutton

11. Realtimeclockbutton

12. Integrationtimebutton

13. Alarmoutput

14. AC/DCoutput

15. CAL(calibration)adjustment

16. Externalpowerinput

USBinput(locatedonbottom,not

shown)

Tripodmountingscrew(locatedonrear,notshown)

Batterycover(locatedonrear,notshown)



www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

DisplayDescription



1. Soundlevelrangeindicator(5ranges):30–90dB,40–100dB,50–110dB,60–120dBand70–

130dB

2. Bargraphrepresentsthecurrentsoundlevel(1dBresolution).

3. Date/timeandelapsedtimeindicator:year‐month‐dayorhour:minute:second.

Duringintegratingthisindicatordisplaystheelapsedtimeinseconds.

WhenviewingthePeakHoldvaluethisindicatordisplaysPH.

WhenviewingthepercentilevaluesthisindicatordisplaysL:05,L:10,L:50,L:90orL:95.

4. Leq:Equivalentcontinuoussoundlevelreading

5. SEL:Soundexposurelevelreading

6. SPL:Time‐weightedsoundlevelreadingSoundPressureLevel

7. Low‐batteryindication

8. MAX:WhendisplayedflashingitindicatesthattheMaximumtime‐weightedsoundlevel

readingisshown.WhenitisdisplayedsoliditindicatesthattheMaximumsoundlevel

readingisdisplayed.

9. MIN:Minimumsoundlevelreading.

10. REC:IndicatesthatDatarecordingisinprocess

11. Soundlevelreading(0.1dBresolution):30.0–130.0dB

12. FULL:Indicatesthattherecordingmemorybankhasbeenfilled

www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

13. dB:Soundlevelunit(decibel)

14. A,C:AorCfrequencyweightingindicator.

15. IMP:Impulsetimeweightingindicator

16. OVER:Over‐rangeindicatorappearsflashingwhenover‐rangemeasurementshavebeen

includedinthesoundlevelmeasurementdatarecordingsession.

17. SLOW:Slowtimeweightingindicator

18. FAST:Fasttimeweightingindicator

19. :Indicatesthatintegratingsoundlevelmeasurementshavebeenstopped.

20. :Indicatesthatintegratingsoundlevelmeasurementsarepaused.

21. :Startandcontinuousintegratingmeasurementindicator.

22. UNDER:Under‐rangeindicatorappearsflashingwhenunder‐rangemeasurementshave

beenincludedinthesoundlevelmeasurementdatarecordingsession.



www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

Operation

Themeterhastwomodesofoperation,SoundLevelMetermodeandIntegratingSoundLevel

Metermode.

SoundLevelMetermeasurements

1. Pressthe buttontoswitchthemeterON.Theinitialstatedependsontheconditionsset

whenthemeterwaslastswitchedoff.

2. PresstheA/Cbuttontoselectthedesiredfrequencyweighting.

3. PresstheFAST/SLOW/IMPULSEbuttontoselectthedesiredresponsetime.

Note:Refertolocalstandardstoselecttheproperweightingandresponsetimeforthe

measurementstobeperformed.Requirementsvaryaccordingtocountryandtypeoftest.

OSHArequiresSlowandAweightformanyoftheirworkplacetests.

4. Usethe▲▼buttonstoselectthedesireddBrange.Chooseasettinginwhichthebar

graphindicationregistersapproximatelyinthemiddleoftherange.IftheOVERindicator

appearsduringameasurement,theupperlimitoftheselectedrangehasbeenexceeded.

Increasetherangesettinguntilthesymbolremainsoffduringmeasurements.Similarly,if

theUNDERindicatorappears,reducetherangesettinguntilthesymbolremainsoff.Both

indicatorsarenon‐latchingandwillclearwhenthecorrectrangeisselected.

5. Holdtheinstrumentcomfortablyinhand(awayfromthebody)orpositionitonatripod.

Pointthemicrophonetowardthenoisesource,thesoundpressurelevelwillbedisplayed

onthemeter’sLCDdisplay

6. Thenumericlevelindicationonthedisplayshowsthecurrentlymeasuredsoundlevel.The

readingisupdatedoncepersecond.

7. PresstheMAXbuttontodisplaythemaximumsoundlevelencounteredduringa

measurementperiod;theMAXindicatorwillblinkappearonthedisplay.PresstheMAX

buttonagaintoexitthismode

8. PressDATE/TIMEtochangefromcurrenttimehour:minute:seconddisplaytocurrent

dateyear–month‐daydisplay.Thedisplaywillreverttothecurrenttimedisplayafter2

seconds.



www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

IntegratingSoundLevelMetermeasurements

Theintegratingsoundlevelmodewillmeasurethesoundlevelovertimeandcalculatethe

followingresults:

LeqEquivalentcontinuoussoundlevelmeasurement

SELSoundexposurelevelmeasurement

SPLMAXMaximumsoundlevelmeasurement

SPLMIN Minimumsoundlevel)measurement

(PH) PeakHoldsoundlevelmeasurement

Percentile Soundlevel(L05,L10,L50,L90andL95)measurement

Whenusingthismeterinamodeotherthanthesoundlevelmeasurementmode,allprocessing

functionsprovidedbythemeterareperformedsimultaneously.Forexample,whenequivalent

continuoussoundlevelmeasurementisselectedtheexposurelevelandpercentilelevelarealso

determined.

1. Pressthe buttontoswitchONthemeter.

2. PresstheA/Cbuttontoselectthedesiredfrequencyweighting.

3. PresstheFAST/SLOW/IMPULSEbuttontoselectthedesiredresponsetime.

4. Usethe▲▼buttonstoselectthedesireddBrange.Chooseasettinginwhichthebar

graphindicationregistersnearthemiddleoftherange.IftheOVERorUNDERindicators

switchONfrequently,changethelevelrangesetting.

5. Settingtheintegratingmeasurementtime.(DefaultorManual)

Defaulttimes:

a. PresstheINTEGTIMEbuttononcetoselectadefaultintegratingtime.

b. Usethe▼▲buttonstoselectthemeasurementtime.

c. Theselectionwillcyclethrough:1sec,3sec,10sec,30sec,1min,5min,8min,10min

15min,30min,1hour,8hours,24hours.

d. After5secondsofinactivitythemeterwillstorethedisplayedselectionandreturnto

thenormalmode.

Manuallysettime:

a. PressandholdINTEGTIMEfor3secondstomanuallysettheintegrationtime.

b. Aflashingcursorindicatesthecurrentlyselectedparameter(seconds).

c. Usethe▼▲buttonstosetdesiredsecond.

d. PresstheINTEGTIMEbuttontomovetothenextparameter(minutes),repeatthis

procedureuntilthedesiredminutesandhourshavebeenset.PresstheINTEGTIME

buttontostorethesettingandtoexitthismode.Themaximummeasurementtime

settingis100hours.



www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

6. Pressthe►ǁbuttontostartthemeasurement,the►symbolandtheelapsed

measurementtimeisdisplayed.

Whenthemeasurementtimehaselapsed,themeasurementautomaticallyterminates

andthesymbolisdisplayed.

Duringmeasurements,the►ǁbuttoncanbeusedtopauseandresumeatest.

Duringpause,thepausesymbolǁisdisplayed.

Toterminatethemeasurement,pressandholdthe►ǁbuttonfor2seconds.

Ifanunderoroverrangeconditionoccursatleastonceduringmeasurement,theOVER

orUNDERindicatorappearstoindicatethattherecordeddatacontainsover‐rangeor

under‐rangedata.

Duringthisproceduremostofthebuttons,suchastheA/Cbuttonandlevelrange

buttons,areinoperative.Onlythe►ǁbuttonandtheLeqSELSPLbuttonscanbeused.

Allothersettingsmustbemadebeforestartingthemeasurement.

Pauseintervalsarenotincludedinthemeasurementtime.



7. Whenthemeasurementiscompleted,pausedorinprogress,presstheLeqSELSPLbutton

tocyclethroughanddisplaythefollowingmeasurementresults.

Leq:Equivalentcontinuoussoundlevelwithstartmeasurementtime.

SEL:Soundexposurelevelwithterminatemeasurementtime.

SPLMAX:Maximumsoundlevelwithtime.

SPLMIN:Minimumsoundlevelwithtime.

PH:PeakHoldsoundlevel

L:055%percentilesoundlevel

L:1010%percentilesoundlevel

L:5050%percentilesoundlevel

L:9090%percentilesoundlevel

L:9595%percentilesoundlevel

SPLINSTCurrentsoundlevelwithcurrenttime.

IfOVERisflashing,therecordeddatacontainsover‐rangemeasurements.

IfUNDERisflashing,therecordeddatacontainsunder‐rangemeasurements.

8. Pressandholdthe►ǁbuttonfor2secondstoexitthismeasurementmode,clearthe

measuredresult,andtoreturntothenormalsoundlevelmeasurementmode.



www. .com information@itm.com1.800.561.8187

407780A‐EU‐ENv1.34/14

SettingtheCurrentTimeandDate

Dateandtimeinformationisstoredwitheachstoredrecordblock.Therefore,itisimportantto

ensurethatthisinformationiscorrect.

1. PresstoswitchOFFthemeter.

2. PressandholdtheDATETIMEbuttonandthenpressthe buttontoswitchONthemeter

toenterthedateandtimesettingmode.

3. Aflashingcursorindicatesthecurrentlyselectedparameter(seconds),usethe▲▼buttons

tosetthecurrentsecond.

4. PresstheDATETIMEbuttontomovetothenextparameter(minutes)andusethe

▲▼buttonstosetthecurrentminute.

5. Repeatstep4tosetthecurrenthour,day,month,andyear.

6. PressDATETIMEtostorethenewdateandtime,andtoexitthismode.



RecordingData

IntheIntegratingSoundLevelMetermodethemetercanrecordandstoremeasurementdata.

Memorycapacityis32000recordswhichcanbestoredinupto255blocks.Recordingcanstart

whenintegrationbeginsoratapresettime.Thestoreddatacannotbeviewedonthemeter’s

display;itmustbedownloadedusingthesuppliedPCsoftware.

1. Settingthedatasamplingrate.

a) Pressthe buttontoswitchOFFthemeter.

b) PressandholdtheINTEGTIMEbuttonandthenswitchthemeterON,theIntrsymbol

andthesamplerateinsecondswillbedisplayed.

c) Usethe▲▼buttonstosetthesamplingrate(1to255seconds).

d) PressINTEGTIMEtostorethesettingandexitthismode.

2. Settheintegratingfunctionsasdescribedpreviously.

3. PresstheRECORDERASEbuttontoprepareforrecording.TheRECsymbolwillappearonthe

display.

4. Pressthe►‖button.ThemeasurementswillstartandtheRECsymbolwillbegintoflash,

indicatingthatdataarebeingstored.

5. Ifintegrationispaused,recordingwillalsopause.

6. Whenthememoryisfilled(32000datapointsor255blocksused),theRECFULLsymbolwill

bedisplayed.



www. .com information@itm.com1.800.561.8187

Table of contents

Other Extech Instruments Measuring Instrument manuals

Extech Instruments

Extech Instruments HDV-WTX2 Dimensions

Extech Instruments

Extech Instruments MA150 User manual

Extech Instruments

Extech Instruments MultiScope 381270 User manual

Extech Instruments

Extech Instruments RPM33 User manual

Extech Instruments

Extech Instruments 407412 User manual

Extech Instruments

Extech Instruments 38394 User manual

Extech Instruments

Extech Instruments CO230 User manual

Extech Instruments

Extech Instruments ExStik II EC400 User manual

Extech Instruments

Extech Instruments HD750 User manual

Extech Instruments

Extech Instruments MW12 User manual

Extech Instruments

Extech Instruments MA220 User manual

Extech Instruments

Extech Instruments DT300 User manual

Extech Instruments

Extech Instruments EasyView EA31 User manual

Extech Instruments

Extech Instruments CG304 User manual

Extech Instruments

Extech Instruments AN400 User manual

Extech Instruments

Extech Instruments MO750 User manual

Extech Instruments

Extech Instruments 407777 User manual

Extech Instruments

Extech Instruments 380973 User manual

Extech Instruments

Extech Instruments 407355 User manual

Extech Instruments

Extech Instruments EN150 User manual

Extech Instruments

Extech Instruments Oyster Series User manual

Extech Instruments

Extech Instruments 445580 User manual

Extech Instruments

Extech Instruments MA440 User manual

Extech Instruments

Extech Instruments 45168CP User manual

Popular Measuring Instrument manuals by other brands

Suaoki

Suaoki D40 user manual

Elster

Elster BK-G1.6 operating instructions

Endress+Hauser

Endress+Hauser Deltabar FMD71 technical information

Duratool

Duratool D03128 manual

Vega

Vega VEGAPULS 65 Quick setup guide

Tonghui

Tonghui TH2618B Operation manual

Tenmars

Tenmars TM-801 user manual

MSR

MSR 145 user manual

TPS

TPS WP-82 manual

ELMETRON

ELMETRON CP-511 user manual

PCB Piezotronics

PCB Piezotronics 003C30 Installation and operating manual

Tenma

Tenma 72-10465 manual

Endress+Hauser

Endress+Hauser Proline Promag 50 Brief operating instructions

Siemens

Siemens SITRANS F Coriolis FCT030 Function manual

KLINGER

KLINGER CMF V Series instruction manual

EXFO

EXFO FTB-2 Notice

Keysight

Keysight M8290A Getting started guide

ADTEK

ADTEK MW-5 operating manual