Extech Instruments 407780A Manuale utente

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

Indice

Altri manuali Extech Instruments Strumento di misura

Extech Instruments

Extech Instruments 475055 Manuale utente

Extech Instruments

Extech Instruments HD450 Manuale utente

Extech Instruments

Extech Instruments SDL800 Manuale utente

Extech Instruments

Extech Instruments 461895 Manuale utente

Extech Instruments

Extech Instruments EX613 Manuale utente

Extech Instruments

Extech Instruments 382075 Manuale utente

Extech Instruments

Extech Instruments CO100 Manuale utente

Extech Instruments

Extech Instruments SDL710 Manuale utente

Extech Instruments

Extech Instruments SL250W Manuale utente

Extech Instruments

Extech Instruments MA640 Manuale utente

Extech Instruments

Extech Instruments LT45 Manuale utente

Extech Instruments

Extech Instruments 380580 Manuale utente

Extech Instruments

Extech Instruments 380460 Manuale utente

Extech Instruments

Extech Instruments AN320 Manuale utente

Extech Instruments

Extech Instruments PQ3450-30 Manuale utente

Extech Instruments

Extech Instruments 42265 Manuale utente

Extech Instruments

Extech Instruments MA1500 Manuale utente

Extech Instruments

Extech Instruments SDL550 Manuale utente

Extech Instruments

Extech Instruments MA160 Manuale utente

Extech Instruments

Extech Instruments HD450 Manuale utente

Extech Instruments

Extech Instruments HD450-NIST Manuale utente

Extech Instruments

Extech Instruments 475040 Manuale utente

Extech Instruments

Extech Instruments HT200 Manuale utente

Extech Instruments

Extech Instruments CO230 Manuale utente

Manuali Strumento di misura popolari di altre marche

Suaoki

Suaoki D40 Manuale utente

Elster

Elster BK-G1.6 Manuale utente

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuale

Duratool

Duratool D03128 Manuale utente

Vega

Vega VEGAPULS 65 Manuale utente

Tonghui

Tonghui TH2618B Manuale utente

Tenmars

Tenmars TM-801 Manuale utente

MSR

MSR 145 Manuale utente

TPS

TPS WP-82 Manuale utente

ELMETRON

ELMETRON CP-511 Manuale utente

PCB Piezotronics

PCB Piezotronics 003C30 Manuale utente

Tenma

Tenma 72-10465 Manuale utente

Endress+Hauser

Endress+Hauser Proline Promag 50 Specifiche tecniche

Siemens

Siemens SITRANS F Coriolis FCT030 Manuale elenco delle parti

KLINGER

KLINGER CMF V Series Manuale utente

EXFO

EXFO FTB-2 Manuale operativo e di manutenzione

Keysight

Keysight M8290A Manuale utente

ADTEK

ADTEK MW-5 Manuale utente