3M DL manual

3M Per sonal S afet y Division 3M TM SoundPro SE/DL Series Sound Level Meters SoundPro User Manual[...]

Models SE a nd DL 3M TM SoundPro Sound Lev el Meter Dangers, W arnings, Cautions & B atter y Danger! Failure to observe the following pr ocedures may result in serious personal injury • Not for use in explosive or ha zardous locations. This pr oduct is not intrinsically safe. Warning! Failure to observe the following pr ocedures could damage [...]

ii Table of Contents Models SE a nd DL T AB LE OF CON TENTS Introduction .............................................................................................................. 1 Models and options .................................................................................................. 1 Frequency resolution .......................[...]

iii T able of Conte nts Models SE a nd DL Check ing or changi ng type .................................................................................................. 15 Using po wer supp ly or auto adapter ..................................................................................... 17 Turning on .........................................[...]

iv Table of Contents Models SE a nd DL Setti ng up auto - run ................................................................................................ 38 Date sett ing ........................................................................................................................... 38 Days of week s etting .........................[...]

v Table of Contents Models SE a nd DL Measurem ent range .............................................................................................................. 60 Calibrate .................................................................................................................. 61 Calibrat ion screen ...............................[...]

vi Table of Contents Models SE a nd DL Impuls e noise .................................................................................................................. 79 Reverberat ion optio ns ........................................................................................................... 80 Setting up r everberat ion ................[...]

v ii Table of Conte nts Models SE a nd DL Conductin g a leve l setup (f or STI - PA) ................................................................................ 103 Running a s peech intelligib ility stu dy .................................................................................. 103 STI - PA res ults sc reens ........................[...]

viii T able of Co ntents Models SE a nd DL DC out put ............................................................................................................................ 123 Specifications ....................................................................................................... 125 Conformance to standards ...................[...]

ix T able of Contents Models SE a nd DL Logging (optional) ................................................................................................ 133 Part numbers ........................................................................................................ 13 3 Replacem ent parts ................................................[...]

x Table of C ontents Models SE a nd DL Figure 4 - 2: Setting Date parameter s for A uto - Run #1 .................................................................. 39 Figure 4 - 3: Example of s etting up A uto - Run (QSP- II) ................................................................... 40 Figure 4 - 4: Day of the Week (DOW) setup ...........[...]

xi Table of Con tents Models SE a nd DL Figure 6 - 17: Curv e results ................................................................................................................. 97 Figure 6 - 18: Measurement typ e selection (STI PA) ........................................................................ 101 Figure 6 - 19: STI- PA setup scr e[...]

xii T able of Conte nts Models SE a nd DL This page left blank i ntentionally[...]

1 Models and opt io ns Octave bands Models SE a nd DL Introduc tion The SoundPro S E and D L series of sound level met er s (SLM ) from 3M are advance d instruments w ith high ly adapta ble character istics. T his manual ex plains the feature s and function s of all m odels in t he series an d points ou t distin ctions betw een the models. Models a[...]

2 Frequenc y resolut ion Octave bands Models SE a nd DL Frequency resolution The sounds we hear are rar ely pure ton es at a sing le freque ncy but rat her a m ixt ure of frequencies of v arying am plitudes. Some sounds , such as a whist le or a horn, h ave fr equencies concentrat ed in relat ivel y narrow reg ions of th e audio spect rum, whic h r[...]

3 Frequenc y resolut ion Third - oct ave bands Models SE a nd DL Third -octave bands Each oct ave band ca n be div ided into thr ee adjacen t bands c alled th ird - octave ba nd . Becaus e of the lo garithm ic relations hip bet ween adjac ent bands, the c enter f requenci es of third - oc tave bands diff er from eac h ot her by 26%. For exam ple, t[...]

4 Frequenc y resolut ion Naming bands Models SE a nd DL Exact Center Frequency (Hz) Names of Octave Bands (Hz ) Names of Third - octave Bands (Hz ) 12.589 12.5 15.849 16 16 19.953 20 25.119 25 31.623 31.5 31.5 39.811 40 50.119 50 63.096 63 63 79.433 80 100.00 100 125.89 125 125 158.49 160 199.53 200 251.19 250 250 316.23 315 398.11 400 501.19 500 5[...]

5 Logging ex plain ed Analysis t ype Models SE a nd DL Analysis type All Soun dPro SE/DL instrum ents are c apable of an alyzing s ound signa ls over the full ba ndwidth of the ins trum ent also refer red to as “ broadband meas urement ” . If your instr ument com es equipped with a filt er, it can p erform an octave or a third - octav e anal ys[...]

6 Physical C haracter istics Hardware interfaces Models SE a nd DL both num ericall y and graphic ally. This is explai ned in fur ther deta il in Chapter 2, “ The D isplay an d keypad”). Hardware interf aces The Har dware Inter f ace Pa nel, sho wn in Figure 1 - 4 , is loc ated under a hinged co ver in the base of the instrum ent. T he cover ca[...]

7 Physical C haracter istics Hardw are interfaces Models SE a nd DL AC/DC port Connect a c able wit h a standard 3.5 mm stereo plu g to this j ack t o obtain AC and DC ou tput sign als. Use rs are res ponsible f or provi ding their o wn cable. Power j ack DC power can be del ivered to th e instrum ent throug h the Po wer jack . Po wer will be tak e[...]

8 Inform ation screen Screen contents Models SE a nd DL Information screen Every Sou ndPro SE/ DL ins trum ent describes its u nique c haracterist ics in its Inform ation screen. In the Start screen, press to select Unit Inf o, then press . T he Unit I nfo sc reen appear s (Figure 1 -5 ). Figure 1 -5 : The Unit Informati on screen Screen contents T[...]

9 Detection Ma nagem ent Software DMS DMS Start P age Models SE a nd DL Detection Management Software DMS 3M™ Detection Management Software DMS is used to record, report, chart and analyze data collected for assessment of select occupational health hazards in the workplace. Des igned for dosimetry, sound level measurements, heat stress assessment[...]

10 Detection M anagem ent Soft ware DMS DMS Start P age Models SE a nd DL This page l eft int e nti on ally bl ank[...]

11 Checking the eq uipm ent DMS Start P age Models SE a nd DL Getting Star ted This c hapter provides the bas ic inform ation you nee d to “get up and go” essentia lly right out of the box, incl uding gett ing your f irst glim pses of SPL. Checking the equipment If y our ins trum ent was sent to yo u in a s torage cas e, you will want to rem ov[...]

12 Microphone and acc essories Installing the preamp Models SE a nd DL Installing the preamp The pream plifier is detacha ble for storag e purposes or if you wish to c onnect an extens ion cable f or dista nce m onitoring.  Connecting to th e instrument Place the preamp c onnecto r over the m ating conn ector at the top of th e instrum ent. Gent[...]

13 Microphone and acc essories Class/Type 1 and Class/Type 2 instrument Models SE a nd DL Class/Type 1 and Class /Type 2 instrument The SoundPro is shippe d w ith the Type 1 in a protectiv e case with a ser ial number labeled on th e side of t he microphon e. Simi larly, the S oundPro w ith the Cl ass/Ty pe 2 microphone is also shipped in a protect[...]

14 Providing po wer Installing Batteri es Models SE a nd DL Providing power You can power the instrument with internal batteries or from an external power source . There are two optional sources which include a universal power supply 9V/.66A 2.1 mm and an auto DC jack cable 12V. (See Optional Parts, i n Appendix A for more details.) Installing Batt[...]

15 Providing po wer Battery power explained Models SE a nd DL 5. Press the t op edge of the lid to s nap it i nto the latch . 6. Verif y or set the t y pe in the Battery Chec k sc reen . ( See the next sect ion “C hecking batt ery po wer”.) Battery power explained The batter y check screen is used to det ermine the batter y/power status of the [...]

16 Provi d ing powe r Checking or changing type Models SE a nd DL  B atter y Check screen 1. Turn on the SoundPro SE/DL by pressing On/Off/E SC . You will be at the start screen . • If turned on, ensure you are at the start screen by pressing On/Off/Esc repeatedly until the start screen appears. Figure 2 - 6: Sele cting Setup in the Start Scre[...]

17 Providing po wer Using power supply or auto adapter Models SE a nd DL Using power supply or auto adapter If you obtained the optional Universal power su pply 9V cable or the Auto DC Jack 12 VDC adapter fr om 3M , plug them into their respective power sources and the other end into the Power jack of the instrument. If the external power source pr[...]

18 Turning on Start screen and t he keypad Models SE a nd DL Turning on 1. To turn on t he Sound Pro, pres s the On/Off/E sc ke y until the star t screen app ears. Start screen and the key pad The Start s creen is the first s creen you see when y ou power on and the l ast screen you see whe n you shut d own. T his essenti al main sc reen is a lso u[...]

19 Sound Pro funct ionalit y The keypad ex plained Models SE a nd DL SoundPro functionality The keypad explained The Soun dPro SE/DL ke ypad consists of three g eneral types of ke y s: sof t - ke y s, nav igation k eys and ded icated k eys. Ke ypa d Explanat ion 1. Displa y Used to v iew data, m enus, and various indicators . 2. Backligh t Used to [...]

20 SoundPro functional ity Indicators explained Models SE a nd DL Indicators explained Status inf ormat ion is provid ed by the instrum ent at the top of the dis play. Below is a summ ary of all of the indicat ors. Icon Significan ce Batter y charge status . This icon s hows the s tatus/lev el of the batteries. A full batt ery indi cates one of the[...]

21 Turning of f Navigating Models SE a nd DL Na vigating To navigate to m enus and data s creens, the up/down arrow s and left/right arr ow s are primar ily used . The On/Off Esc button is also used as a navigati onal tool at an y time you wish to m ove back one lev el . I f yo u press ESC repe atedl y, y ou will r eturn to the s tart sc reen. Turn[...]

22 Turni ng off Navigating Models SE a nd DL This pag e left bl ank i nt ention ally[...]

23 Basic s etups Navigating Models SE a nd DL Basic setups This c hapter covers the bas ic features and setups of Sound Pro SE/D L that establish t he instrum ent’s o perating co nditions . For infor mation abo ut the mor e advanced Soun dPro SE/D L features and their s etups, se e Chapter 4 , “Advanced setups.” F or inf or m ation on settin [...]

24 Basic s etups Changing microphone s ettings Models SE a nd DL Changing microphone s ettings  M icrophone setting s This pr ocedure a pplies onl y to Class /T y pe 1 m odels. 1. Turn on the SoundPr o SE/ DL b y pressing On/Off/E sc . • If turned o n, ensur e you ar e at the star t scree n by pres sing On/Off/E sc repeat edly until you return[...]

25 Basic setu ps Time and date Models SE a nd DL 6. Press Enter . The result will be one of the following: • For Sensitivity and Range Cap fields - The highlighting moves to the data field. Press Up/Down ar rows to change the value. • Polarization field - Polarization r emains highlighted. Continue to press Enter to change (or toggle) the value[...]

26 Basic setu ps Measurement type (SLM, 1/1, 1/3, STI - PA, RT60) Models SE a nd DL  NOTE: To move to betw een the tim e, day, da y fields, p ress Enter r epeatedl y until one of these fi elds are hi ghlighted and then pr ess Up/Do wn arrow to m ove between the fields . 5. I f yo u’ r e f inished wor king in the T ime - D ate screen, pre ss On[...]

27 Basic s etups Meter 1/Meter 2 Parameters (i.e. response time, weighti ng) Models SE a nd DL Mete r 1/Meter 2 Parameters (i .e. response time , weighting) Setting up Meter 1 and Meter 2 parameter settings are changed through the softkeys and the Measure Set screen of the SoundPro.  Setting up Meter 1 and/or Meter 2 parameters 1. Ensure you are[...]

28 Basic set ups Measurement setup (for community noise) Models SE a nd DL 1 2  NOTE: For quic k and easy ac cess, there are three optional scre ens to change the timed r esponse and t he weight ing. These are in th e following S oundPro screens: M easures Set screen, View Current Study s creen, and Vi ew Sessio n stu dy screen. Measurement s et[...]

29 Basic set ups Measurement setup (for community noise) Models SE a nd DL • CNEL – Press Enter to select data fie ld. P ress Enter repeated ly to togg le betwe en On/Off setting. • L c-a – Press Enter t o select data field . If m arked “N/A,” see “ C- A meas urement setti ngs.” • T AK T M X ~ Press Enter one or m ore tim es to se[...]

30 Basic set ups Measurement setup (for community noise) Models SE a nd DL C- A measurement setti ngs The C - A m easurem ent is deter mined fr om concur rent m easurements of the SPL b y both meters . It can onl y be m ade if certain settings f or Meter 1 an d Meter 2 are com patible. If any incom patibil ity exists, t he L c-a s e lecti on in thi[...]

31 Logging Logging options Models SE a nd DL Logging Logging options If the logging opt ion was purchased, you wil l have the follo wing four types of meas urement optio ns: Figure 3-7 : Logged Data Chart exampl e • Average ( AVG on the dis p l a y) , Peak , Maxim um (MAX on the displ ay) , Minim um (MIN on the d is pl a y).  NOTE: When loggin[...]

32 Logging Setting logging options Models SE a nd DL Setting logging options To set logging onl y options (Average, Peak, Maximum , Minimum )  Enabli ng or disabling logging op ti ons 1. Ensure you are at t he start s creen. • If turned o n, repeat edly pre ss O n/Off/E sc until you return t o the start sc reen (see Fi gure 3 - 3 ab ove). • [...]

33 Setting up displa y options Setting logging options Models SE a nd DL 6. Press E nter to m ove to the data field . If it is O ff and you want to set a percenta ge, pres s Enter repea ted l y unti l a percent age app ears . To disable, r epeatedl y press Enter un til “ Off ” appears . a. To c hange the perc en tage, repeat ed l y press Up/Dow[...]

34 Setting up displa y options Language Models SE a nd DL Language You can c hoose a dif ferent language f or the disp layed text. A ch ange in lan - guage tak es eff ect when yo u exit the Language sc reen.  Cha nging the la nguage 1. Ensur e you are at the s tart screen. • If turned o n, repeat edly pre ss O n/Off/ESC until you return to t h[...]

35 Setting up displa y options Backlight Models SE a nd DL LANGUAGE CONTRAST BACKLIGHT Backlight Backlight Typically, the SoundPro is shipped with the backlight setting enabled. With a quick press of the backlight button from the keypad, you can quickly turn on and turn off the back light. The backlight feature has an optional timed setting for var[...]

36 Setting up displa y options Contrast Models SE a nd DL 7. To set the backlight, press the backlight button on the keypad. Contrast The cont rast adjustm ent af fects all pixe ls in th e LCD sc reen. Choose a level that look s best to you.  NOTE : If the cont rast le vel is set too high, icons an d the RunT ime clock i n the Status Region of t[...]

37 Models SE a nd DL Advan ced set ups This c hapter covers the Sound Pro m odels SE and D L feat ures listed b elow, all of whic h provid e capabil ities be yond the es sential o nes requir ed for bas ic model s etup and bas ic sound m easurem ent. For inf orm ation about basic SoundPr o models S E and DL f eatures a nd setups, s ee Chapter 3, “[...]

38 Auto - Run Date setting Models SE a nd DL Auto-Run SoundPr o SE/DL h as four autom atic run m odes which include: Date auto - start with duration, D ay of t he Week auto - start with duration, T imed R un (duration o nly sett ing), and Level Tr iggered Runs (or Lev el auto - start runs). Setting up auto-r un All A uto - Run set ups begi n in the[...]

39 Setting up au to - run Date setting Models SE a nd DL 5. Press one of the four s of tk e ys in t he Auto - Run Date scr een to assign a number ed setting (i .e., “Aut o - Run #1).  NOTE: if setting up for the first t ime, the Dat e screen will appe ar as “Auto - Ru n ” “Off ”. To t urn on Au to - Run # 1, # 2, #3, or #4, select th e[...]

40 Setting up auto - run Days of week s etting Models SE a nd DL  NOTE: To enable Aut o - run, ensur e the instr ument is p owered off and the date and time sett ings were progr ammed for th e future. 10. W hen powered of f, an Auto -R un sh utdown sc reen will a ppear. (P lease see sectio n, “Auto - Ru n shutdown s creen ” .) Days of week s[...]

41 Setting up auto - run Days of week s etting Models SE a nd DL 5. To s et the Days , pr ess Enter to m ove bet ween the fie lds. To program a day, press Up/Down to s e lec t a da y setting. T he first character of the da y will appear when se lected. • The Da ys field is or ganized in the follo wing sequ ence: Sunda y (S), Monday ( M), Tuesda y[...]

42 Setting up auto - run Aut o - run shutdow n screen Models SE a nd DL Auto-run shutdo wn screen W hen either the Dat e mode or the Date of the W eek (DOW ) settings is enabled an d you po wer down t he instr ument, you will be alerte d b y an Auto - Run Shut down scr een just bef ore the ins trument tur ns of f. This sc reen, illustrate d bel ow [...]

43 Setting up auto - run Timed run sett ing Models SE a nd DL Timed run setting In Tim ed Run m ode, you progr am the inst rument’s duration ( or timed run) and then m anuall y start your s tudy, wh ich can be applied as man y tim es as you wish. The auto - r un will en d when the duration ex pires.  Viewing or c hanging the Timed Run setup 1.[...]

44 Setting up auto - run Level - triggered auto - on set ting Models SE a nd DL Level-triggered auto-on setting The level - tr iggered s creen c ontains m eter 1 param eters which in clude a Filter m ode, Freque ncy le vel, “Level O n” and “ Level O ff” m odes, and a specif ication for eit her run/s top or run/p ause m odes.  Viewing or [...]

45 Setting up aut o - run Level - triggered auto - on set ting Models SE a nd DL Level - Triggered Expla n ation of S ettings B. A ct ion After s electing specific f ilter mode sett ings, the i nstrument is set to trigger based on Run/Pause mode or Run /St op mode. C. Source The source can be set to Meter 1, M eter 2, fil t ers, c urve, external tr[...]

46 Locking setup or run m ode Setting secure run or secure setup (locking) Models SE a nd DL 10. T o activate Triggered R un on the Meter 2 , press th e right arro w and select o ne of the f ive sources by press ing Enter repea tedly unt i l yo u are view ing the appr opriate f eature. (If you are only settin g Meter 1, please sk ip this step .) 11[...]

47 Locking setup or run m ode Setting secure run or secure setup (locking) Models SE a nd DL  Setting secure run or secure setup (locking) 1. From the start screen, press the Lock softk ey. Figure 4-8 : Secure/ L ock option 2. In the Lock s creen, ther e are two sel ectable f ields: • Secure R u n Mode with a status lin e • Secure Set up M o[...]

48 Locking setup or run m ode Setting secure run or secure setup (locking) Models SE a nd DL 3. (Skip th is step if securin g setup an d see step 4. ) To set S ecure Run M ode , press En ter and “ 000 0 ” will a ppear.  NOTE: if you want t o set the cod e as “00 00,” press Enter repeated ly until “e nabled” a ppears. T his will be th[...]

49 Locking setup or run m ode Disabling secure run or secure setup (unlocking) Models SE a nd DL 4. To s et Secure S etup M ode , ensure it is highlighte d by press ing D own arrow. Onc e selecte d, pres s Enter and “ 0000 ” wil l appear . ( See Figure 4- 10 for a s creen ex ample.) (Also, y ou must be in stop m ode.) • To selec t a numer ic [...]

50 Digital outputs /Trig gering Tracking runs Models SE a nd DL Digital outputs/Tr iggering All digita l output s ignals (a lso ref erred to as “ Trigg ering ”) appear on p ins of the Auxiliar y Port (“Auxiliar y por t” on page 7 ) . Manage these dig ital outputs in the Ext - Tr igger screen. Tracking runs The instr ument c an be conf igure[...]

51 Comm unications Digital outputs and SPL Models SE a nd DL Digital outputs and SP L The instr ument c an also be c onfigured to use a dig ital outp ut to signal if the current S PL meas urements ex ceeds a sp ecified le vel.  Managing SPL d i gital outputs (See Figure 4 - 13 above) 1. Open t he Digital - Out s creen, b y selecting Setup f rom [...]

52 Comm unications QSP/Serial Models SE a nd DL QSP/Seri al (Figure 4-14 ). For QS P - II communications, USB s hould be set to “QSP/Serial”. The RS - 232 channel should be turned off for low power consumption. Figure 4-14 : QSP/S erial Mass Storage W hen the USB channel is set for Mass Storage mode the user will have direct access to the instr[...]

53 Comm unications Viewing real - time measurements remotel y Models SE a nd DL  USB communica tions 1. If a session is running, stop it. 2. In the Start screen, press to select Setup , then press . The Setup screen appears. 3. In the Setup screen, press the arrow key s to select Comm Set , then press and the Comm - Set screen appears. 4. USB sh[...]

54 Comm unications GPS Models SE a nd DL GPS The SoundPro has the cap abilit y of em bedding GPS inf ormation i nto stud y headers . To interf ace a GPS, you need a G PS rece iver with RS - 232 comm uni cations that c onfor m to NMEA 0183 vers ion 2 and t he optional 053 - 729 Serial Cable. In m any cas es, a Male - Mal e DB - 9 null m odem connec [...]

55 C ommunic ations GPS Models SE a nd DL • Status line - This data fi eld at the right on this line tells y ou whether GPS is enabled or not. You may see “No Fix” below this line, which tells you that, although enabled, the instrument is not receiving the satellite signal. • Pos i tion line - W hen the satellite signal is being received, t[...]

56 Comm unications GPS Models SE a nd DL This pa ge left blank i nten tionally[...]

57 Virtual meter s Meter 1/Meter 2 explained Models SE a nd DL Prep ari ng t o meas ure & r unni ng This c hapter explai ns the steps needed to prepare th e Sound Pro for meas uring and how to run m easur ements. It will a lso sho w you sam ple meas urement res ult screen s and expla in the cont ents of t he screens. Virtual m eters SoundPro SE[...]

58 Overview of running a s ession/s tudy Meter 1/Meter 2 explained Models SE a nd DL Overview of running a se ssion/ study The list belo w is a brief ove rview of the steps for runni ng a stud y. Quick Help L ist 1. Turn the So undPro on and c heck y our batter y power. ( See Cha pter 1). 2. Format t he card or de lete s ession fil es from the Soun[...]

59 Preparing to m easure Sessions and St udies Models SE a nd DL Preparing to measure Sessions and S tudies B efore you begin running a session/ study, there are a couple items to consider: • Understanding s essions and s tudies • Adjusting the m easurement range before running a study • Calibrating the instrumen t The following components ex[...]

60 Preparing to m easure Measurement range Models SE a nd DL Measurement range You select t he deci bel range bef ore run ning the f irst stud y in the ses sion. Setting the meas urement range helps k eep the d esired m easurem ents within the linear r ange of operatio n. If you do n’t m ake an opti mal range s election, low levels of sound ca n [...]

61 Calibrate Calibration screen Models SE a nd DL Calibrate 3M recom mends c alibrating your V erifier b efore you r un a ST I - PA meas urement and af ter to ensur e highl y accurate m easurem ent results. The m icrophone shou ld be c alibrated bef ore use f or a num ber of reas ons. First, the m icrophon e is sens itive to hum idity an d press ur[...]

62 Calibr ate Performing a calibration Models SE a nd DL calibrate during a pause, the new calibration results replace the previous Post - Calibration results without affecting the Pre - Calibration results. You will not see Post - Calibration results if a pre - calibration was performed but not followed by a Post - Calibration. Performing a calibr[...]

63 Calibrate Performing a calibration Models SE a nd DL Figure 5-3 : Setting pre - cal scre en 6. Allow the measure ment to stab ilize and then press A rrow s to se t 114.0 dB level. 7. Press Enter t o store the new calibr ation . The Cal ibration History scr een will appear w ith the new calibratio n values in the display. Figure 5-4 : Calibration[...]

64 Running a ses sion/s tudy Performing a calibration Models SE a nd DL Figure 5-5 : Post -Calibrate hi s tory scre en Running a session /study You run a “ session ”, com monl y called open ing a sessi on , b y r unning (or starting ) t he first m easurement . To run a “stud y”, you would pr ess paus e and then proc eed in th e run mode. T [...]

65 Measurem ent navigation Using softkeys in measurement screens Models SE a nd DL  NOTE: The Lookup softkey i s used to cha nge the meas uremen t options. There are five select ions whic h include: SPL, Leq , Lpk, Lmax , Lmin .(S ee “C hangin g displayed m easur ement” for m ore infor mation, o n page 6 6 .) Measurement navigat ion You can [...]

66 Measurem ent navigation Using softkeys in measurement screens Models SE a nd DL softkeys , t he menus ar e visibl e in Softkey Region (i. e., “Cal” for Calibr ation men u). If necessary , press the Al ternate Functions key ( ) t o toggle the contents of the Softkey Reg ion. Changing displayed meas urement You can chan ge the di spl a yed m e[...]

67 Measurem ent scr een ic ons Descriptor types Models SE a nd DL options, please see “Measurement type” on page 26 and “Meter 1/Meter 2 parameters” on page 27.) Measurement scr een icons Th e measurement s creen des cript ors and icons identify cert ain conditions that exist currently in the dis play. Press (Alt ernate Funct ions key ) to [...]

68 Measurem ent scr eens Bar Chart and Filtered Bar Chart Models SE a nd DL Measurement scr eens Bar Chart and F iltered Bar Chart The first screen you’ll see in a viewing area contains a bar chart for broadband or filtered measurements. Fo r the bar chart screen , the amplitude of the displayed measurement is shown both graphically by the length[...]

69 Measurem ent scr eens Community Noise s creen Models SE a nd DL  Making ch anges to the Bar C hart or Filtered Ba r Ch art screen 1. T he Range - The scal e, shown abov e the chart , is fix ed and cannot b e changed in the run or pause m ode (or if yo u are view ing past stu dies). If t he sessi on i s in stop mode (or closed) , pres s to cha[...]

70 Measurem ent scr eens Dosimetry screen Models SE a nd DL Dosimetry scre en The Dosimetry screen provides several types of measurements of the accumu - lated personal exposure to noise. See “ Setting logging options” on page 32 for details. Figure 5- 11 : Dosim etr y screen Dosimet r y measurements Dosimetry measurements depend upon the run t[...]

71 Measurem ent scr eens Tabulation sc reens Models SE a nd DL Tabulation s creens Th e Tabulation scr een shows m easur ements for two broadb and meas urements and f or all t he bands f or the select ed anal ysis type. For octave an alysis, all bands a re visible in a single tabulati on screen. W hen viewing t hird - octav e anal y sis, however, i[...]

72 Time Histor y/Back - er ase screen Tabulation sc reens Models SE a nd DL Time History /Back - erase s creen W hen conducting a br oadband s tudy, you can vie w as m uch as the last 20 sec onds of Max S PL in th is screen. T he current M ax appear s at the right border of t he Tim e Log cha rt (tim e=0) and advances , in on e - second increm ents[...]

73 Back - erasing R esults of back - erasing Models SE a nd DL Results of back-eras ing Back erasing causes the fol lowing chang es to the s tudy a nd to the ses sio n in which the s tudy occ urs. • Run times - The run tim e of the back - eras ed study is shor tened b y the durati on of the r emoved s egment. T he run tim e of the ses sion is als[...]

74 Back - erasing Results of back - erasing Models SE a nd DL • Duration - The length, i n tim e, of the segm ent to be bac k - erased is given in the Softk ey Region of the dis play. Figure 5-14 : Time Log screen 4. You can adj ust the T ime Line b y pres sing . 5. W hen you have the Tim e Line in pos ition , press . The T ime Line disappears an[...]

75 Back - erasing Stopping a s ession Models SE a nd DL Stopping a session You can s top the ses sion m anually or w ith a trigger c omm and, but onl y when the instrum ent is in the Pau se state. W hen the ses sion is stopp ed, the Sto p icon , appears in the St atus Area and the Ru nTim e clock is zeroed. For inform ation about us ing trig gers, [...]

76 Back - erasing Stopping a s ession Models SE a nd DL This p age le ft blan k i ntenti onal l y[...]

77 Additional o ptions Reverberation Models SE a nd DL RT60, Cu rves , and STI- PA Additional options In this c hapter, it is importa nt to note t hat these f eatures are addition al add - on options a nd ma y not be av ailable on your Sound Pro m odel unless you speci fica lly purchas ed thes e features. Please see 3 M’s website 3m.com/detection[...]

78 Additional o ptions Reverberation ti me (RT60) Models SE a nd DL Reverberation time (RT60 ) Reverb eration time is a measureme nt used to ev aluate an d measure sound decay in a specific space, tai lored to sp eech or mus ic, such as: class rooms, audit oriums, gymnasiu ms, concert halls/the atres, (et c..). For ro om acoustic, r esults ar e use[...]

79 Additional o ptions Reverberation (RT60) methods Models SE a nd DL Interr upt ed noise The Interrupted noise method, applied with pink noise, is used with a portable sound system, such as a dodecahedral speaker, or with an existing sound sys tem (only recommended if the sound system has a quality, omni - directional, sound system .) W ith the in[...]

80 Additional o ptions Reverberati on options Models SE a nd DL Reverberation options The f ollowing setup options are selec table via th e Reverb eration Time Options Set up menu ( displa yed in Figure 6 - 3) . Table 6- 1: Re ve rb eration time set - up optio ns Field Description Explanation of field selecti ons M ethod - Select ing t he calculati[...]

81 Additional o ptions Setting up reverberation Models SE a nd DL Setting up reverberation The Reverb Time screen is used to change or view your reverberation settings. The steps below outline how to change the parameters. Please review Table 6- 1: “ Reverb time set - up options ” for an explanation of parameters . 1. From the s tart scr een, s[...]

82 Additional o ptions Running reverberation test Models SE a nd DL Running reverberation tes t There are a couple factors to consider when conducting a reverberation test. Depending on if you will be measuring voice in a room, hall, theatre (etc..), ISO 3382 standard recommends measuring reverberation time for speech from 63 HZ to 4 kHz. However f[...]

83 Additional o ptions Rever beration results Models SE a nd DL 3. Select RT 60 as th e meas urem ent mode f rom the Start sc reen. Figure 6- 4: Reverb T ime Setup screen 4. , P le ase choose one of the follow ing methods t o condu ct your tes t: • Interr upted Method : Pump nois e through r oom with existing s ound system or a portab le sound s [...]

84 Additional o ptions Reverberation results Models SE a nd DL studies, you ma y wan t to revie w the data at the end of the ses sion. In t his exam ple, you woul d access t he File S ession Data F ile s creen and s elect a past stud y. (For m ore inform ation, see “ Viewin g past ses sions/stud ies” in Chapter 7 .) RT60 summar y screen Thi[...]

85 Additional o ptions Reverberation results Models SE a nd DL 2. Select th e band to b e delet ed (b y pressing lef t or right arrows.) 3. Press the D elete s oftke y. (Repeat steps if you wish to delete more bands.) Decay curve scr een This c hart displa ys the (aver age or ensem ble) res ults of a single Re verb Decay cur ve from the study ( i.e[...]

86 Additional o ptions Reverberation r es ul ts Models SE a nd DL Tabular RT 60 screen This is a tab le - form atted scr een which deta ils a sum mar y of the Reverb Deca y Curve of each band . The foll owing tab le is a br ief summ ary of the tab ular data. Table 6- 2: Tabular R T60 field exp lanation Figure 6- 7: Tabular o ctave filt ering RT sc [...]

87 Curves Captured curve applications Models SE a nd DL Curves Curves , also referr ed to as “Acoustic S pectral Cur ves ”, is us ed to evalua te the qualit y of noise in new or existing b uildings. The Sou ndPro m odels SE and DL sup port the f ollowin g: • Captured c urves • Noise Cr iterion cur ves: NC curves, PNC curves, NCB curves, NR [...]

88 Captured curv es Setting up capt ured curves Models SE a nd DL Setting up captured curves  Setting up Captur ed Cur ves Settings and mea surement se ttings 1. From the start screen, select either 1/1 octave or 1/3 octav e for the measurement type. (Repeatedly press first softkey.) Figure 6-8 : Select ing measurement type for c urves 2. Next, [...]

89 Captured curv es Setting up capt ured curves Models SE a nd DL • Evaluation M ode: evaluates the nois e levels against specific criterion. This is primarily used when you are capturing one to four different curves. W ith this option, you assign a Capture name ( Cap - 1, Cap - 2, Cap - 3, Cap -4 ) in the setup menu and then run a captured curve[...]

90 Captur ed c urves Running captured curves Models SE a nd DL Running captured curv es Capturing a curve a llows you to take a s napshot of the current octave no ise profile. O nce the c aptured c urve is selec t ed and appli ed, the Sou ndPro w ill automat i cally calcu late the captured cur ve res ults with the STI - PA meas urement. 1. From the[...]

91 Criterion c urve fam ilies Type s of Criterion Curves Models SE a nd DL Figure 6- 11 : Capt uring a cur ve (CAP - 1) b. Evaluatio n m o d e : to capture a curve, th e curve i ndicators will appear before an d during your run. It will autom aticall y save the r un wit h curve ind icators an d assign the nam e you applied during th e Options setup[...]

92 Criterion c urve fam ilies Setting up criteri on curves Models SE a nd DL • Preferred N oise Criterion Curves (PNC) – uses a tangenc y method bu t accounts f or lower frequenc ies com pared with the NC m ethod. • Room Criteri on Curves (RC) – calculates a num erical rating based on speech int erference a nd indic ates an y interferenc e [...]

93 Criterion c urve fam ilies Setting up criteri on curves Models SE a nd DL 3. Press On/Off/Esc t o return to t he start sc reen. 4. Select S etup (use up/do wn arrows to highlight ) and press Enter . 5. Select Options menu (use up/down arrows to highlight) and press Ente r . 6. Select Cu rves menu (use up/down arrows to highlight) and press Ente [...]

94 Audiom etric back ground curves Setting up audiometric back ground curves Models SE a nd DL Audiometric background curves The Soun dPro SE/DL series supports the follo wing two types of audiom etric test room sound lev el curve s: • Audiom e tric T est Room Background Sound Le vel Cur ves (OSHA) which com pares the ambient no ise readi ngs to [...]

95 Audiom etric back ground curves Setting up audiometric back ground curves Models SE a nd DL 2. Next, se lect the m easurem ent settings , by se lectin g View Session (use Up/Down Arrow to se lect) and pr ess Ente r . 3. Selec t the foll owing rec omm ended meter 1 settings us ing the softk eys using the s oftke y s: measurem ent to Leq, Slow res[...]

96 Running and vie wing c urves Curve m easurements and results Models SE a nd DL 10. (Sk ip this ste p if you se lected OSH A AM Boot h). To s elect a Cri terion , press the d own arr ow and r epeatedly pr ess Ente r . You have the following three setti ngs in t he testing ranges of 125Hz - k Hz, 250H z – 8kHz, and 500H z - 8k Hz octave or one -[...]

97 Running and viewing c urves Curve measurements and results Models SE a nd DL 3. To view your results, press Enter . The f ollowing screens appear. (a) S ample bar chart – displays 1/1 octave band with curve and sound values plotted on the spectrum. (See “a” below: A - selected band, B - curve indicator, C - amplitude in band). (b ) Tabular[...]

98 Speech Intellig ibility STI -P A testing Models SE a nd DL Speech Intelligibility Another a vailable add - on featur e is Speech Transmiss ion Index (STI) used to evaluate and classify speech int elligibility dependent of back ground noise level. ST I is the stand ardized me asurement i n the IEC 60 268 - 16:19 98 stan dard. STI -PA testing S TI[...]

99 Speech Intellig ibility Selecting S TI scale or CIS scal e Models SE a nd DL STI scale The scale i dentifies i f the mas s notificat ion syste m is intel ligible or unintellig ible base d on a STI sc ale rangi ng from 0. 0 to 1.0 w here 0.5 to 1 .0 is consider ed a passin g score, per NFPA 72 and IEC 60849 . Common Intel l igibili ty Scale (CIS)[...]

100 Speech Intellig ibility Con ducting a STI - P A test (overview of steps) Models SE a nd DL Conducting a STI - PA test ( overv iew of steps) 1. Calibrate the SoundPro. 2. Set - up yo ur STI - PA options via the” Measures” setup screen. (Select the measurement type as STI - PA .) 3. A level s etup is conducted. From a fi xed - point, the tech[...]

101 Speech Intellig ibility STI - PA setup Models SE a nd DL Post Proces s field An optiona l “ captured curv e ” feature can be applied to y our STI -PA testing. E ssentially, you tak e a snap s hot of the c urrent so und level measurement and store it as y our backgro und noise. Once the background n oise data is gather ed, you can ap ply the[...]

102 Speech Intellig ibility STI - PA setup Models SE a nd DL 6. To change the Scale f ield, press Up/Down arrows until Scale is highlighted and press Enter to change to ei ther STI or CIS . Figure 6-19 : STI - P A setup screen 7. To change the Gender field, press Up/D ow n arrows until Gender is highlighted and repeatedly press Enter to sele ct Mal[...]

103 Speech Intellig ibility Con ducting a level setu p (for STI - PA ) Models SE a nd DL Conducting a lev el setup (fo r STI - PA) • From a fixed - point, measure the A - weighted Sound Pressure Level of your mass notificati on system (or alarm system). W hen in the STI - PA screen, adjust the range as needed via the Up/Down Arrows. • The avera[...]

104 Speech Intellig ibility STI - PA results screens Models SE a nd DL 2. Play the signal over the loudspeaker and then locate y ourself in the appropriate zone/roo m . 3. Verify that the range setting is appropriate for the level being measured. It is desirable to select the longest range that does not overload. (To change the range, press Up/Down[...]

105 Speech Intellig ibility STI - PA results screens Models SE a nd DL STI - PA m odulation screen In the Modulation measurement screen , the average decibel level over the run - time in seven octave bands ranging from 125HZ to 8KHz with 14 frequencies is displayed in a tabular format. These values are the signal to noise ratio (accounts for any in[...]

106 Speech Intellig ibility STI - PA results screens Models SE a nd DL STI - PA modulation env el ope screen This screen reports a summary of the STI - PA modulation screen. 1. To v iew each ban d’s res ults, press A rro w k ey.  NOTE: The resul ts can be used to assess each frequency’ s band modul ation level to determine why it passed or f[...]

107 Speech In telligibi lity STI - PA results screens Models SE a nd DL 2. Setting up Curves: Se lect Set up and press Enter . • Select Opt ions (via the Down Arrow and press Ent er ). • Curves w ill be highlig hted, pre ss En ter . • Choose Surve y as the Mode and Captured (CAP) as the T ype and then press On/Of f/Esc repeated ly to return t[...]

108 Speech In telligibi lity STI - PA results screens Models SE a nd DL Figure 6- 26 : C aptured curv es/background noise 5. Once al l backgrou nd noise has been captur ed, refer to, “A pplying captur ed curv es” below. Applying captured curves f or STI - PA testing To apply the curves during a STI - PA measurement remember to complete one and [...]

109 Spee c h Intelligi bility STI - PA results screens Models SE a nd DL 4 . Press the Run/Stop ke y while playing the test signal in the appropriate location/zone. The captured curve will automatically calculate with the STI - PA results.  NOTE: press the left/right arrow to view the modulation screen and/or the modulation env elope screen if d[...]

110 Speech In telligibi lity STI - PA results screens Models SE a nd DL This page left blank intentional l y[...]

Fil es STI - PA results screens 111 Models SE a nd DL Viewing Past Measur e ments This c hapter explai ns how t o view y our past sessions and stud ies. It will also e xplain ho w to renam e your sessions/s tudies and ho w to c lear/reset t he data on the m emor y card. Files A session f ile is aut omaticall y created when you b egin the f irst stu[...]

File d irectories File directory screen explained 112 Models SE a nd DL automat i cally stor ed in the Session Direc tory, and Conf iguration Files ar e automat i cally stor ed in the Configuratio n Director y . The F il e dire ct ories screen c an be used to : • View past ses sions/s tudies via th e Sess ion Director y menu • View Conf igurati[...]

File d irectories Viewing past sessions/st udi es (revi ew mode) 113 Models SE a nd DL or sess ion via the Dat a File screen. T he results will be pla yed bac k (also called re view m ode ) in acc ordance wit h the anal ysis type tha t was se lected when the m easurem ents wer e stored. 1. From the S tart screen , press the F ile softkey. Figure 7-[...]

File d irectories Viewing past sessions/st udi es (revi ew mode) 114 Models SE a nd DL 3. In the D ata File s creen, pr ess Ar r ow s to se lect one of the saved sessions and press Enter (to loa d the file). Figure 7-4 : Data Fil e screen 4. I t wil l stat e “ L oaded ” . Pr ess either En ter or On/Off/Esc ke y. 5. In the Start s creen, th e re[...]

File d irectories Loading and deleting files 115 Models SE a nd DL 6. A bar chart or a filtered bar chart m ay appear (depending on your measurement setting). Press Enter to view various measurement screens. Figure 7-6 : V iewing past data example 7. Press Stop key to exit Review Mode. (The Pause icon will disappear leaving only the Stop indicator [...]

File d irectories Session direct ory 116 Models SE a nd DL 4. To delet e a file ( if not appl icable see step fi ve), pre ss to s elect appropriat e file an d press Delete sof tke y (see “ a ”) . (The displ ay will sta te the file was deleted .) Pres s ke y to return to th e Data Fi le screen. T o delet e m ore files, r epeat thi s step. Pr ess[...]

File d irectories Session direct ory 117 Models SE a nd DL Navigat i ng in a session/config. direct ory Press any arrow key to move around in the directory. If there are multiple files, press the Mor e softkey to navigate to additional screens. Press On/Off/Esc key to return to previous screen(s). Naming and r enam i ng files There are common proce[...]

Conf iguration d irector y Saving (& naming) setup file (config. fil e) 118 Models SE a nd DL • Add a character by pressing the right arrow key. • Delete a character by pressing the left arrow key. • Repeat this step as necessary. 5 . W hen finished, press and Save will appear. 6 . Press to save the file name (or press On/Of f/Es c to can[...]

Conf iguration d irector y Viewing, loading, delet ing set up files (conf ig.) 119 Models SE a nd DL 4. To c hange the file nam e f ollow below : • Press to change t he selected charact er (denot ed b y the underline) . • Optional Sh ortcut: press a softke y (has a charact er range) and then press to quic kly move t o the appropr iate v alue. ?[...]

Mem ory card Compatibility 120 Models SE a nd DL Memory card The memory card supplied with the instrument is used to store session and configuration fil es. If you run studies and sessions without a memory card, it will not store session files. In that case, running a session will automatically overwrite the information in the instrument’s memory[...]

Com m unicating with a PC U sing Detection M anagement Softw are DMS 121 Models SE a nd DL Commun icatin g This c hapter covers issues related to t he m emory card, the U SB port and the AC/DC outputs . Communicating w ith a PC Using Detection M anagement Software DMS When you download the data via the the download feature , the data is stored and [...]

AC/D C outpu t U sing Detection M anagement Softw are DMS 122 Models SE a nd DL DMS and working with S oundPro data  Viewi ng data and Data Finder Page 1. Com municat ing/con necti ng the Edge to the pc A. Tur n On the Soun d Pro . B. Plug i n USB ca bl e f rom SoundPro to pc . 3. SoundPr o and downl oadi n g A. Selec t the SLM family a nd t he [...]

AC/D C output AC output 123 Models SE a nd DL AC/DC outpu t Output signals are available at the AC/DC jack in the hardware interface panel at the base of the instrument (“Hardware interfaces” on page 6). Users are responsible for providing the cable to attach to this jack. For information about the pinout, see “AC/DC jack” on page 1 34. AC [...]

AC/D C output DC ou tput 124 Models SE a nd DL This page lef t blank intent i onally[...]

Appe ndix A 125 Models SE a nd DL Spe cific atio ns Conformance to s tandards Acoustics IEC 6167 2 - 1 (2003) (2 002 - 05) - Electr oacoustic s, Sound l evel m eters, Part 1: Specificat ions. IEC 6167 2 - 2 (2003 - 04) - Electr oac oustic s , Sou nd leve l m eter s , Part 2: Pat - tern eva luation tests . IEC 6126 0 (1995 - 08) - Electr oacoustics,[...]

Appe ndix A 126 Models SE a nd DL Size - 7.9 cm(W) X 28.2 cm (H ) X 4.1 cm (thick); (with prea mp and mi crophone) 3. 1" (W ) X 11.1" (H) X 1.6" (thi ck) (with preamp and microphone) • The width is meas ured across the face of the instrum ent. The l ength, which incl udes the pream plifier but not the micr ophone, is m easur ed alo[...]

Appe ndix A 127 Models SE a nd DL External pow er External DC power ma y be pr ovided to the Power j ack fr om the AC or DC sources identified be low. Po wer consum ption wi ll range f rom 1.0 - 1.5 W at 8- 16 VDC. • 8 VDC - 125 t o 190 m A. • 12 VDC - 8 5 to 125 m A. • 16 VDC - 6 0 to 90 m A. A C pow er source ~ O ptional s witching - t ype [...]

Appe ndix A 128 Models SE a nd DL Octave fi lters (optional ) Number of ba nds ~ Elev en bands, with center frequenc ies (f c ) ranging f rom 16 Hz to 16 k Hz. T he octave f ilters are f lat within < 0.3 dB in each p assband. The half - power points are a t 0.707 f c and 1.414 f c . Octave ski rts ~ W ith res pect to f c : • f c /2 frequenc ie[...]

Appe ndix A 129 Models SE a nd DL Humidity 10% to 90% RH (non c ondens ing). User interface Display Size - 1 28 x 64 p ixel displa y that m easures 6 c m x 4.8 cm (2.4" x 1.9 "). Lighting ~ Transf lective to tak e advantage of am bient lighting plus fiber optic back lighting that ca n be m anuall y operated or set to tur n off af ter a ti[...]

Appe ndix A 130 Models SE a nd DL denser (20 0 volts m ust be s et to “On”). U se for ge neral, high er - le vel, f ree - field m easurem ents. QE4150 - Free- fie ld, Class/ T y pe 1 (op tional) ½ - i nch di ameter ( .52"), con - denser (20 0 volts m ust be s et to “On”). U se for ge neral fr e e- field m easure - ments . QE4170 - Pr [...]

Appe ndix A 131 Models SE a nd DL Communicati ons ports Auxiliar y - For trigger signals and RS - 232 comm unication. USB - Min i USB conn ector. This port is used f or data and f ile transf ers between t he instrum ent and a p ersonal c omputer. Measurements Types SPL measu res - SPL, A ve rage val ue (L avg or L eq ) , Max imum value (L Mx ), Min[...]

Appe ndix A 132 Models SE a nd DL O ther Maxim um peak level - 3 dB o ver the ful l scale read ing. Calibration Pre - calibr ation - W hen perf ormed, valid pr ior to the s tart of a session. Post - calib ration - W hen per formed, val id for the pr evious s tudy in the s es - sion. Storage - Al l calibrati ons for a s ession ar e stored in the rel[...]

Appe ndix A 133 Models SE a nd DL Back - erase Erasin g - Up to 2 0 second s of s ampled SPL dat a can be r emoved f rom the end of t he last stud y. W hen removed, a ll calculati ons bas ed on the rem oved segm ent of data are imm ediately updated. Editing - The length of the back - erased s egment c an be edited. Storage - Data rem oved by back -[...]

Appe ndix A 134 Models SE a nd DL Optional parts Part Number Description 053 - 842 SoundPro S E/DL Class /Type 1 Q E4170 microp hone kit (Q E4170 microp hone and machined adapt er to preamp). 053 - 843 SoundPro S E/DL Class /Type 1 Q E4130 microp hone kit (Q E4130 microp hone, 056 - 990 micr ophone - to - ca libr a tor adapter and 059 - 344 winds c[...]

Appe ndix A 135 Models SE a nd DL Port pinouts AC/DC jack The pino ut for the jac k used f or the AC/DC signals is displ ay ed below in Figure A - 1. T his 3.5 m illimeter j ack is t he same t yp e of jack comm only used for s tereo outputs i n mus ic system s. Figure A - 1: Pinout for the AC/DC output jac k Auxiliary connector The auxil iary conn [...]

Appe ndix A 136 Models SE a nd DL Block Diagram for SoundPro[...]

Appendi x B 137 Models SE a nd DL Glos sary of Ter ms C-A The C - A m easurem ent is an S PL average that enhanc es the low - freque ncy com ponents of the sound s ignal. Figure B - 1: C - A wei ght ing r espons e curv e Center frequency The cent er frequenc y of eac h octave and t hird oc tave filter band. CNEL Comm unity Noise Exp osur e Level. T[...]

Appendi x B 138 Models SE a nd DL CT Criterion T ime. At the Criter ion Level, th e tim e period over which the r esulting dose is 100%. Usuall y is 8 hours. dB Sound Le vel Meters use the dec ibel as th e unit of measure k nown as So und Pres sure Leve l (SPL). S PL uses the r atio b etween a ref erence le vel of 20 m icroPas cals (.00 002 Pasc al[...]

Appendi x B 139 Models SE a nd DL Exceedanc e Level (L n) Exceeda nce levels r eprese nt the percen t of the r un time tha t was spe nt at or a bove the corres pondi ng dB leve l.  Example : An L40 equ al to 73 d B would m ean that f or 40% of the run tim e, the decibel lever w as equal to or hig her t han 73 dB.  Exceeda nce levels c an be s[...]

Appendi x B 140 Models SE a nd DL Exchang e Rate of 3 dB. Th e displa y will switch t o ExpHr s if RT IME is greater than 3600 seconds. Lev el (L FT ) Notation used to re present s ound press ure level m easurem ents in IEC /ISO notati on, where the meas urem ents are made with partic ular frequenc y (F ) and time ( T) res ponse param eters. For an[...]

Appendi x B 141 Models SE a nd DL LDN Represen ting the Da y/Nigh t sound le vel, this m easurem ent is a 24 - hour avera ge s ound le ve l where 10 d B is added t o all of the readin gs that occ ur bet ween 10pm and 7am . This is prim arily used in com m unity n oise regu lations w here there is a 10 dB “ penalt y ” for night tim e noise. T yp[...]

Appendi x B 142 Models SE a nd DL NCB (Balanced Noise C riterion Curv es ) This is the most recent incar nation of the curves based on Ber anek’s work (1987). This c urve famil y goes beyond a sim ple tangenc y method to tr y to ensur e a m ore neutral cha racteris tic to the no ise spectrum and als o accounts for speec h interf erence suc h as: [...]

Appendi x B 143 Models SE a nd DL T W A L avg E R log 2 P r t C T - - - - - - - - -     dB + = PTW A This is a projected TW A determined for a projected t ime (Prt) i n relation t o the Crit erion Tim e (CT ) as f oll ows . Peak –C The f ollowing char t illustrat es the ra nge of Sou nd Lev el with C - weight ed Peak. Level Range (dB)[...]

Appendi x B 144 Models SE a nd DL Respon se time ( F,S, I ) Selectab le time r esponse s ettings used in Soun dPro SE/DL m easur ements . The respons e time is a standardi zed expo nential tim e weight ing of th e input sign al accor ding to f ast (F), slow (S) or impuls e (I) tim e response re lationships . Time r esponse c an be des cribed with a[...]

Appendi x B 145 Models SE a nd DL Figure B- 4: Impulse res ponse t o a tone b urst Room Criteri on Curves (RC) Room Criterion cur ve’s was introduced in 1981 b y Blazier to primar ily rate noise in off ices/room ac oustics. T his methodo logy calc ulates a num erica l rating bas ed on s peech interferenc e and in dicates any interf erence suc h a[...]

Appendi x B 146 Models SE a nd DL Taktm x A time av erage over a s ampli ng interva l that us es the highes t level oc curring dur ing the preceding T aktm aximal Inter val, either t hree or f ive sec onds, and ass umes t hat it was present f or the who le Tak tmaximal Inter val. Third - octa v e band A Thir d - octave b and is d efined as a f requ[...]

Appendi x B 147 Models SE a nd DL Weighting ( A , C, Z, F) SPL m easurements are co mmonly weig hted (sc aled) in r elation to t heir freque ncy components in order to provi de a consis tent bas is for com parison to oth er m easurem ents of the sam e type. In add ition t o the stand ardized A , C and Z weighting c urves, you can sel ect F - weight[...]

Appendi x B 148 Models SE a nd DL This page lef t blank intent i onally[...]

A p p e ndix C 149 Models SE a nd DL Cust omer se rvice Customer service Contacting 3M Instrumentation Should your 3M equipment need to be returned for repair or for recalibration, pl ease contact the service department at the following number or access the online form via the webs ite. For technical issues, please contact Technical Support. Servic[...]

A p p e ndix C 150 Models SE a nd DL Warranty 3M TM SoundPro Sound Level Meter LIMITED WARR ANTY. 3M wa rrants SoundPro Sound Level Meter will be from free de fective m aterials and workmanship for one year from date of purchase (indicated on the sales receipt), provided it is maintained and used in accordance wi th 3M instructions and/or recommend[...]

Index 151 Models SE a nd DL APPEN DI X D : IND EX AC/DC Output ex plained ................................ . 122 Port locat ion ............................................ 7 Alternate fu nctions Indicator ................................................ 20 Altf ............................................................. 19 Arrows ...............[...]

Index 152 Models SE a nd DL E xpH rs Defined ................................................ 139 ExpSec Defined ................................................ 139 File Setup s(Config) Creat ing or saving ............................... 118 Files L oading and deleting ........................... 115 Naming/Rena ming ..............................[...]

Index 153 Models SE a nd DL I dentifie d ................................................ 18 T urning off ............................................. 21 Overload Indicator ................................................ 20 Overload (O L) Defined ................................................ 142 Pascal (Pa) Defined ............................[...]

Index 154 Models SE a nd DL Loading ............................................... 119 Setup file s(Config.) Viewing ............................................... 119 Setup screen Auto- run with date of week .................... 40 Backlight ................................................ 35 Contrast ............................................[...]

Personal Safety Division 3M Detection Solutions ISO 9001 Registered Company ISO 17025 Accredited Calibration Lab 1060 Corporate Center Drive Oconomowoc, WI 53066 Customer Service: 262-567-9157 T oll Free: 800-245-0779 3M and SoundPro are trademarks of 3M Company, used under license in Canada. Please recycle. Printed in USA. © 2014 3M Company All r[...]