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3M Quest SoundPro SE and DL Sound Level Meters User Manual

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1. gt Connecting to the instrument Place the preamp connector over the mating connector at the top of the instrument Gently press down while rotating the preamp until the preamp connector drops slightly in place Twist preamp locking ring onto SoundPro Figure 2 2 SoundPro amp Preamp 1 While pressing the connector together to engage the threads rotate the black knob clockwise to secure the preamp to the instrument It will fit snuggly gt Connecting an extension cable Extension cables are available from 3M as options and are typically used to distance the instrument body from the microphone to reduce distorting reflections from the instrument s case 1 Attach the cable to the base as if it were the preamp and then follow the steps above Connecting to the instrument Attach the preamp to the other end of the cable Microphone and accessories The instrument is ordered either for Class Type 1 or Class Type 2 use See Distinctions between models on page 1 for information about this classifi cation The microphones are treated differently for the two classes of instru ments SoundPre Models SE and DL 13 Microphone and accessories Class Type 1 and Class Type 2 instrument Class Type 1 and Class Type 2 instrument The SoundPro is shipped with the Type 1 in a protective case with a serial number labeled on the side of the microphone Similarly the SoundPro with the Class Type 2 microphone is also ship
2. Dynamic range The range of input amplitudes on any given range setting over which the instrument can produce a meaningful response The bottom of the dynamic range is the instrument s Noise Floor for that range setting and the top of the dynamic range is the maximum input signal that will not overload the instrument on that range setting SoundPre Models SE and DL 139 Appendix B Exceedance Level Ln Exceedance levels represent the percent of the run time that was spent at or above the corresponding dB level Example An L40 equal to 73 dB would mean that for 40 of the run time the decibel lever was equal to or higher than 73 dB Exceedance levels can be set from 1 to 99 Exchange Rate ER Also known as the Doubling Rate this refers to how the sound energy is averaged over time Using the decibel scale every time the sound energy doubles the measured level increases by 3 dB This is the 3 dB Exchange Rate that most of the world uses For every increase of 3 dB in the time weighted average the measured dose would double Some organizations such as OSHA in the U S have argued that the human ear self compensates for changing noise levels and they felt that the 3 dB Exchange Rate should be changed to more closely match the response of the human ear OSHA currently uses a 5 dB Exchange Rate which would mean that the reported dose would double with every 5 dB increase in the time weighted average The Exchange Rate affects the i
3. 4 Press Enter O to move to the data field Repeatedly press Enter a to toggle between Manual and XX Sec fields M NOTE if you are not setting the timed backlight skip step four 5 To change the timed backlight ensure you are on a timed value i e 10 seconds and repeatedly press Up Down Aw to increase or decrease the time Once set press the Left arrow Backlight settings A setup DISPLAY _ _ e Manual The backlight is turned on and turned off by pressing the BO backlight sion Gn the Zei BACKLIGHT e Interval time repeatedly press JIDDE Up Down arrow to increase or decrease the seconds CONTRAST e e KE Figure 3 11 Backlight setting 6 Press On Off ESC S twice to return to the start screen SoundPre Models SE and DL Eis Setting up display options Contrast 7 To set the backlight press the backlight button on the keypad Contrast The contrast adjustment affects all pixels in the LCD screen Choose a level that looks best to you MT NOTE If the contrast level is set too high icons and the RunTime clock in the Status Region of the display can be ghosted visible in this display although they re not supposed to show Reduce setting to avoid ghosting gt 1 Changing the contrast on the display From the start screen press Up Down MY to highlight Setup and press Enter In the Setup screen press Up Down Aw to highlight Display and press Enter Press Up Down AN to highl
4. 82 Additional options Running reverberation test Running reverberation test 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 for rooms with other intentions i e music acoustical concerts one third octave bands from 100 Hz to 5 kHz can be used applied ISO 3382 also recommends a minimum number of recorded studies in order to obtain a reliable reverb measurement session This is done for two reasons 1 because the test signal is random noise there will be a bit of run to run variance By taking a number of measurements from the same location and averaging them together you get a more reliable estimate of the actual measurement 2 Because the acoustics in a room may vary it is suggested to do spatial averaging taking measurements from multiple locations in the room and average them together to get an average measurement for the room Once the setup options are selected please follow the procedures below to run and view RT60 measurements gt Reverberation RT60 Test 1 Select setup parameters via the Reverb Time screen see Setting up Reverberation above 2 Skip this step if threshold is set to Auto View the ambient noise in the room the Lzmaxvalue and note the value NOTE To ensure a decay curve at least
5. GO rei A C Z F meter 1 Figure 5 12 Tabulation screen for octave filtering 1 1 and 1 3 octave analysis measurement results Measurements and meters All tabulated values in this screen are for the displayed measurement and the selected meter Broadband measurements The first measurement in the screen is a broadband measurement for the selected meter Following that measurement is the number of the selected meter Meter 1 in this example Filtered measurements After the broadband measurement all other measurements given in the display are for Meter 1 in each of the frequency bands according to the type of analysis performed For each band the center frequency of the band is given and the measurement in that band is given at the right of the band s identification SoundPre Models SE and DL 72 Time History Back erase screen Tabulation screens Time History Back erase screen When conducting a broadband study you can view as much as the last 20 seconds of Max SPL in this screen The current Max appears at the right border of the Time Log chart time 0 and advances in one second increments toward the left border of the chart The data leaving the chart at the left border is always a measurement that occurred 20 seconds ago Dk gt 00 0 bi 5 Data points Figure 5 13 Back erasing Back erasing You can remove undesirable data at the end of a study with a process called back erasing Back erasing is avail
6. 45 dB above background noise level is recommended e To view the ambient sound in the room do one of the following A From the Start screen select SLM as the measurement type and select View Current Study e Verify that the range setting is appropriate for the level being measured It is desirable to select the longest range that will not overload Press Up Down Arrows to change range For more details please see Measurement range page 60 e Press Run Pause key and notate the average level NOTE you may need to press the Look up HA softkey and select Leg to view the average ambient sound level For more information please refer to Changing displayed measurements When completed press Run Pause key and then press Stop key to end the session B Follow A above but select 1 1 or 1 3 as the measurement type SoundPre Models SE and DL Additional options Reverberation results 3 Select RT60 as the measurement mode from the Start screen m 0 00 00 START VIEW PAST STUDIES VIEW CURRENT STUDY VIEW SESSION Measurement type Select RT60 for Reverb testing Figure 6 4 Reverb Time Setup screen 4 Please choose one of the following methods to conduct your test e Interrupted Method Pump noise through room with existing sound system or a portable sound system Allow level to stabilize Then press Run O e Impulse Method Press Run O Impulse the room with a broad spectrum
7. Glossary of Terms C A The C A measurement is an SPL average that enhances the low frequency components of the sound signal Alo TI et tT O E A A A lo N III S al le eee 3 5 10 20 50 100 200 500 1k 2k 5k 10k 20k Frequency Hz Figure B 1 C A weighting response curve Center frequency The center frequency of each octave and third octave filter band CNEL Community Noise Exposure Level The accumulated exposure to sound measured in a 24 hour sampling interval and artificially boosted during certain hours For CNEL samples taken between 7 p m and 10 p m are boosted by 5 dB samples taken between 10 p m and 7 a m are boosted by 10 dB The values reported by SoundPro SE DL ignore the threshold and use a 3 dB Exchange Rate regardless how those parameters are set Criterion Level Criterion Level The average SPL that would result in 100 dose over the Criterion Time usually 8 hours SoundPre Models SE and DL 138 Appendix B CT Criterion Time At the Criterion Level the time period over which the resulting dose is 100 Usually is 8 hours dB Sound Level Meters use the decibel as the unit of measure known as Sound Pressure Level SPL SPL uses the ratio between a reference level of 20 microPascals 00002 Pascals and the level being measured SPL 20 log measured level reference level Example the SPL for 1 Pascal is 20 log 1 Pascal 00002 Pascal 94 dB 20 microPascals 00002 Pascals is co
8. SIE 75 RUNDING ena 64 Setting captured CUIVES ccecee sees 88 STI PA testing oocccccooccnccnoccnccnncnnononcnnos 98 DO Dacre te ee a 75 Tabulation screen 71 Time HISO hrs 12 Measures setup screen Gender feld 100 Post process feld 101 Memory card SIOU IOC ATION EE 6 Memory Card A 120 SE Le r 121 Formatting EE 120 Microphone JE ll e BE 12 Installing windscreen oooccconccccnccccnooo 13 Klein 1 Navigating Keypad iii iio 21 NCB Defined WE 142 Noise Defined nenes 141 Noise Criterion Curves NC DeTING DEE 142 Noise Floor RI EE 142 Noise Rating Curves NR Defined coooccccocccccccnccncncconnnnoncnonanononons 142 Octave band RI let HE 141 On off esc SoundDPo Models SE and DL 153 Index dented win tee acai eae sees 18 Te le Ne EE 21 Overload Inte Wee EE 20 Overload OL DEME O eebe ee 142 Pascal Pa A DEN 142 Past data WICWING DEE 112 Past Data Loading and deleting files 115 Pause A 20 Peak C Defined ira 143 Power jack LOCA MO ir ae a A de T Power supply Auto and universal explained 17 GONNECUN cerrota i n 17 Pre Calibrate history screen 63 Preferred Noise Criterion PNC Curves TEE cierta a a 143 Projected time Prt Heed aerea aa 143 PTWA A EE 143 Reference pressure A E 143 Response time Fast slow mpulse eee 27 Response time F S I STING EE 144 Reverberation AD
9. The two methods supported by the SoundPro are the Interrupted noise method and the Impulse noise method While the initial sound source used is different the ending decay curve results are very similar providing accurate RT60 measurements SoundPre Models SE and DL 79 Additional options Reverberation RT60 methods Interrupted 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 system only recommended if the sound system has a quality omni directional sound system With the interrupted noise method the sound source emits a high level source and falls off returning to its original ambient background level The Reverb Time is measured between T and T indicators with an ending RT60 time value M NOTE T is calculated from two reference points on the regression line to ensure an accurate sound level capture 110 Decibel LO a Background y noise level FO 50 Revert frre Figure 6 2 Interrupted noise example Impulse noise The Impulse noise method requires a broad spectrum impulsive noise source such as a Starter pistol in a room to be tested Typically the RT60 decay start will begin at a high level source and decays reporting a Reverberberation Time SoundPre Models SE and DL 80 Additional options Reverberation options Reverberation options The following setup options are selec
10. and sufficient Universal current 300 mA minimum it will be used in power place of the batteries if they re installed in the supply instrument Figure 2 8 illustrates the assembly of the Universal power supply and the plug adapter It slides into place by guiding it down the back cavity opening of the power supply NOTE the example is a typical adapter which may be different than the one you are using Mechanically it will function similarly A Universal power supply 9V B Slide plug adapter into the crevices of base Figure 2 8 Attaching the charger adapter with the plug adapter gt Connecting power supply source 1 Ensure the power supply is assembled for universal power supply only 2 Plug the power cord into the power jack by opening the base cover Attach the opposite end into the power supply i e outlet automobile jack as discussed in Hardware interfaces page 6 Power Jack 3 Plug the opposite end into the power supply SoundPre Models SE and DL 18 Turning on Start screen and the keypad Turning on 1 To turn on the SoundPro press the On Off Esc Ga key until the start screen appears Start screen and the keypad The Start screen is the first screen you see when you power on and the last screen you see when you shut down This essential main screen is also used to navigate through the menu options The keypad and softkeys are used to setup the instrument run a study
11. frequency resolution and the types of data stored The table in Figure 1 1 summarizes the characteristics of all twelve models and includes add on features for Reverberation Speech Intelligibility and Acoustic Spectral Curves Summary and Statistical Data Time History Data Part SP SE 2 SoundPro SE SLM SP SE 2 1 1 SoundPro SE 1 1 Octave RTA ps Sondre SE O ES E E EES ees SoundProSESoundtevelmeter x x SP SET Sones moara X TX X IS Sono sema modera x Xx x x _ LL Class Type 1 SES Class Type 2 ml 1 1 Octave RTA il 1 3 Octave RTA SPDL2 Sounder r Daions TX XP E SP DL2 W7_ SoundPro DL V Octave Dataloggmg RTA x _ SP DL2 W3_ SoundPro DL 11 amp 173 Octave Dataloggna RTA X x X xX X SPDT SoundPro Di Daions X TX X E SPDLA W_ SoundProDL Wi Dateien Rta x x p xX SPD SoundPro DE 817 Octave DataogswaRTA x x Xx xX x Part Description Compatible with the following modets Speech Intelligibility STI PA and eSP SE 2 1 1 eSP SE 2 1 3 eSP SE 1 1 1 eSP SE 1 1 3 Option 1 Acoustic Spectral Curves eSP DL 2 1 1 eSP DL 2 1 3 eSP DL 1 1 1 eSP DL 1 1 3 Speech Intelligibility STI PA with accessories and Acoustic Spectral eSP SE 2 1 1 eSP SE 2 1 3 eSP SE 1 1 1 eSP SE 1 1 3 Option 2 Curves eSP DL 2 1 1 eSP DL 2 1 3 eSP DL 1 1 1 eSP DL 1 1 3 Reverberation measurement and RT60 SoundPro SE and DL models with 1 1 and or 1 3 only includes analysis part number 053 76
12. off position The meter will then automatically switch into Auto Run based on your setup Date Day OF Week Timea Run Level EE d Days of Week Auto Run setting Enabled Start Tel 11 51 50 Duration 01 00 00 To program Auto On 1 first select the days of the week then specify a start time for your test with a kee E ee een E LEE E E duration to end your test Auto On 2 Enabled Start Time 11 51 50 Duration 01 00 00 Sunday Tuesday Thursday Saturday Monday Wednesday Friday I Sunday Tuesday Thursday Saturday Figure 4 3 Example of setting up Auto Run QSP II A study run under the DOW mode wakes up the instrument from a powered down condition runs the study saves it then powers the instrument down again The cycle repeats for the next time and day in the setup and for the other Auto on 2 if that is also activated in the mode gt Setting the Date of Week DOW 1 From the start screen press Up Down Awy to highlight Setup and press Enter B 2 Select Auto Run by using Up Down ANY to highlight and press Enter a to select 3 In the Auto Run screen repeatedly press Enter until DOW appears 4 Press the Down arrow to select View Set Parameters and press Enter a SoundPre Models SE and DL 41 Days field Auto run 2 is programmed to run setup AUTO RUN DOW Monday Thursday and Saturday Start time and duration Setting up auto run Days of week
13. the timed response and the weighting These are in the following SoundPro screens Measures Set screen View Current Study screen and View Session Study screen Measurement setup for community noise The measure screen is used to select community noise settings for meter 1 only Table 3 2 below explains the settings and options gt Setting up community noise measurements refer to figure 3 5 below 1 Ensure you are at the start screen e f turned on repeatedly press On Off Esc Ga until you return to the start screen see Figure 3 3 2 Press Up Down W to highlight Setup and then press Enter a 3 Select Measures from the Setup screen by pressing Up Down MAY to highlight and then press Enter a 4 Inthe Measures screen press Up Down MAY to select one of the measurements To select second column first press Up Down arrows then press Right arrow setup MEASURES Measurements ESCH EE e L1 L4 IEJ un LON ON Data fields e LDN CNEL L 110 CNEL ON e Edit column 1 or column 2 e Lea TAKTMX L3 L50 1 Loa ON fields by pressing enter L4 iL90 TAKTMX 3sec repeatedly to toggle through selections Figure 3 5 Measures screen for community noise settings 5 To make changes to the data fields do one of the following e L1 L4 Press Enter a to move to the data field In the data field repeatedly press Enter to change your selection e Press MAY arrows to change percentage e
14. 0 to 1 0 where 0 5 to 1 0 is considered a passing score per NFPA 72 and IEC 60849 STI 00 0 30 0 3 0 45 10 45 0 60 0 60 0 75 0 75 1 00 scale Common intelligibility Scale CIS Similar to the STI scale the CIS scale uses a range from 0 0 to 1 0 to determine if the MNS is intelligible However with the CIS scale a rating of 0 7 to 1 0 is an intelligible score per the IEC 608489 and NFPA 72 a 0 48 0 65 0 65 0 78 0 78 0 88 0 88 1 0 scale When to take STI PA readings Scenario one You may be able to run the test signal through the PA system during normal business hours In this scenario you would set the meter to STI PA and select either STI scale or CIS scale and run your study in the mapped zone areas Scenario two In other situations running a test tone through a PA system during business hours could be distracting and not feasible for your environment In this situation it is recommended to follow these procedures e First take sample background noise measurements during business hours These are saved and stored on the Verifier as Captured Curves The verifier will save up to four captured curves Second in the STI PA options select the appropriate captured curve e Third run your measurements at the appropriate time of day i e late evening early morning The applied captured curve will automatically factor into your study e Fourth view your results on the
15. 53 Communications Viewing real time measurements remotely gt USB communications 1 2 at SE If a session is running stop it In the Start screen press i select Setup then press a The Setup screen appears In the Setup screen press the arrow keys to select Comm Set then press a and the Comm Set screen appears USB should be Highlighted Press a to toggle between QSP Serial and Mass Storage If the RS 232 channel is not set to Off Lo Pwr press the left arrow to highlight RS 232 and repeatedly press 6 until Off Lo Pwr is displayed Press 6 to exit the screen Connect the small end of the USB cable to the USB port Hardware interfaces on page 6 Connect the large end of the USB cable to a standard sized USB connector on the computer Viewing real time measurements remotely On the SoundPro the Log to Port feature provides the functionality to stream logged data out the serial port at the log rate to an external device such as a pc With this feature you are able to view logged measurements for broadband as well as filter band average measurements depending on the model you ordered It will not report Lmax Lmin or Lok for each filter band Turning on log to port In the Comm Set screen selectable via the Set up screen select RS 232 field by pressing the down arrow Press a repeatedly to turn on LOG PRN IMI setup COMM SET USB QSP Serial RS 232 LO
16. 6 15 Figure 6 16 Setting Date parameters for Auto Run gi 39 Example of setting up Auto Run QSP FIHl ooococoooocccnccccocccncccnocconnconorocnnnnnons 40 Day of the Week DOW Setup coooooccccooccccccnccnononcnnononononnnconononcnnononcnnnnnrnnonnnons 41 Auto Run Shutdown screen vi iii 42 Timed Run SETUP SCrCE eege id EE 43 Level Triggered screen RE 44 Secure Lock GEES 47 Secure Lock SEN e les dale od a lt a ado oa aA ae 47 Adding code for securellock screen 48 Secure OC FUN Ten e EE 48 Secure lock Setup prompt 49 Digital QUESCreen ca A sand 50 SF SOLA iia tia iia 52 Mass Storage nia 52 EOG O FON o eect ar man eter ea eas a Tene ten meen Teen ramen Tree er nn eee ett rere 53 Comm Set screen for GPS data 54 Viewing GPS coordinates in COMM Set ecreen 55 Bar chart screen A and Filtered Bar Chart BI 60 Attaching calibrator to SOUNAPFO ooooccccooccccccoccnccnncnnonononcnnnncnnnnaconnnnnrnnonancnnnnos 62 Setting Dre calecreen cc ccccecc cee eeeeeeeeeeeeeeeeeeeseeseeeseeeeesaaeeeeseeseesseneeesaeeesseneeeeas 63 Calibration history SCTOeNn ii ti eee 63 Post Calibrate history SCree n 0 a 64 Bar Chart Screen In FUN Mode aaae A 64 Selecting measurements with Lookup sottkey 66 Example measurement icons descriptors coooccccoccnccccnccccnnconcnoconnncncnononnnos 67 Bar Chart screen and Filtered Bar Chart screen 68 Community Noise screen 69 DOSsIMety
17. DL 95 Audiometric background curves Setting up audiometric background curves 2 3 OF OE Ol Next select the measurement settings by selecting View Session use Up Down Arrow to select and press Enter Select the following recommended meter 1 settings using the softkeys using the softkeys measurement to Leq Slow response and Z weighting e Setting measurement to Leq Press the 1 softkey to access the Lookup menu Using up down arrows on the keypad select L_eq A diamond character u indicates the selected measurement e Setting timed response Repeatedly press 2 softkey to select appropriate setting recommended is S for slow response An underline denotes the selected response e Setting Weighting Repeatedly press ge softkey to select appropriate setting recommended is Z for Z weighting wih WM 00 00 00 Lookup menu Timed Response Weighting Figure 6 15 Selecting measurement type for curves Press On Off Esc Ga to return to the start screen Select Setup use up down arrows to highlight and press Enter Select Options menu use up down arrows to highlight and press Enter O l Select Curves menu use up down arrows to highlight and press Enter a For the Mode field select Eval Evaluation by repeatedly pressing Enter a For the Type field select one of the following by pressing the down arrow to move to the type field and repeatedly press
18. DMS Start Page Navigational buttons 1 Setup 2 Download 3 Data Finder look at your session data or use Quick Report feature E It eous Mraducing the IM 67210 Let es ior N95 J i 2 f Par ti ik ile A KA ES E JM Sealed Reload Retractable Lifelme Vieast II Pl nel ts 5 Lienited Tiene Offer SoundPre Models SE and DL 10 Detection Management Software DMS DMS Start Page This page left intentionally blank SoundPre Models SE and DL CHAPTER 2 11 Checking the equipment Getting Started This chapter provides the basic information you need to get up and go essentially right out of the box including getting your first glimpses of SPL Checking the equipment If your instrument was sent to you in a storage case you will want to remove all the packaging and acquaint yourself with the equipment so you can quickly get started The items below are included in a standard SoundPro SE or DL Preamp SoundPro gt j _ Microphone t e Optional 1 and Y microphones available Windscreen meter Get LHA baca SN Mma 4 AA alkaline batteries e Optional feature EE D Figure 2 1 Identify SoundPro equipment SoundPre Models SE and DL 12 Microphone and accessories Installing the preamp Installing the preamp The preamplifier is detachable for storage purposes or if you wish to connect an extension cable for distance monitoring
19. Enter l e ANSI AM Booth or OSHA AM Booth W setup Curves MODE Eval Mode select Eval TYPE ANSI AM BOOTH Type ANSI Booth Curves screen CRITERION INS 500Hz 8kHz Criterion field will only appear if ANSI AM Booth is selected in type field Figure 6 16 Audiometric booth setup in the curves screen SoundPre Models SE and DL 96 Running and viewing curves Curve measurements and results 10 Skip this step if you selected OSHA AM Booth To select a Criterion press the down arrow and repeatedly press Enter You have the following three settings in the testing ranges of 125Hz kHz 250Hz 8kHz and 500Hz 8kHz octave or one third octave bands e NC refers to not covered ears in relation to a person in a hearing booth without the use of hearing protection e SArefers to Supra aural which is used when a persons is in a hearing booth with large headphones e INS refers to Insert which is used when a person is in a hearing booth with ear inserts 11 Press On Off Esc DO twice to return to the start screen e Torun your Curve study please see section Running and viewing a curve study Running and viewing curves After you have enabled curve mode type and criterion only applicable for evaluation mode you are now ready to run a curve study When viewing your measurements it is important to understand how your results will display The following is an explanation of the curve ty
20. Esc to repeatedly to return to the Start screen IN SETUP FILE TEST 1 City of Houston City of Austin Ree Delete softkey CO ordinance Once selected it will Select a set up apply the saved then press setup Delete softkey DELETE LOAD MORE Figure 7 11 Viewing loading deleting setup files SoundPre Models SE and DL 120 Memory card Compatibility Memory card The memory card supplied with the instrument is used to store session and configuration files 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 from the previous session Essentially lack of a memory card converts a multi session instrument into a single session instrument Compatibility Steps have been taken to make sure the SoundPro is compatible with as many SD cards as possible Because of the many SD card manufacturers and the varying low level formats they use 3M can only guarantee operation with cards available from 3M If using a memory card with 2GB or less FAT 16 format is required For cards ranging from 2GB to 32GB a FAT 32 format is required gt Determining the format of an SD card Insert the card in the computer s card reader drive Open Windows Explorer Right click on the CD drive listed under My Computer From the right click menu select Properties On the General Tab the File System field ide
21. Meter 1 and meter 2 parameter 27 Time and date occcocccnccccncnnccncnnnnnncnnnnnos 25 Setup screens Microphone signal input 24 Softkey LOOK S seoir reestse c oa stiecsebiens 66 Softkey buttons ococooccccccoccncccocnnonononnnno 19 Softkey MENU ii EE 19 Softkeys EXP div ica ria ad 66 SoundPro SE or Dm 11 Speech Transmission Index dea did di 98 SPL Demetrio denise das 145 STI PA Applying background noise capture curve OVGTvVlew 108 General setup guidelines 100 Modulation envelope screen 106 Modulation screen 105 RUNNING a study coccoocccconccconccccnccnnnncnnnn 103 A eee eee reer 100 Steps applying captured curves 108 Viewing result screeng ees 104 Ee Eege 19 Inte We a EE 20 Stop and pause EXDIAINCO eege ec 15 Studies KOI ANNO EE 59 Study EE e EEN 59 Taktmx DOPING irean 146 Third octave band BE 146 Threshold DEMME sonnan a 146 Timed Run 43 Triggering SEINO WE 50 TUAN Be EE 21 TWA MN 146 Underrange Inte er e EE 20 Upper Limit UL DOPING A E E 146 USB portlocatioM sesira 6 E Lee le Le EEN 2 Weighting A C Z F DOPING egaine a a 147 Windscreen Demed Ee 147 SoundPre Models SE and DL About Us 3M Detection Solutions is a world class manufacturer of rugged reliable instrumentation and software systems that help monitor and evaluate occupational and environmental health and safety ha
22. Port Auxiliary port on page 7 Manage these digital outputs in the Ext Trigger screen Tracking runs The instrument can be configured to use a digital output to signal the start or end of a run gt Enabling or Disabling run pause digital outputs triggers 1 From the start screen press Up Down Aw to highlight Setup and press Enter a Select Digital Out by using Up Down AY to highlight and press Enter a to select Press lt gt to select Output 1 Press a to enable Run Pse or disable Off run tracking If you enabled and want to reverse the trigger logic continue below Otherwise skip to step 9 Press 4 Pto select Logic 123 then press io enter the first data field The second data field is for Output 1 Press lt gt to select the second data field then press O toggle the logic state The displayed logic state is for a running study Press O exit the Logic 123 data field If finished press Ot exit the screen DR BR setup DIGITAL OUT OUTPUT 1 OUTPUT 1 OUTPUT 2 Select Run Pause to enable OUTPUT 3 LOGIC 123 HI HI HI Figure 4 13 Digital Out screen SoundPre Models SE and DL 51 Communications Digital outputs and SPL Digital outputs and SPL The instrument can also be configured to use a digital output to signal if the current SPL measurements exceeds a specified level gt Managing SPL digital outputs See Figure 4 13 above 1 Open the Digital Out screen by selecting Setup
23. Press to begin measuring A session is currently open for the instrument when either the Run icon or the Pause icon appears in the Status Area at the top of the screen lle D gt 00 10 30 RunTime 10 d Battery icon m N 9 s dB L Geer _ Lookup softkey Figure 5 6 Bar Chart screen in run mode SoundPre Models SE and DL Measurement navigation Using softkeys in measurement screens 7 NOTE The Lookup softkey is used to change the measurement options There are five selections which include SPL Leq Lpk Lmax Lmin See Changing displayed measurement for more information on page 66 Measurement navigation You can navigate through the measurement screens by repeatedly pressing The first screen you encounter when viewing a measurement screen is a bar chart or filtered bar chart screen The subsequent screens that appear depend upon the measurement setup the meter selection and the type of analysis There are four possible screen types Measurement Explanations screens Bar Chart or Depending on if you selected SLM 1 1 octave or 1 3 octave Filtered Bar one of these screens will appear Chart Tabular screen Available for Meter 1 only If your instrument contains a filter option and is set to an octave or third octave analysis type the screen that appears next in order after the Bar Chart is a Tabular screen There may be one or more additional Tabular screens depending upon the analysis type that s in
24. SE and DL 14 Providing power Installing Batteries 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 in Appendix A for more details Installing Batteries The instrument requires four AA sized batteries Disposable alkaline batteries are satisfactory but you may also use rechargeable Nickel Metal Hydride NiMH batteries Rechargeable batteries The instrument does not contain a recharging circuit Recharge batteries externally using the recharging device available from 3M or a compatible device available elsewhere Selecting batteries Do not mix battery types or batteries with significantly different charge levels NOTE To avoid possible battery leakage remove the batteries when the meter is not in use for prolonged periods To install batteries With the back of the instrument facing up push the release latch to pop open the battery lid Figure 2 1 Release latch Locator ___ pins Figure 2 4 Installing batteries Lift off the lid and set aside Wedge out the four batteries Replace the batteries with fresh batteries taking care that you orient all batteries with the positive ends toward the base as shown in the drawing Re insert the lid by fitting its locator pins into slots in the base end of the battery comp
25. SSG le Eege 132 A Ee 132 Klee 133 SoundPre Models SE and DL ix Table of Contents Bore le fale mec 14081 07 1 Gereteene mee tar Meee r ine niles ie ltee E 133 Par i El wl 133 PRE DIAG CIO IIL en xia sacred accel A Gane ee em eee ae ae 133 o A 134 PO PINUS aia lie 135 PCI CJ ACK ii a id 135 PAUXINATY CONNEC lO Rusia rd 135 Block Diagram for SOUNAPTO ocoooonoccccccnnononcnnnnnnnananonononanonnnnnnnnn nana nernnnanananenannnnas 136 MOSS Al YO E o a eek 137 CUSTOMER SOIVIC Buin 149 Contacto o ads 149 Wa Ee a E 150 FIGURES Figure 1 1 SoundPro Models SE and DL and Option 1 and Option 1 Figure 1 2 Octave DandS EE 2 Figure 1 3 Third Octave bands 20324 ee eee ee eee eee 3 Figure 1 4 Hardware Interface Panel cscri A Ai 6 Figure 1 5 The Unit Information screen 8 Figure 2 1 Identify SoundPro eogupment cc cccccecececeeeeeeeeeeeeeseeeeeseeeeeeseeeeeeseeeeesaaneeesaeeees 11 Figure 2 2 SOUnaPro Preamp aos e EE ia 12 Figure 2 3 SoundPro with microphone and windecreen 13 Figure 2 4 INStallING Re E TEE 14 Figure 2 5 Battery CNOCK SCIEON E 15 Figure 2 6 Selecting Setup in the Start Screen 16 Figure 2 7 Selecting battery type in battery check ecreen 16 Figure 2 8 Attaching the charger adapter with the plug adapter 17 Figure 2 9 Base or bottom of SOUNAPTO 0000 ence ede an ee ened ce 17 Figure 2 10 SoundPro SE DL start screen and kevpad 18 Figure 3 1 Microphone Settings Signal Input screen 24 Figure 3 2 Time
26. a setup is already past the run will not be identified in this screen SoundPre Models SE and DL 43 Setting up auto run Timed run setting Timed run setting In Timed Run mode you program the instrument s duration or timed run and then manually start your study which can be applied as many times as you wish The auto run will end when the duration expires gt 1 Viewing or changing the Timed Run setup From the start screen press Up Down Ae to highlight Setup and press Enter Select Auto Run by using Up Down Aw to highlight and press Enter amp to select In the Auto Run screen repeatedly press Enter a until Timed Run appears To set the duration press Enter to toggle between the Hours Minutes and Seconds field To change the time values press Up Down Ay repeatedly until the specified value is selected Press On Off EscQY repeatedly to return to the start screen When you are ready to run your study press Run Pause setup AUTO RUN TIMED RUN Ti ENEE med Run TIMED RUN Auto run setting with timed run selected D 08 00 00 Duration Formatted as Hours Minutes Seconds T ele Figure 4 6 Timed Run setup screen SoundPre Models SE and DL 44 Setting up auto run Level triggered auto on setting Level triggered auto on setting The level triggered screen contains meter 1 parameters which include a Filter mode Frequency level Level On and Level Off modes and a specification
27. and EU GN 77 PROGITION Al ODTIONS OP PP OR O 77 REVerDera MO muii dao paid 171 ReverberationtIme RECO nomad 78 Reverberation RT60 methods A ts iaa 78 Interruplea NOISE cotarro ot 79 SoundPre Models SE and DL vi Table of Contents IMPuISe MOISES EE 79 REeVerberatoOn OPA Sarita ad 80 SP A 81 Running reverberation E ooo 82 Reverberation TOS Sestao ida 83 Fe FOO SUMMARY SCEO sucedan 84 Viewing RT60 values Of each band 84 Deleting RT60 value in a filtered band 84 DECAY CUVE SONS E 85 Fab Qari 1 OOSCKECi EE 86 EIERE 87 Captured CUFVeS ai 87 Captured curve applications cccccscccsscccesceceseeceeeceececeueeceuseceeeesaeecsuceseueesseeeseeesaueessaeess 87 Sening UP Captured e EE 88 RUNNIN Captured CUVE E 90 Criterion curve TAMUNGS esence EEEE 91 Types OF CHileriOh Ke 91 Seting UP CHILEON CUVE S cuias e a a a a a 92 Audiometric background curves ee KREE REN REENEN ENER E NENNEN ENER RE RE 94 Setting up audiometric background Cumves 94 Running and VIEWING CUIVES c ococcccccccconcnncnnnnnnnncnnnonncnncnnrnnrnnrnnrnnrnnrrnnrnnrnnrnarnnrnannnnes 96 Curve measurements and results 96 Speech IATSTIN CUD D TO 98 A rR Oo es 98 ZONES aras 98 Selecting STI scale or Cho scale a di 98 Ee EE E A A Ehe 99 Common Intelligibility Scale CIS 99 When to take STI PA e Un LE 99 Conducting a STI PA test Overview Of steps 100 STEPA DEE 100 SoundPre Models SE and DL vil Table of Contents Conduct
28. display of the instrument or in Excel by using the File converter tool SoundPre Models SE and DL 100 Speech Intelligibility Conducting a STI PA test overview of steps Conducting a STI PA test overview of steps Calibrate the SoundPro Set up your STI PA options via the Measures setup screen Select the measurement type as STI PA A level setup is conducted From a fixed point the technician measures the A weighted SPL of MNS message or alarm system The test signal volume should approximately match the MNS message volume You would adjust the test signal to match the Las value The test signal is played through buildings voice system PA system The technician sound tester positions himself herself in Zones building areas e ltis recommended to design a map of zones or rooms to indicate where you will be taking your measurements e Set measuring range appropriately STI PA measurement is conducted Press the Run Pause key to start the study NOTE If you want to post process your intelligibility measurements with previously captured background noise you would first capture curves and then apply this during your study After a 15 second countdown either a STI or CIS level is displayed with a pass fail message The technician sound tester moves throughout the building and measures in all zones rooms NOTE A zone room is typically a room 20x20 More than one measurement may be required if the roo
29. from the start screen Press MW arrows to select Setup and press 2 Press lt gt to select Output 2 or Output 3 then press to move the cursor to the data field at the right You have two options for each output e OFF Disables SPL tracking for that output e dB level Enables and shows the current setpoint for that output 3 Press a to toggle between these options If you select Off press 6 to exit the data field then skip to the last step of this procedure If you enable the trigger continue below 4 Press lt gt if you wish to change the setpoint 5 Press bei to exit the data field 6 If satisfied with the trigger logic skip to the last step of this procedure To toggle the logic setting continue below 7 Press lt gt to select Logic 123 then press a to enter the first data field The third and fourth data fields are for Output 1 and Output 2 respectively 8 Press lt gt to select the appropriate data field 9 Press a to toggle the logic state The displayed logic state is for SPL that equals or exceeds the setpoint 10 Press 6 to exit the Logic 123 data fields 11 If finished working in the Ext Trigger screen press OD exit the screen Communications The SoundPro has both USB and RS 232 communication channels The majority of users should only require USB communications which is vastly faster than the RS 232 channel which is intended for low speed modems GPS applications and o
30. given under Optional parts in Appendix A Auxiliary port Use this port to connect the SoundPro SE DL instrument to other devices The two types of functions described below are available through the terminals of this port A pinout of the port is provided under Auxiliary connector on page 139 e Digital I O A group of contacts within the port provides one logic level input and three logic level outputs See Digital Outputs Triggering on page 50 are information about configuring and using the triggers e RS 232 A group of contacts within the port supports the RS 232 protocol for communication between the instrument and other devices such as a Global Positioning Satellite GPS receiver See GPS on page 54 for information about configuring the port for this purpose SoundPre Models SE and DL 8 i Information screen Screen contents Information screen Every SoundPro SE DL instrument describes its unique characteristics in its Information screen In the Start screen press Aw to select Unit Info then press The Unit Info screen appears Figure 1 5 MUY UNIT INFO 1 SoundPro DL 1 1 3 2 Serial BIF120010 Revision B 12M Installed Features CURVES STI PA Figure 1 5 The Unit Information screen Screen contents The lines indicated in Figure 1 7 will contain the following information Line 1 Model number showing in order the 3M designation SE or DL the Class Type 1 or 2 and
31. instrument and a personal computer Measurements Types SPL measures SPL Average value Layg or Leg Maximum value Lyx Minimum value Lyn Peak value Lpp Noise dosimetry Sound Exposure Level SEL Time Weighted Average TWA Projected TWA PTWA Taktmaximal TAKTMX Dose Projected Dose PDSE Exposure EXP Community noise dosimetry Exceedance L Day Night average Lan Community Noise Exposure Level CNEL SPL difference for C and A time response settings L Overload Time OL The percentage of time over the OL setting Ranges Broadband Eight selectable ranges of 90 dB each Filtered Eight selectable ranges of 80 dB each Measurement parameters Response time Fast slow and impulse Frequency weighting A C Z and F flat Threshold 10 to 140 dB or OFF Exchange Rate ER 3 4 5 and 6 dB Criterion Level CL 40 to 100 dB Upper Limit UL 10 to 140 dB Projected Time 1 to 24 hours SoundPre Models SE and DL 132 Appendix A Other Maximum peak level 3 dB over the full scale reading Calibration Pre calibration When performed valid prior to the start of a session Post calibration When performed valid for the previous study in the ses sion Storage All calibrations for a session are stored in the related session file Calibrators All 3M Calibrators have an output of 114dB at 1 kHz and some may have other settings See Preparing to c
32. marily used for selection and navigation and another four provide variable functions when they are defined in the display softkeys Languages English Spanish German French Italian and Portuguese Input output Memory card Removable Secure Digital SD data storage device that is inserted in a slot at the base of the instrument Stores measurements made in studies and sessions in session files If the instrument has a logging option installed and is logging measurements the logged values are stored in the applicable session file as well The card also stores configuration files Microphones The following specifications apply to microphones connected to the instru ment QE7052 Free field Class Type 2 standard low cost 72 inch diameter 52 electret 200 volts must be set to Off BK4936 Free field Class Type 1 standard 72 inch diameter 52 elec tret 200 volts must be set to On QE4110 Free field Class Type 1 optional 14 inch diameter 276 con denser 200 Volts must be set to On Use for very high dB level free field measurements Requires a special preamp to handle high levels Please contact 3M QE4130 Free field Class Type 1 optional 2 inch diameter 52 con SoundPre Models SE and DL 130 Appendix A denser 200 volts must be set to On Use for general higher level free field measurements QE4150 Free field Class Type 1 optional 72 inch diameter 5
33. notation on page 57 where the underline character represents the time response and frequency weighting settings for the selected meter gt Changing displayed measurement 1 If necessary press O Alternate Functions key to show the softkey labels 2 Press the KIT softkey to display the Selection Panel The available measurements are arranged in a column with the selected measurement marked Hr gt 00 1 0 30 10 90 Selection Panel d EST gt This appears when lookup softkey is L A pressed Leq e The diamond symbol u indicates L Pk which measurement is selected L Mx L_eq Press Enter key to confirm L Mn Ad new selection Lookup softkey Figure 5 7 Selecting measurements with Lookup softkey 3 Press Aw to make a different selection 4 With your selection marked press a or press KIT to make the change effective NOTE When viewing during broadband analysis you can use the left right arrow keys to change measurements Analysis type time response and weighting If your instrument has a filtering option you can change the analysis type To change the analysis type time response and or weighting you must be in the View Current Studies screen or in the View Session screen Also the current session must be stopped or closed For more details on changing these SoundPre Models SE and DL 67 Measurement screen icons Descriptor types options please see Measurement type on page 26
34. rata c a T information E iii da 8 Screen COMENS ee ee 8 Detection Management Software DMS cccccesceseceeeeeeeeeeeeeeseeseeeseeseeesenseeesenees 9 BDMS Star Pat ciedad 9 E Started E 11 Checking the GQUI DING EE 11 NSTalling AAS OLS Un EE 12 Microphone and accessories REENEN REN NENNEN ENNER ENNER E EEN ENNER 12 Class Type 1 and Class Type 2 mstrument 13 WINS EE 13 Providing DOWN canas 14 Jet e Le 14 Battery power explained assi 15 SoundPre Models SE and DL iil Table of Contents CNEGCKING Ol CHANGING EE 15 Using power supply or auto adapter ken 17 TUNING ON DE 18 Start screen and the keypad ccccccsccceececeseeceeeeceecccueeceueeceueeseeeceecsucecsueessueesueeseaeessaeess 18 SoundPro TUNCTONAINY 020 eee eee Sees 19 a ER KV AG XO ee EE 19 HAGIC ALO FS e paned EE 20 Kier Ile ME 21 RU al an Ce O GE 21 ASIC SC UU Sao 23 Changing microphone settings ee EE 24 REESEN EE e ee 25 Measurement type SLM 1 1 1I3SGIIbDARIoU 26 Meter 1 Meter 2 Parameters i e response time weidhtmng 27 Measurement setup for community NOISE oooccccoccncccccnccnncncnnnononnnnnnnncnnonacnnonarnnonnrnnnnncnnnns 28 CG AmMeasure ment Ctd Sui tala 30 LOGGING 31 Reseller O 31 See En Le RT RE 31 SI EE 31 09910 Mtra A A a 31 Setting log tege le 32 Setting Up display OPHONS sssini 33 Langue tao da dd ne ee 34 Back loma aaa 35 BO AA tape a renee Geen ee pec eae ee gee eee eee toe 36 PROV ANGCO RT E 37 AU
35. setting 5 Toset the Days press Enter el move between the fields To program a day press Up Down Aw to select a day setting The first character of the day will appear when selected e The Days field is organized in the following sequence Sunday S Monday M Tuesday T Wednesday W Thursday T Friday F Saturday S e For example Figure 4 5 displays Sunday S Tuesday T Thursday T and Saturday S selected as pre programmed run days 6 To set Start time S and Duration D for Auto Run 1 press Enter a repeatedly to move to Time line 1 Press Up Down arrows to change the time and duration values Press Enter a to toggle through the fields or press left right arrows 7 Skip this step if not setting auto run 2 To set auto run 2 press softkey 2 until the screen displays a plus symbol in front of 2 This denotes it is activated Then Zei 5 6 8 To exit the screen press On Off Esc repeatedly until you return to the main screen Press and hold the On Off Esc to power off Start time and duration Auto run 2 is Auto run 1 is S 10 00 00 D 02 00 00 programmed to run at programmed to run at 2 S 14 00 00 D 02 00 00 2 00pm S for a duration 10 00am S for a D of 2 hours duration D of 2 hours 2 Figure 4 4 Day of the Week DOW setup 9 When powered off an Auto run shutdown screen will appear Please see section Auto Run shutdown screen Soun
36. stop a study view your measurement values and power on and off the meter Indicators Battery power jay Stop gy Run time 00 00 00 1 Display VIEW CURRENT STUDY VIEW SESSION SETUP FILE comm git 7 Softkey Menu Correspond with softkeys 7 a E 8 Softkeys 2 Backlight 3 Stop 9 AItF A 10 Enter 4 Left Sa 11 Right arrow 5 Up Down arrows 6 Run Pause 12 ON Off and ESC a a a a On Off Figure 2 10 SoundPro SE DL start screen and keypad SoundPre Models SE and DL 19 SoundPro functionality The keypad explained SoundPro functionality The keypad explained The SoundPro SE DL keypad consists of three general types of keys soft keys navigation keys and dedicated keys Keypad Explanation 1 Display Used to view data menus and various indicators 2 Backlight Used to illuminate the background of the display screen e nighttime study 3 Stop Used to stop your study when in the Run or Pause modes A 3 2 1 countdown will appear as you continue to press the stop button 4 Left arrow Used to navigate left through menus and or data 5 Up Down Arrows Used to navigate through menus and or data 6 Run Pause Used to Run or Pause a study A run or pause indicator will appear at the top of the screen to signal you of the appropriate mode 7 Softkey menu The softkey menu are additional menu options for setting measurement type i e SLM 1 1 etc Cali
37. stored on the instrument Storing Data Session and Study Scenario Explanations A session is comprised of one or more studies and uses data derived or accumulated from those studies to arrive at session results The measurements in a session are the same ones made in each study in the session For example the maximum SPL determined for each study in a session is compared to the maximums for each other study in the session to determine the maximum SPL for the entire session Likewise an average or an accumulation for a study is continued using data from subsequent studies in the session to arrive at the corresponding average or accumulation for the entire session Studies are periods in a session during which measurements are acquired processed and saved by the instrument The duration of each study period is called the study s run time You will be running a sound test in a machine shop Your main objective is to determine the noise in three different work areas of the plant which include two different machinist areas and a welding area You set the SoundPro to run and pause three times at one hour intervals When the tests are completed you upload the data into QSP Il The tests will store as one Session under Downloaded node and each one hour test is denoted as a Study Table 5 2 Sessions and studies explained AT CAUTION The memory card should not be inserted or removed during a study you can lose d
38. test tone during normal business hours 1 From the Start screen select either 1 1 octave or 1 3 octave for the measurement type h E START VIEW SESSION SETUP UNIT INFO 00 00 00 VIEW PAST STUDIES VIEW CURRENT STUDY ai s A Selecting Measurement type Press first softkey until 1 1 or 1 3 is selected Figure 6 24 Selecting 1 1 or 1 3 for measurement type SoundPre Models SE and DL 107 Speech Intelligibility STI PA results screens 2 Setting up Curves Select Setup and press Enter a Select Options via the Down Arrow and press Enter Curves will be highlighted press Enter Choose Survey as the Mode and Captured CAP as the Type and then press On Off Esc repeatedly to return to the Start screen mi W Mode When highlighted press Enter continuously to toggle through the menu options and select Survey NOTE Survey Eval mode will compute the same results Captured CAP To select the Type field press down arrow Press Enter repeatedly to select Captured CAP Figure 6 25 Captured curve background noise setup for STI PA testing 3 Capturing curve background noise See Figure 6 26 below Select View Session by pressing Up Down Aw and press Enter Note it is recommended to capture either the SPL or the Leq level To change the measurement displayed press the Lookup softkey and select either orl eg For more
39. the measurement type by selecting View Session use Up Down Arrow to select and press Enter Select the appropriate meter 1 settings using the softkeys and set the response time weighting and measurement type See Figure 3 4 page 27 for an example MM NOTE It is recommended to set Meter 1 to Slow response Z weighting and US Ob a E measurement to Leg Press On Off Esc Ga to return to the start screen Select Setup use up down arrows to highlight and press Enter Select Options menu use up down arrows to highlight and press Enter a Select Curves menu use up down arrows to highlight and press Enter a For the Mode press Enter repeatedly to select either Survey or Evaluation setting Please see explanation below e Survey Mode dynamically evaluates the noise and reports the appropriate noise curve Typically used if you wish to take multiple curve samples to evaluate and re evaluate noise in a room zone SoundPre Models SE and DL 89 Captured curves Setting up captured curves e Evaluation Mode evaluates the noise levels against specific criterion This is primarily used when you are capturing one to four different curves With 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 study To assign a new captured curve name you return to the Options menu select a name and then return back to view session mode and run your study NOTE Whether yo
40. toggle between On or Off 8 Tochange the Logging Interval press Up Down ASN to select Interval a Press Enter O to move to the data field e 1 minute To change the value repeatedly press Up Down Ae until the appropriate minutes or seconds are displayed b Press right left arrow to move back to interval field 9 To return to the Start screen repeatedly press On Off Esc amp button Setting up display options The display s backlighting contrast and language characteristics can be customized to suit your needs and preferences These settings are available in the Display screen Figure 3 9 setup DISPLAY LANGUAGE BACKLIGHT CONTRAST lt lt elt el e Figure 3 9 Display setup screen SoundPre Models SE and DL 34 Setting up display options Language Language You can choose a different language for the displayed text A change in lan guage takes effect when you exit the Language screen gt Changing the language 1 Ensure you are at the start screen e If turned on repeatedly press onioffiesc amp until you return to the start screen see Figure 3 3 above e To turn on press and hold On Off ESC unti the start screen appears 2 Press Up Down W to highlight Setup and then press Enter a 3 Select Display by pressing Up Down Aw to highlight and then press Enter 5 4 In the Display screen ensure Language is highlighted or press up down arrow to select and press Ent
41. 2 con denser 200 volts must be set to On Use for general free field measure ments QE4170 Pressure Class Type 1 optional 1 inch diameter 938 con denser 200 volts must be set to On Use for coupler measurements audi ometer calibration low frequency measurements low level measurements due to low noise floor or as a laboratory standard Characteristic BK4936 QE7052 QE4110 QE4130 QE4150 QE4170 Er set a w Ge Ge Diameter inches inches Response i Field Field EEE Field Es Field a Field characteristic Frequency response 8 Hz to 20 kHz 20 Hzto 17 20 Hzto 5 Hz to 24 5 5 Hz to 20 3 Hz to 10 2 dB a 24 TS kHz mE on a EE a gt e 494 1 Seat a e oe se a a 10 CAE e EE WC O ga Glen a E e e range dBA min o dB Peak Peak ue un pF 059 523 056 317 059 413 058 659 058 489 058 488 AC DC outputs Connector One 3 5 mm stereo plug connector for both AC and DC outputs AC output Meter 1 output and includes the frequency response setting for that meter The AC output is affected by the instrument s range setting DC output Meter 1 output and includes the effects of the time response and frequency weighing for the meter SoundPre Models SE and DL 131 Appendix A Communications ports Auxiliary For trigger signals and RS 232 communication USB Mini USB connector This port is used for data and file transfers between the
42. 325 kPa Relative humidity 50 Level 114 dB Frequency 1 kHz Microphone Capacitance 18 pf Microphone Sensitivity 28 dB Range 140 dB Angle d Mechanical characteristics Housing Stainless fiber filled ABS polycarbonate with internal EMC shielding SoundPre Models SE and DL 126 Appendix A Size 7 9 cm W X 28 2 cm H X 4 1 cm thick with preamp and microphone 3 1 W X 11 1 H X 1 6 thick with preamp and microphone e The width is measured across the face of the instrument The length which includes the preamplifier but not the microphone is measured along the longest axis of the instrument Weight 0 54 kg 1 2 Ibs including batteries Tripod mount Threaded insert on the back of the instrument Accepts a 1 4 20 screw Electrical characteristics While the instrument is operating from battery or external power it conforms to all applicable tolerance limits of the stated standards While operating on battery power alone the instrument will automatically shut down when the battery power is depleted The total battery voltage range is between the maximum overcharge voltage of the NiMH cells 6 6 volts and the low voltage automatic shut down voltage of 4 4 volts Power sources Internal power Approximately 8 hours of continuous operation at normal mode of operation under reference environmental conditions when full capacity batteries are installed Main batteries Four replaceable alkaline AA
43. 3M Personal Safety Division 3M SoundPro SE DL Series Sound Level Meters ai sl a 3 sd Een A e ef CAM i CR om a SoundPro User Manual 3M SoundPro Sound Level Meter Dangers Warnings Cautions amp Battery A Failure to observe the following procedures may result in serious personal injury e Not for use in explosive or hazardous locations This product is not intrinsically safe 4D warning Failure to observe the following procedures could damage the instrument e Read the manual before operation Do not store in temperatures exceeding 60 C 140 F Do not immerse in liquids Condensation may damage your instrument Substitution of components may impair the accuracy of the instrument Repair should be performed by authorized service personnel only LN caution General e The battery in this instrument has limited shelf life even if never used e Anon condensing environment is required for proper measurements The SoundPro is intended to measure sound pressure levels in air Consult your company s safety professional for local standards or call 3M at 1 800 243 4630 SoundPre Models SE and DL i Table of Contents TABLE OF CONTENTS INTOdCUCIO EE 1 Models and GE ee ae 1 Frequency FOSOMUILION E 2 Ver E EA 2 TRI We ee ale EE 3 Naming Dana ko EE 3 ANAYSSI TY DG eege a 5 LOGGING ROM Elte AAA PP 5 Physical e Lee EE 5 lee 5 Hardware Mer TEEN 6 METON ele e 6 BEE EE 6 PN DOM GE 7 Set T AOMA OM
44. 4 9 Secure Lock screen SoundPre Models SE and DL 48 Locking setup or run mode Setting secure run or secure setup locking 3 Skip this step if securing setup and see step 4 To set Secure Run Mode press Enter and 0000 will appear NOTE if you want to set the code as 0000 press Enter repeatedly until enabled appears This will be the unlock code Lo e Selected value is shaded e Enter code by pressing up down arrows to change value e Press enter to move to each field SECURE SETUP MODE DISABLED Figure 4 10 Adding code for secure lock screen e To select a numeric code press Up Down arrows to select a number press Enter to toggle between the fields e Press Enter a to Enable e Press On Off Esc key to return to the Start screen When you are ready to run a session press the Run Pause key and the Secure Run Mode prompt will appear See Disabling secure run or secure setup below for details on stopping the run mni gt gt 00 05 15 LOCK SECURE RUN MODE To unlock unsecure Press lock softkey and LOCK then enter in code Figure 4 11 Secure lock run prompt SoundPre Models SE and DL 49 Locking setup or run mode Disabling secure run or secure setup unlocking 4 Toset Secure Setup Mode ensure it is highlighted by pressing Down arrow Once selected press Enter and 0000 will appear See Figure 4 10 for a screen example Also you must be in s
45. 8 eSP SE 2 1 1 eSP SE 2 1 3 eSP SE 1 1 1 eSP SE 1 1 3 Reverberation eSP DL 2 1 1 eSP DL 2 1 3 eSP DL 1 1 1 eSP DL 1 1 3 Figure 1 1 SoundPro Models SE and DL and Option 1 and Option 2 SoundPre Models SE and DL 2 Frequency resolution Octave bands Frequency resolution The sounds we hear are rarely pure tones at a single frequency but rather a mixture of frequencies of varying amplitudes Some sounds such as a whistle or a horn have frequencies concentrated in relatively narrow regions of the audio spectrum which ranges from approximately 20 Hz to 20 000 Hz Other sounds more generally thought of as noise include components from many regions of the entire spectrum When analyzing sound as noise we usually are concerned with the total impact of the sound signal In other words we are usually satisfied with a broadband measurement of sound in the environment When we are seeking to isolate a sound from other sounds for instance to detect the source of a sound or to measure how much particular sounds contribute to the overall sound level we may want to look at the frequency components of the sound Octave bands The ability of an instrument to separate a signal into its frequency components is known as a spectral analysis In sound pressure measurement the audio spectrum is divided into adjacent frequency bands called octaves where the center frequency of each octave band is twice the center frequency of the octave band direct
46. DC output is linearly scaled over the range of 20 to 180 decibels The highest level that can be represented on any selected range is always the ceiling of that range and depends upon the selected microphone model The DC output voltage level is related to the measured decibel value without regard to the range setting You can calculate the SPL in decibels from the DC output voltage Vpc by this equation SPL 50 Voc 0 4 dB SoundPre Models SE and DL 124 AC DC output DC output This page left blank intentionally SoundPre Models SE and DL 125 Appendix A APPENDIX A Specifications Conformance to standards Acoustics IEC 61672 1 2003 2002 05 Electroacoustics Sound level meters Part 1 Specifications IEC 61672 2 2003 04 Electroacoustics Sound level meters Part 2 Pat tern evaluation tests IEC 61260 1995 08 Electroacoustics Octave band and fractional octave band filters ANSI 1 11 2004 American National Standard Specification for Octave Band and Fractional Octave Band Analog and Digital Filters ANSI 1 4 1983 R2001 American National Standard Specification for sound Level Meters ANSI 1 43 1997 R2002 American National Standard Specifications for Integrating Averaging Sound Level Meters Earlier standards IEC 60651 and IEC 60804 EMC emissions and immunity Pending testing on production products References Air temperature 23 C Static pressure 101
47. Date Time e Setting Measurement type SLM 1 1 1 3 STI PA e Setting up Meter 1 Meter 2 parameters e Setting up Exceedance levels e Setting up Logging e Setting physical settings backlight on time contrast choosing a language e Microphone settings With Class Type 1 models the microphone s sensitivity range cap and polarization can be checked and or changed in the Signal Input menu when stopped Alternatively Class Type 2 models settings are viewable at any time the session is stopped but cannot be modified The following table displays the required microphone settings Signal Input BK4936 QE7052 QE4110 QE4130 QE4150 QE4170_ Polarization v o o 200 200 200 200 Table 3 1 Required microphone settings SoundPre Models SE and DL 24 Basic setups Changing microphone settings Changing microphone settings gt Microphone settings This procedure applies only to Class Type 1 models 1 Turn on the SoundPro SE DL by pressing On OffiEsc UY e lf turned on ensure you are at the start screen by pressing On Off Esc 9 repeatedly until you return to start screen see Figure 2 10 2 Press Up Down Aw arrows to highlight Setup and then press Enter 3 In the Setup screen select Sig Input then press Enter The Signal Input screen appears setup SIG INPUT Menu path displayed A Sensitivity Sensitivity B Range Cap Range Cap C Polarization Polarization OV
48. File Setups Config Creating Or SAVING cccoocccccccccnccnnnnnnnos 118 Files Loading and deleting 115 Naming RenaMing occcccoccnnnccccnnnnnncnno 117 FSetup Files Config Creating Or SAVING cccseeeeeeeeeeeeenees 118 GPS EXDIGINGG ee Seege 54 SEUNG EE 55 Hardware interface aennnennnennnennnennneane 6 Indicators Explained oooccoccccccccccncocccnocococnconcnnnnnnos 20 Information screen Explained EE 8 Keypad Example ein 18 EXDIAINGG WEE 19 L EQ Rate cance ete a ee 140 L mn DESTINO EE 141 L mx o ME 141 Lo Deimmed 141 LDN VA WE 141 Level Let BIZ errata ise 140 Level triggered Screen explained ccceeceseeeeeeeeeeees 44 LOCK e WEE 47 LO to PO nai cit 53 Logging 1 A 141 Setup screen 32 Measurement Changing Display 66 Explained coocccccnccocccccnoconncocnnnonocanonos 29 JS 57 Octave LE 2 OVEN VICW getest 58 A cueeetecenaaes 60 Setting measurement wpe 26 Third octave band 3 Measurements Audiometric background curves 94 Al CHAM sxe aise ae Sere hind lara tees 68 Changing what is displayed 66 Community NoiSe occccoocccccccccnccnnccncnnnnnnos 69 Criterion CUIVES oocccocccccccnccncnnconcnnoncnnnns 91 Curves evplamned 87 Dosimetry screen 70 Filtered bar chat 68 Indicators descriptors oocccconcccooo 67 Navigational screens explained 65
49. G PRN LOG to Port BAUD RATE 4800 Press Enter key repeatedly to activate Figure 4 16 Log to Port SoundDPr0 Models SE and DL 54 Communications GPS GPS The SoundPro has the capability of embedding GPS information into study headers To interface a GPS you need a GPS receiver with RS 232 communications that conform to NMEA 0183 version 2 and the optional 053 729 Serial Cable In many cases a Male Male DB 9 null modem connector will be required as well The SoundPro will keep a GPS fix for up to 1 minute before declaring it invalid at which time No Fix will appear if you are in the COMM SET menu In other screens where a RUN may be initiated GPS or GPS is momentarily flashed in the Right Soft key indicating either a valid fix GPS or an invalid or timed out fix GPS 7 NOTE GPS time can be viewed in the Comm Set screen but is not used in the instrument or added to session files Time and date stamping in session files uses information that is manually entered Time and date on page 25 or downloaded from QSP II Information screen on page 8 GPS display You can view GPS data in the Comm Set screen The position coordinates are stored in each study when GPS is enabled and can be viewed with DMS see page 9 for details E setup COMM SET USB QSP Serial GPS selected RS 232 GPS BAUD RATE 4800 NO Fix indicates GPS is not NO FIX connected or not reading from GPS
50. LDN Press Enter to move to data field and continue to press Enter to toggle between On Off setting SoundPre Models SE and DL 29 Basic setups Measurement setup for community noise e CNEL Press Enter O to select data field Press Enter repeatedly to toggle between On Off setting e Lbe a Press Enter to select data field If marked N A see C A measurement settings e TAKTMX Press Enter a one or more times to select 3 sec 5 sec or Off 6 To change other measurement settings repeat steps 4 5 7 When finished press On OffiEsc to exit the screen The following table explains your selections in the Measures screen Please see Appendix B Glossary of Terms for more details L1 L4 Exceedance TAKTMX Table 3 2 Measures screen explained L1 L4 are types of exceedance levels This is defined as the level exceeded by the measured noise level for an identified fraction of time Exceedance levels may be calculated for many time fractions or percentages e Optional Settings Set to Off or to a percentage value of your choice 1 99 Representing the Day Night sound level this measurement is 24 hour average sound level where 10 dB is added to all of the readings that occur between 10pm to 7am Please see glossary of terms for more details e Optional Settings Set to Off or On Community Noise Exposure Level The accumulated exposure to sound mea
51. MCASUNE iccseccseess ne nictecererncscssseseceneccetweencteeseeeicecaesacceecneccueetennsshecnanace 59 Sessions ana SU GICs eet egener eats eee wees eo ene eee 59 SoundPre Models SE and DL V Table of Contents leiere a e 60 erte 61 Galbra don serena desc do ines 61 es AN OM DEE 61 PO Si IO Re OM O 61 PEMOMMING a CAMILA WE 62 Running BE TEE VE 64 Measurement navigation ccccesceseeseceeeeeeeeeeeeeneeeeseeseesensenseneenseneseeseesensensoneeness 65 Using softkeys in measurement SCreenS occcoccncoccncocnncncncnncncnncnonnnnnnnnnonnnonnnnnnnnnnnnnnnnnnnnnnnnnnns 65 Changing displayed measurement 66 Analysis type time response and weighting n nnannnnnnnnnnnnnnsnnnnrnnrsnrnnrnnrnnrnnrnnrnnrnnrennne 66 Measurement screen ICONS occoccccccccnnnonconnnnnoncnnncnnnnnrnnrnnrnnrnarnnrrarrnnrnnrnnrnnrnnrnarnannn 67 Descriptor TY DCS sli a a a 67 Measurement SCICOINS iia a 68 Bar Chant ana Fitered Bar A an a a a ede ete eens 68 Community NOISE SCION EE 69 POSITS YS CC EE 70 Dosimetry measurements EE 70 TADUIATION SCreenS esse iii ii 71 1 1 and 1 3 octave analysis measurement results cocoooncccccoccnccnoccnccnnnonononnnnonnnononnncnnnnnnnnnos 71 Time History Back raSe screen occocccoccocccnncocnconccononanonnnnnronnnnnnnnnrnnrnnnrnarenarnnnenanos 72 BS AGH SON ch AA A AAA AAA AAA A AAA AAA EA AAA AAA 72 EE EE sosar A e cae 73 SUOPDING 4 SESSION DE 75 STOPPING a a DAUSIIAG is oi cota cats dla 15 RT60 Curves
52. O 17 Impulse noise method ees 79 Interrupted noise method 79 Reverb time H Ton 78 Reverb Time example chart 78 RT60 measurement mode 83 RIGO E 82 ele Beet le EE 80 Setup screen 80 Review lao AA 20 Review mode 113 Room Criterion Curves RC De MMS listada 145 Run NICO tit 20 COCA e 47 Run Mode securtv 46 Running Quick help lei 58 Saving SOU 118 Screens general Mi 18 O een ee en ee 16 Screens setup Battery ee 16 EN el ln EE 54 Screens time history back erase 72 Screens viewing Community noise occccocccccccccnccnnccncnnncnnos 69 Dosimetry screen 70 Phe E ahd ae ge es caren aunt 112 Filtered bar chat 68 CONS ds 67 Past Meaeurements 115 H H GE 104 PADUA OM ENN 11 Tabulation screen 71 A aca er aa netias 12 Screens Viewing Baiona dto Do 68 Screens viewing A A A 64 Secure mode Disabling and backup number 49 Secure run ADO Uan 46 Secure run setup A ne e EE 47 Secure setup ADO Ur ici 46 Secure DA lUPrut add 49 SEL REN 145 Sessions Evplained A 59 Jako elei fie in HE 15 SCENA O id 59 Setup files Config A 119 SoundDPo Models SE and DL 154 Index LOAN WEE 119 Setup files Config MISWINO WEE 119 Setup screen Auto run with date of week 40 Sei als EE 35 COWMMAS EE 36 MTI TEEN 33 Eiter let 34 Measaurement type oocccocccccnccccnocnnnncoos 26
53. Room Criterion curve s was introduced in 1981 by Blazer to primarily rate noise in offices room acoustics This methodology calculates a numerical rating based on speech interference and indicates any interference such as hissing rumbling or vibration SEL Sound Exposure Level The continuous SPL lasting one second that would deliver the same sound exposure as an accumulated exposure determined over a sampling interval RTime SEL is typically determined with a 3 dB Exchange Rate slow exponential time weighting and without regard to an Integrating Threshold RTIME SEL ER log SEH d dB 0 SPL Sound pressure level A ratio of one sound pressure to a reference pressure See Reference Pressure on page 141 Because of the enormous dynamic range of the human ear the ratio is calculated logarithmically by the formula below where L is the reference pressure SPL 20 log dB L SoundPre Models SE and DL 146 Appendix B Taktmx A time average over a sampling interval that uses the highest level occurring during the preceding Taktmaximal Interval either three or five seconds and assumes that it was present for the whole Taktmaximal Interval Third octave band A Third octave band is defined as a frequency band whose upper band edge frequency is 1 26 times the lower band frequency Threshold An SPL value that defines a lower level of acceptable values Only SPL samples that exceed the threshold are used in some calcula
54. SAA A A Figure 3 1 Microphone Settings Signal Input screen 4 Signal Input options are explained below refer to Figure 3 1 above A Sensitivity Calibration parameter for the selected microphone This is a nominal value in decibels relevant to 1V Pa B Range Cap Top of the measurement range for the microphone instrument combination In any screen showing a decibel range this setting affects the maximum value C Polarization A value of the polarization voltage for the microphone Some microphones have an internal polarization while others require a polarization provided by the instrument 5 To change a signal input field press Up Down MAY arrows to highlight specific field s SoundPre Models SE and DL 25 Basic setups Time and date 6 Press Enter a The result will be one of the following 2 For Sensitivity and Range Cap fields The highlighting moves to the data field Press Up Down Aw arrows to change the value e Polarization field Polarization remains highlighted Continue to press Enter di to change or toggle the value from O V to 200 V 7 Once desired fields are changed press On Off Esc QB twice to return to the Start screen Time and date SoundPro SE DL uses a 24 hour clock and specifies date by month and year gt Changing time and date settings 1 Turn on the SoundPro SE DL by pressing On Off Esc Q e If turned on ensure you are at the start screen by pressing On Offlesc repeatedly un
55. Screen ias dali 70 Tabulation screen for octave flterng 71 ES ACK CE AS Mia dada 12 Time Log RE E 74 Stopping and Pau siMg a t 75 A a cdh wee ee caste a heads a isus N dua lsha 78 Interrupted noise example cece ccceecceeeeeeeeseeeeaeeeseeeseeeeeeeeseeseesaeeeseeeseeesaees 79 Reverb Time Setup Serena ias 81 Reverb Time Setup SCreeNn id Sa 83 RTO0 Dar Giant Score ici ceca 84 Decay Curve EE ee eebe 85 Tabular octave filtering RT ecreen 86 Selecting measurement type for Curnves 88 Captured Curves and Survey mode 89 Selecting 1 1 or 1 3 for measurement fvpe ccc cece ceeeeeeeeeeeeeaeeeeeeaeeeeeseeeeeeas 90 Capturing a Curve CAP 1 ooooocccooccccccoccccncccnncnoccncnnncnnonnnnnnonnnnnnnnnrononnnnnnonnrnnnnnnnnnos 91 Selecting measurement type for cunves cece eeeeeeeeeeeeeeeeeaeeeeesaaeeeesaeeeeeas 92 Curves setup Screen example ooocccocccccoccccoccnccccnconcnononnnonnnncnnnnnonononnnnononcncnaninnns 93 1 1 or 1 3 octave measurement type for audiometric testing 0000nn00nne001n10an 94 Selecting measurement type for Curnves cece eeeeeeeeeeeeeeeeeaeeeeesaaeeeesaeeeeeas 95 Audiometric booth setup in the curves screen 95 SoundPre Models SE and DL XI Table of Contents Figure CN kk e e 97 Figure 6 18 Measurement type selechon GflbA 101 Figure 6 19 STI PA Setup SCreeN oooocoonccccccccccccoccnccnoconcnoncnnononcnnonnnnnnnnncnnnnnnrnnnnnnrnrrnnnrnnonrnnenannnns 102 Figure 6 20 Level set up and avera
56. Setting Date parameters for Auto Run 1 7 To enter Start S Time and Duration D Time it is important to note that the settings are formatted as Hours Minutes Seconds and based on a 24 hour clock In Figure 4 3 the Start time is indicated as 16 30 00 which is equivalent to 4 30pm To Set press Up Down arrows to increase decrease values To move between each increment press Enter y 8 To set additional Auto Runs repeatedly press Enter until Auto Run is highlighted Then press Enter to toggle on the Date and Time settings Then follow steps 5 7 9 To exit the screen press On Off Esc Ga repeatedly until you return to the main screen Press and hold the On Off Esc ic power off SoundPre Models SE and DL 40 Setting up auto run Days of week setting NOTE To enable Auto run ensure the instrument is powered off and the date and time settings were programmed for the future 10 When powered off an Auto Run shutdown screen will appear Please see section Auto Run shutdown screen Days of week setting The Days of the Week DOW setting is a pre programmed weekly auto run with specified days start time duration You can pre program two auto on settings with Sunday through Saturday parameters one specific start time and a specified duration for each auto on setting See Figure 4 4 as an example for settings SI NOTE In order for the Days of the Week mode to autorun ensure the instrument is in the
57. TO Se VE 38 SoundPre Models SE and DL IV Table of Contents Setting Up alto EK ee 38 Date Selina cu o a 38 DIS O WEEK Sci dde ec td e rd tee 40 Auto run shutdown screen 42 Auto run shutdown screen evplained cena esse eeseeesaeeseeeseeeseeeseeeseeeeeeees 42 aio aa a AAA e o PO II a a a 43 L evel trlggered E e Ee ue EE 44 Locking setup or run MOG cooncocconccccccccnncnncnnnoncnncnnncnnonnnnnrnnrnnrnnrnnrranennrnnrnnrnarnnnnanes 46 Setting secure run or secure setup lOCKINQ oocccocccoccncocnncconocnnnccncncnnnncnanononcnonononnnnos 46 ADOUL SECUTS RU tencia 46 PDOUL SOCUIE UU lea 46 Disabling secure run or secure setup unlockmg 49 Secure code backup NnUMbeT asia ias dci ai 49 Digital outputs TriggGering ccoccccccoccccnnoccccnnonnonaronnonaronnnnnnnnnonnrnnnnnnrnnnrnarrnnrnarenanon 50 TAC leien Te 50 Digtakoutputs and S E ete decada 51 COMMUNICATIONS isco esis se cca ees ess eee 51 E EE 52 Ee e e EE 52 Viewing real time measurements remotely 53 SPS EE 54 SPS CISDIAY css eet acts caste o ae eta eri ican 54 GPS explain EE 54 Preparing to measure amp FUNNINQ occocccocccnncocncnnnncnonncnnnnnnnnnncnnnnnnnnnrnnnnnarrnnrnanenanon 57 WIFLUAMIMGUCES as a 57 Meter 1 Meter 2 Es 57 Measurement notation IEC SO ooocoonccccconnccninonoccconnocccnncocnnnnrnanonanonnnnnrnnncnarnnnnnans 57 Overview of running a SESSION StUAY ccocccocccccconccccnnncnoncnanonannnnnnnnnanonarnanennnnannnans 58 Preparing tO
58. The 1 3 octave filters are flat within lt 0 3 dB in each passband The half power points are at 0 89 f and 1 12 fo Third octave skirts With respect to f the f 2 and 2f frequencies are both approximately 50 dB down Instrument noise Noise floor depends upon which microphone is being used The following measurements are for a typical instrument with the 059 703 adapter 18 pF connected to the preamp and shorted at the BNC end This condition closely simulates the noise floor of a inch microphone For these measurements the instrument was set to the lowest range and to a slow response time e 22 dBA e 30 dBC e 35 dBZ e 40 dBF Environmental effects The typical time interval needed to stabilize after changes in environmental conditions is 5 minutes for each 10 C change Temperature Operating Less than 0 5dB effect over 10 C to 50 C 14 F to 122 F Storage 25 C to 70 C 13 F to 158 F SoundPre Models SE and DL 129 Appendix A Humidity 10 to 90 RH non condensing User interface Display Size 128 x 64 pixel display that measures 6 cm x 4 8 cm 2 4 x 1 9 Lighting Transflective to take advantage of ambient lighting plus fiberoptic backlighting that can be manually operated or set to turn off after a timed interval Keypad Construction Molded layer that holds fourteen press sensitive buttons Buttons Five buttons have dedicated control functions another five are pri
59. able only under these conditions e Analysis type Back erasing is unavailable for filtered studies e Viewing areas You must be in either the View Current Studies or View Session viewing area Back erasing is not available in View Past Studies e Restricted to the pause You can back erase only during the pause that follows a study Back erasing is not available for past studies in the session e Not all studies Because back erasing requires a manual intervention it is unavailable for triggered or Auto Run studies SoundPre Models SE and DL 73 Back erasing Results of back erasing Results of back erasing Back erasing causes the following changes to the study and to the session in which the study occurs Run times The run time of the back erased study is shortened by the duration of the removed segment The run time of the session is also reduced by the same amount Measurements All measurements that use data that was removed by back erasing are corrected as appropriate For example if the maximum SPL had occurred in that erased segment the instrument re evaluates the remaining data in the study to find a different maximum value Meters Back erasing applies on the same basis to both meters Storage The session file is corrected to reflect the new run times and other changes that resulted from the back erasing Back erased raw data The raw data that you removed by back erasing is saved in the sessi
60. able see step five press to select appropriate file and press Delete softkey see a TI DAY will state the file was deleted Press a key to return to d Data File screen To delete more files repeat this step Press PB repeatedly to return to the start screen DI DATA FILE S001 S002 S003 S004 a b c Data File screen e Retrieve your past session studies by selecting a file Softkeys DELETE LOAD MORE Delete a Load b More c E e eo Softkey menus Figure 7 7 Loading and deleting files NOTE You may have dozens of files saved Press the More softkey to 5 expand the file list for the appropriate selection If you loaded a file please see next section Viewing past sessions studies Session directory The Session Directory contains the past saved sessions and studies To navigate to this screen select Setup File softkey Session Directory menu Refer to Figure 7 2 and Figure 7 3 for screen examples Il DATA FILE S002 S003 S004 DELETE LOAD MORE Session Directory Configuration Dir ectory SoundPre Models SE and DL 117 File directories Session directory Navigating in a session config directory Press any arrow key to move around in the directory If there are multiple files press the More softkey to navigate to additional screens Press On OffiEsc ES key to return to previous screen s Naming and renaming files There are commo
61. alibrate in Chapter 6 or additional information about calibrators Studies and sessions Run time clock Duration of every run and session shown in screens as well as added to the session file Manual operation Run Pause and Stop keys Programmed operation Three Auto Run modes e Date four options e Day of the week any time on any day e Timed future start time Triggered runs Trigger on measured SPL or on external input Triggers can start a study then either pause in the session or stop the session Triggered outputs Output logic signals related to run status Special features Security Runs Prevents the pausing of a study without first providing a 4 digit code Setups Prevents the changing of settings without first providing a 4 digit code Codes Run and setup security can use different codes SoundPre Models SE and DL 133 Appendix A Back erase Erasing Up to 20 seconds of sampled SPL data can be removed from the end of the last study When removed all calculations based on the removed segment of data are immediately updated Editing The length of the back erased segment can be edited Storage Data removed by back erasing is retained in the session file Logging optional Measurements User selectable for each of the two meters Includes two measurements of exceedance for Meter 1 only for logging intervals equal or greater than one minute With filtering If a filtering option i
62. and Meter 1 Meter 2 parameters on page 27 Measurement screen icons The measurement screen descriptors and icons identify certain conditions that exist currently in the display Press Alternate Functions key to toggle the contents of the Softkey Region until you see the Viewing Descriptors When the Viewing Descriptors are displayed an Alternate Functions icon appears below the battery icon The Broadband chart figure below displays an example of these icons and descriptors Alternate a a 00 1 0 3 functions icon 40 90 52 5 aa Lerea SES Viewing n e EE descriptors SS SY ATAM Figure 5 8 Example measurement icons amp descriptors Descriptor types Session identification This field tells you the name of the session that you re viewing either the current one or the one you loaded before entering the viewing area Study identification This field which appears only when you re viewing a study identifies the sequential number of the study in the session 01 99 Measurement label This field identifies the displayed measurement in IEC ISO notation Table 5 4 Measurement icons and screen descriptors explained SoundPre Models SE and DL 68 Measurement screens Bar Chart and Filtered Bar Chart Measurement screens Bar Chart and Filtered Bar Chart The first screen you ll see in a viewing area contains a bar chart for broadband or filtered measurements For the bar chart screen the amplitude o
63. and Date Settings ee A el ee ae 25 Figure 3 3 Measurement type and start screen 26 Figure 3 4 Meter 1 and Meter 2 parameters coooocccoccccocccccnccnonncnconcnconcnnnnacononcnconcncnnannnnnnnss 27 Figure 3 5 Measures screen for community noise settngs nne 28 Figure 3 6 C A measurement settings for Meter 1 and Meter 2 30 Figure 3 7 Logged Data Chart example ocn eli hoc Ree EE AA ee 31 Figure 3 8 Logging screen explained oooccooccccoccccocccconcoconcnnnnncnnnncncnncnnnnannnnncnnonrnconcnnnnannnnnnnss 32 Figure 3 9 Display Setup Scree EE 33 Figure 3 10 Language screen E 34 Figure 3 11 BacKlIgHt SOU ici A AAA RTS AER RR 35 Figure 4 1 Auto Run with Date selected coocccooccccocccconcnconcnconcnnnnnnnnoncnnoncnnnnnnnnnannnnnnnos 38 SoundPre Models SE and DL X Table of Contents Figure 4 2 Figure 4 3 Figure 4 4 Figure 4 5 Figure 4 6 Figure 4 7 Figure 4 8 Figure 4 9 Figure 4 10 Figure 4 11 Figure 4 12 Figure 4 13 Figure 4 14 Figure 4 15 Figure 4 16 Figure 4 17 Figure 4 18 Figure 5 1 Figure 5 2 Figure 5 3 Figure 5 4 Figure 5 5 Figure 5 6 Figure 5 7 Figure 5 8 Figure 5 9 Figure 5 10 Figure 5 11 Figure 5 12 Figure 5 13 Figure 5 14 Figure 5 15 Figure 6 1 Figure 6 2 Figure 6 3 Figure 6 4 Figure 6 5 Figure 6 6 Figure 6 7 Figure 6 8 Figure 6 9 Figure 6 10 Figure 6 11 Figure 6 12 Figure 6 13 Figure 6 14 Figure
64. anges each with different minimum and maximum values For more information about ranges please see Ranges in the Specifications in Appendix A on page 123 SPL value Depending on if you have the instrument set to measure basic sound level measurements see A below or filtered sound level measurements see B below the following two types of screens may appear The level increases or decreases in relation to the range selection AM o 00 00 00 wii RM 00 00 00 50 140 ceil dB Leseg GO F s a c z F METER A C Z F METER 1 Figure 5 1 Bar chart screen A and Filtered Bar Chart B SoundPre Models SE and DL 61 Calibrate Calibration screen Calibrate 3M recommends calibrating your Verifier before you run a STI PA measurement and after to ensure highly accurate measurement results The microphone should be calibrated before use for a number of reasons First the microphone is sensitive to humidity and pressure changes Calibrating before taking measurements assures that your level measurements are accurate for the current environment Performing a calibration verification post cal allows you to verify that conditions have not significantly affected your readings Calibrating also serves the dual purpose of checking the microphone for significant damage such as a torn or contaminated diaphragm You can calibrate the instrument in the field with reference to the output of a calibrated sound sou
65. artment The lid should fit snugly when correctly inserted SoundPre Models SE and DL 15 Providing power Battery power explained 5 Press the top edge of the lid to snap it into the latch 6 Verify or set the type in the Battery Check screen See the next section Checking battery power Battery power explained The battery check screen is used to determine the battery power status of the instrument When operating on batteries the grey area in each cell graphic indicates the charge on each cell Figure 2 5 When operating on an external power source see next section external power sources the external power will take precedence over batteries if installed Battery indicator AN F If all bars appear up to starting line this setup BAT CHECK Externally powered indicates full battery B1 B2 B3 55 If using an external power power source EXT will appear and all batteries will be fully shaded indicating full power capacity Figure 2 5 Battery check screen Checking or changing type The battery type selection in this display affects the accuracy of the Battery Indicator that appears in many SoundPro SE DL displays NOTE It is recommended to match the battery type to the type of batteries installed in the instrument or you may experience an unexpected shutdown SoundPre Models SE and DL 16 Providing power Checking or changing type gt Battery Check screen 1 Turn on the SoundPro SE DL by p
66. ata SoundPre Models SE and DL 60 Preparing to measure Measurement range Measurement range You select the decibel range before running the first study in the session Setting the measurement range helps keep the desired measurements within the linear range of operation If you don t make an optimal range selection low levels of sound can be hidden in the instrument noise below the noise floor of the instrument and high levels of sound can be distorted the instrument is overloaded Measurements at these extremes are invalid For information about these and other terms that may be unfamiliar to you see the glossary in this manual Appendix B Glossary gt Measurement range selection 1 Range From Start screen select either View Current Study or View Session The bar chart screen appears To select press Aw arrows and then press NOTE The bar chart screen may appear with a different measurement displayed and a different range This is dependent on the settings you may have selected For more information please see Measurement Type on page 26 Depending on if you selected basic SLM or applied 1 1 or 1 3 octave band filters a bar chart screen or a filtered bar chart screen will appear press Aw This changes the range and the change is confirmed in the screen in two ways e Ranges A different range may appear each time you press an arrow key The instrument provides eight selectable r
67. batteries included as original equipment Rechargeable NiMH batteries available as an option e Battery life Constant run without backlighting Varies greatly depending on whether alkaline or NiMH batteries are in use and the logging configuration You can expect the longest battery life when using rechargeable 2700 mAH or greater cells Battery life is slightly shorter in units that contain either filter option e Battery life Constant run with backlighting Will reduce battery life by approximately 10 Auxiliary battery Internal battery protects against loss of settings when the main batteries are being replaced SoundPre Models SE and DL 127 Appendix A External power External DC power may be provided to the Power jack from the AC or DC sources identified below Power consumption will range from 1 0 1 5 W at 8 16 VDC e 8 VDC 125 to 190 mA e 12 VDC 85 to 125 mA e 16 VDC 60 to 90 mA AC power source Optional switching type power supply 3M part num ber 053 571 e Supply input 100 240V 47 63 Hz e Supply output 9VDC 1 1A max e DC connector Cable has 2 1mm plug center pin positive e AC adapters Included are different snap on adapters that allow it to plug into various outlets DC power source 3M offers a cable as an option that plugs into an auto mobile auxiliary jack 3M part number 053 870 9 0 Volts is the nominal power supply voltage to be applied to the DC power jack Preamplifi
68. bles page is noted as the panel layout view page A The session study data page displays the data in logged data charts tables see A ER mme B Click on to view the panels in a report format PasOOhecas ver eeu ced ccd nn See E AARM z SoundPre Models SE and DL 123 AC DC output AC output AC DC output 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 134 AC output The AC output is the amplified SPL of Meter 1 It is weighted depending on the A C Z or F selection for Meter 1 The maximum full scale output voltage occurs near the upper dB level of the selected range and is approximately 3 16 volts before clipping The full usable range of this output is 60 dB The relationship is shown in Table 8 1 Relative dB Output Vrms Full scale 10 dB 20 dB 0 316 30 dB 0 100 40 dB 0 0316 50 dB 0 0100 60 dB 0 00316 Table 8 1 AC output NOTE The AC output signal is not intended to be used for testing instrument performance DC output The DC output has a voltage range between 0 and 4 0 VDC that is produced by Meter 1 and includes the time response and frequency weighting settings for that meter It represents and tracks the displayed dB level in one second increments The
69. brating Loading a study file setting Lock secure settings and many more options 8 Softkeys The Softkey buttons correspond with the softkey menu Please see Figure 2 10 above The Altf button or Alternate functions is used to expand the softkey menu at times Used frequently to execute an action Typically used after you have first pressed one or more arrow keys to make a selection 11 Right arrow Used to navigate right through menus and or data 12 On Off and ESC Used to turn on the SoundPro turn off and to Escape or move back one screen Table 2 1 Keypad Explained SoundPre Models SE and DL 20 SoundPro functionality Indicators explained Indicators explained Status information is provided by the instrument at the top of the display Below is a summary of all of the indicators eet Battery charge status This icon shows the status level of the UI batteries A full battery indicates one of the following e externally powered e or the SoundPro is fully charged Run state This icon appears when a study is running Paused state This icon appears when the current session is open but paused Stop state This icon appears when the current session is stopped Review mode When the pause and stop icons appear this indicates that you are viewing a saved file this indicator appears and remains lit until the beginning of the next study Underrange condition When an underrange condition occu
70. calibration values in the display WP RM 00 00 00 CAL CALIBRATE CALIBRATION HISTORY PRE CAL 114 0 dB 11 54 19 30 JAN 2009 Figure 5 4 Calibration history screen Press onlofiiEsc amp key to exit the Cal screen For a Post Calibration ensure the SoundPro is in Pause mode Essentially run a measurement and press the run pause key The Pause indicator will appear at the top of the display Then repeat the Calibration steps above and press Enter to store the Post Calibration information A sample screen is displayed below with post calibration history SoundPre Models SE and DL 64 Running a session study Performing a calibration We Il 00 00 15 CAL Pause indicator CALIBRATE CALIBRATION HISTORY Post Cal PRE CAL 114 0 dB Displays post 11 54 19 30 JAN 2009 calibration POST CAL 114 0 dB 06 22 18 30 JAN 2009 information Figure 5 5 Post Calibrate history screen Running a session study You run a session commonly called opening a session by running or starting the first measurement To run a study you would press pause and then proceed in the run mode This would save the measurement as a study Studies will be saved as you continue to run and pause your measurements Once stopped this will save as one session gt Running a session study 1 From the Start screen select either View Session or select View Current Study 2 To select press Aw arrows and then press a 3
71. chests nateas cect Litas eerie es enon awe ace ieee 121 Working with measurement data in DMS occoocccnccncccccnccnncncnnoncnononnnnnnonnnnonnnonannnnnnnnnnnnnnonos 121 DMS and working with SoundPro data 122 PRD OU OUI EE 123 AC OUMU orinn e ai a ea aa a a E a a 123 SoundPre Models SE and DL Vill Table of Contents Bleif EE 123 SPECIGI ONS a 125 Conformance to standardS cccccccececeecececceeeceneececeaceceneaceaeacsceneaceneansaeaeeneneaneaeas 125 ee ELE 125 EMC emissions and immunity occccoccccccncccnnoncnnnnancnnnnnnnnnonanonnnnnnnnnnnnnnnnnnnonannonannnnaninos 125 Mechanical CharacteniStoS iaa alada lis 125 Electrical characteristics NNN ENNEN ENNEN NNN NENNEN ENNEN 126 OWE er EE 126 NTS MIN AID OW EE 126 EXC al ale EE EE 127 Preamplifier removable 0 n00nnnnnnannnnnnannoannnnnnnnnsrenrrrnnrnrrronrrsnerrrennrrnrrrnrrsnernrennernrenne 127 ALETE SA A AEE AE E E A AA 127 A AA A A AA 127 Octave filters eege In TEE 128 Third octave filters OPTION alii ias 128 AAA A Ee 128 Environmental effects soii a ies 128 Kn ue sinaos a E A 128 PUNTON A A E E Aa 129 USOFINTOFaCO EE E EE 129 Brei 129 SIE RE 129 EPA A e O RO e a a 129 Ile dee 1 E Geceman aan tamaceoed enone etamaammaneaanceetecaeetes 129 le ei PONES a 129 ACDC OUMU EE 130 COMMUINIGALIONS e EE 131 Me Dill CHE 131 A E A TAE A E E E E E E A EAE E E 131 Set EN Measurement parameters tee 131 A E AT 132 CAMA did 132 Studies ANG SCSSIONS it 132
72. cleared of session data e Zeroed The RunTime clock is cleared to zero SoundPre Models SE and DL 76 Back erasing Stopping a session This page left blank intentionally SoundPre Models SE and DL CHAPTER 6 77 Additional options Reverberation RT60 Curves and STI PA Additional options In this chapter it is important to note that these features are additional add on options and may not be available on your SoundPro model unless you specifically purchased these features Please see 3M s website 3m com detection for more information e Reverberation e STI PA e Curves Reverberation Reverberation is the distribution of sound in an enclosed space after the sound is removed or decayed How is reverberation or reverb created in enclosed spaces A sound is generated in an enclosed structure with a combination of the direct sound source which travels from the sound source to listener by the shortest path without interfering with room surfaces and the reflected indirect sound source The total sound source echoes and decays as the sound is absorbed by the materials in the room i e walls carpet furniture concrete etc and air This is noticeable when the sound source stops but the reflections continue decreasing in amplitude until they can no longer be heard SoundPre Models SE and DL 78 Additional options Reverberation time RT60 Reverberation time RT60 Reverberation time is a measurement
73. curves that accounted for the lower frequency side of the criterion curves 1971 The PNC curves extended the range to 32 Hz instead of 63 Hz used in NC curves Projected time Prt A time interval used in some calculations usually different from the actual run time of a study or session Reference pressure The sound pressure at the threshold of human hearing as measured under standard conditions This generally accepted magnitude of this pressure is 2 x 10 5 Pascals Pa SoundPre Models SE and DL 144 Appendix B Response time F S I Selectable time response settings used in SoundPro SE DL measurements The response time is a standardized exponential time weighting of the input signal according to fast F slow S or impulse 1 time response relationships Time response can be described with a time constant The time constants for fast slow and impulse responses are 0 125 s 1 0 s and 35 ms respectively Impulse time response is 35ms rise with a constant decay of 2 9dB sec Relative response dB Burst duration t seconds Figure B 2 Slow response to a tone burst Relative response dB 10 20 50 100 200 500 1000 Burst duration t milliseconds Figure B 3 Fast response to a tone burst SoundPre Models SE and DL 145 Appendix B Relative response dB Burst duration t milliseconds Figure B 4 Impulse response to a tone burst Room Criterion Curves RC
74. cut Press a softkey to select a different character set SoundPre Models SE and DL 118 Configuration directory Saving amp naming setup file config file e Add a character by pressing the right arrow key e Delete a character by pressing the left arrow key e Repeat this step as necessary 5 When finished press Y and Save will appear 6 Press a to save the file name or press On Off Esc to cancel Configuration directory File Setups or File Configurations can be saved to the instrument in order to save and reuse for future This can also be performed via QSP II when you save a setup The naming renaming procedure below includes a lookup utility that you can use to determine what name to assign Saving amp naming setup file config file When saving a setup you first select the settings and then save via the Save Config File accessed from the File softkey in the start menu Once a configuration is saved you can view or delete it via the Config Directory gt Naming and Saving set up 1 Ensure the SoundPro is in Stop mode and the parameters are selected See Chapter 3 and Chapter 4 for details 2 Inthe Start screen press the File softkey and select Save Config File 3 Inthe Setup File screen press t move to the name rename file field DI Selected character indicated by the SETUP FILE underline Press up down to change FILE NAME character Press Left arrow to move to add another character Pr
75. cy band in 1 1 Octave or 1 3 Octave modes respectively Auto This is the default threshold setting The instrument will automatically chose the level and calculate RT60 When in run mode it sets the threshold relative to the noise level in the room It provides a trigger level which is customized to each band 40 dB 140 dB in 1dB increments The threshold decibel is user selectable between 40 dB to 140 dB in one decibel increments e For Interrupted Noise method level below this threshold will trigger the start of a measurement e For Impulse method levels above this threshold will trigger the start of a measurement Auto This is the default Measure setting The instrument will automatically pick the best Txx value based on the expected decay i e T 20 T60 T10 T60 The default setting is Auto The selected Txx value is the actual amount of drop decay the instrument measured The selectable ranges are T10 T60 Measurements are plotted and stored in 1 1 or 1 3 octave band chart and decay chart This field is only selectable if both 1 1 and 1 3 octave filter bands are installed features Otherwise the instrument will apply the installed filter Reverberation time set up options SoundPre Models SE and DL 81 Additional options Setting up reverberation Setting up reverberation The Reverb Time screen is used to change or view your reverberation settings The steps below outline how to chang
76. dPre Models SE and DL 42 Setting up auto run Auto run shutdown screen Auto run shutdown screen When either the Date mode or the Date of the Week DOW settings is enabled and you power down the instrument you will be alerted by an Auto Run Shutdown screen just before the instrument turns off This screen illustrated below appears after the normal power down countdown and remains visible for approximately ten seconds NOTE The Auto Run Shutdown screen never appears when Timed Run is enabled because that mode requires the instrument to be powered on Auto Run AR 1 settings Nl Lil e Date is displayed on first line e Start time ST and runtime RT is displayed on second line Auto Run AR 2 settings AR SZ Fri 10 MAR 2008 ST 15 00 00 RT 02 00 00 Displays the of pre programmed runs Auto Runs configured 3 Figure 4 5 Auto Run Shutdown screen Auto run shutdown screen explained The Auto Run Shutdown screen is a map of your auto run settings It identifies the mode the activated setups in that mode AR and the order in which the setups will occur If Auto Run is enabled in the Date mode and more than two setups are activated only the first two will be shown because of limited screen space If you power on the instrument after the first auto run has been saved view the study and then power off the SoundPro it will display the next two remaining auto run settings MT NOTE If the start time and date for
77. dicates the measurement values are invalid gt Viewing Tabulation RT60 screen 1 To view all of the octave band filters press the Up Down Arrow keys to page through the filters data results SoundPre Models SE and DL 87 Curves Captured curve applications Curves Curves also referred to as Acoustic Spectral Curves is used to evaluate the quality of noise in new or existing buildings The SoundPro models SE and DL support the following e Captured curves e Noise Criterion curves NC curves PNC curves NCB curves NR curves RC curves e Audiometric Booth Background Curves ANSI 53 1 OSHA and ISO AM Booth Captured curves Captured Curves is a user defined criterion curve which allows the user to make a measurement with a 1 1 octave band frequency or a 1 3 octave band frequency distribution and save or capture the spectral curve This snapshot can be displayed in DMS as a baseline or reference curve A new measurement is then made and superimposed over the captured baseline curve to illustrate octave band frequency deviations from the original distribution creating a user defined criterion curve This may be kept just as a reference or it may be used as an evaluation for product or process comparisons job task risk assessments environmental investigations and other applications Captured curve applications Application 1 Baseline Applying a captured curve as a baseline or reference curve for noise abateme
78. e Configuration Directory The File directories screen can be used to e View past sessions studies via the Session Directory menu e View Configuration directory e Re name last session file is an optional feature that is used as an organizational tool e Save Configuration file is used to save a customized setup on the instrument if not using QSP Il CAUTION The memory card should not be inserted or removed when working in the instrument s file system you can lose data File directory screen explained M NOTE this is accessible when a session is not opened i e run pause mode 1 From the Start screen press the File softkey The File screen appears In the File screen select Session Directory or Configuration Directory then press The directory that you requested appears iil FILE SESSION DIRECTORY Session Directory CONFIG DIRECTORY Used to load view previous RE NAME LAST SES FILE data delete or rename SAVE CONFIG FILE FORMAT CARD EA al ie eg Figure 7 1 File Screen Viewing past sessions studies review mode Once you run pause and stop your measurements the data is automatically stored in the instrument s memory card which is referred to as past studies or past sessions You can view past measurements by first loading the study SoundPre Models SE and DL 113 File directories Viewing past sessions studies review mode or session via the Data File screen The results will be p
79. e GPS receiver prepare the device to receive satellite signals 4 Inthe SoundPro SE DL Setup screen press the arrow keys to select Comm Set then press a and the Comm Set screen appears DR BR setup COMM SET USB QSP Serial RS 232 GPS Viewing GPS coordinates BAUD RATE 4800 N 43 4 W 88 28 Alt 278 M UTC 19 52 24 Figure 4 18 Viewing GPS coordinates in COMM Set screen 5 Press the down arrow to highlight RS 232 6 Repeatedly press a until GPS is displayed The Baud rate should be kept at 4800 unless otherwise specified by your GPS manufacturer M NOTES If you are not using RS 232 communications in any way you should keep the RS 232 channel set to the Off Lo Pwr setting SoundPre Models SE and DL 56 Communications GPS This page left blank intentionally SoundPre Models SE and DL CHAPTER 57 Virtual meters Meter 1 Meter 2 explained 5 Preparing to measure amp running This chapter explains the steps needed to prepare the SoundPro for measuring and how to run measurements It will also show you sample measurement result screens and explain the contents of the screens Virtual meters SoundPro SE DL operates with two parallel measurement systems called meters Each meter obtains the same input from the microphone processes the information through the same SoundPro SE DL circuits and displays the measurement results in the same screens The differences lie in the parameters used by each m
80. e the parameters Please review Table 6 1 Reverb time set up options for an explanation of parameters 1 2 3 4 From the start screen select Setup by using A Arrows amp press ED Select Options menu by using W Arrows and press fi Select Reverb Time by using Aw Arrows and press In the Reverb Time screen to change the settings follow below e Tochange the Method field press a to switch between Interrupted or Impulse when Method is selected e Tochange the Averaging field press a to switch between Measurement or Ensemble when Averaging is selected e o change the Threshold press a Press a to toggle between Auto or a dB level value To change the dB level press Aw Arrows to a specific decibel level is selected e 80 dB when Threshold is selected e Tochange the Measure field press to toggle between Auto or an RT value is selected when Measure is selected To change press AMY Arrows to a specific decibel level is selected i e 80 dB when Threshold is selected e To change the Filters field press Oo switch between 1 1 or 1 3 when Filters is selected setup REVERB TIME Reverb Time options METHOD Interrupted a Method field AVERAGING Measurement b Averaging field THRESHOLD 80 dB c Threshold field MEASURE T20 d Measure field FILTERS 1 1 e Filters field Figure 6 3 Reverb Time Setup screen SoundPre Models SE and DL
81. e the time log screen and return another time to edit the back erase segment provided that you have not started another study SoundPre Models SE and DL 15 Back erasing Stopping a session Stopping a session You can stop the session manually or with a trigger command but only when the instrument is in the Pause state When the session is stopped the Stop icon W appears in the Status Area and the RunTime clock is zeroed For information about using triggers see Digital Outputs Triggers on page 50 Stopping a session is sometimes referred to as closing the session Conversely a session is often described as open when the instrument is either in a run or pause state Stopping and pausing A manual session stop is a little different from a study pause To pause a study I you simply press the Run Pause key and the command is immediately executed To stop a session however you need to press and hold the Stop key lf you don t press and hold the stop key for the 3 second countdown period the stop command is ignored and the session remains open If you hold throughout the countdown the following events occur in proper sequence Stop icon t a ae CHI rz Tat ZS METER 1 Stop key Run Pause key Figure 5 15 Stopping and pausing e Stopped The session is stopped e Transferred The session data in memory is transferred to the memory card e Cleared The instrument s memory is
82. eeeeseeeseeeseeesseeeseeeseeeseeeseess 23 Table 3 2 Measures screen evplamed 29 Table 4 1 Level triggered auto on settings exvplamed ccc cceccc cece eeeceeeceeeeeeeeseeeseeeeseeeseeeseeeeaeeeseeees 45 Table 5 1 Measurement notations cccccccscccsecccececeeeceeeecceceeeceueecaeecseecaueesueeseecsueseaeeseeessenseaeeseeess 57 Table 5 2 Sessions and studies explained cc cecccceccccesceceececeeeeseeeeceeeeceacesseeeeseueeseueesseessaeeesaeeeseas 59 Table 5 3 Measurement screens evplamned 65 Table 5 4 Measurement icons and screen descriptors evplaned 67 Table 6 1 Reverb time Set Up options aa 80 Table 6 2 Tabular RT6O0 field explanation eege ere een ge ee eege 86 Table 6 3 Measures setup screen parameters explained coocccoccconcccncocnconcconconnnonnnonnonncononononnnnonos 101 Table OTs OUD EH 123 SoundPre Models SE and DL xii Table of Contents This page left blank intentionally SoundPre Models SE and DL CHAPTER 1 Models and options 4 Octave bands Introduction The SoundPro SE and DL series of sound level meters SLM from 3M are advanced instruments with highly adaptable characteristics This manual explains the features and functions of all models in the series and points out distinctions between the models Models and options There are twelve models in the SoundPro SE and DL series The differences between models are accounted for by three primary characteristics accuracy of measurement
83. effect Dosimetry Available for both meters all viewing areas and all instrument screen types Available only for Meter 1 and all instrument types but not for studies This screen will not appear when viewing the current study Community screen Time Log Available for both meters but only for broadband studies screen Table 5 3 Measurement screens explained NOTE If you re not running a study when you enter a viewing area only the SPL measurement is being measured and is available for viewing The values for any other measurement in the Selection Panel discussed under Changing displayed measurement are replaced by dashed lines Using softkeys in measurement screens The softkeys function in relation to the contents of the Softkey Region of the display To use the E OO SoundPre Models SE and DL 66 Measurement navigation Using softkeys in measurement screens softkeys the menus are visible in Softkey Region i e Cal for Calibration menu If necessary press the Alternate Functions key to toggle the contents of the Softkey Region Changing displayed measurement You can change the displayed measurement in any viewing area at any time There are five measurement options available SPL L_ average SPL L_av or L_eq depending upon the exchange rate setting for the selected meter peak SPL L_Pk maximum SPL L_Mx and minimum SPL L_Mn The labels comply with IEC ISO notation IEC ISO
84. er removable Microphone Accepts 13 2 mm 0 52 microphone directly Other sizes require an adapter Input impedance Greater than 1 GQ less than 2 pF Signal limit 11 VAC maximum Cable attachment Capable of driving up to a 15M cable with negligible signal loss Meters Dual meters Contains two separate meter circuits each of which can be individually configured with variable parameters Input impedance 20 kQ in series with 11 uF capacitance with 100 pF capacitance to ground Bandwidth The following bandwidth is typical for the instrument and preamp when set to the 40 140 dB range and F weighting Electrical signals are input to the sys tem with the 059 703 input adapter installed on the preamp e 0 1 dB down 20 Hz to 14 kHz e 1 0 dB down 5 Hz to 25 2 kHz e 3 0 dB down 3 Hz to 25 8 kHz SoundPre Models SE and DL 128 Appendix A Octave filters optional Number of bands Eleven bands with center frequencies f ranging from 16 Hz to 16 kHz The octave filters are flat within lt 0 3 dB in each passband The half power points are at 0 707 f and 1 414 f Octave skirts With respect to f e f 2 frequencies Approximately 20 dB down e 2f frequencies Approximately 30 dB down e f 10 frequencies Approximately 70 dB down e 10f frequencies Approximately 95 dB down Third octave filters optional Number of bands Thirty three bands with center frequencies from 12 5 Hz to 20 kHz
85. er di i e The Language screen appears An asterisk precedes the name of the currently selected language 5 Press Up Down W to select a language an asterisk will appear if selected and then press Enter 6 Press On Off ESC amp twice to return to the start screen The new language will be displayed setup display LANGUAGE ENGLISH ITALIANO FRANGAIS DEUTSCH ESPANOL PORTUGUESE Figure 3 10 Language screen SoundPre Models SE and DL 35 Setting up display options Backlight Backlight 0 00 00 START 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 backlight Backlight The backlight feature has an optional timed setting for various second intervals ranging from 1 second to 60 seconds Once a timed setting is activated and you press the backlight button the backlight will illuminate for the selected interval i e 10 seconds and then turn off NOTE Backlighting consumes energy at an increased rate Leaving it on while operating with batteries will decrease battery life by up to 10 gt Setting or viewing Backlight options 1 From the start screen press Up Down Aw to highlight Setup and press Enter 2 Inthe Setup screen press Up Down Aw to highlight Display and press Enter 3 Inthe Display screen press Up Down AN to highlight Backlight
86. ers explained gt Setting up STI PA speech intelligibility 1 Turn the meter On 2 From the Start screen select the Measurement type as STI PA e Press the first softkey repeatedly until STI PA appears mm 00 0000 START VIEW PAST STUDIES VIEW CURRENT STUDY Selecting measurement type VIEW SESSION Figure 6 18 Measurement type selection STIPA 3 Using Up Down arrows highlight Setup menu and press Enter a 4 Using Up Down arrows highlight Options and press Enter 8 5 Press Up Down arrows to select Speech Intelligibility amp press Enter SoundPre Models SE and DL 102 Speech Intelligibility STI PA setup 6 To change the Scale field press Up Down arrows until Scale is highlighted and press Enter 4D to change to either STI or CIS it BR setup SPEECH INTEL Speech Intelligibility screen METHOD STI PA SCALE STI e Setup screen GENDER FEMALE captured Curve selection e lf you captured background POST PROC OFF noise and want to apply it RANGE 110 60d8 select Cap1 Cap2 Cap3 or Cap4 to apply during STI PA test Figure 6 19 STI PA setup screen 7 To change the Gender field press Up Down arrows until Gender is highlighted and repeatedly press Enter a to select Male or Female 8 To change the Post Processing field press up down arrows to select the field and repeatedly press Enter to select a Captured Curve or Off 9 To change the Range press Down arrow and then
87. ess Right to delete or change a character Save Press on off esc to move to this field TXORDINANCE Name Rename file SAVE Press a softkey to quickly select a character set Then press up down arrows Figure 7 10 Saving Creating setup file config file SoundPre Models SE and DL 119 Configuration directory Viewing loading deleting setup files config 4 To change the file name follow below e Press W to change the selected character denoted by the underline e Optional Shortcut press a softkey has a character range and then press Ay to quickly move to the appropriate value e Press Left arrow to delete a character or move backwards e Press Right arrow to add a character e Repeat as necessary 5 To save your setup press the On Off Esc and the Save option will be highlighted Press Enter key to save or press On Off Esc key to cancel Viewing loading deleting setup files config gt Viewing loading deleting setup files 1 Open the Configuration Directory screen follow steps 1 2 above Saving setup file 2 The Setup File screen will appear Depending on what setups you saved these will appear in this screen 3 To Load or Delete a file configuration do the following e Selecta file you wish to load delete by pressing up down arrow until selected e Once selected press either the Load softkey to load and apply the saved setup or press Delete to delete a setup e Press On Off
88. eter to process the signals You can get different measurement results by setting the parameters for each meter differently Meter 1 Meter 2 explained Meter 1 and Meter 2 enables you to setup and monitor two instruments in one also referred to as a virtual instrument Meter 1 is the primary meter Meter 2 is the secondary meter If a filter option is installed in the instrument the filtered measurements are associated with Meter 1 only Setting Meter 1 Meter 2 Parameters are explained in Chapter 3 See Figure 3 4 for a screen example Measurement notation IEC ISO Many of the instruments measurements are labeled in accordance with nota tion standardized jointly by the International Electrotechnical Commission IEC and the International Standards Organization ISO This notation iden tifies the measurement and the meter s frequency and time response settings when the measurement was obtained Table 5 1 provides a couple measurement examples For additional information about measurements and measurement parameters see Appendix B Glossary Explanations LCS SPL measured with C weighting and slow response LAPk Peak SPL with A weighting Lu Maximum SPL with C weighting and slow response Lu Minimum SPL with C weighting and slow response Table 5 1 Measurement notations SoundPre Models SE and DL 58 Overview of running a session study Meter 1 Meter 2 explained Overview of running a sessi
89. f the displayed measurement is shown both graphically by the length of the bar and numerically below the bar The bar appears and usually fluctuates if the measured value is above the minimum value for the selected measurement range For the filtered bar chart screen the dominant characteristic of this screen is the multi element bar chart The chart shows measurements in each filter band and broadband values for both meters That means that for octave analysis the screen contains 13 bars 11 for filters and 2 for broadband and for third octave analysis the screen contains 35 bars 33 for filters and 2 for broadband A bars appears and usually fluctuate if the measured value for the bar is above the minimum value for the selected measurement range mp R 00 10 30 10 90 Shows SPL average value of Meter 1 e Will display only if SLM is selected as 5 5 the measurement mode a dB CSeq Kisel F S A C Z F METER 1 Softkeys menus options Amplitude in the band Broadband Bar Chart view Shows SPL average amplitude or value of Meter 1 e Will display only if octave band is enabled Selected band Broadband amplitude Figure 5 9 Bar Chart screen and Filtered Bar Chart screen SoundPre Models SE and DL 69 Measurement screens Community Noise screen gt Making changes to the Bar Chart or Filtered Bar Chart screen 1 The Range The scale shown above the chart is fixed and cannot be changed in the run
90. file is automatically created when you begin the first study in that session It contains the following types of information as applicable Measurements Measurements for each study in the session and overall measurements for the session Run times Run time for each study in the session and overall for the session If back erasing was used for a study Back erasing the run time for that study will be reduced by the duration of the back erased segment Analysis type The analysis type selection if available in your instrument that applied when the measurements were made Calibrations If performed Pre Calibration results for the session and Post Calibration results for studies in the session Logged data Stored with the session if the instrument contains the logging option and logging was enabled for at least one measurement Parameters All user adjustable settings in setup screens that are involved in the data processing that leads to the measurements Instrument settings All user adjustable settings in setup screens that affect the operation of the instrument but not including those in the Time Date Sig Input and Battery Check screens File directories Files on the memory card are stored in directories Session files are SoundPre Models SE and DL 112 File directories File directory screen explained automatically stored in the Session Directory and Configuration Files are automatically stored in th
91. for details 5 To view your results repeatedly press Enter See section Running a curve study and viewing results page 96 Criterion curve families Criterion curves is another option to display and record a selection of spectral curves for use in room and building acoustic measurements and noise control engineering The objective of a criterion curve is to specify the ambient noise in a room or environment with a single number or statement rather than individually specifying multiple octave or third octave band limits as you do with captured curves Types of Criterion Curves The SoundPro Models SE DL support a family of criterion curve families which are explained below For more information please see glossary e Noise Criterion Curves NC uses a tangency method and is typically used for HVAC room or building acoustic comparisons SoundPre Models SE and DL 92 Criterion curve families Setting up criterion curves e Preferred Noise Criterion Curves PNC uses a tangency method but accounts for lower frequencies compared with the NC method e Room Criterion Curves RC calculates a numerical rating based on speech interference and indicates any interference such as hissing rumbling or vibration This method was introduced to determine noise in offices room acoustics e Balanced Noise Criterion Curves NCB are one of the newer methods that indicate interference from rumble rattle and
92. for either run stop or run pause modes gt Viewing or changing level triggered mode 1 From the start screen press Up Down Aiyy to highlight Setup and press Enter 2 Select Auto Run by using Up Down AN to highlight and press Enter amp to select 3 In the Auto Run screen repeatedly press Enter until Level Triggered appears 4 Press the Down arrow to select View Set Parameters and press Enter a The Level Triggered Auto Run screen will appear e See Table 4 1 below for explanation of settings Mode to enable a HU WR filter mode select Level On Off or setup LVL TRG RUN Windowed Action Run Pause or Run Stop TRIGGER Source Level C SOURCE METER1 METER 24 Select one of the 5 D LEVEL 90 0 OFF features and then set an appropriate Level Figure 4 7 Level Triggered screen Level Explanation of Settings Triggered A Mode The mode or Filtered Mode can be set to Level On Off and Windowed settings e In Level On Off mode the unit starts a run when the source level exceeds the specified criteria and stops pauses when level falls below the off criteria The on criteria is met and either pause or stop a run when the off criteria is met In Windowed mode the unit starts a run when the selected criteria falls outside the defined window This is intended primarily for curves but can also be used with broadband or individual filter measurements SoundPre Models SE and DL Level triggered auto on sett
93. ge SPL n RE 140 Back erasing ei Ela EE 12 EE een 73 BaAGKIGI EE 19 SEMN EE 35 Backlight setting coooccooonocconononos 35 Balanced noise criterion curves EES Eege 142 Batteries Checking or changing e ssesenneeeneenen 15 MACION arias 20 MSAN EE 14 Power exvplamed 15 C A Demed eisiaa 137 C A measurement 30 Calibrate POU ysis tetas EE 61 History Cal screen 64 POS EE 61 E citer te od 61 DIGS eee EN 62 ANNI le e E 61 63 INDEX Captured curves RUANDA WEE 90 Captured curves Applications ocococccocncoocconcncccnconnnnnos 87 Runing and viewing results 96 SENMO UP rta as 88 Center frequency DOPING iganna a 137 CNEL BEE 137 Communications View measurements remotley log to port 53 Contacting 3M ooooocccccnoccnccnnconcnnacononononnos 149 Criterion curves RUNDI A renee 96 SD OHINGHUD DE 92 A O 91 Criterion Level Do PA 137 CT Den lts atada 138 dB DEM aia 138 DC output EXDIAINCG eege er 123 Biel 19 DMS Retrieve data 121 Retrieving your data diagram 122 DMS Back erased data 73 DMS Downloaded oca 122 EXDIGING tai coc coins 9 Retrieving data 121 Dose DE Md os 138 Dynamic range Demetrio 138 LOD Seatac mon A aoe bana eaeseeries 19 Exceedance Level Ln RE 139 Exchange Rate ER Deed eane a 139 SoundPre Models SE and DL 152 Index ExpHrs DAM de ea 139 ExpSec DOME isaac 139
94. ge decibel level cccccccceccecseeeeseeeeeeeeeseesesaeeeseeeesees 103 Figure 6 21 STI PA measurement ecaleresultslscreen 104 Figure 6 23 STI PA Modulation envelope screen 106 Figure 6 26 Captured curves background noise 108 Figure 6 27 Post CAP 1 applied during STI PA test 108 Figure 7 1 A A ee ee ee ee 112 Figure 7 2 SLANE MENU SCHOO EE 113 Figure 7 3 File Menu SCR OCI aiii RA ii dali 113 Figure 7 4 Data al WEE 114 Figure 7 5 Selecting past study data review model 114 Figure 7 6 Viewing past data example oooocccoccccocccccnccccnccncnncnconcnnnnnnnnnncnnonnncnnnnnonarononcnnnns 115 Figure 7 7 Loading and deleting files ooocooccccccocnnnonocnnncnnnnnnnononnnnanoncnnacononononnnnos 116 Figure 7 8 Examples of directory screens 116 Figure 7 9 Naming a file in the Data File screen 117 Figure 7 10 Saving Creating setup file config fiel 118 Figure 7 11 Viewing loading deleting Setup files ccc ccecceeceeeeeeeeeeeesaeeeeesaeeeeeseeeeeeas 119 Figure A 1 Pinout for the AC DC output jack occcoooccccocooccncconccncnnononononononnnnnnnnnaronononnnoss 135 Figure A 2L Auxiliary connector circa A deena ried a aaa At Erenn 135 TABLES Table EK ee Ee Ri Te ln e 4 Fable a Keypad explained 22 id O es 19 T ble 2 2 Screen Indicators ci e ei 20 Table 3 1 Required microphone settings ccccccceccceeeeeeeeeeeeseeeeeeeeeeeeseees
95. he digital input on the curve indicator To select external trigger select EXT as the source field and select LO for the level field TIMED When selected as the RUN trigger it will cause a delay of specified direction between the timed RUN button is pressed and the time the RUN actually starts When selected as the PAUSE STOP trigger it sets arun length To select under the Source and Pause fields chose Timed Next select a timed value or duration in the Level field This is formatted as hours minutes seconds D Level The level field corresponds with your selection from the Source field and is explained under C Source Table 4 1 Level Triggered Auto On settings explained 5 Toselect the Mode press Enter a repeatedly until you are viewing either Level On Off or Windowed 6 To move to the next field press the Down arrow 7 Tosetthe Action press Enter repeatedly until you are viewing either Run Pause or Run Stop 8 To move to the next field press the Down arrow 9 To change the Source press the right arrow To select one of the five Sources as explained above in Table 4 1 press Enter a repeatedly until you are viewing the appropriate feature SoundPre Models SE and DL Locking setup or run mode Setting secure run or secure setup locking 10 To activate Triggered Run on the Meter 2 press the right arrow and select one of the five sources by pressing Enter a repeatedly until you are v
96. hes instead of a value RT60 bar chart 00 01 23 Dit AE Overall RT60 value of selected band Selected band T60 20 Filter band results Displays the RT60 filter band frequency values States that T60 measurement was extrapolated from a Too measure Decay To view decay results press softkey Figure 6 5 RT60 bar chart screen Deleting RT60 value in a filtered band This optional feature allows you to delete a selected filtered band from the session average and is available when in review mode of view current study screens This may be used if for example you had someone accidentally walk in during your test and begin speaking You could delete the bands which interfered with your test from the RT60 average results 1 To delete a filtered band select either the RT60 Summary screen or the Decay curve screen SoundPre Models SE and DL 85 Additional options Reverberation results 2 Select the band to be deleted by pressing left or right arrows 3 Press the Delete softkey Repeat steps if you wish to delete more bands Decay curve screen This chart displays the average or ensemble results of a single Reverb Decay curve from the study e one filter band or the average of all studies within that session For more information refer to Sessions and Studies in Chapter 5 Viewing decay value of each band 1 The decay value for each specific band is viewable by p
97. hiss e Noise Rating Curves NR used primarily in Europe Australia and other country s room and building acoustic measurements HVAC studies machine noise evaluations and for some community noise enforcement applications Setting up criterion curves Setting up criterion curves is similar to setting up captured curve parameters However with criterion curves you select a specific curve type and then it is applied during your study or test gt Setting up criterion curves and appropriate measurement type 1 From the start screen select either 1 1 octave or 1 3 octave for the measurement type Repeatedly press first softkey Eh a e Selecting Measurement type 00 00 00 Lut Press first softkey until 1 1 or START ll 1 3 is selected VIEW PAST STUDIES e Figure 6 12 Selecting measurement type for curves 2 Next select the measurement type by selecting View Session use Up Down Arrow to select and press Enter a Select the appropriate meter 1 settings using the softkeys and set the response time weighting and measurement type See Figure 3 4 page 27for an example SoundPre Models SE and DL 93 Criterion curve families Setting up criterion curves Press On Off Esc Ga to return to the start screen Select Setup use up down arrows to highlight and press Enter a Select Options menu use up down arrows to highlight and press Enter Select Curves me
98. hlight either AVG PEAK MAX MIN b Once the measurement is selected press Enter button to toggle between On or Off to logging field M NOTE Ifyou are setting Meter 2 options ensure you are on Meter 2 by pressing the Meter 1 Meter 2 softkey and then repeat step 4a b Logging options On Off setting AVG average Peak MAX maximum MIN minimum setup METER 1 LOGGING INICIO a L1 LO5 PEAK ON L2 L95 MAX ON FILTERS OFF MIN ON INTERVAL 1 Min METER 1 9000 Press right left arrow to move back Exceedance options Set by using the up down arrows e L1 e L5 Filters e On Off setting Logging Interval Logging rate which can be set at various minutes and second values Softkey Meter 1 Meter 2 Figure 3 8 Logging screen explained 5 Tochange the Exceedance Levels on Meter 1 press Up Down AA to select either L1 or L2 SoundPre Models SE and DL 33 Setting up display options Setting logging options 6 Press Enter a to move to the data field If it is Off and you want to set a percentage press Enter O repeatedly until a percentage appears To disable repeatedly press Enter a until Off appears a To change the percentage repeatedly press Up Down Aw to select a specific percentage b Press right left arrow to move back to Exceedance level field 7 To change the Filters option press Up Down Aw to highlight Filters and then press Enter a to
99. hreshold is set to 80 dB and the Exchange Rate is 5 dB the settings of OSHA s Hearing Conservation Amendment Consider taking a one hour noise measurement in an office where the A weighted sound level was typically between 50 dB and 70 dB If the sound level never exceeded the 80 dB threshold during the one hour period then the Layg would not indicate a reading of zero If 80 dB was exceeded for only a few seconds due to a telephone ringing near the instrument then only those seconds will contribute to the Lave resulting in a level perhaps around 40 dB notably lower than the actual levels in the environment RTIME Lag ER oe Ee RTIME dB L eo The true equivalent sound level measured over the run time The term L__q Is functionally the same as L_ay except that it is only used when the Exchange Rate is set to 3 dB and the threshold is set to none SoundPre Models SE and DL 141 Appendix B LDN Representing the Day Night sound level this measurement is a 24 hour average sound level where 10 dB is added to all of the readings that occur between 10pm and 7am This is primarily used in community noise regulations where there is a 10 dB penalty for night time noise Typically LDN s are measured using A weighting a 3 dB Exchange Rate and no Threshold L we Minimum SPL Lowest SPL measured over a time interval L vw Maximum SPL Highest SPL measured over a time interval Logging In sound studies the saving of measureme
100. iewing the appropriate feature If you are only setting Meter 1 please skip this step 11 To move to the next field press the Down arrow 12 To select a Level press the Right arrow Press Enter O repeatedly until you are viewing the appropriate setting 13 Press On Off Esc repeatedly to return to the start screen When you are ready to run your study press Run Pause O Locking setup or run mode The locking or security feature is designed to lock the SoundPro during a run to ensure the study will not be stopped unless the lock feature is disabled Likewise this feature includes a locked or secure setup mode which will stop a user from editing a programmed setup Once setup and enabled the secure run or secure setup are unlocked by pressing the Lock softkey and entering in the code NOTE Security settings survive a shutdown Setting secure run or secure setup locking Run Security and Setup Security are both enabled and disabled in the Lock screen For Secure Run you can be in pause or stop mode when locking For Secure Setup you must be in stop mode to set and enable this feature About Secure Run When you enable Run Mode Security and start a run the Secure Run Mode screen appears Figure 4 10 This will prevent users from viewing the measurements changing parameters and or stopping the run To stop the secured run you will have to press the Lock softkey and enter in the code Then you would be able to st
101. ight Contrast and then press Enter a Repeatedly press the left or right arrow to decrease or increase the contrast NOTE The contrast will change as you change the contrast color with the left or right arrows To exit the display screen press the On Off Esc S twice to return to the Start screen setup DISPLAY LANGUAGE BACKLIGHT Contrast setting Press Left arrow or Right CONTRAST arrow repeatedly to decrease or increase the contrast Figure 3 12 Contrast setting SoundPre Models SE and DL 37 CHAPTER 4 Advanced setups This chapter covers the SoundPro models SE and DL features listed below all of which provide capabilities beyond the essential ones required for basic model setup and basic sound measurement For information about basic SoundPro models SE and DL features and setups see Chapter 3 Basic setups For information about the notation and navigation conventions that are used in these explanations see Chapter 1 Introduction Auto Run Similar to an Auto Start feature it will automatically start and stop sessions based on time date duration settings and level triggered run mode which is used to control runtimes of studies and sessions using internal and external signals Triggering Control the runtimes of studies and sessions using internal and external signals Security Prevent certain uses of the instrument by someone who doesn t know the security codes available for al
102. impulsive noise i e starter gun 5 Depending on your Setup options the Reverb Time will automatically trigger and record the results M NOTE You may want to repeat this process a few times to ensure the readings are accurate Once the RT60 Is captured a pause indicator will appear at the top of the screen To run another study press the run key again and follow step 4 Or if you do not want to combine all of the run pauses into a session press Stop and then Proceed with the Run key and follow step 4 Reverberation results There are three viewable screen reverberation results which include the RT60 Summary chart Decay Curve screen and the Tabular Summary screen When the SoundPro is in pause mode you can view the charts and graphs by toggling through the screens via the Enter key If you will be running multiple SoundPre Models SE and DL 84 Additional options Reverberation results studies you may want to review the data at the end of the session In this example you would access the File Session Data File screen and select a past study For more information see Viewing past sessions studies in Chapter 7 RT60 summary screen This is a vertical bar chart that will plot the T60 values taken from each octave band or 1 3 octave band Viewing RT60 values of each band 1 The decay value for each specific band is viewable by pressing the left right arrow keys M NOTE Bands with invalid T60 values will show das
103. ination of the modulation transfer function MTF which is the ratio of measured modulation to the overall signal strength at each modulation frequency gt Viewing STI PA results 1 Once in pause or review mode press a repeatedly to toggle through the STI PA results screen STI PA measurement and scale results screen In the STI PA measurement screen the MTF is combined according to IEC 60268 16 and presented on a scale between 0 to 1 representing the quality or intelligibility of the mass notification system anda AMAN gt 00 00 13 78 5 dB STI PA scale results ea Poor rar coop exar La STI PA results A O graphical view 0 0 0 3 0 45 0 6 0 7 1 0 Figure 6 21 STI PA measurement scale results screen SoundPre Models SE and DL 105 Speech Intelligibility STI PA results screens STI PA modulation 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 interfering background noise such as non linear distortions electronics reverberation HVAC systems in each attenuation band and indicates which values are intelligible unintelligible based on the CIS STI scale SI NOTE A high MTF value indicates that the listeners received the message without any distortions or interference gt W 00 00 15 LEQ MF1 MF2 A
104. information please see Changing displayed measurements d BRST gt AL A L_eq L_Pk L_Mx L Mn Selection Panel This appears when lookup softkey is e The diamond symbol u indicates which measurement is selected L_ denotes SPL Press Enter key to confirm new selection In the broadband RTA screen press Altf key This will expand the softkeys and Cap will appear When the level is stabilized press the Capture key See Figure 6 26 4 Optional To capture additional background levels change the ile softkey to either Cap 1 Cap 2 Cap 3 Cap 4 and then press the Capture 279 softkey Repeat this step as needed You can store and apply up to 4 background noise SPL levels SoundPre Models SE and DL 108 Speech Intelligibility STI PA results screens en 000030 ae wee 91 Sa As 97 0 Curve indicator softkey to assign ES a captured curve AA A ia ace P name e CAP PE AL TT DS AA Capilares 1 CAP 2 CAP y ey i 3 or CAP 4 DE TORRE foes 9 Ter o eer 1 A ress Capture Se I Ae softkey to save the background noise SPL Figure 6 26 Captured curves background noise 5 Once all background noise has been captured refer to Applying captured curves below Applying captured curves for STI PA testing To apply the curves during a STI PA measurement remember to complete one and two below before applying the curve gt Applying captured curves 1 Fro
105. ing Level Explanation of Settings Triggered B Action After selecting specific filter mode settings the instrument is set to trigger based on Run Pause mode or Run Stop mode C Source The source can be set to Meter 1 Meter 2 filters curve external trigger timed run trigger mode and a delay which are explained below 45 Setting up auto run e Broadband When selecting Meter 1 or Meter 2 for the triggering source you then specify a specific value in the level field such as 85dB Filters Octave band filters are selectable as a triggering source such as 12 5Hz 16Hz 20Hz through 20KHz Note this is only available if they have purchased the 1 1 or 1 3 features To select a filter select a an octave band value i e 10KHz in the source field Then select a Level value e 90dB Delay When selecting Delay with a specified time value it will trigger the auto run after the timed delay surpasses This is similar to setting a delay on a camera To select Delay select the Source as Delay and for Level select a specific time value the range is from 00 01 seconds to 59 00 minutes Curve If the curves feature has been purchased you have the option of selecting one of the 4 captured curves to trigger a run To select a captured curve set the Source as Curve and then change the Level field to one of the following CAP 1 CAP 2 CAP 3 or CAP 4 EXT External Trigger feature is triggered by t
106. ing a level setup for STI PA cos cdi 103 Running a speech intelligibility study oooccocncooncconccononononanonanonanonnnonaronaronaronaninnns 103 e TES US SCROCINS vices ate eke e 104 STI PA measurement and scale results screen 104 STFPRA Modulation SCFECNN EE 105 STI PA modulation envelope screen 106 Applying captured curves for STI PA testing occccccnccccncoccncconncncnonnnnconcncnnnnnnnnnonononanoos 108 Viewing Past Measurements ccecceeceeceeeeeeseesensenseneeesenseeeeeeseeseesensonsensoneees 111 el 111 File eege OS is 111 File directory screen explained ENEE 112 Viewing past sessions studies review model 112 L ading and deleting OT 115 SESSION o A o A 116 Navigating in a session config directory ooccccocnccoccncconnnonnnonononnnnconcnonnnonnnnnnnnnonncnnnnos 117 Naming and renaming Tee 117 Contigurati on directory a aeons ea cae aerated we eevee nae s 118 Saving amp naming setup file config Del 118 Viewing loading deleting setup files CONTID oocccocccoocnconcncocnccoonccnnnconcnnonnnonononanoss 119 Memo Calida AA A a ca 120 Fe ag 272 171 9 oa mene anne E eC tn OO ne nee 120 Formatting a card with the SOUNCPLO occoocncnccnccccccccnccncnconcncnnnnonnnnoncnconnnonnnnonanonnrnnnnnnnnanonos 120 Seu ue d e cos 121 Communicating with aPC esis cetacean ae Re ieee 121 Using Detection Management Software DM 121 Using an external card reader six tek
107. is a process of comparing your measurements to a fixed curve The correct curve number is the lowest curve that meets or exceeds the measured octave values Typically this is used in HVAC applications Noise Rating Curves NR This curve family is a tangency technique and is used primarily in Europe and Australia It is used not only for HVAC and machine noise applications but also in community noise enforcement Noise Floor The signal magnitude at the bottom of the instrument s linear range Input signals below the noise floor cannot be differentiated from the internal noise of the instrument Overload OL An overload will occur whenever the input signal exceeds the dynamic range of the instrument Pascal Pa Unit of pressure equal to 1 Newton per square meter SoundPre Models SE and DL 143 Appendix B PTWA This is a projected TWA determined for a projected time Prt in relation to the Criterion Time CT as follows WA Prt Peak C The following chart illustrates the range of Sound Level with C weighted Peak Peak C Level Range Level Range dB Peak C Level Range dB Level Range dB dB 20 to 70 42 2 to 73 20 to 110 42 7 to 113 10 to 80 42 6 to 83 30 to 120 46 7 to 123 O to 90 41 6 to 93 40 to 130 55 4 to 132 10 to 100 43 4 to 103 50 to 140 66 3 to 142 Preferred Noise Criterion PNC Curves The Preferred Noise Criterion Curves a type of tangency method was an update to Beranek s original NC
108. ise See Setting logging options on page 32 for details I gt MAX 89 9 dB AVG 85 5 dB TWA 95 0 dB OL 05 EXP 150 5 p2s UL 00 00 03 07 30 30 DOSE 90 2 PDSE 100 0 PTWA 101 5 de SEL 60 0 dB Tum F S A C Z F METER 1 Dosimetry View Shows accumulated personal exposure to noise e These measurements are affected by the settings in the Meter Set screen Figure 5 11 Dosimetry screen Dosimetry measurements Dosimetry measurements depend upon the run time the longer the run time the greater the accumulated dose Accordingly dose measurements will either remain the same or grow during a study or session They are determined from broadband data regardless of the selected analysis type SoundPre Models SE and DL 171 Measurement screens Tabulation screens Tabulation screens The Tabulation screen shows measurements for two broadband measurements and for all the bands for the selected analysis type For octave analysis all bands are visible in a single tabulation screen When viewing third octave analysis however it takes three screens to display the tabulated measurements for all bands Press to lt gt cycle through them dd 03 30 30 Tabulation view melcsMx 99 0 500Hz 95 1 Shows the average SPL on Meter 1 105 6 kHz 102 4 only 75 0 2kHz 90 1 796 4kHz 862 e Only available if a filter option and 82 3 8kHz 840 1 1 or 1 3 octave band is enabled 88 8 16kHz 71 2 on your meter
109. l instruments Logging Periodically save selected measurements at a preset interval during all studies of a session only for DL models GPS Obtain position and time information from the global positioning satellite system and store that information with each study that you perform only available if you have a compatible GPS receiver SoundPre Models SE and DL 38 Auto Run Date setting Auto Run SoundPro SE DL has four automatic run modes which include Date auto start with duration Day of the Week auto start with duration Timed Run duration only setting and Level Triggered Runs or Level auto start runs Setting up auto run All Auto Run setups begin in the Auto Run screen The Auto Run screen shows the current status of the Auto Run feature The following features are available Disabled Timed Run DOW day of week Date and Level Triggered settings Date setting A Date mode run wakes up the instrument from a powered down condition runs the study saves it then powers down again and is only executable once The parameters are selectable by specified dates and times with up to four programmable individual setups A plus sign preceding a number i e 1 indicates if one of the four settings is enabled or activated where as a negative sign i e 4 represents a disabled or deactivated setting gt Setting up or changing auto run with date parameter 1 From the start screen press Up Down Aw to high
110. layed back also called review mode in accordance with the analysis type that was selected when the measurements were stored 1 From the Start screen press the File softkey m 0 00 00 START VIEW PAST STUDIES VIEW CURRENT STUDY VIEW SESSION SETUP UNIT INFO Figure 7 2 Start menu screen START REVIEW VIEW SESSION SETUP UNIT INFO UD 00 00 00 RESET CAL FILE COMM 2 Session Directory will be highlighted press Enter a SESSION DIRECTORY PB Log ON OR RE NAME LAST SES FILE SAVE CONFIG FILE ITT Figure 7 3 File menu screen Session Directory Softkeys SoundPre Models SE and DL 114 File directories Viewing past sessions studies review mode 3 Inthe Data File screen press AN Arrows to select one of the saved sessions and press Enter a to load the file Lo DATA FILE DELETE Figure 7 4 Data File screen 4 It will state Loaded Press either Enter a or On Off Esc key 5 In the Start screen the review indicator appears Select either View Session or View Current Study by pressing Ae and a k Lo MM 00 05 45 STAR VIEW PAST STUDIES IEW CURRENT STUDY Review mode when both Pause and Stop indicators appear this signifies you VIEW SESSION can view your saved session or study SETUP UNIT INFO Run time View current study is selected Press enter to view data lt SLM gt CAL FILE LOCK Figure 7 5 Selec
111. light Setup and press Enter a 2 Select Auto Run by using Up Down AN to highlight and press Enter amp to select 3 In the Auto Run screen repeatedly press Enter until Date appears ME setup AUTO RUN AUTO RUN Date Date setting View Set Parameters when selected a new menu appears VIEW SET PARAMETERS 7 Figure 4 1 Auto Run with Date selected 4 To select View Set Parameters press the Down arrow to highlight and press Enter a SoundPre Models SE and DL 39 Setting up auto run Date setting 5 Press one of the four softkeys in the Auto Run Date screen to assign a numbered setting e Auto Run 1 NOTE if setting up for the first time the Date screen will appear as Auto Run Off To turn on Auto Run 1 2 3 or 4 select the appropriate softkey For example Figure 4 3 displays setting up softkey 1 parameters When activated a symbol appears 6 To set Date values press Enter to move to the first field To change the fields press repeatedly Up Down Ay To move between the day month and year fields press the right left arrows Auto Run 1 Indicates which 1 4 mm 8 ae or set Day Month Year tields isetup AUTO RUNIDATE AUTO RUN 1 Time settings Add Start time S 8 15 00am 19 MAY 2008 Add Duration D S 16 30 00 D 06 30 00 16 hr 30min O sec or 6 30 00pm Example Press first softkey to activate Auto run 1 settings Figure 4 2
112. ly below it There are eleven octave bands in the audio spectrum Figure 1 2 illustrates the relationship between the bandwidth of a typical sound measuring instrument and the octave bands that span the audio spec trum Note that the highest and lowest octaves at 16 Hz and 16 kHz lie entirely within the bandwidth of the instrument lt _ Instrument s Bandwidth ro 16 Hz octave m Level DI nae 16 Hz Frequency gt 16 kHz Figure 1 2 Octave bands SoundPre Models SE and DL 3 Level Frequency resolution Third octave bands Third octave bands Each octave band can be divided into three adjacent bands called third octave band Because of the logarithmic relationship between adjacent bands the center frequencies of third octave bands differ from each other by 26 For example the center frequency of the next third octave band above the 1000 Hz third octave band is at 1260 Hz Figure 1 3 is similar to Figure 1 2 but shows the thirty three third octave bands in relation to the instrument s bandwidth MES Instrument e Bandwidth A 12 5 Hz Frequency gt 20 kHz Figure 1 3 Third Octave bands Naming bands Bands are conventionally named for their center frequencies in accordance with acoustical industry standards Table 1 1 identifies the SoundPro SE or DL models that have octave and third octave bands option with their exact center frequencies and thei
113. m exceeds this size The tests are noted as pass fail 7 NOTE the past tests can be reviewed and loaded via the File System screen STI PA setup The following table explains all of the parameters found in the measures setup screen setup screen scale or CIS scale Gender field The voice can be set according to the test signal being use male or female voice NOTE the Verifier default setting is Male If using the test signal supplied by 3M this uses a male test signal so you will not have to change this field if you only use the male test tone signal SoundPre Models SE and DL 101 Speech Intelligibility STI PA setup Post Process An optional captured curve feature can be applied to your STI PA field testing Essentially you take a snap shot of the current sound level measurement and store it as your background noise Once the background noise data is gathered you can apply the captured noise during your STI PA measurement This may be used in a situation where you cannot play the test signal during normal working hours Please refer to Chapter 1 When to take STI PA measurements scenario 2 for more details Range field You can change the range when measuring The following ranges are selectable parameters 90 dB 140 dB 80 dB 130 dB 70 dB 120 dB 60 dB 110 dB 50 dB 100 dB 40 dB 90 dB 30 dB 80 dB and 20 dB 70 dB Table 6 3 Measures setup screen paramet
114. m the Start screen select View Session and press a Press Altf key 2 Select one of the captured curves by pressing the 1 softkey i e Cap 1 Press On Off Esc key 3 From the Start screen press the 1 softkey continuously until STI PA is selected Then select View Session and the STI PA screen will open wll 00 00 15 Win S 69 4 dB POST CAP 1 Aeq The selected Captured Curve STI PA 0 69rosr Le CAP 1 will appear on the Male GOOD CAP 1 STI PA screen To change the Cap x repeat steps 1 2 above eno Poon FAIR 6000 Tent k S e 0 0 0 3 0 45 06 0 7 1 0 Figure 6 27 Post CAP 1 applied during STI PA test SoundPre Models SE and DL 109 Speech Intelligibility STI PA results screens 4 Press the Run Stop key while playing the test signal in the appropriate location zone The captured curve will automatically calculate with the STI PA results M NOTE press the left right arrow to view the modulation screen and or the modulation envelope screen if desired STI PA test results screen SoundPre Models SE and DL 110 Speech Intelligibility STI PA results screens This page left blank intentionally SoundPre Models SE and DL 111 Files CHAPTER STI PA results screens d Viewing Past Measurements This chapter explains how to view your past sessions and studies It will also explain how to rename your sessions studies and how to clear reset the data on the memory card Files A session
115. n procedures that you can use to name and rename files including a lookup capability that allows you to determine if a filename is already In use You cannot rename a session file unless it is in the instrument s memory Accordingly you can rename the closed session currently residing in memory but you must first load a past session file before you can rename it NOTE For past sessions please follow these steps but first load the file gt Renaming the session in memory 1 Inthe Start screen press the File softkey The File screen appears 2 Press A to select Re name Last Session File then press a The session file renaming screen appears 3 In the File Name screen press a and the following changes will occur e The highlighted cursor moves to the field of one of the four softkeys depending upon the last character in the existing filename e The last character in the filename is underlined D RW DATA FILE e Press Enter to add another field e Softkeys may be used FILE NAME e Press Up Down arrows to quickly select a to change character letter number character e Or repeatedly press Up Down Arrows to select appropriate character Figure 7 9 Naming a file in the Data File screen 4 Take the following actions to change the underlined character e Press amp W to move sequentially until the appropriate character is selected The underlined character in the name changes as you press the keys e Optional Short
116. n results if a pre calibration was performed but not followed by a Post Calibration Performing a calibration Before beginning your calibration ensure the calibrator has sufficient battery power to perform the calibration Also you will want to insert the cal adapter into the mouth of the calibrator If the SoundPro has a windscreen please remove gt Calibrating 1 Ensure the SoundPro is turned On and is either stopped or paused 2 Attach the calibrator and cal adapter to the SoundPro Set the calibrator to 1 KHz and 114 dB if it is a selectable Microphone Place calibrator n over microphone Cal Adapter SC Insert into cavity of QC10 QC20 QC10 QC20 We Select 1kHz and 114 dB Figure 5 2 Attaching calibrator to SoundPro 3 From the Start screen press the Cal softkey and the Cal screen will open 4 Select Calibrate by pressing Any Arrows if not selected and press Enter E to open the Pre Cal screen 5 Switch On the Calibrator SoundPre Models SE and DL 63 Calibrate Performing a calibration Pre Cal Displays pre calibration information Measurement value displayed graphically Measurement value Press up down softkey to de increase decrease cal value Figure 5 3 Setting pre cal screen Allow the measurement to stabilize and then press AY Arrows to set 114 0 dB level Press Enter a to store the new calibration The Calibration History screen will appear with the new
117. ndPro SE DL instrument The card should always be in place when you are operating the instrument More information about operating with the memory card is given under Memory card on page 106 NOTE You must use a compatible SD card For information about replacing the SD card see Compatibility on page 117 USB port A USB cable is shipped with each SoundPro SE DL instrument One end fits the mini B port in the instrument The other end fits a standard USB connector on a personal computer A USB connection to a personal computer allows files to be transferred settings to be downloaded to the instrument and post session analysis to be performed in the computer using data files created in the instrument SoundPre Models SE and DL 7 Physical Characteristics Hardware interfaces AC DC port Connect a cable with a standard 3 5 mm stereo plug to this jack to obtain AC and DC output signals Users are responsible for providing their own cable Power jack DC power can be delivered to the instrument through the Power jack Power will be taken from the external source rather than the instrument s batteries when the external source provides 8 to 16 volts DC 300ma minimum Two optional sources for this power are available a switching power supply connected to an AC source and DC power provided through the accessory jack of most automobiles For the technical specifications see Power sources in Appendix A Part numbers are
118. ng enabled you can save selected measurements at fixed intervals during a session You can set logging to occur as often as once per second or as seldom as once per hour Once the logging characteristics are determined the setup remains the same for the duration of the session Logged data is automatically saved to the instrument s memory card and can be viewed in QSP II Information screen on page 8 M7 NOTE You must use a compatible SD card For information about replacing the SD card see Compatibility on page 117 Physical Characteristics The Display The transflective LCD display contains an area on the top of the screen for indicators including run pause stop icons and a run time clock The middle of the screen contains a fine resolution of pixels in which data is displayed SoundPre Models SE and DL 6 Physical Characteristics Hardware interfaces both numerically and graphically This is explained in further detail in Chapter 2 The Display and keypad Hardware interfaces The Hardware Interface Panel shown in Figure 1 4 is located under a hinged cover in the base of the instrument The cover can be lifted by a tab at one side and snapped shut again by closing and pressing firmly at the center Memory card slot USB port Auxiliary port AC DC jack Power jack Figure 1 4 Hardware Interface Panel Memory card slot Ai A Secure Digital SD removable memory card is shipped with each Sou
119. ng two types of audiometric test room sound level curves e Audiometric Test Room Background Sound Level Curves OSHA which compares the ambient noise readings to the maximum permissible ambient noise levels MPANLs at 500 Hz 1K 4K 8K as specified by the OSHA Hearing Conservation Amendment 1983 e Audiometric Test Room Background Sound Level Curves ANSI which compares the ambient noise to selectable criterions specified in ANSI S3 1 1999 and allows for a variety of audiometric earphones using 1 1 and 1 3 octave band analysis Setting up audiometric background curves For set up parameters it is recommended to set Meter 1 to Slow Response Z Weighting and measurement to Leq before you run your study Additionally the measurement type should be set to 1 1 octave for OSHA audiometric testing and should be set to 1 1 or 1 3 octave for ANSI audiometric testing The steps below detail the procedures gt Setting up audiometric background curves and measurement parameters 1 From the start screen select either 1 1 octave or 1 3 octave for the measurement type Repeatedly press first softkey 0 00 00 START electing measurement type Press first softkey until 1 1 or VIEW PAST STUDIES l 4 3 is selected VIEW CURRENT STUDY VIEW SESSION e SETUP eet UNIT INFO e 1 Lk FLE COMM Figure 6 14 1 1 or 1 3 octave measurement type for audiometric testing SoundPre Models SE and
120. nge or set the measurement type ensure the SoundPro is stopped as indicated by the stop Mi icon Depending on the options you ordered with your SoundPro it may or may not have all the measurement types indicated above NOTE For STI PA and RT60 please see Chapter 6 Additional Options gt 1 Setting Measurement type Turn on the SoundPro SE DL by pressing On Off Esc Q e If turned on and you are not at the start screen press On Off Esc amp repeatedly until the start screen appears see Figure 3 3 At the start screen select the first softkey button repeatedly until the appropriate measurement type is selected e You may have the following selectable options Sound level meter SLM 1 1 octave 1 3 octave and or STI PA Speech Transmission Index 0 00 00 START VIEW PAST STUDIES VIEW CURRENT STUDY VIEW SESSION SETUP UNIT INF Softkey menu Measurement type Sound Level Meter 1 softkey Repeatedly press to move toggle through measurement types Figure 3 3 Measurement type and start screen SoundPre Models SE and DL 2 Basic setups Meter 1 Meter 2 Parameters i e response time weighting Meter 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 gt Setting up Meter 1 and or Meter 2 parameters 1 Ensure you are at the start screen e If tu
121. nsidered the average threshold of hearing A whisper is about 20 dB A normal conversation is typically from 60 to 70 dB and a noisy factory from 90 to 100 dB Loud thunder is approximately 110 dB and 120 dB borders on the threshold of pain Dose Related to the Criterion Level a dose reading of 100 is the maximum allowable exposure to accumulated noise For OSHA 100 dose occurs for an average sound level of 90 dB over an 8 hour period or any equivalent exposure By using a TWA reading rather than the average sound level the time period is no longer explicitly needed A TWA of 90 dB is the equivalent of 100 dose The dose will double halve every time the TWA increases decreases by the Exchange Rate M Example OSHA uses an Exchange Rate of 5 dB Suppose the TWA is 100 dB The dose would double for each 5 dB increase over the Criterion Level of 90 dB The resulting dose is therefore 400 If the TWA was instead equal to 80 dB then the dose would halve for each 5 dB below the Criterion Level The resulting dose would be 25 When taking noise samples less that the full workday dose is an easy number to work with because it is linear with respect to time Example If a 0 5 hour sample results in 9 dose and the workday is 7 5 hours long then the dose for the full workday would be a 135 dose 7 5 0 5 x 9 This is computed making the assumption that the sampled noise will continue at the same levels for the full 7 5 hour workday
122. nt investigation e The operator captures the original noise and then makes various changes to the machine and or enclosure and looks to see how much of a difference the change made Application 2 Quality Control Using a captured curve as a Quality Control QC evaluation The instrument has been pre loaded with a sound curve that represents the allowable levels for some product e Once the product comes off the assembly line it runs and the measurements are compared to the allowable levels If levels exceed the curve it is sent back for rework Application 3 Process monitoring A set of machinery is monitored to watch for changes in the operating sound e lf the measured sound exceeds the sound curve it is an indication to the operator that something bad is happening i e over exposure and he needs to shut things down and call maintenance before more damage occurs SoundPre Models SE and DL 88 Captured curves Setting up captured curves Setting up captured curves gt Setting up Captured Curves Settings and measurement settings 1 From the start screen select either 1 1 octave or 1 3 octave for the measurement type Repeatedly press first softkey a 00 00 00 Selecting Measurement type UE e A Be Press first softkey until 1 1 or 1 3 VIEW PAST STUDIES 9 selected VIEW CURRENT STUDY VIEW SESSION SETUP UNIT INFO pe Figure 6 8 Selecting measurement type for curves Next select
123. nt need to be returned for repair or for recalibration please contact the service department at the following number or access the online form via the website For technical issues please contact Technical Support Service Department and Technical Support 1 800 245 0779 Fax 1 262 567 4047 Office hours are 8 00 a m to 5 00 p m United States Central e E mail 3Mdetectionmail mmm com e Internet www 3M com detection International customers Contact your local factory authorized distributor from whom the product was purchased You can obtain the name and contact information of your local factory authorized distributor from 3M by using the e mail telephone or fax information given under Contacting 3M above Calibration The SoundPro and 3M field calibrator devices should be examined regularly by the factory An annual calibration is recommended Please see Service Department above SoundPre Models SE and DL 150 Appendix C Warranty 3M SoundPro Sound Level Meter LIMITED WARRANTY 3M warrants SoundPro Sound Level Meter will be from free defective materials and workmanship for one year from date of purchase indicated on the sales receipt provided it is maintained and used in accordance with 3M instructions and or recommendations If any component becomes defective during the warranty period it will be replaced or repaired free of charge This warranty does not apply to units that have been altered or had repair a
124. ntegrated reading Lave Dose and TWA but does not affect the instantaneous sound level ExpHrs Hours of sound exposure Accumulated exposure to sound measured in hours using an Exchange Rate of 3 dB The display will switch to ExpSec if RTIME is less than one hour La 94 3 01 RTIME 2 OR EX Pre PEDO eq Pa 3600 where P 20 UPa ExpSec Seconds of sound exposure Accumulated exposure to sound measured in seconds using an SoundPre Models SE and DL 140 Appendix B Exchange Rate of 3 dB The display will switch to ExpHrs if RTIME is greater than 3600 seconds Leg 94 3 01 EXP 2 RTIME bas Sec OR E Ps 1 10 va a where P 20 Pa Level Ler Notation used to represent sound pressure level measurements in IEC ISO notation where the measurements are made with particular frequency F and time T response parameters For an actual measurement the F and T parameters are replaced by standardized notation for those parameters L av Average sound level measured over the run time This becomes a bit confusing when thresholds are used Any sound below the threshold is not included in this average Remember that sound is measured in the logarithmic scale of decibels therefore the average can not be computed by simply adding the levels and dividing by the number of samples When averaging decibels short durations of high levels can significantly contribute to the average level Example Assume the t
125. ntifies the card s format oS Oy Formatting a card with the SoundPro The SoundPro has the capability of doing a Quick Format or Full Format A Quick Format is all that is required in most cases to format a card in FAT 16 or FAT 32 A Full Format will verify each sector of the card as it formats with the penalty of taking much longer Y CAUTION A Quick Format may be used to delete all files from the card SoundPre Models SE and DL CHAPTER 8 121 Communicating with a PC Using Detection Management Software DMS Communicating This chapter covers issues related to the memory card the USB port and the AC DC outputs Communicating with a PC Using Detection Management Software DMS When you download the data via the the download feature the data is stored and viewable via the data finder page with advanced charting tables and reporting capability The information is viewed in customizable graphs and or charts in the panel layout page Using an external card reader DMS can import data configurations with an external SD card reader You should never remove a card from a reader without first ejecting it from the drive Eject using the following Windows procedure gt Eject procedure 1 In the computer right click the Removable Disk entry under My Computer A menu appears 2 Click Eject in the right click menu Working with measurement data in DMS The downloading of data enables you to analyze your data in cust
126. nts at fixed intervals during a study where each measurement is determined from data processed in the previous logging interval L Pk Peak SPL This is the highest SPL value obtained during a study or a session A peak SPL measurement is affected by the frequency response setting but not by the time response setting of the meter Octave band An Octave band is defined as a frequency band whose upper band edge frequency is twice the lower band frequency Noise Unwanted sound SoundPre Models SE and DL 142 Appendix B NCB Balanced Noise Criterion Curves This is the most recent incarnation of the curves based on Beranek s work 1987 This curve family goes beyond a simple tangency method to try to ensure a more neutral characteristic to the noise spectrum and also accounts for speech interference such as rumble rattle and hiss NCB was recommended for use with HVAC systems and similar applications and accounts for lower frequency sounds in comparison to NC curves When setting NCB as the type on the meter you should use 12 1 unless a local ordinance or similar requirement specifies the use of a tangency technique This is usually specified in a standard Noise Criterion Curves NC With NC curve evaluation sound is measured in octave bands in 8 octave bands ranging from 63 to 8000 Hz and is then plotted on the octave band spectrum using a set of curves NC curve evaluation uses a tangency method A tangency method
127. nu use up down arrows to highlight and press Enter a II S setup Curves Curves screen MODE Evaluation mode TYPE D om kw CRITERION NC 30 Figure 6 13 Curves setup screen example 7 For the Mode press Enter repeatedly to select either Survey or Evaluation setting Please see explanation below e Survey Mode dynamically evaluates the noise and reports the appropriate noise curve Typically used if you wish to take multiple curve samples to evaluate and re evaluate noise in a room zone e Evaluation Mode evaluates the noise levels against specific criterion NOTE Whether you choose Survey or Evaluation mode the criterion curved results will report the same data 8 Select a type by pressing Up Down Aw to move to the Type field 9 Repeatedly press Enter o toggle between the five criterion curve options NOTE Depending on the Criterion curve you select you may or may not have the option to set the Criterion field If the Criterion field appears once you select the type adjust this field by using the Up Down arrows to move to the field and press enter repeatedly to change the criterion 10 Press On Off Esc S twice to return to the start screen e Torun your Curve study please see section Running and viewing a curve study SoundPre Models SE and DL 94 Audiometric background curves Setting up audiometric background curves Audiometric background curves The SoundPro SE DL series supports the followi
128. omizable charts and graphs with reporting capability with optional reporting capability M Note please reference the online DMS User Manual under Help menu DMS user manual for more information SoundPre Models SE and DL 122 AC DC output Using Detection Management Software DMS DMS and working with SoundPro data gt Viewing data and Data Finder Page 2 DMS Welcome page and instrument communication 1 Communicating connecting the Edge to the pc A Click on Misa icon see A to access the A Tun On he Sound Pro Instrument download panel B Plug in USB cable from SoundPro to pc 3 SoundPro and downloading A Select the SLM family and the SoundPro mode from the 4 Selecting and viewing data Instrument window see A Click on Go to session finder after A The Data Finder page see A is used to view select and downloaq bhox___ preview reports Note Click Browse to view all data files B Click the button See B B Select the data by clicking on either the session study Note E you may need to expand to see the study data C Once downloaded click the Data Finder tab if you did not selec C To view in Graphs and Tables click on 220 Jor go to session finder in step A See C Eaz buttons fm 3147 Setecnon Ma Data Finder page ter LTH RRM J after D So to Date Ande curioso D eren e EE Delete Y 5 Viewing Data in graphs amp tables amp Report View The graphs and ta
129. on s file You can post edit back erased data with DMS software How to back erase While running a study view the Time Log screen in either the View Current Study or the View Session viewing area If you see data that you would like to remove from the study press the pause key to pause the study Press the left arrow to move the back erase Time Line from right to left With reference to the Time Log figure below the Time Line starts at the Zero Marker and can be moved all the way across the screen to the 20 second Marker All of these characteristics help you identify the segment to be back erased Zero Marker Identifies the end of the back erased segment This is always the end of the study Time Line Identifies the beginning of the back erased segment SoundPre Models SE and DL 14 Back erasing Results of back erasing e Duration The length in time of the segment to be back erased is given in the Softkey Region of the display Time Line ee 00 20 30 Zero Marker ENTER To Save Softkey Region Figure 5 14 Time Log screen 4 You can adjust the Time Line by pressing gt 9 When you have the Time Line in position press amp The Time Line disappears and the softkey labels appear in the Softkey Region of the display To cancel this screen press lt gt to begin the process again The Time Line will reappear and you can select a different segment to back erase NOTE At anytime you can leav
130. on study The list below is a brief overview of the steps for running a study Quick Help List 1 Turn the SoundPro on and check your battery power See Chapter 1 2 Format the card or delete session files from the SoundPro o Formatting the card will clear out all of data before your study begins Choosing to select specific session files and delete will also clean up the instrument s sessions See Chapter 7 Adjust your settings to fit the specifications of your sound study See Chapter 4 and Chapter 6 Set the measurement range Chapter 5 Calibrate the SoundPro Chapter 5 Position the SoundPro in the field and connect appropriate external devices if applicable Press the Run Pause key to start the session Chapter 5 To Pause the session if needed press the Run Pause key Chapter 5 When you are ready to end your session study press the Stop key NOTE You must be in pause mode to stop a session study Chapter 5 Review your measurement results on the SoundPro display Chapter 5 Or view results in QSP II see Communicating in Chapter 8 SoundPre Models SE and DL 59 Preparing to measure Sessions and Studies Preparing to measure Sessions and Studies Before you begin running a session study there are a couple items to consider e Understanding sessions and studies e Adjusting the measurement range before running a study e Calibrating the instrument The following components explain how the data is
131. op the run by pressing the Stop key NOTE With Run Mode security enabled the Secure Run Mode screen always appears regardless whether the study was started manually by Auto Run or by Triggered studies About Secure Setup Setup Mode security blocks access to setup screens while in stop mode NOTE When in run mode the SoundPro automatically blocks the user from changing settings to ensure the settings remain the same throughout the session Once enabled and the user selects setup the Secure Setup mode prompt will appear and it prevents someone from changing settings until unlocked SoundPre Models SE and DL 47 Locking setup or run mode Setting secure run or secure setup locking gt Setting secure run or secure setup locking 1 From the start screen press the Lock softkey ma BR 00 00 00 START VIEW PAST STUDIES VIEW CURRENT STUDY VIEW SESSION SETUP UNIT INFO Lock Press 4 softkey to select Lock screen Figure 4 8 Secure Lock option 2 In the Lock screen there are two selectable fields e Secure Run Mode with a status line e Secure Setup Mode with a status line e Each Status Line is used to specify either a disabled state or an enabled state when a code is entered to assign an unlock code A Setting Lock feature e Enable or Disable Secure Run Mode LOCK SECURE RUN MODE DISABLED SECURE SETUP MODE e Enable or Disable Secure Setup Mode DISABLED III Figure
132. or pause mode or if you are viewing past studies If the session is in stop mode or closed press Aw to change the range 2 Softkeys If the session is in run pause or stop mode you can change the following Measurement displayed via the lookup softkey or Meter 1 Meter 2 screen If the session is stopped or closed then you can also change the response time and weighting Community Noise screen This screen shows the results of measurements commonly associated with community noise studies Results are only available in this screen for those measurements that are activated for the current session on meter 1 The screen components are explained in detail in the Measurement setup for Community Noise on pages 28 29 s Community Noise View we 07 30 30 Only appears on Meter 1 when you are not viewing the current study and when the community noise parameters are activated Exceedance levels e L1 99 dB e L10 85 1 dB e L50 82 9 dB CNEL 85 0dB TK3 90 0 dB Taxtmaximal e Value is 90 dB at 3 sec intervals GO rat a c z F METER 1 Figure 5 10 Community Noise screen M7 NOTE Community noise measures are determined only for sessions not for Studies so you will not see this screen when viewing current studies SoundPre Models SE and DL 70 Measurement screens Dosimetry screen Dosimetry screen The Dosimetry screen provides several types of measurements of the accumu lated personal exposure to no
133. ped in a protective case To attach and remove the microphone please follow one of the types below e BK4936 microphone Remove the microphone from its case and thread it on the SoundPro SE DL preamp in accordance with the instructions provided in the microphone case Note that the BK4936 microphone is provided with a Random Incidence Corrector RIC Use the same microphone instructions for information about using and installing that device e All other Class Type 1 microphones Remove the microphone from its protective case and thread it on the preamp Before using be sure to remove the plastic cap and save it in the case for future use e Class Type 2 microphones Remove the microphone from its protective case and thread it on No MAA the preamp Before using be sure to remove plastic a cap and save it in the case for future use Ve L J NOTE to properly remove the microphone please adhere to the caution sticker located on the backside of the instrument and the drawing to the right Windscreen Use a windscreen that fits the tip of the microphone to reduce sound disturbances caused by physical contact and wind turbulence 3M provides the WS 7 windscreen that fits a V inch microphone with every instrument kit If you didn t order a Y inch microphone or if you have one of different size you may wish to order a windscreen for the other size e Figure 2 3 SoundPro with microphone and windscreen SoundPre Models
134. pes e NC PNC NR NCB or RC are selected these will display in 1 1 octave only e lf Captured Curves are selected this will display in 1 1 octave or 1 3 octave e lf OSHA Audiometric is selected it will display in 1 1 octave only If ANSI Audiometric is selected it will display in 1 1 octave or 1 3 octave Curve measurements and results gt Running a curve study and viewing results 1 From the Start screen ensure you are in 1 1 or 1 3 mode Then press the Up Down arrows until View Session is highlighted 2 Press the gt Run key to begin your study When completed press pause and stop keys to end the session SoundPre Models SE and DL 97 Running and viewing curves Curve measurements and results 3 To view your results press Enter a The following screens appear a Sample 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 screen shows 1 1 octave band values in a table format see b below c Community noise displays community noise Please see Community Noise screen on page 69 for a screen example Jr 00 34 36 a 03 30 30 25082 45 0 oe 61 5 e 61 5 500Hz 45 1 90 59 1 1kHz 70 4 Bor C 31 57 9 2kHz 53 5 4kHz 42 6 8kHz 43 0 16kHz QQS rei a c z F METER 1 a Sample bar chart with curves b Tabulation screen d Dosimetr
135. r corresponding standardized names SoundPre Models SE and DL 4 Frequency resolution Naming bands Exact Center Names of Octave Names of Third octave Frequency Hz Bands Hz Bands Hz 12 589 15 849 19 953 25 119 31 623 39 811 50 119 63 096 79 433 100 00 190 00 __ Table 1 1 Acoustical range bands SoundPre Models SE and DL 5 Logging explained Analysis type Analysis type All SoundPro SE DL instruments are capable of analyzing sound signals over the full bandwidth of the instrument also referred to as broadband measurement If your instrument comes equipped with a filter it can perform an octave or a third octave analysis or both depending upon the type of filter installed You can vary the analysis type between sessions and the analysis type selection remains constant throughout the session Analysis types are identified in SoundPro SE DL by the following names e SLM Broadband measurements e 1 1 Octave filtering e 1 3 Third octave filtering e STI PA Speech Intelligibility Logging explained Although you can view the current sound pressure level at any time that the instrument is operating See Bar Chart and Filtered Bar Chart on page 67 most measurements are reported for data obtained over the entire course of a study or session In some circumstances however you may want to save intermediate measurement results The SoundPro DL logging option provides you with that capability With loggi
136. r log to port applications but may be used to communicate to a PC as well The optional 053 729 Serial Cable is required for RS 232 communications The SoundPro has two USB communications modes QSP Serial and Mass Storage SoundPre Models SE and DL 52 Communications QSP Serial QSP Serial Figure 4 14 For QSP I communications USB should be set to QSP Serial The RS 232 channel should be turned off for low power consumption Nk setup COMM SET USB QSP Serial RS 232 Off Lo Pwr BAUD RATE 4800 Figure 4 14 QSP Serial Mass Storage When the USB channel is set for Mass Storage mode the user will have direct access to the instruments SD card through programs such as Windows file manager Much the same way a small pocket USB flash drive operates When obtaining data from the SoundPro via Mass Storage it is important to remember that the data obtained is in Native SoundPro SES format It cannot be read with Excel Word etc A SoundPro SES to XML conversion utility is available BT NOTE When using Mass storage the user must use the Windows Safely Remove Hardware feature to un mount the SoundPro from the PC in the same manner a user must remove a flash drive This Windows feature is usually found in the lower right hand side of the windows systems tray IMI setup COMM SET USB Mass Storage RS 232 Off Lo Pwr BAUD RATE 4800 Figure 4 15 Mass Storage SoundPre Models SE and DL
137. rce 3M offers a line of acoustic calibrators that are available such as the QC10 20 Calibration screen The Calibration screen contains a calibration option called Calibrate and a Calibration History The history shows Pre Calibration Pre Cal and Post Calibration Post Cal results for previous calibrations as applicable For each calibration type the resulting SPL level is shown along with the time and the date of the calibration Pre Calibration The main reason to calibrate is to adjust the current microphone reading to match a reference input usually provided by a calibrator A Pre Calibration is conducted when the session is stopped When you calibrate during a stopped session the new calibration results replace the previous Pre Calibration results and the Post Calibration results are removed You will always see the last Pre Calibration results Post Calibration A post cal is really a calibration verification that is it does not change the instrument s calibration It compares the microphone s current level with the value read from the last calibration assuming that the same source is used A Post Calibration is a calibration done during a session pause When you SoundPre Models SE and DL 62 Calibrate Performing a calibration 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 Calibratio
138. rement type 2 Torun a captured curve study press Up Down Aw to select or highlight View Session and press Ente 3 In the View session screen select the appropriate meter 1 settings by using the corresponding softkeys for response time weighting and measurement type lookup key 4 Press Run gt to start your study Depending on if you chose survey mode see a below or evaluation mode see b below in the setup screen do one of the following a Survey mode when you are ready to capture a curve press Altf key on keypad and the softkey menu will expand Repeatedly press first softkey to assign a capture curve name You have four options Cap 1 Cap 2 Cap 3 or Cap 4 Then to Capture press the second softkey SoundPre Models SE and DL 91 Criterion curve families Types of Criterion Curves CAP 1 Press first softkey to assign a captured curve name i e CAP 1 CAP 2 CAP 3 or CAP 4 uate gt 000030 soz 51 6 4 57 0 Curve indicator 90 Capture Press Capture softkey to Capture a curve Figure 6 11 Capturing a curve CAP 1 b Evaluation mode to capture a curve the curve indicators will appear before and during your run It will automatically save the run with curve indicators and assign the name you applied during the Options setup To capture additional curves assign a new name via the Options menu and then run another test See Setting up Captured Curves
139. repeatedly press Enter a to select a specific range 10 Once set press Enter PB to return to the Start screen SoundPre Models SE and DL 103 Speech Intelligibility Conducting a level setup for STI PA Conducting a level setup for STI PA e From a fixed point measure the A weighted Sound Pressure Level of your mass notification system or alarm system When in the STI PA screen adjust the range as needed via the Up Down Arrows e The average dB level is displayed when in stop mode 7 NOTE the instrument will display the Las when in stop mode This is also called survey mode 00 00 00 Stop mode Average dB level Displayed while in run Rande or pause mode Press up down arrows to adjust the range values Average decibel Figure 6 20 Level set up and average decibel level Running a speech intelligibility study Before proceeding with a STI PA measurement ensure you calibrated the Verifier and conducted a Sound Level setup NOTE if there is impulsive noise present it is best to capture the background noise via the Captured Curve pop menu remove the noise or come back later when the noise is not present That is because impulsive noise and strong voices can skew the measurement results If you captured the background noise you would then come back when the noise is not present and apply the captured curve during a STI PA measurement See Applying captured curves for STI PA testing for more detail
140. ressing On Off ESC You will be at the start screen e If turned on ensure you are at the start screen by pressing On Off Esc S repeatedly until the start screen appears A 00 00 00 VIEW PAST STUDIES VIEW CURRENT STUDY VIEW SESSION UNIT INFO sim cal FILE Lock Figure 2 6 Selecting Setup in the Start Screen Setup 2 Press Up Down Aw arrows to highlight Setup and then press Enter B 3 In the Setup screen select Battery then press Enter a The Battery Check screen appears A F setup BAT CHECK Ext Figure 2 7 Selecting battery type in battery check screen B Press softkey to select NIMH Softkey buttons A Press softkey to select Alkaline 4 Press the softkey that corresponds with the installed battery type See A or B in Figure 2 7 for selection The label above the softkey is underlined to indicate the current selection 5 When completed press On Off Esc 9 once to return to the Setup screen and twice to return to the start screen SoundPre Models SE and DL 17 Providing power Using power supply or auto adapter Using power supply or auto adapter If you obtained the optional Universal power supply 9V cable or the Auto DC Jack 12 VDC adapter from Auto 3M plug them into their respective power sources adapter and the other end into the Power jack of the instrument If the external power source provides the correct voltage 8 16 VDC
141. ressing the left right arrow keys UNE Up 00 16 22 Sech Team 5 50 s Overall decay time Sound pressure level Decay curve RT60 To view RT60 results press softkey Figure 6 6 Decay curve screen M NOTE To delete a curve please see Deleting RT60 value in a filtered band above SoundPre Models SE and DL 86 Additional options Reverberation results Tabular RT60 screen This is a table formatted screen which details a summary of the Reverb Decay Curve of each band The following table is a brief summary of the tabular data Explanation of data The Frequency column displays the chosen filter bands for 1 1 Octave the range is 63Hz 8KHz and for 1 3 Octave the range is 50Hz 10KHz T60 column displays the results of the decay curve in seconds R column displays the reverberation time measurements The values represent a goodness to fit ranging between 0 to 1 values where O failed and 1 perfect 60 Txx column displays the actual measurements of the RT60s values Table 6 2 Tabular RT60 field explanation ME YU 00 16 22 FREQ T60 50Hz 1 24 988 Summary of the Reverb Decay curve results for each 63Hz 1 21 997 octave band 80Hz 1 73 995 100Hz 1 95 998 different ranges when Auto is NOTE The Txx value may show selected for the trigger mode 125Hz 1 78 999 Figure 6 7 Tabular octave filtering RT screen M NOTE if dashes appear this in
142. rned on press On Off Esc repeatedly until you return to the start screen see Figure 3 3 2 Press Up Down Aw to highlight Setup and then press Enter 3 Select Meter Set by pressing Up Down AN to highlight and then press Enter a 4 Tosetthe response time for Meter 1 press the second softkey repeatedly until the either Fast F Slow S or Impulse I is selected e Anunderline denotes which feature is selected 5 To set the weighting for Meter 1 press the third softkey repeatedly until either A C Z of F is underlined or selected e Toset Meter 2 response time and weighting press 4 softkey until Meter 2 is selected Then repeat steps 4 amp 5 6 To change the Meter parameters press Up Down Aw to select one of the Meter Set fields 7 To change any of the values press Enter a to move to the data fields e Continue to press Enter until the specified setting is selected Press the Left arrow to return to the Meter Set fields Parameters P Ent setup METER SET ee l 1 Meter Set fields THRESHOLD ee We Press up down EXCHANGE RATE arrows to move CRITERION LEVEL REM ena UPPER LIMIT 20 softkey Response time parameters i PROJ ECTED TIME 3 softkey Weighting A softkey Meter 1 Meter 2 Figure 3 4 Meter 1 and Meter 2 parameters SoundPre Models SE and DL 28 Basic setups Measurement setup for community noise M NOTE For quick and easy access there are three optional screens to change
143. rs during a study this indicator appears and remains lit until the beginning of the next study Alternate functions This icon appears below the Battery Charge Indicator when alternate functions are being displayed Overload condition When an overload occurs during a study Table 2 2 Screen Indicators SoundPre Models SE and DL 21 Turning off Navigating Navigating To navigate to menus and data screens the up down Aw arrows and left right arrows lt gt are primarily used The On Off Esc Ga button is also used as a navigational tool at any time you wish to move back one level If you press ESC repeatedly you will return to the start screen Turning off 1 To turn off the SoundPro ensure the meter is stopped i e Wi indicator will display on the top of the screen 2 Press and hold the On Off ESC Ga button until the start screen disappears SoundPre Models SE and DL 22 Turning off Navigating This page left blank intentionally SoundPre Models SE and DL CHAPTER 3 23 Basic setups Navigating Basic setups This chapter covers the basic features and setups of SoundPro SE DL that establish the instrument s operating conditions For information about the more advanced SoundPro SE DL features and their setups see Chapter 4 Advanced setups For information on setting up and measuring add on features Reverberation STI PA or Curves please see Chapter 6 e Microphone Settings e Setting
144. s on page 106 The following instructions explain how to run pause and stop a STI PA study without captured curves If you wish to take a background noise sample also called captured curves see Applying captured curves for STI PA testing for more details 106 7 NOTE it is optional to organize your measurements into Sessions amp Studies gt Howto run a STI PA study 1 The SoundPro should be powered on and you should be viewing the STI PA measurement screen SoundPre Models SE and DL 104 Speech Intelligibility STI PA results screens 2 Play the signal over the loudspeaker and then locate yourself in the appropriate zone room 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 Arrows from the STI PA screen 4 Press the Run key to begin your study 5 The meter will run for 15 seconds and then pause e To continue to take measurements repeat step 3 e To terminate vour study please see step 6 6 Press the Stop key to end your study Three viewable results screens are explained in the next section STI PA results screens The test signal is made up of 7 octave band signals which encompasses a combination of vowels and syllables from common speech There are 14 modulating frequencies that emulate a male female s speech patterns The STI method is based on the determ
145. s installed either broadband or filtered logging can be selected where filtered logging will depend upon the analysis type setting for the session Logging interval User selectable from among 11 settings ranging from 1 second to one hour Part numbers Replacement parts Part Number Wegen ze SE DL Class 1 BK4936 microphone kit BK4936 microphone 056 990 microphone to calibrator adapter and 059 344 windscreen 053 841 SoundPro SE DL Class 2 QE7052 microphone kit QE7052 microphone 056 990 microphone to calibrator adapter and 059 344 windscreen 053 700 SoundPro SE DL standard preamp 017 524 SD card 053 575 SoundPro SE DL USB cable to pc 056 164 Wrist strap 1 4 20 WS 3 windscreen for 1 0 microphone Package of 3 059 344 WS 7 windscreen for 0 5 microphone Package of 3 S 307 5 Windscreen for 0 25 microphone Package of 5 SoundPre Models SE and DL 134 Appendix A Optional parts Part Description Number and machined adapter to preamp 056 990 microphone to calibrator adapter and 059 344 windscreen microphone to calibrator adapter and 059 344 windscreen Q O QE4130 free field microphone 0 5 condenser type 489 QE4150 free field microphone 0 5 condenser type 488 QE4170 pressure microphone 1 condenser type O JO JO O On O1 O1 O1 al 00 00 00 GA al O CO N al A sch LO GA 9V Switching type universal power supply 057 860 Detection Managemen
146. satellite Figure 4 17 Comm Set screen for GPS data GPS explained The top two screen selections Interface and Baud Rate specify the GPS setup which is explained under Enabling GPS communications below The rest of the information in the screen appears when GPS communications is enabled and data is being received from a GPS satellite SoundPre Models SE and DL 55 Communications GPS Status line This data field at the right on this line tells you 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 e Position line When the satellite signal is being received there will be two data fields on this line that give the instrument s latitude N or S and longitude E or W position in degrees and minutes Other line When the satellite signal is being received there will be two data fields on this line that give the instrument s altitude and time in that order The altitude is given in meters above mean sea level The time is given for Greenwich England GMT and differs in hours from your time by the number of time zones between your location and Greenwich gt Enabling GPS communications 1 Ifa session is running stop it 2 Connect the RS 232 cable to the GPS receiver and to the auxiliary port of the SoundPro SE DL instrument Auxiliary port on page 7 3 Referring to the user manual for th
147. sured in 24 hour sampling interval and artificially boosted during certain hours Optional Settings Set to Off or On This measurement also commonly called C A measurement is only available under certain conditions Information about viewing and changing these meter settings is discussed under the next section C A measurement settings Optional Settings Set to On and Off See C A section below for parameter settings A time average over a sampling that uses the highest level occurring during the preceding Taktmaximal interval either three or five seconds and assumes it was present for the whole Taktmx interval Optional Settings Set to Off 3sec or Ssec SoundPre Models SE and DL 30 Basic setups Measurement setup for community noise C A measurement settings The C A measurement is determined from concurrent measurements of the SPL by both meters It can only be made if certain settings for Meter 1 and Meter 2 are compatible If any incompatibility exists the L selection in this screen will be marked N A Not Available If you want to activate L have the following settings in place before you visit the Measures screen e Thresholds Both meters set to Off or the same value e Exchange rates Both meters set to the same value e Time response Both meters set to the same value e Frequency weightings Meter 1 must be set to A weighting Meter 2 mus
148. t Software QC 10 Calibrator 114dB at 1000 Hz Output QC 20 Calibrator Selectable 94dB or 114dB at 250 Hz or 1000 Hz Output O al O de CO Description 1 2 inch Microphone to calibrator adapter for QC 10 and QC 20 calibrators 1 tri height range 18 5 in 48 9 in 045 TP 1 tripod SoundPro preamp extension cable 1 M SoundPro preamp extension cable 15 M 053 870 053 729 016 127 Direct coupled input adapter 059 703 Input adapter with 18 pF capacitor 053 711 SoundPro SE DL carrying case Number 053 851 053 852 __ 053 853 SoundPre Models SE and DL 135 Appendix A Port pinouts AC DC jack The pinout for the jack used for the AC DC signals is displayed below in Figure A 1 This 3 5 millimeter jack is the same type of jack commonly used for stereo outputs in music systems DC Out NY AC Out lt p 5 Figure A 1 Pinout for the AC DC output jack Auxiliary connector The auxiliary connector in the base of the instrument can be used for input and output triggers See Triggers to receive GPS signals or for RS 232 serial communications Figure A 2 shows the pinout for the auxiliary connector TX RTS RX CTS OUTPUT 3 OUTPUT 2 OUTPUT 1 TRIGGER IN GROUND Figure A 2 Auxiliary connector SoundPre Models SE and DL 136 Appendix A Block Diagram for SoundPro SoundPro SLM SoundPre Models SE and DL 137 Appendix B APPENDIX
149. t be set to C weighting Figure 3 6 is an example of the appropriate C A settings for Meter 1 left side and Meter 2 right side Please see Meter 1 Meter 2 Parameters on page 27 for setup details setup METER SET 1 THRESHOLD EXCHANGE RATE 03 dB CRITERION LEVEL 90 dB UPPER LIMIT 115 dB setup METER SET 2 THRESHOLD EXCHANGE RATE 03 dB CRITERION LEVEL 90 dB UPPER LIMIT 115 dB PROJECTED TIME 08 Hr F S A C 2 F METER 2 PROJECTED TIME 08 Hr SI A C Z F METER 1 Slow response A weighting Meter 1 Slow response C weighting Meter 2 e Press softkey to toggle between Meter 1 Meter 2 Figure 3 6 C A measurement settings for Meter 1 and Meter 2 SoundPre Models SE and DL 31 Logging Logging options Logging Logged Data Sample fr Se Hooker EI aaa Logging options Si gt aed a nE If the logging E Mee e ak a EECH purchased you will have the Ee eee ee ee A a as oe Ee ES E WE following four types of MORI O O ee ee ee SE MORONA DA 08 O E ee ee LES HESS measurement options E E A EE REES SIE ES EES 08 21 43 08 22 13 08 22 43 08 23 13 6 1 2007 6 1 2007 6 1 2007 6 1 2007 Date Time m Lavg 1 Lpk Figure 3 7 Logged Data Chart example e Average AVG on the display Peak Maximum MAX on the display Minimum MIN on the display SI NOTE When logging is enabled and you are viewing these measurements on the SoundPro display these are labeled as L_avg or L_eq if the exchange ra
150. table via the Reverberation Time Options Setup menu displayed in Figure 6 3 Field Description Explanation of field selections Method Selecting the calculation process of RT60 reverb time Averaging Selecting how it will calculate Average for Reverb time Threshold Specifies the dB level for triggering the start or run of the instrument The interpretation of this field is dependent on the measurement method Measure The expected decay value Filters 1 1 or 1 3 bands Table 6 1 Interrupted This is the default method setting Interrupted method uses a constant sound source i e dodecahedral speaker waiting for the level to stabilize and then the source is turned off The method uses random noise or pink noise to test reverb time Impulse Impulse method is when the user tests the room with a broad spectrum impulsive noise such as a starter pistol or a balloon popping Measurement The RT60 result times for each filter band of the 1 1 Octave or 1 3 Octave modes are averaged across the studies to arrive at a session average RT60 for that frequency band Ensemble The decay curves for each filter band of the 1 1 Octave or 1 3 Octave modes are averaged across the studies to arrive at an average session decay curve for that frequency band that is then used to calculate the session RT60 for that band This results in either eight or twenty four session ensembles one for each frequen
151. te is set to 3 dB L_Pk L Mx and L_Mn respectively See Chapter 5 Preparing to measure and running Exceedance level Up to two different exceedance level percentages ranging from 1 99 can be set in the Meter 1 Logging screen when the logging interval is set to 1 minute M7 NOTE if the logging interval field is not set to 1 minute N A not available will appear in the data field Filters The filter option is either a On or Off setting in Meter 1 and is only available if the instrument contains a filter option M NOTE The filter option must be set to on to data log filtered data Logging interval The logging interval is the length of time between logging events M NOTE The inverse of the logging interval is the logging rate SoundPre Models SE and DL 32 Logging Setting logging options Setting logging options To set logging only options Average Peak Maximum Minimum gt Enabling or disabling logging options 1 Ensure you are at the start screen e If turned on repeatedly press On Off Esc start screen see Figure 3 3 above Ga until you return to the e To turn on press and hold On Oft Esc OY until the start screen appears 2 Press Up Down AN to highlight Setup and then press Enter B E 3 Select Logging by pressing Up Down W to highlight and then press Enter di 4 To change the Logging options for Meter 1 do the following a Press Up Down Aw to hig
152. the filter if installed 1 1 1 3 or blank Line 2 Unique serial number assigned when the instrument was manufactured Line 3 The installed feature s field lists any extra options note these may be additionally purchased features as displayed above for Curves and STI PA AT NOTE It s a good idea to record Information screen data in the event that you need assistance and the instrument refuses to power up For 3M assistance see Contacting 3M on page 149 SoundPre Models SE and DL 9 Detection Management Software DMS DMS Start Page 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 Designed for dosimetry sound level measurements heat stress assessments and environmental monitoring the software helps safety and occupational professionals e Retrieve download share and save instrument data e Generate insightful charts and reports e Export and share recorded data Perform What If analysis and recalculate data based on selected time intervals Set up instruments and check for firmware updates Some data can only be displayed in DMS One example is logging data obtained when logging is enabled in an instrument equipped with that option Logging on page 33 Another example is with the GPS function When enabled the data is viewable in DMS
153. til you return to start screen see Figure 2 10 2 Press Up Down AN to highlight Setup and then press Enter e 3 Inthe Setup screen select Time Date then press Enter a 4 Inthe Time Date screen press AO to select either the Time Date Day fields Then do one of the following a For Time field press Enter repeatedly to highlight either the hour minutes or seconds Next press Up Down MAY to change the value b For Date field press Enter repeatedly to highlight either day month or year Next press Up Down Avy to change the value c For Day field press Enter a repeatedly to highlight either day month or year Next press Up Down Aw to change the value LJ NR _ setup TIME DATE _ _ _ TIME 11 33 11 a Time DATE 11 FEB 2008 b Date DAY MONDAY c Day Figure 3 2 Time and Date Settings SoundPre Models SE and DL 26 Basic setups Measurement type SLM 1 1 1 3 STI PA RT60 EN NOTE To move to between the time day day fields press Enter repeatedly until one of these fields are highlighted and then press Up Down arrow to move between the fields If you re finished working in the Time Date screen press On Off Esc S once to return to the Setup screen and twice to return to the Start screen Measurement type SLM 1 1 1 3 STI PA RT60 The measurement type is easily selectable at the start screen via a softkey button This is assessable at all times unless you are running a study To cha
154. ting past study data review mode SoundPre Models SE and DL 115 File directories Loading and deleting files 6 A bar chart or a filtered bar chart may appear depending on your measurement setting Press Enter a to view various measurement screens Review mode indicator Nn 30 110 Bar chart SLM mode results File path indicates the name of session study the analysis type SLM 1 1 1 3 Figure 7 6 Viewing past data example 7 Press Stop key to exit Review Mode The Pause icon will disappear leaving only the Stop indicator displayed on your screen Loading and deleting files As you are working with loading past files and possibly deleting files which have been imported into QSP Il it is important to note that the delete operations take place as soon as you press the respective softkey While you can re load a file you cannot un delete a file so be careful Loading and deleting files is accessed via the File softkey Session Directory menu gt Loading or deleting a file 1 From the start screen press the File softkey 2 Inthe File menu ensure Session Directory is highlighted if it is not press Ae until it is selected Press AB key 3 To load a file press Aw to select the appropriate file and press Load softkey see b or press a key skip this step if you are deleting a file SoundPre Models SE and DL 116 File directories Session directory 4 To delete a file if not applic
155. tions TWA Time weighted average The constant SPL over an 8 hour interval that would produce the same exposure to sound as an exposure measured over a run time sampling interval Rtime TWA ER log TH dt log CT dB 0 Upper Limit UL The total time during a study that the SPL exceeds the Upper Limit meter setting SoundPre Models SE and DL 147 Appendix B Weighting A C Z F SPL measurements are commonly weighted scaled in relation to their frequency components in order to provide a consistent basis for comparison to other measurements of the same type In addition to the standardized A C and Z weighting curves you can select F weighting flat which provides no weighting at all The four SoundPro SE DL weighting curves are plotted together in Figure B 5 where the F weighting curve has been shifted up by 5 dB for graphical clarity The tolerance limits for F frequency weighting are the same as A C and Z and SCH f J EE AFA deH GI t a am Frequency Hz Figure B 5 All frequency weightings plotted together Windscreen A covering for a microphone that reduces disturbances caused by wind and direct contact with other surfaces SoundPre Models SE and DL 148 Appendix B This page left blank intentionally SoundPre Models SE and DL APPENDIX C 149 Appendix C Customer service Customer service Contacting 3M Instrumentation Should your 3M equipme
156. top mode e To select a numeric code press Up Down arrows to select a number press Enter Mio toggle between the fields e Press On Off Esc amp repeatedly until the Start screen appears This will Enable the Secure Setup or locking setup mm gt 00 00 00 START SECURE SETUP MODE To unlock unsecure Press lock softkey and then enter in code Figure 4 12 Secure lock setup prompt Disabling secure run or secure setup unlocking You can disable Setup Mode security only when the session is stopped gt From Secure Run or Secure Setup screen 1 Both screens will have a Lock softkey see Figures 4 11 or 4 12 2 Press the Lock softkey and the code will appear see Figure 4 10 for example 3 Enter in the code using Up Down arrows to change value and Enter to move to next field 4 Press Enter to exit the code field Disabled will appear indicating the lock feature is turned off Secure code backup number If you forget your own security code you can enter 9157 in the template to disable Secure Run Mode or Setup Mode Security gt From the Start screen 1 Inthe Start screen press the Lock softkey The Lock screen appears 2 Follow Steps 2 4 above Setting secure run or secure setup page 47 SoundPre Models SE and DL 50 Digital outputs Triggering Tracking runs Digital outputs Triggering All digital output signals also referred to as Triggering appear on pins of the Auxiliary
157. ttempted or that have been subjected to abuse accidental or otherwise The above warranty Is in lieu of all other express warranties obligations or liabilities For warranty outside the United States a minimum of one year warranty applies subject to the same limitation and exceptions as above with service provided or arranged through the authorized 3M distributor or our 3M European Service Laboratory Foreign purchasers should contact the local 3M authorized sales agent for detail THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE ARE LIMITED TO ONE YEAR FROM THE PURCHASE DATE 3M shall not be liable for any other warranty express or implied arising out of or related to the appropriate use of hearing protection devices Manufacturer or its agent s liability shall be limited to replacement or repair as set forth above Buyer s sole and exclusive remedies are return of the goods and repayment of the price or repair and replacement of defective goods or parts SoundPre Models SE and DL 151 Index APPENDIX D AC DC Output explained cccoocccccocnccoo 122 POMO Calo EE 7 Alternate functions MACIO AAA 20 A eege 19 Aida 19 Attaching calibrator to the SoundPro 62 Audiometric background curves SelM U EE 94 Audiometric Background curves PRUNING RE 96 Auto Run Wale seting EE 38 Days Of week 40 Seting CALC iii 39 Auto run shutdown screen 42 Auxiliary POR IOCA Tinan 7 Avera
158. u choose Survey or Evaluation mode the captured curved results will report the same data The survey mode is recommended for Captured Curves since it is slightly easier to use in the field 8 Depending on your selection in step 4 refer to the following e If Survey Mode was selected please see step 6 e f Evaluation mode was selected press Up Down AY to highlight Criterion Repeatedly press Enter to select Cap 1 Cap 2 Cap 3 Cap 4 9 Press On Off Esc S twice to return to the start screen ME WM Curves screen setup Curves Mode Press Enter repeatedly to wad TIE e toggle between Survey and TYPE Captured CAP Evaluation modes Type Captured CAP automatically appears when you select Survey as the type Figure 6 9 Captured Curves and Survey mode SoundPre Models SE and DL 90 Captured curves Running captured curves Running captured curves Capturing a curve allows you to take a snapshot of the current octave noise profile Once the captured curve is selected and applied the SoundPro will automatically calculate the captured curve results with the STI PA measurement 1 From the Start screen select either 1 1 octave or 1 3 octave for the measurement type Repeatedly press first softkey Zi e 00 00 00 Selecting Measurement type START VIEW PAST STUDIES en Press first softkey until 1 1 or er 1 3 is selected Figure 6 10 Selecting 1 1 or 1 3 for measu
159. used to evaluate and measure sound decay in a specific space tailored to speech or music such as classrooms auditoriums gymnasiums concert halls theatres etc For room acoustic results are used to ensure quality sound is evenly dispersed throughout a specific room with limited echoes refractions For music or performance auditoriums i e symphonies higher reverb time is preferred so the ending results are more robust The Reverberation Time over each octave band can be analyzed using a decay curve Each octave band shows the time of sound at the start and after the activation of the noise system using either interrupted or impulse sound methods The example below displays the Reverberation Time in an enclosed room How it is measured with the impulse method 1 A starter gun provides a broad impulsive spectrum noise at 110 dB The instrument automatically begins plotting the sound decay see dB level 1 and stops as the noise falls off see dB level 2 Hence the rate of decay is calculated from decay curve or regression line which will give you the rate of decay in the room The RT60 measurement is calculated with the Txx time i e T20 factored in and extrapolated to a 60 dB drop 125K Revert Time T60 ge eee H level 1 Mechel Ze soe Decay Curve Drop of sound pressure from Maximum to its ambient background level level zZ 50 dB level2 Figure 6 1 Reverb Time Reverberation RT60 methods
160. using seven octave bands and 2 modulation indices per octave band simultaneously allowing a 15 second measurement In essence any noise which masks or corrupts the talker to listener path is evaluated and a recommended measurement is computed at the end of an intelligibility test The following sections briefly address points to consider when setting up a STI PA test Zones Where do measure speech intelligibility A building or stadium can be broken into zones Each zone has a room with one alarm system In some situations one room may have more than one alarm system or may have a change in ceiling height Such as an atrium or a balcony seating versus lower level seating In those instances each section would be considered a zone and each zone would be tested After determining the zones in your building it is recommended to design a map of the key zones rooms Generally a zone is a 20X20 area If the room is larger than 20X20 it is recommended to take another measurement in this section Selecting STI scale or CIS scale With the SoundPro you have two measurement options which will determine the intelligibility of your building which are the STI scale and the CIS scale explained below SoundPre Models SE and DL 99 Speech Intelligibility Selecting STI scale or CIS scale STI scale The scale identifies if the mass notification system is intelligible or unintelligible based on a STI scale ranging from 0
161. verage dB i 0 13 0 17 level in band 0 12 0 28 0 10 009 Signal to noise ratio for each band 0 45 Based on the CIS STI scale ranging 0 20 from 0 00 1 00 0 24 0 15 Figure 6 22 STI PA Modulation screen Table 6 4 defines the STI PA modulation frequencies for the seven octave bands per the IEC 60268 16 o First ee 63 2 00 frequency Second ege 3 15 10 0 frequency Hz Table 6 5 defines the STI octave band with specific male and female weighting 9 3 0 078 0 06 0 01 0 095 Ea 7 Females 0 117 0 250 8 4 0 099 0 06 0 06 0 076 WW 5 SoundPre Models SE and DL 106 Speech Intelligibility STI PA results screens STI PA modulation envelope screen This screen reports a summary of the STI PA modulation screen 1 To view each band s results press lt gt Arrow key 7 NOTE The results can be used to assess each frequency s band modulation level to determine why it passed or failed in order to correct any issues Lo MF Scale 0 63HZ 00 00 15 0 00 st 0 28 Scale Results of selected band Selected band MTF scale rating results across bands Figure 6 23 STI PA Modulation envelope screen Storing background noise capture curve In order to measure and store background noise prior to STI PA testing you will want to measure or capture the level via the Captured Curve Setup and then apply it during the STI PA test Note this is only performed if you do not want to play the
162. y screen shows dosimetry measurements see e below e Delta screen displays difference between the selected curve and current measurement in each filter band A positive value is the amount exceeding the curve see e Delta screen and reference A in the figure and a negative value is the amount below the curve NOTE for a captured curve it will display CAP 1 or applied captured 1 4 in the top left instead of a criterion curve NC 30 You may have to select LEQ to view the results via the Look up key GT 00 34 31 nl D gt Fan 00 35 02 MAX Mae 10 7 ga EE de 1KH d FAIL TWA se DIR OoOO EXP 00 p2s UL 00 00 03 Cem F S A C Z F METER 1 si A C Z F METER 1 d Dosimetry screen e Delta screen Figure 6 17 Curve results SoundPre Models SE and DL 98 Speech Intelligibility STI PA testing Speech Intelligibility Another available add on feature is Speech Transmission Index STI used to evaluate and classify speech intelligibility dependent of background noise level STI is the standardized measurement in the IEC 60268 16 1998 standard STI PA testing STI refers to the amount of modulation preserved in the broadcasting of an artificial speech signal through an alarm system The intelligibility measurement is a single value between zero and one which factors in corruption of speech with modulating speech frequencies over octave bands between 125Hz to 8kHz STI PA is measured
163. zards including noise dosimetry sound level monitoring heat stress indoor air quality and select toxic combustible gases The 3M Detection brand of instrumentation is used by safety and industrial hygiene professionals to help comply with applicable occupational standards and regulations About 3M Personal Safety 3M offers a comprehensive diverse portfolio of Personal Safety solutions providing respiratory protection hearing protection fall protection reflective materials for high visibility protective clothing protective eyewear head and face protection welding helmets and other adjacent products and solutions such as tactical safety equipment detection monitoring equipment active communications equipment and compliance management In 2012 3M celebrated 40 years of safety leadership recognizing the company s respiratory and hearing protection solutions introduced in 1972 Visit www 3M com PPESafety or http m 3m com PPESafety 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 Toll Free 800 245 0779 3M and SoundPro are trademarks of 3M Company used under license in Canada Please recycle Printed in USA 2013 3M Company All rights reserved 053 576 Rev K 4 13

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