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Sound Examiner SE-400 Series User Manual

1. o 0 03 0o 8000 10000 16000 Sound Examiner SE 400 Series 75 Data Addendum Pressure to random incidence corrections with QE7052 section 5 2 7 Note added to the pressure response to calculate random incidence response QE7052 microphone Random Incidence Frequency Corrections Oo EE NE po a NENNEN v w Oo os w w A wo as 0 w oo o w a w 00 om w EP ee e ss a 003 2 as 35 000 o mw o a 8000 10000 16000 Sound Examiner SE 400 Series 76 Data Addendum Pressure to random incidence corrections with QE7052 microphone and windscreen section 5 2 7 Note added to the pressure response to calculate random incidence response QE7052 microphone amp windscreen Random Incidence Frequency Corrections co 16000 Sound Examiner SE 400 Series 77 Data Addendum Windscreen corrections with BK4936 microphone Note add to the windscreen response to calculate the response without the windscreen Frequency Corrections in dB Windscreen corrections with BK4936 microphone and random incidence corrector ring RICR Note add to the windscreen response to calculate the response without the windscreen Frequency Corrections in dB Sound Examiner SE 400 Series 78 Data Addendum Windscreen corrections with BK4936 microphone RICR and remote preamp Note add to the windscreen response to calculate the response without the windscreen
2. Sound Examiner SE 400 Series 57 Data Addendum Pressure to free field corrections with BK4936 microphone and windscreen sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Corrections in Hz in dB 50 co Sound Examiner SE 400 Series 58 Data Addendum Pressure to free field corrections with BK4936 microphone and RICR sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Corrections in Hz in dB Sound Examiner SE 400 Series 59 Data Addendum Pressure to free field corrections with BK4936 microphone and RIC and windscreen sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Corrections in Hz in dB 00 Sound Examiner SE 400 Series 60 Data Addendum Pressure to free field corrections with BK4936 microphone and RICR windscreen and remote preamp sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator m
3. Sound Examiner SE 400 Series 67 Data Addendum Pressure to random incidence corrections with BK4936 microphone section 5 2 7 Note added to the pressure response to calculate random incidence response BK4936 microphone Random Incidence Frequency Corrections Nh 0 3 0 1 0 2 0 3 0 4 as IP T 10000 22 2 4 3 6 Sound Examiner SE 400 Series 68 Data Addendum Pressure to random incidence corrections with BK4936 microphone and windscreen section 5 2 7 Note added to the pressure response to calculate random incidence response BK4936 microphone amp windscreen Random Incidence Frequency Corrections co 16000 Sound Examiner SE 400 Series 69 Data Addendum Pressure to random incidence corrections with BK4936 microphone and RICR section 5 2 7 Note added to the pressure response to calculate random incidence response BK4936 microphone amp RIC Random Incidence Frequency Corrections in Hz in dB 0 3 0 3 0 1 0 1 co ar 000 8000 10000 Sound Examiner SE 400 Series 70 Data Addendum Pressure to random incidence corrections with BK4936 microphone RICR and windscreen section 5 2 7 Note added to the pressure response to calculate random incidence response BK4936 microphone amp RICR amp windscreen Random Incidence Frequency Corrections co 8000 10000 16000 Sound Examiner SE 400 Series 71 Data Addendum Pressure to random inci
4. Frequency Corrections in Hz in dB 0 4 0 5 4000 0 4 a e s 10000 0 4 1 2 16000 Windscreen corrections with BK4936 microphone and remote preamp Note add to the windscreen response to calculate the response without the windscreen Frequency Corrections in Hz in dB IT 04 04 0 5 04 0 3 0 4 0 5 4000 8000 10000 0 4 0 2 16000 Sound Examiner SE 400 Series 79 Data Addendum Windscreen corrections with QE7052 microphone Note add to the windscreen response to calculate the response without the windscreen Frequency Corrections in Hz in dB Display and Integration sections 5 15 5 5 15 6 5 15 7 9 2 5f The display update rate is 1 second The display is updated every second during integration Resetting Overload Under Range Maximum and Peak section 9 2 5 k Press the run key to reset This will reset the measurement data and the indicators The time to reset is immediate Minimum Maximum integration time sections 5 17 1 5 17 2 The Minimum Maximum integration time for measurement time average levels Measurement type Time average levels Reference direction section 9 2 5a The reference direction is at 0 for both BK4936 and QE7052 microphone The equivalent random incidence direction is 70 ACIDC Output Characteristics section 5 16 1 AC Output Weighting Z Weighting Range of Signal 2 5 Vp Output Impedance 2K Ohm Recommended load impedance 40K Oh
5. User Manual Figure 2 1 Identify SE 400 Series equipment DMS software gt e Optional feature Sound Examiner SE 400 Series 5 Turning on Softkeys Turning on To turn on the SE 400 Series press the D key until the start screen appears Note the warm up is 10 seconds Softkeys The softkey menus provide additional extension menus on the display and may be available in the measurement setup and calibration screens See Table 2 1 for details Setup icon The setup icon is used to access the main menu options including unit information settings calibration memory time date communications and security for secure run and secure setup modes Fast or Slow Response Time The response time setting determines how quickly the unit responds to fluctuating noise Typically noise is not constant If you were to try to read the sound level without a response time the readings would fluctuate so much that determining the actual level would be extremely difficult While the terms slow and fast have very specific meanings time constraints they work very much as you would expect The fast response would result in a more fluctuating sound level reading than would the slow response ACZ A C or Z Frequency Weighting These are frequency filters that approximate the equal loudness response of human hearing at low medium and high SPL s A frequency weighting is the most commonly used filter defined in the international standard
6. key twice Sound Examiner SE 400 Series 2 SoundPatrol feature non IS models only Printing and reports Printing and reports The SoundPatrol features non IS models only an easy to access print icon E located on the measurements and calibration screens which is used for report printing when connected to the handheld printer sold as an option The following three reports are explained below SoundPatrol Reports and Samples 1 Second Continuous Data Report TResponse SLOW Time SPL Leg Weight C 2 68 0 67 4 3 69 0 68 0 4 70 1 68 4 5 71 3 69 2 6 71 2 69 8 7 68 1 69 8 3M SE 400 R 10D S N SEKO6BETA06 Summary Data Report TResponse SLOW SPLmax 78 8 dBA Leq 71 5 dBA Lac 84 9 dBA SPLmin 64 4 dBA Runtime 00 00 17 Date 15 Mar 2012 Time 9 21 54 Location By Calibration Report 3M SE 400 R 10D S N SEKO6BETA06 TResponse SLOW CALIBRATION DATE 14 21 05 15 MAR 12 CALIBRATION INFO Old SPL 113 8 dBA Ref Level 114 0 dBA New SPL 114 0 dBA The 1 second continuous data report provides a printout of 1 second measurements of the sound pressure level values and the average Leq values at the appropriate time response fast slow and frequency weighting A C or Z e To print the 1 second continuous data report power on the SE 400 Series and press the Drey while the printer is connected Once in run mode press the softkey from the measurement screen a
7. 1 2 O dd 3 Figure 1 5 Acoustictlata and DMS charting example atada 3 Figure 2 1 Identify SE 400 Series equIDITIGTIL sd ii 4 Figure 2 2 Measurement Scl eal act AAA AAA 6 igara 2295 CHARGING Ma T Figure 3 1 Response time and frequency weighting nennen nennen tenerent nennen nennen 8 PIQUE 9 2 penno Me SEMI SCHEBITo xcti isa e S CoD Den eee e ete Deco e De De ceo De e eMe cool 9 Figure 9 9 CHOOSING MEEF SO UII Saget m 10 Figure 3 45 CHOOSING METER AAA A Pe liek uaa A R 10 Fldure 355 UAE IN TORMALIG Mk Sere isis 11 Figure 35 TINE andate Setup SEG Cn d o eere eet e e tede aded a d e 12 RIGUIC S 72 AUTO RUM SCICSI en ette i dali da 13 PIJUS O AUTOS RUNS CIS SIN ta AAA et tc adt ibn vita AAA eA utat A 13 Figure 3 9 Secure run and measurement screen e E OOOO 14 Figure 3 10 Deleting sessions files and viewing memory ccccsesssssssssssssssssssssssssssssssssesssesssesssesssesesssssesssesssssssesssesssesesesssssssssssseesesessesstereeetereees 15 Figure 4 1 SE400 series and CallDralllit cett tient e tet D e E D ERR D RR UHR RE CR RE SR RR RR ER dU 17 Figure 4 2 Calibration Mea 17 re or en Oy Petree ee ee I eet ME eee e tet eee cet ree 18 sil Me Por e ee a 18 Figure 4 5 Example or logged dala DM itt ter eb per b aae Gab perc Gab abeo Gassen peras ab atero ssa Perche iei 19 Figure 4 6 SE 400 Series with windscreen tle descen eric esce be tem besten eric e
8. 1000 100000 Frequency Hz Directional frequency response positioned side toward noise source 0 90 incidence angles 5 Frequency Hz Sound Examiner SE 400 Series 97 Index Directional frequency response positioned side toward noise source 0 150 incidence angles gp 9 ngjoW Frequency Hz Directional frequency response positioned side toward noise source 0 incidence angles 180 HEEEEEEEEA HET ERS Es MINS EHEREREEDE 230239 37 3 eee Plc pee ett tt EH EREEEEHEHEEHI e P gp sanejay Frequency Hz Sound Examiner SE 400 Series 98 Index BK4936 microphone using remote preamp Tolerance IEC 61672 class 1 Directional frequency response positioned with a remote preamp 0 30 incidence angles 5 Relative dB 100 100000 Frequency Hz Directional frequency response positioned with a remote preamp 09 90 incidence angles 5 Relative dE Frequency Hz Sound Examiner SE 400 Series 99 Index Directional frequency response positioned with a remote preamp 0 150 incidence angles HP 9502104 Frequency Hz Directional frequency response positioned with a remote preamp 0 incidence angles 180 EESEEBEENB jt Hp 9ADnE 9 Frequency Hz Sound Examiner SE 400 Series 100 Index BK4936 microphone using windscreen amp remote preamp Tolerance IEC 61672 class 1 Directional frequency response using windscreen amp remote pream
9. IEC 61672 2003 Common applications of A weighting include industrial noise applications and community noise regulations The A frequency weighted filter makes the sound level meter respond closer to the way the human ear responds to noise at lower levels It attenuates the low frequency noise below several hundred Hertz as well as the high frequency above six thousand Hertz C frequency weighting is intended to represent how the ear responds to very high levels Z weighting is a type of flat response Printer icon is used for an add on feature referred to as the SoundPatrol available on SE 400 Non IS models only This feature enables one to print to a hand held printer while measuring or after a run or session Note this may be used for noise enforcement situations AL CAL Cal or Calibration screen is used for calibrating the SE 400 Series OCK LOCK Shortcut to the secure modes screen Enables and disables secure and setup modes Up Arrow indicator Used in the calibration screen to increase the calibration value Bm Down arrow indicator Used in the calibration screen to decrease the calibration value Table 2 1 Softkeys explained Screen indicators The screen indicators located at the top of the display are a notification tool to alert the user of operational functions See Table 2 2 for details u Secure Lock indicator appears if security for run or setup is enabled OL Overload indicator appears whenev
10. Logged Data Logged measurements compute the peak maximum minimum sound exposure and average values over a run time at the user selected logged interval When in a run or a session logged data is automatically stored in the instruments memory The summary data is viewable on the display of the instrument while the logged data is viewable in DMS Below is an example of DMS logged data chart BaDnogkesaa 9 Lea Lle a nn n Lpk 1 79 5 dB at 4 21 2011 8 17 13 AM e Peak values over the run time eMaximum values over the run time Date Time 84112421 4201 kidd biii kikid hidd Lidd Lidd bidd bidd bidd 111 AEE EEEE EEEE LEE i qiias poequaoqueequas e bidd bidd CL bhid kidd kidd 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 08 00 21 April 2011 08 00 Figure 4 5 Example of logged data in DMS Windscreen The SE 400 Series features a removable windscreen which is primarily used to help reduce noise effects from wind with minimal effects on the readings Itis recommended to place and use the windscreen over the microphone at all times to help protect the microphone lt 4 Windscreen The windscreen is placed over the microphone Figure 4 6 SE 400 Series with windscreen Sound Examiner SE 400 Series 20 Measure Positioning and tripod mount Positioning and tripod mount For area monitoring and general sound level sessions hand held measurements are conducted by positio
11. SE 402R model and the preamplifier The cable may be purchased separately see Accessories in Appendix A Attaching the preamp 1 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 2 Rotate the preamp ring until secure Connecting an extension cable Optional Extension cables are available from 3M They are typically used to make remote measurements by distancing the microphone from the instruments body 1 To connect the microphone to the extension cable first remove the preamp from the SE 400 and familiarize yourself with the extension cable ends Extension cable with connector pins see A connects to the top of the SE 400 Extension cable pins with white molding see B connects to preamp pg pins aligns to extension cable pins see C Figure 4 17 Example of extension cable and preamp 2 Insert the extension cable s pins see B above into the preamp noting it will snap into place when the pins are aligned correctly Next twist the black nut on the preamp counter clockwise unit it fits securely 3 Insert the opposite end of the extension cable to the top of the SE 400 and twist the silver ring until it is fastened down Figure 4 18 SE 402R with extension cable and preamp attachment when equipped Sound Examiner SE 400 Series 29 Sound Examiner non IS models and logging r
12. Sound Examiner SE 400 Series 48 Data Addendum Nominal BK4936 microphone frequency response diffraction and reflection with random incidence corrector RICR corrections section 5 2 8 Note Add correction to electrical frequency response Nominal Frequency Hz Nominal corrections in dB Nominal Frequency Hz Nominal corrections in dB 2985 3162 0 3 3350 3548 seo uw see emo ug wer ow m sot 5300 562 sos ga ss 7079 2 1 7499 2 6 7943 2 8 8414 3 0 8913 3 3 1058 11220 3 8 11885 13335 14125 2 8 14962 2 3 Sound Examiner SE 400 Series 49 Data Addendum Nominal BK4936 microphone frequency response diffraction and reflection with RICR and windscreen corrections section 5 2 8 Note Add correction to electrical frequency response Nominal Frequency Hz Nominal corrections in dB 8 l o 1 100 0 3 125 0 4 160 200 250 315 0 2 400 0 Nominal Frequency Hz Nominal corrections in dB 500 630 800 1000 1059 me em 2 2 2 1 1 0 0 1189 1259 0 2 1334 0 1 1413 1496 1585 1679 1778 0 2 m pw pe 0 7 0 7 Sound Examiner SE 400 Series 50 Data Addendum Nominal BK4936 microphone frequency response diffraction and reflection with remote preamp corrections section 5 2 8 Note Add correction to electrical frequency response ANN Frequency Hz Nominal corrections in dB C o a e 125 0 3 160 0 1 200 250 Nominal Frequency Hz Nominal corrections in d
13. Study 1 m b Add Panel Calibration History Panel gil Statistics Chart Im Statistics Table 24 Logged Data Chart Logged Data Table dy Filter Summary Chart Ed Filter Summary Table Date Time A O O O O O O prq O O O O O S076_BIF090010_21042011_143336 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 S076_BIF090010_21042011_143336 ques TELLE CELIE TELELE CLIL LED LALE CEEE CLEE CELE CALE LELE CELT S076_BIF090010_21042011_143336 08 00 21 April 2011 08 00 Figure 1 3 Acoustic data and DMS charting example Sound Examiner SE 400 Series CHAPTER 4 Getting Started Checking the equipment 2 Getting Started This chapter provides the basic information you need to get up and go essentially right out of the box including receiving your first glimpses of sound pressure level SPL Checking the equipment If your instrument was sent in a storage case you will want to remove the packaging and acquaint yourself with the equipment so you can quickly get started The items below are included in a standard sound Examiner SE 400 Series kit with a calibrator SE 400 IS model SE 400 non IS m Microphone Removable Preamp when equipped on model SE 402R ab x AcoustiCal with adapter USB cable pue USB power cord with universal plug adapters eu Windscreen ow BA 4 SE 400 Series
14. Weighting 2 FS IA C z D SoundPatrol feature provides printing capability non IS models only Sound Examiner SE 400 Series 3 Connectors Ports USB Connectors Ports AC DC output SE 400 non IS model only I O and serial printing connector SE 400 non IS model only 3M The Hardware connector ports are identified below Note the SE 400 IS models are equipped with USB connector only USB connector for charging Figure 1 2 Connector and ports USB A USB cable is shipped with each Sound Examiner One end fits the mini port in the instrument The other end fits a standard USB connector on a personal computer A USB connection to a computer allows files to be transferred settings to be downloaded to the instrument and post session analysis to be performed with the DMS software It is also used to charge the internal battery of the SE 400 Series Detection Management Software DMS DMS is a software application from 3M that is used for a variety of Sound Examiner functions including the ability to display and manipulate data after it is downloaded to the computer from the instrument Additionally DMS is used to download measurement data for advanced graphing charting and reporting analysis i Detection Management Software File Configure Manage Tools Help Instrument Communications Data Finder S076_BIF090010_210 X B8aD0ORhkesaqa Cer 90 DL ea Lie las 4 S076 BIFO90010 21042011 1433 80
15. and or changing the setup parameters A 4 digit pin code is used to enable and disable or change the security lock setting gt Note to unlock or change a default lock key may be used if the lock code is not available forgotten The default code is 9157 Lock unlock secure run When in secure run mode a lock symbol 5 will appear in the screen indicator section The end user cannot stop the session unless one unlocks the SE 400 Series Note if stop is pressed during secure run the screen will display the following alert message In secure run mode To unlock type in the 4 digit code and press the enter key Lock unlock secure setup e When in secure setup mode a lock symbol appears in the screen indicator section To unlock type in the 4 digit code and press the enter key gt Secure run mode and secure setup mode locking amp unlocking 1 From the setup screen select Security by pressing the en e keys and press e key 2 Toenter a code press the O keys to select a value Press Q ies to move to the next field Repeat as necessary until the 4 digit code is entered 3 Press e ey to save the code or D key to abort 4 To exit the screen press D key 5 To unlock press the lock softkey or navigate to the security menu selection from the setup screen 0 00 00 ML Secure Run 00 08 45 cc m sup t f 4 digit lock code will A L A prevent changes when 75 2 gSecure Run ELUI da Lock icon ALASmx 93 4
16. duration or timed run and then manually start your study The Auto Run will end when the duration expires Setting the Timed Run 1 From the setup screen select Auto Run by pressing the O keys and press e key 2 Auto Run will appear To select disabled or timed run field press the e key 00 22 49 To activate change the disabled field to AREEN Disabled Timed Run following steps above Figure 3 7 Auto Run screen 3 To select timed run press Y keys until it appears and press e key The duration field will appear See Figure 3 8 below e Note to turn off this feature repeat this step until disabled appears 4 To enter in a time press e key to move the time field Using the e O keys change the time and press e key while repeating this to move to the hours minutes and seconds field 5 Press e key to save and press EY key twice to return to the measurement screen e Note Remember to manually press Run key to begin the Timed Run Auto Run Timed Run Timed run is set for 8 hours and 30 minutes Duration Figure 3 8 Auto Run screen Sound Examiner SE 400 Series 14 Setup instrument configuration Security locking and unlocking run setup Security locking and unlocking run setup You can prevent people from inadvertently terminating a session or changing settings with the security lock feature enabled Once the code is entered the security feature will prevent someone from stopping a run
17. through measurements e A single measurement displays one measurement in larger font Press P e arrow to scroll through the measurements e To toggle between the two types of screens presse key a E 55 50 80 Stop icon 7 7 Sound Pressure Level e Noted as LAS A weighted and slow response l L4 14 AUG 20 Figure 2 2 Measurement screen displaying multiple measurements Navigating eTo navigate through the menus and data screens press the e c arrows 9 arrows or press one of the softkeys Navigating single measurement screen e The Enter amp key is used to select menus and toggle through settings e The On Off Esc D key is also used as a navigational tool to move back one level If you press ESC repeatedly you will return to the start screen Turning off To turn off the SE 400 Series ensure the meter is stopped gt Note The stop indicator will be at the top of the measurement screen 1 Press and hold the ED key until the measurement screen disappears e The SE 400 Series will countdown from 3 seconds prior to turning off Sound Examiner SE 400 Series Turning off Charging Charging The SE 400 Series is charged using the supplied USB charger or a personal computer s USB port A fully depleted battery will require approximately 8 hours to fully charge when using the external battery charger Note 3M recommends charging using the supplied USB charger Some computers are unable to s
18. to eliminate or reduce the background noise use the curve shown in Figure 4 to correct for the effect of the background noise on the measurement For example if the background noise is 45 dB and the sound of interest measures 51 dB the difference between measurement and background noise is 6 dB From Figure 4 for a 6 dB difference 1 3 dB should be subtracted from the measurement The correct measurement is therefore 51 dB 1 3 dB 49 7 dB Sound Examiner SE 400 Series 43 Data Addendum Frequency weighting sections 5 1 10 5 4 12 A Weighting Nominal The graph below is the nominal A weighting frequency response 10 NE 10 20 A LH AAA ATT IT MAC co oY AHH AE LUI FALLI a 1 LIU HELIUULL 100 1000 10000 100000 Frequency Hz N 30 Relative dB C Weighting Nominal The graph below is the nominal C weighting frequency response LIE TIERS MY LLL LIT ACMI LOU LT ALIE LITE DUO Frequency Hz SIMI NN INTI Relative dB 10000 Sound Examiner SE 400 Series Relative dB Relative dB 44 Data Addendum Z Weighting Nominal The graph below is the nominal Z weighting frequency response Frequency Hz A Weighting Typical ACA Ht HERR The graph below is the frequency typical A weighting frequency response SSA f q HH uf BAI 100 1000 Frequency Hz EN n EE rs 10000 100000 Sound Examiner SE 400 Series Relative dB Relative d
19. 1 1 I I 1 1 I I I I 1 I I I u i Frequency Hz Sound Examiner SE 400 Series Relative dE Relative dB 86 Index QE7052 microphone with windscreen side facing Tolerance IEC 61672 class 2 Directional frequency response positioned side toward noise source 09 309 incidence angles 10 Frequency Hz Directional frequency response positioned side noise source 09 90 incidence angles 10 Lt or T E me EE E E Wess E mM a Frequency Hz Sound Examiner SE 400 Series 87 Index angles 0 incidence Directional frequency response positioned side noise source 0 15 Hp gery Frequency Hz Directional frequency response positioned side noise source 09 180 incidence angles E CS CEPR CO te AA URGE C CUP Tea a HHE AHHH A ETE a ap sang s Frequency Hz ound examiner oE 4UU Series Relative dB Relative dB 88 Index QE7052 microphone with windscreen back facing Tolerance IEC 61672 class 2 Directional frequency response positioned facing side toward noise source 09 309incidence angles 10 5 Frequency Hz Directional frequency response positioned facing toward noise source 0 90 incidence angles 10 E Frequency Hz sound Examiner SE 400 Series Relative dB Relative dE 89 Index Directional frequency response positioned facing toward noise source 09 150 incidence angles 10 Frequency Hz Directi
20. 3M Personal Safety Division 3M Sound Examiner SE 400 Series Sound Level Meters with Intrinsically Safe models Sound Examiner SE 400 Series So User Manual S00009 SES SE 401 SE 402 SE 401 SE 402 non IS models Intrinsically Safe models j Dangers Warnings Cautions amp Battery IS models 3M Sound Examiner SE 400 IS Series Sound Level Meter Dangers Warnings Cautions amp Battery A Failure to observe the following procedures may result in serious personal injury e Contains built in lithium polymer battery Do not incinerate or dispose of in fire Do not disassemble alter or re construct e This product must not be charged in hazardous locations A Failure to observe the following procedures could damage the instrument e X Readthe manual before operation e Donotstore in temperatures outside 20 C to 60 C 13 F 140 F e X Donotimmerse in liquids e Condensation may damage your instrument General e Substitution of components may impair the accuracy of the instrument Repair should be performed by authorized service personnel only The battery in this instrument has limited shelf life even if never used A non condensing environment is required for proper measurements Do not charge battery outside the range of 0 C to 40 C 32 F to 104 F Battery run time may be reduced when operating at lower than 0 C 32 F temperatures Contains Lithium Cell 4 2V 1500 mAH do not attempt to replace in a
21. 523 BK4936 Free field Class Type 1 Microphone standard 77 diameter 52 34 8708 6285 0 3M Sound Examiner SE 400 Series User Manual one included 70 0716 2097 8 057 343 Cable open ended tinned wires for SoundPatrol SE 400 user printer Sound Examiner SE 400 Series 34 Appendix B APPENDIX Glossary of Terms 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 considered 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 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 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 measu
22. B 2085 3162 0 2 3350 0 2 3048 0 3 3758 0 473 T 5309 5623 ce 315 400 Sound Examiner SE 400 Series 51 Data Addendum Nominal BK4936 microphone frequency response diffraction and reflection with remote preamp and windscreen corrections section 5 2 8 Note Add correction to electrical frequency response gnam Frequency Hz Nominal corrections in dB 8 2 6 al 0 2 ce N o 0 0 5 DO al 3 40 o o co o Nominal Frequency Hz 2985 3162 nm o 3981 4217 4467 4732 5012 5309 5623 5957 6310 6683 7079 7499 7943 8414 8913 9444 10000 10593 11220 11885 12589 13335 14125 14962 15849 Nominal corrections in dB 0 3 0 3 0 3 0 3 0 3 0 2 0 2 A wo pe 1 3 1 8 2 5 2 8 Sound Examiner SE 400 Series 52 Data Addendum Nominal BK4936 microphone frequency response diffraction and reflection with remote preamp and RICR corrections section 5 2 8 Note Add correction to electrical frequency response E eaaa dr Frequency Hz Nominal corrections in dB Frequency Hz Nominal corrections in dB ea v 2818 0 2 2985 0 3 3162 0 3 3350 0 4 3548 0 4 3758 0 5 3981 4217 4467 e e O 100 125 5012 5309 5623 5957 6310 6683 7499 7943 8414 8913 1 0 3 1 m 1000 1050 11220 3T 11885 4 0 12589 4 1 13335 3 5 14125 3 i664 Sound Examiner SE 400 Ser
23. B i 45 Data Addendum C Weighting Typical The graph below is the frequency weighting Typical C weighting frequency response ae Ht OS I Mi iN MI I 5 ACL ODE LUT LL LLL LH T ATEN 10 100 1000 10000 1 20 a Frequency Hz The graph below is the Typical Z weighting frequency response NASI TTI A CLS HIC BAN HU DSL N AR 1000 10000 Frequency Hz Sound Examiner SE 400 Series 46 Data Addendum Nominal BK4936 microphone frequency response diffraction and reflection corrections section 5 2 8 Note Add correction to electrical frequency response Nominal Frequency Hz Nominal corrections in dB Nominal Frequency Hz E RT A E MI NER NN 14962 15849 Sound Examiner SE 400 Series 47 Data Addendum Nominal BK4936 microphone frequency response diffraction and reflection with windscreen corrections section 5 2 8 Note Add correction to electrical frequency response Fa oT Frequency Hz Nominal corrections in dB le O 12 0 4 6 200 o 15 0 2 400 0 Nominal Frequency Hz Nominal corrections in dB ae looo ow o 0 1 02 sre 3981 0 4 ima 5012 0 1 5309 5623 5957 6310 6683 500 630 800 3 v woo 00 5 0 1122 1189 0 1 1259 0 2 1334 0 1 1413 1496 0 1 1586 7499 7943 8414 8913 m 0 3 9441 0 3 10000 1058 11220 14125 14962 15849 1679 1778 211 2239 0 3 2371 0 3 2512 0 2 2661 0 3 2818 0 3 2088
24. Hz SPLC Weighting LEQ C Weighting Linear Operating Range dB Linear Operating Range dB Sound Examiner SE 400 Series 41 Data Addendum Linear operating range with SPL Z Weighting and LEQ Z Weighting sections 5 5 10 5 5 11 9 2 7e 9 3e 9 3f Note Reference level 114 dB Cal Point 400mVrms 114 dB 1 kHz Frequency SPL Z Weighting LEQ Z Weightinc Linear Operating Range dB Linear Operating Range dB Electrical signal input sections 5 1 15 9 3 The equivalent input voltages for Type Class 1 and Type Class 2 at 1 kHz are listed below Maximum input level sections 5 1 16 9 3i The maximum acoustic input level is 150 dB The maximum level at the electrical input is 11 VAC Self generated noise levels sections 5 6 1 5 6 2 5 6 3 9 3 Level of self generated noise in decibels dB Applies to time average and both fast and slow time weighting To measure 12 pF 50 Ohm connect a standard 50 Ohm terminator to the 073 738 12 pF 50 Ohm input adapter to the preamp input A Weighting E EAS 349 0 0 QE4936 QE7052 12 pF 50 Ohm input adapter Sound Examiner SE 400 Series Correction in dB 42 Data Addendum Peak C Level Range The nominal peak C level range is 55 dB to143 dB Effects of background noise sections 5 6 4 5 6 5 9 2 5d Background noise can cause considerable error in measurement when its intensity is close to that of a particular sound source of interest When it is not possible
25. aracteristics Microphones e Supports Class Type 1 and Class Type 2 microphones e BK4936 or equivalent Free field Class Type 1 Microphone standard Y diameter 1 3cm Electret e QE 052 or equivalent Free field Class Type 2 Microphone standard low cost 2 diameter 1 3 cm Electret Sound Examiner SE 400 Series 31 Appendix A Measurements Parameters Frequency Weighting Las Lmax Luin Lex Lea Lave Le Elapsed Time A C Z Peak Frequency Weighting A C Z Response Time Range Max Peak Level Exchange Rates Status Indicators Calibration Calibration method Fast and Slow 110 dB total dynamic measurement range Overall measurement range 30 to 140 dBA single range 143 dB sampled peak 3 4 5 dB Run stop battery status OL overload UR under range Run Time locked status Manual user adjustment with external calibrator Calibration history will display date time of calibration Mechanical Characteristics Physical Characte Size Weight Housing Tripod Mount Ingress Protection Drop Protection ristics 11 2 L X 2 8 W X 1 3 H with preamp amp microphone 28 4 cm L X 7 1 cm W X 3 3 cm H 410 g 14 50z SE 401 IS model including preamp and microphone 410 g 14 50z SE 402 IS model including preamp and microphone 367 5g 12 960z SE 401 model including preamp and microphone 380 5g 13 420z SE 402 model including pre amp and microphone Stainless fiber fill
26. ates Connecting an extension cable Sound Examiner non IS models and logging rates When logging is enabled the following parameters are logged Lmax Lmin Lreax and Lea ata specific logged interval The SE 400 non IS models will log approximately 57 600 records per parameter in 60 seconds at 40 days with a 2MB card Below i IS a table outlining different logged intervals with the number of days it will log Seeon ELE Sound Examiner SE 400 Series APPENDIX A 30 Appendix A Specifications Standards Directives e EC 61672 1 2002 Electroacoustics Sound Level Meters and Part 1 Specifications e IEC 61010 1 2010 2002 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory use Part 1 General Requirements Revision Edition 3 e IEC 61000 4 2 2008 Electromagnetic Compatibility EMC Part 4 2 Testing and Measurement Techniques Electrostatic Discharge Immunity Test e IEC 61000 4 3 2008 Electromagnetic Compatibility EMC Part 4 3 Testing and Measurement Techniques Radiated Radio Frequency Electromagnetic Field Immunity Test e ANSI 1 4 1983 R2006 American National Standard Specification for Sound Level Meters e ANSI 1 43 1997 R2007 American National Standard Specifications for Integrating Averaging Sound Level Meters e CE mark 0539 SE 401 IS model and SE 402 IS model e UL listed E87792 SE 401 IS model and SE 402 IS model Acoustical Ch
27. ay be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Corrections in Hz in dB Ll de anc Y o as v IN 0 w O a M 8000 10000 as Sound Examiner SE 400 Series 61 Data Addendum Pressure to free field corrections with BK4936 microphone and remote preamp sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Corrections in Hz in dB Low 3 U y a w O poo a O IN 0 0 0 04M O o o8 v O oo 0 O apo a NN oo 0 0 0 0 0 O o w v O oa O las 0 000 00 la w O o8 y O o aw 0 ee O w v O w 0 0 O mm 0 0 o ma O ome o omm o e sm o 00 09 o o a n O o 8000 10000 16000 oo T Sound Examiner SE 400 Series 62 Data Addendum Pressure to free field corrections with BK4936 microphone and remote preamp and windscreen sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Corrections 8000 10000 16000 Sound Examiner SE 400 Series 63 Data Addendum Pressure to free field corrections with BK4936 microphone and remote p
28. ctional frequency response positioned back side toward noi 1 Td TERNI ub EUG Hp 5029 ERR tt tt Frequency Hz Directional frequency response positioned back side toward noise source 0 180 incidence angles RA o FSEUSTSSERIETSESEEES ENEE EE E E A EE a F CARRE vf A SUA MO tt We PET TE cdc fotitos WPA LL HL B RB BL Ms j se TT TTT EEE HP sang Frequency Hz Sound Examiner SE 400 Series Relative dB i Relative dB 94 Index BK4936 microphone with windscreen back facing Tolerance IEC 61672 class 1 Directional frequency response positioned back side toward noise source 09 309 incidence angles 5 Frequency Hz een frequency response positioned back side toward noise source 0 90 incidence angles 00000 Frequency Hz Sound Examiner SE 400 Series 95 Index cidence angles 0 in 5 9 1 toward noise source 0 de uency response positioned back si Directional freq pet HH TEILE E BEDHREESERERERHIDEEDEDERA peers A Ga ee ASE EA Te E HENA Hal ES a RUAA gp aaney Frequency Hz onse positioned back side toward noise source incidence angles 0 180 sp re y quenc Directional fre HP agera Frequency Hz Sound Examiner SE 400 Series 96 Index BK4936 microphone with windscreen side facing Tolerance IEC 61672 class 1 Directional frequency response positioned side toward noise source 09 309 incidence angles 5 100
29. cy weighting settings nennen 8 Opening the setup screen for instrument configuration cccececesesesesseesssssssssssseesssssssssesssesssesesesesesssesssesssesssssesssssssssesssssesessesseseseeseseeeeeeeeteren 9 A CR TEM CE IT 10 SEM1O0 SOMES IMORMAUOM ooo 11 Time and date SE TING e N 12 SE CURIEY MOCKING ANG unlocking TUN SGUD essa 14 dahin a 15 Deleting files and viewing MEMON in tanec tad ceca a cecal tad aoa tan acca a acl a eel a aca anes 15 Resetting the SE 400 Sere cite Eodem EN No etu EN VON Mr EN nn ttu EN UON Mrz EN nme NN icon 15 Calibrate measure run and saved results nione ki add 16 Overview or running O adidas 16 Sound Examiner SE 400 Series V Table of Contents aN ACG mee 16 Pertoming a leo da 16 DG SUE a secs adc acc dc aaa dal dee leer leaned 19 Logged NAS 19 WIS CLC OM pred 19 POST OMMMMG ANG TMOG MT OUI MEUM ici 20 Measurements and displayed Paranoia oi 20 FRU SOD AVI A blu M RP bes D cian Sul euis Qe Eben gb uber RR Abos ERU sasha anatase bases tanpesielbatedes Bamnaavaemaeaceee 21 Download and eer L 22 DNS downloaded measurements oiseau NAAA A NER 23 SoundPattol featife 5 oon A o Nds DEED E Ml DNE LC M ON E EU 25 Connecting the printer and settligs id des 25 Pinno acd FONTS crore a pui pO E pa ud pan Gu QD nap a van RUD nU sub CVM vt dido uu capu Dd e va MEER VU A Un RR 27 Microphone prea Mps aoc pedet Ecol eed ti E Dnm Cai a a POS EUR eeu 28 AUNT
30. d 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 Sound Examiner SE 400 Series 40 Data Addendum Data Addendum SE 400 Series measuring to IEC 61672 1 About this data addendum This data addendum presents submission information for testing the 3M Sound Examiner SE 400 Series sound level meter to the IEC61672 1 standard The SE 400 Series is a data logging sound level meter Note The nominal microphone sensitivity is 28 dB Linear operating range sections 5 5 10 5 5 11 9 2 7e 9 3e 9 3f The starting level for measuring level linearity is 114 dB at all frequencies Calibration point is 114 dB at 400 mV 1 kHz Type Class 1 and Type Class 2 Equivalent input voltage 0 400 VRMS 12 pF Linear operating range with SPL A Weighting and LEQ A Weighting sections 5 5 10 5 5 11 9 2 7e 9 3e 9 3f Note Reference level 114 dB Cal Point 400mVrms 114 dB 1 kHz SPL A Weighting LEQ A Weighting Linear Operating Range dB Linear Operating Range dB mo 8 75 10 M0 o 5 83 3 M0 M0 5 339 tO uo 5 3 M0 wo 0 2 10 Linear operating range with SPL C Weighting and LEQ C Weighting sections 5 5 10 5 5 11 9 2 7e 9 3e 9 3f Note Reference level 114 dB Cal Point 400mVrms 114 dB 1 k
31. dB Mec Message appears if secure Setup Disabled stop is pressed during LASmn 71 2 dB secure run LApk 98 9 dB LASeq 88 2 dB In Secure Run Mode gt FS cz 24 OCT 2011 11 14 Figure 3 9 Secure run and measurement screen Sound Examiner SE 400 Series 15 Memory and space Deleting files and viewing memory Memory and space Deleting files and viewing memory In the Memory screen you have the option of deleting all sessions from the memory It also displays the number of sessions in memory used space and the remaining memory space called free space gt Viewing memory and or deleting files 1 From the setup screen select Memory by pressing e keys 2 Delete all sessions will be shaded Press e key and a Confirm pop up screen will appear 3 Press Q key to select Yes and press e key to delete files e To cancel either press e key when No is shaded or press D key 4 To exit the screen press D key This will return to the previous screen To return to a measurement main screen press key a second time Delete all sessions SETUP FILE SYSTEM IDELETE ALL SESSIONS Sessions 2 1167 KB 677 KB Figure 3 10 Deleting sessions files and viewing memory Resetting the SE 400 Series At times you may need to reset the instrument if it is unresponsive during run or stop modes 1 To reset press and hold D key for about 8 10 seconds and the instrument will power o
32. dence corrections with BK4936 microphone RICR windscreen and remote preamp section 5 2 7 Note added to the pressure response to calculate random incidence response BK4936 microphone RICR windscreen amp remote preamp Random Incidence Frequency Corrections co 8000 10000 16000 Sound Examiner SE 400 Series 72 Data Addendum Pressure to random incidence corrections with BK4936 microphone amp remote preamp section 5 2 7 Note added to the pressure response to calculate random incidence response BK4936 microphone amp remote preamp Random Incidence Frequency Corrections in Hz in dB 0 4 0 1 0 1 0 1 0 2 0 1 0 2 0 1 co 0 3 0 4 ae AAA em 0 0 00 O 900 10000 2 2 2 6 16000 3 6 Sound Examiner SE 400 Series 73 Data Addendum Pressure to random incidence corrections with BK4936 microphone remote preamp and windscreen section 5 2 7 Note added to the pressure response to calculate random incidence response BK4936 microphone remote preamp amp windscreen Random Incidence Frequency Corrections co 8000 10000 16000 Sound Examiner SE 400 Series 74 Data Addendum Pressure to random incidence corrections with BK4936 microphone remote preamp and RICR section 5 2 7 Note added to the pressure response to calculate random incidence response BK4936 microphone remote preamp amp RICR Random Incidence Frequency Corrections in Hz in dB co
33. e Incidence Random in Hz Angle Angle Angle Angle Angle Angle Angle Field 1000 0 2 0 1 0 0 0 0 0 0 0 0 0 2 0 0 1250 0 3 0 1 0 1 0 1 0 1 0 0 0 5 0 1 1600 0 1 0 0 0 1 0 1 0 1 0 1 0 0 0 1 2000 0 3 0 2 0 2 0 0 0 0 0 0 0 1 0 1 2500 0 1 0 1 0 2 0 2 0 2 0 1 0 0 0 2 3150 0 1 0 2 0 3 0 3 0 3 0 2 0 2 0 3 4000 0 5 0 2 0 4 0 5 0 5 0 4 0 6 0 5 5000 1 1 0 0 0 2 0 3 0 4 0 4 0 7 0 3 6300 1 1 0 0 0 1 0 0 0 1 0 2 0 5 0 1 8000 1 8 0 1 0 2 0 3 0 6 0 5 0 0 0 1 10000 3 1 0 3 0 0 0 1 0 7 1 2 0 8 0 1 12500 6 1 0 4 0 9 0 7 1 6 0 8 0 1 0 4 16000 8 2 1 0 0 9 1 1 1 8 2 0 1 0 0 9 Sound level meter type sections 5 1 4 5 1 7 7 3 9 2 1 a and 9 2 5b Class 1 when using the BK4936 microphone Class 2 when using the QE7052 microphone Group X Model SE 400 Series This is applicable with all accessory configurations The configuration for normal mode of operation with the SE 400 Series is operating the instrument without the remote cable and windscreen To conform to the specifications for directional response and frequency weightings the instrument is mounted in a free field facility using strings General Information section 9 3 The reference sound pressure level is 114 dB The one range is the reference range The microphone reference point is the center of the microphone face Sound Examiner SE 400 Series 81 Data Addendum Environmental effects section 6 1 2 and 9 3L The typical time intervals needed t
34. ea 1016 the eie ER 28 COME CEG FAI extensiof GSb e o outil tbc atc ees OE uU ME C MUI M MU M UA 28 Standards DIO GUI GS issoria enera esnia nran aaa iaa aa aiae Erai aeaea aE aaa iai ENE 30 Acoustical Characteris tiG Snn rte fos opa E E ep a E Dada De Rb capt E E 30 MIONO RE mr 30 Lic cem T 31 Gr oce ette rU P ETT 31 Mechanical Characteristics rei on a pK ani eh up IR RE UR rr REA CEDE IDAR B E UE I PO DO TIER I ADDERE S RATING ME 31 ke IBearIcieiiis pti C E 31 Environmental Characteristics iS ostro es E mee DU d RR RT D ce rr aun 31 user internace Chafacteristl65 oit capire neo rl vd d o tle rU d On eim x di Rr ER EXE qr RE rix ER NH UR d e Rt 32 PowerlElectrical Character oa 32 des rs a AAA m 32 SE 400 Series Models dnd Partnumbers acidosis 33 ACCessonmes Sold Separa le shenon E 33 Glossary OF Tessa 34 Customer IK d 39 Contactino Instd rmernte tof essor n n et tn o tn e t E days acid 39 Memationalc Usome Seia t o NE ductus E cu caduti 39 Sound Examiner SE 400 Series vi Table of Contents Calibrator ec M 39 WV AR ANNOY casos T v 39 Data Addendum SE 400 Series measuring to IEC 61672 1 eese nenne nenne tete tn tete tete tenete tette tnnt tentent tennis 40 Figures Figure 41 15 9400 Screen COMPONEN O 2 Figure
35. econd logging rate will measure log and save in 30 second increments The selectable parameters include 5 seconds 15 seconds 30 seconds 60 seconds 5 minutes 15 minutes 30 minutes Exchange and 60 minutes l Rate he exchange rate is also known as the Doubling Rate and refers to how the sound energy is averaged over time The optional exchange rate settings are 3 4 or 5 dB Refer to Figure 3 4 or more information he peak weighting parameters are selectable as A C or Z weighting gt Note peak weighting may be different than SPL weighting Please refer to the Glossary for more information he language setting has eight different selections including English French Spanish Italian Portuguese German Chinese Simplified Korean he contrast setting is used to increase or decrease the darkness lightness of the display Contrast settings include 1to 10 settings in which 10 equates to the darkest display setting and 1 equates to the lightest display setting Table 3 1 Meter settings explained SE 400 Series information details In the Unit Information screen the instrument model serial number the hardware software and secondary software revision numbers are identified Note for information on models features please refer to Table 1 1 gt Unit Information screen 1 From the setup screen select Unit Info by pressing the BD keys and press 99 key O m 00 00 00 SETUP UNIT INFO SE 400 Sound Examiner Instrume
36. ed ABS Polycarbonate with light grey front and dark grey backing Standard photographic mount on backside accepts 74 20 screw threads IP65 Minimum 2 meter onto concrete 2 times on each face Microphone damage acceptable no other loss of function data or power Environmental Characteristics Operating Temperature per IEC61672 Humidity Storage Temperature 10 C to 50 C 14 F to 122 F 0 to 9096 RH non condensing 20 C to 60 C 4 F to 140 F Battery Charge Temperature 0 C to 40 C 32 F to 104 F Atmospheric Pressure Operating 80 to 110 kPa Storage 50 to 150 kPa Sound Examiner SE 400 Series 32 Appendix A User Interface Characteristics Logged data Summary data Logged rates Display languages User Interface Keypad type Display Backlight Stored logged data includes Lmax Luin Lex Leg Use 3M Detection Management Software DMS to interpret data files Stored session summary data includes Lmax Luin Lex Leg Le Level exposure and user settings Use 3M Detection Management Software DMS to interpret data files 5 15 30 60 seconds and 5 15 30 60 minutes English Spanish German French Italian Portuguese Simplified Chinese Korean and Czech 12 Keypad Keys Run Stop On Off Esc Enter Backlight 4 arrowed keys up down right left 4 Softkeys Elastomeric Transflective 128 x 128 pixel resolution with LED backlighting Display update rate 1 x second D
37. er the level measurement exceeds the range of the instrument UR UnderRange indicator appears whenever a level measurement is below the range of the instrument Run indicator appears when a session is running measuring integrating measurements Stop indicator appears when the current session is stopped OL 00 00 00 Run Time displays the current elapsed logged session run time in hours minutes and seconds IET Battery charge status blinks when the battery is low and needs charging The battery icon shows the status level of the internal battery A full battery indicates the SE 400 Series is fully charged where as a non shaded battery icon indicates the battery power is low When charging the battery icon will appear as a scrolling shaded battery charge icon Table 2 2 Screen indicators Sound Examiner SE 400 Series 6 Measurement Start screen Measurement screen views Measurement Start screen When powering on the measurement screen displays six measurements which include SPL Max Min Peak Leq and Lae sound exposure level The sound pressure level SPL measurement is continuously updated while the remaining measurements are updated during a log session The sound exposure level is displayed as a summary value Please see Measurements Chapter 4 for more details Measurement screen views There are two different measurement views e Amulti measurement screen displays 5 measurements Press Y E gt arrow to scroll
38. etectionmail 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 Sound Examiner and 3M field calibrator devices should be examined regularly by the factory An annual calibration is recommended Please see Service Department above Warranty 3M warrants our instruments to be free from defects in materials and workmanship for one year under normal conditions of use and service For United States customers we will replace or repair our option defective instruments at no charge excluding batteries abuse misuse alterations physical damage or instruments previously repaired by other than 3M Microphones sensors printers and chart recorders may have shorter or longer warranty periods This warranty states our total obligation in place of any other warranties expressed or implied Our warranty does not include any liability or obligation directly resulting from any defective instrument or product or any associated damages injuries or property loss including loss of use or measurement data For warranty outside the United States a minimum of one year warranty applies subject to the same limitation and exceptions as above with service provide
39. eter settings Meter settings The Meter Settings screen is used to select general instrument parameters including the log interval exchange rate language contrast and peak weighting Table 3 1 outlines the meter general settings on the SE 400 Series Setting up meter parameters 1 From the setup screen press CAS keys to select Settings and press e key D Ww 000000 UNIT INFORMATION Settings selected CALIBRATION MEMORY TIME DATE COMMUNICATIONS SECURITY AUTO RUN PRINT SETUP Figure 3 3 Choosing meter settings 2 To select one of the meter settings press e O keys Once selected press e key e This moves the selection to the changeable value field 3 To change the log rate exchange rate peak weighting language and or contrast press en O keys Press e key to save the selection Repeat as necessary or escape to abort a 00 22 49 Shading denotes the setting parameter is ASETUPISETTINGS selected e g Log interval Log Interval Exchange Rate 3 Exchange Rate setting 3 4 or 5 dB Peak Weighting A Language English Contrast Figure 3 4 Choosing meter settings Sound Examiner SE 400 Series 11 Setup instrument configuration SE 400 Series information details 4 Once the settings are selected press Dey to return to a measurement screen Meter settings Explanations Log Interva he logging interval is the logging rate between the logging events For example 30 s
40. eypad keys identified cocina ba 2 Table De SOME BXDIaITIBC caca 5 Table 3 1 IMGIEL Me c dello Me LE 11 Sound Examiner SE 400 Series CHAPTER 1 Introduction Models and options 4 Introduction The 3M Sound Examiner SE 400 Series are sound level meters used to measure noise over time with robust logging capabilities selective measurement values and with a variety of end user applications including occupational noise measurements and assessment of environmental noise levels Models and options There are five models offered in the Sound Examiner Series including intrinsically safe IS and non intrinsically safe models The differences between models are accounted for by three primary characteristics intrinsic safety accuracy of measurement and remote microphone measurement capability The table below summarizes the differences between the models Intrinsically safe Class Type 1 Class Type 2 SoundPatrol add on option USB connectivity Removable Preamp External outputs AC DC Serial printing Remote capability with removable Sound Examiner Models Series L pL a ff i d Table 1 1 Sound Examiner SE 400 IS and non IS models explaine Sound Examiner SE 400 Series overview Display and keypad The keypad is used to run and stop your sessions view your measurement values select specific set up parameters and power on and off the sound level meter Sound Examiner SE 400 Series 2 The following diagra
41. f the hazardous locations Avertissement Afin de pr venir l inflammation d atmosph res dangereuses ne changer les batteries que dans des emplacements d sign s non dangereux Safety Standards e CE mark osx SE 401 IS model and SE 402 IS model e UL 913 Ed 7 2011 09 23 Standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class Il IIl Division 1 Hazardous Classified Locations CSA C22 2 No 157 92 R2013 Intrinsically Safe and Non Incendive Equipment for Use in Hazardous Locations EN 60079 0 2009 Explosive atmospheres Equipment General requirements EN 60079 11 2012 Explosive atmospheres Part 11 Equipment protection by intrinsic safety EN 60079 26 2007 Explosive atmospheres Part 26 Equipment with equipment protection level EPL Ga IEC 60079 0 Ed 5 2007 Explosive atmospheres Part 0 Equipment General requirements IEC 60079 11 Ed 6 2012 Explosive atmospheres Part 11 Equipment protection by intrinsic safety e IEC 60079 26 Ed 2 2009 Explosive atmospheres Part 26 Equipment with equipment protection level EPL Ga Safety Markings Manufacturer 3M Company Equipment model SE 401 Intrinsically Safe Class1 Type 1 model SE 402 Intrinsically Safe Class 2 Type 2 model Hazardous Locations Class El 1G ExiallB T4 DEMKO 13 ATEX 1210031X Ambient temperature range 20 C to 50 C Certificate number IECEx UL 13 0006X Class Division 1 Groups C and D Exi is defined as I
42. ff Sound Examiner SE 400 Series 16 Calibrate measure run and saved results Overview of running a session CHAPTER Calibrate measure run and saved results This chapter provides you with the tools used to perform a field test and review the data results It also details how to work with the SoundPatrol feature and a brief overview of DMS setup downloading and viewing data in charts and graphs Overview of running a session The list below is a brief overview of the steps for running a sound level session Operation Field Testing Turn on the Sound Examiner a LAS the current Sound Pressure Level is displayed b Clear memory if needed by using the memory menu from the setup screen Adjust your settings to fit the specifications for your session if applicable Calibrate the SE 400 Series Position the instrument in the field at a 0 degree angle towards the noise source Connect appropriate external devices if applicable Forintegrated time history measurements press the Run Stop key to start the session Press Run Stop key to stop the session Review your measurement results on the Sound Examiner display or review the data in Detection Manaaement Software DMS Calibrate It is recommended to calibrate your Sound Examiner SE 400 Series before and after a run to ensure highly accurate measurement results The SE 400 microphone is sensitive to humidity and pressure changes Calibrating the instrument
43. hazardous location The SE 400 Series IS models are intended to measure sound pressure levels in air and may measure in certain hazardous locations as identified by the User Warnings Safety Markings and Standard information page iii part number 053 777 Consult your company s safety professional for local standards or call 3M at 1 800 243 4630 i Dangers Warnings Cautions amp Battery non IS models 3M Sound Examiner SE 400 non IS Models Sound Level Meter Dangers Warnings Cautions amp Battery A Failure to observe the following procedures may result in serious personal injury e Notforuse in explosive or hazardous locations This product is not intrinsically safe e Contains built in lithium polymer battery Do not incinerate or dispose of in fire Do not disassemble alter or re construct Failure to observe the following procedures could damage the instrument E e Read the manual before operation Ses e Do not store in temperatures outside 20 C to 60 C 13 F 140 F uU e X Donotimmerse in liquids e Condensation may damage your instrument e Substitution of components may impair the accuracy of the instrument Repair should be performed by authorized service personnel only General e The battery in this instrument has limited shelf life even if never used e A non condensing environment is required for proper measurements e X Donotcharge battery outside the range of 0 C to 40 C 32 F to 104 F e Batte
44. ies 53 Data Addendum Nominal BK4936 microphone frequency response diffraction and reflection with remote preamp RICR amp windscreen corrections Section 5 2 8 Note Add correction to electrical frequency response Nominal Frequency Hz Nominal corrections in dB w mm o PI Frequency Hz Nominal corrections in dB Ooo o oao 0B ooo Oo o m9 ee O 398 ee oo A 00 4217 1 0 4467 1 0 4732 1 2 5012 1 5 5309 1 7 5623 1 3 5957 1 4 100 6310 6683 2 1 194 8414 3 2 8913 3 8 9441 3 2 10000 3 9 10593 o s sa 15849 Sound Examiner SE 400 Series 54 Data Addendum Nominal QE7052 microphone frequency response diffraction and reflection corrections section 5 2 8 Note Add correction to electrical frequency response Nominal Frequency Hz Nominal corrections in dB Sound Examiner SE 400 Series 55 Data Addendum Nominal QE7052 microphone frequency response diffraction and reflection corrections with windscreen section 5 2 8 Note Add correction to electrical frequency response Nominal Frequency Hz Nominal corrections in dB Sound Examiner SE 400 Series 56 Data Addendum Pressure to free field corrections with BK4936 microphone sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Cor ctions n dB
45. isplay resolution 0 1 dB Modes include low intensity high intensity and off SE 400 Non IS models Modes include dim bright and off SE 400 IS models Power Electrical Characteristics Battery for SE 401 and SE 402 Non IS models Battery for SE 401 and SE 402 IS models Battery Life Battery Charge Internal memory Communications External DC Power Input Standard microphones Preamplifier Remote Cable Lithium Polymer 2500 mAHr rechargeable Run Time 18 hours minimum excluding the backlight Lithium Polymer Pack Nominal 3 7V 1500 mAH rechargeable 3M manufactured p n 073 709 Run Time 8 hours minimum excluding backlight 3 years or 500 cycles service replaceable USB cable is provided with instrument Battery charge time 8 hours approximately for non IS models 2MB 34 days at 1 minute logging USB Interface High power USB port 500mA or external USB charger e Class Type 1 Precision BK4936 microphone e Class Type 2 General QE7052 microphone Removable preamp directly accepts 7 13 2 mm microphone Up to 15 meters 50 feet of cable with negligible signal loss Ports and connections ACIDC Output I O connector USB 3 5 mm stereo tip AC center ring ring Gnd RS 232 Conforms to USB 2 0 mini USB connector Sound Examiner SE 400 Series 33 Appendix A SE 400 Series models and part numbers sb SoundExaminer SE 400 Kit Description O eee ee Examiner SE 402 non IS Includes meter
46. ith advanced charting tables and reporting capability The information is stored in customizable bar charts and or tables with measurements parameters displayed on the top navigational bar gt Viewing data in DMS 2 DMS Welcome page and instrument communication A Click on M Download button see A below 1 SE 400 Series and communicating with DMS A Tum On EY SE 400 Series B Plug in USB cable from SE 400 Series to the computer 3 SE 400 Series and Downloading 4 Viewing your data A Select the SLM family and the Sound Examiner from the A In the Data Finder page you can view the parameters in Instrument window this page To further analyze and or print either double B Click li ess button See A Ss on a session study or select Analyze OF gt Quick Report uttons e Note the downloaded files are listed by file name size and See A to view an example of logged data and table data date under the instrument download section See B Figure 4 14 Downloading files from DMS to SE 400 Series Sound Examiner SE 400 Series 25 SoundPatrol feature non IS models only Connecting the printer and settings SoundPatrol feature non IS models only In some applications the SoundPatrol feature is used for noise enforcement assessment with the capability to print to a cabled hand held portable printer If purchased the feature operates by pressing the print icon from one of the measurement or ca
47. le external power cord with USB indscreen calibrator adapter carry case and user manual 70 0716 0793 4 3M Sound Examiner SE 401 Intrinsically Safe model Includes meter with Class Type 1 Microphone USB cable external power cord with USB indscreen calibrator adapter carry case and user manual Accessories sold separately 70 0715 8115 4 056 990 Calibrator Adapter for 0 50 or 1 3 cm diameter microphone for QC 10 20 or AcoustiCal AC 300 adapter one included 70 0716 0829 6 Lo i 3M AcoustiCal Calibrator for Class Type 1 Microphones 114 dB at 250 Hz and 1000 Hz 70 0715 7972 9 iE IE 0 Sound Calibrator for Class Type 2 Microphones with single output 114 dB at 1000 Hz 059 045 Tripod approximately 46 or 117 cm 2 feet 61 cm 70 0715 8234 3 053 711 Carrying case one included 70 0715 8135 2 059 344 WS 7 indscreen one included 70 0715 7994 3 N A hermal printer type FTP628 rechargeable Li ion battery 1850 mAh with belt clip AC adapter charger printer cable and a roll of hermal paper SPDP Printer 70 0716 2098 6 057 342 Fujitsu Cable for SoundPatrol SE 400 thermal portable printer E 053 764 Assembly 3 5 mm patch cable 70 0715 8344 0 057 258 hermal paper Five roll pack for use with the SPDP Printer 70 0716 0821 3 L HA pm Detection Management Software DMS one included 70 0715 8290 5 056 317 QE7052 Free field Class Type 2 Microphone standard low cost 77 diameter 52 70 0715 8300 2 059
48. libration screens Connecting the printer and settings The portable thermal printer and the SP Fuji cable 057 341 is used to communicate between the SE 400 Series and the portable thermal printer Before using the printer for the first time set the dip switches located on EM next to RS232C port 32 ort using the setti the Se P ea listed below Interface Function aoe Switch Setting wireless On Ponte ee gd interface H Lgemmunieation mode E 0 0 On NR The Baud Rate settings may be changed to 4800 9600 19200 115200 via the setup screen Please follow below to connect the printer and view change the baud rate setting Connecting the printer and adjusting viewing the baud rate for the SoundPatrol feature 1 Connect the SP Fuji cable 057 341 by inserting it into the serial port on the bottom of the SE 400 non IS models 2 Turn on the portable printer by depressing and holding the power button for about 1 second A green LED blinks when the printer is ready Note refer to the portable thermal printer manual to power on with either AC DC power adapter or insert Li ion battery 3 Toset view the baud rate open the Communications screen by pressing em key from the setup screen Skip steps 3 5 if not applicable 4 Press S key to move to the editable field and press e O keys to select a setting 9 Press e key to save the changes Press D key to return to the setup screen Pre
49. m for SE 400 series explains the features on the keypad and the display s screen Sound Examiner SE 400 Series overview Diagram and functionality Diagram and functionality indicators 1 Softkeys 2 Backlight key 3 Up Arrow key 3M 4 Left Arrow key 5 Run Stop key 6 Right Arrow key T Enter key 1 ooooo0 8 Down Arrow key Qa S r p o8 6 9 OnlOff Esc key 3 7 4 e There are four softkeys which are used as additional menu options when working with specific screens e g measurement screen Used to illuminate the background of the display screen i e low lighting environment nighttime session Used to toggle through menu setup options and scrolls through the values on the measurement Screen Used to navigate through menus and setup parameters Used to run and stop a logged session Used to navigate through menus and setup parameters Used to select menus and confirm setup parameter changes Used to toggle through menu setup options and scrolls through the values on the measurement Screen Used to power on power off and or escape or move back one screen Table 1 2 Keypad keys identified Screen components identified The SE 400 Series has four screen components identified below Screen indicators Main screen LASmx LASmn Time amp Date error messages LApk Softkey menus Figure 1 1 SE 400 Series Screen A Settings B Fast Slow Time Response C A C or Z Frequency
50. ment screen press the corresponding softkey for the 2 9 menu 5 Press the Cal softkey or select Calibration kD m SETUP UNIT INFORMATION SETTINGS CALIBRATION MEMORY Calibration TIME DATE COMMUNICATIONS SECURITY CAL softkey ALITC RUN Press corresponding softkey Figure 4 2 Calibration softkey selection Sound Examiner SE 400 Series 18 Calibrate Performing a Calibration 6 In the calibration screen either press the CAL softkey or press the ES key Note the calibration screen details the last calibration and is saved into the memory of the instrument If you download your data to DMS software the calibration history is saved to the session and is viewable printable in the software 00 24 23 ASETUPICALIBRATION I7 Opening CAL screen to perform calibration CALIBRATE Either press the E ey or press the Cal softkey LAST CALIBRATION 114 0 dB 15 58 16 22 Figure 4 3 Calibration screen 7 Inthe calibration screen press the corresponding ANY softkeys or press e to adjust to the specific dB level noted on the calibrator Calibrating Match the dB level from the calibrator to the SE 400 Series by pressing either the corresponding softkeys or the up down arrow keys Figure 4 4 CAL screen 8 Press the e key to save the changes or escape to abort 9 Press the D key twice to return to the main measurement screen Sound Examiner SE 400 Series 19 Measure Logged Data Measure
51. miner SE 400 Series 23 Download and view logged data Viewing past sessions 9 When selected the session summary screen appears as indicated in Figure 4 12 Note toreturn to the previous screen press the SD key a Session SQ70A SES Date DA FEB 13 Session name Date of run and overall Runtime Runtime 00 10 38 LCSmx 123 5 dB LCSmn 122 8 dB LApk 1286 2 dB LCSeq 123 2 dB LCE 143 3 dB 04 FEB 2013 09 14 Summary data Sound Examiner has the ability to print when connected to a printer Figure 4 12 Reviewing Session Data Download and view logged data If you will be using DMS to view your data or measurements this section will guide you through communicating between the Sound Examiner SE 400 Series and DMS which will enable you to view time history data in logged data charts and tables with reporting and storage capabilities as displayed below Note please reference the online DMS help for more information Acoustical testing San Antonio TX Session Report 9 25 2012 Summary Data Panel Date Time TET EEE ELE UELLE EE LEN ULL HL EAEE min Llin min 14 00 17 October 2011 Figure 4 13 Sample Sound Examiner data report Sound Examiner SE 400 Series 24 Download and view logged data DMS amp downloaded measurements DMS amp downloaded measurements When you download the data via the the instrument download panel the data is stored and viewable via the data finder page w
52. ms DC Output Weighting A C or Z as set by user Range of Signal 0 to 3 3Vdc 1mV 0 1dB i e 450mV 45 0dB Under range OVdc Overload gt 2 0Vdc Output Impedance 1K Ohm Recommended load impedance gt 20K Sound Examiner SE 400 Series 80 Data Addendum Cable and radio frequency emission sections 5 18 1 5 18 2 9 3n The charging cable is a shielded 1 meter long USB cable Battery voltage range and power supply sections 5 20 2 5 20 3 9 3j The charging circuit stops charging when the battery voltage reaches its maximum of 4 1 Volts DC The unit shuts down when the minimum battery voltage of 3 4 volts DC is reached The instrument may be operated with a USB power cable Electrostatic discharges section 6 5 2 9 2 7 b Exposure to electrostatic discharges will not change operating state change of configuration or corruption or loss of stored data AC power and radio frequency sections 6 6 1 6 6 3 6 6 4 9 2 7c 9 30 No effect was observed in any orientation or configuration of the SE 400 SERIES within a 60 Hz 80 A m magnetic field During radio frequency immunity testing a 3 meter USB cable was connected between the SE 400 Series and a computer USB port The SE 400 Series was set to display SPL Directional windscreen corrections section 7 2 Note in dB re 20 uPA 0 Degree 30 Degree 60 Degree 90 Degree 120 Degree 150 Degree 180 Degree Frequency Incidence Incidence Incidence Incidence Incidence Incidenc
53. nd the connected hand held printer will print the report At any time press EB icon to end the printing The handheld printer will stop the 1 second report The summary data report displays the time response and the summary data parameters including the maximum sound pressure level SPL the average SPL Leq the minimum SPL the runtime date time location and a by field for an optional signature These parameters may be changed via the print setup menu See Print setup section above Note this report will print after the 1 second continuous data report has finished printing or is stopped e To print the summary data report press Dio on the SE 400 while the printer is connected Press the softkey Press e on the SE 400 and the summary data repon n will appear after the 1 second continuous report The calibration report displays the time response setting the calibration date and time the previous SPL noted as old the reference level value and the new calibrated level e To print the calibration report press the softkey from the calibration screen while connected to the printer To access from a measurement screen press the icon and then press the CAL softkey Sound Examiner SE 400 Series 28 Microphone preamp Attaching the preamp Microphone preamp The removable preamplifier model SE 402R non IS when equipped can be used for remote distance monitoring An extension cable is connected between the
54. ning the microphone directly at the noise source To perform stationary sound level measurements a tripod may be used by connecting the SE 400 Series to the tripod mount while positioning it at a O degree incidence angle Figure 4 7 Measurement positioning and tripod mount Measurements and displayed parameters The measurements and labels which appear on the display will change based on the selected frequency weighting and response time For example A weighting and Slow Response will display the following labels LASmx LASmn LASeq and Lae The frequency weighting and response time are customizable within DMS software The selectable measurements are explained below Please see Glossary of Terms in Appendix B for more information Measurement Explanations Parameters SPL Las Sound pressure level is the basic measurement of noise loudness expressed in decibels SPL measured with A weighting and slow time response is displayed as LAS or SPL LASwx Maximum sound pressure level with A weighting and slow response Displayed when in run or stop modes Lex Peak sound pressure level with A weighting Displayed when in run or stop modes Average sound pressure level with 3 4 or 5 dB exchange rate Displayed when in run or stop modes LASuw Minimum SPL with C weighting and slow response Displayed when in run or stop modes Lae Sound Exposure Level SEL or Level Exposure LE The sound exposure level average
55. nt and model identified Serial BIF0800010 HW Rev 0 SW Rev B O1F PIC Rev B 10A Figure 3 5 Unit Information screen Sound Examiner SE 400 Series 12 oetup instrument configuration Time and date setting Time and date setting The Time Date is used to set up the current time and date parameters These settings are used in many of the charts and graphs in the software and when viewing calibration history and or time history measurements on the instrument Setting the Time and Date parameters 1 From the setup screen select Time Date by pressing the e c keys and press amp key 2 To change the Time or Date fields press the YY O key to select and press E key 3 Press Y Q9 arrows to change the values To move to the next field press Q gt arrows m Press key to save or escape to abort e Repeat steps 2 through 4 to change Time and or Date C1 lo exit the screen press D key This will return to the previous screen To return to the start screen press E9 key a second time gt m 00 00 00 SETUP TIME DATE Time and Date fields TIME 10 05 11 Pa DATE 27 JUL 2011 Day field It will automatically display based on DAY Wednesday the date field Figure 3 6 Time and Date Setup screen Sound Examiner SE 400 Series 13 Setup instrument configuration Auto Run and setting timed run Auto Run and setting timed run With a Timed Run mode you program the instrument s
56. ntrinsically Safe and S cruit Intrins que Maximum charge input voltage Um 5 5V Maximum input current li 500ma 3M Authorized Service e Contact 3M 1060 Corporate Center Drive Oconomowoc WI 53066 Contact 1 800 245 0779 or email 3Mdetectionmail mmm com or Internet www 3m com detection See User Manual for additional details Part number 053 777 RevB 11 13 iv Table of Contents TABLE OF CONTENTS o aa aaa eaaa aa aaraa aaaea a a a 1 Modele and ONIONS Sna e e CO OO Eh EDU M bM 1 Sound Examiner SE 400 Series OVerVIBW sa 1 Display and eco m N 1 Diagram ma Uncle taf pnt duets 2 Screen components Ide D TIGO sad 2 CODnectorsiPOolts Justa dun e tci catur CDL DE LU MGE UMEN IMMO D 3 e M 3 3MT Detection Management Software DMS essere rr 3 Getting Stred accuse hve vane vd wv va vem 4 Checking me CEN EU IN PEO RACE UU cc sete edu n ean o E E E O Ud UND tI I UE Ded ena Md DM 4 TUMING Oils ai aoo da teh os 5 OTS YS cr cR NUMEN EM CH E M NE MEM ME MEM E MEME MEME 5 A 5 Measurement Start SCIGen oio nois repa tas 6 ENT EE Ni AE PAPE MEE 6 TUNING REESE a T E 6 AR OUING ices E 7 Charging Slalest cesses dico o aes iconic a dent iex n 7 Setup instrument confiqurationi io tesi doin onera eren di 8 Response time and frequen
57. o stabilize after changes in environmental conditions include For temperature change of 10 C 18 F allow at least 5 minutes For relative humidity change of 3096 non condensing allow at least 30 minutes For static pressure change of 10 kPa allow at least 5 seconds Microphones The Microphones section includes the Class Type 2 General QE7052 microphone with accessories and the Class Type 1 Precision BK4936 microphone with accessories The listing below details the sections for the directional frequency response of the microphones with the units side or back facing towards the sound source QE7052 microphone side facing QE7052 microphone back facing QE7052 microphone with windscreen side facing QE7052 microphone with windscreen back facing BK4936 microphone side facing BK4936 microphone back facing BK4936 microphone with windscreen back facing BK4936 microphone with windscreen side facing BK4936 microphone using remote preamp BK4936 microphone using windscreen amp remote preamp BK4936 microphone with random incidence corrector ring RICR side facing BK4936 microphone with RICR back facing BK4936 microphone with RICR and windscreen side facing BK4936 microphone with RICR and windscreen back facing BK4936 microphone with remote preamp and RICR BK4936 microphone with remote preamp RICR and windscreen Sound Examiner SE 400 Series 82 Index QE7052 microphone back facing Tolerance IEC 61672 class 2 Directional f
58. o view different measurement parameters press the YD Q arrow keys Single Measurement screen Figure 4 9 Single measurement screen in stop mode Sound Examiner SE 400 Series 22 Measure Viewing past sessions Viewing past sessions The SE 400 will automatically save and store all of the run stops performed on the instrument which is also known as session data You may view past sessions using the Memory menu from the Setup screen Once selected it will display summary data such as LASmx LASmn LZpk LASeq LAE session name date and run time The steps below explain how to review the session data 1 From the measurement screen press the 2 softkey 2 From the setup screen press GP O keys to select Memory and press e key 3 With Session Directory selected indicated by the black shaded bar press e key Select to view summary data from past SESSION DIRECTORY runs sessions DELETE ALL SESSIONS Sessions 210 Used Space 903 KB Free Space 940 KB Figure 4 10 Session directory screen 4 Press GD O arrow keys to select a specific session and press e key to view data gt Note the SE 400 series runs are stored as SO000xx ses and will display with the most recent at the top of the page Press enter key to view the summary data S000021 3ES S000020 SES S000019 SES S000018 SES S000017 SES 3000016 SES 5000015 5ES 5000014 5ES 20 SEP 2012 09 14 Figure 4 11 Saved sessions Sound Exa
59. onal frequency response positioned facing toward noise source 09 1809 incidence angles 5 St zm mi a mE E ra Fari aul crm i ra O mi Frequency Hz Sound Examiner SE 400 Series Relative dB 90 Index BK4936 microphone side facing Tolerance IEC 61672 class 1 A m I ji pem T Frequency Hz Directional frequency response positioned with side toward noise source 09 90 incidence angles 5 Frequency Hz Sound Examiner SE 400 Series Relative dB Relative dB 91 Index Directional frequency response positioned using side toward noise source 09 150 incidence angles 10 Dp UE M La CAU HE F P Sob VERE oar rr nr ror org or rr ruere a or rrr A n 44 PTE E Ll LL HL LB LLL E LL S Lii LLLA ii iE EE Frequency Hz Directional frequency response positioned using side toward noise source 09 180 incidence angles 5 Frequency Hz Sound Examiner SE 400 Series Relative dB 92 Index BK4936 microphone back facing Tolerance IEC 61672 class 1 Directional frequency response positioned back side toward noise source 09 309 incidence angles 5 0 Za RM Won ah y E Ee NA IVEARAM V 5 i Directional frequency response positioned back side toward noise source 09 90 incidence angles Frequency Hz 5 Sound Examiner SE 400 Series 93 Index incidence angles urce 0 150 SO se Dire
60. onse and a 3 dB exchange rate The time response and frequency weightings may be changed via the softkeys on any measurement screen when in stop mode 1 To change the frequency weighting repeatedly press the corresponding softkey to toggle and select A C or Z 2 To change the response time press the corresponding softkey to select either F Fast or S Slow mH 00 00 00 us dec ASmx LASm n E Response time and frequency weighting Printer icon only available on SE 400 non IS versions with SoundPatrol feature added Figure 3 1 Response time and frequency weighting Sound Examiner SE 400 Series Setup instrument configuration Opening the setup screen for instrument configuration Opening the setup screen for instrument configuration The settings can be accessed or changed when in stop mode by selecting the D icon via the corresponding softkey see A below The Setup screen appears See B below A Start screen Measurement screen Setup icon Press the softkey to open the menu Softkey Press to select the corresponding setup menu B 1 Setup screen non IS models B 2 Setup screen IS models UNIT INFORMATION UNIT INFORMATION CALIBRATION MEMORY TIME DATE CALIBRATION MEMORY TIME DATE SECURITY COMMUNICATIONS SECURITY AUTO RUN PRINT SETUP Figure 3 2 Opening the Setup screen Sound Examiner SE 400 Series 10 Setup instrument configuration M
61. onse positioned toward noise source aa angles i Hp myey Frequency Hz Directional frequency response positioned toward noise source 09 1809 incidence angles Hp 9502 04 Frequency Hz Sound Examiner SE 400 Series 112 Index BK4936 microphone with remote preamp RICR and windscreen Tolerance IEC 61672 class 1 Directional frequency response positioned toward noise source 0 30 incidence angles 5 Relative dB Frequency Hz Directional frequency response positioned toward noise source 09 909 incidence angles Relative dB Frequency Hz Sound Examiner SE 400 Series 113 Index Directional frequency response positioned toward noise source 0 150 incidence angles ORB E S e BBBBBBuBB ATAN EA SAN uu LMeBBBBBBduHudd HHHH HHH STA AHH CAE EE HTT HHE UT PB ce ficocono ce Jrgiadoddd arc Frequency Hz Ww e Lo e 15 20 gp 9angjou e T Directional frequency response positioned toward noise source 09 1809 incidence angles gp one Io Sound Examiner SE 400 Series Frequency Hz 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 hazards 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 indus
62. p 09 309 incidence angles ea A PO m fH 5 Relative dB Frequency Hz Econ frequency response using windscreen amp remote preamp 09 90 incidence angles Relative dB i Frequency Hz Sound Examiner SE 400 Series 101 Index idence angles 0 150 inc p amp remote pream windscreen ing y response us onal frequenc Directi HE ER E H RIA e HERE v IE H HHHH Ecotec ela HLS n tou n EE San Hp sang Frequency Hz idence angles 09 180 inc mp n amp remote prea e re indsc W ng response usi quency fre na lo Direct OP 9ADE 9 Frequency Hz Sound Examiner SE 400 Series 102 Index BK4936 microphone with RICR side facing Tolerance IEC 61672 class 1 Directional frequency response positioned side toward noise source 09 309 incidence angles 10 Frequency Hz Directional frequency response positioned side toward noise source 0 90 incidence angles 10 Relative dB Frequency Hz Sound Examiner SE 400 Series 103 Index Directional frequency response positioned side toward noise source 0 150 incidence angles gp ng ou Frequency Hz 180 incidence angles Directional frequency response positioned side toward noise source 0 PE S ACCU Lr E RII E EA see ee eiii rrnniinrirriiirrniprnniiibrpiilibnir gp arped Frequency Hz Sound Examiner SE 400 Series 104 Index BK4936 mic
63. prior to taking measurements assures the instrument is accurate for the current environment Performing a calibration after a log session post cal verifies that environmental conditions have not significantly changed during the log session gt Note Performing calibrations also ensures the microphone is operating correctly and not damaged i e torn or contaminated diaphragm You can calibrate the instrument in the field with reference to the output of a calibrated sound source 3M offers a line of acoustic calibrators that are available for performing calibration of the Sound Examiner such as the 3M AcousticCal AC 300 Calibrator and the QC10 20 calibrator Performing a Calibration Before beginning your calibration confirm check the calibrator has sufficient battery power to perform the calibration Also you will want to insert the calibrator adapter into the upper cavity of the calibrator 1 Ensure the SE 400 Series is turned On stopped and not logging 2 Attach the calibrator and calibrator adapter to the SE 400 Series Set the calibrator to 1000 Hz and 114 dB if it is selectable Sound Examiner SE 400 Series 17 Calibrate Performing a Calibration 3 Turn on the Calibrator by pressing the Qe AcoustiCal AC 300 Calibrator e Select 1000Hz and 114 dB Microphone Place calibrator over microphone Cal Adapter Insert into cavity of the AC 300 Figure 4 1 SE 400 Series and calibrating 4 From the main measure
64. range of the human ear the ratio is calculated logarithmically by the formula below where Lr is the reference pressure SPL 20 log dB r Threshold An SPL value that defines a lower level of acceptable values Only SPL samples that exceed the threshold are used in some calculations Upper Limit UL The total time during a study that the SPL exceeds the Upper Limit meter setting Sound Examiner SE 400 Series Appendix B Weighting A C Z 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 The three Sound Examiner curves are plotted in Figure B 5 att VEO Vi ATLAS Relative dB e uency T il 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 Sound Examiner SE 400 Series APPENDIX C 39 Appendix C Customer service Contacting 3M Instrumentation Should your 3M equipment 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 3Md
65. reamp and windscreen sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Corrections 8000 10000 16000 Sound Examiner SE 400 Series 64 Data Addendum Pressure to free field corrections with BK4936 microphone and remote preamp and RICR sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response BK4936 microphone Pressure Field to Free Field Frequency Corrections co 8000 10000 Sound Examiner SE 400 Series 65 Data Addendum Pressure to free field corrections with QE7052 microphone sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response QE7052 microphone Pressure Field to Free Field Frequency Corrections in Hz in dB Sound Examiner SE 400 Series 66 Data Addendum Pressure to free field corrections with QE7052 microphone with windscreen sections 5 2 8 9 2 7d Note add to pressure response to get O incidence free field response B amp K 4226 calibrator may be used to determine the pressure field response QE7052 microphone Pressure Field to Free Field Frequency Corrections in Hz in dB
66. red 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 integrated reading Lave Dose and TWA but does not affect the instantaneous sound level Please refer to www osha gov for more information Lava 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 threshold 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 e
67. requency response facing back toward sound source 09 309incidence angles 10 Frequency Hz Directional frequency response facing back toward sound source 09 90 incidence angles 10 Frequency Hz Sound Examiner SE 400 Series 83 Index Directional frequency response facing back toward sound source 0 150 incidence angles AP 9104194 Frequency Hz incidence angles 180 Directional frequency response facing back toward sound source 0 ESEESEEDRBh a eo a osas 3 ENEEBEBENEEP 2292 aE EERE EEE EEN n LiT vt E e ui e E A EEE PEERS EEE eee l 1 1 1 1 1 i 1 1 I 1 1 i 1 1 I 1 I un c i da HP 9502194 Frequency Hz Sound Examiner SE 400 Series 84 Index QE7052 microphone side facing Tolerance IEC 61672 class 2 Directional frequency response positioned side toward noise source 09 309 incidence angles 5 Relative dB Frequency Hz Directional frequency positioned side toward noise source 09 90 incidence angles 10 Relative dB Frequency Hz Sound Examiner SE 400 Series 85 Index Directional frequency response positioned side toward noise source 0 150 incidence angles gp ogro Frequency Hz Directional frequency response positioned side toward noise source 09 180 incidence angles ap 906 04 e KD L I I I 1 1 I I I I Li Li 1 I 1 1 I I 1 I I I I I 1 1 I I 1 I I I 1 1 I I I I 1 1 I I L I
68. rophone with RICR back facing Tolerance IEC 61672 class 1 Directional frequency response positioned back toward noise source 09 309incidence angles Frequency Hz Directional frequency response positioned back toward noise source 0 90 incidence angles Frequency Hz Sound Examiner SE 400 Series 105 Index Directional frequency response positioned back toward noise source 09 1509incidence angles 10 Relative dB Frequency Hz Directional frequency response positioned back toward noise source 09 1509incidence angles 5 i n rd d E a E cra T i ir 1 j er ier 2 T 5 T a bo L T E 7 3 a i MN M S MR pA ry Relative dB 3 Frequency Hz Sound Examiner SE 400 Series Relative dB 106 Index BK4936 microphone with RICR and windscreen side facing Tolerance IEC 61672 class 1 Directional frequency response positioned side toward noise source 09 309 incidence angles 10 100 100000 Frequency Hz Directional frequency response positioned side toward noise source 0 90 incidence angles 10 Frequency Hz Sound Examiner SE 400 Series 107 Index Directional frequency response positioned side toward noise source 0 150 incidence angles gp eaneley Frequency Hz Directional frequency response positioned side toward noise source 0 180 incidence angles ua e ks Hp gery 15 Frequency Hz Sound Examiner SE 400 Series Relati
69. ry run time may be reduced when operating at lower than 0 C 32 F temperatures The SE 400 Series non IS models are 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 lil Sound Examiner Intrinsically Safe Models user warnings safety markings and standard information Sound Examiner SE 401 and SE 402 Intrinsically Safe S curit Intrins que Models user warnings safety markings and standards information AN WARNING To prevent ignition of flammable or combustible atmospheres there are no serviceable parts Repair and battery replacement must be done by authorized service personnel only Avertissement Pour viter l inflammation d atmosph res inflammables ou combustibles il n y a pas de pi ces r parables R paration et remplacement de la batterie doivent tre effectu s par le personnel de service autoris AN WARNING Substitution of components may impair intrinsic safety Do not open Avertissement La substitution de composants peut compromettre la S curit Intrins que DA WARNING Contains built in lithium polymer battery Do not incinerate or dispose of in fire Do not disassemble alter or re construct Avertissement Contient la batterie int gr e au lithium polym re Ne pas incin rer ou jeter au feu Ne pas d monter modifier ou re construire A WARNING To reduce the risk of explosion recharge the battery outside o
70. s the sampled sound over a one second period Assuming the sampled run time to be greater than one second SEL is the equivalent one second noise that would be equal in energy to the noise that was sampled SEL is typically measured using a 3dB exchange rate without a threshold Lae is not used by OSHA Table 4 1 Measurement notations Sound Examiner SE 400 Series 21 Measure Run stop and view results Run stop and view results The run stop key is used to run and stop integrating measurements which is saved as a session The viewable measurement screens include the multi measurement screen which is the default screen and the single measurement screen When the SE 400 Series is in stop mode it will display the summary data until the instrument is powered off or the run key is pressed 1 To start a session press the e key The Run icon will appear with a run time clock indicating the current duration of your session 00 08 45 Run time clock 86 Z Run icon Las QU d LASmx 95 4 dB LASmn 80 2 dB LApk 95 9 dB LASeq 88 2 dB Response Time Frequency Weighting softkey menus Parameters can be changed in stop mode They cannot be changed when in run mode Figure 4 8 Main multi measurement screen in Run mode 2 To stop a session press the gt key The Stop icon will appear gt Note the duration of the session is indicated by the run time clock 3 To view a single large measurement press the em key T
71. scen dete esten eie even dett esten bete esten deti esten dis 19 Figure 4 7 Measurement positioning and tripod Mo Canarias 20 Figure 4 8 Main multi measurement screen in Run mode cecesesesssssssssessssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssseseseseseseseseserstenes 21 Figure 4 9 Single measurement screen in stop MOAGE ecesesesesssesssesssssssssssssssesssssssssssesssssssssssssssssssssssssssssssssssssssssssesssssssssssesssesssesesereresetereres 21 Figure 4 10 SESSION MECO dead de ee de ee M dd E dee dd E 22 Fome d 1 Saved SESSIONS osse E Diva E Eo Nn Das Ns Ls LM d 22 Figure 4 12 Reviewing Session Data 23 Figure 4 13 Sample Sound Examiner dare iaa 23 Figure 4 14 Downloading files from DMS to SE 400 Series cccssssssssssssssssssssssssssssssssssssesesssssssssssssesesssesesssessssssussesesssessseseusesseseetesseeeeesteteres 24 Figure4 19 Baud tate setup and prb COE zac tete e o c o i D EO GE CN d cdd 29 Figure 4 16 Print Setup screen R M 26 Figure 4 17 Example of extension cable and O tds 28 Figure 4 18 SE 400 Series with extension cable and preamp attachment sse tnter nnne nnns 28 Tables Table 1 1 Sound Examiner SE 400 models explained sess tnnt tn tnnt tata te tesi teta ta ta tasa sheets 1 Table 1 2 K
72. ss a second time to view the measurement screen pa 00 00 00 SETUP COMMUNICATIONS RS 232 SERIAL Baud rate i LASmx BAUD RATE settings 4800 9600 LASmn 19200 115200 LApk Printer icon Press to print SoundPatrol reports 20 OCT 2011 10 11 Figure 4 15 Baud rate setup and print icon Sound Examiner SE 400 Series 26 SoundPatrol feature non IS models only Print setup for summary reports Print setup for summary reports With the SoundPatrol feature SE 400 Non IS models only you have the option to change the measurements and other parameters to appear on the summary data report The two options include printing a specific parameter or omitting a parameter from the report Changing the summary report print settings 1 From the setup menu press e O keys to select Print Settings and press amp key 2 To select a parameter to change press e O keys and then press e key to move to the second column 3 To change to Print or Omit press DCI ores key to save and return to the first column 00 22 49 Lmax Lmin L Peak TE To change the parameters appearing in the Leq summary report choose print to designate the Runtime Print parameters to appear on the report or omit to Date Print exclude them Time Print Location Print Figure 4 16 Print Setup screen 4 Repeat steps 2 and 3 to change what appears on the hand held print report To return to the measurement screen press E
73. trial 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 for details Personal Safety Division 3M Detection Solutions 1060 Corporate Center Drive Oconomowoc WI 53066 ISO 9001 Registered Company 3M is a trademark of 3M Company used under license in Canada ISO 17025 Accredited Calibration Lab Please recycle Printed in USA Customer Service 262 567 9157 2015 3M Company Toll Free 800 245 0779 All rights reserved www 3M com detection 34 8708 6285 0 Rev G 11 15
74. uency response setting but not by the time response setting of the meter Noise Unwanted sound 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 Sound Examiner SE 400 Series 36 Appendix B 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 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 00002 Pascals Response time Fast F Slow S Selectable time response settings used in the Sound Examiner measurements The response time is a standardized exponential time weighting of the input signal according to fast F or slow S time response relationships Time response can be described with a time constant The time constants for fast and slow responses are 0 125 s 1 0 s Relative response dB Burst duration t seconds Figure B 2 Slow response to a tone burst Sound Examiner SE 400 Series 37 Appendix B Relative response dB Burst duration t milliseconds Figure B 3 Fast response to a tone burst SPL Las Sound pressure level A ratio of one sound pressure to a reference pressure Because of the enormous dynamic
75. upply the required power to charge the SE 400 In such a case the SE 400 will display the following warning Low USB power to charge When charging the battery indicator will scroll shading in the indicator When the battery is fully charged the battery indicator will stop scrolling See Figure below Charging states e A fully charged MR battery state indicates approximately 18 hours of run time without a backlight for the non IS models and 9 hours for IS models e Alow battery state will display a blinking non shaded battery icon LL P e A charging battery state will appear as if the battery icon TT capacity is increasing Battery indicator Charging state the battery l indicator scrolls until the battery is fully charged Figure 2 3 Charging state for SE 400 Series Sound Examiner SE 400 Series CHAPTER 8 Setup instrument configuration Response time and frequency weighting settings 3 Setup instrument configuration The SE 400 Series is shipped with default setup parameters These customizable parameters include the following e ime response and frequency weighting General meter settings Exchange rate Language Contrast Viewing instrument information Time date setting Lock Secure run and setup modes Memory deleting clearing memory Auto Run time date setting Response time and frequency weighting settings sound level measurements are performed typically with A frequency weighting a slow time resp
76. ve dB 108 Index BK4936 microphone with RICR and windscreen back facing Tolerance IEC 61672 class 1 Directional frequency response positioned back toward noise source 0 30 incidence angles 10 Frequency Hz Directional frequency response positioned back toward noise source 0 90 incidence angles 10 Relative dB Frequency Hz Sound Examiner SE 400 Series 109 Index incidence angles 150 response positioned back toward noise source 0 y Directional frequenc E NOAA E HEHHEHHH EME ee EE HH HAHHA HA all HHHHH HHR SAV GHH HHHH EEE EEE EEE EE AHHH n HH n ce uw V T i gP agera Frequency Hz incidence angles requency response positioned back toward noise source 0 180 onal f Directi RI AT dT e Hii civ b t LET OG gr g g gd g 1111101111 Prrnrrrred 111111111 y i INN IA IA II og T ibl LET GL XN g g gg g 1111101111 1111111 1 111111111 eu pacc EE AAA HAHAHA AAA HEAR SU 2 m i Hp sAngp Frequency Hz Sound Examiner SE 400 Series 110 Index BK4936 microphone with RICR and remote preamp Relative dB Relative dE Tolerance IEC 61672 class 1 eee frequency response positioned toward noise source 0 30 incidence angles Frequency Hz Directional frequency response positioned toward noise source 0 90 incidence angles 10 F i Frequency Hz Sound Examiner SE 400 Series 111 Index Directional frequency resp
77. with Class Type 2 Microphone USB cable external power cord with USB windscreen calibrator adapter carry case and user manual CARR TO Sound Examiner SE 401 non IS Includes meter with Class Type 1 Microphone Remote Option USB cable external power cord with USB indscreen calibrator adapter carry case and user manual ER T Sound Examiner SE 402 10 non IS kit includes meter with Class Type 2 Microphone AC 300 Calibrator USB cable external power cord with USB indscreen calibrator adapter carry case and user manual 70 0716 2113 3 3M Sound Examiner SE 401 non IS AC3 kit includes meter with Class Type 2 Microphone 3M AcoustiCal AC 300 Calibrator Class Type 1 Microphone Remote Option USB cable external power cord with USB windscreen calibrator adapter carry case and user manual AER n Sound Examiner Kit SE 402 R non IS with removable preamp kit includes meter with Class Type 2 Microphone 53 575 USB cable meter with removable preamp 53 321 USB power supply 59 344 WS 7 windscreen 56 990 calibrator adapter and 53 711 carrying case and user manual LOHN UE Sound Examiner SE 402 R 10 non IS kit with removable preamp and QC 10 calibrator kit includes meter with Class Type 2 Microphone with removable preamp AC 300 calibrator USB cable external power cord with USB windscreen calibrator adapter carry case and user manual A ee Examiner SE 402 Intrinsically Safe model Includes meter with Class Type 2 Microphone USB cab
78. xceeded the 80 dB threshold during the one hour period then the Lavc would indicate a reading of zero If 80 dB was exceeded for only a few seconds Sound Examiner SE 400 Series 35 Appendix B due to a telephone ringing near the instrument then only those seconds will contribute to the Lavc resulting in a level perhaps around 40 dB notably lower than the actual levels in the environment RTIME LS ER bop ER log 2 dt log RTIME dB 0 LEo The true equivalent sound level measured over the run time The term Lea is functionally the same as Lave except that it is only used when the Exchange Rate is set to 3 dB and the threshold is set to none Le The sound exposure level averages the sampled sound over a one second period Assuming the sampled run time to be greater than one second level exposure is the equivalent noise that would be equal in energy to the noise that was sampled SEL is typically measured using a 3dB exchange rate without a threshold Lae is not used by OSHA Lun Minimum SPL Lowest SPL measured over a time interval Lux Maximum SPL Highest SPL measured over a time interval Logging In sound studies the saving of measurements 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 instantaneous value obtained during a study or a session A peak SPL measurement is affected by the freq

Sound Examiner SE-400 Series User Manual

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