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Svantek SV 971A, User Manual

The Svantek SV 971A is a high-quality sound level meter designed for accurate noise measurements. Ensure precise use of this device by referring to the User Manual available for free download on our website. This essential manual provides in-depth instructions on operating the SV 971A effectively and efficiently.

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     SV 971A User Manual 

57 

 

 

The screen with the list of available commands on setup 
files  is  opened  after  pressing  the 

<Enter>

  key  on  the 

marked (highlighted) setup file.  

 

 <ENT> 

 

If  the  right-hand  box  of  the  setup  file  is  marked,  this 
setup  will  be  in  the  list  of  setups  during  start-up  of the 
instrument, so you can choose pre-defined setup in the 
beginning of the measurement session. 

    

=>

   

 

Summary of Contents for SV 971A

Page 1: ...USER MANUAL SV 971A POCKET SIZE SOUND LEVEL METER ANALYSER Warsaw 2021 09 23 Rev 1 00 Copyright 2021 SVANTEK All rights reserved...

Page 2: ...l belong to their respective manufacturers Microsoft Windows Excel and Word are registered trademarks of Microsoft Corporation The Bluetooth word mark and logos are registered trademarks owned by Blue...

Page 3: ...ATING OPTIONAL FUNCTIONS 27 3 MEASUREMENT FUNCTIONS AND CALIBRATION FUNCTION 28 3 1 ACTIVATING MEASUREMENT FUNCTIONS MEASUREMENT FUNCTION 28 3 2 CALIBRATION OF THE INSTRUMENT CALIBRATION 28 3 2 1 Cali...

Page 4: ...PRESENTATION MEASUREMENT RESULTS 52 5 4 CHOOSING LOGGER RESULTS FOR PRESENTATION LOGGER RESULTS 52 5 5 CONFIGURING POWER SAVER SCREEN SETUP 53 6 MANAGING FILES FILE 54 6 1 MANAGING FILES FILE MANAGER...

Page 5: ...electing measurement range for 1 1 and 1 3 octave analysis Range 70 10 2 3 Logging of 1 1 and 1 3 octave spectra Logging 70 10 2 4 Setting parameters of 1 1 and 1 3 octave analysis Spectrum 70 10 3 CO...

Page 6: ...e values 94 13 4 5 Generating reports 94 14 ASSISTANT MOBILE APPLICATION 95 14 1 INSTALLING ASSISTANT ON A MOBILE DEVICE 95 14 2 CONNECTION VIA BLUETOOTH 95 14 3 CONTROL VIA BLUETOOTH 96 14 3 1 Instru...

Page 7: ...1 FUNCTION D DATA FILES ACCESS 150 A 2 FUNCTION S DIRECT SETUP ACCESS 151 A 3 CONTROL SETTING CODES 152 APPENDIX B DATA FILE STRUCTURES 179 B 1 GENERAL STRUCTURE OF THE SV 971A FILES 179 B 2 STRUCTUR...

Page 8: ...SA 271A OUTDOOR MICROPHONE KIT 260 C 6 DECLARATION OF CONFORMITY 283 APPENDIX D DEFINITIONS AND FORMULAE OF MEASURED VALUES 284 D 1 BASIC TERMS AND DEFINITIONS 284 D 2 DEFINITIONS AND FORMULAS OF THE...

Page 9: ...guration mode 20 Control keys 18 Criterion level 75 D Day time limits 35 Decay 77 Decay method 79 Default settings 23 Deleting files 56 Detector 38 75 Directory 55 Display colour 53 Display mode 19 48...

Page 10: ...rs 22 Max spectrum 72 Measurement function 28 69 74 77 81 Measurement mode 19 Measurement settings 33 Measurement trigger 35 Measurement view 19 Memory 25 Menu position 21 Min spectrum 72 N New direct...

Page 11: ...y 81 Start delay 34 Start measurements 20 Start synchronisation 34 Start Stop interface 58 Statistics view 51 STI 81 STIPA 81 Summary results 38 40 70 T Text editor 22 Threshold level 75 Timer 46 Tota...

Page 12: ...ackages Supervisor for data downloading visualization basic post processing and exporting to commonly used office software applications and also with the full analysis package SvanPC that enables adva...

Page 13: ...eech intelligibility in the room acoustics and or public address systems 1 2 GENERAL FEATURES OF SV 971A Sound Level Meter in extremely small pocket size body Noise measurements meeting Class 1 IEC 61...

Page 14: ...y single license 1 5 FIRMWARE OPTIONS AVAILABLE SF 971A_P1 Package SF 971A_1 1 1 1 3 octave and audio recording SF 971A_P2 Package SF 971A_5 RT60 SF 971A_20 STIPA BA_Assistant APP SvanPC _BA not inclu...

Page 15: ...rature at the measuring point long enough acclimatization of the instrument is recommended so that its temperature is as close to the ambient temperature as possible In the case of measurements in the...

Page 16: ...scription of the signals connected to the sockets is given in Appendix C Bottom cover of the instrument In the bottom cover there is only one socket USB C type The USB C Device 2 0 interface is the se...

Page 17: ...USB socket to the PC or other USB power source via the SC 158 cable When the USB is connected the instrument automatically switches powering from the internal batteries to the USB powering After disco...

Page 18: ...n in the menu and confirms selected settings In the Measurement mode it switches sub views Some additional functions of this key will be described in the following chapters of this manual ESC This key...

Page 19: ...lts and the configuration menu The instrument has two general modes of operation measurement performance results preview mode and configuration mode with the use of menu functionality Turning on the i...

Page 20: ...urement To pause a measurement press the Shift and ESC key together The measurement will be paused and the icon will appear together with the Pause screen Sh ESC The Pause mode allows you to erase up...

Page 21: ...onfiguration settings by feature The main Menu is opened after pressing the Menu Shift Enter key The main Menu list contains the following sections Function Measurement Display File Instrument Auxilia...

Page 22: ...is list again the last selected option will be marked Complex parameters For complex parameters consisted of more than one value field like RTC you should select the field with the key and then select...

Page 23: ...ssure infinite integration time Integration Period Inf and linear Leq integration LEQ Integration Linear Sound pressure is measured with compensation of microphone internal noise and case effect in th...

Page 24: ...the instrument s logger file Grey colour of the icon means that the instrument waits for the logging start after pressing Start key due to a start delay or a delay caused by a trigger signal icon is d...

Page 25: ...the data logging step The overload time is measured by the OVL result during the Integration Period and is saved in the logger file as part of Summary Results Underrange detector The instrument has t...

Page 26: ...ter using Factory Settings function is called SVANTEK Note During the measurement run with data logging to the logger file the logger icon is displayed When the signal is recorded to the wave file the...

Page 27: ...les can be upload via micro SD card or via SvanPC or Supervisor software 2 11 ACTIVATING OPTIONAL FUNCTIONS Standard instrument firmware contains all basic functions to perform measurements in accorda...

Page 28: ...the user should remember about the currently selected function Note The 1 1 and 1 3 octave analysis Dosimeter RT60 and STIPA functions are optional and should be unlocked by entering an activation cod...

Page 29: ...calibration factor is always added to measurement results and measurement range limits of all measurement functions Note The recommended factory calibration interval is 12 months for instruments to be...

Page 30: ...levels nearby calibrator or measurement channel microphone preamplifier or instrument itself is damaged Note During the calibration measurement external disturbances acoustic noise or vibrations shoul...

Page 31: ...form automatic calibration when the sound calibrator is attached In this case the Calibration by measurement screen will appear automatically If Auto Cal is switched off the user should enter this scr...

Page 32: ...ion signal will be displayed If the maximal difference between three consecutive 1 second LCeq results is less than 0 05dB the calibration measurement will be finished The measurement can be always st...

Page 33: ...the alarm function This position appears only in the Dosimeter function and the Advanced interface mode Logging allowing you to configure the logging function Spectrum allowing you to set spectrum pa...

Page 34: ...e logger file as Summary Results see description of the Logger Setup The integration period can be infinite Inf or selected from the set 24h 8h 1h 15m 5m 1m from 1s to 59s with 1s step from 1m to 59m...

Page 35: ...enables fulfilling the requirements of another standard for time averaged Leq measurements When this option is selected values of the Leq Lden LEPd Ln and Sel results depend on the detector time cons...

Page 36: ...ondition value of the RMS result Source integrated by 0 5 ms is greater lower than the threshold value Level In other cases the instrument continues checking the trigger condition every 0 5 mc When th...

Page 37: ...hanged Threshold level The threshold Level can be set in the range from 24 dB to 136 dB The Source value compares with the Level value every 0 5 milliseconds Speed of Source value changing This positi...

Page 38: ...er path Menu Measurement General Settings The instrument enables also additional registration of some results with different step defined by the Logger Step parameter path Menu Measurement Logging Log...

Page 39: ...Name position Default value Off In other cases the registration will be carried out in separate files and the registration in the new file will start after expiration of integration period Integr Per...

Page 40: ...hat the instrument measures with the Integration Period step L Leq LE Lden LEPd Ltm3 Ltm5 Ln OVL Lpeak Lmax Lmin EX SD Note In the Simple interface mode the Summary Results parameter is hidden but the...

Page 41: ...time history results Logger Results with the Logger Step under the condition value of the LEQ result Source averaged by the Logger Step period is greater lower than the threshold value Level In other...

Page 42: ...lows to avoid the effect of pulsation 4 5 4 Configuring signal recording Wave Recording The Wave Recording position enables activating and configuring a waveform signal recording in the separate file...

Page 43: ...ec Time because during this period no second trigger condition has been met During the second recording the measurement was stopped and the record is shorter than Rec Time Note When a signal recording...

Page 44: ...hen a signal recording is waiting for the gradient trigger manual trigger or integration period trigger the flashing trigger icon superimposes on the grey signal icon The Filter position enables the u...

Page 45: ...of the available measurement ranges in the instrument The absolute range values depend on the calibration factor and are shown on the Range screen ENT There are two ranges available Normal and Low The...

Page 46: ...Lev screen you can define ten statistical levels named from N1 to N10 to be calculated displayed and saved in a file as Summary Results see Appendix D Default statistical levels have following settin...

Page 47: ...really want to turn off the instrument because it will also turn off the set Timer Note Make sure to check that the real time clock settings are correct before using the timer Note Make sure that the...

Page 48: ...ogger Res allowing you to select time history results to be viewed as a plot Screen Set allowing you to switch rotation of the screen on off and set the energy saver function 5 1 ENABLING VIEWS DISPLA...

Page 49: ...mber 4 Quasi analogue value indicator 5 Implemented weighting filter Z A C or B 6 Detector time constant Imp Fast Slow for the exponential detector or Lin for the linear detector 7 Units of measured v...

Page 50: ...file with the key pressed with Shift and then change the result with the key The statistical levels can be changed with the key pressed with Shift 5 1 3 Logger view In the Logger mode the history resu...

Page 51: ...with the key pressed with Shift 5 1 5 Running SPL view The Run SPL view shows the SPL result when measurement is not currently running In this mode the SPL result is calculated and displayed but not...

Page 52: ...Res position enables choosing the Sound Level Meter SLM Results or Dose Meter Dosim Res measurement results which will be presented in different views ENT The result can be selected from SLM Results l...

Page 53: ...er function Consumption of the instrument s internal source of power can be minimising by reducing the brightness of the screen when possible There are two options of power saver function Dim Mode The...

Page 54: ...t available The instrument creates files of the next types Logger files with measurement results extension SVL icon Wave files with signal recording extension WAV icon Setup files with measurement and...

Page 55: ...ectory press the key Creating new directory First position of the File Manag list is New Dir which enables creating the new directory To create the new directory enter the directory in which the new o...

Page 56: ...list select the file directory to be deleted and press the Enter key Select the Delete position in the command list and press Enter You should confirm this action since it cannot be undone ENT ENT 6...

Page 57: ...is opened after pressing the Enter key on the marked highlighted setup file ENT If the right hand box of the setup file is marked this setup will be in the list of setups during start up of the instru...

Page 58: ...e threshold for marker registration of instrument self vibration This position is available only in the Advanced user interface mode RTC allowing you to set the Real Time Clock Unit Label allowing you...

Page 59: ...tch on the key lock and the fast unlock of the keyboard with four keys ENT Shift key mode In the Shift position you can choose between 2nd Funct and Direct When the Direct option is selected the Shift...

Page 60: ...f 3V m then it is recommended to switch to the Full 12Mbps speed mode 7 6 SETTING INTERFACE PARAMETERS COMMUNICATION PORTS The Communication Ports position enables selecting and programming the serial...

Page 61: ...f the instrument This clock is displayed in the top right corner of the display To set year month day hour minute or second select the appropriate field with the or key select value with the key press...

Page 62: ...dvanced interface mode Warnings allowing you to enable disable warnings to be displayed during the normal operation of the instrument 8 1 SELECTING USER INTERFACE LANGUAGE LANGUAGE The Language positi...

Page 63: ...h at the top line of the screen In this case you can comment the measurement Press Enter to finish recording The recording end will be confirmed with the message Saved O K ENT The file with voice comm...

Page 64: ...en the measurement is completed the warning Power Off becomes active Then if you would like to turn off the instrument you should confirm this If Preampl is active there will be warning if the instrum...

Page 65: ...enu Instrument set RS232 in the Serial Port position and select the transmission speed Baud Rate and the time limit during which the data transmission should be performed Time Out ENT Printers which h...

Page 66: ...9 Ld 60 8 LCFmax 80 0 LEPd 60 8 LCFmin 53 3 Ltm3 77 2 LCF 60 3 Ltm5 80 0 LCeq 60 8 OVL 0 0 LCE 67 8 Profile 3 Slow Z LZpeak 83 3 Ld 68 7 LZFmax 81 4 LEPd 68 7 LZFmin 60 1 Ltm3 78 8 LZF 65 6 Ltm5 81 4...

Page 67: ...nclude to the report all bands of 1 1 or 1 3 spectra Print All or selected bands Pr Selected In the last case the Specrtum position appears in the Report menu You may include Print units of the result...

Page 68: ...SV 971A User Manual 68 9 6 PRINTER SETTINGS PRINTER The Printer position enables setting the number of characters in the report lines from 20 to 500 Default value 32 ENT...

Page 69: ...raph Parameters for Total values e g filters are set by default and cannot be changed Note Total values for 1 1 or 1 3 octave analysis can be different from those obtained for profiles if the LEQ Inte...

Page 70: ...th Menu Measurement Logging Logger Setup Logger On The Leq and Lpeak results from the 1 1 octave or 1 3 octave analysis can also be logged in the logger file with the step defined by the Logger Step p...

Page 71: ...he grid Spect View allowing you to select spectra to be viewed instantaneous averaged maximum or minimum 10 3 1 Presentation of 1 1 and 1 3 octave spectra The Spectrum position in the Display Modes li...

Page 72: ...mic range of the spectrum graph It is possible to select the range from the set 10dB 20dB 40dB 80dB and 120dB The attached example shows spectrum view with 80dB and 40dB dynamics Switching the grid on...

Page 73: ...SV 971A User Manual 73 Minimum and maximum spectra can be presented at the same view with the Averaged and Instantaneous spectrum when the Max or and Min parameter is switched on...

Page 74: ...pause s can be switched off Off or can be programmed based on the RTC time On If Pause is On two additional positions appear which enable setting time for pause begin Pause Begin and time for pause en...

Page 75: ...reshold level for calculation of the ULT results 70dB 140dB PTC Threshold Level Peak Threshold Counter is a threshold level for calculation of the PTC results 70dB 140dB 11 4 CHECKING MEASUREMENT RANG...

Page 76: ...D_8h PrDOSE LAV Leq LE SEL8 E E_8h LEPd PSEL Ltm3 Ltm5 Ln PTC PTP ULT TWA PrTWA Lc a EX SD and OVL You can enable or disable results in the Dosimeter results screen path Menu Display Meas Res Dosim R...

Page 77: ...20 and RT30 is calculated for the measured room response Note It is recommended to familiarize with Appendix E before proceeding This chapter describes only the navigation of the instruments whereas A...

Page 78: ...e in the measuring mode The Noise Mar parameter defines the margin value to the calculated noise level for more detail see Appendix E This parameter can be set in the range 0 0 dB 20 0 dB with 0 1 dB...

Page 79: ...octave bands Note It is necessary to switch on the sound source before starting the measurement because of the trigger requirements for more details see Appendix E If it is necessary to start the ins...

Page 80: ...e results for more details see Appendix E 12 5 AVERAGING RT60 RESULTS If Averaging is On you can average results for consecutive measurements following next steps 1 Being in the RT60 view press the ke...

Page 81: ...STI test signal comprising seven octave band noise signals corresponding with the octave bands from 125 Hz up to 8 kHz Each noise carrier is modulated with one or more modulation frequencies at one th...

Page 82: ...point difference between maximum and minimum values of STI index obtained for the measurement point of the tested area LAeq A weighed time averaged sound level for 15 seconds integration period in dB...

Page 83: ...CIS for the measurement point o STIx results with considered ambient noise STI qualification band LAeq and LCeq results for the individual measurement x 1 2 Red colour of the STIx result indicates er...

Page 84: ...ent files are saved in these directories File contains measured results for the single measurement For example in the below screens the project directory PROJ_001 contains one area directory AREA_001...

Page 85: ...ard deviation is determined with the calculation of the mean STI or CIS for the area 13 3 4 STIPA settings STIPA measurements are configured in the STIPA Settings and Ambient noise screens To configur...

Page 86: ...may perform as many measurements for the measurement point as you heed and you will decide when to stop series of measurements by using the Complete command see Chapter 13 3 6 Automatic averaging ass...

Page 87: ...ues are not necessarily should be the result of some measurements They can be defined on the basis of the user s knowledge design assumptions literature etc In the Ambient noise screen you can set noi...

Page 88: ...y if you wish to perform another measurement or 4 To finish measurement series for the measurement point you should complete them To complete the measurement series in the measurement point press the...

Page 89: ...surement point For this press Enter in the Area view and in the command list select the New point position and press Enter The instrument will create a new point directory To start measurements in the...

Page 90: ...urce at any time and if necessary create next Project Area Source combination in the STIPA Settings screen 13 4 FILES DOWNLOADING AND DATA PROCESSING The measurement files created during the STIPA mea...

Page 91: ...t During the STIPA measurement SV 971A generates files in the SVL format which are grouped in the Point directories belonged to the project Project Area Source To download files use the SVAN Files win...

Page 92: ...th a list of project files empty for now will appear Add folders files to the project that you wish to combine The easiest way to do this is through drag drop operations from the file explorer by sele...

Page 93: ...toolbar In case of Simple projects this window can also be opened via the Add available panel tab and selecting STI STIPA results by default appear for areas sources and points Each point on the view...

Page 94: ...om the selected cell You can copy data to the clipboard from Excel from another program as well as you can copy values from another view of SvanPC thanks to that you can import results from another SV...

Page 95: ...tems You can also download Assistant from the Play Store application 2 Go to the folder on your mobile device with the downloaded installation file assistant_x x x apk tap it and follow installation p...

Page 96: ...screens scanning status screen and result view control screen Tapping the fields inside the instrument frame you can go to the instrument s results view and measurement control screen If you wish to...

Page 97: ...rcentage display the empty memory capacity Dose alarm If the dose exceeds the threshold level the icon is red and the mobile device vibrates Movement of a controlled person If the controlled person is...

Page 98: ...the elapsed measurement time If the measurement is stopped or paused the field turns red or yellow and the time change will be stopped Depending on the selected measurement function the view control...

Page 99: ...99 In case of the Dosimeter function the view control screen presents measurement results for three profiles You can switch profiles by tapping the profile tab You can change the results in the frames...

Page 100: ...If you tap Identify this instrument the instrument shows its name which will blink for 5 seconds then the instrument returns to the previous screen At the same time you can change the name of this ins...

Page 101: ...N AND EXITING THE APPLICATION To check the software version tap the icon in the lower left corner and select the About command To exit the application tap the icon in the lower left corner and select...

Page 102: ...ions of editing instrument settings downloading data files from the instrument as well as data preview and basic recalculations of Leq and RMS SvanPC is enriched with the Projects functionality that a...

Page 103: ...allows to configure instrument settings and upload them to the instrument Markers Block Generator The Marker Block Generator browses through the long logger files in search of events defined by the u...

Page 104: ...1 3 1 6 and 1 12 octave and FFT spectra or perform tonality analysis from 24 wave files in a single operation Reporting Reporting is based on MS Word and it allows to export tables or graphs to a prin...

Page 105: ...ts using the measurement data contained in a project The project functionality uses Building Acoustic module BA which extends basic SvanPC functionality offering easy to use environment and tools for...

Page 106: ...Easy data export to commonly used applications Fast and convinient way of reports generation with the use of templates Powerful tools for data analysis Audio events voice comments and WAVE files supp...

Page 107: ...you more capabilities to manage the selected instrument like Refresh Catalogue Set Clock Edit Name etc if you click right mouse button on the instrument s row Sessions and reporting Sessions is the m...

Page 108: ...rt 4 Field measurements of airborne sound insulation between rooms ISO 140 5 1998 Acoustics Measurement of sound insulation in buildings and of building elements Part 5 Field measurements of airborne...

Page 109: ...rtphone STIPA measurements The STIPA project of BA Assistant allows you to perform speech transmission index STI assessment for estimation the speech intelligibility in the room acoustics and or publi...

Page 110: ...nstall connection with the measuring instruments create measurement project in accordance with the required standard configure measurement points in the assessed area perform measurements remotely and...

Page 111: ...strial memory card has been tested by SVANTEK and cards of this type are strongly recommended for use when the original card is going to be replaced Note If you would like to use the card with higher...

Page 112: ...TRUMENT SYSTEM RESET internal software reset clears any setup configuration and brings back the default factory settings See Factory Settings path Menu Auxiliary Setup HARDWARE RESET internal hardware...

Page 113: ...and environmental protection and long term storage conditions 16 8 CLEANING Clean the surface of the instrument with damp soft cloth The instrument sockets should be cleaned with the use of compressed...

Page 114: ...alled profiles using different weighting filters and LEQ detectors Chapter 3 1 1 1 Octave Measurement Function enabling calculation of Level Meter results and 1 1 octave sound results in accordance wi...

Page 115: ...tion time in 1 1 octave bands or 1 3 octave bands including three total RMS levels A C and Z weighted Two methods can be applied Impulse Response Method and Interrupted Noise Method Results are presen...

Page 116: ...itivity or By Measurement date of calibration and calibration factor Chapter 3 2 2 Calibration History List of calibration records which you can view by pressing the Enter key Chapter 3 2 3 Clear Hist...

Page 117: ...LZpeak Appendix D Lmax Maximal value of the time weighted sound pressure level at the exponential RMS detector output within the elapsed measurement time The Max result for the 1 second period is equa...

Page 118: ...els the certain boundary level surpassed by the temporary noise level values in not more than n of the observation period Ln are calculated on the base of 100ms Leq results and renewed every second on...

Page 119: ...ement Appendix D SEL8 SEL result corresponding to the integration time equal to 8 hours The SEL8 result is calculated on the base of the LEQ Appendix D E Exposition represents the amount of the acoust...

Page 120: ...osure for a worker during a workday Appendix D ULT Upper Limit Time time that SPL exceeded the ULT Threshold Level set during configuration Appendix D PrTWA Projected Time Weighted Average is calculat...

Page 121: ...evels Exposure Time Timer and Alarm Chapter 4 General Settings General measurement settings Start Delay Start Sync Integration Period Repetition Cycles RMS Integration and Day Time Limits Chapter 4 1...

Page 122: ...type of integration of RMS based results RMS detector without time weighting according to the IEC 61672 1 2013 standard Chapter 4 1 Exponential Exponential type of integration of RMS based results RMS...

Page 123: ...standards Z A C B LF Chapter 4 3 Appendix C Appendix D Detector Exponential RMS detector time constant applied in the profile Impulse Fast or Slow for such results like Leq Lmax Lmin LE LEPd Lden L Lt...

Page 124: ...er Chapter 4 6 Appendix C Measurement Trigger Screen that enables configuring triggering of the measurement integration process with parameters Trigger Source Level and Gradient Chapter 4 2 Trigger Po...

Page 125: ...eriod consists and stops the measurement cycle Chapter 4 2 Gradient Type of trigger that starts the 1 second measurement integration under the condition value of the RMS result Source integrated durin...

Page 126: ...en that enables switching the logger function on and setting the main logging parameters Logger Split Logger Step and Logger Name Chapter 4 5 1 Logger Position in the Logger Setup list that switches O...

Page 127: ...ing of Logger Results recording to the logger file Trigger Source Level Pre Trigger and Post Trigger Chapter 4 5 3 Trigger Position that switches Off or On the logger trigger by selecting its type Lev...

Page 128: ...will be recorded continuously from the start of the measurement till its end On trigger recording put additional conditions for triggering and ending of the recording If the instrument is waiting for...

Page 129: ...the 0 5 ms period is greater than the threshold level Level and the gradient of this Source is greater than the threshold level Gradient Chapter 4 5 4 Trigger manual Type of trigger that starts manua...

Page 130: ...Gradient for trigger condition fulfilment Chapter 4 5 4 Pre Trigger Period of signal recording before the first trigger condition moment Off or 1 s Chapter 4 5 4 Recording Time Time of the signal reco...

Page 131: ...e Automatic pause s in the Dosimeter mode that can be programmed based on absolute time Chapter 11 2 Exposure Time Total time during working day in which the worker is exposed to the noise This time i...

Page 132: ...t key and the start of the RT60 measurement Chapter 12 2 Method Method of the RT60 calculation Decay Interrupted Noise Method or Impulse Impulse Response Method The selection of the method depends on...

Page 133: ...s for 1 3 octave Chapter 12 2 Logger Name Name of the Logger file in which data of the RT60 analysis will be recorded Chapter 12 2 Level Threshold level of the sound source for triggering the RT60 mea...

Page 134: ...on the display at the same time Chapter 5 1 2 Logger view View of time history logger results Chapter 5 1 3 Statistics view View of statistics of sound results Chapter 5 1 4 Spectrum view View spectra...

Page 135: ...ch will be presented on the display Chapter 5 3 SLM Results Screen that enables selecting the Sound Level Meter results which will be presented on the display Chapter 5 3 Dosimeter Results Screen that...

Page 136: ...lts for the 1 1 Octave or 1 3 Octave bands Chapter 10 3 3 Peak Spectrum of Lpeak results for the 1 1 Octave or 1 3 Octave bands Chapter 10 3 3 Screen Setup Screen that enables setting the screen brigh...

Page 137: ...Instrument offers three types of user interface limited to start and stop of the measurement Start Stop narrow set of functions for novice users Simple and full set of functions Advanced Chapter 7 1...

Page 138: ...nicatio n Ports Position in the Instrument list that enables selecting and programming the serial port of the instrument Serial Port Chapter 7 6 Serial Port Position in the Communication Ports list wh...

Page 139: ...creens Language Factory Settings Comments Leq Lav and Warnings Chapter 8 Language Screen that enables selecting the user interface language Chapter 8 1 Factory Settings Restoration of the default sett...

Page 140: ...cs and spectra which will be included in the report Chapter 9 2 Results Position in the Report screen that allows you to select results to be included in the report for the selected profiles Chapter 9...

Page 141: ...ypes called functions are available 1 general control functions 2 read out of the measurement results in the SLM mode 3 read out of the measurement results in the 1 1 or 1 3 Octave analysis mode 4 rea...

Page 142: ...in profile 1 SLM function F2 1 C filter is selected in profile 2 SLM function F3 2 Z filter is chosen in profile 3 SLM function F1 3 A filter is selected in profile 1 SEM function F2 4 C filter is se...

Page 143: ...ecified all results will be sent In the case of profile 1 2 or 3 the instrument sends results in the format defined as follows 2 aver profile Xccc where ccc is the value of the result X or question ma...

Page 144: ...uals to 0 when the overload did not occur 2 when the under range took place during the last measurement period but did not occur in the last second of the measurement and 3 when the under range took p...

Page 145: ...4 00 L 90 42 40 C4 c6 l0 W49 72 w85 87 a 0 55 Note The presented above order of the measurement results sent out by the instrument does not depend about the characters sent to the unit Example After s...

Page 146: ...int IDs e g 2 STI PC n 1 2 3 2 STI MC p this command returns the count of the measurements at the point p 2 STI AP p this command allows you to read and set average flag at the point p 2 STI AM p m th...

Page 147: ...ends with semicolon Status byte transmission counter and data bytes are coded in binary form Note The measurement result is coded in binary form as dB 100 e g 34 5 dB is sent as binary number 3450 A 5...

Page 148: ...5 p Status Byte LSB of the transmission counter MSB of the transmission counter NofClasses BottomClass ClassWidth Counter of the class Counter of the class Status Byte gives the information about the...

Page 149: ...etN are settings To write settings to the device follow the opposite procedure Send to the device 7 code set1 set2 set3 setN In case of success the device responds with 7 code In case of an unknown fu...

Page 150: ...umber data binary data count directory size in bytes name filename in the format XXXXXXXX YYY XXXXXXXX filename YYY filename extension dirName directory name nBwr number of bytes to write 1 D c this f...

Page 151: ...n directory in format D i disk address Note Only read functions are available during measurements running state 1 S1 Stop the measurements 1 S0 to unlock all the functions A 2 FUNCTION S DIRECT SETUP...

Page 152: ...ontrol Table A 3 Calibration and microphone settings Table A 4 Profile settings Table A 5 Spectrum settings Table A 6 Dosimeter settings Table A 7 RT60 settings Table A 8 STIPA settings Table A 9 Stat...

Page 153: ...gs and control Group name 1 code 7 code S code Code description Measurement function M BB 1 Level Meter 2 1 1 Octave 3 1 3 Octave 4 Dosimeter 102 1 1 Octave Dosimeter 103 1 3 Octave Dosimeter 8 RT60 1...

Page 154: ...nnn number of repetitions 1 1000 Detector type in the LEQ function L BG 0 Linear 1 Exponential Day time limits DL BH 0 6h 18h 1 7h 19h Rolling time 1 BU nn nn time in seconds 1 60 nn nn time in minute...

Page 155: ...number of the measurement days MR e On e 1 Off e 0 MJ HH hour of the measurement start MK MM minutes of the measurement start ML hh hour of the measurement stop MM mm minutes of the measurement stop...

Page 156: ...n the format 7 CT DD MM YYYY hh mm ss where hh mm ss denotes the time and DD MM YYYY gives the date AG Last calibration date d coded data 0 65535 Date decoding in C language day d 0x1F month d 5 0x0F...

Page 157: ...e n 1 n 0 2 Valid for Dosimeter function Peak Filter type in profile n J Fk n k filter in profile n k 1 Z filter 2 A filter 3 C filter 5 B 6 LF filter n 1 2 3 profile number 1 2 or 3 for function othe...

Page 158: ...vel c c1 p 80 dB c2 p 84 dB c3 p 85 dB c4 p 90 dB c5 p 60 dB c6 p 65 dB c7 p 70 dB c8 p 75 dB c9 p 87 dB p 1 2 3 profile number EBn criterion level in profile n 1 n 0 2 0 80 dB 1 84 dB 2 85 dB 3 90 dB...

Page 159: ...2 k 70 140 dB Table A 7 RT60 settings Group name 1 code 7 code S code Code description RT60 Method VA 1 Decay 2 Impulse Octave VG 1 1 1 octave 2 1 3 octave Frequency Range in 1 1 mode VH 1 63Hz 4kHz...

Page 160: ...ode Code description Statistical levels SL Reading response from the instrument 7 SL sl1 sl2 sl3 sl4 sl5 sl6 sl7 sl8 sl9 sl10 Writing 7 SL sl_index sl_level This function sets statistical levels where...

Page 161: ...se 3 stop hour CN hour 0 23 Pause 3 stop minute CO minute 0 59 Pause 4 CP 0 Off 1 On Pause 4 start hour CR hour 0 23 Pause 4 start minute CS minute 0 59 Pause 4 stop hour CT hour 0 23 Pause 4 stop min...

Page 162: ...s default 1s 0 30 for 12 kHz sampling 0 15 for 24 kHz sampling 0 8 for 48 kHz sampling Recording time IN x x recording time s 1 59 60 3600 with 60s steps and 3600 28800 with 3600s steps Table A 12 Log...

Page 163: ...of the following flags b0 logger with Lpeak spectrum b3 logger with Leq spectrum Logger File Splitting Mode XA DH 0 switched off OFF 1 file is created for each measurement cycle 15 file is created eve...

Page 164: ...ds taken into account before the fulfilment of the triggering condition 0 10 default 0 Logger post trigger Xq GM x number of the records taken into account after the fulfilment of the triggering condi...

Page 165: ...Display Time result in the main and 3 profile views OA 0 Off 1 On Valid for function other than Dosimeter Display Lpeak result in the main and 3 profile views OB 0 Off 1 On Valid for function other t...

Page 166: ...3 profile views ON 0 Off 1 On Valid for function other than Dosimeter Display EX result in the main and 3 profile views OR 0 Off 1 On Valid for function other than Dosimeter Display SD result in the...

Page 167: ...ews PL 0 Off 1 On Valid for Dosimeter function Display E_8h result in the main and 3 profile views PM 0 Off 1 On Valid for Dosimeter function Display LEPd result in the main and 3 profile views PN 0 O...

Page 168: ...profile views OW 0 Off 1 On Valid for Dosimeter function Display OVL result in the main and 3 profile views PX 0 Off 1 On Valid for Dosimeter function Graph Y axis for 1 x OCTAVE SM 0 10dB 1 20dB 2 4...

Page 169: ...x x logger results in profile n 1 n 0 2 x sum of the following flags b0 logger with Lpeak values in profile n b1 logger with Lmax values in profile n b2 logger with Lmin values in profile n b3 logger...

Page 170: ...ust be placed into the SETUP directory of the instrument s SD card prior using this command see 0 or A 1 on file upload Save setup SS name a current instrument setup will be saved as a name svt file i...

Page 171: ...JC 0 English default 1 German 2 Spanish 3 French 4 Hungarian 5 Italian 6 Dutch 7 Polish 8 Portuguese 9 Russian 10 Turkish Leq Lav JE 0 Both 1 Mutual exclusive USB UF JG 0 USB High Speed 480 MHz 1 USB...

Page 172: ...ational acceleration in g for axes x b bb gravitational acceleration in g for axes y c cc gravitational acceleration in g for axes z SPL on stop LL Reading response from the instrument 7 LL L1 where L...

Page 173: ...is blocked when instrument is powered from USB supply Table A 18 Position and time settings Group name 1 code 7 code S code Code description Set GPS marker MG 7 MG p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11...

Page 174: ...s QAn k k print in profile n 1 n 0 2 0 Off 1 On Print profile results QB 0 Off 1 All results 2 Selected results Print statistics QC 0 Off 1 All results 2 Selected results Print Aver spectrum DD 0 Off...

Page 175: ...t E_8h profiles result QL4 0 Off 1 On Print Lden profiles result QL5 0 Off 1 On Print LEPd profiles result QL6 0 Off 1 On Print PSEL profiles result QL7 0 Off 1 On Print Ltm3 profiles result QL8 0 Off...

Page 176: ...P5 0 Off 1 On Valid for 1 3 Octave function Print 63Hz octave result QP6 0 Off 1 On Valid for 1 1 Octave or 1 3 Octave function Print 80Hz octave result QP7 0 Off 1 On Valid for or 1 3 Octave function...

Page 177: ...ve result QS3 0 Off 1 On Valid for 1 1 Octave or 1 3 Octave function Print 2 5kHz octave result QS4 0 Off 1 On Valid for or 1 3 Octave function Print 3 15kHz octave result QS5 0 Off 1 On Valid for 1 3...

Page 178: ...ave result QT4 0 Off 1 On Valid for or 1 3 Octave function Print total A result QT5 0 Off 1 On Valid for 1 1 Octave or 1 3 Octave function Print total C result QT6 0 Off 1 On Valid for 1 1 Octave or 1...

Page 179: ...meters for RT60 analysis cf Tab B 1 22 parameters for STIPA analysis cf Tab B 1 25 Other elements of the file structure are not obligatory for each file type stated above They depend on the file type...

Page 180: ...App B 4 8 13 reserved reserved Table B 1 3 Unit and software specification Word number Name Comment 0 0xnn02 02 nn specification s length 1 UnitNumberL unit number LSB word 2 UnitType type of the unit...

Page 181: ...surement manual 2 Remote 3 Factory Calibration 4 Auto Calibration 0xFFFF Calibration not performed 7 PostCalibrDate date of calibration performed after the measurement cf App B 4 8 PostCalibrTime time...

Page 182: ...t B9 if set to 1 preamplifier disconnected 7 RepCycle repetition cycle 0 infinity nnnn number of repetitions 1 1000 8 NofChannel number of channels 1 8 NofProf number of profiles 3 10 StartDelay start...

Page 183: ...e threshold level only Dosimeter 0 60 65 70 75 80 85 90 10 dB 27 ExchangeRate 1 2nd profile exchange rate only Dosimeter 2 3 4 5 6 23 CriterionLevel 2 3rd profile criterion level only Dosimeter 60 65...

Page 184: ...file is created every 30 min synchronized to RTC 60 The file is created every 1 hour synchronized to RTC 1440 The file is created on the specified times 43 SplitTime 1 logger files splitting time 1 o...

Page 185: ...61 Pause 5 programmable pause no 5 62 PauseBegin 5 start time of the pause no 5 in format 0xhhmm hh hour mm minute 63 PauseEnd 5 end time of the pause no 5 in format 0xhhmm hh hour mm minute 64 65 Me...

Page 186: ...igger Level 5 measurement on trigger Level 2 TriggerSource source of the triggering signal 0 Leq 1 the Leq result from the first profile 3 TriggerLev level of triggering 24 136 dB 10 4 TriggerGrad res...

Page 187: ...gradient of triggering 1 dB ms 100 dB ms 10 5 TriggerPre pretrigger time given in 10ms 6 TriggerPost reserved 7 TriggerSampling sampling frequency given in 10Hz 8 TriggerRecTime recording time of sin...

Page 188: ...4 Lxymin2 8 Lxyeq23 16 LAV 32 LR1 64 LR2 6 FilterPeakP 1 filter type for Peak result calculation in the 1st profile 1 Z 2 A 3 C 5 B 6 LF 7 reserved reserved 8 0xmm06 06 mm sub block s length 9 Detect...

Page 189: ...ents in the 3rd profile defined as a sum of 0 none 1 Lxpeak1 2 Lxymax2 4 Lxymin2 8 Lxyeq23 16 LAV 32 LR1 64 LR2 18 FilterPeakP 3 filter type for Peak result calculation in the 3rd profile 1 Z 2 A 3 C...

Page 190: ...result not displayed 1 Ltm3 result displayed 18 Ltm5 0 Ltm5 result not displayed 1 Ltm5 result displayed 19 Ln 0 Ln result not displayed 1 Ln result displayed 20 PTC 0 PTC result not displayed 1 PTC...

Page 191: ...3 Header of the file from the logger Word number Name Comment 0 0xnn0F 0F nn header s length 1 BuffTSec logger time step full seconds part 2 BuffTMilisec logger time step milliseconds part 3 LowestFre...

Page 192: ...100 dB 10 Result 1 6 Lxyeq23 value in the 1st profile 100 dB 11 Result 1 7 Lden value in the 1st profile 100 dB 12 Result 1 8 Ltm3 value in the 1st profile 100 dB 13 Result 1 9 Ltm5 value in the 1st p...

Page 193: ...3rd profile 100 dB 52 Result 3 4 minimal value Lxymin2 in the 3rd profile 100 dB 53 Result 3 5 Lxy2 value in the 3rd profile 100 dB 54 Result 3 6 Lxyeq23 value in the 3rd profile 100 dB 55 Result 3 7...

Page 194: ...00 dB 15 Result 1 11 TLAV value in the 1st profile 100 dB 16 UnderRes 1 under range value in the 1st profile 17 18 ULTime 1 ULT value in the 1st profile sec 19 20 PTC 1 PTC value in the 1st profile 21...

Page 195: ...ofile 100 dB 57 Result 3 9 Ltm5 value in the 3rd profile 100 dB 58 Result 3 10 LAV value in the 3rd profile 100 dB 59 Result 3 11 TLAV value in the 3rd profile 100 dB 60 UnderRes 3 under range value i...

Page 196: ...Freq lowest 1 1 Octave frequency 100 Hz 3150 3 NOct number of 1 1 Octave values 10 4 NOctTot number of TOTAL values 3 5 20 Octave i 1 1 Octave i value 100 dB i 1 NOct NoctTot 1 13 Table B 1 19 1 3 Oct...

Page 197: ...nd counter in the second profile 0 0x040B 0B prof_mask 3 1 SubblockLength 2 number of classes in the third profile 2 2 3 Histogram 3 1 first counter in the third profile 4 5 Histogram 3 2 second count...

Page 198: ...3 NTer Number of 1 3 Octave values 4 NTotal Number of TOTAL values 5 N1_rt60_freq first frequency 6 N2_rt60_freq last frequency 7 i calculated i i N1_rt60_freq N2_rt60_freq i N_tercje N_tercje N_max_...

Page 199: ...i i N1_rt60_freq N2_rt60_freq i N_tercje N_tercje N_max_total 1 10 i RT30 i i N1_rt60_freq N2_rt60_freq i N_tercje N_tercje N_max_total 1 11 i RT_user i i N1_rt60_freq N2_rt60_freq i N_tercje N_tercj...

Page 200: ...1 LZeq result for the first frequency 100 dB 7 Err1 1 error flag of m f1 for the first frequency 0 1 8 Mf1 1 result of m f1 for the first frequency 100 dB 9 Err2 1 error flag of m f2 for the first fre...

Page 201: ...e file recording parameters cf Tab B 1 9 Special settings for profiles cf Tab B 1 10 Display settings of the main results cf Tab B 1 11 Header of the statistical analysis cf Tab B 1 12 Header of the f...

Page 202: ...on the value of BufferP 2 cf Tab B 1 10 result7 LR2 result depending on the value of BufferP 2 cf Tab B 1 10 4 results of the measurement from the third profile if the corresponding LOGGER position w...

Page 203: ...es denote 4 bytes counter of left or skipped records nnkkjjii ii is the least significant byte nn the most significant byte B 2 1 4 Record with the breaks account PAUSE in the results registration The...

Page 204: ...1 21 HE ending header 1 word which differs from the HS only on b11 bit thanks to it it is possible to analyse the recorded file starting from its end The HEADER format is as follows b15 b14 b13 b12 b...

Page 205: ...lock B 2 1 9 Record with GPS data The value equal to 12288 0xd000 denotes the undefined value Word number Name 0 0xC703 1 Length 2 Quality 3 Time Sec 4 Time Min 5 Time Hour 6 Date Day 7 Date Month 8 D...

Page 206: ...ation cf Tab B 1 3 Setup data cf Tab B 1 23 File end marker cf Tab B 1 24 B 4 DATE AND TIME Following function written in C explain how the date and time are coded void ExtractDateTime int date unsign...

Page 207: ...Pa polarization 0 V Recommended calibrator SV 36 Class 1 sound calibrator 94 114 dB 1000 Hz or equivalent not included in the standard set Accessories included in the SV 971A instrument set SC 158 USB...

Page 208: ...en the Windscreen compensation must be On Periodical test upper frequency 8 kHz Linear operating ranges Two measuring ranges are available Normal and Low The starting point at which tests of level lin...

Page 209: ...easuring range of the acoustic pressure Normal Measuring frequency range of the acoustic pressure 3 dB 5 Hz 20 000 Hz Basic measurement error of the acoustic pressure 0 7 dB measured for the reference...

Page 210: ...137 500 Hz 28 133 28 136 28 137 35 137 28 133 28 136 28 137 31 136 53 140 1 kHz 28 137 28 137 28 137 35 137 28 137 28 137 28 137 31 140 53 140 4 kHz 28 138 28 136 28 136 35 137 28 138 28 136 28 136 31...

Page 211: ...according to IEC 60804 Class 1 Equivalent Time Constant 35 ms Hold Time 1500 s Reference conditions as per IEC 61672 1 2013 Class of the acoustic field Free field Reference acoustic pressure 114 0 dB...

Page 212: ...cy field and Z filter and time weighting F are selected and the SPL measurements are considered The instrument produces greatest radio frequency emission when an extension cable is connected The cable...

Page 213: ...04 0 04 0 04 0 06 Uncertainty IEC 62585 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 dB Frequency Hz 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 12...

Page 214: ...pendixes 214 SV 971A frequency characteristics for 0 deg incidence angle SV18 preamplifier frequency response 8 7 6 5 4 3 2 1 0 0 1 1 10 100 1000 10000 100000 1000000 1 V output 7 V output SV 18A typi...

Page 215: ...51 0 06 0 13 0 07 0 25 259 0 05 0 09 0 04 0 25 266 0 05 0 06 0 01 0 25 274 0 04 0 04 0 00 0 25 282 0 04 0 03 0 01 0 25 290 0 04 0 03 0 01 0 25 299 0 03 0 04 0 00 0 25 307 0 03 0 06 0 03 0 25 316 0 04...

Page 216: ...0 25 866 0 01 0 00 0 01 0 25 891 0 01 0 01 0 01 0 25 917 0 00 0 01 0 01 0 25 944 0 00 0 01 0 01 0 25 972 0 00 0 00 0 00 0 25 1 000 0 00 0 01 0 01 0 25 1 029 0 00 0 02 0 02 0 25 1 059 0 01 0 02 0 01 0...

Page 217: ...0 11 0 22 0 11 0 25 3 981 0 13 0 15 0 02 0 25 4 097 0 14 0 06 0 08 0 35 4 217 0 12 0 19 0 07 0 35 4 340 0 13 0 26 0 12 0 35 4 467 0 16 0 27 0 12 0 35 4 597 0 16 0 14 0 02 0 35 4 732 0 17 0 14 0 03 0...

Page 218: ...0 13 0 35 17 278 0 14 0 10 0 04 0 35 17 783 0 32 0 48 0 16 0 35 18 302 0 43 0 64 0 21 0 35 18 836 0 56 0 83 0 28 0 35 19 387 0 71 0 69 0 02 0 35 19 953 0 61 0 48 0 13 0 35 Table C 1 8 SV 971A Free Fie...

Page 219: ...ics Directional response of SV 971A with the ACO 7152 microphone and SV 18A preamplifier for specified frequencies Typical total directional characteristics The round charts show the typical direction...

Page 220: ...SV 971A User Manual Appendixes 220 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz...

Page 221: ...SV 971A User Manual Appendixes 221 1000 Hz 1250 Hz 1600 Hz 2000 Hz 2240 Hz 2500 Hz...

Page 222: ...SV 971A User Manual Appendixes 222 2800 Hz 3150 Hz 3550 Hz 4000 Hz 4500 Hz 5000 Hz...

Page 223: ...SV 971A User Manual Appendixes 223 5600 Hz 6300 Hz 7100 Hz 8000 Hz 8500 Hz 9000 Hz...

Page 224: ...SV 971A User Manual Appendixes 224 9500 Hz 10000 Hz 10600 Hz 11200 Hz 11800 Hz 12500 Hz...

Page 225: ...3 3 16 4 14 4 40 5 73 11 800 0 12 0 38 0 69 1 18 1 83 2 60 3 13 3 82 4 63 5 45 12 500 0 15 0 73 1 28 1 54 2 37 3 31 4 12 4 81 5 65 6 24 f Hz 100 110 110 120 120 130 130 140 140 150 150 160 160 170 170...

Page 226: ...0 4 17 4 01 3 46 3 20 2 69 2 09 1 53 9 000 4 52 4 78 4 89 5 42 4 52 4 18 3 77 3 60 2 91 2 42 9 500 4 74 4 65 5 21 5 37 4 57 4 67 4 14 3 52 3 05 2 37 10 000 5 36 5 18 6 08 5 84 4 81 5 11 4 37 3 82 3 11...

Page 227: ...B dB 251 0 08 0 01 0 09 0 20 259 0 08 0 01 0 09 0 20 266 0 08 0 01 0 09 0 20 274 0 07 0 02 0 09 0 20 282 0 07 0 02 0 09 0 20 290 0 06 0 02 0 08 0 20 299 0 06 0 02 0 08 0 20 307 0 05 0 02 0 07 0 20 316...

Page 228: ...01 0 20 772 0 11 0 11 0 00 0 20 794 0 12 0 12 0 00 0 20 818 0 12 0 13 0 01 0 20 841 0 13 0 13 0 00 0 20 866 0 14 0 14 0 00 0 20 891 0 15 0 15 0 00 0 20 917 0 16 0 15 0 01 0 20 944 0 17 0 16 0 01 0 20...

Page 229: ...0 20 0 25 0 05 0 20 3 548 0 17 0 24 0 07 0 20 3 652 0 15 0 22 0 07 0 20 3 758 0 13 0 2 0 07 0 20 3 868 0 12 0 18 0 06 0 20 3 981 0 13 0 17 0 04 0 20 4 097 0 15 0 16 0 01 0 30 4 217 0 17 0 15 0 02 0 30...

Page 230: ...1 220 0 25 0 17 0 08 0 30 11 548 0 35 0 17 0 18 0 30 11 885 0 39 0 17 0 22 0 30 12 232 0 47 0 15 0 32 0 30 12 589 0 49 0 14 0 35 0 30 12 957 0 54 0 13 0 41 0 30 13 335 0 55 0 14 0 41 0 30 13 725 0 57...

Page 231: ...Directional response of SV 971A with the ACO 7152 microphone SV 18A preamplifier and SA 22 windscreen for specified frequencies Combined typical directional characteristics The round charts show the...

Page 232: ...SV 971A User Manual Appendixes 232 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz...

Page 233: ...SV 971A User Manual Appendixes 233 1000 Hz 1250 Hz 1600 Hz 2000 Hz 2240 Hz 2500 Hz...

Page 234: ...SV 971A User Manual Appendixes 234 2800 Hz 3150 Hz 3550 Hz 4000 Hz 4500 Hz 5000 Hz...

Page 235: ...SV 971A User Manual Appendixes 235 5600 Hz 6300 Hz 7100 Hz 8000 Hz 8500 Hz 9000 Hz...

Page 236: ...SV 971A User Manual Appendixes 236 9500 Hz 10000 Hz 10600 Hz 11200 Hz 11800 Hz 12500 Hz...

Page 237: ...9 1 56 2 09 3 05 3 97 4 96 5 35 6 39 11 800 0 08 0 28 0 57 1 08 1 93 2 47 3 46 4 34 5 08 6 25 12 500 0 07 0 55 1 03 1 55 2 35 3 35 4 27 5 03 6 18 7 48 f Hz 100 110 110 120 120 130 130 140 140 150 150...

Page 238: ...1 5 79 5 31 4 72 4 33 3 47 2 98 2 33 9 000 6 08 5 96 6 06 6 46 5 13 4 56 3 93 3 59 2 87 2 44 9 500 5 99 5 79 6 01 6 24 5 18 5 12 4 09 3 44 3 07 2 32 10 000 6 18 6 19 7 03 6 59 5 68 5 43 4 82 3 80 3 24...

Page 239: ...level of the linear operation range according to the Table C 1 12 2 Mechanical vibration with an acceleration of 1 m s parallel to the membrane of the microphone for the frequencies 31 5 Hz 63 Hz 125...

Page 240: ...7 76 4 63 8 72 2 65 5 A filter 29 9 30 4 38 8 67 9 64 2 60 5 72 2 66 7 C filter 62 2 58 8 64 3 76 4 72 9 63 8 72 2 65 4 Table C 1 13 Typical effect of vibration parallel to the plane of the microphone...

Page 241: ...guration with the SV 18A microphone preamplifier and ST 03 adapter with following settings measurement range Normal or Low path Menu Measurement Range see Chapter 4 6 Microphone compensation Off Field...

Page 242: ...ing from 14 1 VRMS C weighting to 4 467 VRMS C weighting from 31 6 VRMS Z weighting to 4 467 VRMS Z weighting Table C 2 2 Peak for the sinusoidal signal 1 kHz at reference conditions with SV 1A8 pream...

Page 243: ...analogue digital converter are both detected The overload indication appears when the input signal amplitude is 0 5 dB above the declared Peak measurement range Warm up time 1 min for 0 1 dB accuracy...

Page 244: ...lters characteristics Noise levels measured with SV 18A preamplifier equivalent impedance ST 03 and 50 BNC terminal Microphone compensation switched off Range Low A weighting 3 0 VRMS B weighting 3 0...

Page 245: ...SV 971A User Manual Appendixes 245 8 0 kHz 1 1 octave filter 4 0 kHz 1 1 octave filter 2 0 kHz 1 1 octave filter...

Page 246: ...SV 971A User Manual Appendixes 246 1 0 kHz 1 1 octave filter 500 Hz 1 1 octave filter 250 Hz 1 1 octave filter...

Page 247: ...SV 971A User Manual Appendixes 247 125 Hz 1 1 octave filter 63 0 Hz 1 1 octave filter 31 5 Hz 1 1 octave filter...

Page 248: ...1 octave filter 1 3 Octave filters 35 filters with centre frequencies from 8 Hz to 20 kHz base 10 meeting IEC 61260 1 2014 standard for Class 1 1 3 octave filters for 16 0 kHz 1 1 octave filter 1 3 o...

Page 249: ...SV 971A User Manual Appendixes 249 1 3 octave filters for 4 0 kHz 1 1 octave filter 1 3 octave filters for 2 0 kHz 1 1 octave filter 1 3 octave filters for 1 00 kHz 1 1 octave filter...

Page 250: ...SV 971A User Manual Appendixes 250 1 3 octave filters for 500 Hz 1 1 octave filter 1 3 octave filters for 250 Hz 1 1 octave filter 1 3 octave filters for 125 Hz 1 1 octave filter...

Page 251: ...SV 971A User Manual Appendixes 251 1 3 octave filters for 63 0 Hz 1 1 octave filter 1 3 octave filters for 31 5 Hz 1 1 octave filter 1 3 octave filters for 16 0 Hz 1 1 octave filter...

Page 252: ...SV 971A User Manual Appendixes 252 1 3 octave filters for 8 00 Hz 1 1 octave filter Typical electrical noise floor for the 1 1 and 1 3 octave filters in the SV 971A instrument...

Page 253: ...OF THE IMPLEMENTED DIGITAL FILTERS A filter Class 1 according to IEC 651 and IEC 61672 1 2013 A filter characteristics C filter Class 1 according to IEC 651 and IEC 61672 1 2013 C filter characteristi...

Page 254: ...SV 971A User Manual Appendixes 254 Z filter Class 1 according to IEC 61672 1 2013 Z filter characteristics...

Page 255: ...d as FAT32 Note The originally supplied Kingston Industrial memory card has been tested by SVANTEK and cards of this type are strongly recommended for use when the original card is going to be replace...

Page 256: ...ower consumption from the 6V source is approx 60 mA at 20 C So typical operating time from 4 x AAA alkaline batteries will be about 16 hours SV 971A can be also powered from the AAA Class rechargeable...

Page 257: ...position 1 negative A8 B8 SBU1 not used A9 B9 VBUS Bus power 5VDC 0 5V A10 B10 SSRXn2 not used A11 B11 SSRXp2 not used A12 B12 GND Ground return RS 232 interface optional The RS 232 interface option f...

Page 258: ...ies technologies Copies of the modules regional approvals certificates may be obtained from Svantek or Silicon Laboratories Declaration ID D033250 Controller Subsystem Qualified Design ID 88831 FCC an...

Page 259: ...e SAR evaluation limits are given in RSS 102 Issue5 BGM121N meets the given requirements when the minimum separation distance to human body is less than equal to 15 mm RF exposure or SAR evaluation is...

Page 260: ...dity Note See also Appendix F to learn how to assemble and disassemble the outdoor microphone kit Note Using SA 271A changes the frequency response and measuring ranges of SV 971A Please check the bel...

Page 261: ...0 1 kHz 29 137 29 137 29 137 36 137 29 137 29 137 29 137 32 140 55 140 4 kHz 29 138 29 136 29 136 36 137 29 138 29 136 29 136 32 141 55 139 8 kHz 29 136 29 134 29 134 36 137 29 136 29 134 29 134 32 13...

Page 262: ...29 134 29 134 32 139 55 137 12 5 kHz 29 132 29 131 29 131 36 137 29 132 29 131 29 131 32 135 55 134 Table C 5 5 Linear operating ranges for the Low measurement range and the Airport filter for the sin...

Page 263: ...0 800 Correction factors 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 31 0 31 0 12 0 19 0 12 0 12 Uncertainty IEC 62585 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25 0 25...

Page 264: ...nce angle Compensated Case Effect of SA 271A for 90 deg incidence angle Uncertainty IEC 62585 2012 Hz dB dB dB dB 251 0 01 0 03 0 34 0 25 259 0 02 0 03 0 22 0 25 266 0 02 0 04 0 27 0 25 274 0 02 0 05...

Page 265: ...0 08 0 25 649 0 08 0 03 0 10 0 25 668 0 09 0 08 0 14 0 25 688 0 09 0 08 0 13 0 25 708 0 09 0 05 0 10 0 25 729 0 10 0 02 0 08 0 25 750 0 10 0 01 0 05 0 25 772 0 11 0 01 0 04 0 25 794 0 11 0 01 0 05 0...

Page 266: ...0 51 0 25 2 441 0 88 0 04 0 58 0 25 2 512 0 97 0 09 0 64 0 25 2 585 1 07 0 08 0 70 0 25 2 661 1 17 0 04 0 52 0 25 2 738 1 28 0 07 0 48 0 25 2 818 1 39 0 13 0 52 0 25 2 901 1 49 0 04 0 62 0 25 2 985 1...

Page 267: ...94 0 56 2 96 0 35 8 913 1 93 0 26 3 35 0 35 9 173 1 95 0 26 4 06 0 35 9 441 1 99 0 15 4 07 0 35 9 716 2 05 0 58 3 43 0 35 10 000 2 11 0 41 3 73 0 35 10 292 2 15 0 23 4 58 0 35 10 593 2 19 0 19 4 32 0...

Page 268: ...g incidence angle Uncertainty IEC 62585 2012 Hz dB dB dB dB 251 0 02 0 08 0 14 0 25 259 0 02 0 06 0 11 0 25 266 0 02 0 07 0 12 0 25 274 0 02 0 07 0 11 0 25 282 0 02 0 07 0 11 0 25 290 0 02 0 07 0 11 0...

Page 269: ...2 0 11 0 04 0 04 0 25 794 0 12 0 05 0 05 0 25 818 0 12 0 04 0 05 0 25 841 0 13 0 01 0 02 0 25 866 0 13 0 05 0 05 0 25 891 0 13 0 06 0 07 0 25 917 0 14 0 07 0 07 0 25 944 0 14 0 04 0 04 0 25 972 0 15 0...

Page 270: ...0 25 3 350 0 94 0 06 0 06 0 25 3 447 0 94 0 21 0 08 0 25 3 548 0 94 0 08 0 05 0 25 3 652 0 93 0 05 0 19 0 25 3 758 0 90 0 21 0 34 0 25 3 868 0 86 0 02 0 09 0 25 3 981 0 81 0 03 0 15 0 25 4 097 0 76 0...

Page 271: ...788 1 68 7 55 7 65 0 35 17 278 3 09 9 58 9 72 0 35 17 783 4 90 11 56 11 88 0 35 18 302 7 64 14 24 14 67 0 35 18 836 11 71 18 49 19 05 0 35 19 387 17 18 24 74 25 45 0 35 19 953 22 54 30 56 31 17 0 35...

Page 272: ...esponse of SV 971A with the ACO 7152 microphone SV 18A preamplifier and SA 271A outdoor microphone kit for specified frequencies Combined typical directional characteristics The round charts show the...

Page 273: ...SV 971A User Manual Appendixes 273 250 Hz 315 Hz 0 deg 90 deg 0 deg 90 deg 400 Hz 500 Hz 0 deg 90 deg 0 deg 90 deg...

Page 274: ...SV 971A User Manual Appendixes 274 630 Hz 800 Hz 0 deg 90 deg 0 deg 90 deg 1000 Hz 1250 Hz 0 deg 90 deg 0 deg 90 deg...

Page 275: ...SV 971A User Manual Appendixes 275 1600 Hz 2000 Hz 0 deg 90 deg 0 deg 90 deg 2240 Hz 2500 Hz 0 deg 90 deg 0 deg 90 deg...

Page 276: ...SV 971A User Manual Appendixes 276 2800 Hz 3150 Hz 0 deg 90 deg 0 deg 90 deg 3550 Hz 4000 Hz 0 deg 90 deg 0 deg 90 deg...

Page 277: ...SV 971A User Manual Appendixes 277 4500 Hz 5000 Hz 0 deg 90 deg 0 deg 90 deg 5600 Hz 6300 Hz 0 deg 90 deg 0 deg 90 deg...

Page 278: ...SV 971A User Manual Appendixes 278 7100 Hz 8000 Hz 0 deg 90 deg 0 deg 90 deg 8500 Hz 9000 Hz 0 deg 90 deg 0 deg 90 deg...

Page 279: ...SV 971A User Manual Appendixes 279 9500 Hz 10000 Hz 0 deg 90 deg 0 deg 90 deg 10600 Hz 11200 Hz 0 deg 90 deg 0 deg 90 deg...

Page 280: ...0 48 0 50 0 35 2 240 0 04 0 13 0 24 0 27 0 37 0 60 0 61 0 47 0 52 0 48 2 500 0 01 0 05 0 16 0 39 0 54 0 53 0 56 0 61 0 48 0 50 2 800 0 03 0 19 0 47 0 63 0 68 0 77 0 78 0 80 0 89 0 77 3 150 0 10 0 40 0...

Page 281: ...1 50 8 500 2 94 2 80 2 50 2 06 1 48 1 42 1 45 0 73 1 41 1 38 9 000 2 75 2 75 2 09 1 82 1 11 0 97 1 04 0 98 0 95 0 85 9 500 3 37 3 08 2 58 2 27 1 39 1 11 1 18 0 85 0 86 1 03 10 000 3 57 3 35 3 18 2 59...

Page 282: ...0 0 05 0 04 0 03 0 02 0 01 0 00 800 0 13 0 11 0 08 0 05 0 02 0 01 1 000 0 04 0 01 0 00 0 00 0 01 0 01 1 250 0 14 0 14 0 11 0 07 0 02 0 01 1 600 0 22 0 16 0 12 0 07 0 04 0 01 2 000 0 47 0 37 0 19 0 10...

Page 283: ...Broadband Data Transmission Systems Harmonised standard for Electromagnetic Compatibility EN 61000 4 2 2009 Electromagnetic compatibility EMC Testing and measurement techniques Part 4 2 Electrostatic...

Page 284: ...frequency weighted sound pressure with the weighting filter W Sound pressure is expressed in pascals Pa t pW Instantaneous frequency and time weighted sound pressure with the weighting filter W and ti...

Page 285: ...ound level a function of time depends on the selected threshold level In case None option is selected t L t Ld In other cases when Threshold Level is not set to none and equal to 60 dB or up to 90 dB...

Page 286: ...weightings F S I symbols are LAF LAS LCF LCS etc 2 0 2 W p t p log 10 L L A C Z eq Time averaged equivalent continuous sound level Leq expressed in dB for frequency weightings A C Z symbols are LAeq...

Page 287: ...r Td 0 Te 0 Tn 0 e T 2 0 W e dt p t r T 1 log 0 1 dB 5 Le Lnight Lnight is calculated for Td 0 Te 0 Tn 0 n T 2 0 W n dt p t r T 1 log 0 1 dB 10 Ln Lde Lde is calculated for Td 0 Te 0 Tn 0 10 Le 10 Ld...

Page 288: ...uantity of noise received by the worker expressed as the percentage of the whole day acceptable value T 0 q L t L h 8 dt 10 T 100 DOSE c d D_8h Quantity of noise received by the worker during 8 hours...

Page 289: ...exposure for a worker during a workday Sound levels at or above the THRESHOLD LEVEL are averaged into the calculations relating to noise exposure TWA is calculated with no threshold level or with thre...

Page 290: ...L P The Ln is the certain boundary level surpassed by the temporary noise level values in not more than n of the observation period Example Let us assume that L35 is equal to 76 8 dB It means that du...

Page 291: ...nd upon the size of the room and the nature of the materials used in its construction The graphs below present the reverberation time nature in the case when only one frequency is emitted Fig 1 The ac...

Page 292: ...he EDT decay curve region is pointed out by markers t1 and t3 cf Fig 2 It is checked whether the selected decay curve region has proper dynamics for the EDT calculation L1 L2 10 dB L2 L3 noise margin...

Page 293: ...rve region is pointed out by markers t1 and t4 cf Fig 4 It is checked whether the selected decay curve region has proper dynamics to the RT 30 calculation L1 L4 5 30 dB noise margin It is recommended...

Page 294: ...ency band The most critical parameter of the omnidirectional sound source is emitted sound pressure level as it was mentioned in the beginning of the appendix The graphical illustration of the data re...

Page 295: ...path Menu Measurement RT60 Settings parameter The above graph shows that the proper setting of the Recording Time value is very important The registration time has to be long enough to acquire suffic...

Page 296: ...t back till point ts to allow recognising the beginning of the decay region In the SVAN xxx instruments this time is equal to the Time Step path Menu Measurement RT60 Settings parameter value multipli...

Page 297: ...upper cone 6 microphone protecting tube 7 anti bird spikes 8 windscreen SA 209 9 desiccator not included 10 M5x10 hex socket raised screw 11 washer 12 bottom 13 thread adapter not included Tools K 3mm...

Page 298: ...SV 971A User Manual Appendixes 298 O ring gasket locations inside...

Page 299: ...SV 971A User Manual Appendixes 299 F 2 ASSEMBLY OF SA 271A 1 Secure preamplifier A with the dummy microphone 2 and connect the cable C 2 Pull tube 1 over the cable...

Page 300: ...p halves 4 to the connector and insert O ring gasket 3 on the lightning signed place 4 Apply the upper conical part 5 on the preamplifier Note Do not use preamplifier without the dummy microphone It c...

Page 301: ...SV 971A User Manual Appendixes 301 5 Screw the tube on the cone by rotating the tube so as to not twist the cable 6 Replace the dummy microphone 2 with the microphone cartridge B...

Page 302: ...SV 971A User Manual Appendixes 302 7 Calibrate the complete system using SVANTEK acoustic calibrator 8 Install the microphone protection tube 6 Use the Allen key K as a pin at protecting tube orifice...

Page 303: ...SV 971A User Manual Appendixes 303 9 Mount windscreen 8 and the anti bird spikes 7 10 Slide the desiccator 9 inside the tube...

Page 304: ...Place the cable in the slot and connect the bottom part 12 by three screws 10 with washers 11 Use the Allen key K 12 Mount the completed system on the dedicated tripod or pole Use thread adapter 13 if...

Page 305: ...eplaced Take care when examining the foam as squeezing it too aggressively can damage the surface Colour of the silica gel used in the desiccator part 9 when it is dry is amber If colour of the silica...

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