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Svantek SV 973 User Manual

Sound level meter & sound exposure meter
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USER MANUAL
SV 973
CLASS 2
SOUND LEVEL METER
& SOUND EXPOSURE
METER
Copyright © 2020 SVANTEK.
Warsaw, 2020-12-18
Rev. 1.01
All rights reserved.

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  • Page 1 USER MANUAL SV 973 CLASS 2 SOUND LEVEL METER & SOUND EXPOSURE METER Copyright © 2020 SVANTEK. Warsaw, 2020-12-18 Rev. 1.01 All rights reserved.
  • Page 2 Information in this document is subject to change without notice and does not represent a commitment on the part of Svantek. Svantek provides this document “as is”, without warranty of any kind, either expressed or implied, including, but not limited to, its particular purpose. Svantek reserves the right to make improvements and/or changes to this manual, or to the products and/or the programs described in this manual, at any time.

  • Page 3: Table Of Contents

    INTRODUCTION ............................11 SV 973 ............11 OUND EVEL ETER OUND XPOSURE ETER NALYSER SV 973 ....................... 12 ENERAL FEATURES OF ......................... 12 CCESSORIES INCLUDED ........................13 CCESSORIES AVAILABLE ....................... 13 IRMWARE OPTIONS AVAILABLE GENERAL INFORMATION ........................14 ....................... 14 NSTRUMENT CONFIGURATIONS ..................
  • Page 4 SVAN 973 User Manual 4.5.2 Selecting results for logging – Logger Results ................38 4.5.3 Configuring Logger trigger – Logger Trigger ................38 4.5.4 Configuring signal recording – Wave Recording ................ 39 – R ......................42 EASUREMENT RANGE ANGE – C ..............
  • Page 5 SVAN 973 User Manual AUXILIARY SETTINGS – AUXILIARY SETUP ....................58 – L ..................58 ELECTING USER INTERFACE LANGUAGE ANGUAGE – F ..................58 ESTORING FACTORY SETTINGS ACTORY ETTINGS – C ......................59 OICE COMMENTS OMMENTS & L – L &...
  • Page 6 IN THE DATA FILE INTO THE INTERNAL FLASH DISC A.10 ........................117 ONTROL SETTING CODES APPENDIX B. DATA FILE STRUCTURES......................122 SV 973 ....................122 ENERAL STRUCTURE OF THE FILES ’ ..............141 TRUCTURE OF THE FILE CONTAINING RESULTS FROM LOGGER S FILE B.2.1.
  • Page 7 1/3 O ............181 PECIFICATION OF CTAVE AND CTAVE ANALYZER .............. 190 REQUENCY CHARACTERISTICS OF THE IMPLEMENTED DIGITAL FILTERS SV 973 ..................... 193 ISCELLANEOUS SPECIFICATION OF ......................198 ECLARATION OF ONFORMITY APPENDIX D. DEFINITIONS AND FORMULAE OF MEASURED VALUES ............199 ......................

  • Page 8: Index

    SVAN 973 User Manual INDEX Directory · 52 Display colour · 50 Display mode · 17, 45, 66 Display scale · 48, 68 Display settings · 45 1/1-octave · 26, 65 Dosimeter · 26, 69 1/3-octave · 26, 65 Dosimeter results · 71 Downloading ·...
  • Page 9 SVAN 973 User Manual Inactive parameters · 20 Noise margin · 73 Information screen · 20 Input/output · 14 Instantaneous spectrum · 68 Instrument settings · 54 Integration period · 32, 35, 65 One result view · 45 Integration period trigger · 41 Opening position ·...
  • Page 10 SVAN 973 User Manual SLM/Dosimeter results · 49 Troubleshooting · 78 Slope trigger · 40 Turn on · 20 Sound analyser · 11 Sound exposure meter · 11 Sound level meter · 11 Spectrum · 67 Spectrum settings · 66 ULT threshold level ·...

  • Page 11: Introduction

    50 dBA LEQ ÷ 141 dBA PEAK. Available exchange rates: 2, 3, 4, 5 and 6 ® The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by SVANTEK is under license. Other trademarks and trade names are those of their respective owners.

  • Page 12: General Features Of Sv 973

    • Audio events recording (option), trigger and continuous mode, 12 kHz and 24 kHz sampling rate, WAV format Note: SV 973 has two different dynamic ranges - one dedicated for the SLM functions (Level Meter, 1/1 Octave, 1/3 Octave and RT60) and another one dedicated for the Dosimeter function.

  • Page 13: Accessories Available

    Class 2 sound calibrator: 114 dB/1000 Hz • SP 75 RS232 interface option for SV 973 • SA 72 carrying case for SV 973 and accessories (waterproof) 1.5 F IRMWARE OPTIONS AVAILABLE • SF 973_PACK Level Meter including 1/1 & 1/3 octave analysis, audio recording •...

  • Page 14: General Information

    SVAN 973 User Manual 2 GENERAL INFORMATION 2.1 I NSTRUMENT CONFIGURATIONS The instrument's normal operating mode as SLM assumes operating with the microphone attached to the instrument and without a windscreen. Optionally the instrument can be operated with the windscreen attached to the microphone (see Appendix C for specification).

  • Page 15: Instrument Power

    Personal Computer) or fitting the microphone capsule. 2.2 I NSTRUMENT POWER SV 973 can be powered by one of the following sources: • Four AAA standard size batteries fitted internally. In the case of alkaline type, a new fully charged set can operate more than 20 h (6.0 V / 0.8 Ah).
  • Page 16 SVAN 973 User Manual The following control keys are located on the front panel of the instrument: • <ESC> • <Enter> • ▲,◄, ►, ▼ • <Shift> • <Start/Stop> The action given in (...) brackets denotes the second key function which is available after pressing it in conjunction (or in sequence) with the <Shift>...

  • Page 17: Working With Instrument

    SVAN 973 User Manual • change relationship between Y-axis and X-axis of plots, • program the Real Time Clock (RTC) and delayed run Timer. <Menu> The simultaneous pressing of the <ESC> and <Enter> keys opens the main Menu containing seven sections: Function, Measurement, Display, File, Instrument, Aux.

  • Page 18: Configuration Mode

    SVAN 973 User Manual 2.4.2 Configuration mode To configure a measurement or the instrument, use the menu, which is switched with the <Menu> key. The menu consists of different type of screens, which include main menu, sections, lists of options, lists of parameters, text editor screens, information screens etc.
  • Page 19 SVAN 973 User Manual Opening position After selecting a desired position in the menu list, press the <Enter> key to open it. After this operation, a new sub-menu, list of option, list of parameter or information screen appears on the display. <ENT>...

  • Page 20: Getting Started

    SVAN 973 User Manual • Use the ◄ / ► key to select a position of the character in the edited text. • Use the ▲ / ▼ key to change the existing character with another ASCII character. The subsequent digits, underline, upper case letters and space appear in the inversely displayed position after each press of said key.

  • Page 21: Description Of Icons

    SVAN 973 User Manual The Pause mode allows you to erase up to 30 last seconds of the measurement which may be useful if, for example, the measurement is temporarily disturbed by some sound that should not normally occur. To continue the measurement, press <Enter>. ◄...
  • Page 22 SVAN 973 User Manual Meanings of icons are as follows: “run” icon “SD card” icon is displayed when the SD- is displayed when the measurement is running, and the icon card memory is in operation and has free shape is changing from self to contoured. space.

  • Page 23: Overload And Underrange Detection

    SVAN 973 User Manual 2.7 O VERLOAD AND UNDERRANGE DETECTION Overload detector The instrument has the built-in overload detectors. Both A/D converter and input amplifier overload conditions are detected. The overload in the measurement channel (in its analogue part) and the overload of the analogue / digital converter are both detected.
  • Page 24 Files are saved in the directory, which was set as a working directory. The default working directory (after using Factory Settings function) is called SVANTEK. Note: During the measurement run with data logging to the logger file, the “logger” icon is displayed.

  • Page 25: Downloading And Uploading Files

    SVAN 973 User Manual 2.9 D OWNLOADING AND UPLOADING FILES All measurement and setup files stored in the instrument’s memory can be downloaded to the PC with the use of SvanPC++ or Supervisor software, which enables the user download and upload functions as well as data view and data processing options.

  • Page 26: Measurement Functions And Calibration - Function

    <Enter> to confirm the calibration results. A sound measurement cannot be in progress while the automatic calibration is being performed. Note: SV 973 has two different dynamic ranges - one dedicated for the SLM functions (Level Meter, 1/1 Octave, 1/3 Octave and RT60) and another one dedicated for the Dosimeter function.

  • Page 27: Calibration - By Measurement

    Note: The recommended factory calibration interval is 12 months for instruments to be confident in their continuing accuracy and compliance with the international codes. Please contact your local Svantek distributor for further details. Note: It is possible to perform so called “By Sensitivity” calibration by setting the calibration factor with the use of special command –...

  • Page 28: Last Calibration Record - Last Calibration

    SVAN 973 User Manual During the second calibration, the level of the calibration signal measured by the Dosimeter is displayed until the measured result stabilizes (the maximum difference between three consecutive 1-second LCeq results should be within 0.05 dB). After second calibration stop the screen with both calibration .

  • Page 29: History Of Calibrations - Calibration History

    If Auto Cal. is switched off, the user should enter this screen through the Menu. <ENT> Automatic calibration feature was implemented to make calibration as easy as possible and allow the user to perform calibration of SV 973 with minimum steps.
  • Page 30 SVAN 973 User Manual If the automatic calibration is switched on, the instrument, when it doesn’t perform the measurement, periodically compares the measured signal level (Running SPL for 1 second) with the reference calibration level and starts the calibration measurement if the stable SPL result is within ±5dB of the calibration level.

  • Page 31: Configuring Measurement Parameters - Measurement

    SVAN 973 User Manual 4 CONFIGURING MEASUREMENT PARAMETERS – Measurement The Measurement section combines elements related to measurement parameters configuration. To open the Measurement section, press the <Menu> key, select the Measurement position and press <Enter>. <ENT> The content of the Measurement list depends on the Interface mode (Simple...
  • Page 32 SVAN 973 User Manual Delay of measurement start The Start Delay parameter defines the delay period from the <Start/Stop> keystroke to the real start of the measurement (digital filters of the instrument constantly analyse the input signal even when the measurement is stopped). This delay period can be set from 0 second to 60 minutes.

  • Page 33: Setting Measurement Trigger - Measurement Trigger

    SVAN 973 User Manual Note: In case of the infinite integration period or infinite repetition cycles the measurement should be stopped manually with the <Start/Stop> key. Day time limits The Day Time Limits parameter defines the day and night time limits required by the local standards.
  • Page 34 SVAN 973 User Manual When a new measurement cycle begins (after pressing the <Start/Stop> key or automatically after previous measurement cycle stop) the instrument checks a trigger condition every 0.5 ms and starts 1-second integration if condition is met. After 1-second integration, the instrument repeats trigger condition checking every 0.5 ms starts...

  • Page 35: Setting Parameters For Profiles - Profiles

    SVAN 973 User Manual Speed of Source value changing This position appears when the Gradient+ trigger is chosen. The speed of the Source value changing (Gradient) can be set in the range from 1 dB/ms to 100 dB/ms. – P 4.3 S ETTING PARAMETERS FOR PROFILES ROFILES...

  • Page 36: Setting General Logging Parameters - Logger Setup

    SVAN 973 User Manual period, which is equal to Integration Period multiplied by Repetition Cycles or after stopping a measurement manually. Summary Results are saved in the same file with Logger Results. Blocks of summary results are recorded to the file in the end of every measurement cycle. The figure below illustrates principles of logging measurement results.
  • Page 37 SVAN 973 User Manual Splitting logger file The Log. Split position enables splitting the data logging into separate files. If Log. Split is Off the data will be logged in one logger file with the name defined in the Logger Name position. In other cases, registration will be carried out in separate files and the registration in the new file will start after expiration of integration period (Integr.

  • Page 38: Selecting Results For Logging - Logger Results

    SVAN 973 User Manual 4.5.2 Selecting results for logging – Logger Results In the Logger Results list, you can select results for three independent profiles, which will be logged in a logger file with the Logger Step. The list of logger results depends on the measurement function.

  • Page 39: Configuring Signal Recording - Wave Recording

    SVAN 973 User Manual Note: When logging is waiting for the level trigger the “level” icon appears alternatively with the „logger” icon. Source result Only one measured result (Source) can be used for checking trigger condition in the Level Meter mode, namely the instantaneous LEQ from the first profile (with appropriate filter and detector), which is denoted here as Leq(1).
  • Page 40 SVAN 973 User Manual Note: The Wave Recording function is optional and should be unlocked by entering the activation code in the text editor screen, opened by the ► key. Once unlocked this option will be available permanently. Slope trigger The Slope+ trigger starts a signal recording under the condition: rising value of the Leq result (Source) integrated by 0.5 ms passes above the threshold level (Level).
  • Page 41 SVAN 973 User Manual Note: When a signal recording is waiting for the level trigger the “level” icon appears alternatively with the grey „signal” icon. Gradient trigger The Gradient + trigger starts a signal recording for Rec. Time under the condition: the value of the Leq result (Source) averaged by 0.5 ms is greater than the threshold value (Level) the speed of this Source result changing (gradient) is greater than the gradient threshold (Gradient).

  • Page 42: Measurement Range - Range

    SVAN 973 User Manual Speed of source value changing Speed of triggering signal changing (Gradient) can be set in the range from 1 dB/ms to 100 dB/ms. Recording before trigger When the Pre Trigger parameter is switched on, the signal will be recorded before the first trigger.

  • Page 43: Setting Statistical Levels - Statistical Levels

    SVAN 973 User Manual The Field Compensation position enables you to set the compensation filter for sound measurements in the free- field (Free Field) or diffuse field (Dif. Field) conditions or disable it for laboratory tests. By default, it is set to Free Field.

  • Page 44: Example Of Timer Execution

    SVAN 973 User Manual In the positions: Monday, Tuesday, …, Sunday; you can select days in a week when measurements should start. The timer can be programmed for Max days ahead ( to 100) or without limitation (Inf) and during these days, the instrument refers to the time of the Real Time Clock (RTC).

  • Page 45: Configuring Data Viewing - Display

    SVAN 973 User Manual 5 CONFIGURING DATA VIEWING – Display The Display section contains elements for programming measurement result views and display parameters. The content of the Display list depends on the selected measurement function. To open the Display section, press the <Menu> key, select the Display position and press <Enter>.

  • Page 46: Three Profiles View

    SVAN 973 User Manual Changing measurement results The measurement result displayed in this view can be changed with the ◄ / ► key. ► One Result view fields 1. Result name for: • SLM, 1/1 Oct. and 1/3 Oct. functions: OVL, Lpeak, Lmax, Lmin, L, Leq, LE, Lden, LEPd, Ltm3, Ltm5, Ln, EX, SD •...

  • Page 47: Logger View

    SVAN 973 User Manual Field description of the 3 Profiles mode 1. Result for the first profile 2. Result for the second profile 3. Result for the third profile 4. Implemented weighting filter: A, C, Z or B and detector time constant: I (Impulse), F (Fast), S (Slow) when the detector is exponential or L when the detector is linear Changing measurement results...

  • Page 48: Running Spl View

    SVAN 973 User Manual Statistics view fields Cursor position Statistics plot Result name, active profile, LEQ detector (Linear, Fast, Slow or Impulse), used weighting filter name (A, C, Z or B) Value of the selected statistical level Ln and units (dB) The cursor position can be changed with the ◄...

  • Page 49: Selecting Measurement Results For Presentation - Measurement Results

    SVAN 973 User Manual Switching grid on/off The Grid position enables switching on or off the horizontal grid lines of the plot. => Switching automatic Y-scale adjustment on/off The Autoscale position switches on the automatic scale adjustment of the Y-axis. The adjustment is performed automatically right after the start of the measurement to suit the initial level of the input signal from the microphone.
  • Page 50 SVAN 973 User Manual There are two options of power saver function (Dim Mode). The screen may be switch off (Screen Off) or dimmed with different levels (Level 1, 2 or 3). In the case when any of these options is set, after a delay, set by parameters Dim Delay, from pressing any key the screen is dimmed or switched off.

  • Page 51: Managing Files - File

    SVAN 973 User Manual 6 MANAGING FILES – File The File section contains elements that enable managing measurement and setup files saved in the instrument’s memory. The memory structure and files saving methods are described in Chapter 2.8. To open the File section, press the <Menu> key, select the File position and press <Enter>.

  • Page 52: Assigning Directory For Data Files Saving - Working Directory

    SVAN 973 User Manual Changing directories To open a directory, select it and press the ► key. To return to the upper directory press the ◄ key. ► Creating new directory First position of the File Manag. list is New Dir., which enables creating the new directory.

  • Page 53: Deleting File/Directory - Delete

    SVAN 973 User Manual 6.1.4 Deleting file/directory – Delete To delete a file/directory from the file/directory list, select 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 <ENT>...

  • Page 54: Configuring Instrument - Instrument

    SVAN 973 User Manual 7 CONFIGURING INSTRUMENT – Instrument The Instrument section is mainly related to the configuration of the hardware components of the instrument. To open the Instrument section, press the <Menu> key, select the Instrument position and press <Enter>. <ENT>...

  • Page 55: Programming Keyboard Functions - Keyboard

    SVAN 973 User Manual When the instrument is powered from internal batteries the current battery voltage is displayed together with its approximate charging state in the graphical format. Select the correct type of batteries for the right detection of the charging state of the battery pack: Alkaline or Rechargeable.

  • Page 56: Usb

    SVAN 973 User Manual – USB 7.5 C ONFIGURING INTERFACE The USB position enables selecting transmission speed the USB interface. There are two options: Full 12Mbps or High 480Mbps. <ENT> – B 7.6 S WITCHING LUETOOTH LUETOOTH The Bluetooth position enables switching on/off Bluetooth and setting its PIN.

  • Page 57: Checking Instrument Properties - Unit Label

    <ENT> Note: The contents of the Unit Label should be always sent to the Svantek service department or official representative in case of any problems faced by the user during the instrument’s normal operation.

  • Page 58: Auxiliary Settings - Auxiliary Setup

    SVAN 973 User Manual 8 AUXILIARY SETTINGS – Auxiliary Setup Auxiliary Setup section provides additional functions that allow, for instance, customization of the device interface to a specific user requirement and are not directly related to the hardware components of the instrument.

  • Page 59: Voice Comments - Comments

    SVAN 973 User Manual – C 8.3 V OICE COMMENTS OMMENTS The Comments position enables defining the file name for the voice comments recording. This position is available only in the Advanced interface mode. You can record voice comments in all ►...
  • Page 60 SVAN 973 User Manual If Power Off is active, then in the case the measurement is in progress, any attempt to switch off the instrument will be warned "Measurement in progress". You should stop the measurement to be able to turn off the unit. When the measurement is completed the warning "Power Off"...

  • Page 61: Printing Reports - Report

    SVAN 973 User Manual 9 PRINTING REPORTS – Report The Report section enables configuring printed reports of the sound measurement results in the predefined format. To open the Report section, press the <Menu> key, select the Report position and press <Enter>. <ENT>...
  • Page 62 (any key should be pressed except <Shift>) and after pressing a key it returns to the Report list. Below is an example printout of the report. SVANTEK (C) SV 973 S/N:39039 2017-05-22 13:59:24 T:00:00:05...

  • Page 63: Selecting Printing Options - Options

    SVAN 973 User Manual – O 9.2 S ELECTING PRINTING OPTIONS PTIONS The Options position enables selecting profiles, results, statistics and spectra for the report. <ENT> You may include (Print) results for each profile (Profile x) or exclude them (Off) from the report.

  • Page 64: Selecting Spectra For The Report - Spectrum

    SVAN 973 User Manual – S 9.5 S ELECTING SPECTRA FOR THE REPORT PECTRUM The Spectrum position allows you to select essential bands of the Leq, Lmax, Lmin and Lpeak spectra for the report. <ENT> – P 9.6 P RINTER SETTINGS RINTER The Printer position enables setting the number of characters in the report lines.

  • Page 65: 10 1/1-Octave And 1/3-Octave Analyser

    SVAN 973 User Manual 10 1/1-OCTAVE AND 1/3-OCTAVE ANALYSER The instrument operates as a real time 1/1-octave or 1/3-octave analyser in a very similar way to the Level Meter. Moreover, 1/1-octave or 1/3-octave analysis is performed in parallel with the Level Meter measurements.

  • Page 66: Logging 1/1- Or 1/3-Octave Spectra - Logging

    SVAN 973 User Manual 10.2.2 Logging 1/1- or 1/3-octave spectra – Logging Spectra are always logged together with the Summary results in a logger file with Integration Period step. The first condition should be fulfilled, namely the Logger must be switched on (path: <Menu> / Measurement / Logging / Logger Setup / Logger: On).

  • Page 67: Presentation Of 1/1- Or 1/3-Octave Spectra

    SVAN 973 User Manual 10.3.1 Presentation of 1/1- or 1/3-octave spectra The Spectrum position in the Display Modes list becomes available for the 1/1 Octave and 1/3 Octave functions and enables/disables the spectrum view (Spectrum). <ENT> Spectrum view fields 1. Spectrum plot 2.

  • Page 68: Adjusting Spectrum Plot Scale - Display Scale

    SVAN 973 User Manual 10.3.2 Adjusting spectrum plot scale – Display Scale The Disp. Scale position allows you to change the scale of the spectrum plot and switch the grid and automatic scale adjustment on/off. <ENT> Scaling vertical axis The Dynamics position enables selecting the required scale dynamic range of the spectrum plot.

  • Page 69: Dosimeter

    SVAN 973 User Manual 11 DOSIMETER The instrument operates as a Dosimeter in a very similar way to the Level Meter and, in addition to SLM results, measures also basic dose parameters. This chapter describes Dosimeter specific settings. Note: One important difference is that in the SEM mode the instrument works in the different dynamic range than in the SLM mode (see Appendix C).

  • Page 70: Checking Measurement Range - Range

    SVAN 973 User Manual LEQ detector Following LEQ detectors are available in the instrument: Imp., Fast and Slow. Dosimeter specific parameters can be set in accordance with the OSHA HC (Occupational Safety and Health Administration - Hearing Conversation), OSHA PEL (Occupational Safety and Health Administration – Permissible Exposure Level) and ACGIH standards.

  • Page 71: Logging Time - History Results - Logger Results

    SVAN 973 User Manual Alarm is signalled on a special screen with flashing frame and Alarm text inside and exceeded profiles threshold. For example, with such settings, the alarm screen will look like this. To exit the alarm screen, press any key. =>...

  • Page 72: Reverberation Time Measurements - Rt60

    (A, C and Z weighted). Whole measurement process and calculations implemented in SV 973 fulfil the ISO 3382 standard. The reverberation time of the room can be obtained with the use of SV 973 by two measurement methods: Impulse Response Method (Impulse) and Interrupted Noise Method (Decay). The selection of the method depends on the type of the used sound source.
  • Page 73 SVAN 973 User Manual The Method parameter allows to choose the method for RT60 calculations: Decay or Impulse. Both methods are described in Appendix E. ► The Recording Time parameter defines the recording time of the measurement data (sound pressure level decay curve). Data registration starts in the moment of the trigger condition appearance.

  • Page 74: Starting Rt60 Measurements

    SVAN 973 User Manual 12.3 S RT60 TARTING MEASUREMENTS Measurements using Decay method Set parameters for Decay RT60 measurements. Most used setup is as presented below. • Method: Decay • Recording Time: Auto • Time Step: 10ms • Averaging: • Noise Mar.: 10.0dB •...

  • Page 75: Viewing Rt60 Results

    SVAN 973 User Manual Note: During collecting data all other sources of sound should be suppressed in the tested room to not affect the measurement results. 12.1 V RT60 IEWING RESULTS The RT60 measurement results for all 1/1 or 1/3-octave bands and three Total values are presented in a table form.

  • Page 76: Maintenance

    13 MAINTENANCE 13.1 B ATTERIES REPLACEMENT SV 973 is delivered with four AAA alkaline batteries, but the you may also use AAA rechargeable batteries. The “battery” icon shows the condition of the internal batteries. The instrument is not equipped with an internal charger; therefore, the rechargeable batteries can be charged only after removal them out of the instrument.

  • Page 77: Firmware Upgrade

    SVAN 973 User Manual 13.4 F IRMWARE UPGRADE SVANTEK is committed to continuous innovation path of development, and as such reserves the right to provide firmware enhancements based on user’s feedback. To update the instrument firmware: • Unpack the provided firmware package (provided as a suitable compressed file).

  • Page 78: Troubleshooting

    Chapter 13.3). • In case the reset does not help call your Local Authorized Distributor or Svantek Service Office. Should your SVANTEK professional measurement equipment need to be returned for repair or for calibration, please contact the service office at the following number or contact via the SVANTEK website.

  • Page 79: Glossary

    SVAN 973 User Manual 14 GLOSSARY 14.1 M ODES AND EASUREMENT UNCTIONS Name Description Screen Reference Function The menu section that enables selecting the Manual Measurement Function performing Calibration of the instrument. Measurement Type of calculations the instrument currently Manual Function performs: - Level Meter,...

  • Page 80: Calibration

    SVAN 973 User Manual RT60 Measurement Function enabling calculation of Manual reverberation time in 1/1-octave bands or 1/3- 3.1, octave bands including three total RMS levels (A, C and Z weighted). Two methods can be applied: Impulse Response Method and Interrupted Noise Method.

  • Page 81: Definitions Of Measured Results

    SVAN 973 User Manual Calibration List of calibration records which you can view by Manual History pressing the <Enter> key. 3.2.2 Clear History Operation that clears all calibration records. Manual 3.2.3 Post Calibration Feature that enables adding the new calibration Manual factor to some files already saved in the 3.2.4...
  • Page 82 SVAN 973 User Manual Lmax Maximal value of the time-weighted sound Appendix D pressure level at the exponential RMS detector output within the elapsed measurement time. The Max result for the 1 second period is equal to the Spl result. It is measured with frequency weighting A, C or Z and time weighting F, S, I and displayed as LAFmax, LASmax, LCFmax, LCSmax etc.
  • Page 83 SVAN 973 User Manual Statistical Noise Levels, the certain boundary level Appendix D surpassed by the temporary noise level values in not more than nn% of the observation period. Ln are calculated on the base of 100ms Leq results and renewed every second on the display as cumulated statistics over...
  • Page 84 SVAN 973 User Manual SEL8 SEL result corresponding to the integration time Appendix D equal to 8 hours. The SEL8 result is calculated on the base of the LEQ. Exposition represents amount Appendix D acoustical energy received by the worker. E_8h Exposition in 8 hours represents the amount of the Appendix D...

  • Page 85: Measurement Parameters

    SVAN 973 User Manual PrTWA Projected Time Weighted Average is calculated Appendix D from the measured LAV (taking THRESHOLD LEVEL into account) and the exposure time. Lc-a Leq that enhances the low-frequency components Appendix D of the sound signal. It is the result of subtracting an A-weighted LAeq from a simultaneously collected C-weighted Leq.
  • Page 86 SVAN 973 User Manual General General measurement settings: Start Delay, Manual Settings Start Sync., Integration Period, Repetition Cycles, RMS Integration and Day Time Limits. Start Delay Delay between pressing the <Start> key and the Manual start of measurement integration. Start Synch. Synchronization of the measurement/integration Manual start to the nearest full minute or hour of the...
  • Page 87 SVAN 973 User Manual Day Time Limits Definition of the day and night periods required by Manual local standards: 6–18h and 7–19h. These limits are used for the calculation of the L(den) function. Profiles Virtual broadband level meters, which calculate Manual the set of results with own weighting filter (Filter) 4.3,...
  • Page 88 SVAN 973 User Manual Field Digital filter that compensates the free-field (Free Manual Compensation Field) or diffuse field (Dif. Field) effects. Windscreen Digital filter that compensates the effect of the Manual SA 22 windscreen. Range Position that enables checking the linear operating Manual range for the sinusoidal signal.
  • Page 89 SVAN 973 User Manual Gradient + Type trigger that starts 1-second Manual measurement/ integration under the condition: value of the RMS result (Source) integrated during 0,5 ms is greater than the threshold level (Level) and the gradient of this Source is greater than the threshold level (Gradient).
  • Page 90 SVAN 973 User Manual Logging Screen that enables configuring saving of the Manual Summary Results, Logger Results waveform signal in files with the use of the next screens: Logger Setup, Logger Results, Logger Trigger and Event Recording. Logger Setup Screen that enables switching the logger function Manual on and setting the main logging parameters: 4.5.1...
  • Page 91 SVAN 973 User Manual Logger Results Screen in the Logging list enabling selecting Manual results that will be logged to the logger file as a 4.5.2 time-history with the Logger Step: Lpeak, Lmax, Lmin, Leq. For the 1/1 Octave and 1/3 Octave functions also spectra can be saved.
  • Page 92 SVAN 973 User Manual Post Trigger Period of additional logging after triggering Manual condition fulfilment. 4.5.3 Wave Recording Recording of the waveform signal in the wave file. Manual 4.5.4 Recording Switching on the signal recording: Continuous or Manual on trigger: Slope +, Slope -, Level +, Level -, 4.5.4 Gradient +, Trigger manual or Integr.
  • Page 93 SVAN 973 User Manual Gradient + Type of trigger that starts the signal recording for Manual Recording Time under the condition: value of the 4.5.4 LEQ result (Source) integrated by 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).
  • Page 94 SVAN 973 User Manual Trigger Period Time interval of checking the triggering conditions. Manual This parameter can be set as: Logger Step, 4.5.4 0.5 ms, 100.0 ms and 1 s. Gradient Threshold level of the source signal value speed Manual of changing (Gradient) for trigger condition 4.5.4 fulfilment.
  • Page 95 SVAN 973 User Manual Detector Type of integration of RMS based results for Manual 1/1 Octave and 1/3 Octave analysis: Linear, Fast 10.2.3 or Slow. Pause Automatic pause(s) in the Dosimeter mode, that Manual can be programmed based on absolute time. 11.2 Exposure Time Total time during working day in which the worker...
  • Page 96 SVAN 973 User Manual RT60 Settings Screen that enables setting the reverberation time Manual measurement parameters: Start Delay, Method, 12.2 Recording Time, Time Step, Averaging, Noise Mar., Octave, Freq. Range, Logger Name and Level. Start Delay Delay between pressing the <Start> key and the Manual start of the RT60 measurement.

  • Page 97: Isplay Parameters

    SVAN 973 User Manual Freq. Range Frequency range for RT60 calculations: 63Hz- Manual 4kHz (7 bands) and 63Hz-8kHz (8 bands) for 1/1- 12.2 octave; 50Hz-5kHz (21 bands) and 50Hz-10kHz (24 bands) for 1/3 octave. Logger Name Name of the Logger file in which data of the RT60 Manual analysis will be recorded.
  • Page 98 SVAN 973 User Manual 3 Profiles view View of three results on the display at the same Manual time. 5.1.2 Logger view View of time-history (logger) results. Manual 5.1.3 Statistics view View of statistics of sound results. Manual 5.1.4 Spectrum view View spectra: 1/1 Octave and 1/3 Octave.
  • Page 99 SVAN 973 User Manual Autoscale Toggle the automatic scale adjustment of the Y Manual axis. Measurement Screen that enables selecting Manual Results Sound Level Meter and/or Dose Meter results, which will be presented on the display. SLM Results Screen that enables selecting Manual...

  • Page 100: Instrument Parameters

    SVAN 973 User Manual Spectrum of Lmax results for the 1/1 Octave or Manual 1/3 Octave bands. 10.3.3 Spectrum of Lmin results for the 1/1 Octave or Manual 1/3 Octave bands. 10.3.3 Peak Spectrum of Lpeak results for the 1/1 Octave or Manual 1/3 Octave bands.
  • Page 101 SVAN 973 User Manual Instrument Section in the Main Menu that enables setting the Manual hardware components of the instrument in the screens: User Interface, Battery, Keyboard, Power Off, USB, Bluetooth, RS232, RTC and Unit Label. User Interface Screen, that allows to select the user interface - a Manual set of functions that are available for the user.

  • Page 102: Auxiliary Parameters

    SVAN 973 User Manual Position in the Instrument list that enables Manual selecting the transmission speed of the USB interface. There are two options: Full 12Mbps and High 480Mbps. Bluetooth Position in the Instrument list that enables Manual switching on/off Bluetooth and setting its PIN. RS232 Position in the Instrument list that enables Manual...
  • Page 103 SVAN 973 User Manual Factory Settings Restoration of the default settings of the Manual instrument. Comments Definition of the file name for recording of voice Manual comments. Leq & Lav Position in the Auxiliary Setup screen that enables Manual to control displaying of Leq and Lav results: Both or Mutually Exclusive.

  • Page 104: Appendix A. Remote Control

    SVAN 973 User Manual – Appendixes APPENDIX A. REMOTE CONTROL The USB 2.0 interface is the Type C serial interface working with 480 MHz clock which enables one to control remotely the unit. Its speed is relatively high, and it ensures the common usage of USB-C in most produced nowadays Personal Computers.
  • Page 105 SVAN 973 User Manual – Appendixes #1,U973,N1234,W1.01.1,Q0.01,M1,R1,F2:1,F3:2,F1:3,F2:4,F3:5,F1:6,J2:1,J3:2,J1:3,J3:4,J3:5,J1:6,f1 ,C1:1,C0:2,C2:3,C1:4,C0:5,C2:6,B0:1,B3:2,B15:3,b0,d1s,D10s,K5,L0,Y3,y0,XT0,XL100,XQ0,Xq0,XC 115:1,XC115:2,XC115:3,Xl115:1,Xl115:2,Xl115:3,XA0,XD-1:1,XD-1:2,XD-1:3,XD-1:4,XD-1:5,XD- 1:6,S0,T1,e480,c1:1,c1:2,c1:3,h0:1,h0:2,h0:3,x3:1,x3:2,x5:3,m0,s0,l100,O10,o0,t0; means that: • SV 973 is investigated (U973); • its number is 1234 (N1234); • software version number is 1.01.1 (W1.01.1); • calibration factor is equal to 0.01 dB (Q0.01);...

  • Page 106: Function #2 - Measurement Results Read - Out In The Slm Mode

    SVAN 973 User Manual – Appendixes • threshold level for PTC calculation in profile 3, is set to 115 dB (XC115:3); • threshold level for ULT calculation in profile 1, is set to 115 dB (Xl115:1); • threshold level for ULT calculation in profile 2, is set to 115 dB (Xl115:2); •...
  • Page 107 SVAN 973 User Manual – Appendixes In case of <profile> = 1, 2 or 3 the instrument sends results in the format defined as follows: #2 [,<aver>],<profile>,Xc,(...); where c is the value of the result X or question mark (?) if result X is not available; If no results are available the instrument will send: #2,?;...
  • Page 108 SVAN 973 User Manual – Appendixes overload flag (ccc equals to 0 or 1); time of the measurement (ccc – value in seconds); start date of the measurement in format dd/mm/yyyy (dd – day, mm – month, yyyy - year) start time of the measurement in format hh/mm/ss (hh –...

  • Page 109: Function #3 - Read Out Of Measurement Results In 1/1 Octave And 1/3 Octave Mode

    SVAN 973 User Manual – Appendixes #2,1,V0,T7,P124.39,R85.86,L(01)100.30,L(10)89.50,L(20)78.60,L(30)68.50,L(40)60.30,L(50)54.00 ,L(60)51.00,L(70)46.50,L(80)44.00,L(90)42.40; Note: All bytes of that transmission are ASCII characters. #3 – R A.4 F 1/1 O 1/3 O UNCTION OUT OF MEASUREMENT RESULTS IN CTAVE AND CTAVE MODE #3 function enables one to read out the current measurement results in 1/1 OCTAVE or 1/3 OCTAVE modes.

  • Page 110: Function #D - Read / Write The Data Files From The External Memory (Sd- Card )

    SVAN 973 User Manual – Appendixes where: index - first record, count - number of records in the catalogue. #4,1,fname; file containing the measurement results, size, #4,1,fname,?; #4,1,fname,offset,length; part of the file containing the measurement results, where: fname - name containing not more than eight characters, offset - offset from the beginning of the file, length - number of bytes to read, #4,4;...
  • Page 111 SVAN 973 User Manual – Appendixes <nB> number of bytes to read (an even number) <data> binary data. <count> directory size in bytes file name in format XXXXXXXX.YYY (XXXXXXXX – file name, YYY- file name <name> extension) <dirName> directory name <nBwr>...

  • Page 112: Function #5 - Statistical Analysis Results Read - Out

    SVAN 973 User Manual – Appendixes #D,m,?; - command cannot be executed 9) #D,f,<address>; function enables the user to delete directory and its contents (files and subdirectories): Response: #D,f; - command was executed #D,f,?; - command cannot be executed #5 – A.7 F UNCTION STATISTICAL ANALYSIS RESULTS READ...

  • Page 113: Function #7 - Special Control Functions

    SVAN 973 User Manual – Appendixes #7 – A.8 F UNCTION SPECIAL CONTROL FUNCTIONS #7 function enables the user to perform special control functions. Some of them should be used with the extreme care. #7 function formats are defined as follows: #7,AC;...
  • Page 114 SVAN 973 User Manual – Appendixes #7,BN; This function returns the number of logger files created to the current time in the format: #7,BN,ddddd; (ddddd - number of logger files in decimal format). #7,BS; This function returns battery state in %. If the instrument is powered from the USB interface – the function returns (-1).
  • Page 115 SVAN 973 User Manual – Appendixes #7,IM; This function returns mode of the interface in the format #7,IM,x; #7,KL,x; This function locks ( x = 1 ) or unlocks ( x = 0 ) keyboard and returns the following sequence of characters: #7,KL;...
  • Page 116 SVAN 973 User Manual – Appendixes – Milliseconds part of latitude, – Latitude direction: N, S, – Degree part of longitude, – Minutes part of longitude, – Seconds part of longitude, – Milliseconds part of longitude, – Longitude direction: E, W, –...

  • Page 117: Function #9 - Write - In The Data File Into The Internal Flash - Disc

    4 - current settings file, FILE_LENGTH length of the file in bytes, DATA binary content of the file. A.10 C ONTROL SETTING CODES The control setting codes used in the SV 973 instrument (the internal software revision 1.01.1) are given in the table below.
  • Page 118 SVAN 973 User Manual – Appendixes Table A.1. Control setting codes Group Group name Code description code U973 (read only) Unit type Nxxxx (read only) Serial number Wyyy yyy - revision number (read only) Software version Qnnnn:c nnnn - real number with the value of the calibration factor (-99.9 ...
  • Page 119 SVAN 973 User Manual – Appendixes 1:n - logger with Lpeak values in profile n 2:n - logger with Lmax values in profile n 4:n - logger with Lmin values in profile n 8:n - logger with Leq values in profile n 16:n - logger with LAV values in profile n 32:n - logger with LR15 values in profile n 64:n - logger with LR60 values in profile n...
  • Page 120 SVAN 973 User Manual – Appendixes Onnn - nnn gradient in dB/ms  (1  100) Measure Triggering gradient ennn - nnn time in minutes  (1  720) Exposure Time c1:p - 80 dB c2:p - 84 dB c3:p - 85 dB c4:p - 90 dB c5:p - 60 dB Criterion Level...
  • Page 121 SVAN 973 User Manual – Appendixes XT5 - LEVEL – XLnnn - nnn level in dB  (24  136) Logger Triggering level (TriggerLev) Logger Triggering - Number of records XQnn - nn number of records saved in the taken into account before the fulfilment logger before triggering...

  • Page 122: Appendix B. Data File Structures

    FILES Each file containing data from the SV 973 instrument consists of several groups of words. In the case of SV 973 (the internal file system rev. 1.01), there are two different types of files containing: • the results stored in the file in the instrument’s logger (cf. App. B.2);...
  • Page 123 Name Comment number [02, nn=specification’s length] 0xnn02 UnitNumberL unit number (LSB word) UnitType type of the unit: 973 – SV 973 SoftwareVersion software version: 101 SoftwareIssueDate software issue date DeviceMode mode of the instrument UnitSubtype subtype of the unit: 1 – SV 973...
  • Page 124 SVAN 973 User Manual – Appendixes Table B.1.4. Calibration settings Word Name Comment number [47, nn=header’s length] 0xnn47 type of calibration performed prior to measurement: 0 - none 1 - BY MEASUREMENT (manual) PreCalibrType 2 - REMOTE 3 - FACTORY CALIBRATION 4 - AUTOCALIBRATION PreCalibrDate date of calibration performed prior to measurement (cf.
  • Page 125 SVAN 973 User Manual – Appendixes 2 - 1/1 OCTAVE analyser, 3 - 1/3 OCTAVE analyser, 4 - DOSE METER measurement input type: MeasureInput 2 - Microphone measurement range: 1 - LOW Range 2 - HIGH calibration flags: b0 - if set to 1: calibration coefficient is used b1 - if set to 1: overload occurred b7,b6,b5: type of the result Lden 000 –...
  • Page 126 SVAN 973 User Manual – Appendixes 1 - Mutually exclusive (visibility depends of the EXCHANGE RATE parameter) compensating filter for microphones: MicComp 0 - switched off, 1 - switched on spectrum RMS detector type: 0 - LINEAR, SpectrumRMSDetector 1 - FAST, 2 - SLOW reserved Reserved...
  • Page 127 SVAN 973 User Manual – Appendixes Field Compensation: 0 – Off FieldCompensation 1 – Free Field 2 – Diffuse Field profile threshold level for ULT calculation 70 ÷ 140 dB (*10) UL Th. Level[0] the 1 profile threshold level for ULT calculation 70 ÷ 140 dB (*10) UL Th.
  • Page 128 SVAN 973 User Manual – Appendixes hh – hour mm – minute The end time of the pause no. 2 in format 0xhhmm: hh – hour PauseEnd[2] mm – minute Pause[3] Programmable pause no. 3. The start time of the pause no. 3 in format 0xhhmm hh –...
  • Page 129 SVAN 973 User Manual – Appendixes reserved TriggerFilter reserved BitsPerSample … Table B.1.8. LOGGER TRIGGER parameters Word Name Comment number [2C, nn=block’s length] 0xnn2C trigger mode: 0 - OFF, TriggerMode 4 - measurement on trigger LEVEL+, 5 - measurement on trigger LEVEL– source of the triggering signal: TriggerSource 0 - Leq(1) the Leq result from the first profile...
  • Page 130 SVAN 973 User Manual – Appendixes level of triggering: TriggerLevel 24 ÷ 136 dB (*10) gradient of triggering: TriggerGrad 1 dB/ms ÷ 100 dB/ms (*10) TriggerPre pretrigger time given in 10ms TriggerPost reserved sampling frequency given in 10Hz TriggerSampling recording time of single data block: 0 - recording to the end of measurement TriggerRecTime 1..28800 (sec)
  • Page 131 SVAN 973 User Manual – Appendixes 1 - Z, 2 - A, 3 - C 5 - B bits/sample: 16 BitsPerSample … Table B.1.12. Special settings for profiles Word Name Comment number [05, nn=block’s length] 0xnn05 [used_profile, profile’s mask] 0x0307 [06, mm=sub-block’s length] 0xmm06 detector type in the 1...
  • Page 132 SVAN 973 User Manual – Appendixes 1 - FAST, 2 - SLOW filter type in the 2 profile: 1 - Z, 2 - A, FilterP[2] 3 - C 5 – B 6 – LF logger contents in the 2 profile defined as a sum of: 0 - none, 1 - Lxpeak 2 - Lxymax...
  • Page 133 SVAN 973 User Manual – Appendixes … x - depends of the filter type for Peak result calculation in selected profile: A, C, Z, B (cf. Tab. B.1.12) x - depends of the filter type in selected profile: A, C, Z, B, LF (cf. Tab. B.1.12) y - depends of the detector type in selected profile: I (imp.), F (fast), S (slow) (cf.
  • Page 134 SVAN 973 User Manual – Appendixes Table B.1.14. Header of the statistical analysis Word Name Comment number [09, nn=block’s length] 0xnn09 0x0307 [03=number of profiles, 07=active profiles mask] [0A, mm=sub-block’s length] 0xmm0A NofClasses[1] number of classes in the first profile (120) BottomClass[1] bottom class boundary (*10 dB) in the first profile ClassWidth[1]...
  • Page 135 SVAN 973 User Manual – Appendixes Note: The current logger time step in seconds can be obtained from the formulae: T = BuffTSec + BuffTMillisec / 1000 Table B.1.16. Contents of the file from the logger Word number Name Comment 0..(BuffLength/2-1) result#1, result#2, ...
  • Page 136 SVAN 973 User Manual – Appendixes Result[1][11] reserved UnderRes[1] under-range value in the 1 profile 17..18 ULTime[1] reserved 19..20 PTC[1] reserved UnitFlags flags word for measurement cycle (definition in table B.1.6) EX[1] EX (Expected Value) in the 1 profile (*100 dB) SD[1] SD (Standard Deviation) in the 1 profile (*100 dB)
  • Page 137 SVAN 973 User Manual – Appendixes Result[3][8] Ltm3 value in the 3 profile (*100 dB) Result[3][9] Ltm5 value in the 3 profile (*100 dB) Result[3][10] reserved Result[3][11] reserved UnderRes[3] under-range value in the 3 profile 61..62 ULTime[3] reserved 63..64 PTC[3] reserved UnitFlags flags word for measurement cycle (definition in table B.1.6)
  • Page 138 SVAN 973 User Manual – Appendixes 17..18 ULTime[1] ULT value in the 1 profile (sec.) 19..20 PTC[1] PTC value in the 1 profile UnitFlags flags word for measurement cycle (definition in table B.1.6) EX[1] EX (Expected Value) in the 1 profile (*100 dB) SD[1] SD (Standard Deviation) in the 1...
  • Page 139 SVAN 973 User Manual – Appendixes Result[3][9] Ltm5 value in the 3 profile (*100 dB) Result[3][10] LAV value in the 3 profile (*100 dB) Result[3][11] TLAV value in the 3 profile (*100 dB) UnderRes[3] under-range value in the 3 profile 61..62 ULTime[3] ULT value in the 3...
  • Page 140 SVAN 973 User Manual – Appendixes number of 1/1 OCTAVE values: 10 (AUDIO BAND) NOct number of TOTAL values: 3 NOctTot 1/1 octave[i] value (*100 dB); i=1÷NOct+NoctTot (1÷13) 5÷20 Octave[i] … … … Table B.1.21. 1/3 OCTAVE analysis results (saved in Summary Results Record) Word Name Comment...

  • Page 141: Structure Of The File Containing Results From Logger

    SVAN 973 User Manual – Appendixes SubblockLength 2 * number of classes in the third profile + 2 2..3 Histogram[3][1] the first counter in the third profile 4..5 Histogram[3][2] the second counter in the third profile ....Table B.1.23. SETUP file Word Name Comment...

  • Page 142: The Contents Of The Files In The Logger

    SVAN 973 User Manual – Appendixes Header of the statistical analysis - cf. Tab. B.1.14. Header of the file from the logger - cf. Tab. B.1.15. Contents of the file from the logger - cf. Tab. B.1.16. and the description in B.2.1. B.2.1.

  • Page 143: Record With The State Of The Markers

    SVAN 973 User Manual – Appendixes y - depends of the detector type in selected profile: I (imp.), F (fast), S (slow) (cf. Tab. B.1.12) y - only for exponential detector's type (cf. Tab. B.1.6) (5) results of 1/1 OCTAVE analysis or 1/3 OCTAVE analysis if 1/1 OCTAVE analysis or 1/3 OCTAVE analysis was selected as the measurement function and the LOGGER was active (paths: [√] [√]...

  • Page 144: Record With Summary Results

    SVAN 973 User Manual – Appendixes <0xCAaa> in which: - size of records, bb cc dd ee ff gg hh ii - 8-bytes name of wave file name B.2.1.6. Record with Summary Results The format of the data frame is as follows: HS L (optional) L (optional) where:...

  • Page 145: Record With Name Of The Comment File

    (1 word) block length (1 word), expressed in words (4 + (number of samples)*1.5) samples of the measured signal (in the case of SV 973 each sample is written in three bytes; the recording starts with the least significant byte)

  • Page 146: Record With Gps Data

    SVAN 973 User Manual – Appendixes 0 - HS 1 - HE b10 - 1 b9 - 0 b8 - 0 b15÷b8 – HS (0xC4), HE (0xCC) b7÷b0 – length of the block B.2.1.9. Record with GPS data The value equal to -12288 (0xd000) denotes the undefined value. Word Name number...

  • Page 147: Structure Of The Setup File

    SVAN 973 User Manual – Appendixes B.3 S SETUP TRUCTURE OF THE FILE SvanPC file header - cf. Tab. B.1.1. File header - cf. Tab. B.1.2. Unit and software specification - cf. Tab. B.1.3. SETUP DATA - cf. Tab. B.1.23. File-end-marker - cf.

  • Page 148: Appendix C. Technical Specifications

    EVEL ETER IN THE STANDARD CONFIGURATION Statement of performance SV 973 working as SLM with all accessories meets requirements of IEC 61672:2013 for Class 2 Group X instruments. Configuration of the complete SLM in its normal mode of operation SV 973 including the ST 973 microphone (1/2", nominal sensitivity 11 mV/Pa)
  • Page 149 SVAN 973 User Manual – Appendixes Note: For the conformance electrical tests, the microphone compensation must be switched off (Microphone=Off)! Note: For the frequency response evaluation in the acoustic coupler the microphone compensation must be switched on (Microphone=On) and the Free-filed compensations must be switched off (Field Comp=Off).
  • Page 150 SVAN 973 User Manual – Appendixes Table C.2 Self-generated noise for different weighting filters Electrical *) Acoustical compensated Weighting filter Noise < 20 dB < 20 dB < 30 dB < 25 dB < 33 dB < 48 dB *) measured with the SL 973 microphone equivalent Special filters •...
  • Page 151 SVAN 973 User Manual – Appendixes Calibration Acoustical - with the SV 34B acoustic calibrator (or equivalent): • Calibration level 114.0 dB (equal to the calibrator pressure level - see calibration chart of the used calibrator) Note: The above levels correspond to 114 dB of calibrator’s sound pressure. If the calibrator has a different sound pressure than 114 dB, the calibration levels must be accordingly adjusted.
  • Page 152 Uncertainty 0.25 0.25 0,25 0.25 0.25 0.25 0.25 0.25 0.35 (IEC 62585:2012) Table C.4 Typical ST 973 and SV 973 frequency characteristics Frequency ST 973 Free Field SV 973 Free Field Compensated Uncertainty response compensated Case Effect (IEC 62585:2012) response...
  • Page 153 SVAN 973 User Manual – Appendixes Frequency ST 973 Free Field SV 973 Free Field Compensated Uncertainty response compensated Case Effect (IEC 62585:2012) response [Hz] [dB] [dB] [dB] [dB] -0.03 -0.01 0.02 0.25 -0.03 0.01 0.03 0.25 -0.03 0.00 0.03 0.25...
  • Page 154 SVAN 973 User Manual – Appendixes Frequency ST 973 Free Field SV 973 Free Field Compensated Uncertainty response compensated Case Effect (IEC 62585:2012) response [Hz] [dB] [dB] [dB] [dB] 1059 -0.17 -0.13 0.04 0.25 1090 -0.20 -0.06 0.13 0.25 1122 -0.63...
  • Page 155 1.80 0.35 10000 -3.19 -1.56 1.62 0.35 Table C.5 SV 973 combined free field corrections (ST 973 + Compensated Case Effect) with the use of the Bruel & Kjaer 4226 sound calibrator Frequency [Hz] [dB] 31.5 1000 2000 4000 8000...
  • Page 156 SVAN 973 User Manual – Appendixes Directional characteristics of SV 973 as SLM Directional characteristics show deviation of Leq measured at different incidence angle from the Leq measured at 0 deg incidence angle. Combined directional characteristics The round charts show the directional characteristic and the charts below shows errors for angles.
  • Page 157 SVAN 973 User Manual – Appendixes...
  • Page 158 SVAN 973 User Manual – Appendixes...
  • Page 159 SVAN 973 User Manual – Appendixes...
  • Page 160 SVAN 973 User Manual – Appendixes Table C.6 Directional response for SV 973 – Deviation from 0 deg in dB Angle [ f [Hz] 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100 0.00 0.01 -0.01 -0.02 -0.03 -0.05 -0.08...
  • Page 161 SVAN 973 User Manual – Appendixes 2800 -0.07 -0.22 -0.43 -0.55 -0.58 -0.73 -1.06 -1.14 -1.12 -1.50 3150 0.03 0.09 0.11 -0.12 -0.57 -0.87 -0.88 -1.12 -1.33 -1.32 3550 -0.08 -0.22 -0.27 -0.23 -0.12 -0.60 -0.88 -0.90 -1.07 -1.04 4000 0.02 0.07 0.07...
  • Page 162 SVAN 973 User Manual – Appendixes 4500 -2.06 -1.78 -1.80 -1.76 -1.64 -1.45 -1.48 -1.48 -0.96 -0.96 5000 -2.03 -1.77 -1.59 -1.66 -1.51 -1.74 -1.72 -1.60 -1.10 -0.85 5600 -2.38 -1.70 -2.05 -1.99 -2.06 -1.99 -1.98 -1.56 -1.02 -0.81 6300 -4.22 -3.64 -3.80...

  • Page 163: As Sound Exposure Meter

    IN THE STANDARD CONFIGURATION Statement of performance SV 973 working as SEM with all accessories meets requirements of IEC 61252 and IEC 61672:2013 for Class 2 Group X instruments. Configuration of the complete SEM in its normal mode of operation SV 973 including, ST 973 microphone (1/2", nominal sensitivity 1.8 mV/Pa)
  • Page 164 SVAN 973 User Manual – Appendixes Periodical test upper frequency 8 kHz Linear Operating Ranges Table C.7 Linear operating ranges for the sinusoidal signal and microphone sensitivity 1.8 mV/Pa AS/F BS/F CS/F ZS/F AeqT BeqT CeqT Cpeak [dB] = 2 s) from from from...
  • Page 165 SVAN 973 User Manual – Appendixes Special filters • Windscreen compensation filter improving the instrument frequency response in the free acoustic field when windscreen SA22 is mounted on the microphone (see C.3) RMS detector • “True RMS“ with Peak detection, Digital •...
  • Page 166 SVAN 973 User Manual – Appendixes Warm-up time 1 min. (for 0.1 dB accuracy) Typical stabilization time after change 1 hour in environmental conditions by 20C Time shift after completion of a < 1 sec measurement, before a measurement is shown Note: When the instrument is moved from a warm environment with high humidity, to a colder environment, care should be taken not to produce condensation inside...
  • Page 167 0.25 0.25 0,25 0.25 0.25 0.25 0.25 0.25 0.35 (IEC 62585:2012) Table C.10 Typical ST 973 and SV 973 frequency characteristics SV 973 Free Field Uncertainty ST 973 Free Field Compensated Frequency compensated response Case Effect (IEC 62585:2012) response [Hz]...
  • Page 168 SVAN 973 User Manual – Appendixes SV 973 Free Field Uncertainty ST 973 Free Field Compensated Frequency compensated response Case Effect (IEC 62585:2012) response [Hz] [dB] [dB] [dB] [dB] -0.03 -0.06 -0.04 0.25 -0.03 -0.06 -0.03 0.25 -0.03 -0.06 -0.04 0.25...
  • Page 169 SVAN 973 User Manual – Appendixes SV 973 Free Field Uncertainty ST 973 Free Field Compensated Frequency compensated response Case Effect (IEC 62585:2012) response [Hz] [dB] [dB] [dB] [dB] 1090 -0.13 -0.03 0.10 0.25 1122 -0.55 -0.44 0.12 0.25 1155 -0.40...
  • Page 170 -2.96 0.11 0.35 10000 -4.11 -2.77 1.33 0.35 Table C.11 SV 973 combined free field corrections (ST 973 + Compensated Case Effect) with the use of the Bruel & Kjaer 4226 sound calibrator Frequency [Hz] [dB] 31.5 1000 2000 4000...
  • Page 171 SVAN 973 User Manual – Appendixes Directional characteristics of SV 973 as SEM Directional characteristics show deviation of Leq measured at different incidence angle from the Leq measured at 0 deg incidence angle. Combined directional characteristics The round charts show the directional characteristic and the charts below shows errors for angles.
  • Page 172 SVAN 973 User Manual – Appendixes...
  • Page 173 SVAN 973 User Manual – Appendixes...
  • Page 174 SVAN 973 User Manual – Appendixes...
  • Page 175 SVAN 973 User Manual – Appendixes Directional response for SV 973 – Deviation from 0 deg in dB Table C.12 Angle [ f [Hz] 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100 0.01 0.01 0.01 0.01 -0.02 -0.06 -0.08...
  • Page 176 SVAN 973 User Manual – Appendixes 2800 -0.04 -0.18 -0.32 -0.40 -0.45 -0.68 -1.05 -1.10 -1.15 -1.55 3150 0.03 0.07 0.07 -0.24 -0.70 -0.91 -0.92 -1.21 -1.42 -1.41 3550 -0.09 -0.27 -0.28 -0.21 0.07 -0.63 -0.80 -0.78 -1.00 -1.00 4000 0.03 0.06 0.06...
  • Page 177 SVAN 973 User Manual – Appendixes 4500 -2.05 -1.65 -1.82 -1.79 -1.55 -1.48 -1.32 -1.31 -0.95 -1.01 5000 -2.25 -1.92 -1.39 -1.54 -1.46 -1.94 -1.74 -1.42 -1.25 -1.21 5600 -2.21 -1.53 -1.88 -1.88 -2.15 -1.58 -1.69 -1.73 -0.75 -0.82 6300 -4.23 -3.44 -3.74...

  • Page 178: Windscreen

    SVAN 973 User Manual – Appendixes C.3 E SA 22 FFECT OF THE WINDSCREEN Table C.13 SA 22 windscreen effect Uncertainty SA 22 Free Field Compensation SA 22 Compensated Frequency (IEC 62585:2012) response filter Effect [Hz] [dB] [dB] [dB] [dB] 0.20 -0.08 -0.01...
  • Page 179 SVAN 973 User Manual – Appendixes Uncertainty SA 22 Free Field Compensation SA 22 Compensated Frequency (IEC 62585:2012) response filter Effect [Hz] [dB] [dB] [dB] [dB] 0.20 0.00 -0.05 -0.05 0.20 0.01 -0.05 -0.04 0.20 0.01 -0.06 -0.05 0.20 0.02 -0.06 -0.04 0.20...
  • Page 180 SVAN 973 User Manual – Appendixes Uncertainty SA 22 Free Field Compensation SA 22 Compensated Frequency (IEC 62585:2012) response filter Effect [Hz] [dB] [dB] [dB] [dB] 0.20 2304 0.50 -0.43 0.07 0.20 2371 0.50 -0.43 0.07 0.20 2441 0.48 -0.43 0.05 0.20 2512...

  • Page 181: As Ctave And Ctave Analyzer

    IEC 61260-1:2014 standard for the pass band filters for the Class 1 instruments. For sound analysis, its accuracy results from the accuracy of the Sound Level Meter - see Chapters C.1 for specification. Note: Simultaneously to the frequency analysis SV 973 operates as a Sound Level Meter - see Chapters C.1 for specification.
  • Page 182 SVAN 973 User Manual – Appendixes 1.605 V 1.605 V 5 Hz ÷ 11.2 kHz with the Z filter (-3 dB) Measuring frequency range 31.5 Hz ÷ 8 kHz Centre Frequency Ranges for 1/1 Octave 20 Hz ÷ 10 kHz Centre Frequency Ranges for 1/3 Octave RMS detector •...
  • Page 183 SVAN 973 User Manual – Appendixes Built-in electric anti-aliasing filter ensuring correct sampling of the measured signal. Built-in antialiasing filter. On-chip digital filter of the analogue-to-digital converter, ensuring correct sampling of the measured signal. Pass band (-3 dB) 11.3 kHz Stop band 14.4 kHz Attenuation in the stop band...
  • Page 184 SVAN 973 User Manual – Appendixes 8.0 kHz 1/1 octave filter 4.0 kHz 1/1 octave filter 2.0 kHz 1/1 octave filter 1.0 kHz 1/1 octave filter...
  • Page 185 SVAN 973 User Manual – Appendixes 500 Hz 1/1 octave filter 250 Hz 1/1 octave filter...
  • Page 186 SVAN 973 User Manual – Appendixes 125 Hz 1/1 octave filter 63.0 Hz 1/1 octave filter 31.5 Hz 1/1 octave filter 1/3 Octave filters 28 filters with centre frequencies from 20 Hz to 10 kHz (base 10), IEC 61260- 1:2014 standard for Class 1.
  • Page 187 SVAN 973 User Manual – Appendixes 1/3 octave filters for 8.0 kHz 1/1 octave filter 1/3 octave filters for 4.0 kHz 1/1 octave filter 1/3 octave filters for 2.0 kHz 1/1 octave filter...
  • Page 188 SVAN 973 User Manual – Appendixes 1/3 octave filters for 1.00 kHz 1/1 octave filter 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 189 SVAN 973 User Manual – Appendixes 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 190: Frequency Characteristics Of The Implemented Digital Filters

    SVAN 973 User Manual – Appendixes C.5 F REQUENCY CHARACTERISTICS OF THE IMPLEMENTED DIGITAL FILTERS Z Filter: Class 2 according to the IEC 61672-1:2013 standard. A Filter: Class 2 according to the IEC 61672-1:2013 standard.
  • Page 191 SVAN 973 User Manual – Appendixes C Filter Class 2 according to the IEC 61672-1:2013 standard. “B” filter Class 2 according to the IEC 651...
  • Page 192 SVAN 973 User Manual – Appendixes “LF” filter according to EPA-93-F105-02-104 Low Frequency Noise Control Regulations...

  • Page 193: Miscellaneous Specification Of Msv 973

    4 MB flash memory and 2MB + 320 kB RAM memory. Memory card Internal 8 GB micro SD card. Microphone input The SV 973 microphone input uses USB-C connector: Microphone connector Table C.15 Pin out of the microphone connector ST 30 connector...
  • Page 194 SV 973 back cover (external view) with mini USB-C socket and Battery screw Interface USB Type C The SV 973 USB-C 2.0 interface enables remote control of the instrument and data transfer with the speed up to that attainable with 480 MHz clock.
  • Page 195 RS 232 interface (optional) The RS 232 interface option for SV 973 is provided by means of the SP 75 interface. It conforms to the EIA Standard RS 232C. It enables the user to programme remotely all instrument functions and the transmissions to and from the meter with the speed from 1200 bit/s to 115200 bit/s.
  • Page 196 SVAN 973 User Manual – Appendixes The instrument contains a wireless transmission module, BGM121 from Silicon Laboratories 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 and ISEDC This product contains an FCC and Industry Canada certified Bluetooth®...
  • Page 197 Compliance with EU Directives (see Chapter C.7) CE mark indicates compliance with RED Directive 2014/53/EU (see DECLARATION OF CONFORMITY): • Art 3.1a: Safety • Art 3.1b: Electromagnetic Compatibility • Art 3.2: Radio. Note: Electromagnetic compatibility is guaranteed only with the original accessories supplied by SVANTEK!

  • Page 198: Declaration Of Conformity

    SVAN 973 User Manual – Appendixes C.7 D ECLARATION OF ONFORMITY Manufacturer: SVANTEK Sp. z o. o Strzyglowska 81 04-872 Warszawa Address: Poland Kind of product: SOUND LEVEL METER Type: SV 973 Directive: Directive 2014/53/EU of The European Parliament and of The Council of 16...

  • Page 199: Appendix D. Definitions And Formulae Of Measured Values

    SVAN 973 User Manual – Appendixes APPENDIX D. DEFINITIONS AND FORMULAE OF MEASURED VALUES ASIC TERMS AND DEFINITIONS Current time period of the measurement in seconds. Last second of the measurement. Exposure time in seconds (time period during which a person is exposed to the action of noise).

  • Page 200: Efinitions And Formulas Of The

    SVAN 973 User Manual – Appendixes Threshold sound level set in the Threshold Level parameter. The available values are as follows: None, 60dB up to 90dB in 5 dB steps. Criterion sound level set in the Criterion Level parameter. The available values are form 60dB, up to 90dB in 5 dB steps.
  • Page 201 SVAN 973 User Manual – Appendixes   L(A/C/Z)peak Peak sound level expressed in dB, for     Peak frequency weightings A, C, Z, symbols are   LApeak, LCpeak and LZpeak. Peak sound level is calculated for the given T. ...
  • Page 202 SVAN 973 User Manual – Appendixes If <6h-18h> option is selected for the <Day Time Limits> in the instrument then: (day-time) starts from 6 am and ends at 6 pm, (evening-time) starts from 6 pm and ends at 10 pm, (night-time) starts at 10 pm and ends at 6 am.

  • Page 203: Efinitions And Formulas Of The Additional Osimeter Function Results

    SVAN 973 User Manual – Appendixes Statistical level is the certain boundary level Example: Let us assume that L35 is surpassed by the temporary noise level equal to 76.8 dB. It means that during values in not more than n% of the observation the measurements the noise level period 76.8 dB was exceeded in not more...

  • Page 204: Definitions And Formulas Of The Additional Running Leq Function Results

    SVAN 973 User Manual – Appendixes   The E result (Exposition) represents the  amount of the acoustical energy received by 3600 the worker. E_8h The E_8h result (Exposition in 8 hours)     represents the amount of the acoustical energy received by the worker during 8 hours.

  • Page 205: Statistical Levels - L N Definition

    SVAN 973 User Manual – Appendixes   LR60 60-minutes running Leq is the rolling (sliding)      Leq window for the last 60 minutes of 3600   − 3600 measurement (3600 seconds) moving with 1 second step Note: If the current time period of the measurement T is less then 60 minutes then LR60 result is undefined.
  • Page 206 SVAN 973 User Manual – Appendixes Example: Let us assume that L35 is equal to 76.8 dB. It means that during the measurements the noise level 76.8 dB was exceeded in not more than 35% of the observation period. The cumulative density function for the exemplary data is presented in Figure on the right side.

  • Page 207: Appendix E. Reverberation Time Calculations

    SVAN 973 User Manual – Appendixes APPENDIX E. REVERBERATION TIME CALCULATIONS E.1. I NTRODUCTION If an impulsive sound is generated in a room with reflecting boundaries, repeated reflections at the boundaries result in the rapid establishment of a more or less uniform sound field. This field then decays as the sound energy is absorbed by the bounding materials.

  • Page 208: Reverberation Time

    SVAN 973 User Manual – Appendixes using the slope coefficient of the decay curve. The type of the definition from which slope coefficient is calculated (EDT, RT 20, RT 30 or user defined) depends on the difference between levels L and L (the difference between background noise level and sound source level) of the decay curve and it depends on...
  • Page 209 SVAN 973 User Manual – Appendixes In case of the impulse method, the sound pressure level values between points t and t are approximated with the straight line (y = a · x + b) by the linear regression. The RT 20 value is calculated using the slope coefficient ‘a’...

  • Page 210: Description Of The Decay Curve Recording In Different Measurement Methods

    SVAN 973 User Manual – Appendixes linear approximation 5 dB [dB] 30 dB noise margin t [s] Fig 4. The RT 30 evaluation E.3. D ESCRIPTION OF THE DECAY CURVE RECORDING IN DIFFERENT MEASUREMENT METHODS ➢ DECAY method This RT 60 measurement method requires omnidirectional sound source which emits pink noise in appropriate frequency band.
  • Page 211 SVAN 973 User Manual – Appendixes The measurement time in this method consists of: • The time between markers t and t in which the omnidirectional sound source emits acoustic power and the SVAN xxx analyser measures the actual sound pressure level. •...
  • Page 212 SVAN 973 User Manual – Appendixes The graphical illustration of data registering in this method is presented in Figure 7. [dB] 10 dB t [s] trig registration time Fig 7. Data recording in the impulse method of the reverberation time evaluation The measurement time in this method consists of: •...

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