Svantek SVAN 979 User manual

USER MANUAL
SVAN 979
SOUND & VIBRATION
ANALYSER
Warsaw, 2021-05-28
Rev. 2.01
Copyright © 2021 SVANTEK.
All rights reserved.

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SVAN 979 User Manual
Note: Because of continuous product improvement SVANTEK reserves the right to make changes
to product specifications without notice. To download the most up to date User Manual please visit our web
site at www.svantek.com. This User Manual presents the firmware revision named 3.21.2.
The succeeding software revisions (marked with the higher numbers) can change the view of some displays
presented in the text of this manual.
WEEE Notice: Do not throw the device away with the unsorted municipal waste at the end of its
life. Instead, hand it in at an official collection point for recycling. By doing this you will help to preserve
the environment.
The software described in this manual is furnished under a license agreement and may be used only in
accordance with the terms of that agreement.
Copyright Notice
Copyright © 2021 Svantek Sp. z o.o.
All rights reserved.
Reproduction without permission is prohibited.
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Microsoft and Windows are registered trademarks of Microsoft Corporation.
The Bluetooth®word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.
Disclaimer
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.
Information provided in this manual is intended to be accurate and reliable. However, Svantek assumes no
responsibility for its use, or for any infringements on the rights of third parties that may result from its use.
This product might include unintentional technical or typographical errors. Changes are periodically made
to the information herein to correct such errors, and these changes are incorporated into new editions of
the publication.
Technical Support Contact Information:
web: www.svantek.com
e-mail: [email protected].pl

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SVAN 979 User Manual
CONTENTS
INDEX ....................................................................................................................................................................8
1INTRODUCTION............................................................................................................................................ 12
1.1 SVAN 979 AS SOUND LEVEL METER &ANALYSER................................................................................................. 13
1.2 SVAN 979 AS VIBRATION LEVEL METER &ANALYSER............................................................................................ 13
1.3 GENERAL FEATURES OF SVAN 979..................................................................................................................... 13
1.4 ACCESSORIES INCLUDED .................................................................................................................................... 14
1.5 ACCESSORIES AVAILABLE.................................................................................................................................... 14
1.6 FIRMWARE OPTIONS AVAILABLE .......................................................................................................................... 14
2GENERAL INFORMATION ............................................................................................................................. 15
2.1 MEASUREMENT CONFIGURATIONS AS SLM........................................................................................................... 15
2.2 MEASUREMENT CONFIGURATIONS AS VLM .......................................................................................................... 16
2.3 INPUT AND OUTPUT SOCKETS OF THE INSTRUMENT ................................................................................................. 16
2.4 CONTROL KEYS ON THE FRONT PANEL................................................................................................................... 18
2.5 WORKING WITH THE INSTRUMENT ...................................................................................................................... 20
2.5.1 Measurement mode............................................................................................................................ 21
2.5.2 Configuration mode ............................................................................................................................ 22
2.6 INSTRUMENT POWER........................................................................................................................................ 24
2.7 DEFAULT SETTINGS........................................................................................................................................... 25
2.8 DESCRIPTION OF ICONS ..................................................................................................................................... 26
2.9 SAVING DATA.................................................................................................................................................. 27
2.10 FILES DOWNLOADING AND UPLOADING ................................................................................................................ 32
2.11 ACTIVATION OF OPTIONAL FUNCTIONS ................................................................................................................. 32
3FUNCTIONS OF THE INSTRUMENT –FUNCTION............................................................................................ 34
3.1 SELECTING THE INSTRUMENT MODE –MODE ........................................................................................................ 34
3.2 MEASUREMENT FUNCTIONS OF THE INSTRUMENT –MEASUREMENT FUNCTION........................................................... 34
3.3 INSTRUMENT’S CALIBRATION –CALIBRATION......................................................................................................... 35
3.3.1 System Check ...................................................................................................................................... 36
3.3.2 Calibration by Sensitivity (Acoustic signal).......................................................................................... 36
3.3.3 Calibration by Sensitivity (Vibration signal) ........................................................................................ 37
3.3.4 Calibration by Measurement (Acoustic signal) ................................................................................... 37
3.3.5 Calibration by Measurement (Vibration signal).................................................................................. 38
3.3.6 History of performed calibrations –Last Calibration .......................................................................... 39
3.3.7 Erasing calibration records –Clear Calibr. History.............................................................................. 40
3.3.8 Automatic calibration –Auto Calibration ........................................................................................... 40
4CONFIGURING MEASUREMENT PARAMETERS –MEASUREMENT ................................................................ 42
4.1 SETTING UP GENERAL MEASUREMENT PARAMETERS –GENERAL SETTINGS .................................................................. 43
4.2 SETTING MEASUREMENT TRIGGER –MEASUREMENT TRIGGER .................................................................................. 45
4.3 SETTING PARAMETERS FOR PROFILES –PROFILES.................................................................................................... 47
4.4 DATA LOGGING –LOGGING ............................................................................................................................... 48
4.4.1 Setting logger general parameters –Logger Setup ............................................................................ 49
4.4.2 Selecting results for logging –Logger Results..................................................................................... 51
4.4.3 Selecting additional summary results for saving –Summary Results ................................................. 51
4.4.4 Configuring Logger trigger –Logger Trigger....................................................................................... 51
4.4.5 Setting markers –Marker Setup ......................................................................................................... 53
4.4.6 Configuring signal recording –Wave Recording................................................................................. 54
4.5 SETTING SPECTRA –SPECTRUM........................................................................................................................... 57
4.6 SELECTING MICROPHONE COMPENSATION –COMPENSATION FILTER.......................................................................... 57
4.7 SELECTING MEASUREMENT RANGE –RANGE ......................................................................................................... 58
4.8 SETTING WORKDAY EXPOSURE TIME –EXPOSURE TIME ........................................................................................... 58
4.9 SETTING STATISTICAL LEVELS –STATISTICAL LEVELS................................................................................................. 58
4.10 SETTING RPM MEASUREMENT –RPM MEASUREMENT.......................................................................................... 59
4.11 PROGRAMMING THE INSTRUMENT’S INTERNAL TIMER –TIMER ................................................................................. 59
4.11.1 Example of timer execution ................................................................................................................ 60

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SVAN 979 User Manual
4.12 ADVANCED ALARM FUNCTION –ALARMS.............................................................................................................. 61
5CONFIGURING DATA VIEWING –DISPLAY.................................................................................................... 62
5.1 ACTIVATION OF THE DISPLAY MODES –DISPLAY MODES .......................................................................................... 62
5.1.1 Running SPL view ................................................................................................................................ 63
5.1.2 One Result view................................................................................................................................... 63
5.1.3 Combined views .................................................................................................................................. 64
5.1.4 Logger view......................................................................................................................................... 66
5.1.5 Spectrum view..................................................................................................................................... 67
5.1.6 Statistics view...................................................................................................................................... 67
5.1.7 File information view .......................................................................................................................... 68
5.1.8 Meter Table view ................................................................................................................................ 68
5.1.9 GPS view.............................................................................................................................................. 68
5.1.10 Meteo view ......................................................................................................................................... 68
5.1.11 Signal Generator view......................................................................................................................... 69
5.2 ADJUSTING PLOT VIEWS –DISPLAY SCALE ............................................................................................................. 70
5.3 ADJUSTING LOGGER VIEW –LOGGER VIEW ........................................................................................................... 71
5.4 CONFIGURING DISPLAY BRIGHTNESS AND POWER SAVER –SCREEN SETUP ................................................................... 71
5.5 SETTING THE COLOUR THEME OF THE DISPLAY –THEMES ......................................................................................... 72
6MANAGING FILES –FILE ............................................................................................................................... 73
6.1 MANAGING INSTRUMENT’S FILES –FILE MANAGER ................................................................................................ 73
6.1.1 Assigning directory for data files saving –Set as Working Dir............................................................ 74
6.1.2 Opening files/directories –Open ........................................................................................................ 74
6.1.3 Copying files/directories –Copy.......................................................................................................... 75
6.1.4 Moving files/directories –Move ......................................................................................................... 75
6.1.5 Renaming files/directories –Rename ................................................................................................. 76
6.1.6 Viewing information about files/directories –Info ............................................................................. 76
6.1.7 Deleting files/directories –Delete....................................................................................................... 76
6.1.8 Erasing all files in a memory –Delete All ............................................................................................ 77
6.2 MANAGING THE SETUP FILES –SETUP MANAGER................................................................................................... 77
7CONFIGURING INSTRUMENT PARAMETERS –INSTRUMENT ........................................................................ 78
7.1 MEASUREMENT AUTO START –AUTO START ......................................................................................................... 78
7.2 CHECKING POWER –BATTERY ............................................................................................................................ 79
7.3 BLUETOOTH®ACTIVATION –BLUETOOTH .............................................................................................................. 79
7.4 INTERFACE PARAMETERS SETTINGS –COMMUNICATION PORTS................................................................................. 79
7.5 SETTING EXTERNAL POWER ON/OFF CONDITIONS –EXTERNAL POWER....................................................................... 80
7.6 SETTING GPS PARAMETERS –GPS...................................................................................................................... 80
7.7 SELECTING IEPE CURRENT SUPPLY –IEPE CURRENT............................................................................................... 81
7.8 PROGRAMMING KEYBOARD –KEYBOARD SETTINGS ................................................................................................ 81
7.9 CHECKING THE MODEM STATUS –MODEM STATUS ................................................................................................ 82
7.10 SETTING PARAMETERS OF I/O PORT –MULTIFUNCTION I/O..................................................................................... 82
7.11 SETTING MICROPHONE POLARISATION VOLTAGE –POLARISATION VOLTAGE................................................................. 84
7.12 SWITCHING ON/OFF THE REMOTE CONTROL MODE –REMOTE CONTROL MODE........................................................... 84
7.13 SETTING PARAMETERS OF THE SERIAL INTERFACE –RS232....................................................................................... 85
7.14 PROGRAMMING THE INSTRUMENT’S INTERNAL REAL TIME CLOCK –RTC.................................................................... 85
7.15 CHECKING THE INSTRUMENT'S VIBRATION –SELF VIBRATION.................................................................................... 85
7.16 ACTIVATING THE SIGNAL GENERATOR –SIGNAL GENERATOR .................................................................................... 86
7.17 REMOTE COMMUNICATION SETTINGS –WIRELESS TRANSFER ................................................................................... 86
7.17.1 Selecting network type –Network. ..................................................................................................... 86
7.17.2 Configuring data transfer –Data Transfer.......................................................................................... 87
7.17.3 Configuring modem basic settings –Modem ..................................................................................... 87
7.17.4 Configuring connections –Modem Connection .................................................................................. 88
7.17.5 Configuring SMS service - SMS Options .............................................................................................. 89
7.17.6 Configuring e-mail service –E-mail Settings....................................................................................... 90
7.17.7 Data transfer with Modbus protocol –Modbus.................................................................................. 91
7.18 INTRODUCING THE INSTRUMENT NAME –UNIT NAME............................................................................................. 91
7.19 CHECKING THE INSTRUMENT PROPERTIES –UNIT LABEL........................................................................................... 91

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SVAN 979 User Manual
8AUXILIARY SETTINGS –AUXILIARY SETUP .................................................................................................... 92
8.1 SELECTING THE USER INTERFACE LANGUAGE –LANGUAGE........................................................................................ 92
8.2 RESTORING THE FACTORY SETTINGS –FACTORY SETTINGS ........................................................................................ 92
8.3 SETTING THE REFERENCE LEVELS –REFERENCE LEVELS............................................................................................. 93
8.4 UNLOCKING RPM FUNCTION –RPM MEASUREMENT............................................................................................ 93
8.5 SETTING COEFFICIENTS OF THE USER FILTERS –USER FILTERS .................................................................................... 93
8.5.1 Parameters of the real time filters –Real Time Filters........................................................................ 93
8.6 SELECTING UNITS FOR VIBRATION RESULTS –VIBRATION UNITS................................................................................. 94
8.7 WARNINGS SETUP –WARNINGS......................................................................................................................... 94
9REPORTS PRINTING –REPORT...................................................................................................................... 97
9.1 PRINTING MEASUREMENT RESULTS –PRINT RESULTS .............................................................................................. 98
9.2 PRINTING STATISTICS OF SOUND MEASUREMENT RESULTS –PRINT STATISTICS ............................................................. 98
9.3 PRINTING USER FILTERS COEFFICIENTS –PRINT USER FILTERS ................................................................................... 99
9.4 SELECTING PRINT OPTIONS –OPTIONS ................................................................................................................. 99
10 1/1-OCTAVE –1/12-OCTAVE ANALYSER ................................................................................................. 100
10.1 SELECTING THE 1/1 OCTAVE –1/12 OCTAVE FUNCTION ...................................................................................... 100
10.2 CONFIGURING 1/1-OCTAVE –1/12-OCTAVE ANALYSER ........................................................................................ 100
10.2.1 General settings for 1/1-octave –1/12-octave analysis –General Settings..................................... 101
10.2.2 Selecting the measurement range for 1/1-octave - 1/12-octave analysis –Range .......................... 101
10.2.3 Logging of 1/1-octave - 1/12-octave spectra –Logging ................................................................... 101
10.2.4 Setting parameters of 1/1-octave - 1/12-octave analysis –Spectrum.............................................. 101
10.3 CONFIGURING 1/1 - 1/12 OCTAVE SPECTRA VIEWS.............................................................................................. 104
10.3.1 Presentation of 1/1 - 1/12 octave spectra ........................................................................................ 104
10.3.2 Adjusting scales of the spectrum plot –Display Scale....................................................................... 105
10.3.3 Selecting spectra to be viewed –Spectrum View.............................................................................. 106
10.3.4 Spectrum statistics ............................................................................................................................ 107
10.3.5 Changing spectrum type in Vibration modes –Spectrum Type ........................................................ 108
10.4 SETTING FILTER COEFFICIENTS FOR 1/1 OCTAVE -1/12 OCTAVE ANALYSIS –SPECTRUM BASED FILTER .......................... 109
11 FFT ANALYSER ........................................................................................................................................ 111
11.1 SELECTING FFT FUNCTION ............................................................................................................................... 111
11.2 CONFIGURING FFT ANALYSER........................................................................................................................... 111
11.2.1 General measurement settings of FFT analysis –General Settings .................................................. 111
11.2.2 Selecting measurement range for FFT analysis –Range................................................................... 111
11.2.3 Logging of FFT spectra –Logging...................................................................................................... 112
11.2.4 Setting parameters of FFT analysis –FFT.......................................................................................... 112
11.3 CONFIGURING FFT SPECTRA VIEW..................................................................................................................... 113
11.3.1 Presentation of FFT spectra .............................................................................................................. 113
11.3.2 Setting up the scale of spectrum plot –Display Scale....................................................................... 114
11.3.3 Selection of spectra to be viewed –Spectrum View.......................................................................... 115
11.3.4 Changing spectrum type in Vibration modes –Spectrum Type ........................................................ 116
12 REVERBERATION TIME MEASUREMENTS –RT60.................................................................................... 117
12.1 SELECTING THE RT 60 FUNCTION...................................................................................................................... 117
12.2 SETTINGS OF THE RT60 ANALYSIS ..................................................................................................................... 117
12.3 CONFIGURING RT60 VIEWS ............................................................................................................................. 119
12.4 START RT60 MEASUREMENTS.......................................................................................................................... 120
12.5 VIEWING OF RT60 RESULTS............................................................................................................................. 121
13 LOUDNESS MEASUREMENT –LOUDNESS ............................................................................................... 125
13.1 SELECTING THE LOUDNESS FUNCTION................................................................................................................. 125
13.2 VIEWING LOUDNESS RESULTS ........................................................................................................................... 125
14 STI CALCULATIONS –STIPA..................................................................................................................... 127
14.1 INTRODUCTION.............................................................................................................................................. 127
14.2 STI METHOD BACKGROUND ............................................................................................................................. 127
14.3 SELECTING THE STIPA FUNCTION...................................................................................................................... 127

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SVAN 979 User Manual
14.4 STIPA MEASUREMENT AND CALCULATION PROCESS.............................................................................................. 128
14.4.1 Measured results............................................................................................................................... 128
14.4.2 Project structure................................................................................................................................ 130
14.4.3 Averaging results .............................................................................................................................. 131
14.4.4 STIPA settings.................................................................................................................................... 131
14.4.5 Considering ambient noise distortions.............................................................................................. 133
14.4.6 STIPA measurements ........................................................................................................................ 134
14.5 DOWNLOADING FILES AND PROCESSING DATA...................................................................................................... 136
14.5.1 Measurement with BA Assistant....................................................................................................... 137
14.5.2 Direct measurement with SVAN 977A (without BA Assistant) .......................................................... 137
14.5.3 Presentation of STIPA results ............................................................................................................ 139
14.5.4 Changing background noise values................................................................................................... 140
14.5.5 Generating reports............................................................................................................................ 140
15 REMOTE CONTROL AND DATA PROCESSING TOOLS ............................................................................... 141
16 MAINTENANCE....................................................................................................................................... 142
16.1 POWERING OF THE INSTRUMENT....................................................................................................................... 142
16.2 MEMORY CARD EXTRACTION AND INSERTION....................................................................................................... 143
16.3 TRANSDUCERS............................................................................................................................................... 143
16.4 RESETTING THE INSTRUMENT............................................................................................................................ 144
16.5 FIRMWARE UPGRADE...................................................................................................................................... 144
16.6 PRESERVATION OF INTERNAL BATTERIES.............................................................................................................. 145
16.7 TRANSPORTATION AND STORAGE ...................................................................................................................... 145
16.8 CLEANING .................................................................................................................................................... 145
16.9 TROUBLESHOOTING........................................................................................................................................ 145
17 GLOSSARY .............................................................................................................................................. 146
17.1 MODES AND MEASUREMENT FUNCTIONS........................................................................................................... 146
17.2 CALIBRATION ................................................................................................................................................ 148
17.3 DEFINITIONS OF MEASURED RESULTS ................................................................................................................. 149
17.4 MEASUREMENT PARAMETERS .......................................................................................................................... 151
17.5 DISPLAY PARAMETERS..................................................................................................................................... 166
17.6 INSTRUMENT PARAMETERS .............................................................................................................................. 170
17.7 AUXILIARY PARAMETERS.................................................................................................................................. 179
APPENDIX A. REMOTE CONTROL ....................................................................................................................... 182
A.1. FUNCTION #1 –INPUT/OUTPUT OF THE CONTROL SETTING CODES ............................................................................... 182
17.8 A.2. FUNCTION #2 –READ OUT OF THE MAIN MEASUREMENT RESULTS.................................................................... 183
A.2.1. Read-out the profile results .................................................................................................................... 183
A.2.2. Read-out the RT60 results ...................................................................................................................... 185
A.2.3. Read-out the RPM results ....................................................................................................................... 185
A.2.4. Examples................................................................................................................................................. 186
17.9 A.3. FUNCTION #3 –READ OUT OF THE MEASUREMENT RESULTS IN 1/XOCTAVE OR FFT MODE ................................ 186
A.4. FUNCTION #4 –READ-OUT OF THE CONFIGURATION DATA FILES INTO THE EXTERNAL MEMORY (SD CARD /USB DISK).......... 187
A.5. FUNCTION #5 –STATISTICAL ANALYSIS RESULTS READ-OUT ......................................................................................... 188
A.6. FUNCTION #6 –REMOTE SETTING OF THE USER FILTERS ............................................................................................. 189
A.7. FUNCTION #7 –SPECIAL CONTROL FUNCTIONS......................................................................................................... 190
A.8. FUNCTION #9 –WRITE-IN OF THE CONFIGURATION DATA FILES INTO THE EXTERNAL MEMORY (SD CARD /USB DISK) ........... 190
A.9. FUNCTION #D –READ /WRITE THE DATA FILES FROM THE EXTERNAL MEMORY (SD CARD /USB DISK).............................. 191
A.6. FUNCTION #R –AUTOMATIC RESULTS TRANSMISSION DURING THE MEASUREMENT ......................................................... 192
A.10. CONTROL SETTING CODES................................................................................................................................... 201
APPENDIX B. DATA FILE STRUCTURES (REVISION 3.21) ...................................................................................... 229
B.1. DESCRIPTION OF BLOCKS OF PARAMETERS................................................................................................................ 229
B.2. DESCRIPTION OF LOGGER'S DATA BLOCKS................................................................................................................. 243
B.3. DESCRIPTION OF CYCLICAL RESULTS BLOCKS (SUMMARY RESULTS) ................................................................................ 248
B.4. DATE AND TIME (EXAMPLE DECODING PROCEDURE)................................................................................................... 257
APPENDIX C. TECHNICAL SPECIFICATIONS ......................................................................................................... 258

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SVAN 979 User Manual
C.1. SPECIFICATION OF SVAN 979 AS A SOUND LEVEL METER.......................................................................................... 258
C.1.1 Specification of SVAN 979 as SLM in the standard configuration ......................................................... 258
C.1.2 Effect of the SA 22 windscreen................................................................................................................. 282
C.1.3 Effect of the extension cable SC 93 .......................................................................................................... 284
C.1.4 Effect of the SA 279 Outdoor Protection Unit .......................................................................................... 291
C.2. SPECIFICATION OF SVAN 979 AS A VIBRATION LEVEL METER..................................................................................... 292
C.3. SPECIFICATION OF SVAN 979 AS 1/1 OCTAVE -1/12 OCTAVE ANALYSER ............................................................... 298
C.4. FREQUENCY CHARACTERISTICS OF THE IMPLEMENTED BROADBAND DIGITAL FILTERS......................................................... 313
C.4.1 Digital weighting filters implemented in sound modes ........................................................................... 313
C.4.2 Digital weighting filters implemented in vibration modes...................................................................... 315
C.4.5 Digital Real Time Filters implemented in SVAN 979 ................................................................................ 318
C.5. MISCELLANEOUS SPECIFICATION OF SVAN 979 ....................................................................................................... 325
C.6. SPECIFICATION OF THE SV 80 ACCELEROMETER........................................................................................................ 332
C.7. USING THE SA 279 OUTDOOR MICROPHONE PROTECTION UNIT................................................................................ 333
APPENDIX D. DEFINITIONS AND FORMULAE OF MEASURED VALUES................................................................. 356
D.1. SOUND LEVEL METER ..................................................................................................................................... 356
D.1.1 Basic terms and definitions (SLM mode)........................................................................................... 356
D.1.2 Definitions and formulas of SLM results ........................................................................................... 357
D.2. VIBRATION LEVEL METER ................................................................................................................................ 360
D.2.1 Basic terms and definitions (VLM mode) .......................................................................................... 360
D.2.2 Definitions and formulas of the VLM result ...................................................................................... 360
D.3. STATISTICAL LEVELS –LNN DEFINITION ................................................................................................................... 361
APPENDIX E. REVERBERATION TIME CALCULATIONS ......................................................................................... 363
E.1. INTRODUCTION................................................................................................................................................... 363
E.2. THE DEFINITION AND THE CALCULATION PROCESS OF THE RT 60 REVERBERATION TIME..................................................... 364
E.3. DESCRIPTION OF THE DECAY CURVE RECORDING IN DIFFERENT MEASUREMENT METHODS................................................... 366
APPENDIX F. SA 279 OUTDOOR MICROPHONE KIT ASSEMBLY GUIDE................................................................ 369
F.1. PART SET........................................................................................................................................................... 369
F.2. ASSEMBLY OF SA 279 ......................................................................................................................................... 371
F.3. IMPORTANT NOTES.............................................................................................................................................. 377

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SVAN 979 User Manual
INDEX
1
1/12-octave · 34, 100
1/1-octave · 34, 100
1/3-octave · 34, 100
1/6-octave · 34, 100
A
Acceleration · 107, 108, 116
Accelerometer · 144
Accelerometer sensitivity · 37
Accessories · 14
Alarm e-mail · 84
Alarm level · 84
Alarm pulse · 83
Alarm SMS · 84
Alarm source · 83
Alarms · 61
Analog Out · 82
APN · 89
Audio sampling · 54
Auto calibration · 40
Auto start · 78
Automatic file saving · 29, 31
Autoscale · 71, 106
Auxiliary settings · 92
Averaged spectrum · 106, 115
Averaging · 112
B
Band · 101, 112
Bark spectrum · 125
Battery · 24, 79
Bluetooth · 79
Brightness · 71
C
Calibration · 35
Calibration by measurement · 37, 38
Calibration by sensitivity · 36, 37
Calibration factor · 36, 37, 38
Calibration history · 39
Calibration level · 36, 37, 38
Calibration result · 37, 38
Cleaning · 145
Clear calibration history · 40
Combined view · 64
Communication ports · 79
Compensation filter · 57
Complex parameter · 23
Configuration mode · 22
Control keys · 15, 16, 18
Copying file · 75
D
Data port · 88
Data protocol · 87
Data transfer · 87
Day time limits · 45
Decay · 117
Decay method · 120
Default settings · 25
Deleting all files · 77
Deleting file · 76
Detector · 48
Diffuse field compensation · 57
Digital In · 82
Digital Out · 82
Direct sound · 34
Direct vibration · 34
Directory · 28, 74
Displacement · 107, 108, 116
Display mode · 21, 62, 104, 113
Display scale · 70, 105, 114
Display settings · 62
DNS server · 89
Downloading · 32
Dynamics · 70, 106, 114
DynDns server · 89
E
E-mail · 88, 90
Exponential integration · 44
Exposure time · 58
External battery · 24
External DC · 24
External power · 80
External trigger · 47, 56
F
Factory settings · 25, 92
Fast · 48
FFT · 34, 111, 112
FFT window · 112
File · 28, 74
File info view · 68
File information · 76
File manager · 28, 73
File name · 54
Files · 73
Filter · 48, 54, 103, 112
Firmware options · 14
Flat Top · 112
Free field compensation · 57
Frequency range · 118
Function · 34

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SVAN 979 User Manual
G
General settings · 43, 101, 111
GPRS · 86
GPS · 79, 80
GPS view · 68
Gradient · 47
Gradient trigger · 47
Grid · 71, 106, 115
H
Hanning · 112
Help information · 24
High range · 58
I
I/O active level · 83
I/O function · 83
I/O mode · 82
I/O polarisation · 83
Icons · 26
IEPE current · 81
Impulse · 48, 117
Impulse method · 120
Impulse response method · 117
Inactive position · 24
Infinite integration period · 43
Information screen · 23
Instantaneous spectrum · 106, 115
Instrument settings · 78
Integration period · 43, 48, 101, 111, 112
Integration period trigger · 56
Interface · 79, 85, 97
Internet configuration · 87
Interrupted noise method · 117
K
Kaiser-Bessel · 112
Keyboard · 15, 16, 18, 81
L
Language · 92
Level meter · 34
Level trigger · 46, 52, 55
Linear integration · 44
Lines · 112
List of options · 23
List of parameters · 23
Logger · 29, 30, 48, 49
Logger name · 50
Logger results · 51, 101, 112
Logger split · 50
Logger step · 48, 50, 101, 112
Logger trigger · 51
Logger view · 66, 71
Logging · 48, 101, 112
Loudness · 34, 125
Low range · 58
M
Main menu · 22
Maintenance · 142
Manual file saving · 30, 32
Marker · 53
Matrix of parameters · 23
Max spectrum · 51, 106, 115
Measurement function · 34
Measurement mode · 21
Measurement settings · 42
Measurement trigger · 45
Memory · 27
Menu position · 22
Meteo · 51
Meteo results view · 68
Meter results view · 68
Microphone · 143
Microphone polarisation · 84
Microphone sensitivity · 36
Min spectrum · 51, 106, 115
Modbus · 86, 91
Mode · 34
Modem · 82, 87
Modem connection · 88
Moving file · 75
Multifunction I/O · 82
Multiple timer · 59
N
NC spectrum · 107
Network · 86
Noise margin · 119
NR spectrum · 107
O
One result view · 63
Opening file · 74
Opening position · 22
Optional functions · 32
Outdoor airport compensation · 57
Outdoor environment compensation · 57
P
Post-trigger · 52
Power saver · 72
Powering · 24, 142
Preservation · 145
Pre-trigger · 52
Profiles · 47

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SVAN 979 User Manual
R
Range · 58, 101, 111
Real-time clock · 85
Real-time user filters · 93
Reconnection · 88
Recording on trigger · 54
Recording time · 55, 56, 118
Rectangle · 112
Reference levels · 93
Registration port · 88
Remote control · 84, 141
Renaming file · 76
Repetition cycles · 44, 48, 101, 111
Report · 97
Reset · 144
Resolution · 70, 106
Results file · 30
Results presentation · 21
Results view · 62, 104, 113
RMS detector · 104
RMS integration · 44
Rolling time · 45
RPM measurement · 59, 93
RS232 · 79, 85, 97
RT averaging · 122
RT integrated data · 119
RT method · 118
RT octave · 118
RT raw data · 119
RT smoothed data · 119
RT smoothing · 118
RT step · 118
RT60 · 34, 117
RT60 settings · 117
RT60 view · 119, 121
RTC · 85
Running SPL · 20, 63
S
Save setup · 77
Scale · 70, 105, 114
Screen dim · 72
Screen setup · 71
Screen themes · 72
SD card · 27, 143
Self-vibration · 85
Serial port · 79
Server address · 88
Setup file · 32
Setup manager · 28, 77
Signal generator · 86
Signal generator view · 69
Signal recording · 54
Sim authentication · 88
Single timer · 59
Slope trigger · 46, 55
Slow · 48
SMS · 88, 89
Sound analyser · 13
Sound level meter · 13
Sound meter · 34
Source type · 83
Spectrum · 57, 101, 104, 113
Spectrum based user filters · 109
Spectrum statistics · 51
Spectrum table · 105
Spectrum type · 107, 108, 116
Spectrum view · 67, 104, 106, 113, 115
Speech intelligibility · 127
Start delay · 43
Start measurements · 21
Start synchronisation · 43
Statistical levels · 58
Statistics · 45, 51
Statistics view · 67
STIPA · 127
Storage · 145
Summary results · 30, 48, 50, 51, 101, 112
Svantek mail · 90
System check · 36
T
TCP · 88
Text editor · 23
Timer · 59
Tonality · 34
Total value · 100
Transducers · 143
Trigger · 45, 51, 56
Trigger level · 47, 52
Trigger on marker · 54
Trigger period · 55, 56
Trigger pulse · 83
Trigger source · 47, 56
Troubleshooting · 145
Turn on · 20
U
Unit label · 91
Unit name · 91
Upgrade · 144
Uploading · 32
USB · 24
USB device · 79
USB disk · 27
USB host · 79
User filters · 93, 109
User Total · 100, 109
V
Velocity · 107, 108, 116
Vibration analyser · 13
Vibration level meter · 13
Vibration meter · 34
Vibration units · 94
W
Warnings · 94
Wave file · 31

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SVAN 979 User Manual
Wave format · 54
Wave recording · 54
Wave trigger · 54
Windscreen compensation · 57
Wireless transfer · 86
Working directory · 74

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SVAN 979 User Manual
1 INTRODUCTION
The SVAN 979 is all digital, Class 1 Sound & Vibration level meter (SLM and
VLM) as well as a real time 1/1, 1/3 octave analyser. The instrument is designed
for general acoustic and vibration measurements, environmental monitoring,
occupational health and safety monitoring.
Three acoustic or vibration user configurable profiles allow parallel
measurements with independently defined frequency filters and RMS detector
time constants. Each profile provides a significant number of results (like Spl,
Leq, Sel, Lden, LEPd, Ltm3, LTeq, Peak,Max and Min as well as ten statistics,
two rolling Leq, expected Leq value, standard Leq deviation and noise criterium
and noise ratio indexes in case of sound measurements or RMS,Ovl, Peak,
P-P,MTVV in case of vibration measurements). Advanced time history logging
for each profile provides complete information about the measured signal using
the external SD card or USB Memory Stick and can be easily downloaded to any
PC using the USB interface and SvanPC++ software.
All required weighting filters: A, B, C, G, Zfor sound measurements and HP1,
HP3,HP10,Vel1,Vel3,Vel10,VelMF,Dil1,Dil3,Dil10 and Wh for general
vibration measurements (like acceleration, velocity and displacement); are
available with this instrument.
Standard version of SVAN 979 is equipped with 1/1 and 1/3 octave real-time
analysis as well as FFT. In the sound level meter mode, the statistical analysis
in 1/1 or 1/3 octaves is also available. Frequency analysis is an essential tool for
sound & vibration engineers. Depending on an application it can be more or less
detailed. For advanced applications that require the narrow band frequency
analysis, SVAN 979 offers options of the 1/6 or 1/12 octave real-time analysis.
The frequency analysis is a critical tool in building acoustics measurements.
Depending on the application, frequency analysis can be done in 1/1 octave or
1/3 octave spectra. SVAN 979 records the time history of spectra with
milliseconds logging step. It enables one to calculate RT60 results as well as
sound insulation results. Additionally, SVAN 979 offers the functionality of a
signal generator which is capable of generating pink noise, white noise or a
selected sine wave. The signal generator works together with the RT 60 function
which is calculated in 1/1 or 1/3 octave bands.
SVAN 979 enables STIPA calculations in accordance with IEC 60268-16:2011.
Another feature of SVAN 979 is a time signal recording, which stands for a
recording of the raw signal samples with defined frequency up to 48 kHz.
Analysis of the raw signal is used whenever frequency analysis is not sufficient.
Postprocessing of wave files such as calculation of tonality is available in the
SvanPC++ software. Time signal is recorded in a wave format which means that
it can be played back in the PC software and used for noise source recognition
(audio recording).
A fast USB 1.1 interface (12 MHz) creates a real time link for the PC "front-end" application using the SVAN 979.
The USB Host functionality is also available. The USB Host controller installed in the instrument enables the
user to connect this meter to USB memory sticks, USB hard disks, USB printers etc. With the use of optional
interfaces (RS 232, Bluetooth®1or IrDA) the instrument can be remotely controlled from the PC or smartphone.
Measurement results can be downloaded to the PC using all the interfaces mentioned above.
Working as a part of SV 279 PRO monitoring station, equipped with 3G modem, SVAN 979 can transfer
measured data via Internet to PC with the use of SvanPC++_RC option or via SvanNET web service. The
instrument can be fully remotely controlled via these interfaces. The instrument has advanced alarms features,
that enables the user notification about exceeded threshold levels by SMS or mails.
The instrument is powered from four AA standard alkaline or rechargeable batteries (i.e. NiMH - separate
charger is required). Powering the instrument from an External DC power source or the USB interface is also
possible.
1
“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.

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SVAN 979 User Manual
1.1 SVAN 979AS SOUND LEVEL METER &ANALYSER
•Noise measurements (Peak, Max, Min, Spl, Leq, SEL, Lden, LEPd, Ltm3, LTeq, Leq statistics (Ln),
expected Leq value (EX), standard Leq deviation (SD), two rolling Leq (LR1 and LR2), measurement
time and overload time % (OVL) as well as noise criterium (NC) and noise ratio (NR) in case of 1/1
Octave option) with Class 1 IEC 61672-1:2013 accuracy in the frequency range 3.15 Hz to 20 kHz with
the GRAS 40AE microphone.
•Parallel Impulse, Fast and Slow detectors for the measurements with A, B, C, G, Zfrequency filters.
•Two measurement ranges 22 dB RMS(A) ÷ 123 dB Peak (Low) and 30 dB RMS(A) ÷ 140 dB Peak
(High).
•1/1 Octave (15 filters with centre frequencies 1 Hz ÷16 kHz), 1/3 Octave (45 filters with centre
frequencies 0.8 Hz ÷ 20 kHz) and optional 1/6 Octave (90 filters with centre frequencies 0.73 Hz ÷
21.4 kHz) and 1/12 Octave (180 filters with centre frequencies 0.71 Hz ÷ 22 kHz) real time analysis, in
accordance with Class 1 IEC 61260-1:2014.
•STIPA (speech transmission index for public address systems) measurements of electro-acoustic and
acoustic environments effects that affect the speech intelligibility in the room acoustics and/or public
address systems.
•Optional reverberation time RT60 analysis function for 1/1 octave bands or 1/3 octave bands and three
total RMS levels (A, Cand Zweighted) in accordance with the ISO 3382 standard.
•Optional Loudness and Tonality functions.
1.2 SVAN 979AS VIBRATION LEVEL METER &ANALYSER
•General Vibration measurements (acceleration, velocity and displacement) meeting ISO 20816-1:2016
standard in the frequency range depending on the parameters of the attached accelerometer, i.e. with
SV 80 general purpose transducer is equal to 0.5 Hz ÷ 14 kHz.
•Parallel RMS, Max, Peak, Peak–Peak, MTVV measurements.
•Z, HP1, HP3, HP10, Vel1,Vel3,Vel10,VelMF,Dil1,Dil3,Dil10 and Wh weighting filters.
•1/1 Octave (15 filters with centre frequencies 1 Hz ÷16 kHz), 1/3 Octave (45 filters with centre
frequencies 0.8 Hz ÷ 20 kHz) and optional 1/6 Octave (90 filters with centre frequencies 0.73 Hz ÷
21.4 kHz) and 1/12 Octave (180 filters with centre frequencies 0.71 Hz ÷ 22 kHz) real time analysis, in
accordance with Class 1 IEC 61260-1: 2014.
•Optional RPM measurement with the use of RPM probe, connected to the I/O socket of SVAN 979.
•FFT analysis with the single Total overall value, performed with preselected frequency weighting filters
and screens.
1.3 GENERAL FEATURES OF SVAN 979
•Advanced Data Logger function including spectrum logging on the micro SD card or USB Memory
Stick providing almost unlimited logging capacity
•1/1 ÷ 1/12 octave and FFT analyser (1/6 and 1/12 octave – optionally)
•Time domain waveform signal recording (optionally)
•Advanced trigger and alarm functions
•USB 1.1 Host & Client interface (real time PC "front end" application supported)
•RS 232 (optionally) and Bluetooth®(as standard) interface
•Integration time programmable up to 24 h
•Power supply by four AA rechargeable or standard alkaline batteries
•Hand held, light weight and robust case
•Easy to use with menu driven user interface

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SVAN 979 User Manual
1.4 ACCESSORIES INCLUDED
•GRAS 40AE prepolarised ½” microphone with nominal sensitivity 50 mV/Pa
•SV 17 microphone preamplifier with 7 pin Lemo connector
•SA 22 foam windscreen
•SC 16 USB type A to USB type B cable
•SC 59 I/O cable
•SA 33 power supply
•SA 31 charger for rechargeable batteries
•SA 62 16 GB memory card - Kingston MicroSD HC Class 4
•SA 143 carrying case for the SVAN 979 instrument and accessories
•four AA alkaline batteries
1.5 ACCESSORIES AVAILABLE
•SA 17A external battery pack using 6 x AA batteries
•SA 47 carrying bag for SVAN 97x/95x and accessories (fabric material)
•SA 79 carrying case for SVAN 97x/95x and accessories (waterproof)
•SA 143 carrying case for SVAN 979 and accessories (lightweight)
•SA 279 microphone outdoor protection kit for the SVAN 979 microphone (microphone,
desiccator and extension cable not included)
•SA 270D desiccator for outdoor kit
•SC 93 extension cable for SV 17 (LEMO 7-pin to LEMO 7-pin)
•SA 08 microphone preamplifier holder (gooseneck)
•SV 55 interface RS 232 for SVAN 979
•SV 80 general purpose vibration accelerometer 100 mV/g (10 mV/ms-2)
•SV 36 Class 1 sound calibrator: 94/114 dB@1000 Hz
•SC 27 coiled TNC-TNC cable for accelerometer (2 m)
•SC18T LEMO 7-pin to TNC integrated connector
•SA 27/10-32 mounting adapter for SV80 and SV81 accelerometers
•SA 15 power supply
•SV 58_C GPS module with USB CLIENT plug
•SV 58_H GPS module with USB HOST plug
1.6 FIRMWARE OPTIONS AVAILABLE
The standard firmware of SVAN 979 includes 1/1 and 1/3 octave analysis, FFT analysis, RT60, Time Domain
Signal recording and STIPA. Other functions are optional:
•SV 979_7 Loudness analysis option for SVAN 979
•SV 979_8 Rotation measurement option (not including the RPM tachometer)
•SV 979_16 User programmable second order band pass filters
•SV 979_23 1/6 and 1/12 analysis option for SVAN 979
Note: The software options for the instrument can be purchased at any time as only the introduction
of a special unlock code is required for their activation in a specific instrument. Contact your local
Svantek distributor for further information and costs for these options.

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SVAN 979 User Manual
2 GENERAL INFORMATION
2.1 MEASUREMENT CONFIGURATIONS AS SLM
The instrument's normal operating mode as SLM assumes operating with a preamplifier and a microphone
attached to the instrument and without a windscreen. Optionally the instrument can be operated with the
windscreen attached to the microphone or with the preamplifier and microphone fitted in the outdoor
microphone kit and connected with the instrument by the extension cable (see Appendix C.7 for specification).
During sound measurements, to meet the requirements of the Class 1 accuracy, it is recommended to install
the instrument on a tripod or in a holder to minimize the possibility of reflection and diffraction of acoustic waves.
In particular, the instrument must not be held close to the body of the person performing the measurement. The
instrument should be directed so that the microphone diaphragm plane is perpendicular to the direction of the
measured sound source (the incidence angle of the sound wave is 0 degree).
In the case of significant differences between the instrument’s temperature and the ambient temperature at the
measurement 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 presence of wind, it is necessary to use a windscreen. The windscreen
should be simply installed over the microphone with the preamplifier without any significant force.
To have measurements in accordance with the IEC 61672-1:2013 standard it is necessary to set the
appropriate compensation in the Compensation Filter screen (see Chapter 4.6).
When measuring in the diffusion field (in small spaces) it is recommended to switch on the filter for the diffusion
field.
Before starting measurements, the instrument should be calibrated
using the recommended sound calibrator (see Chapter 3.3).

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SVAN 979 User Manual
2.2 MEASUREMENT CONFIGURATIONS AS VLM
The instrument can operate as VLM with the SV 80 general-
purpose accelerometer 100 mV/g (10 mV/ms-2) with the SC 27
coiled cable (see Appendix C for specification).
Chapter 16.3 presents the way of connecting the accelerometer
to the instrument.
2.3 INPUT AND OUTPUT SOCKETS OF THE INSTRUMENT
SVAN 979 is supplied disassembled, so the user should mount the
GRAS 40AE microphone and SV 17 preamplifier on his own.
It doesn’t matter which elements will be assembled first: the microphone
with the preamplifier or the instrument with the preamplifier.
To connect the preamplifier with the microphone to the instrument, first
insert the tip of the preamplifier into the socket until the connector clicks.
Then move the preamplifier outer sleeve in the direction to the instrument
and tighten it to the screw thread.
See also Chapter 16 for instrument Maintenance.

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SVAN 979 User Manual
Top cover of the instrument
The measurement input is placed in the centre of the instrument’s top cover.
It is the Lemo-7 compatible socket.
The SV 17 microphone preamplifier has a specially designed matching plug
and a locking screw to secure the preamplifier to the meter body.
The accelerometers have to be connected to the instrument also using the
Lemo-7 connector. After connecting the preamplifier or the accelerometer
cable to the measurement input, the screw should be tightened to light
resistance only.
Do not over tighten this connector.
It is not necessary to remove this preamplifier from the top of the instrument
unless the meter is in a calibration laboratory as it is always used close
coupled to the meter body.
The full description of the signals connected to the sockets is given in
Appendix C.
Bottom cover of the instrument
In the bottom cover there are four sockets, placed from the right to the left
as follows: 6-24V, USB Host, USB Device and I/O.
The USB Device 1.1 interface is the serial interface working with 12 MHz
clock. Thanks to its speed, it is widely used in all PC. In the instrument, the
standard 4-pin socket is used and described in detail in Appendix C.
The USB Host 1.1 interface can be used to connect an external USB
Memory Stick or USB hard disk, enabling the device to register virtually
infinite sequence of measurement results.
The additional multi-purpose input / output socket, called I/O, is a two-pin
LEMO socket. On this socket, in case the Analogue Output functionality is
selected, the signal from the input of the analogue / digital converter (before
any frequency correction) is available. This signal can be recorded using
magnetic recorder or observed on the oscilloscope. The Digital Input is
another functionality that serves as the external trigger to the instrument,
while the Digital Output is used to generate the trigger pulse or alarm pulse
from the instrument.
You can connect an external DC power 6-24V adapter to the 6-24V socket
located on the bottom cover of the instrument. The current consumption
depends on the voltage of the power supplier.
There is a micro SD card memory slot under the bottom cover of the
instrument and spaces for the 4 x AA batteries.
All sockets are described in detail in Appendix C for this manual.
Note: Use only high-quality USB cables, such as SC 16. Many poor-quality cables do not ensure
low resistance of the cable, thus disabling proper operating of the instrument.
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 replaced.
Note: Switch the power off before connecting the instrument to any other device (e.g. a Personal
Computer).

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SVAN 979 User Manual
2.4 CONTROL KEYS ON THE FRONT PANEL
Control of the instrument has been developed in a fully interactive manner. Convenient and intuitive menu is
used for device configuration Thanks to that, the number of keys has been reduced to nine for ease of use and
convenience.
The following control keys are located on the front panel of the instrument:
•<ENTER>,(<Menu>),[<Save>],
•<ESC>, (<Cal>),[<S/P>],
•<Shift>,
•<Alt>,
•▲, ◄, ►, ▼
•<Start/Stop>.
Functions of these keys are described below. The name given in (...)
brackets denotes the second key function which is available after pressing
it in conjunction (or in sequence) with the <Shift> key. For the first two keys,
the name given in square brackets […] denotes also the third key function
which is available after pressing it in conjunction (or in sequence) with the
<Alt> key.
<Shift>
Enables the second function of some keys (for example, <Menu>).
<Alt>
Enables the third function of some keys (for example, <S/P>).
Note: These keys can be used in two different modes, which are configured in the Keyboard screen
(path: <Menu> / Instrument / Keyboard):
•like in a computer keyboard, when both the <Shift>/<Alt> key and the second key must be
pressed simultaneously (Direct mode);
•like in a smartphone keyboard, when the first <Shift>/<Alt> key should be pressed and
released and then the second key pressed (2nd Function mode).
Note: Simultaneous pressing of the <Alt> and <Start/Stop> keys turning the instrument on or off.
<Start/Stop>
This key starts or stops the measurement. You can set the mode of this key so that to
start or stop the measurements you should press <Start/Stop> simultaneously with
<Shift>. This can prevent accidentally starting or stopping a measurement.
<ENTER>
This key opens the selected position in the list and confirms selected settings. Some
additional functions of this key will be described in the following chapters of this manual.
(<Menu>)
This key (<Shift> + <ENTER>) opens the main Menu. Double press of the <Menu>
key opens the list containing last opened positions. It gives faster access to the
frequently used screens for easy navigation.
[<Save>]
This key (<Alt> + <ENTER>) enables saving of measurement results (see description
in Chapter 2.9).
<ESC>
This key escapes from the lists of parameters, menu lists or other screens and return
to the previous screen without saving changes. It acts in an opposite way to the
<ENTER> key.
(<Cal.>)
This key (<Shift> + <ESC>) opens the Calibration position.
[<S/P>]
This key (<Alt> + <ESC>) breaks the measurement process temporary or enables
saving of the setup file if the instrument is not running the measurement.
◄, ►
These keys allow to:
•select a column in a multi column parameter list;

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SVAN 979 User Manual
•select a parameter value in an active position (e.g. filter Z, A, Betc., Start Delay
period: 1s, 2s, 3s, … etc.);
•control a cursor in the Spectrum, Logger and Statistics mode of result
presentation;
•select a position of the character in the text editing screen;
•activate/deactivate markers no. 2 and 3
•speed up change numerical values of parameters when pressed and held.
(◄, ►)
The ◄/ ► keys pressed together with <Shift> allow to:
•change the parameter’s value with double step (e.g. Start Delay period: form 1s to
11s, 21s, … etc.);
•shift cursor from the first to the last position and back on the plot.
[◄, ►]
The ◄/ ► keys pressed together with <Alt> allow to:
•select a parameter’s value in an active position in the matrix parameter list;
•select a parameter’s value in an active position (e.g. filter Z, A, B,C etc., Start Delay
period: 1s, 2s, 3s … etc.);
•insert or delete a character in the text edition screen.
▲, ▼
These keys allow to:
•select a position in the list;
•select an active field in the result view screen;
•select a character in the text edition screen;
•activate/deactivate markers no. 1 and 4.
(▲,▼)
The ▲ / ▼ keys pressed together with <Shift> allow to:
•shift a cursor from the first to the last position and back in the menu list;
•change relationship between the Y-axis and X-axis for plots.
[▲,▼]
The ▲ / ▼ keys pressed together with <Alt> allow to:
•change a mode of result presentation;
•programme the Real-Time Clock (RTC) and Timer.
[Info]
The <Info> key (simultaneous pressing the ◄and ►
keys) opens the screen with the help information in the
measurement display modes. Press <ESC> or
<ENTER> to exit the Info screen.
<Markers>
The <Markers> key (<Alt> + <Shift>) enables marking the special events, occurring
during a measurement (for example, some sound or vibration disturbance). To activate
markers, the logger should be switched on (path: <Menu> / Measurement / Logging /
Logger Setup) and one or more logger results (Peak, Max, Min, Leq, LXY, LR1 or LR2
for sound measurements or Peak, P–P, Max, RMS for Vibration measurements) in
profiles should be active (path: <Menu> / Measurement / Logging / Logger Results).
To enter the marker mode, press the <Shift> and <Alt> keys simultaneously
during the measurement. Then four available markers will appear on the screen.
To switch on marker no. 1, press the ▲key (no. 2 - ◄, no. 3 - ►and no. 4 - ▼).
Active marker number will be highlighted. To switch off the marker, press the
appropriate arrow-key second time.
Markers disappear from the screen after pressing <Shift> and <Alt>, but their
status doesn’t change. To continue working with markers, press <Shift> and
<Alt> again.
Markers are saved in the logger file (cf. App. B for details) and can be studied
with the help of the SvanPC++ software.
<Shift> / <Alt>
▲

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SVAN 979 User Manual
An example below presents markers on the time history plot.
Note: When the screen saver function is active (see Chapter 5.4) you may face the problem that
during dimmed or switched off screen you should press the ▲, ◄, ►or ▼ keys twice to activate
the marker, because the first press of these keys will cause switching on the screen. If activating
markers is sensitive for your measurement process, switch off the screen saver function.
2.5 WORKING WITH THE INSTRUMENT
The instrument is controlled by means of nine keys on the keypad. Using these keys, one can access all
available functions and change the value of all available parameters.
The instrument is equipped with the super contrast OLED colour display (320 x 240 pixels), which displays the
measurement results and the configuration menu.
The instrument has two general modes of operation: measurement performance and results preview mode and
configuration mode with the use of Menu functionality.
Turning instrument on
To turn the instrument on, press the <Alt> and <Start/Stop> keys at the same
time.
The instrument goes through the self-test routine after turning on, displaying
during this time the manufacturer logo, the name of the instrument and the
firmware version. The instrument will warm up for one minute, then it enters one
of the results view mode:
•the last used, just before the unit switch
off, in case of Vibration measurements
or
•the Running SPL view (if it was
enabled) or the last used, just before the
unit switch off, in case of Sound
measurements.
20
30
40
50
60
70
80
13:30:00 13:30:09 13:30:17 13:30:26 13:30:35 13:30:43 13:30:52
Leq
Marker 1
Marker 2
Marker 3
Marker 4