Svantek SVAN 971 User manual

USER MANUAL
SVAN 971
POCKET-SIZE SOUND
LEVEL METER
& ANALYSER
Warsaw, 28-03-2018
Copyright © 2018 SVANTEK. All rights reserved.

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Note: On account of continuous product improvement SVANTEK reserves the right to make
changes to product specificationswithout notice. To download the most up to date user's manual please
visit our web site at www.svantek.com.
This user’s manual presents the firmware revision named 1.11.6 (see the Unit Label review to check
version details).
The succeeding software revisions (marked with the higher numbers) can change the view of some
displays presented in the text of the manual.
WEEE Note: 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 © 2018 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.
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: [e-mail]

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CONTENTS
INDEX............................................................................................................................................................... 8
1INTRODUCTION ...................................................................................................................................... 11
1.1 SVAN 971 AS SOUND LEVEL METER &ANALYSER ....................................................................................... 11
1.2 GENERAL FEATURES OF SVAN 971 .......................................................................................................... 12
1.3 ACCESSORIES INCLUDED ......................................................................................................................... 12
1.4 ACCESSORIES AVAILABLE ........................................................................................................................ 12
1.5 INSTRUMENT SOFTWARE OPTIONS AVAILABLE (FIRMWARE) ............................................................................. 13
2MANUAL CONTROL OF THE INSTRUMENT .............................................................................................. 14
2.1 CONTROL KEYS ON THE FRONT PANEL......................................................................................................... 14
2.2 INPUT AND OUTPUT SOCKETS OF THE INSTRUMENT........................................................................................ 15
3GENERAL INFORMATION ........................................................................................................................ 17
3.1 BASIS OF THE INSTRUMENT’S CONTROL ...................................................................................................... 17
3.2 POWERING OF THE INSTRUMENT .............................................................................................................. 19
3.3 GETTING STARTED ................................................................................................................................ 20
3.4 DESCRIPTION OF ICONS .......................................................................................................................... 21
3.5 DATA SAVING ...................................................................................................................................... 22
3.6 FILES DOWNLOADING AND UPLOADING ...................................................................................................... 24
3.7 ACTIVATION OF OPTIONAL FUNCTIONS ....................................................................................................... 24
4MEASUREMENT FUNCTIONS AND CALIBRATION –FUNCTION ................................................................ 25
4.1 MEASUREMENT FUNCTIONS OF THE INSTRUMENT –MEASUREMENT FUNCTION ................................................... 25
4.2 INSTRUMENT’S CALIBRATION –CALIBRATION............................................................................................... 25
4.2.1 Calibration - By Measurement .................................................................................................. 26
4.2.2 History of calibrations - Last Calibration ................................................................................... 27
4.2.3 Post measurement calibration –Post Calibration...................................................................... 27
4.2.4 Automatic calibration –Auto Calibration .................................................................................. 28
5CONFIGURING MEASUREMENT PARAMETERS –MEASUREMENT ........................................................... 29
5.1 SETTING UP GENERAL MEASUREMENT PARAMETERS -GENERAL SETTINGS ........................................................... 29
5.2 SETTING UP THE MEASUREMENT TRIGGER –MEASUREMENT TRIGGER ............................................................... 31
5.3 SETTING PARAMETERS FOR PROFILES –PROFILES .......................................................................................... 33
5.4 SETTING THE ALARM THRESHOLDS FOR DOSE METER FUNCTIONS –ALARM .......................................................... 33
5.5 SETTING UP THE DATA LOGGING –LOGGING................................................................................................ 33
5.5.1 Setting up the logger general parameters –Logger Setup ......................................................... 34
5.5.2 Selection of results for logging –Logger Results........................................................................ 36
5.5.3 Logger trigger settings –Logger Trigger ................................................................................... 36
5.5.4 Event recording settings –Event Recording............................................................................... 38
5.6 MEASUREMENT RANGE SELECTION –RANGE ............................................................................................... 41
5.7 SWITCHING ON THE MICROPHONE COMPENSATION –COMPENSATION FILTER...................................................... 41

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5.8 STATISTICAL LEVELS SETTINGS –STATISTICAL LEVELS...................................................................................... 42
5.9 PROGRAMMING THE INSTRUMENT’S INTERNAL TIMER –TIMER ........................................................................ 42
5.10 EXAMPLE OF TIMER EXECUTION................................................................................................................ 42
6CONFIGURING DATA VIEWING –DISPLAY............................................................................................... 44
6.1 ENABLING DISPLAY MODES –DISPLAY MODES ............................................................................................. 44
6.1.1 One Result display mode .......................................................................................................... 44
6.1.2 Three profiles display mode...................................................................................................... 45
6.1.3 Logger display mode ................................................................................................................ 46
6.1.4 Statistics presentation mode .................................................................................................... 47
6.1.5 File information display mode................................................................................................... 47
6.1.6 Running SPL display mode ........................................................................................................ 47
6.2 ADJUSTING SCALE AND GRID OF THE PLOT –DISPLAY SCALE............................................................................. 47
6.3 SELECTION OF SUMMARY RESULTS FOR PRESENTATION –MEASUREMENT RESULTS............................................... 48
6.4 CHOOSING LOGGER RESULTS FOR PRESENTATION -LOGGER RESULTS ................................................................ 48
6.5 SETTING THE POWER SAVER -SCREEN SETUP ............................................................................................... 49
7MANAGING FILES –FILE.......................................................................................................................... 50
7.1 MANAGING LOGGER FILES –FILE MANAGER ............................................................................................... 50
7.1.1 Assigning the directory for logger files saving –Working Directory............................................ 51
7.1.2 Renaming a file/directory –Rename......................................................................................... 51
7.1.3 Information about a file/directory –Info................................................................................... 52
7.1.4 Deleting a file/directory –Delete .............................................................................................. 52
7.1.5 Erasing memory –Erase Disk.................................................................................................... 52
7.2 MANAGING SETUP FILES –SETUP MANAGER ............................................................................................... 52
8CONFIGURING INSTRUMENT PARAMETERS –INSTRUMENT................................................................... 53
8.1 CHOOSING THE USER INTERFACE MODE –USER INTERFACE ............................................................................. 53
8.2 CHECKING POWER –BATTERY.................................................................................................................. 54
8.3 PROGRAMMING THE KEYBOARD FUNCTIONS –KEYBOARD ............................................................................... 54
8.4 AUTOMATIC POWER OFF SETTING –POWER OFF .......................................................................................... 55
8.5 CONFIGURING THE USB INTERFACE –USB ................................................................................................. 55
8.6 CONFIGURING THE SERIAL INTERFACE -RS232 ............................................................................................ 55
8.7 SELF-VIBRATION MARKER –SELF VIBRATION ............................................................................................... 55
8.8 PROGRAMMING THE INSTRUMENT’S INTERNAL REAL TIME CLOCK –RTC............................................................ 56
8.9 CHECKING THE INSTRUMENT PROPERTIES -UNIT LABEL .................................................................................. 56
9AUXILIARY SETTINGS –AUXILIARY SETUP ............................................................................................... 57
9.1 SELECTING THE LANGUAGE OF THE USER INTERFACE –LANGUAGE ..................................................................... 57
9.2 RESTORING FACTORY SETTINGS –FACTORY SETTINGS .................................................................................... 57
9.3 VOICE COMMENTS –COMMENTS ............................................................................................................. 57
9.4 DISPLAYING OF LEQ & LAV RESULTS –LEQ & LAV ........................................................................................ 58

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9.5 WARNINGS SELECTION –WARNINGS......................................................................................................... 58
10 PRINTING REPORTS - REPORT ............................................................................................................. 59
10.1 PRINTING MEASUREMENT RESULTS –PRINT ................................................................................................ 59
10.2 SELECTING PRINTING OPTIONS –OPTIONS .................................................................................................. 61
10.3 SELECTING RESULTS FOR THE REPORT –RESULTS........................................................................................... 61
10.4 SELECTING STATISTICS FOR THE REPORT –STATISTICS ..................................................................................... 61
10.5 SELECTING SPECTRA FOR THE REPORT –SPECTRUM ....................................................................................... 62
10.6 PRINTER SETTINGS –PRINTER .................................................................................................................. 62
11 1/1 AND 1/3 OCTAVE ANALYSER......................................................................................................... 63
11.1 SELECTION OF THE 1/1 OCTAVE OR 1/3 OCTAVE FUNCTION ........................................................................... 63
11.2 CONFIGURING THE 1/1 OR 1/3 OCTAVE ANALYSER ....................................................................................... 63
11.2.1 General measurement settings for the 1/1 and 1/3 octave analysis –General Settings.............. 63
11.2.1 Selecting the measurement range for the 1/1 and 1/3 octave analysis - Range ......................... 64
11.2.1 Logging of 1/1 and 1/3 octave spectra –Logging...................................................................... 64
11.2.2 Setting up the parameters of 1/1 and 1/3 octave analysis - Spectrum ....................................... 64
11.3 CONFIGURING 1/1 AND 1/3 OCTAVE SPECTRA VIEWS.................................................................................... 65
11.3.1 Presentation of 1/1 and 1/3 octave spectra .............................................................................. 65
11.3.2 Adjusting scales of the spectrum plot –Display Scale ................................................................ 66
11.3.3 Selection of spectra to be viewed –Spectrum View ................................................................... 67
12 DOSIMETER......................................................................................................................................... 68
12.1 SELECTION OF THE DOSIMETER FUNCTION................................................................................................... 68
12.2 SETTING GENERAL PARAMETERS –GENERAL SETTINGS ................................................................................... 68
12.3 SETTING PROFILE PARAMETERS –PROFILE X................................................................................................ 68
12.4 SETTING THE EXPOSURE TIME –EXPOSURE TIME .......................................................................................... 69
12.5 SETTING ALARM THRESHOLDS FOR DOSE METER FUNCTIONS –ALARM................................................................ 69
12.6 LOGGING RESULTS IN A FILE -LOGGER RESULTS ............................................................................................ 70
12.7 DISPLAYING DOSIMETER RESULTS ............................................................................................................. 70
12.7.1 Displaying of Leq & Lav results –Leq & Lav –Leq & Lav ............................................................ 70
13 RUNNING LEQ..................................................................................................................................... 71
14 MAINTENANCE ................................................................................................................................... 72
14.1 POWERING OF THE INSTRUMENT .............................................................................................................. 72
14.2 MEMORY CARD EXTRACTION AND INSERTION ............................................................................................... 72
14.3 TRANSDUCERS ..................................................................................................................................... 73
14.4 RESETTING THE INSTRUMENT................................................................................................................... 73
14.5 FIRMWARE UPGRADE ............................................................................................................................ 73
14.6 PRESERVATION OF INTERNAL BATTERIES ..................................................................................................... 74
14.7 TRANSPORTATION AND STORAGE.............................................................................................................. 74
14.8 CLEANING .......................................................................................................................................... 74

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14.9 TROUBLESHOOTING .............................................................................................................................. 74
15 GLOSSARY........................................................................................................................................... 75
15.1 MODES AND MEASUREMENT FUNCTIONS................................................................................................... 75
15.2 CALIBRATION ...................................................................................................................................... 76
15.3 DEFINITIONS OF MEASURED RESULTS ......................................................................................................... 77
15.4 MEASUREMENT PARAMETERS.................................................................................................................. 81
15.5 DISPLAY PARAMETERS............................................................................................................................ 92
15.6 INSTRUMENT PARAMETERS ..................................................................................................................... 95
15.7 AUXILIARY PARAMETERS ......................................................................................................................... 97
APPENDIX A. REMOTE CONTROL.................................................................................................................... 99
A.1 INPUT /OUTPUT TRANSMISSION TYPES ...................................................................................................... 99
A.2 FUNCTION #1 -INPUT/OUTPUT OF THE CONTROL SETTING CODES .................................................................... 99
A.3 FUNCTION #2 -MEASUREMENT RESULTS READ-OUT IN THE SLM MODE ........................................................... 101
A.4 FUNCTION #3 -READ-OUT OF MEASUREMENT RESULTS IN 1/1 OCTAVE AND 1/3 OCTAVE MODE .......................... 104
A.5 FUNCTION #4 -READ-OUT OF THE DATA FILE FROM THE INTERNAL FLASH-DISK OR RAM MEMORY ......................... 105
A.6 FUNCTION #D –READ /WRITE THE DATA FILES FROM THE EXTERNAL MEMORY (SD-CARD) .................................. 106
A.7 FUNCTION #5 -STATISTICAL ANALYSIS RESULTS READ-OUT ............................................................................ 107
A.8 FUNCTION #7 - SPECIAL CONTROL FUNCTIONS ........................................................................................... 108
A.9 FUNCTION #9 -WRITE-IN THE DATA FILE INTO THE INTERNAL FLASH-DISC .......................................................... 112
A.10 CONTROL SETTING CODES ..................................................................................................................... 113
APPENDIX B. DATA FILE STRUCTURES........................................................................................................... 117
B.1 GENERAL STRUCTURE OF THE SVAN 971 FILES .......................................................................................... 117
B.2 STRUCTURE OF THE FILE CONTAINING RESULTS FROM LOGGER’S FILE ................................................................ 136
B.2.1. The contents of the files in the logger........................................................................................... 136
B.2.1.1. Record with the results.......................................................................................................................... 137
B.2.1.2. Record with the state of the markers ..................................................................................................... 138
B.2.1.3. Record with the breaks in the results registration................................................................................... 138
B.2.1.4. Record with the breaks account PAUSE in the results registration........................................................... 138
B.2.1.5. Record with the wave file name............................................................................................................. 138
B.2.1.6. Record with Summary Results................................................................................................................ 139
B.2.1.7 Record with audio data........................................................................................................................... 139
B.2.1.8. Record with name of the comment file .................................................................................................. 140
B.2.1.9. Record with GPS data ............................................................................................................................ 141
B.3 STRUCTURE OF THE SETUP FILE ............................................................................................................. 141
B.4 DATE AND TIME ................................................................................................................................. 142
APPENDIX C. TECHNICAL SPECIFICATIONS.................................................................................................... 143
C.1 SPECIFICATION OF SVAN 971 AS SOUND LEVEL METER ................................................................................ 143
C.1.1 Specification of SVAN 971 as SLM in the standard configuration ................................................. 143
C.1.2 Effect of the SA 22 windscreen ...................................................................................................... 162

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C.1.3 Effect of the SA 271 Outdoor Protection Unit................................................................................. 164
C.2 SPECIFICATION OF SVAN 971 AS 1/1 OCTAVE AND 1/3 OCTAVE ANALYZER .................................................... 165
C.3 FREQUENCY CHARACTERISTICS OF THE IMPLEMENTED DIGITAL FILTERS .............................................................. 176
C.4 MISCELLANEOUS SPECIFICATION OF SVAN 971......................................................................................... 178
C.5 USING OF THE SA 271 OUTDOOR MICROPHONE PROTECTION UNIT .............................................................. 182
APPENDIX D. DEFINITIONS AND FORMULAE OF MEASURED VALUES...................................................... 213
D.1 BASIC TERMS AND DEFINITIONS .............................................................................................................. 213
D.2 DEFINITIONS AND FORMULAS OF THE SLM RESULT...................................................................................... 214
D.3 DEFINITIONS AND FORMULAS OF THE ADDITIONAL DOSIMETER FUNCTION RESULTS.............................................. 217
D.4 DEFINITIONS AND FORMULAS OF THE ADDITIONAL RUNNING LEQ FUNCTION RESULTS.......................................... 218
D.5 STATISTICAL LEVELS –LNN DEFINITION ..................................................................................................... 219

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INDEX
1
1/1 Octave · 29, 67
1/3 Octave · 29, 67
3
3 Profiles view · 48, 49
A
Advanced interface · 57
Airport compensation · 46
Alarm · 37, 73
Auto Calibration · 32
Auto rotation · 53
Automatic pauses · 72
Autoscale · 52, 71
Auxiliary Setup · 61
B
Battery ·24, 57
By Measurement · 30
C
Calibration · 29
Calibration Factor · 31
Calibration Level · 30
Capacity · 55
Clear History · 31
Colour scheme · 53
Compensation Filter · 45
Criterion Level · 73
D
Day Time Limits · 35
Default settings · 25
Delete · 56
Detector · 37, 69, 73
Diffuse Field compensation · 46
Dim Delay · 53
Dim Mode · 53
Disk Name · 55
Display · 48
Display Modes · 48
Display Scale · 51, 70
Dosimeter · 29, 72
Dosimeter results · 74
Dosimeter Results · 52
Downloading · 28
Dynamics · 52, 70
E
Environment compensation · 46
Erase Disk · 56
Event Recording · 42
Exchange Rate · 73
Exponential · 35
Exposure Time · 73
F
Factory Settings · 24, 61
Fast Unlock · 58
File · 54
File Info view · 48, 51
File Manager · 54
Filter · 37, 44, 68
Filter Peak · 37
Firmware upgrade · 77
Free Space · 55
Function · 29
G
General Settings · 33
Gradient · 37
Gradient + trigger · 36, 43
Grid · 70
H
Help information · 23
High range · 45
I
Icons · 25
Inactive parameters · 23
Info · 55
Information window · 23
Instrument · 57
Integr. Period trigger · 44
Integration Period · 34, 38

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K
Key Lock · 58
Keyboard · 58
L
Language · 61
Last Calibration · 31
Leq & Lav display · 62, 74
LEQ Integration · 35
Level · 37, 40, 41, 42, 44
Level - trigger · 36, 41, 43
Level + trigger · 36, 41, 43
Level Meter · 29
Linear · 35
List of options · 22
List of parameters · 22
Logger · 38
Logger Name · 27, 39
Logger Results · 40, 52, 73
Logger Setup · 38
Logger Split · 39
Logger Step · 38
Logger Trigger · 40
Logger view · 48, 50
Logging · 37
Low range · 45
M
Main menu · 22
Manual trigger · 44
Matrix of parameters · 22
Measurement · 33
Measurement Function · 29
Measurement Results · 52
Measurement Trigger · 35
Measurement View · 21
Microphone compensation · 45
N
New Directory · 55
O
One Result view · 48
Opening a position · 22
Optional functions · 28
Outdoor filters · 46
P
Position selection · 22
Post Calibration · 31
Post-trigger · 40
Power Off · 59
Powering · 23
Pre-trigger · 40, 45
Print · 63
Print Options · 64
Print Spectrum · 65
Print Statistics · 65
Printer · 66
Printing Results · 65
Profiles · 37
PTC Threshold Level · 73
R
Range · 45
Recording · 42
Recording Time · 42, 45
Rename · 55
Repetition Cycles · 34, 38
Report · 63
Resetting · 77
RS232 · 59
RTC · 59
Running LEQ · 29, 75
Running SPL · 24
Running SPL view · 48, 51
S
Sampling · 44
Screen Off · 53
Screen Setup · 52
SD Card · 26, 55, 76
Self Vibration · 59
Setup Manager · 28, 56
Shift key mode · 58
Simple interface · 57
SLM Results · 52
Slope - trigger · 43
Slope + trigger · 42
Source · 36, 40, 41, 42, 44
Spectrum · 68, 69
Spectrum view · 69
Spectrum View · 71
Start Delay · 34
Start Synchronisation · 34
Start/Stop interface · 57
Statistical Levels · 46
Statistics view · 48, 51
Summary Results · 38, 40
T
Threshold Level · 73
Timer · 46
Tr. Period · 42, 45
Trigger · 35, 40
Troubleshooting · 78

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U
ULT Threshold Level · 73
Unit Label · 60
Uploading · 28
Usb · 59
User interface · 21
User Interface · 57
V
Voice comments · 61
W
Warnings · 62
Weighting filter · 72
Windscreen compensation · 46
Working Directory · 55

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1 INTRODUCTION
SVAN 971 is an extremely small Class 1 IEC 61672-1:2013
Sound Level Meter (SLM) and real time 1/1 & 1/3 octave
analyser.
The new user interface of this instrument makes measurement
configuration as easy as possible. This all makes SVAN 971 an
ideal choice for industrial hygiene noise measurements, short
period environmental noise measurements, acoustics
consultancy surveys, technical engineers dealing with noise
issues and general acoustics noise measurements.
SVAN 971 provides broad band results with all required
frequency weightingfilters plus real time 1/1 octave & 1/3 octave
spectra in the audio range.
The instrument enables huge time history logging capability
providing broad band results and spectra with adjustable double
(long and short) logging steps. Audio recording on user
selectable trigger conditions complete the logging functionality.
Data are stored on a micro SD memory card and can be easily
downloaded to PC (with the provided SvanPC++ software) over
USB or optional RS 232 interfaces.
The instrument can be easily calibrated in thefield using a sound
calibrator. A built-in algorithm automatically activates the
calibration process whenever a sound calibrator is installed on
the microphone and the calibration history is saved for later
inspection.
Thanks to a robust (IP65) and pocket size housing, this
instrument is an excellent tool for anyone who deals with
acoustic measurements.
SVAN 971 comes with SvanPC++ software for data
downloading, visualization, basic post-processing and exporting
to commonly used office software applications. Additionally, a
dedicated software package for environmental monitoring
(SvanPC++_EM) is also available. This module supports
measurement data management, advanced data processing
and analysis, visualization and automated reporting.
1.1 SVAN 971 AS SOUND LEVEL METER &ANALYSER
•SLM Mode: OVL, Lpeak, Lmax, Lmin, L,Leq, LE, Lden, LEPd, Ltm3,Ltm5, Lnn, with Class 1
IEC 61672-1:2013 accuracy in thefrequency range 10 Hz ÷20 kHz with ACO 7052E microphone
(38mV/Pa, prepolarised ½” condenser microphone)
•Sound dosimeter mode (option): OVL, Lpeak, Lmax, Lmin, L, DOSE, D_8h, PrDOSE,LAV,
Leq, LE, SEL8, E, E_8h, LEPd, PSEL,Ltm3,Ltm5, Lnn, PTC, PTP, ULT, TWA, PrTWA and
Lc-a
•parallel Impulse, Fast and Slow detectors for the measurements with A, B, C, Zand LF
frequency filters
•total linearity measurement range 25 dBA LEQ ÷ 140 dB PEAK; is divided into two ranges:
- low range: 25 dBA LEQ ÷ 123 dB PEAK
- high range: 30 dBA LEQ ÷ 140 dB PEAK

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•1/1 Octave (option) real-time analysis meeting Class 1 requirements of IEC 61260-1:2014. 10
centre frequencies from 31.5 Hz to 16 kHz (option) available simultaneously with three user
definable profiles for broadband measurements (SLM), time history logging and audio recording
•1/3 Octave (option) real-time analysis meeting Class 1 requirements of IEC 61260-1:2014. 31
centre frequencies from 20 Hz to 20 kHz (option) available simultaneously with three user
definable profiles for broadband measurements (SLM), time history logging and audio recording
1.2 GENERAL FEATURES OF SVAN 971
•Sound Level Meter in extremely small pocket size body
•Noise measurements meeting Class 1 IEC 61672-1:2013 accuracy
•Two overlapping wide measurement ranges
•1/1 & 1/3 octave real-time frequency analysis (option)
•Dosimeter function for personal noise monitoring in the workplace (option)
•Audio event recording (option)
•Statistical analysis with up to 10 percentile values
•Time-history with two logging step intervals
•Automated calibration start and save
•Free-field & diffuse-field measurements
•Integration measurement run time programmable up to 24 h
•Setup editor available with Supervisor or SvanPC++ software
•Super contrast colour OLED display
•Wide range of temperature operating conditions
•Protection rating IP 65 for use in the field
•Very handy, light weight and robust pocket size case
•Easy and friendly user interface for quick start and stop
1.3 ACCESSORIES INCLUDED
•SV 7052E microphone capsule (38 mV/Pa, prepolarised ½” condenser microphone)
•SV 18 microphone preamplifier
•SC 156 micro USB cable
•SA 62 micro SD memory card 4 GB capacity
•SA 22 foam windscreen
•batteries four AAA type
•CD with manual
•Supervisor application software for data management and reporting for MS Windows
•SvanPC++ PC Software for viewing and exporting data for MSWindows
1.4 ACCESSORIES AVAILABLE
•SV 35A Class 1 sound calibrator: 114 dB/1000 Hz
•SV 75 RS232 interface option with external power supply plug for SVAN 971
•SC 91/5 extension cable for SV 18 (SVAN 971), 5 meters (for laboratory purposes)
•SA 72 carrying case for SVAN 971 and accessories (waterproof)
•SA 80 pocket soft bag for SVAN 971
•SA 271 outdoor protection kit for SVAN 971 microphone
•SA 270D desiccator for outdoor protection kits SA 271, SA 277, SA 279
•SvanPC++_EM environmental monitoring modulefor SvanPC++ (hardware key, single license)

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1.5 INSTRUMENT SOFTWARE OPTIONS AVAILABLE (FIRMWARE)
•SVAN 971PACK Level Meter including time history logging, 1/1 & 1/3 octave analysis
•SV 971_1 1/1 octave analysis option
•SV 971_3 1/1 & 1/3 octave analysis option
•SV 971_10 noise dosimetry option
•SV 971_15 audio events recording option
Note: The software options listed above can be purchased at any time, as only the entry of a
special unlocks code is required for their activation.

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2 MANUAL CONTROL OF THE INSTRUMENT
Control of the instrument has been developed in a fully interactive manner. The user can operate the
instrument by selecting the appropriate position from the screen Menu list. Thanks to that, the number
of the control keys of the instrument has been reduced to eight for ease of use and convenience.
2.1 CONTROL KEYS ON THE FRONT PANEL
The following control keys are located on the front panel of the
instrument:
•<ESC>, (<P/S>)
•<Enter>,(<Menu>)
•▲,◄, ►, ▼
•<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> key.
<Shift>
The second function of a key (<P/S>, <Menu>) can be used when the <Shift> key is
pressed together with <Enter>, <ESC> or some other keys. This key can be used in
two different modes, which can be configured in the Keyboard list (path: <Menu> /
Instrument / Keyboard):
•like in a computer keyboard, when both <Shift> and the second key must be
pressed simultaneously (Direct mode);
•like in a smartphone keyboard, when the first <Shift> key should be pressed
and released and then the second key pressed (2nd Function mode).
Note: Simultaneous pressing of the <Shift> and <Start/Stop> keys turning the instrument on
or off.
<Start/Stop>
This key allows you to start and stop the measurement process.
<Enter>
This key allows you to open the selected position on the Menu list, to confirm selected
settings or to switch the views of the result presentation modes. Some additional
functions of this key will be described in the following chapters of this manual.
(<Menu>)
This key (pressed together with the <Shift>) allows you to enter the main Menu
containing seven sections: Function, Measurement, Display, File, Instrument,
Aux. Setup and Report. Each section consists positions, which opens screens with list
of positions or configuration parameters. These sections will be described in detail in
the following chapters of the manual. Double pressing of the <Menu> key opens the list
containingthe last earlier opened eightlists of parameters. It often speedsup the control
of the instrument as you have faster access to the frequently used lists of parameters
for easy navigation.
<ESC>
This key closes lists of parameters or other screens and return to the upper list of the
menu. It acts in an opposite way to the <Enter> key. When the window is closed after
pressing the <ESC> key, any changes just made are ignored.
(<P/S>)
This key allows you to pause or break the measurement process temporarily. If there is
no current running measurement in progress this key opens the Setup Manager menu.
◄/ ►
These keys allow you, in particular, to:
•select the column in a multi-column parameter list;

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•select the parameter value in an active position (e.g. filter Z, Aor C, Integration
period: 1s, 2s, 3s, … etc.);
•control the cursorin Spectrum, Logger and Statistics modes of result presentation;
•select the position of the character in the text edition screens;
•speed up the changing of numerical values of the parameters when pressed and
held.
(◄/►)
The ◄/ ►key pressed in together with <Shift> allow you, in particular, to:
•select the parameter value in an active position (e.g. filter Z, Aor C,Integration
period: 1s, 2s, 3s, … etc.);
•shift cursor from the first to the last position and back on the graphical view mode.
▲/ ▼
These keys allow you, in particular, to:
•select lines in the list;
•select the correct character from the list in the text editing mode;
•change the presentation mode of the results.
(▲ / ▼)
The ▲/ ▼ key pressed in conjunction (or in sequence) with the <Shift> allow you, in
particular, to:
•change the current result function in the measurement display mode;
•change the relationship between the Y-axis and X-axis of all plots presented on the
screen;
•program the Real Time Clock (RTC) and delayed run Timer.
<REC>
The simultaneously pressing the ◄and ►keys initiates recording of a voice signal as
a comment (see. Paragraph 9.3 “Voice comments”).
2.2 INPUT AND OUTPUT SOCKETS OF THE INSTRUMENT
Top cover of the instrument
The measurement Input is placed in the centre of the
instrument’s top cover. The SV 18 microphone preamplifier
has a specially designed matching plug with a locking screw
to secure the preamplifier to the meter body. After plugging in
the preamplifier 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 is only one socket - USB. This
socket has a special protection cover held in place by a small
captive screw.

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The USB Device 2.0 interface is the serial interface working with 12 MHz clock in the full speed mode
and with 480MHzin the high-speed mode,which is adefault mode of theinstrument.Thanksto its speed,
it is widely used in all PCs. The standard 4-pin socket is described in detail in Appendix C.
There is a memory micro SD-card slot under the bottom cover
of the instrument and spaces for the 4 x AAA batteries.
Note: Switch the power off before connectingthe instrument toany other device (e.g. a printer
or a Personal Computer) or fitting the microphone capsule.

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3 GENERAL INFORMATION
To start using the instrument the user should turn it on with the <Shift> and <Start/Stop> keys at the
same time.
3.1 BASIS OF THE INSTRUMENT’S CONTROL
The instrument is controlled by means of eight keys on the keypad. Using these keys, one can access
all available functions and change the value of all available parameters. The parameters are placed in a
system of lists and sub-lists shown on the high contrast graphic colour display.
The instrument's menu consists of different type of windows, which include: main menu list, sub-menu
list, option list, parameter list, text editor window, information window and file manager window with file
command list.
Measurement View
The instrument is equipped with the super contrast OLED colour display (96 x 96 pixels), which displays
the measurement results and the configuration menu.
Themeasurement results can be viewed indifferentviewmodes, theset of which depend onthe selected
User Interface and Measurement Function.
View modes present measurement results as well as additional information by
means of icons regarding:
- instrument status: memory, power, real time, etc.;
- measurement status: measurement elapsed time, measurement start/stop/
pause, trigger, logger etc.;
- measurement parameters: measured result, profile number, file name,
detector type, filter etc.
User interface mode
The user interface may be presented in three modes:
Start/Stop, Simple or Advanced. These modescan be
selected in the User Inter. window of the Instrument
menu. The Simple mode defines basic instrument
settings, while the Advanced mode defines the full
scope of available settings. Many windows can
therefore havedifferentview dependingonthe selected
operational mode.
The Start/Stop mode limits the menu to only one
User Interface position in the main menu and
measurement windows.
<ENT>
<Menu>
Note: For parameters hidden in the Simple interface mode the instrument will use settings
previously defined in the Advanced mode or default settings.
Whenthe Simple interfacemodeis being selected after
the Advanced mode theinstrument proposes to restore
the default settings by asking the question: Do you
restore the default value of the advanced settings?
In case of No, all hidden in the Simple mode
parameters will have settings defined in the Advanced
mode. In case of Yes, the instrument will set all hidden
parameters to default values.
<ENT>

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Main menu
The main menu (Menu) contains headers of seven sections, which contain
another sub-menu. Themain menuis openedafter pressing the <Menu> (<Shift>
and <Enter>) key.
Recent Items list
Double-pressing of the <Menu> key opens the list of recently used menu items.
This enables accessing most frequently used lists of parameters and lists of
options quickly, without the necessity of passing through the whole menu.
Position selection
The desired position in the list is selected with the ▲/ ▼
key.
▼
Opening a position
After selection of the 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 window appears on the display.
<ENT>
List of parameters
A list of parameters contains parameters for which you may select the value from
the available set.
•Use the ▲/ ▼key to select the parameter in the list.
•Use the ◄/ ►key to change the value of the selected parameter.
•Press <Enter> to saves all performed changes in the list of parameters.
List of options
In the list of options consists only one can be selected. The selection of the option
is performed in the following way. Select the desired option with the ▲/ ▼key
and press <Enter>. This option becomes active and the list is closed. After re-
entering this list again, the last selected option will be marked.
If the parameter has a numerical value, you can speed up a selection by pressing the ◄/ ►key and
keeping it pressed by more than 2 seconds. In this case, the parameter value starts to change
automatically until you release the pressed buttons.
You may change the numerical parameter value with a larger step (usually 10, 20) with the ◄/ ►key
pressed together with <Shift>.
Matrix of parameters
When the list of parameters consists of more than one column you may change:
•column with the ◄/ ►key
•line in the column with the ▲/ ▼ key
•value in the selected position with the ◄/ ►key pressed with <Shift>
•value in a line with the ▲/ ▼ key pressed with <Shift>
•value in a column, if the cursor is on one of Profile positions, with the ◄/ ►
key pressed with <Shift>

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•value in a matrix, if the cursor is on one of Profile positions, with the ▲/ ▼
key pressed with <Shift>.
Complex parameters
For complex parameters, consisted of more than one value field like RTC or result
screen, you should select the field with the ◄/ ►/ ▲/ ▼key and then select the
value with the ◄/ ►key pressed together with <Shift>. The selection should be
confirmed by <Enter>.
In all cases the <Enter> key is used for confirmation of changes and for closing the opened list. The list
is closed, ignoring any made changes by pressing the <ESC> key.
Information window
Some windows inform about the state of the instrument, available memory,
standards fulfilled by the unit, etc. To scroll through the window, use the ▲/ ▼
keys. To close such a window, press <ESC>.
Text editor window
There are windows used for text edition (i.e. the name of the file). Such windows
contain help information to guide on how to edit the text. The character which is
displayed inversely may be edited.
•Use the ◄/ ►key to select the 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.
•Use the ◄/ ►key pressed together with <Shift> to insert or delete the
position in the edited text.
►
Help information
In most windows, the last line or two lines contain help information: how to select
or modify the parameter’s value, change the character in the text line etc. For
example, Delete: Shift < meansthat you can delete the selected position with the
◄key pressed together with <Shift>.
Inactive parameters
If some functions or parameters are not available, the positions in the menu or
parameter lists linked with this function or parameter become inactive (the
selected line field will be in the frame with black background, not yellow). For
example, if Logger (path: <Menu> / Measurement / Logging / Logger Set.) is
switched off, some other Logging positions become not active!
3.2 POWERING OF THE INSTRUMENT
SVAN 971 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 12 h (6.0 V / 1.6 Ah). Instead of the ordinary alkaline cells, four AAA
rechargeable batteries can be used (a separate external charger is required for charging them). In
this case, using the best NiMH type, the operation time can be increased up to 16 h (4.8 V / 2.6 Ah)
•USB interface –100 mA HUB.

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For each power source, there is a different view presented in the Battery window of the Instrument list.
When the instrument is powered from internal batteries, the “Battery” icon is presented on the top line
of the display. When voltage of the batteries is too low for reliable measurements, the icon is red or
during attempt to switch the instrument on, the Low Battery! message occurs on the display for
2 seconds and the instrument switches off by itself. The fully charged set of 4 batteries ensures more
than 12 hours of continuous operation of the instrument (with Dim LCD switched on). The battery
condition can be checked with the Battery function. It is also presented continuously on the top line of
the display by means of the “battery” icon.
When there is a connection to the USB interface (USB Device socket is connected by the SC 156 cable
to a PC), the “Computer” icon is presented on the top of the display and in the Battery window, there
is the USB Power: Voltage: 5.00V message.
Note: In the case when “Battery” icon is red, it is strongly recommended to use USB
interfaceas soon as possible toensure reliable operation. If no suitableexternal power source
is provided the instrument will be switched off automatically after a short time!
Prolonging the internal source of the instrument’s power can be achieved by means of the LCD screen
Dim Mode. The settings of power saver function (Dim Mode) may be selected in the Screen Set.
window (path: <Menu> / Display / Screen Set.).
3.3 GETTING STARTED
Turning the instrument on
To switch the power on, press the <Shift> and
<Start/Stop> keys simultaneously. The instrument goes
through the self-test routine (in this time the
manufacturer's logo and the name of the instrument is
displayed) and then it enters the basic SPL view mode.
Starting measurements
To start a measurement, press the <Start/Stop> key. Results of the
measurement are displayed in the view mode that was active before turning the
instrument off. As an example, screen with one profile mode is presented.
One profile modeis always available for most Functions of the instrument. The measurement results can
also be presented in other display modes, which you may control - switch them on or off and adjust to
your needs.
Setting up measurement parameters
The instrument as sold has default settings which you may change, but always
return to them with the use of the Factory Settings option in the Auxiliary Setup
menu.
Next chapters of the manual will describe in detail what each parameter means
and how to change the instrument settings.
Main default settings
Withdefault settings, theinstrument hasa Simple user interface and isconfigured
as a Sound Level Meter (Measurement Function: Level Meter) to measure
sound pressure level by three virtual meters, so called profiles, with 1 second
delay from the <Start> key pressure, infinite integration time (Integration Period:
Inf), linear Leq integration (LEQ Integration: Linear), compensation of
microphone internal noise (Compensation Filter: Microphone), active logging
of the selected results (Lpeak, Lmax, Lmin and Leq) with 1 second step for all