Svantek SVAN 977A User manual

USER MANUAL
SVAN 977A
SOUND & VIBRATION
ANALYSER
Warsaw, 2020-03-05
Rev. 5.00
Copyright © 2020 SVANTEK.
All rights reserved.

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SVAN 977A 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 1.34.x (see the Unit Label
review to check version details).
The succeeding software revisions (marked with the higher numbers) can change the view of some screens
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 © 2020 Svantek Sp. z o.o.
All rights reserved.
Reproduction without permission is prohibited.
Trademarks
Trademarks or registered marks in this manual belong to their respective manufacturers.
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: [e-mail]

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SVAN 977A User Manual
CONTENTS
INDEX 8
1INTRODUCTION 11
1.1 SVAN 977A as Sound Level Meter & Analyser 12
1.2 SVAN 977A as Vibration Level Meter & Analyser 12
1.3 General features of SVAN 977A 12
1.4 Accessories included 13
1.5 Accessories available 13
1.6 Firmware options available 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 17
3GENERAL INFORMATION 18
3.1 Basis of the instrument’s control 18
3.1.1 Measurement mode 18
3.1.2 Configuration mode 18
3.2 Power of the instrument 22
3.3 Getting started 23
3.4 Description of icons 24
3.5 Data saving 26
3.6 Files downloading and uploading 30
3.7 Activation of optional functions 30
4FUNCTIONS OF THE INSTRUMENT –Function 32
4.1 Selecting the instrument mode –Mode 32
4.2 Measurement functions of the instrument - Measurement Function 32
4.3 Instrument’s calibration – Calibration 33
4.3.1 System Check 34
4.3.2 Calibration by Sensitivity (Acoustic signal) 34
4.3.3 Calibration by Sensitivity (Vibration signal) 35
4.3.4 Calibration by Measurement (Acoustic signal) 35
4.3.5 Calibration by Measurement (Vibration signal) 36
4.3.6 History of performed calibrations –Calibration History 37
4.3.7 Erasing calibration records - Clear Calibr. History 38
4.3.8 Automatic calibration –Auto Calibration 38
4.3.9 Post measurement calibration –Post Calibration 39
5CONFIGURING MEASUREMENT PARAMETERS –Measurement 40
5.1 Setting up general measurement parameters - General Settings 41
5.2 Setting up the measurement trigger –Measurement Trigger 43
5.3 Setting parameters for profiles –Profiles 46
5.4 Data logging –Logging 47

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5.4.1 Setting logger general parameters –Logger Setup 48
5.4.2 Selecting logger results –Logger Results 49
5.4.3 Selecting additional summary results for saving –Summary Results 50
5.4.4 Triggering the logger results saving –Logger Trigger 50
5.4.5 Setting up markers –Marker Setup 51
5.4.6 Wave recording settings –Wave Recording 52
5.5 Setting spectra –Spectrum 55
5.6 Selecting microphone compensation filters –Compensation Filter 55
5.7 Measurement range selection –Range 56
5.8 RPM measurement settings –RPM Measurement 57
5.9Setting up the exposure time - Exposure Time 58
5.10Statistical levels settings - Statistical Levels 58
5.11Programming the instrument’s internal timer – Timer 58
5.11.1Example of timer execution 59
5.12Advanced alarm function - Alarms 60
6CONFIGURING DATA VIEWING –Display 61
6.1 Activation of the display modes - Display Modes 61
6.1.1 Running SPL view 62
6.1.2 Single Profile view 62
6.1.3 Combined views 63
6.1.4 Logger view 65
6.1.5 Spectrum view 66
6.1.6 Statistics view 66
6.1.7 Meter Table view 67
6.1.8 GPS view 67
6.1.9 File information view 67
6.2 Adjusting plot views - Display Scale 67
6.3 Adjusting the logger view - Logger View 69
6.4 Setting the display brightness and power saver - Screen Setup 69
7MANAGING FILES –File 71
7.1 Managing files saved in the memory –File Manager 71
7.1.1 Assigning directory for data files saving –Set as Working Dir. 72
7.1.2 Opening files/directories –Open 72
7.1.3 Deleting files/directories –Delete 73
7.1.4 Erasing all files in a directory –Delete All 73
7.1.5 Renaming files/directories –Rename 74
7.1.6 Viewing information about files/directories –Info 74
7.2 Managing the setup files –Setup Manager 74
8CONFIGURING INSTRUMENT PARAMETERS –Instrument 76
8.1. Measurement auto start - Auto Start 76
8.2. Checking power –Battery 76
8.3. Interface parameters settings - Communication Ports 77

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SVAN 977A User Manual
8.4. External power settings- External Power 78
8.5. Selecting IEPE current supply - IEPE Current 78
8.6. Programming keyboard –Keyboard Settings 78
8.7. Setting parameters of the I/O port - Multifunction I/O 79
8.8. Programming the instrument’s internal Real Time Clock – RTC 81
8.9. Remote communication settings - Wireless Transfer 81
8.9.1. Selecting network type –Network 82
8.9.2. Configuring modem basic settings –Modem 82
8.9.3. Configuring connections - Modem Connection 83
8.9.4. Configuring SMS service - SMS Options 84
8.9.5. Configuring e-mail service - E-mail Settings 85
8.10. Introducing the instrument name - Unit Name 86
8.11. Checking the instrument properties - Unit Label 86
9AUXILIARY SETTINGS –Auxiliary Setup 87
9.1. Selecting the user interface language –Language 87
9.2. Restoring the factory settings –Factory Settings 87
9.3. Setting the reference levels - Reference Levels 87
9.4. Selecting units for vibration results - Vibration Units 88
9.5. Warnings setup –Warnings 88
10 1/1-OCTAVE AND 1/3-OCTAVE ANALYSER 90
10.1Selecting the 1/1 Octave or 1/3 Octave function 90
10.2Configuring 1/1 or 1/3-octave analyser 91
10.2.1General settings for 1/1 and 1/3-octave analysis –General Settings 91
10.2.2Selecting the measurement range for 1/1 and 1/3-octave analysis - Range 91
10.2.3Logging of 1/1-octave and 1/3-octave spectra –Logging 91
10.2.4Setting parameters of 1/1-octave and 1/3-octave analysis - Spectrum 92
10.3Configuring 1/1 and 1/3 octave spectra views 94
10.3.1Presentation of 1/1 and 1/3 octave spectra 94
10.3.2Adjusting scales of the spectrum plot –Display Scale 95
10.3.3Selecting spectra to be viewed - Spectrum View 96
10.3.4Changing spectrum type in Vibration modes - Spectrum Type 97
11 FFT ANALYSER 98
11.1Selecting FFT function 98
11.2Configuring FFT analyser 98
11.2.1General measurement settings of FFT analysis –General Settings 98
11.2.2Selecting measurement range for FFT analysis - Range 98
11.2.3Logging of FFT spectra –Logging 99
11.2.4Setting parameters of FFT analysis - FFT 99
11.3Configuring FFT spectra view 100
11.3.1Presentation of FFT spectra 100
11.3.2Setting up the scale of spectrum plot - Display Scale 101
11.3.3Selection of spectra to be viewed - Spectrum View 102

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11.3.4Changing spectrum type in Vibration modes - Spectrum Type 103
12 REVERBERATION TIME MEASUREMENTS - RT60 104
12.1Selecting the RT 60 function 104
12.2Settings of the RT60 analysis 104
12.3Configuring RT60 views 107
12.4Start RT60 measurements 107
12.5Viewing of RT60 results 109
13 REMOTE CONTROL TOOLS 112
14 MAINTENANCE 113
14.1Powering of the instrument 113
14.2Memory card extraction and insertion 114
14.3Transducers 114
14.4Resetting the instrument 115
14.5Firmware upgrade 116
14.6Preservation of internal batteries 116
14.7Transportation and storage 116
14.8Cleaning 116
14.9Troubleshooting 117
15 GLOSSARY 118
15.1Modes and Measurement Functions 118
15.2Calibration 119
15.3Definitions of measured results 120
15.4Measurement parameters 123
15.5Display parameters 136
15.6Instrument parameters 140
15.7Auxiliary parameters 148
APPENDIX A. REMOTE CONTROL 149
A.1. Function #1 –Input/Output of the control setting codes 149
A.2. Function #2 –Read out of the main measurement results 150
A.3. Function #3 –Read out of the measurement results in 1/x OCTAVE or FFT mode 152
A.4. Function #7 –Special control functions 152
A.5. Function #D –Read / Write the data files from the external memory (SD-card) 162
A.6. Control setting codes 163
APPENDIX B. DATA FILE STRUCTURES (firmware revision 1.21) 170
B.1. General structure of the SVAN 977 files 170
B.2. Structure of the file containing results from logger’s file 194
B.2.1. The contents of the logger file 195
B.2.1.1. Record with the results 195
B.2.1.2. Record with the state of the markers 196

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B.2.1.3. Record with the breaks in the results registration 197
B.2.1.4. Record with the breaks account PAUSE in the results registration 197
B.2.1.5. Record with the wave file name 197
B.2.1.6. Record with Summary Results 197
B.2.1.8. Record with METEO data 198
B.2.1.9. Record with name of the comment file 198
B.3. Structure of the SETUP file 199
B.4. Date and time 199
APPENDIX C. TECHNICAL SPECIFICATIONS 200
C.1. Specification of SVAN 977A as a Sound Level Meter 200
C.1.1 Specification of SVAN 977A as SLM in the standard configuration 200
C.1.2 Effect of the SA 22 windscreen 219
C.1.3 Effect of the SA 277 Outdoor Protection Unit 221
C.2. Specification of SVAN 977A as a Vibration Level Meter 221
C.3. Specification of SVAN 977A as 1/1 OCTAVE and 1/3 OCTAVE analyser 227
C.4. Frequency characteristics of the implemented broadband digital filters 243
C.5. Miscellaneous specification of SVAN 977A 250
C.6. Specification of SV 80 accelerometer 256
C.7. Using of the SA 277 Outdoor Microphone Protection Unit 257
C.8. Declaration of Conformity 288
APPENDIX D. DEFINITIONS AND FORMULAE OF MEASURED VALUES 290
D.1. Sound Level Meter 290
D.1.1 Basic terms and definitions (SLM mode) 290
D.1.2 Definitions and formulas of SLM results 291
D.2. Vibration Level Meter 294
D.2.1 Basic terms and definitions (VLM mode) 294
D.2.2 Definitions and formulas of the VLM result 294
D.3. Statistical levels –Lnn definition 295
APPENDIX E. REVERBERATION TIME CALCULATIONS 297
E.1. Introduction 297
E.2. Definitions and calculation of the RT 60 reverberation time 298
E.3. Description of the decay curve recording in different measurement methods 300

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SVAN 977A User Manual
INDEX
1
1/1 Octave · 32, 90
1/3 Octave · 32, 90
A
Acceleration · 97, 103
Accelerometer · 115
Accelerometer sensitivity · 35
Accessories · 13
Alarm e-mail · 81
Alarm level · 80
Alarm pulse · 80
Alarm SMS · 80
Alarm source · 80
Alarms · 60
Analog Out · 79
APN · 84
Audio sampling · 52
Auto calibration · 38
Auto start · 76
Automatic file saving · 27, 29
Auxiliary settings · 87
Averaged spectrum · 96, 102
Averaging · 99
B
Band · 92, 99
Battery · 22, 76
Bits per sample · 52
Bluetooth · 77
Brightness · 70
C
Calibration · 33
Calibration by measurement · 35, 36
Calibration by sensitivity · 34, 35
Calibration factor · 34, 35, 36
Calibration history · 37
Calibration level · 34, 35, 36
Calibration result · 35, 36
Cleaning · 116
Clear calibration history · 38
Combined view · 63
Communication ports · 77
Compensation filter · 55
Complex parameter · 20
Configuration mode · 18
Control keys · 14
D
Data port · 84
Data protocol · 83
Day time limits · 43
Decay · 104
Decay method · 107
Decimal mark · 69, 96
Default settings · 23
Deleting all files · 73
Deleting file · 73
Detector · 46
Diffuse field compensation · 55
Digital In · 79
Digital Out · 79
Directory · 26, 72
Displacement · 97, 103
Display mode · 18, 61, 94, 100
Display scale · 67, 95, 101
Display settings · 61
DNS server · 84
Downloading · 30
Dynamics · 68, 96, 102
DynDNS server · 84
E
E-mail · 83, 85
Exponential integration · 42
Exposure time · 58
External battery · 22
External DC · 22
External power · 78
External trigger · 45, 54
F
Factory settings · 23, 87
Fast · 46
FFT · 32, 98, 99
FFT window · 99
File · 26, 72
File info view · 67
File information · 74
File manager · 26, 71
File name · 53
Files · 71
Filter · 46, 52, 93, 99
Firmware options · 13
Flat Top · 99
Free field compensation · 55
Frequency range · 105
Function · 32

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SVAN 977A User Manual
G
General settings · 41, 91, 98
GPRS · 82
GPS · 77
GPS view · 67
Gradient · 46
Gradient trigger · 45
Grid · 69, 96, 102
H
Hanning · 99
Help information · 21
High range · 56
I
I/O active level · 80
I/O function · 80
I/O mode · 79
I/O polarisation · 80
Icons · 24
IEPE current · 78
Impulse · 46, 104
Impulse method · 108
Impulse response method · 104
Inactive position · 21
Infinite integration period · 41
Information screen · 20
Input/output · 17
Instantaneous spectrum · 96, 102
Instrument settings · 76
Integration period · 41, 47, 91, 98
Integration period trigger · 54
Interface · 77
Internet configuration · 82
Interrupted noise method · 104
K
Kaiser-Bessel · 99
Keyboard · 14, 78
L
Language · 87
Level meter · 32
Level trigger · 44, 50, 54
Linear integration · 42
Lines · 99
List of options · 19
List of parameters · 19
Logger · 27, 28, 47, 48
Logger name · 48
Logger results · 49, 91, 99
Logger split · 49
Logger step · 47, 48, 91, 99
Logger trigger · 50
Logger view · 65, 69
Logging · 47, 91, 99
Low range · 56
M
Main menu · 19
Maintenance · 113
Manual file saving · 28, 30
Marker · 51
Matrix of parameters · 20
Max spectrum · 50, 96, 102
Measurement function · 32, 90, 98, 104
Measurement mode · 18
Measurement settings · 40
Measurement trigger · 43
Memory · 26
Menu position · 19
Meteo · 49, 50
Microphone · 114
Microphone sensitivity · 34
Min spectrum · 50, 96, 102
Mode · 32
Modem · 82
Modem connection · 83
Multifunction I/O · 79
Multiple timer · 58
N
NC spectrum · 97
Network · 82
Noise margin · 106
NR spectrum · 97
O
Opening file · 72
Opening position · 19
Optional functions · 30
Outdoor airport compensation · 55
Outdoor environment compensation · 55
P
Post calibration · 39
Post-trigger · 51
Power saver · 70
Powering · 22, 113
Preservation · 116
Pre-trigger · 51, 55
Profiles · 46
R
Range · 56, 91, 98
Real-time clock · 81
Reconnection · 83

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SVAN 977A User Manual
Recording on trigger · 52
Recording time · 53, 55, 105
Rectangle · 99
Reference levels · 87
Registration port · 84
Remote control · 112
Renaming file · 74
Repetition cycles · 42, 47, 91, 98
Reset · 115
Resolution · 68, 95
Results file · 28
Results presentation · 18
Results view · 61, 94, 100
RMS detector · 93
RMS integration · 42
Rolling time · 43
RPM measurement · 57
RS232 · 77
RT averaging · 105
RT integrated data · 107
RT method · 105
RT octave · 105
RT raw data · 107
RT smoothed data · 107
RT smoothing · 107
RT step · 105
RT60 · 32, 104
RT60 settings · 104
RT60 view · 107, 109
RTC · 81
Running SPL · 23, 62
S
Save setup · 74
Scale · 68, 95, 101
Screen dim · 70
Screen setup · 69
SD card · 26, 114
Serial port · 77
Server address · 83
Setup file · 30
Setup manager · 26, 74
Signal gain · 53
Signal recording · 52
Sim authentication · 83
Single Profile view · 62
Single timer · 58
Slope trigger · 44, 53
Slow · 46
SMS · 83, 84
Sound analyser · 12
Sound level meter · 12
Sound meter · 32
Source type · 80
Spectrum · 55, 94, 100
Spectrum settings · 92
Spectrum statistics · 50
Spectrum type · 97, 103
Spectrum view · 66, 94, 100, 102
Start delay · 41
Start measurements · 23
Start synchronisation · 41
Statistical levels · 58
Statistics · 43, 50
Statistics view · 66
Storage · 116
Summary results · 28, 47, 48, 50, 91, 99
Svantek mail · 85
System check · 34
T
TCP · 83
Text editor · 20
Timer · 58
Total value · 90
Transducers · 114
Trigger · 43, 50
Trigger level · 46, 51, 53, 55
Trigger on marker · 53
Trigger period · 53, 55
Trigger pulse · 80
Trigger source · 45, 51, 53, 55
Troubleshooting · 117
Turn on · 23
U
Unit label · 86
Upgrade · 116
Uploading · 30
USB · 22
V
Velocity · 97, 103
Vibration analyser · 12
Vibration level meter · 12
Vibration meter · 32
Vibration units · 88
Viewed spectra · 96
W
Warnings · 88
Wave file · 29
Wave format · 52
Wave recording · 52
Wave trigger · 53
Windscreen compensation · 55
Wireless transfer · 81
Working directory · 72

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SVAN 977A User Manual
1 INTRODUCTION
SVAN 977A is an all-digital, Class 1 Sound & Vibration level meter designed for
general acoustic and vibration, environmental noise, occupational health and
building acoustic measurements.
Three acoustic or vibration user configurable profiles allow parallel
measurements with independently defined frequency filters and RMS detector
time constants.Each profile provides significant number of results (like Spl,Leq,
Sel, Lden, LEPd, Ltm3, LTeq, Peak,Max and Min as well as ten statistics, two
rolling Leq, expectedLeq value, standard Leq deviation and noise criterium and
noise ratio indexes in case of sound measurements or RMS,Ovl,Peak,P-P in
case of vibration measurements). Advanced time history logging for each profile
provides complete information about the measured signal using the SD-card
fitted in the bottom of the meter and can be easy downloaded to any PC using
the USB interface and SvanPC++ software.
All required weighting filters: A, B, C, Z, U, AU and LF for 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.
Using the computational power of its digital signal processor SVAN 977A can,
simultaneously to the meter mode, perform thereal time1/1 Octave or optionally
1/3 Octave analysis including calculations of statistical levels or can optionally
perform FFT analysis.
The built-in frequency analyser offers 1/1octave real-time analysis as a standard
feature and 1/3 octave and FFT as optional functions. The frequency analysis is
logged together with the time history of sound or vibration meter results.
Time domain waveform signal recording on the SD-cardis available as an option
and advanced trigger and alarm functions are available in the standard version
of this instrument.
For building acoustic applications, SVAN 977A offers Reverberation Time
measurements (RT60) option and BA Assistant application for smartphones.
A fast USB 1.1 interface (12 MHz) creates a real-time link for the PC "front-end" application of SVAN 977A. With
the use of optional interfaces (RS 232) the instrument can be remotely controlled from the PC with the use of
SvanPC++ software.
SVAN 977A is equipped with Bluetooth®1v.2.0+EDR module and can be remotely control by the SvanMOBILE
smartphone application for the Android platform.
Working as a part of SV 277PRO monitoring station, equipped with 3G modem, SVAN 977A 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,
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 –a separate
charger is required). Powering the instrument from the 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 977A User Manual
1.1 SVAN 977A AS SOUND LEVEL METER &ANALYSER
•Noise measurements (Peak, Max, Min, Spl, Leq, SEL, Lden, LEPd, Ltm3, LTeq, Leq statistics (Lnn),
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 20 Hz to 20 kHz with the
SV 7052E microphone.
•Parallel Impulse, Fast and Slow detectorsfor the measurements with A, B, C, Z, U, UA and LF frequency
filters.
•Two measurement ranges 25 dB RMS(A) ÷ 123 dB Peak (Low) and 35 dB RMS(A) ÷ 140 dB Peak (High).
•1/1 Octave andoptional 1/3 Octave realtime analysis -10 filterswith centre frequencies 31.5 Hz ÷ 16 kHz
and 31 filters with centre frequencies 20 Hz ÷ 20 kHz, in accordance with Class 1 IEC 61260-1:2014.
•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.
1.2 SVAN 977A AS 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 measurements.
•HP, HP1, HP3, HP10, Vel1,Vel3,Vel10,VelMF,Dil1,Dil3,Dil10 and Wh weighting filters.
•1/1 Octave and optional 1/3 Octave real time analysis - 15 filters with centre frequencies 1 Hz ÷16 kHz,
and 45 filters with centre frequencies 0.8 Hz ÷ 20 kHz, Class 1 IEC 61260-1: 2014.
•Optional RPM measurement with the use of RPM probe, connected to the I/O socket of SVAN 977A.
•Optional FFT analysis with the single Total overall value, performed with preselected frequency weighting
filters and screens.
1.3 GENERAL FEATURES OF SVAN 977A
•Advanced Data Logger function including spectrum logging on the micro SD card
•1/1 and 1/3 octave and FFT analyser (1/3 octave and FFT –optionally)
•Time domain waveform signal recording (option)
•Advanced trigger and alarm functions
•USB 1.1 Client interface (real time PC "front end" application supported)
•RS 232 interface
•Bluetooth®v.2.0+EDR module
•Integration time programmable up to 24 h
•Power supply by four AA rechargeable or standard batteries
•Handheld, light weight and robust case
•Easy to use with menu driven user interface

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SVAN 977A User Manual
1.4 ACCESSORIES INCLUDED
•SV 7052E prepolarised ½” microphone with nominal sensitivity 35 mV/Pa
•SV 12L microphone preamplifier with IEPE power supply
•SA 22 foam windscreen
•SC 16 USB 1.1 cable
•SA 62 16 GB memory card - Kingston MicroSD HC Class 4
•four AA alkaline batteries
•SvanPC++ download and viewing software.
1.5 ACCESSORIES AVAILABLE
•SA 277 microphone outdoor protection kit for the SVAN 977A microphone (microphone,
desiccator and cable not included)
•SA 270D desiccator for outdoor kit
•SC 26 extension cable for SV 12L (TNC plug to TNC socket)
•SV 36 Class 1 sound calibrator: 94/114 dB@1000 Hz
•SA 17A external battery pack using 6 x AA batteries
•SA 143 carrying case for SVAN 977A and accessories (lightweight)
•SA 79 carrying case for SVAN 977A and accessories (waterproof)
•SA 47 carrying bag for SVAN 977A and accessories (fabric material)
•SV 55 interface RS 232 for SVAN 977A
•SV 80 general purpose vibration accelerometer 100 mV/g (10 mV/ms-2)
•SC 27 coiled cable for accelerometer 2 m
•SA 27/10-32 mounting magnetic base for accelerometer
•SA 15 power supply
•SA 31 external charger for four AA rechargeable batteries
•SV 58_H GPS module with USB HOST plug.
1.6 FIRMWARE OPTIONS AVAILABLE
•SV 977_2 1/3 octave analysis for SVAN 977A
•SV 977_4 FFT analysis option for SVAN 977A
•SV 977_5 RT60 option for SVAN 977A
•SV 977_8 RPM Rotation measurement option (excluding Laser Tachometer) for SVAN 977A
•SV 977_15 Time domain waveform signal recording (to the micro SD-card: *.srt or *.wav format) for
SVAN 977A
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 977A User Manual
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 selected Menu list. Thanks to that, the number of keys for control
of the instrument has been reduced to nine 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:
•<ENTER>,<Menu>,<Save>,
•<ESC>, <Cal.>,<S/P>,
•<Shift>, [Markers]
•<Alt>, [Markers]
•▲, ◄, ►, ▼
•<Start/Stop>.
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>
The second function of a key (for example, <Menu>) can be used when the <Shift> key
is pressed together with <Enter> 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).
<Alt>
This key enables choosing the third key function of the <Save> and <Pause> keys. To
select the third function, press the <Alt> and the second key together. You can also
program one or two finger operations same way as for the <Shift> key.
Note: Changing the “one or two fingers” mode is performed in the Keyboard Settings screen of the
Instrument list (see description of the Instrument list).
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.

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(<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 3.5).
<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;
•select a parameter value in an active position (e.g. filter Z, A, Betc., Start Delay
period: 1s, 2s, 3s, … etc.);
•control acursor inthe 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 a 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, Bor C, 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.
<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 and Peak, P–P, Max or RMS for Vibration measurements) in
profiles should be active (path: <Menu> / Measurement / Logging / Logger Results).

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[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.
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.
An example presentation of the markers on the time history plot is shown below.
<Shift> / <Alt>
▲
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

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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.
It is the TNC compatible socket. The SV 12L microphone preamplifier has a
specially designed matching TNC plug and a locking screw to secure the
preamplifier to the meter body. The accelerometers must be connected to
the instrument also using the TNC connector. The microphone and
accelerometer attaching are described in Chapter 14.3. The full description
of the signals connected to the socket 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: 7-16V, Serial, USB and I/O.
There is a memory micro SD-card socket (Memory Card) under the bottom
cover of the instrument and spaces for the 4 x AA batteries.
The USB socket is the USB Device 1.1 interface –a serial interface working
with 12 MHz clock. Thanks to its speed, it is widely used in all PCs. In the
instrument, the standard 4-pin socket is used.
The Serial socket is the Serial Port with RS232 data transfer format in TTL
logic standard by means of the SV 55 interface. It conforms to the EIA
Standard RS 232C and enables remote programming of all instrument
functions and transmission to and from the instrument with speed from 300
bit/s to 115200 bit/s.
The additional multi-purpose input/output socket, called I/O, is a 3.5 mm jack
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 on this socket. This signal can be recorded using a magnetic
recorder or observed on an oscilloscope. The Digital Input as 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 7-16V adapter to the 7-16V 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: 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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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.
Hold both keys down for 1 or 2 seconds and release to switch on.
The instrument is controlled by means of nine keyson the keypad. Usingthese keys, one canaccess all available
functions and change the value of all available parameters.
The instrument is equipped with the super contrast OLED color display (320 x 240 pixels), which displays the
measurement results and the configuration menu.
3.1 BASIS OF THE INSTRUMENT’S CONTROL
The instrument has two general modes of operation: measurement performance and results preview mode and
configuration mode with the use of Menu functionality.
3.1.1 Measurement mode
The measurement results can be viewed in different view modes, the set of which depend on the selected
Measurement Function and which you can change and activate/deactivate.
Display modes
Display modes present some measurement results as well as additional
information in the way of icons regarding:
•instrument status: memory, power, real time, Bluetooth, GPS, connection
with the modem etc.;
•measurement status: measurement function, measurement elapsed time,
measurement start/stop/pause, trigger, logger etc.;
•measurement parameters: measured result, profile number, file name,
detector type, filter etc.
Measurement results can be presented in
different views, so called display modes, some
of which are always available, and some can
be activated or deactivated.
Some views present numerical and some
graphical results, like on the right-hand
example: time-history plot and spectrum.
In some views the screen is divided into two
parts to show more numerical results in
different formats or both numerical and
graphical results.
If you are in the measurement mode, you can
switch between views using the ▲/ ▼ keys
pressed together with <Shift>.
All icons are described in Chapter 3.4, other fields and view control functions - in Chapter 6.
3.1.2 Configuration mode
To configure a measurement or the instrument, use the menu mode, which is switched with the <Menu> key.
The menu consists of different type of screens, which include main menu, sub-menu, lists of options, lists of
parameters, text editor screens, information screens etc.

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Main menu
The main Menu contains the headers of six sections (sub-menu), which group
configuration settings by feature. The main Menu is opened after pressing the
<Menu> (<Shift> +<ENTER>) key. The main Menu list contains the following
sections: Function, Measurement, Display, File, Instrument and
Auxiliary Setup.
Recent Items list
A double pressing of the <Menu> key opens the list ofrecently used menu items.
This enables accessing most frequently usedlistsof parameters quickly, without
the necessity of passing through the whole menu path.
Selecting position
The desired position in the menu list is
selecting with the ▲ / ▼ key.
▼
Opening position
After the selection of the desired position in
the menulist, press the <ENTER> key to open
it. After this operation, a new sub-menu,
option list, parameter list or information screen
appears on the display.
<ENT>
List of parameters
The list of parameters contains parameters the value of which is selected from
the available range or set.
•The desired position in a list is accessed with the ▲ / ▼ key.
•Changing value in a selected position is performed with the ◄/ ► key.
•The <ENTER> key saves all performed changes in the list of parameters.
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 the you
release the pressed buttons.
You may change the numerical parameter value with a larger step (usually 10) with the ◄/ ►key pressed
together with <Shift>.
List of options
The option list consists of different options, from which only one may be
selected. The selection of the option is performed in the following way. Highlight
the desired option with the ▲/ ▼key and then press <ENTER>. This option
becomes active and the list is closed. After re-entering this list again, the last
selected option will be marked.

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Matrix of parameters
When the list of parameters consists of more than one column you may change:
•column with the ◄/ ► key
•line in the same column with the ▲ / ▼ key
•value in a selected position with the ◄/ ►and <Alt> keys
•all values in the same column with the ▲/ ▼and <Shift> keys
•all values in the same line with the ◄/►and <Shift> keys.
Complex parameters
For complex parameters, consisting of more than
one value field like Start Hour or Start Date, you
should first select thefield and then change thevalue
of this field in accordance with the help information
on the bottom of the screen.
In all cases the <ENTER> key is used for confirmation of the selection in a position and for closing the opened
list of parameters. The list of parameters is closed, ignoring any changes made in it with the <ESC> key.
Information screen
Some screens inform about the state of the instrument, available memory,
standards fulfilled by the instrument, etc. To scroll through the screen, use the
▲/ ▼key. To close such a screen, press <ENTER> or <ESC>.
Text editor screen
In the text editor screens, you may edit text
lines (file names, directory name etc.) The text
editor screen is opened with the ◄ / ► key
when the position with the text parameter is
selected.
These screens contain help information to
guide on how to edit the text.
►
The edited text is displayed in the upper line
and the character, whichis displayedinversely
may be changed, deleted or a space may be
inserted before it.
•You can select thepositionof the character
in the edited text with the ◄/ ► key.
►
•You can insert or delete the position in the
edited text with the ◄/ ► key pressed
together with <Alt>.
<Alt>/►