Svantek SVAN 977W User manual

USER MANUAL
SVAN 977W
SOUND &
VIBRATION ANALYSER
Warsaw, February 2017
Copyright © 2017 SVANTEK. All rights reserved.

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SVANTEK 977W User Manual
Note: On account of continuous product improvement SVANTEK reserves the right to make
changes to product specifications without 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 1.26 and bootstrap revision named 1.06 (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 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 © 2016 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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SVANTEK 977W User Manual
CONTENTS
1. INTRODUCTION 7
1.1. SVAN 977W as Sound Level Meter & Analyser 8
1.2. SVAN 977W as Vibration Level Meter & Analyser 8
1.3. General features of SVAN 977W 8
1.4. Accessories included 8
1.5. Accessories available 9
1.6. Software options available 9
2. MANUAL CONTROL OF THE INSTRUMENT 10
2.1 Control push-buttons on the front panel 10
2.2 Input and output sockets of the instrument 13
3. INSTRUMENT SETTING 14
3.1. Basis of the instrument’s control 14
3.2. Powering of the instrument 16
3.3. Turning the instrument on 17
3.4. Description of icons 19
3.5. Data storage 20
3.1. Files downloading and uploading 24
4. FUNCTIONS OF THE INSTRUMENT –Function 25
4.1. Selection of the instrument mode –Mode 25
4.2. Measurement functions of the instrument - Measurement Function 25
4.3. Instrument’s calibration – Calibration 26
4.3.1. System Check 27
4.3.2. Calibration by Sensitivity in case of Acoustic signal 27
4.3.3. Calibration by Sensitivity in case of Vibration signal 28
4.3.4. Calibration By Measurement in case of Acoustic signal 29
4.3.5. Calibration By Measurement in case of Vibration signal 30
4.3.6. History of calibrations –Calibration History 31
4.3.7. Clear calibration records - Clear Calibr. History 31
4.3.8. Post measurement calibration –Post Calibration 32
5. MEASUREMENT PARAMETERS SETTING –Measurement 33
5.1 Setting the measurement parameters - General Settings 34
5.2 Setting the measurement trigger –Measurement Trigger 36
5.3 Setting parameters for profiles –Profiles 37
5.4 Setting of the data logging –Logging 38
5.4.1 Setting the logger general parameters –Logger Setup 39
5.4.2 Selection of results for logging –Logger Results 41
5.4.3 Selection of summary results to be saved in the file –Summary Results 41
5.4.4 Setting the logger trigger parameters –Logger Trigger 42

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SVANTEK 977W User Manual
5.4.5 Setting the event recording –Event Recording 43
5.4.6 Setting the markers –Marker Setup 45
5.4.7 Setting the wave recording –Wave Recording 46
5.5 Setting the 1/1 Octave and 1/3 Octave spectra –Spectrum 48
5.6 Selection of the microphone compensation filters –Compensation Filter 48
5.7 Setting the measurement range –Range 48
5.8 Setting the RPM measurements –RPM 49
5.9 Setting the exposure time - Exposure Time 50
5.10Setting ten statistical levels - Statistical Levels 50
5.11Programming the instrument’s internal timer – Timer 51
5.11.1 Example timer execution 52
5.12Advanced alarm function - Alarms 52
6. SETTING THE DATA VIEW –Display 53
6.1 Selection of the view modes - Display Modes 53
6.2 Setting the units and scale of result presentation - Display Scale 58
6.3 Setting view of the logger plot - Logger View 60
6.4 Setting the display brightness and power saver - Screen Setup 60
7. MANAGING THE FILES –File 62
7.1 Managing files saved in the external memory –File Manager 63
7.1.1 Assigning the directory for saved files –Set as Working Dir. 63
7.1.2 Opening file –Open 64
7.1.3 Deleting file/directory –Delete 64
7.1.4 Erasing all files in a directory –Delete All 64
7.1.5 Renaming files –Rename 65
7.1.6 Viewing information about files –Info 65
7.2 Managing the setup files –Setup Manager 65
8. SETTING THE HARDWARE PARAMETERS –Instrument 67
8.1. Measurement auto start - Auto Start 67
8.2. Checking the instrument powering –Battery 67
8.3. Setting the interface parameters - Communication Ports 68
8.4. Setting the external power parameters - External Power 69
8.5. Selection of the IEPE current supply - IEPE Current 69
8.6. Programming the keyboard –Keyboard Settings 69
8.7. Setting parameters of the I/O port - Multifunction I/O 70
8.8. Setting the instrument’s internal Real Time Clock – RTC 72
8.9. Setting the remote communication - Wireless Transfer 73
8.9.1. Selection of the network type –Network 73
8.9.2. Configuration of modem basic settings –Modem 73
8.9.3. Setting of support modem options - Modem Connection 75

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SVANTEK 977W User Manual
8.9.4. Configuration of SMS service - SMS Option 76
8.9.5. Configuration of e-mail service - E-mail Settings 76
8.10. Checking of the instrument specification - Unit Label 77
9. SETTING THE AUXILIARY PARAMETRS –Auxiliary Setup 78
9.1. Setting language of the user interface –Language 78
9.2. Restoring the factory settings –Factory Settings 78
9.3. Setting the reference levels - Reference Levels 79
9.4. Selection of the units for vibration results - Vibration Units 79
9.5. Warnings setup –Warnings 79
10. WELMEC SETTINGS –Welmec 81
10.1. Viewing data records –Data Logger 81
10.1.1. Viewing all data records –All Records 81
10.1.2. Selecting data records by ID –Find Records by ID 82
10.1.3. Selecting data records by date –Find Records by Date 82
10.1.4. Clearing all data records older than 2 years –Clear Records 83
10.2. Viewing event records –Event Logger 83
10.2.1. Viewing all event records –All Records 83
10.2.2. Filtering event records –Filter Records 85
10.2.3. Selecting event records by ID –Find Records by ID 85
10.2.4. Selecting event records by date –Find Records by Date 86
10.3. Data Logger dumping –Data Dump 86
10.4. Firmware memory dumping –Program Dump 86
10.5. Status of “welmec memory” – Status 87
10.6. Modification of Welmec related parameters –Service 87
10.6.1. Setting the real-time clock –RTC 87
10.6.2. Instrument calibration –Calibration 88
10.6.3. Setting the preamplifier serial number –Preamplifier 90
10.6.4. Setting the microphone serial number –Microphone 90
10.6.5. Repair registration –Register Repair 90
11. 1/1 AND 1/3 OCTAVE ANALYSER 91
11.1. Selection of the 1/1 Octave or 1/3 Octave functions 91
11.2. Setting the 1/1 Octave or 1/3 Octave analyser 92
11.2.1. Setting the measurement range for 1/1 Octave and 1/3 Octave - Range 92
11.2.2. Setting the parameters of 1/1 Octave and 1/3 Octave analysis - Spectrum 93
11.3. Saving the 1/1 or 1/3 Octave spectra as a time history –Logger Results 95
11.4. Setting the 1/1 Octave and 1/3 Octave spectra view 95
11.3.1. Presentation of 1/1 Octave and 1/3 Octave spectra 95
11.3.2. Setting scale of the spectrum plot - Scale 96
11.3.3. Selection of the spectra to be viewed - Spectrum View 97

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SVANTEK 977W User Manual
11.3.4. Selection of the spectrum type in Vibration mode - Spectrum Type 98
12. FFT ANALYSER 99
12.1. Selection of the FFT function 99
12.2. Setting the FFT analyser 99
12.2.1. Setting the measurement range for FFT - Range 100
12.2.2. Setting the parameters of FFT analysis - FFT 100
12.3. Saving the FFT spectra as a time history - Logger Results 101
12.4. Setting the FFT spectra view 101
12.2.3. Presentation of FFT spectra 102
12.2.4. Setting scale of spectrum plot - Scale 103
12.2.5. Selecting the spectrum types to be viewed - Spectrum View 104
12.2.6. Selection of the spectrum type in Vibration mode - Spectrum Type 104
13. REVERBERATION TIME MEASUREMENT - RT60 105
13.1. Selection of RT 60 function 105
13.2. Setting the RT60 analysis 105
13.3. Setting the RT60 view 108
13.4. Start RT60 measurements 108
13.5. Viewing of the RT60 results 110
14. MAINTENANCE 113
14.1. Powering the instrument 113
14.2. Memory card extraction and insertion 113
14.3. Transducers 114
14.4. Resetting the instrument 115
14.5. Firmware upgrade 115
14.6. Storing the instrument 116
14.7. Transportation and carrying 116
14.8. Cleaning 116
14.9. Troubleshooting 116
APPENDIXES
A. REMOTE CONTROL
B. DATA FILE STRUCTURES
C. TECHNICAL SPECIFICATIONS
D. DEFINITIONS AND FORMULAE OF MEASURED VALUES
H. REVERBERATION TIME
L. ADVANCED ALARMS

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SVANTEK 977W User Manual
1. INTRODUCTION
The SVAN 977W is an all-digital, Class 1 Sound & Vibration level meter (SLM
and VLM) as well as a real time 1/1 or 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 providessignificant number of results (like Spl,Leq,
Sel, Lden, LEPd, Ltm3, Ltm5, LN%,LR15,LR60,Ovl,Peak,Max and Min 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 external 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, 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.
Using the computational power of its digital signal processor the SVAN 977W
instrument can, simultaneously to the meter mode, perform the real time
1/1 Octave or 1/3 Octave analysis including calculations of statistical levels.
The instrument conforms the WELMEC requirements for built-for-purpose
measuring instrument (type P) for acoustic measurements.
Time domain waveform signal recording on the external SD-card is available as
an option and advanced trigger and alarm functions are available in the standard
version of this instrument.
A fast USB 1.1 interface (12 MHz) creates a real-time link for the PC "front-end" application of the SVAN 977W
instrument. With the use of optional interfaces (RS 232) the instrument can be remotely controlled from the PC
with the use of SvanPC++ software.
SVAN 977W is equipped with Bluetooth®1v.2.0+EDR module and can be remotely control by the SvanMOBILE
Android platform smartphone application.
Working as a part of SV 277PRO monitoring station, equipped with 3G modem, SVAN 977W can transfer
measured data via Internet to the 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 extended 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.
Robust and lightweight design enhances the exceptional features of this new generation sound and vibration
instrument.
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“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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SVANTEK 977W User Manual
1.1. SVAN 977W as Sound Level Meter & Analyser
noise measurements (Spl, Lmax, Lmin, Lpeak, Leq, Sel, Lden, LEPd, Ltm3, Ltm5 and 10 x LN%
statistics) in accordance with Type 1 IEC 61672-1:2013 accuracy in the frequency range 20 Hz to 20 kHz
with the SV 7052 microphone (3.15 Hz ÷ 20 kHz with GRAS 40AE microphone)
parallel Impulse, Fast and Slow detectors for the measurements with A, B, Cand Zfrequency filters
two measurement ranges 25 dB RMS(A) ÷ 123 dB Peak (Low) and 35 dB RMS(A) ÷ 140 dB Peak (High)
1/1 Octave and 1/3 Octave real time analysis - 10 filters with centre frequencies 31,5 Hz ÷ 16 kHz, and
31 filters with centre frequencies 20 Hz ÷ 20 kHz, in accordance with Type 1 IEC 61260-1: 2014.
1.2. SVAN 977W as Vibration Level Meter & Analyser
General Vibration measurements (acceleration, velocity and displacement) and optionally HVM meeting
ISO 8041:2005 and ISO 10816-1: 1995 standards in thefrequency 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, MTVV or Max, Peak, Peak–Peak measurements.
HP, HP1, HP3, HP10, Vel1,Vel3,Vel10,VelMF,Dil1,Dil3,Dil10 and Wh weighting filters.
1/1 Octave and 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, Type 1 IEC 61260-1: 2014.
1.3. General features of SVAN 977W
Conforms the WELMEC requirements for type P instrument for acoustic measurements
Advanced Data Logger function
1/1 octave band analyser on board
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
Hand held, light weight and robust case
Easy to use with menu driven user interface
1.4. Accessories included
SV 7052 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
four AA alkaline batteries
SvanPC++ download and viewing software.
SC 77 output cable for I/O connector, Stereo Jack to 2 x BNC

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SVANTEK 977W User Manual
1.5. Accessories available
SA 277 outdoor protection Unit
SA 17A external battery pack using 6 x AA batteries
SA 143 carrying case for SVAN 95x and accessories (lightweight)
SA 79 carrying case for SVAN 9xx and accessories (waterproof)
SA 47 carrying bag for SVAN 95x and accessories (fabric material)
SV 55 RS 232 option for the SVAN 955
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.
1.6. Software options available
SV 977_2 1/3 octave analysis for the SVAN 977W
SV 977_4 FFT analysis option for the SVAN 977W
SV 977_5 RT60 option for the SVAN 977W
SV 977_8 RPM Rotation measurement option (excluding Laser Tachometer) for the SVAN 977W
SV 977_15 Time domain waveform signal recording (to the micro SD card: *.srt or *.wav format) for
the SVAN 977W
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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SVANTEK 977W 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 push-buttons for
control of the instrument has been reduced to nine for ease of use and convenience.
2.1 Control push-buttons on the front panel
The following control push-buttons 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 push-button function which
is available after pressing itin conjunction (orin sequence) with the <Shift> push-
button. For the first two push-buttons the name given in square brackets […]
denotes also the third push-button function which is available after pressing it in
conjunction (or in sequence) with the <Alt> push-button.
<Shift>
The second function of a push-button (written in red colour on a push-button) can be
used when the <Shift> push-button is pressed. This push-button can be used in two
different ways:
as Shift like with a computer keyboard (e.g. while typing the filename); both
<Shift> and the second push-button must be pressed together (two finger
operation);
as 2nd Fun; this push-button can be pressed and released before pressing the
second one or pressed in parallel (while operating in “2nd Fun”mode, see the
following notice) with the second push-button (one finger operation).
The <Shift> push-button pressed in conjunction with <Alt> enables the user to activate
the Markers on the plots during the measurement.
<Alt>
This push-button enables the user to choose the third push-button function in case of
[<Save>] and [<Pause>] push-buttons. In order to select the thirdfunction the user must
press the <Alt> and the second push-button simultaneously.
Note: Simultaneously pressing the <Alt> and <Start/Stop> push-buttons switches the instrument on
or off.
<Start/Stop>
This push-button enables the user to start the measurement process when the
instrument is not measuring or to stop it when the instrument is in course of the
measurement. It is also possible to set the mode of this push-button such that in order
to start or stop the measurements the user has to press it simultaneously with the
<Shift> push-button. This can prevent accidentally starting or stopping a measurement
at the wrong time by just brushing against the Start/Stop button on its own.

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SVANTEK 977W User Manual
Note: Changing the <Start/Stop> push-button mode is performed in the Keyboard Settings window
of the Instrument list (see description of the Instrument list).
<ENTER>
This push-button enables the user to enter the selected position shown on the screen
Menu list or to confirm selected settings. Some additional functions of this push-button
will be described in the following chapters of this manual.
<Menu>
This push-button (<ENTER> pressed together with <Shift>) enables the user to enter
the main list containing seven sub-lists: Function, Measurement, Display, File,
Instrument, Auxiliary Setup and Welmec. Each of the above-mentioned menu lists
consists of sub-lists, elements and data windows. These main sub-listswill be described
in detail in the following chapters of the manual. Double pressing the <Menu> push-
button enters a list containing the last eight opened sub-lists. It often speeds up the
control of the instrument as the user has faster access to the most frequently used sub-
lists for easy navigation.
<Save>
This push-button (<ENTER> pressed together with <Alt>) enables the user to save the
measurement results (see description in chapter 3.5).
<ESC>
This push-button closes the control lists, sub-lists or windows. It acts in an opposite way
to the <ENTER> push-button. When the window is closed after pressing the <ESC>
push-button, any changes made in it are ignored in almost all cases.
<Cal.>
This push-button (<ESC> pressed together with <Shift>) opens the Calibration sub-
list.
<S/P>
This push-button (<ESC> pressed together with <Alt>) enables the user to pause or
break the measurement process temporarily during the measurement or to save the
setup file if the instrument is not running the measurement.
◄, ►
These push-buttons enable the user specifically to:
select the column in a multi column parameter list;
select the parameters value in an active position (e.g. filter Z, A, Bor C, Start Delay
period: 1s, 2s, 3s, … etc.);
control the cursor in Spectrum, Logger and Statistics modesof result presentation;
select the position of the character in the text editing screen;
activate markers 2 and 3
speed up changing the numerical values of the parameters when pressed and held.
(◄, ►)
The ◄or ► push-buttons pressed together with <Shift> enable the user specifically to:
change the parameters value with double step (e.g. Start Delay period: form 1s to
11s, 21s, … etc.);
to shift cursor from the first to the last position and back on the graphical view mode.
[◄, ►]
The ◄or ► push-buttons pressed together with <Alt> enable the user specifically to:
select the parameters value in an active position in the matrix parameter list;
select the parameters 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 push-buttons enable the user specifically to:
select line in the list;
select the active field on the result view screen;
select the correct character from the list in the text edition screen;
activate markers 1 and 4.
(▲,▼)
The ▲ or ▼ push-buttons pressed together with <Shift> enable the user specifically to:
shift the cursor from the first to the last position and back on the menu list;

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SVANTEK 977W User Manual
change the relationship between the Y-axis and X-axis of all plots presented on the
screen.
[▲,▼]
The ▲ or ▼ push-buttons pressed together with <Alt> enable the user specifically to:
change the mode of result presentation;
programme the Real-Time Clock (RTC) and Timer.
[Info]
The <Info> push-button (simultaneous pressing the ◄
and ► push-buttons) opens the window with the help
information in the measurement display modes. Press
<ESC> or <ENTER> to exit the Info screen.
<Markers>
The <Markers> push-button (<Alt> pressed together with <Shift>) enables the user to
mark special events, which occurred during the performed measurements (i.e. the
airplane flight, the dog barking, the train’s drive etc.). To activate the markers, the logger
should be switched on (path: <Menu> / Measurement / Logging / Logger Setup) and one
or more logger results (Peak, Max, Min, Leq for sound measurements or Peak, P–P,
Max, RMS for Vibration measurements) in profiles have to be activated (path: <Menu>
/ Measurement / Logging / Logger Results).
To enter the marker mode, the user must press <Shift> and <Alt> push-buttons
simultaneously during the measurement. Then four available markers appear on
the screen. To switch on marker number 1 the user must press ▲push button
(number 2 - ◄, number 3 - ►and number 4 - ▼). Active marker number will be
highlighted.To switch off themarker theuser should pressthe appropriate arrow-
button second time.
The markers disappear from the screen after pressing <Shift> and <Alt>, but
the status of markers doesn’t change. To continue working with the markers, the
user should press <Shift> and <Alt> again.
The current state of the markers is indicated in the logger file (cf. App. B for
details) and can beused to showthem with the help of the dedicated presentation
software.
An example presentation of the markers on the time history plot is shown below
(to view a plot with markers the user should transfer data to the appropriate
software such as SvanPC++).
<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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SVANTEK 977W User Manual
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. TheSV 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. After connecting the preamplifier or the accelerometer
cable to themeasurement input, the screw should be tightenedto 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 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 under the bottom cover of the
instrument and spaces for the 4 x AA batteries.
The USB socket is the USB Device 1.1interface –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 Serial Port provides data transfer using RS232 data format
but in TTL logic standard by means of the SV 55 interface. It conforms to the EIA
Standard RS 232C and enables the user to programme remotely all instrument
functions and the transmissions 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. On this socket, in case when 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 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.
The user can connect an external DC power 7-16V adapter to the 7-16V socket
located onthe bottom cover of theinstrument.The current consumption depends
on the voltage of the power supplier.
There is a memory micro SD-card slot under the bottom cover of the instrument
and spaces for the 4 x AA batteries.
All sockets are described in detail in the Attachment C for this manual.
Note: Switch the power off before connecting the instrument to any other device (e.g. a Personal
Computer).

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3. INSTRUMENT SETTING
To perform measurements using the instrument the user only should connect the preamplifier with the
microphone already screwed on or the proper vibration transducer and to switch the power on by pressing the
<Alt> and <Start/Stop> push-buttons at the same time. Hold both buttons down for 1 or 2 seconds and release
to switch on.
3.1. Basis of the instrument’s control
The instrument is controlled by means of nine push-buttons on the keyboard. Using these push-buttons the user
can access all available functions and change the value of all available parameters. The functions are placed in
a system of lists and sub-lists.
The instrument's menu consists of different type of windows, which include: mainmenu list, sub-menu list, option
list, parameter list, text editor window, information window and file manager window with file command list.
Main menu
The main list contains the headers of six lists, which also contain sub-lists or
positions (elements). The main list is opened after pressing the <Menu> push-
button. This list contains the following sub-lists: Function, Measurement,
Display, File, Instrument, Auxiliary Setup and Welmec (for Sound Meter
mode only).
Recent Items list
Double pressing the <Menu> push-button opens the list of recently accessed
menu items. This enables the user to access the most frequently used lists
quickly, without the necessity of passing through the whole menu path.
Position selection
The desired position in menu list is selecting
using the ▲or ▼push-buttons.
▼
Entering position
After selection of the desired position in the
menu list, the user should press the
<ENTER> push-button to enter it. After this
operation, a new sub-menu, option list,
parameter list or information window appears
on the display.
<ENT>
List of parameters
The parameter list contains parameters for which the user may select the value
from the available range. Pressing the <ENTER> push-button enables the user
to access the above mentioned sub-list.
The desired position in a list is accessed after pressing the ▲or ▼push-
button.

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SVANTEK 977W User Manual
Changing of the value in a selected position is performed by the ◄or ►
push-buttons (or pressed together with <Shift>).
Option list
The option list consists of different choices, from which only one may be
selected. The selection of the option is performed as follows. The user should
highlight thedesired optionbymeansof the▲or ▼push-buttonsandthenpress
<ENTER>. This option becomes active and the list is closed. When the user re-
enters this list again, the last selected option will be marked.
If the parameter has a numerical value, the user may keep pressing the ◄or ►push-buttons longer than 1
second to speed up the selection. In thiscase the parameter starts to change automatically until the user releases
the pressed buttons.
The user may change the numerical parameter value with a larger step (usually 10) by means of the ◄or ►
push-buttons pressed together with <Shift>.
Matrix of parameters
When the list of parameters consists of more than one column the user may
change:
column by means of ◄or ►
line in the same column by means of ▲or ▼
value in a selected position by means of ◄or ►with <Alt>
all values in the same column by means of ▲or ▼with <Shift>
all values in the same line by means of ◄or ►with <Shift>.
Complex parameters
Some parameterslike Start Hour, Start Day etc. are
complex (consisting of more than one value field).
The selection of values for such parameters is
performed in a special window, which is opened with
the ◄or ►push-buttons. In the special window the
value is selected with the ◄or ► or ▲ or ▼ push-
buttons and then confirmed by pressing <ENTER>.
In all cases the <ENTER> push-button is used for confirmation of the selection in a position and for closing the
opened sub-list. The sub-list is closed ignoring any changes made in the list by pressing the <ESC> push-button
and the user returns to the previous menu.
Information window
Some windows inform the user about the state of the instrument, available
memory, none existingfilesorloggers, standardsfulfilled by the unit, etc. Inorder
to scroll through the list, the user has to use the ▲or ▼push-buttons. In order
to close such a window, the user has to press <ESC>.
Text editor window
In the text editor windowsthe user may edit text lines(file names, directory name
etc.) Such window contains the virtual keyboard to edit the text. The character
which is displayed inversely may be edited.
The user can select the position of the character in the virtual keyboard using
the ◄or ► or ▲ or ▼push-buttons.
►

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To change the uppercase to lowercase letters or symbols the user has to
select ABC button and press <ENTER>.
The user can insert, delete or change the position in the edited text using the
buttons of the keyboard: Ins, Del, ◄and ►.
To confirm the editted name the user has to select Ok button and press
<ENTER>.
Help information
In most windows the last line or several lines at the bottom of the screen contain help information. It informs the
user how to select or modify the parameter’s value, change the character in the text line etc.
Inactive parameters
If some functions or parameters are not available, the positions in the menu or
parameter lists linked with this function or parameter became inactive (their
colour becomes grey). For example, if Logger (path: <Menu> / Measurement /
Logging / Logger Setup) is switched off, the Logger view mode is not active!
3.2. Powering of the instrument
The SVAN 977W can be powered by one of the following sources:
Four AA standard size internal batteries. In case of alkaline type, a newfully charged set can operate more
than 12 h (6.0 V / 1.6 Ah). Instead of the ordinary alkaline cells, four AA 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)
External DC power source –7 V DC÷16 V DC (1.5 W)
SA 17A external battery pack –operation time > 24 h (option)
USB interface –500 mA HUB
For each of possible power source there is a different view presented in the Battery window of the Instrument
list.
When the instrument is powered from its internal batteries, the “Battery” icon is presented on the top line of the
display. When the 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. A fully charged set of 4 batteries ensures more than 12 hours of continuous operation of
the instrument (with display Dim switched on). The battery condition can be checked by means of 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 means of the 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: x.xxV message.
When there is a connection to the 7–16V socket the “plug” icon is presented on
the top of the display and in the Battery window there is the External Power:
Voltage: yy.yyV message.

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When the instrument is powered from the
internal batteries the “battery” icon is
presented on the top of the display and the
Battery window presents the battery status
scale and batteryvoltage: Voltage: x.xxV. The
colour of the battery and the scale reflects the
battery capacity: green (>75%), yellow(>25%),
red (<25%).
►
To have right indication of the battery statusthe user should select the batterytype in the Type position: Alkaline
or Rechargeable.
Note: In case when “Battery” icon is red it is strongly recommended to use an external power
adapter or USB interface as soon as possible to ensure reliable operation. If no suitable external
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 reducing the brightness of the
screen when possible. The settings of Brightness and power saver function may be done in the Screen Setup
window (path: <Menu> / Display / Screen Setup).
3.3. Turning the instrument on
Switching the instrument on
To switch the power on the user should press
the <Alt> and <Start/Stop> push-buttons at
the same time.
The instrument goes through the self-test
routine after switching on, displaying during
this time: manufacturer logo, name of the
instrument, program and bootstrap versions,
their CRC as well as preamplifier and
microphone serial numbers; and then it
enters:
the last used just before the unit switch
off view mode in case of Vibration
measurements or
the Running SPL viewmode in case of
Sound measurements.
Starting measurement
To start the measurements the user should
press the <Start/Stop> push-button. The
measurement will be performed with the
current instrument settings, which are
preserved in the internal memory of the
instrument.
<Start>

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SVANTEK 977W User Manual
Setting the measurement parameters
The instrument as sold has default settings which the user may change, but
always return to them with the use of Factory Settings option in the
Auxiliary Setup menu.
Next chapters of the manual will describe in details what each parameter means
and how to change the instrument settings.
Main default settings
With default settings, the instrument will measure sound pressure level by virtual
meters, so called profiles (Measurement Mode: Sound;
Measurement Function: Level Meter) with 1 second delay from the <Start>
push-button pressure (Start Delay: 1 s), 1 minute integration time
(Integration Period: 00:01:00),infinitive repetition till press <Stop> push-button
(Repetition Cycle: Inf), linear integration (RMS Integration: Lin), free field
compensation (Compensation Filter:Free Field), active logging of the selected
results with 1 second step (Logger: On; Logger Step: 1 s; Logger Results:
Peak,Max,Min and Leq for all profiles) and summary results saving including
Statistics. Other functions are switched off like:
- measurement trigger (Measurement Trigger: Off),
- logger trigger (Logger Trigger: Off),
- event recording (Events: Off)
- wave recording (Wave Rec.: Off),
- timer (Timer Mode: Off).
The logger and summary results will be automatically saved in the file with the
name defined by the instrument and presented in the Logger Setup sub-list
(Logger Name: Lxxxx).
Default profile settings for Sound measurements:
Profile 1 - Aweighting filter (Filter(1)=A), Fast RMS detector
(Detector(1)=Fast);
Profile 2 - Cweighting filter (Filter(2)=C), Fast RMS detector
(Detector(2)=Fast);
Profile 3 - Z weighting filter (Filter(3)=Z), Fast RMS detector
(Detector(3)=Fast).
Default profiles settings for Vibration measurements:
Profile 1 - HP1 weighting filter (Filter(1)=HP1); 1.0s RMS detector
(Detector(1)=1.0s);
Profile 2 - HP3 weighting filter (Filter(2)=HP3), 1.0s RMS detector
(Detector(2)=1.0s);
Profile 3 - HP10 weighting filter (Filter(3)=HP10), 1.0s RMS detector
(Detector(3)=1.0s).

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3.4. Description of icons
Description of the instrument state
Additional information about the instrument’s state is given by
means of the row of icons visible in the top of the display.
The type of measurement function and the measurement mode
(SLM, VLM, S:1/1 etc.) as well as real time clock (RTC) is also
displayed in the same line together with icons.
The meanings of the icons are as follows:
“play” icon is displayed when the
measurement is running.
“memory warning” icon is displayed
when there is no external SD memory card
inserted.
“stop” icon is displayed when the
measurement is stopped.
“SD Card” icon is displayed when the
external micro SD card memory is
inserted.
“pause” icon is displayed when the
measurement is paused.
“RS232” icon is displayed when the
RS232 port is activated.
“computer” icon is displayed when there is
a successful USB connection with the PC.
“curve” icon is presented when the
current measurement results are logged
into the instrument’s logger file.
“note” icon is displayed when the wave
recording is active (wave files with extension
WAV are saved automatically)
“Trigger Level +” icon is displayed when
the “Level+” trigger is waiting for fulfilment
condition. The icon appears alternately
with the “play”, “curve” or “note” icons.
“arrow up” icon is displayed when overload
appears.
“Trigger Level –“ icon is displayed when
the trigger condition is set up to “Level-”
trigger is waiting for fulfilment condition.
The icon appears alternately with the
“play”, “curve” or “note” icons.
“arrow down” icon is displayed when under
range appears.
“Trigger Slope +” icon is displayed when
the “Slope+” trigger is waiting for fulfilment
condition. The icon appears alternately
with the “play”, “curve” or “note” icons.
“Alt” icon is displayed when the <Alt> push-
button is pressed.
“Trigger Slope –“ icon is displayed when
the “Slope-” trigger is waiting for fulfilment
condition. The icon appears alternately
with the “play”, “curve” or “note” icons.
“Shift” icon is displayed when the <Shift>
push-button is pressed.
“trigger” icon is displayed when other
than Level or Slope trigger is waiting for
fulfilment condition.
“lightning” icon is displayed when
polarisation voltage is 200V.
“bell’ icon is displayed when any alarm
appears

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SVANTEK 977W User Manual
“clock” icon is displayed when the timer is
On. It is active when the instrument is waiting
for the measurement start up to occur. When
the measurement start up is close, the icon
changes its colour to green and starts to blink.
“battery” icon is displayed when the
instrument is powered from the internal
batteries. Icon corresponds to the status of
the batteries (three, two, one or none
vertical bars inside the icon). When
voltage of batteries is too low, the icon
becomes red.
“satellite” icon is displayed when GPS is
active. Colours of the icon define the state of
the GPS: green –active, blue –searching,
grey –disconnected.
“Bluetooth” icon is displayed when the
Bluetooth®is switched on. Colours of the
icon define the state of the Bluetooth®:
blue –connected, grey –disconnected.
“plug” icon is displayed during external
power is connected to the 7-16V socket
icon is displayed if the current firmware is
different from the original one (which was
installed when the instrument has been
purchased)
Icons connected with modem functionality:
or
Icon is displayed when the GPRS function is
swithed on and there is no cable connection
with the modem
or
Icon is displayed when the GPRS function
is swithed on and there is no cable
connection with the modem
or
icon is displayed when the wireless
transmission (GPRS modem) is active, but
there is no connection with Host or SvanNET
or
icon is displayed if there is no GPRS
connection
or
icon is displayed if there is connection with
Host
icon is displayed if there is GPRS
connection and shows the level of the
GPRS signal. In additional GPRS
connection yellow and red arrows appear
icon is displayed if there is connection with
SvanNET.
3.5. Data storage
Memory type
All available measurement results and settings can be stored in the external memory (micro SD Card) as files in
the predefined or assigned directories. The setup files are stored in the predefined directory SETUP. The
predefined directories can be changed by the user or renamed.
The SD Card external memory is activated automatically after insertion of the card.
The “SD Card” icon is displayed when the external micro SD card memory is inserted in the memory
slot.
If the SD card is removed from the memory slot the “memory warning” icon appears instead of
“SD Card” icon.
The SD Card memoryis organised as standard memory with directories and sub-directories (FAT32file system).
It is possible to create and delete the directories.
The content of each memory file type can be checked with the help of the File Manager or Setup Manager
function of the File menu.
In the File Manager or Setup Manager
windows data files are described by their file
name with an extension (SVL, SVT or WAV)
as well as additional icon and size (2KB etc.).
Directory
Logger file .SVL