Svantek SVAN 948 User manual

SVAN 948
SOUND AND VIBRATION
DATA LOGGER
USER’S MANUAL
SVANTEK Sp. z o.o.
WARSAW, June 2004

Notice: This user’s manual presents the software version named 2.11 (cf. the
description of UNIT LABEL position of DISPLAY list). The succeeding software versions (marked
with the bigger numbers) can slightly change the view of some screens presented in the text of the
manual.

CONTENTS
_________________________________________________________________
1. INTRODUCTION 1 - 1
Main features of the SVAN 948 1 - 1
2. MANUAL CONTROL OF THE INSTRUMENT 2 - 1
2.1. CONTROL PUSH-BUTTONS ON THE FRONT PANEL 2 - 1
2.2. INPUT AND OUTPUT SOCKETS OF THE INSTRUMENT 2 - 4
3. SETTING OF THE INSTRUMENT 3 - 1
3.1. BASIS OF THE INSTRUMENT’S CONTROL 3 - 1
3.2. POWERING OF THE INSTRUMENT 3 - 19
3.2. INITIAL SETUP OF THE INSTRUMENT 3 - 20
4. MEASUREMENT FUNCTIONS OF THE INSTRUMENT 4 - 1
4.1. CALIBRATION 4 - 3
4.1.1. The calibration by the sensitivity introduction 4 - 4
Calibration BY SENSITIVITY in the case of vibration signal 4 - 4
Calibration BY SENSITIVITY in the case of acoustic signal 4 - 5
4.1.2. The calibration by the measurement 4 - 7
Calibration BY MEASUREMENT in the case of vibration signal 4 - 7
Calibration BY MEASUREMENT in the case of acoustic signal 4 - 8
4.2. LEVEL METER 4 - 10
4.2.1. Sound level meter 4 - 11
One profile mode of measurement results presentation 4 - 13
3 PROFILES mode of measurement results presentation 4 - 14
Presentation of the statistical analysis results - STATISTICS 4 - 14
Presentation of time history - PLOT 4 - 15
4.2.2. Vibration level meter 4 - 17
One profile mode of measurement results presentation 4 - 18
3 PROFILES mode of the measurement results presentation 4 - 19
Presentation of time history - PLOT 4 - 19
4.2.3. Measurement parameters setting 4 - 22
Measurement parameters setting - INPUT list 4 - 22
Selection of measurement parameters - MEASURE SETUP 4 - 23
Setting time delay before the start of measurements - START DELAY 4 - 23
Setting the integration time - INT. TIME 4 - 23
Setting number of repetition of measurement cycles - REP. CYCLE 4 - 25
Setting time between two writings to the buffer’s file - BUF. STEP 4 - 25
Setting parameters in channels and for octave analysis - CHANNELS SETUP 4 - 25
Setting parameters in a channel – CHANNEL x 4 - 26
Selection of the instruments mode - FILTER 4 - 26
Selection of the measurement range - RANGE 4 - 26
Selection of the weighting filter in SLM - FILTER 4 - 27

Selection of the weighting filter in VLM - FILTER 4 - 28
Selection of the RMS detector in SLM - DETECTOR 4 - 29
Selection of the RMS detector in VLM - DETECTOR 4 - 29
Selection of the measurement parameters - BUFFERS SETUP 4 - 30
Selection of the result to be saved in the buffer’s file - BUFFERS 4 - 30
Selection of mode and triggering parameters - TRIGGER SETUP 4 - 32
Switching the triggering on and off - TRIGGER 4 - 32
Selection of the triggering signal in SLM - SOURCE 4 - 33
Setting the level of triggering - LEVEL 4 - 34
Setting the parameter related with the buffer triggering - PRE/POST TRIGGER 4 - 34
4.3. ACTIVATION OF OPTIONAL FUNCTIONS 4 - 38
4.4. 1/1 OCTAVE ANALYSER 4 - 39
4.4.1. 1/1 OCTAVE analyser of acoustic signal 4 - 40
Selection of the measurement range in 1/1 OCTAVE analysis of acoustic signal - RANGE 4 - 43
Selection of 1/1 OCTAVE analysis result of acoustic signal to be saved in the buffer’s file -
BUFFERS SETUP 4 - 44
Selection of 1/1 OCTAVE analysis parameters for acoustic signal - SPECTRUM 4 - 46
Selection of the weighting filter in 1/1 OCTAVE analysis of acoustic signal - FILTER 4 - 46
Selection of 1/1 OCTAVE analysis result to be saved in the buffer’s file - BUFFER 4 - 47
Selection of the result which triggers registration in BUFFER mode in 1/1 OCTAVE analysis
of acoustic signal 4 - 47
4.4.2. 1/1 OCTAVE analyser of vibration signal 4 - 49
Measurement range selection in 1/1 OCTAVE analysis of vibration signal - RANGE 4 - 53
Selection of 1/1 OCTAVE analysis result of vibration signal to be saved in the buffer’s file -
BUFFERS SETUP 4 - 54
Selection of 1/1 OCTAVE analysis parameters for vibration signal - SPECTRUM 4 - 55
Selection of 1/1 OCTAVE analysis result of vibration signal to be saved in the buffer’s file -
BUFFER 4 - 56
Selection of the result which triggers registration in BUFFER mode in 1/1 OCTAVE analysis
of vibration signal 4 - 57
4.5. 1/3 OCTAVE ANALYSER 4 - 58
4.5.1. 1/3 OCTAVE analyser of acoustic signal 4 - 59
Selection of the measurement range selection in 1/3 OCTAVE analysis of acoustic signal -
RANGE 4 - 62
Selection of 1/3 OCTAVE analysis result of acoustic signal to be saved in the buffer’s file -
BUFFERS SETUP 4 - 63
Selection of 1/3 OCTAVE analysis parameters for acoustic signal - SPECTRUM 4 - 65
Selection of the weighting filter in 1/3 OCTAVE analysis of acoustic signal - FILTER position 4 - 66
Selection of 1/3 OCTAVE analysis result to be saved in the buffer’s file - BUFFER position 4 - 66
Selection of the result which triggers registration in BUFFER mode in 1/3 OCTAVE analysis
of acoustic signal 4 - 67
4.5.2. 1/3 OCTAVE analyser of vibration signal 4 - 68
Measurement range selection in 1/3 OCTAVE analysis of vibration signal - RANGE 4 - 75
Selection of 1/3 OCTAVE analysis result of vibration signal to be saved in the buffer’s file -
BUFFERS SETUP 4 - 76

Selection of 1/3 OCTAVE analysis parameters for vibration signal - SPECTRUM 4 - 77
Selection of 1/3 OCTAVE analysis result of vibration signal to be saved in the buffer’s file -
BUFFER 4 - 78
Selection of the result which triggers registration in BUFFER mode in 1/3 OCTAVE analysis
of vibration signal 4 - 78
4.6. DOSE ANALYSER 4 - 80
One profile mode of measurement results presentation 4 - 80
3 PROFILES mode of the measurement results presentation 4 - 83
4.6.1. HAV and WBV measurement parameters setting 4 - 84
Measurement parameters setting - INPUT 4 - 84
Setting parameters in channels and for octave analysis - CHANNELS SETUP 4 - 85
Setting parameters in a channel - CHANNEL x 4 - 85
Selection of the instrument - MODE 4 - 85
Selection of the measurement range - RANGE 4 - 86
Selection of the weighting filter in VLM - FILTER 4 - 87
Selection of the RMS detector in VLM - DETECTOR 4 - 88
Selection of measurement parameters - BUFFERS SETUP 4 - 88
Selection of the result to be saved in the buffer’s file - BUFFERS 4 - 88
5. AUXILIARY FUNCTIONS 5 - 1
5.1. DATA AVAILABLE ON THE SCREEN - DISPLAY LIST 5 - 1
Selection of the modes of measurement results presentation - DISPLAY MODES 5 - 1
Selection of the parameters in graphical results presentation - DISPLAY SETUP 5 - 3
Setting of the scale in graphical results presentation - DISPLAY SCALE 5 - 4
Scaling of the vertical axis of the graphical presentation - DYNAMIC 5 - 4
Scaling of the horizontal axis of the graphical presentation - X-ZOOM 5 - 4
Selection of the weighted filters - TOTAL VALUES 5 - 5
Selection of the weighted filters for the 1st profile - TOTAL 1 5 - 5
Selection of the weighted filters for the 2nd profile - TOTAL 2 5 - 6
Selection of the weighted filters for the 3rd profile - TOTAL 3 5 - 6
Selection of spectrum type -SPECTRUM TYPE 5 - 7
Selection of the buffer’s file to the display presentation - BUFFER VIEW 5 - 8
Checking the state of the internal battery - BATTERY 5 - 12
Setting the contrast of the display - CONTRAST 5 - 13
Setting the backlight parameters - BACKLIGHT 5 - 14
Automatic switch off of the backlight - TIMEOUT 5 - 14
Setting the brightness of the backlight - BRIGHTNESS 5 - 14
Checking specification of the instrument -UNIT LABEL 5 - 15
5.2. SETUP MENU 5 - 16
Programming of the instrument’s internal timer -TIMER 5 - 17
Programming of the instrument’s internal Real Time Clock -RTC 5 - 18
Setting the conditions for the diffuse field measurements - FIELD CORRECTION 5 - 18

Introduction the filter coefficients for 1/3 (1/1) OCTAVE analysis -USER FILTERS 5 - 19
Setting the coefficients of the user filters set - EDIT (position) 5 - 21
Setting the coefficients of the user filters - CLEAR 5 - 21
Selection of statistics levels t be saved in a file - STAT. LEVELS 5 - 22
Selection of the external mode - EXT. I/O SETUP 5 - 22
Selection of few push-buttons mode -SHIFT MODE 5 - 24
Selection of the working mode of <SHIFT> push-button -SHIFT 5 - 24
Selection of the working mode of <START / STOP> push-button -ST/SP 5 - 24
Return to the factory made settings -CLEAR SETUP 5 - 25
Selection of detector’s type in the LEQ (RMS) calculations -RMS INTEGRATION 5 - 26
Setting the reference signal in vibration measurements - REFERENCE LEVEL 5 - 26
Setting the reference level of the acceleration signal - ACC 5 - 27
Setting the reference level of the velocity signal - VEL 5 - 27
Setting the reference level of the displacement signal - DIL 5 - 27
Selection of the vibration units -VIBRATION UNITS 5 - 28
Selection of the warnings -WARNINGS 5 - 29
Saving the measurement results in a file -RES.NOT SAVE 5 - 29
Selection of the vector coefficient - VECTOR DEF. 5 - 30
Selection of the vibration dose - HAV/WBV DOSE 5 - 31
Settings of the parameters of vibration dose - MEASURE DOSE 5 - 32
Settings of the parameters of vibration dose - EXPOSURE TIME 5 - 32
Settings of the parameters of vibration dose - AXIS SETUP 5 - 33
Selection of the standard of vibration dose - STANDARDS 5 - 34
5.3. SAVING THE MEASUREMENT RESULTS 5 - 36
Saving files 5 - 36
Selection of the file’s operation -FILE 5 - 37
Saving files in the instrument’s memory -SAVE and SAVE NEXT 5 - 38
Controlling the data storing in the instrument’s memory -SAVE OPTIONS 5 - 41
Saving of the filters to the RAM memory - RAM FILE 5 - 41
Replacement of the existing files by the new ones -REPLACE 5 - 41
Controlling of the measurement statistics savings -SAVE STAT. 5 - 42
Controlling of the measurement results savings -AUTO SAVE 5 - 42
Loading the files with the measurement results -LOAD 5 - 43
Removing a file with the measurement results from memory -DELETE 5 - 45
Removing all files with measurement results from memory -DELETE ALL 5 - 46
Memory merging -DEFRAGMENTATION 5 - 47
Removing all files with results from buffer’s memory -CLEAR BUFFER 5 - 48
Checking the contents of the memory - CATALOGUE 5 - 49
Checking the free space in the memory - FREE SPACE 5 - 50
Saving setup in the instrument’s memory -SAVE SETUP and SAVE SETUP NEXT 5 - 51
Loading the files with the configuration - LOAD SETUP 5 - 53
Operations in buffer 5 - 56

5.4. CALCULATION OF THE DOSE PARAMETERS - AUX. FUNCTIONS 5 - 58
Selection of the calculation results -HAV CALCULATOR 5 - 58
Selection of the file with results of measurement - RESULT SEL. 5 - 59
Selection of the partial results - PARTIAL EAV/ELV 5 - 61
Selection of the partial exposure - PARTIAL EXP 5 - 61
Selection of the daily exposure - DAILY EXPOSURE 5 - 62
Selection of the calculation results - WBV CALCULATOR 5 - 62
Selection of the file with results of measurement - RESULT SEL. 5 - 63
Selection of the partial results - PARTIAL EAV/ELV 5 - 64
Selection of the partial exposure - PARTIAL RESULTS 5 - 65
Selection of the daily exposure - DAILY RESULTS 5 - 66
APPENDIX A. REMOTE CONTROL A - 1
INPUT / OUTPUT TRANSMISSION TYPES A - 1
FUNCTION #1 – INPUT / OUTPUT OF THE CONTROL SETTING CODES A - 1
FUNCTION #2 – READ-OUT OF THE MEASUREMENT RESULTS IN THE SOUND LEVEL
METER OR VIBRATION LEVEL METER MODE A - 4
FUNCTION #3 – READ OUT OF THE MEASUREMENT RESULTS IN 1/1 OCTAVE,
1/3 OCTAVE A - 6
FUNCTION #4 – READ OUT OF THE DATA FILE FROM THE INTERNAL FLASH DISC
AND/OR THE SPECIAL FILE LOCATED IN THE RAM MEMORY A - 6
FUNCTION #5 – READ OUT OF THE STATISTICAL ANALYSIS RESULTS A - 8
FUNCTION #6 – REMOTE SETTING OF THE USER FILTERS A - 9
FUNCTION #7 – SPECIAL CONTROL FUNCTIONS A - 10
CONTROL SETTING CODES A - 11
APPENDIX B. DATA FILE STRUCTURES B - 1
B.1. STRUCTURE OF THE SVAN 948 FILE B - 1
B.2. STRUCTURE OF THE FILE WITH THE RESULTS FROM THE SLM MODE B - 10
B.3. STRUCTURE OF THE FILE WITH THE RESULTS FROM THE VLM MODE B - 10
B.4. STRUCTURE OF THE FILE WITH 1/1 OCTAVE ANALYSIS RESULTS B - 10
B.5. STRUCTURE OF THE FILE WITH 1/3 OCTAVE ANALYSIS RESULTS B - 10
B.6. STRUCTURE OF THE FILE WITH FFT ANALYSIS RESULTS B - 11
B.7. STRUCTURE OF THE FILE CONTAINING RESULTS FROM BUFFER’S FILE B - 11
B.7.1. The contents of the files in the buffer B - 11
B.7.1.1. Record with the results B - 11
B.7.1.2. Record with the state of the markers B - 12
B.7.1.3. Records with the breaks in the results registration B - 12
APPENDIX C. DATA SPECIFICATION C - 1
C.1. SPECIFICATION OF THE SVAN 948 AS SOUND LEVEL METER C - 1

C.2. SPECIFICATION OF THE SVAN 948 AS 1/1 OCTAVE, 1/3 OCTAVE AND FFT SOUND
ANALYSER C - 4
C.3. SPECIFICATION OF SVAN 948 AS VIBRATION LEVEL METER / ANALYSER C - 7
C.3. MISCELLANEOUS SPECIFICATION OF SVAN 948 C - 11
APPENDIX D. DEFINITIONS AND FILTER CHARACTERISTICS D - 1
D.1. DEFINITIONS AND FORMULAE D - 1
D.1.1. Definitions of the results available in the SLM mode of the SVAN 948 D - 1
D.1.2. Definitions of the results available in the VLM mode of the SVAN 948 D - 4
D.2. CHARACTERISTICS OF DIGITAL FILTERS IMPLEMENTED IN SVAN 948 D - 5
The digital weighting filters implemented in the SLM mode D - 5
The digital weighting filters implemented in the SLM mode D - 7
The digital filters implemented in the vibration level meter (VLM) mode for the velocity
measurements D - 8
The digital filters implemented in the vibration level meter (VLM) mode for the displacement
measurements D - 10
The digital filters used in HUMAN VIBRATION measurements D - 12
The digital HP filter implemented in 1/1 OCTAVE, 1/3 OCTAVE and FFT analysis in the
SVAN 948 instrument D - 16
The digital 1/1 OCTAVE and 1/3 OCTAVE filters implemented in the SVAN 948 instrument D - 17

INDEX OF LISTS, SUB-LISTS AND POSITIONS
1/1 OCTAVE Selection of 1/1 OCTAVE analysis, position of FUNCTION sub-list 4 - 39
1/3 OCTAVE Selection of 1/3 OCTAVE analysis, position of FUNCTION sub-list 4 - 58
3 PROFILES Measurement results presentation mode (numerical), position of DISPLAY sub-list 5 - 1
ACC Setting the reference level for acceleration measurements, position of
REFERENCE LEVEL sub-list 5 - 26
ANALOG Type of input / output devices, sub-list of EXT. I/O SETUP 5 - 23
AUTO SAVE Controlling of measurement results savings, position of SAVE OPTIONS sub-list 5 - 42
AXIS SETUP Assign axis of accelometer to the number of channels, sub-list of HAV/WBV DOSE
list 5 - 33
BACKLIGHT Setting the backlight parameters, sub-list of DISPLAY list 5 - 14
BATTERY Checking the state of the internal battery, position of DISPLAY list 5 - 12
BRIGHTNESS Setting the brightness of the backlight, position of BRIGHTNESS sub-list 5 - 14
BUF. STEP Setting time between two writings to the buffer’s file, position of
MEASURE SETUP sub-list 4 - 25
BUFFER VIEW Selection of the buffer’s file to the screen presentation, sub-list of DISPLAY list 5 - 8
BUFFER Selection of 1/1 OCTAVE analysis result to be saved in the buffer’s file, position of
SPECTRUM sub-list 4 - 47
BUFFER Selection of 1/3 OCTAVE analysis result to be saved in the buffer’s file, position of
SPECTRUM sub-list 4 - 78
BUFFERS Selection of the result to be saved in the buffer’s file, position of BUFFERS
SETUP sub-list 4 - 30
CAL. LEVEL Setting the level of the calibrator’s signal, position of CALIBRATION sub-list 4 - 4
CALIBRATION Calibration of sound measurement channel, sub-list of FUNCTION list 4 - 4
CATALOGUE Controlling the contents of the memory, position of FILE list 5 - 49
CHANNEL x Setting parameters in a profile of SLM, sub-list of CHANNELS SETUP sub-list 4 - 25
CHANNELS SETUP Setting parameters in profiles and for octave analysis, sub-list of INPUT list 4 - 25
CLEAR SETUP Return to the factory made settings, position of SETUP list 5 - 25
CLEAR BUFFER Removing all files with the results from buffer’s memory, position of FILE list 5 - 48
CLEAR Clearing the coefficients of the user filters, position of USER FILTER sub-list 5 - 21
CONTRAST Setting the contrast of the screen, position of DISPLAY list 5 - 13
DAILY EXPOSURE Displaying the daily exposure in DOSE mode, sub-list of HAV CALCULATOR sub-list5 - 66
DAILY RESULTS Displaying the daily exposure and daily dose in DOSE mode, sub-list of WBV
CALCULATOR sub-list 5 - 66
DEFRAGMENTATION Memory merging, position of FILE list 5 - 47
DELETE ALL Removing all files from instrument’s memory, position of FILE list 5 - 46
DELETE Removing a file with the results from instrument’s memory, position of FILE list 5 - 45
DETECTOR Selection of the RMS detector, position of CHANNEL x sub-list 4 - 29
DIGITAL IN Type of input / output devices, sub-list of EXT. I/O SETUP 5 - 23
DIGITAL OUT Type of input / output devices, sub-list of EXT. I/O SETUP 5 - 23
DIL Setting the reference level for displacement measurements, position of
REFERENCE LEVEL sub-list 5 - 27
DISPLAY MODES Selection of the ways of measurement results presentation, sub-list of DISPLAY list 5 - 1
DISPLAY SCALE Selection of the scale in graphical results presentations, sub-list of DISPLAY list 5 - 4
DISPLAY Data available on the screen, main list (function of the push-button) 5 - 1
DOSE Selection of DOSE measurements, position of FUNCTION sub-list 5 - 32
DYNAMIC Scaling of the vertical axis of the graphical presentation, position of DISPLAY SCALE
sub-list 5 - 4

ENTER CODE Access to optional functions 4 - 38
EXPOSURE TIME Setting the exposure time, position of HAV/WBV DOSE list 5 - 32
EXT. I/O SETUP Selecting the external devices, sub=list of SETUP list 5 - 22
FIELD CORRECTION Setting the conditions for the diffuse field measurements, position of SETUP list 5 - 18
FILE NAME Edition of the file name in which the measurement results has to be saved 5 - 37
FILE Available operations on files, main list (function of the push-button) 5 - 37
FILTER Selection of the weighting filter, position of CHANNEL x sub-list 4 - 27
FILTER Selection of the weighting filter in 1/1 OCTAVE analysis, position of
SPECTRUM sub-list 4 - 46
FILTER Selection of the weighting filter in 1/3 OCTAVE analysis, position of
SPECTRUM sub-list 4 - 66
FREE SPACE Checking the free space in the memory, position of FILE list 5 - 50
FUNCTION Selection of the unit’s measurement function, main list (function of the push-button) 2 - 3
HAV CALCULATOR Selection of DOSE measurements, position of FUNCTION sub-list 5 - 58
HAV/WBV DOSE Selection of DOSE measurements, position of FUNCTION sub-list 5 - 32
INPUT Measurement parameters setting, main list (function of the push-button) 4 - 22
INT. TIME Setting the integration time, position of MEASURE SETUP sub-list 4 - 23
LEVEL METER Selection of LM function, position of FUNCTION sub-list 4 - 10
LEVEL Selection of the triggering mode, position of TRIGGER SETUP sub-list 4 - 34
LOAD SETUP Loading configuration from the memory with the instruments configuration, position of
FILE list 5 - 53
LOAD Loading file from the memory with the measurements results, position of FILE list 5 - 43
MEASUR. FUNCTION Selection of the available measurement function, sub-list of FUNCTION list 4 - 10
MEASURE SETUP Selection of measurement parameters, sub-list of INPUT list 4 - 23
MEASURE DOSE Activation of the MEASURE DOSE, sub-list of HAV/WBV DOSE list 5 - 31
PARTIAL EXP. Displaying the partial exposure in DOSE mode, sub-list of HAV CALCULATOR sub-
list 5 - 61
PARTIAL RESULTS Displaying the partial exposure results, sub-list of HAV CALCULATOR sub-list 5 - 65
PARTIAL EAV/ELV Displaying the partial results in DOSE mode, sub-list of HAV CALCULATOR 5 - 64
PLOT Measurement results presentation mode (graphical), position of DISPLAY MODES
sub-list 5 - 1
RAM FILE Saving the results of the measurements in the special file at RAM memory, position
of the SAVE OPTIONS list 3 - 10
RANGE Selection of the measurement range in SLM and VLM, position of INPUT list 4 - 26
RANGE Selection of the measurement range in 1/1 OCTAVE analysis, position of
INPUT list 4 - 53
RANGE Selection of the measurement range in 1/3 OCTAVE analysis, position of
INPUT list 4 - 75
REFERENCE LEVEL Setting the reference level for vibration measurements, sub-list of SETUP list 5 - 26
REP. CYCLE Setting number of repetition of measurement cycles, position of
MEASURE SETUP sub-list 4 - 25
REPLACE Replacement of the existing files by the new ones, position of
SAVE OPTIONS sub-list 5 - 41
RESULT SEL. Selection the files with H-A data, sub-list of HAV CALCULATOR sub-list 5 - 59
RESULT SEL. Selection the files with WBV data, sub-list of WBV CALCULATOR sub-list 5 - 63
RMS INTEGRATION Selection of detector’s type in the LEQ calculations, position of SETUP list 5 - 26
RTC Programming of the instrument’s internal Real Time Clock, position of RTC sub-list 5 - 14
SAVE NEXT Saving files in the memory with the name’s modification, position of FILE list 5 - 38
SAVE NEXT Saving configuration in the memory with the name’s modification,
position of FILE list 5 - 51

SAVE OPTIONS Controlling of the data storing in the instrument’s memory, sub-list of FILE list 5 - 41
SAVE STAT. Controlling of the statistics savings, position of SAVE OPTIONS sub-list 5 - 42
SAVE Saving files in the instrument’s memory, position of FILE list 5 - 38
SAVE Saving the configuration of the instrument in the instrument’s memory, position of
FILE SETUP list 5 - 38
SCALE Setting the scale for vibration measurements, position of DISPLAY SCALE sub-list 5 - 4
SETUP Settings of the instrument’s parameters, main list (function of the push-button) 5 - 16
SHIFT MODE Selection of few push-buttons mode, sub-list of SETUP list 5 - 24
SHIFT Selection of the working mode of <SHIFT> push-button, position of
SHIFT MODE sub-list 5 - 24
SOURCE Selection of the triggering signal, position of TRIGGER SETUP sub-list 4 - 33
SPECTRUM Measurement results presentation mode (graphical), position of DISPLAY sub-list 5 - 1
SPECTRUM Selection of 1/1 OCTAVE analysis parameters, sub-list of
PROFILES SETUP sub-list 4 - 65
SPECTRUM Selection of 1/3 OCTAVE analysis parameters, sub-list of
PROFILES SETUP sub-list 4 - 77
ST/SP Selection of the working mode of <START / STOP> push-button, position of
SHIFT MODE sub-list 5 - 24
STANDARD Selection of the STANDARD of the measurement of vibration dose, sub-list of
HAV/WBV DOSE list 5 - 34
START DELAY Setting start delay before the start of measurement, position of
STATISTICS Measurement results presentation mode (graphical), position of DISPLAY sub-list 5 - 1
TIMER Programming of the instrument’s internal timer, position of SETUP list 5 - 17
TOTAL VALUE Selection the weighted filter, sub-list of DISPLAY SETUP / CHANNEL x list 5 –5
TRIGGER SETUP Selection of mode and parameters of triggering, sub-list of INPUT list 4 - 32
TRIGGER Switching triggering on and off, position of TRIGGER SETUP sub-list 4 - 32
UNIT LABEL Checking specification of the instrument, position of DISPLAY list 5 - 15
USER FILTERS Introduction of 1/3 octave filter coefficients, sub-list of SETUP list 5 - 19
VECTOR DEFINITION Selecting of the vector coefficient, sub-list of SETUP list 5 - 30
VEL Setting the reference level for velocity measurements, position of
REFERENCE LEVEL sub-list 5 - 27
VIBRATION UNITS Selection of the vibration units, position of SETUP list 5 - 28
WBV CALCULATOR Selection of DOSE measurements, position of FUNCTION sub-list 5 - 62
X-ZOOM Scaling of the horizontal axis of the graphical presentation, position of
DISPLAY SCALE sub-list 5 - 4

SVAN 948 USER MANUAL
1 - 1
1. INTRODUCTION
The SVAN 948 is all digital, four channels, Type 1 sound and vibration meter and analyser. It is an
ideal choice for the “Human Vibration” (according to the ISO 2631-1&2 standards) and noise
measurements in the occupational health and safety monitoring tasks. All required weighting filters,
transducers (including triaxial seat accelerometer) are available with this unit.
Four vibration and/or sound channels can work in parallel with independently set-up transducers,
filters and RMS detectors time constant (e.g. simultaneous measurement of the Whole Body and noise
dose).
Large 32 MB internal memory of the SVAN 948 can store time history for all channels over the
whole working day. Measurement results are easily downloaded to any PC using the USB 1.1 interface
and SvanPC software.
The SVAN 948, using computational power of its built-in digital signal processor, can optionally
perform 1/1 or 1/3 octave and real time FFT analysis.
The SVAN 948 can be used in hard environmental conditions, also in the field of the machinery
condition monitoring.
Robust, lightweight construction fulfils the exceptional features of this instrument.
The main features of SVAN 948 instrument are as follows:
SVAN 948 as Sound Level Meter & Analyser
•noise measurements (SPL, LEQ, SEL, Lden, Ltm3, Ltm5 and statistics) with Type 1 accuracy in the
frequency range 10 Hz ÷ 20 kHz
•parallel IMPULSE, FAST and SLOW detectors for the measurements with A, Cor LIN filters
•1/1 octave and 1/3 octave real time analysis (optional) - 15 filters with centre frequencies 1 Hz ÷
16 kHz, Type 1 - IEC 1260 and 45 filters with centre frequencies 0.8 Hz ÷ 20 kHz, Type 1 - IEC 1260
•FFT calculation (1920 lines in real time up to 22.4 kHz with Hanning window and linear averaging)
spectra parallel to the SLM operation (optional)
SVAN 948 as Vibration Meter & Analyser
•vibration measurements according to ISO 2631-1 with Type 1 accuracy (ISO 8041) in the frequency
range 1 Hz ÷ 20 kHz
•parallel PEAK, RMS (incl. MTVV) and RMQ (incl. VDV) measurements
•W–Bxy, W–Bz, W-Bc, KB, H–A, Wk, Wc, Wd, Wj (ISO 8041 and ISO 2631-1) weighting filters
•1/1 octave and 1/3 octave real time analysis (optional) - 15 filters with centre frequencies 1 Hz ÷
16 kHz, Type 1 - IEC 1260 and 45 filters with centre frequencies 0.8 Hz ÷ 20 kHz, Type 1 - IEC 1260
•FFT calculation (1920 lines in real time up to 22.4 kHz with Hanning –kl window and linear averaging)
spectra parallel to the VLM operation (optional)
General features of SVAN 948
•internal buffer for logging more then two weeks of 1 sec RMS / MAX / MIN / PEAK results - in the case
of SLM and RMS / MAX / P–P / PEAK results - in the case of VLM (32 MB of non-volatile memory)
•USB 1.1 interface
•built-in replaceable battery (operational time > 8 h)
•handheld, robust case
•light weight (only ca 500 grams)

SVAN 948 USER MANUAL .
1 - 2
Accessories included
•SV 22 - prepolarised condenser microphone ½”, sensitivity 50 mV/Pa or SVMI17 (Type 2) ¼” electret
microphone,
•SV 12L or SVMI17 - microphone preamplifier,
•SC 16 - USB 1.1 cable,
•SV 39A seat accelerometer for Whole Body measurements, Dytran 3023A1 triaxial for Hand Arm
measurements or other IEPE accelerometers optional,
•SVAN_PC ver. 2xx for Windows 95/98/NT/2000/XP.
Accessories available
•SA 17 - external battery pack,
•SA 22 - windscreen,
•SV 3185D IEPE type transducer from DYTRAN with the nominal sensitivity 10 mV / ms-2 (100 mV / g),
•Other IEPE transducers from DYTRAN,
•SvanPC ver. 3.xx for Windows 98/2000/XP,
•SvanRT ver. 1.xx real time sound and vibration analysis software for Windows 98/2000/XP.
The view of the SVAN 948 instrument with the seat accelerometer, the preamplifier and the microphone

SVAN 948 USER MANUAL
2 - 1
2. MANUAL CONTROL OF THE INSTRUMENT
The control of the instrument is developed in the fully "conversational" way. The user can
"programme" the operation of the instrument selecting the proper option from the MENU. Thanks to it the
number of the control push-buttons of the instrument is reduced to 9.
2.1. CONTROL PUSH-BUTTONS ON THE FRONT PANEL
On the front panel of the instrument there are located the following control push-buttons:
1. <ENTER>,(<MENU>),
2. <ESC>, (<›
››
›>),
3. <SHIFT>,
4. <i>
5. <g>,
6. <h>,
7. <j>,
8. <PAUSE>, (<PROCEED>),
9. <START / STOP>,
The name given in brackets (...) denotes the second push-button function which is available after
pressing in conjunction (or in sequence) the <SHIFT> push-button.
The view of the control push-buttons of the SVAN 948 instrument
<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 in the keyboard; both push-buttons must be pressed in parallel;
•As 2nd Fun; this push-button must be pressed and released before pressing the second one.

SVAN 948 USER MANUAL .
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Notice: The operation of this push button can be set as the “Shift” mode or the “2nd Fun.”
mode in the SHIFT MODE window of the SETUP list (see Chapter 5 for the SETUP list description).
<START / STOP>
This push-button enables one to start the measurement process, when the instrument is not
measuring or to stop it, when the instrument is measuring. It is also possible to set such mode of this
push-button, in which in order to start or stop the measurements the user has to press it simultaneously
with the <SHIFT> one.
Notice: The changing of the <START / STOP> push-button mode is performed in the
SHIFT MODE window of the SETUP list (see Chapter 5 for the SETUP list description).
<PAUSE>
This push-button enables one to break temporary the measurement process. The last one second
measurement result is deleted after the subsequent pressing of the <PAUSE> push-button. Up to fifteen
last seconds of the measurement can be cancelled in this way.
(<PROCEED>)
This push-button (pressed together with the <SHIFT> one) enables the user to continue the
measurement process stopped temporary by pressing the <PAUSE> push-button.
Notice: The simultaneous pressing of the <PAUSE> and <START / STOP> push-buttons
switches the instrument on and off.
<ENTER>
This push-button enables one to enter the selected operation mode or to confirm control options.
Some additional functions of this push-button will be described in the following chapters.
(<MENU>)
This push-button (pressed together with the <SHIFT> one) enables the user to enter the main list
containing six sub-lists: FUNCTION, INPUT, DISPLAY, FILE, AUX. FUNCTIONS and SETUP. Each
of the mentioned above sub-lists consists of the sub-lists, elements and data windows. These main sub-
lists will be detailed described in the following chapters of the manual. Double pressed <MENU> push-
button enters the list containing four last opened sub-lists. It often speeds up the control of the instrument.
<ESC>
This push-button closes the control lists, sub-lists or windows. It acts in opposite to the <ENTER>
push-button. When the window is closed pressing the <ESC> push-button, any changes made in it are (in
almost all cases) ignored.
(<›
››
›>)
This push-button (pressed together with the <SHIFT> one) enables the user to switch on or off the
backlight of the screen and the keyboard.

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<g>, <h>
These push-buttons enable one, in particular, to:
•select the options in an active position in the "horizontal direction" (e.g. filter: LIN, A or C, Integration
time: 1s, 2s, 3s, … etc.),
•select the measurement result to be displayed (e.g. PEAK, MAX, MIN, etc.) in One Profile and
3 PROFILES modes of result’s presentation),
•control the cursor in SPECTRUM, PLOT and STATISTICS modes of result’s presentation,
•select the position of the character in the text edition (i.e. in the FILE NAME menu).
(<g>, <h>)
The <g>, <h>push-buttons pressed in conjunction (or in sequence) with the <SHIFT> enable one,
in particular, to:
•speed up the changing of the numerical values of the parameters (i.e. the step is increased from 1 to
10 in the setting of START DELAY).
•insert or delete a character in the text edition modes,
•change the statistics class (the number displayed after the letter L) in One Profile and 3 PROFILES
modes of result’s presentation,
Some other possible reactions of the instrument on the pressing of these push-buttons will be
described in details in the following chapters.
<i>, <j>
The <i>, <j> push-buttons enable one, in particular, to:
•change the mode of result’s presentation,
•select the proper character from the list in the text edition mode,
•switch the active sub-list in a list.
•programme the Real Time Clock (RTC) and TIMER.
Some other possible reactions of the instrument on the pressing of these push-buttons will be
described in details in the following chapters.
(<i>, <j>)
The <i>, <j> push-buttons pressed in conjunction (or in sequence) with the <SHIFT> enable one,
in particular:
•change the relation between the Y-axis and X-axis of all plots presented on the screen,
•switch the channels and profiles in One Profile and STATISTICS modes of result’s presentation,
•switch the active channel in 3 PROFILES mode of result’s presentation
Some other possible reactions of the instrument on the pressing of these push-buttons will be
described in details in the following chapters.

SVAN 948 USER MANUAL .
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2.2. INPUT AND OUTPUT SOCKETS OF THE INSTRUMENT
The measurement inputs, called Channels, are placed on the top cover of the instrument. There
are 4-pins Lemo compatible socket type ENB.0B.304 – Channels 1-3 and TNC – Channel 4, all with
IEPE power supply for the accelerometers or microphone preamplifiers. The microphone preamplifier
SV 12 has the proper plug-in with the screw for direct connection with the instrument but it is
recommended to use the preamplifier with any extension cable or gooseneck. The vibration transducer
attached to the unit has to have the same connector.
Notice: Pay attention that the TNC connector should be always twisted to the light resistance
but the Lemo connector is push-pull only.
The full description of the signals connected to the sockets is given in the Appendix C.
The view of the top cover of the SVAN 948 instrument in 1:1 scale
In the bottom cover three sockets exist: USB (in the figure below in the middle), AC / Int. (in the
figure below in the left side) and Ext. Power (in the figure below in the right side).
The view of the bottom cover of the SVAN 948 instrument in 1:1 scale
The USB 1.1 interface is the serial interface working with 12 MHz clock. Thanks to its speed this
interface is widely used in all PC. In the instrument the standard 4-pins socket is used described in details
in Appendix C.
The additional input / output socket, called AC / Int., is 1-pin LEMO compatible socket type
ERN.00.250 (the left one in the Fig. above). The function of this socket can be selected from menu (path:
MENU / SETUP / EXT. I/O SETUP / MODE). The socket can be used as:

SVAN 948 USER MANUAL
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•analogue output with the signal from the input of the analogue / digital converter (before the
correction); this signal can be registered using magnetic recorder or observed on the oscilloscope (the
ANALOG setting)
•digital input for external interrupt (the DIGITAL IN setting)
•digital output for external trigger (the DIGITAL OUT setting)
The Ext. Power socket located on the bottom cover of the instrument is Marushin MJ-14
compatible socket, dedicated for the standard ĭ5.5 / 2.1 mm plug (the right one in the Fig. above). The
user can connect the external mains adapter (110 V / 230 V) which furnishes the proper DC level. The
instrument can be charged from the external DC source (from 6 V to 24 V). The current consumption
depends on the voltage of the power supplier.
Notice: Switch the power off before connecting the instrument to any other device (e.g. a
printer or a Personal Computer).
The view of the front panel of the SVAN 948 instrument in 1:1 scale

SVAN 948 USER MANUAL .
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The view of the rear panel of the SVAN 948 instrument in 1:1 scale

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3. SETTING OF THE INSTRUMENT
In order to perform the measurements using the instrument the user has only to plug in the
preamplifier with the microphone and switch the power on.
Notice: The user has to press the <PAUSE> and <START / STOP> push-buttons in
parallel in order to switch the power On/Off.
3.1. BASIS OF THE INSTRUMENT’S CONTROL
The instrument is controlled by means of nine push-buttons of the keyboard. Using these push-
buttons one can access all available functions. The functions are placed in the system of lists and sub-
lists. 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 lists:
FUNCTION, INPUT, DISPLAY, FILE, AUX. FUNCTIONS and SETUP. The elements of each list are
described in details in Chapter 4 and 5. Only one list can be accessed in a time, this one which name is
highlighted (displayed inversely). The change of the highlighted line is done after pressing the <

>, <

>
(or <

>, <

>) push-buttons.
The view of the displays with the highlighted elements of the main list
After double pressing of the <MENU> push-button the list, containing four sub-lists lately accessed
by the user, appears on the display. The example of this list is presented below. Such solution enables
one to access very fast four, the most frequently used, lists without the necessity of passing the whole
path.
The view of the display with the sub-lists which were lately accessed by the user (after double pressing of the
<MENU> push-button)
After the selection of the desired list (the <

>or <

>push-buttons), the user has to press the
<ENTER> push-button in order to enter it. After this new sub-lists, positions (elements) or various data
specification appear on the display.