Svantek SVAN 958A - C.4. FREQUENCY CHARACTERISTICS OF IMPLEMENTED BROADBAND DIGITAL FILTERS

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SVAN 958A User Manual

C.4. FREQUENCY CHARACTERISTICS OF IMPLEMENTED BROADBAND DIGITAL FILTERS

C.4.1. Digital weighting filters dedicated for sound input

“A” filter Class 1 according to IEC 651 and IEC 61672-1:2013

“A” filter characteristics

“C” filter Class 1 according to IEC 651 and IEC 61672-1:2013

“C” filter characteristics

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Table of Contents3
Introduction9
SVAN 958A as Sound Level Meter & Analyser10
SVAN 958A as Vibration Meter & Analyser10
General Features of SVAN 958A11
Accessories Included11
Accessories Available11
Available Firmware12
Firmware Options12
General Information13
Input and Output Sockets of the Instrument13
Powering of the Instrument15
Control Keys on the Front Panel16
Working with the Instrument19
Measurement Mode19
Configuration Mode20
Default Settings23
Description of Icons23
Memory Organisation25
FUNCTIONS of the INSTRUMENT - Function27
Measurement Functions of the Instrument - Measurement Function27
Activation of Optional Functions28
Instruments Calibration - Calibration28
Calibration of the Instrument Channels - Channel X28
Calibration by Setting Transducer's Sensitivity - by Sensitivity29
Calibration by Measurement - by Measurement29
History of the Calibrations - Calibration History30
MEASUREMENT PARAMETERS SETTING - Input32
Selection of Measurement Parameters - Measurement Setup33
Setting Parameters for Channels - Channels Setup35
Setting the Data Logging Functionality - Logger Setup36
Setting Parameters of Auxiliary Functions - Auxiliary Setup38
Setting the RPM Measurement - RPM Setup38
Setting the Parameters of Attenuation Measurements - "SEAT" Setup39
Settings for Vector Calculations - Vector Setup39
Setting the Parameters for Dose Measurements - HAV/WBV Dose Setup39
Triggering Mode and Parameters Selection - Trigger Setup41
Measurement Trigger Setup - Measure Trigger41
Logger Trigger Setup - Logger Trigger42
Alarm Trigger Setting - Alarm Trigger43
Alarm on SMS Trigger Setting - Alarm SMS Notification44
Alarm on E-Mail Trigger Setting - Alarm E-Mail Notification44
Definition of Triggering Conditions for Logger and Alarms - Trigger Events Setup44
DATA AVAILABLE on the DISPLAY - Display47
Selection of the Modes of Measurement Results Presentation - Display Modes47
Setting the Parameters of Graphical Presentations - Display Setup51
Checking the Instrument Powering - Power Supply52
Setting the Display Brightness and Power Saver - Screen Setup52
Checking the Modem Status - Modem Status53
Checking the Specification of the Instrument - Unit Label53
SAVING the MEASUREMENT RESULTS - File54
Saving Files in the Instruments Memory or External Memory55
Controlling Data Storing in the Instruments Memory - Save Options56
Loading Files with the Measurement Results - Load File58
Checking the Contents of the Loaded File - Logger View58
Removing File with the Measurement Results - Delete59
Removing All Files with Measurement Results from Memory - Delete All59
Merging Result and Setup Files Memory - Defragmentation60
Checking the Contents of the Memory - Catalogue60
Checking the Free Space in the Memory - Free Space60
Saving Setup in the Instruments Memory - Save Setup61
Options for Setup Files - Setup Options61
Loading the Files with the Configuration - Load Setup61
Checking the Contents of the USB Memory Disk - USB Directory61
ADDITIONAL SETTINGS - Setup63
Setting the Language of the User Interface - Language64
Return to the Factory Settings - Clear Setup64
Automatic Measurement Start - Auto Start64
Day Time Limits Selection - Day Time Limits64
Selection of the Extended Mode - Ext. I/O Setup65
Turning off Instrument Due to Low External Voltage - Ext. Power Setup66
Programming Keyboard - Keyboard Setup66
Locking the Menu - Menu Lock67
Reference Signal in Vibration Measurements - Reference Levels67
Activating the Remote Control Error Confirmation - Remote Control Setup67
Selection of Detector's Type in the LEQ (RMS) Calculations - RMS Integration67
Setting the Parameters of the Serial Interface - RS232 Setup68
Programming the Instrument's Internal Real Time Clock - RTC68
Selection of Statistics Levels to be Saved in a File - Statistical Levels69
Programming the Instruments Internal Timer - Timer69
Programming the Instruments Socket Named Usb Host - Usb Host Setup70
Setting User Filter Coefficients for 1/1 Octave and 1/3 Octave Analysis - User Filters71
Selection of the Vibration Units - Vibration Units71
Warnings Selection - Warnings72
Parameters of Remote Communication - Wireless Communication72
Selection of the Network Type - Network Setup73
Configuration of Modem Basic Settings - Modem Setup73
Setting of Support Modem Options - Modem Connection74
Configuration of SMS Service - SMS Option75
Configuration of E-Mail Service - E-Mail Settings75
CALCULATION of DOSE PARAMETERS - Auxiliary Functions77
Calculation of Hand-Arm or Whole-Body Vibration Dose77
PRINTING REPORTS - Report79
Edit the User Title of the Report - Title80
Printing the Measurement Results - Print Results80
Selection the Printing Options - Print Options81
10 1/1 and 1/3 Octave Analyser82
Selecting 1/1 Octave or 1/3 Octave Analysis Function82
Configuring 1/1- or 1/3-Octave Analyser82
Selection of 1/1 Octave and 1/3 Octave Bandpass Results as Triggering Source83
Display Options in 1/1 Octave and 1/3 Octave Analysis Mode85
Presentation of 1/1 Octave and 1/3 Octave Analysis Results85
Setting the Scale of the Spectrum Results Presentation - Display Scale86
Setting Parameters of the Spectrum Presentation - Spectrum View87
Setting Parameters for Total Values - Total Values87
Setting User Filter Coefficients for 1/1 and 1/3 Octave - User Filters Setup88
Dosimeter90
Selecting Dosimeter Function90
Selecting Dosimeter Parameters - Dosimeter Setup90
Fft Analyser92
Selecting FFT Analysis Mode92
Selecting FFT Analysis Parameters - FFT Setup92
Display Options in FFT Analysis Mode94
Presentation of FFT Analysis Results94
Setting the Scale of the Spectrum Results Presentation - Display Scale95
Setting Parameters of the Spectrum Presentation - Spectrum View95
Cross-Spectrum96
Selecting Cross Spectrum Function96
Selecting Channels for Cross-Spectrum Analysis - Cross Spectrum Setup96
Sound Intensity98
Selection of Sound Intensity Function98
Selection of Parameters for Sound Intensity Analysis - Intensity Setup98
Reverberation Time99
Selecting RT60 Function99
Setting RT 60 Parameters99
Configuring Results View102
Starting RT60 Measurement102
Visualization of the RT 60 Measurements Results103
Wave Recorder106
Selecting Wave Recorder Function106
Configuring Wave Recording Parameters - Wave Parameters106
Appendix A. REMOTE CONTROL (V4.16.2)107
Input / Output Transmission Types107
Function #1 - Input / Output of the Control Setting Codes107
Function #2 - Read-Out of the Measurement Results in the SLM or VLM Mode109
Function #3 - Read-Out of the Measurement Results in 1/1 OCTAVE and 1/3 OCTAVE Mode112
Function #4 - Read-Out of the Data File from the Internal Flash-Disc And/Or the Special File Located in the RAM Memory113
Function #5 - Read-Out of the Statistical Analysis Results115
Function #6 - Remote Setting of the User Filters116
Function #7 - Special Control Functions118
Function #9 - Writing Setup Files to the Internal Flash-Disc122
Control Setting Codes123
Appendix B. DATA FILE STRUCTURES (V4.16)139
Structure of the SVAN 958A File139
Structure of the Block with Meteorological Data168
Structure of the File with the Results from Level Meter and Wave Recorder Modes169
Structure of the File with 1/1 OCTAVE Analysis Results170
Structure of the File with 1/3 OCTAVE Analysis Results170
Structure of the File with FFT Analysis Results171
Structure of the File Containing Lm Results from Loggers File172
Structure of the File Containing 1/1 or 1/3 OCTAVE Analysis Results from Logger's File172
Structure of the File Containing Fft Analysis Results from Loggers File172
Structure of the File Containing Saved Instruments Setup173
Structure of the File Containing Results from RT60 Function173
Structure of the File Containing Averaged RT60 Measurement Results173
Structure of the Logger File Containing Time-Domain Signal174
Structure of the File with the Results of FFT Cross-Spectrum Analysis174
Structure of the File with the Results of Sound Intensity Analysis174
Contents of the File in the Logger175
Record with the Results175
Record with the State of the Markers180
Record with the Breaks in the Results Registration181
Record with the Breaks Account PAUSE in the Results Registration181
Contents of the Files in the Logger Containing Time-Domain Signal181
Samples Record181
Date and Time182
Appendix C. SVAN 958A TECHNICAL SPECIFICATIONS183
Specification of SVAN 958A as Sound Level Meter (SLM)183
Specification of SVAN 958A as SLM in the Standard Configuration183
Effect of Vibration192
Effect of the SA 277C Outdoor Microphone Kit (Channel 4 Only)193
Effect of the SA 277D Outdoor Microphone Kit (Channel 4 Only)193
Specification of SVAN 958A as Vibration Level Meter (VLM)194
Specification of SVAN 958A as 1/1, 1/3 Octave and FFT Analyser202
Configuration for Sound Inputs202
Specification of SVAN 958A as 1/1, 1/3 Octave and FFT Analyser in the Standard205
Configuration for Vibration Inputs205
1/1 and 1/3 Octave Filters Characteristics206
Digital HP Filter Implemented in 1/1 & 1/3 OCTAVE and FFT Analysis209
FFT Analysis Specification209
Frequency Characteristics of Implemented Broadband Digital Filters213
Digital Weighting Filters Dedicated for Sound Input213
Digital Weighting Filters Dedicated for Vibration Inputs215
Miscellaneous Specification of SVAN 958A224
Specification of the Accelerometers231
Using the SA 277C Outdoor Microphone Kit (Channel 4)236
Using the SA 277D Outdoor Microphone Kit (Channel 4)261
Appendix D. DEFINITIONS and FORMULAE of MEASURED VALUES291
Sound Level Meter291
Basic Terms and Definitions (SLM Mode)291
Definitions and Formulas of the Results (SLM Mode)292
Definitions and Formulas of the Additional Dosimeter Function Results295
Vibration Level Meter296
Basic Terms and Definitions (VLM Mode)296
Definitions and Formulas of the Results (VLM Mode)297
Definitions of the Hand-Arm Vibration Results Available in the Vibration Mode297
Definitions of the Whole-Body Vibration Results Available in the Vibration Mode298
Statistical Levels - LN% Definition299
Appendix E. Reverberation Time Calculations301
Introduction301
RT 60 Reverberation Time Definition and Calculation302
Description of the Decay Curve Recording in Different Measurement Methods304

Svantek SVAN 958A - C.4. FREQUENCY CHARACTERISTICS OF IMPLEMENTED BROADBAND DIGITAL FILTERS

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