Products

SVAN 979

The SVAN 979 Class 1 Sound & Vibration Analyzer is our flagship device. Your first impression will be the amazing OLED display which features excellent visibility in all light conditions. The instrument’s lightweight and durable aluminium housing not only gives a sense of a firm grip but also protects the valuable electronic device from damage and any influence from electromagnetic interference.
The SVAN 979 has a very large dynamic range of measurement - over 110dB. It’s high-quality GRAS 40AE microphone allows measurement in the frequency range starting as low as 3 Hz. The measurement path has been designed to allow the use of other microphones should you want to measure very low frequencies or very high levels of noise. The microphone preamplifier has also been reinforced with a collar to protect against mechanical damage. One amazing feature of the SVAN 979 is that if you disconnect the microphone preamplifier then you can use the instrument for vibration measurements - simply connect up a cable and a vibration sensor .
The SVAN 979 has an extensive range of hardware and firmware add-ons that includes built-in Bluetooth, windscreen infrared detector, direct connections to GPS module, GPRS or WiFi modem or the totally unique built-in vibration shock sensor that warns the user whenever the instrument itself is exposed to vibrations that may influence the noise measurements.
Two USB connectors allow for the simultaneous operation of USB pen-drives and communication with the computer. The USB connection also allows for audio streaming where the time signal is transferred to the computer and written in the form of a wav file for further analysis.
Usage of this number of advanced features at the same time is possible as the instrument has two high-speed digital signal processors. For example, the SVAN 979 is capable of measuring 2 ms steps of time history, logged simultaneously to audio recording (with 48kHz sampling) and real-time frequency analysis. Only the SVAN 979 can meet such a challenge. All data is stored on a microSD card of any capacity (default is 8GB) .
It is also important to note that unlike other brands which recalculate FFT spectrum to octave bands, the SVAN 979 performs frequency analysis in real-time, whether in octaves, third octaves all the way up to 1/12 octaves.
Setting up such advanced measurements can be very complicated but not in the SVAN 979. The intuitive menu structure of this instrument has been designed to make the measurement experience a pleasure.

FEATURES

  • Class 1 IEC 61672:2002 sound level measurements
  • General vibration measurements (acceleration, velocity and displacement)
  • Three parallel independent profiles
  • 1/1, 1/3 octave real-time analysis
  • 1/6 or 1/12 octave real-time analysis (option)
  • FFT real-time analysis 1600 lines in up to 22.4 kHz band
  • Time-domain signal recording
  • Advanced data logger including spectra’s logging and Audio Events Recording
  • Reverberation Time measurements (RT60)
  • Pure tone detection (option)
  • Acoustic loudness measurements (option)
  • Advanced trigger and alarm functions
  • User programmable Band-Pass Filters
  • Windscreen and extension cable auto detection
  • Built-in self vibration measurements
  • MicroSD card for mass data memory
  • Remote communication by GPRS or LAN & WLAN (optional hardware required)
  • GPS time synchronisation (optional hardware required)
  • USB 1.1 Client interface (real-time PC “front end”)
  • Bluetooth, RS 232 and IrDA interfaces
  • Super contrast (10000:1) colour OLED display
  • Built-in signal generator
  • All weather microphone protection SA 205
  • Hand held, light weight and robust case
  • Easy in use

SVAN 979 Sound Level Meter Specification 

Standards Class 1: IEC 61672-1:2002 (PTB approval 21.21/13.06)
Number of Profiles 3
Weighting Filters A, B, C, Z, G
Time constants Slow, Fast, Impulse
RMS Detector Digital True RMS detector with Peak detection, resolution 0.1 dB 
Microphone GRAS 40AE, 50 mV/Pa, prepolarised 1/2” condenser microphone
Preamplifier SV 17 IEPE type / 200V external polaristation compatible
Linear Operating Range 22 dBA RMS ÷ 140 dBA Peak (in accordance to IEC 61672)
Total Dynamic Measurement Range 12 dBA RMS ÷ 140 dBA Peak (typical from noise floor to the maximum level)
Internal Noise Level  less than 12 dBA RMS
Dynamic Range >110 dB
Frequency Range

3.15 Hz ÷ 20 kHz with GRAS 40AE microphone

Meter Mode Results SPL, Leq, SEL, Lden, LEPd, Overload time, Ltm3, Ltm5, LMax, LMin, LPeak,
Simultaneous measurement in three profiles with independent filters and detectors
Statistics

Ln (L1-L99), complete histogram in meter mode, averaging: linear of with detector (exponential)

Ln (L1-L99) statistics in 1/1 or 1/3 octaves (if option is active)

Data Logger

logging of summary results with step from 10 s (auto-save function)

logging of time history with step from 2 ms

Audio Recording (option) Audio events recording during measurement, trigger or continuous mode, 12 / 24 / 48 kHz sampling rate, 16 or 24 bit, wav format
Wave Recording (option) Time domain signal recording during measurement 12 / 24 / 48 kHz sampling rate, 16 or 24 bit, wav format
    

Sound Analyser

1/1 Octave Analysis (included)

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 31.5 Hz to 16 kHz (audio band), selectable weighting filter, selectable detector or

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 1 Hz to 16 kHz  (full band), selectable weighting filter, detector linear

1/3 Octave Analysis (inlcuded)

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 20 Hz to 20 kHz (audio band), selectable weighting filter and selectable detector or

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.8 Hz to 20 kHz  (full band), selectable weighting filter, linear detector

1/6 Octave Analysis (option)

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 20 Hz to 21.4 kHz (audio band), selectable weighting filter and selectable detector or

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.73 Hz to 21.4 kHz  (full band), selectable weighting filter, linear detector

1/12 Octave Analysis (option)

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 20.3 Hz to 22 kHz (audio band), selectable weighting filter and selectable detector or

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.71 Hz to 22 kHz  (full band), selectable weighting filter, linear detector

 FFT Analysis (included)

400 or 800 or 1600 lines in selectable band from 78 Hz to 20 kHz with selectable weighting filter, selectable averaging: linear or exponential, and selectable window

Tonality (option) Pure tone detection, FFT -based,  according to Joint Nordic Method and ISO 1996
RT 60 (included)

Reverberation time analysis in 1/3 octaves, selectable method: decay or impulse

Signal Generator (included) Sine, White noise, Pink noise
STIPA (included) Speech Transmission Index for Public Address Systems, calculation of STI, quality, CIS
RPM (option) Rotation measurement option without Laser Tachometer (option), measurement of RPM, RPS, RMAX, RMIN
User filters (option) Selectable real time filter: low pass, high pass and band pass filters option
  

Vibration Level Meter

Standards ISO 10816-1
Number of Profiles 3
Weighting Filters

Acceleration: HP1, HP3, HP10, Wh; Velocity: Vel1, Vel3, Vel10, Displacement: Dil1, Dil3, Dil10

Machine filter: VelMF (ISO 10816-1)

RMS Detector Digital True RMS detector with Peak detection, resolution 0.1 dB
Time constants: from 100 ms to 10 s
Meter mode results RMS, MAX, Peak, Peak-Peak, Overload time, MTVV,
Accelerometer (option) SV 80 IEPE, single axis, sensitivity 10 mV/(ms-2) ~ 100 mV/g
Measurement Range 0.01 ms-2 RMS ÷ 500 ms-2 Peak (with SV 80)
Frequency Range 1 Hz ÷ 5 kHz (with SV 80 and HP or HP1 filter)
  

Vibration Analyser

1/1 Octave Analysis (included)

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 1 Hz to 16 kHz  (full band), HP weighting filter, detector linear

1/3 Octave Analysis (inlcuded)

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.8 Hz to 20 kHz  (full band), HP weighting filter, detector linear

1/6 Octave Analysis (option)

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.73 Hz to 21.4 kHz  (full band), HP weighting filter, detector linear

1/12 Octave Analysis (option)

Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.71 Hz to 22 kHz  (full band), HP weighting filter, detector linear

 FFT Analysis (included)

400 or 800 or 1600 lines in selectable band from 78 Hz to 20 kHz with selectable weighting filter, selectable averaging: linear or exponential, and selectable window

RPM (option) Rotation measurement option without Laser Tachometer (option), measurement of RPM, RPS, RMAX, RMIN
User filters (option) Selectable real time filter: low pass, high pass and band pass filters option
     

General information

Input LEMO 7-pin: Direct AC, Direct AC with 200 V polarisation, Direct DC or IEPE type with TEDS
Self-vibration Monitoring Built-in shock detection
Dynamic Range 115 dB
Frequency Range 0.5 Hz ÷ 22.4 kHz, sampling rate 48 kHz
Memory 32 MB non-volatile flash type, micro SD card 8 GB (removable & upgradeable)
Display Colour 320 x 240 pixels, OLED type
Keyboard 9 push buttons
Communication Interfaces USB 1.1 client
Bluetooth
RS 232 (with SV 55 option)
GPS time synchronisation and positioning (option)
External I/O - AC output (1 V Peak) or Digital Input/Output (Trigger – Pulse)
 Power supply Four AA rechargeable NiMH batteries (included)
USB interface 500 mA HUB
External power supply 6 V/500 mA DC ÷ 15 V/250 mA DC
SA 17A external battery pack (option)
Environmental Conditions Temperature from -10 oC to 50 oC
Humidity up to 90% RH, non-condensed
Dimensions 305 mm x 79 x 39 mm (including microphone and preamplifier)
Weight  Approx. 0.6 kg with batteries

 

*Continuous product development and innovation are the policy of our company. Therefore, we reserve the right to change the specifications without prior notice.

Main applications:

  • Sound measurements
  • Environmental noise
  • Occupational noise
  • Building acoustic
  • Ultrasound/infrasound
  • High level/low level noise
  • Machine vibration
  • Tonality measurement

Photos

Send enquiry

Quick e-mail access

Send enquiry

Data Sheet, User Manual

download related files

Created by Click House