SVAN 979 is the most advanced and powerful single channel instrument for general acoustic and vibration measurements ever made. The list of the instrument outstanding features and functionalities includes:

  • function is very useful in measurements requiring unattended monitoring.

    Moreover, instrument is able to perform advanced measurement techniques like MLS, TDS etc. thanks to built-in sophisticated signal generator.

SVAN 979 is designed for easy communication with computers by built-in ports USB client and USB host. In practice it means full remote control over the instrument from the PC. Fast USB 1.1 interface (12 MHz) creates real-time link for the PC "front-end" application of the SVAN 979 instrument .

SvanPC+_VR viewer software provides easy local communication with PC, data transfer and instrument’s settings configuration. This already advanced and user-friendly application can optionally be extended by SvanPC+_RC remote communication module (GPRS, LAN or WLAN transmission) and SvanPC+_EV software for environmental monitoring data processing.

These exceptional features make SVAN 979 the leading product for measurements in field (environmental monitoring). SVAN 979 is powered from standard or rechargeable AA batteries. The powering of the instrument from the External DC power source or USB interface is also provided. Robust and light weight design accomplishe the exceptional features of this new generation instrument.

  • Type 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
  • 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
  • Pure tone detection
  • Acoustic loudness measurements
  • Advanced trigger and alarm functions
  • User programmable Band-Pass Filters
  • Windscreen and extension cable auto detection
  • Built-in self vibration measurements
  • Micro SD card for mass data memory
  • USB 1.1 Host interface providing remote communication by GPRS
  • LAN & WLAN or GPS time synchronisation and many other functional extensions
  • 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 Technichal specifications

Standards Type 1: IEC 61672-1:2002
Meter mode SPL, Leq, SEL, Lden, Ltm3, Ltm5, Statistics - Ln (L1-L99), LMax, LMin, LPeak Simultaneous measurement in three profiles with independent set of filters and detectors

Analyser 1/1 or 1/3 octave1 real-time analysis
1/6 or 1/12 octave1 real-time analysis (option under development)
FFT 1 real-time analysis 1600 lines, up to 20.0 kHz band (option)
Loudness1 based on ISO 532B standard and Zwicker model (option)
Pure tone detection meeting ISO 1996-2 (Tonality1option)
Reverberation time analysis in 1/3 octave bands (RT 60 option)
User programmable second order band pass filters1 (option)
and more...

Weighting filters A, C , Z, B, G
RMS Detector Digital True RMS detector with Peak detection, resolution 0.1 dB,
Time Constants: Slow, Fast, Impulse
Microphone GRAS 40AE, 50 mV/Pa, prepolarised 1/2” condenser microphone with SV 17 preamplifier

Measurement Range

22 dBA RMS ÷ 140 dBA Peak

Internal Noise Level less than 12 dBA RMS
Frequency Range

3.15 Hz ÷ 20 kHz, with GRAS 40AE microphone

Standards ISO 10816-1, ISO 6954:2000, DIN 45669-1 (required by DIN 4150-2)
Meter mode RMS, MAX, Peak, Peak-Peak
Simultaneous measurement in three profiles with independent set of filters and detectors
Analyser  1/1 or 1/3 octave1 real-time analysis
1/6 or 1/12 octave1 real-time analysis (option under development)
FFT1 real-time analysis 1600 lines, up to 20.0 kHz band (option)
RPM1 rotation speed measurement parallel to the vibration measurement (option)
Advanced enveloping option dedicated for bearing diagnostics (option)
User programmable second order band pass filters1 (option)

HP1, HP3, HP10, Vel1, Vel3, Vel10, VelMF, Dil1, Dil3, Dil10, KB

RMS & RMQ Detectors Digital True RMS detector with Peak detection, resolution 0.1 dB
Time constants: from 100 ms to 10 s
Accelerometer (option) DAny IEPE accelerometer

Measurement Range

Accelerometer dependent

Frequency Range

0.5 Hz ÷ 22.4 kHz (transducer dependent)

Input Direct AC, Direct AC with 200 V polarisation, Direct DC or IEPE type with TEDS (LEMO 7-pin)
Dynamic Range 115 dB
Frequency Range 0.5 Hz ÷ 22.4 kHz, sampling rate 48 kHz
Data logger1 Time-history logging with logging step down to 1 millisecond
Time-domain signal recording and audio events recording function,
Micro SD Card 8 GB (included), USB Memory Stick (not included)
Signal Generator Sine, Sweep, White noise, Pink noise etc. (option)
Display Super contrast (10000:1) OLED 2.4” colour display (320 x 240 pixels)
Memory 32 MB non-volatile flash type, micro SD card 8 GB (included) or external USB Memory Stick (not included)
Interfaces USB 1.1 Client, USB 1.1 Host, Bluetooth, RS 232 (with SV 55 option), IrDA (option)
Extended I/O - AC output (1 V Peak) or Digital Input/Output (Trigger – Pulse)
Power supply
Four NiMH rechargeable batteries (option) operation time > 16 h (4.8V / 2.6 Ah)2
Four AA batteries (alkaline) operation time > 12 h (6.0V / 1.6 Ah)2
SA 17A external battery pack operation time > 24 h (option)2
External power supply 6 V/500 mA DC ÷ 15 V/ 250 mA DC
USB interface 500 mA HUB
Environmental Conditions
Temperature from -10oC to 50oC
t Humidity up to 90 % RH, non-condensed
Dimensions 305 x 79 x 39 mm (with microphone and preamplifier)
Weight Approx. 0.6 kg with batteries
1each function parallel to the meter mode
2with USB 1.1 Host function not active and backlight off



Appendix A: Remote Control
Appendix B: Data File Structures
CE Declaration of Conformity