SVAN 958A

Four-Channel Sound & Vibration Analyser

SVAN 958A Class 1 Four-channel Sound & Vibration Analyser is dedicated for all applications that require simultaneous class 1 sound and vibration assessment. Each of four input channels can be independently configured for sound or vibration detection with different filters and RMS detector time constants giving users an enormous measurement flexibility.

The real advantage of SVAN 958A is the capability to perform advanced analysis simultaneously to the level meter mode. In practise this allows the user to obtain broad-band results such as Leq, RMS, LMax, LMin, LPeak together with four-channel analysis like FFT or octave band analysis.

List of available analyser functions includes FFT, 1/1 or 1/3 octave, cross spectra, sound intensity, RT 60 and more. The 4-channel time-domain signal recording to .wav format is available as well as an exceptional feature! All measurement results are stored in non-volatile 32 MB internal memory or USB memory stick and can be easily downloaded to a PC with SvanPC++ software. SVAN 958A with RS 232 interface (SV 55) can be offered with GPRS modem or LAN & WLAN connection module.

Together with SvanPC++_RC remote communication software, these interfaces provide easy remote access to instrument settings & data over Internet and local area network. Instrument is powered from four AA standard or rechargeable batteries as well as from the external DC power source or USB interface. Robust case and light weight design accomplish the exceptional features of this new generation instrument.

Features
  • Four channels sound or vibration configurable
  • Human Vibration measurements meeting ISO 8041:2005 including VDV and MTVV
  • Sound level meter Class 1, IEC 61672
  • Advanced data logger including spectral analysis
  • USB memory stick providing almost unlimited logging capability
  • Advanced trigger and alarm functions
  • USB 1.1 Client and USB Host interfaces
  • RS 232 for modems support (GPRS, Ethernet, WLAN)
  • Powered by four AA standard or rechargeable batteries
  • Easy in use, hand held, light weight and robust
Specifications
Standards Class 1: IEC 61672-1:2002
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 (option) MK 250, Class 1, 50 mV/Pa, prepolarised 1/2″e
Preamplifier (option) SV 12L IEPE type
Linear Operating Range 26 dBA RMS ÷ 140 dBA Peak (in accordance to IEC 61672)
Total Dynamic Measurement Range 16 dBA RMS ÷ 140 dBA Peak (typical from noise floor to the maximum level)
Internal Noise Level less than 16 dBA RMS
Dynamic Range >100 dB
Frequency Range 3.5 Hz ÷ 20 kHz with MK250 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 30 s (auto-save function) logging of time history with step from 10 ms
Wave Recording (option) Time domain signal recording during measurement, trigger or continuous mode, 12 / 24 / 48 kHz sampling rate, 16 or 24 bit, wav format
Analyser options
  • FFT analysis up to 1600 lines in 20 kHz band
  • 1/1 and 1/3 octave real-time analysis
  • Time-domain signal recording
  • Sound intensity
  • FFT cross spectra
  • RT 60 reverberation time
  • Acoustic dose meter
  • Human Vibration measurements