SVAN 947

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SVAN 947

Sound & Vibration Analyser

OVERVIEW

The SVAN 947 is all digital, Type 1 sound level meter (SLM), vibration meter and analyser. It is intended to general acoustic measurements, environmental noise monitoring, occupational health and safety monitoring.

Three acoustic or vibration profiles can be measured in parallel with independently defined filters and RMS detector time constants (concurrent Impulse, Fast and Slow measurements are possible). RMQ detector enables one to measure directly the Vibration Dose Value.

All required weighting filters (e.g.: A, C, W-Bxy, W-Bz or H-A), including the latest ISO 2631 -1 standard, are available with this instrument. Using computational power of its digital signal processor the SVAN 947 can perform real time 1/1 & 1/3 octave analysis including statistical calculations.

The high resolution FFT and pure tone detection options further extend the capabilities of this unit. Fast USB 1.1 interface (12 MHz) creates real time link for the application of the SVAN 947 as a PC "front-end".

Measurement results can be stored in large (8, 16 or 32 MB), non-volatile memory and easy downloaded to any PC using USB 1.1 or RS 232 interface and SvanPC software.

Thanks to built in rechargeable battery and robust, lightweight construction, the SVAN 947 can be used in hard environmental conditions over the work day.

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FEATURES

Sound Level Meter & Analyser

  • noise measurements (SPL, Leq, SEL, Lden, TaktMax and statistics) with Type 1 accuracy
  • parallel Impulse, Fast and Slow detectors for the measurements with A, C or Lin filters
  • one measurement range 24 dBA - 140 dBA in the SLM mode
  • 1/1 and 1/3 octave real time analysis parallel to the SLM operation
  • FFT calculation (1920 lines in real time up to 20 kHz) spectra parallel to the SLM operation (optional)

Vibration Meter & Analyser

  • vibration measurements according to ISO 2631 -1 with Type 1 accuracy (ISO 8041)
  • parallel Peak, RMS (incl. MTVV) and RMQ (incl. VDV) measurements
  • 1/1 and 1/3 octave real time analysis
  • FFT calculation (1920 lines in real time up to 20 kHz) spectra parallel to the SLM operation (optional)
     

General

  • internal buffer for logging more then two weeks of 1 sec RMS/SPL/Peak results (8, 16 or 32 MB of non-volatile memory)
  • USB 1.1 and RS 232 interfaces
  • built in temperature and static pressure measurements
  • built in rechargeable battery (operational time >8 h): remote battery unit available
  • handheld, robust case
  • light weight (only ca 600 grams)

For a PDF version of this document please click here.

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TECHNICAL SPECIFICATIONS

Sound level meter Type 1: IEC 651, IEC 804 and IEC 61672-1
  Leq, Lmax, Lmin, Lpeak, SPL, SEL, Lden, Ltm3, Ltm5, statistics - Ln (L1-L99)
  Time history for all A, C, Lin (Z) filters in parallel
Vibration meter Type 1: ISO 8041, RMS, Peak, Max, Min and MTVV value, VDV (RMQ), time history
Sound & Vibration Analyser Real time 1/1 and 1/3 octave (optional) analysis with statistics (spectra recording speed down to 2 ms),
  1920-line FFT spectra calculated in the real time for 20 kHz and sub-bands (optional)
Input TNC with IEPE power supply for the SV 12 preamplifier or accelerometer
Measurement range 24 dBA - 140 dBA or 0.003 ms-2 - 1000 ms-2 (with 10 mV/mS-2 accelerometer)
Dynamic range 120 dB (in the SLM mode)
  100 dB (in the Vibration and Analyser mode)
  A/D conversion: 2 x 20 bits
Frequency range 10 Hz - 20 kHz for sound and I Hz - 20 kHz for vibration
  Sampling rate: 48 kHz
Weighting filters A, C and Lin (Type 1: IEC 651, IEC 804 and IEC 61672-1) and W-Bxy, W-Bz, W-Bc, H-A, Wk, Wd, Wc, Wj (ISO 8041 and ISO 2631 -1)
1/1 octave filters 15 filters with centre frequencies from 1 Hz to 16 kHz Type 1 - IEC 1260
1/3 octave filters 45 filters with centre frequencies from 0.8 Hz to 20 kHz (optional)
RMS & RMQ detector Digital True RMS & RMQ with Peak detection, resolution 0.1 dB, integration time programmable up to 24 h
Time constants Slow, Fast, Impulse (in parallel)
Microphone SV 22, prepolarised, 50 mV/Pa, 112" condenser microphone
Display LCD 97x32 pixels plus icons with backlight
Memory 8, 16 or 32 MB, non-volatile (Flash type)
 
Analogue output AC 0.5 VRMS
Interfaces USB 1.1 and RS 232
Power supply Built in rechargeable battery 4.8 V /1.5 Ah
  External power supply 9 - 15 VDC / 700 mA
  Internal battery operating time > 8 h
Environmental conditions Temperature from -10 ˚C to 50 ˚C
  Humidity up to 90% RH, non condensed
Dimensions 298 x 84 x 44 mm (with microphone and preamplifier)
Weight approx. 0.6 kg with battery, microphone and preamplifier

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PICTURE

SVAN 947 Analyser

 

 

 

 Screen Shots

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