SVAN 958
Four Channels Sound & Vibration Analyzer
 |
OVERVIEW
The SVAN 958 is
all digital, four channels 20 kHz signal analyser including Type 1 sound
level meter (meeting IEC 61672) and vibration meter (meeting ISO 8041). It
is an ideal choice for the "Human Vibration" (according to the ISO
2631-1,2&5
and ISO 5349-1&2 standards) and noise measurements in the occupational
health and safety monitoring tasks. All required weighting filters,
transducers and adapters for triaxial Whole-Body and triaxial Hand-Arm
vibration measurements
are available with this instrument.
Each of four channels can work simultaneously with independently configured
input (transducer type), filters and RMS detector time constants (e.g.
simultaneous three axis measurement of the Whole-Body vibration and noise
dose).
Three profiles allow parallel measurements with independently defined
filters and RMS detector time constants in every channel. Each
profile/channel provides "multidimensional" analysis of measured signal
(like Leq, LMax, LMin, LPeak, SPL,
SEL in the case of sound measurements or RMS, Peak, VDV, MTVV in the case of
vibration measurements). Advanced time history logging, in non-volatile 32
MB internal memory, provides very powerful measurement capability. The
external USB Memory Stick extends this facility almost unlimitedly. Results
can be easy downloaded to any PC using standard USB (or optional RS 232 and
IrDA) interface and SvanPC+ software.
Using computational power of its digital signal processor the SVAN 958
instrument can perform advanced frequency analysis simultaneously to the
meter mode:
- real time 1/1 or 1/3 octave analysis including statistical calculations
- FFT analysis including cross spectra
- sound intensity measurements
Reverberation Time measurements, noise dose meter and rotation speed
measurements are also available as options for SVAN 958.
The time domain signal recording on the external USB memory stick is also
available as an exceptional option!
Fast USB 1.1 interface (12 MHz) creates real time link for the PC
"front-end" application of the SVAN 958. Instrument can be fully remotely
controlled.
Instrument is powered by four AA standard or rechargeable NiMH batteries
(separate charger is required). The powering of the instrument from the
External DC power source or USB interface is also provided.
Robust and light weight design accomplishes the exceptional features of this
new generation instrument.
FEATURES
Sound & Vibration Meter & Analyser
- Four channels, 20 kHz real time, simultaneous sound and vibration measurements
- FFT real time analysis up to 1920 lines in 22.4 kHz band (option)
- 1/1 and 1/3 octave real time analysis (option)
- Human Vibration measurements meeting ISO 8041:2005, including VDV and MTVV
- Noise measurements Type 1 IEC 61672:2002
- Acoustic dose meter function (option)
- Sound Intensity measurements (option)
- Reverberation Time measurements (option)
- Time domain signal recording (option)
- Advanced Data Logger including spectral analysis (option)
- FFT cross spectra (option)
- Built-in logger function with 32 MB non-volatile internal memory;
- optional USB Memory Stick provides almost unlimited logging capability
- Advanced trigger and alarm functions
- USB 1.1 Client and optional USB Host, RS 232 and IrDA interfaces
- Integration time programmable up to 24 h
- Powered by four AA standard or rechargeable NiMH batteries
- Easy in use, hand held, light weight and robust case
For a PDF version of this document please
click
here.
TECHNICAL SPECIFICATIONS
|
Vibration level meter & analyser |
|
| Standards | ISO 8041:2005 |
| Meter mode | RMS, VDV,
MTVV or MAX, Peak, Peak-Peak Simultaneous measurement in four channels with independent set of filters and detector time constants |
| Analyser (Option) | 1/1
octave1 real time analysis, 15 filters with centre frequencies from 1 Hz
to 16 kHz (Type 1) 1/3 octave1 real time analysis, 45 filters with centre frequencies from 0.8 Hz to 20 kHz (Type 1) FFT1 real time analysis up to 1920 lines with Hanning, Kaiser-Bessel or Flat Top window FFT1 cross spectra measurements RPM1 rotation speed measurements parallel to the vibration measurement (1 ÷ 99999) and more… |
| Filters | Wd, Wk,
Wc, Wj, Wm, Wb, Wg (ISO 2631), Wh (ISO 5439), HP1, HP3, HP10, Vel1,
Vel3, Vel10, VelMF, Dil1, Dil3, Dil10, KB |
| RMS & RMQ Detectors | Digital
True RMS & RMQ detectors with Peak detection, resolution 0.1 dB, Time Constants: from 100 ms to 10 s |
| Accelerometer (option) | SV
39A/L seat accelerometer (100 mV/g sensitivity) for Whole-Body
measurements SV 50 set for Hand-Arm measurements (Dytran 3023M2 accelerometer 10 mV/g sensitivity) Other IEPE accelerometers |
| Measurement Range | Accelerometer dependent, 0.003 ms-2 RMS ÷ 500 ms-2 PEAK (with 100 mV/g sensitivity |
| Frequency Range | Accelerometer dependent, 0.5 Hz ÷ 3 kHz (with SV 39A/L), 2 Hz ÷ 10 kHz (with 3023M2) |
| Sound level meter & analyser | |
| Standards | Type 1: IEC 61672-1:2002 (IEC 60651, IEC 60804) |
| Meter mode |
SPL, Leq, SEL, Lden, Ltm3, Ltm5,
Statistics - Ln (L1-L99), LMax, LMin, LPeak Simultaneous measurement in three profiles per channel with independent set of filters and detectors |
| Analyser (Option) |
1/1 octave1 real time analysis, 15
filters with centre frequencies from 1 Hz to 16 kHz (Type 1) 1/3 octave1 real time analysis, 45 filters with centre frequencies from 0.8 Hz to 20 kHz (Type 1) Reverberation Time analysis in 1/3 octave bands (RT 60) FFT1 real time analysis up to 1920 lines with Hanning, Kaiser-Bessel or Flat Top window FFT1 cross spectra measurements Sound Intensity Measurements and more… |
| Weighting Filters | Standard: A, C, Z and special B and G |
| RMS Detector |
Digital True RMS detector with Peak
detection, resolution 0.1 dB Time Constants: Slow, Fast, Impulse |
| Microphone (Option) |
SV
22, Type 1, 50 mV/Pa, prepolarised 1/2" condenser microphone with SV 12L
preamplifier SV 25, Type 2, dose meter, ceramic 1/2" microphone with integrated preamplifier |
| Measurement Range |
22 dBA RMS ÷ 140 dBA Peak (with 5 dB
margin from noise level and SV 22 microphone) Internal noise level less than 17 dBA RMS |
| Frequency Range | Microphone dependent 10 Hz ÷ 20 kHz, with SV 22 microphone |
|
Basic Data |
|
| Input | IEPE type (channels 1, 2, 3 - LEMO 4 pin & channel 4 - TNC connector) |
| Dynamic Range | 100 dB, 4 x 20 bits A/D converters |
| Frequency Range | 0.5 Hz ÷ 20 kHz, sampling rate 48 kHz |
| Data Logger1 | Time
History logging to internal memory or external USB Memory Stick Time domain signal recording on USB Memory Stick (option) |
| Display | LCD 128 x 64 pixels plus icons with backlighting |
| Memory | 32 MB non-volatile flash type, external USB Memory Stick |
| Interfaces | USB 1.1
Client, USB 1.1 Host, RS 232 (option: SV 55 required), IrDA (option) External I/O - AC output (1 V Peak) or Digital Input/Output (Trigger / Pulse) |
| Power Supply |
Four NiMH
rechargeable batteries (option) operation time > 16 h (4.8 V / 2.6 Ah)
|
| Environmental Conditions |
Temperature from -10 oC to 50 oC Humidity up to 90 % RH, non-condensed |
| Dimensions | 140 x 82 x 42 mm |
| Weight | Approx. 0.6 kg with batteries |
1 each function parallel to the meter
mode
PICTURE
SVAN 958 Four Channels Sound & Vibration Meter & Analyser
