Sensidyne Industrial Health and Safety

Svantek SVAN 973 Sound Level Meter

SVAN 973 Sound Level Meter

Svantek SVAN 973 Sound Level Meter
  • SV 973 Sound Level Meter is CLASS 2 instrument in accordance to IEC 61672.

  • Sound exposure meter mode with measurement range up to 141 dB Peak.

  • Wide frequency range up to 20 kHz in sound level meter mode.

  • Microphone in  MEMS technology with lifetime warranty.

  • Automatic calibration starts the calibration and saves the calibration data together with the measurement file, both before and after measurement.

  • The OLED display is a full color and high contrast so it can be used in a sunlight or even at night. The OLED technology doesn’t use back-light giving SV 973 more battery operating time. The size of display is a perfect compromise between power savings and visibility.

  • The time history logging of results such as Leq, Max, Min and Peak is saved on built-in 8  GB memory.

  • The SV 973 can perform real-time frequency analysis in 1/1 octave and  1/3 octave bands (optional).

  • Optional Audio recording works during measurement and is logged in parallel to the time history.

  • Voice comments before or after the measurements allow easy identification of data files.

  • The USB connector can be used for communication with PC software as well as for powering the instrument from an external battery or PC.

 

SV 973 combines Class 2 sound level meter and sound exposure meter in one device.  The meter has been designed in accordance to IEC 61672 and offers a wide frequency range up to 20 kHz (in the sound level meter mode). The unique feature of the SV 973 is the microphone in MEMS technology with a lifetime warranty. 
The meter’s measurement range from 25 to 126 dB enables  its use in industrial and environmental noise measurements. For measurements of noise at work, the dedicated sound exposure meter function shifts the dynamic measuring range of sound level meter to 141 dB Peak. 

The instrument is easily calibrated in the field using an acoustic calibrator as the calibration begins automatically when the microphone is inserted into the calibrator.
The SV 973 can measure broad-band results with all the necessary weighting filters as well as 1/1 octave or 1/3 octave band filters. Audio events recording function works together with sound level meter mode. The data are stored on built-in 8 GB memory and can be easily downloaded to a PC using the Supervisor or SVANPC++ software.

Sound Level Meter

 

Standards

Class 2: IEC 61672-1:2013

Weighting Filters

A, C, Z

Time Constants

Slow, Fast, Impulse

RMS Detector

Digital True RMS detector with Peak detection, resolution 0.1 dB 

Microphone

MEMS ST 973 microphone in 1/2” casing

Preamplifier

Integrated

Total Dynamic Range

25 dBA RMS ÷ 126 dBA Peak (typical from noise floor to the maximum level)

Linear Operating Range

35 dBA RMS ÷ 126 dBA Peak (in accordance to IEC 61672)

Internal Noise Level

Less than 25 dBA RMS

Frequency Range

20 Hz ÷ 20 kHz

Meter Mode Results

Elapsed time, Lxy (SPL), Lxeq (LEQ), Lxpeak (PEAK), Lxymax (MAX), Lxymin (MIN), where x - weighting filter A/ B/ C/ Z; y - time constant Fast/ Slow/ Impulse Ovl (OVERLOAD), Lxye (SEL), LN (LEQ STATISTICS), Lden, LEPd, Ltm3, Ltm5

 

 

 

Measurement Profiles

Simultaneous measurement in three profiles with independent set of filters (x) and detectors (y)

Statistics

Ln (L1-L99), complete histogram in meter mode

Data Logger1

Time-history logging of summary results, spectra with two adjustable logging steps down to 100 ms

Audio Recording1 (optional)

Audio events recording, trigger and continuous mode, 12 kHz sampling rate, WAV format

Voice Comments

Audio records on demand, created before or after measurement, added to measurement file 

Sound Exposure Meter

 

Total Dynamic Range 

40 dBA RMS ÷ 141 dBA Peak (typical from noise floor to the maximum level)

Linear Operating Range

50 dBA RMS ÷ 141 dBA Peak (in accordance to IEC 61672)

Frequency Range

20 Hz ÷ 10 kHz

Exchange Rates

2, 3, 4, 5, 6

Measurement Results

Lxy (SPL), Lxeq (LEQ), Lxpeak (PEAK), Lxymax (MAX), Lxymin (MIN), where x - weighting filter A/ C/ Z; y - time constant Fast/ Slow/ Impulse, Lc-a, DOSE, DOSE_8h, PrDOSE, LAV, LAE (SEL), LAE8 (SEL8), PLAE, (PSEL), E, E_8h, LEPd, PTC (PEAK COUNTER),  PTP (PEAK THRESHOLD %), ULT (UPPER LIMIT TIME), TWA, PrTWA, LN (LEQ STATISTICS), Measurement time, OVL (OVERLOAD TIME %), No Motion time

Frequency Analyser

 

1/1 Octave Analysis Filters1

Real-time analysis meeting Class 1 requirements of IEC 61260-1:2014, centre frequencies from 31.5 Hz to 16 kHz (optional)

1/3 Octave Analysis Filters1

Real-time analysis meeting Class 1 requirements of IEC 61260-1:2014, centre frequencies from 20 Hz to 16 kHz (optional)

General Information

 

Ingress Protection Rating

IP 64 (excluding microphone)

Memory

Built-in 8 GB memory

Display

Colour 96 x 96 pixels OLED type 

Keyboard

8 push buttons

Communication Interfaces

USB 2.0

Power Supply

Four AAA alkaline or rechargeable NiMH batteries (not included) operation time 12 h2

Environmental Conditions

Temperature from -10 °C to 50 °C
Humidity up to 95 % RH, non-condensed

Physical Characteristics

Dimensions: 235 mm x 56 x 20 mm with microphone and preamplifier
Weight: Approx. 225 grams with batteries

 

 

 

1function parallel to the meter mode

2depending on configuration and environmental conditions

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Sensidyne-SV-973_18.pdf 4.53 MB