SV 973 Sound Level Meter
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SV 973 Sound Level Meter is CLASS 2 instrument in accordance to IEC 61672.
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Sound exposure meter mode with measurement range up to 141 dB Peak.
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Wide frequency range up to 20 kHz in sound level meter mode.
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Microphone in MEMS technology with lifetime warranty.
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Automatic calibration starts the calibration and saves the calibration data together with the measurement file, both before and after measurement.
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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.
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The time history logging of results such as Leq, Max, Min and Peak is saved on built-in 8 GB memory.
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The SV 973 can perform real-time frequency analysis in 1/1 octave and 1/3 octave bands (optional).
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Optional Audio recording works during measurement and is logged in parallel to the time history.
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Voice comments before or after the measurements allow easy identification of data files.
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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.
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Sound Level Meter |
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Standards |
Class 2: IEC 61672-1:2013 |
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Weighting Filters |
A, C, Z |
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Time Constants |
Slow, Fast, Impulse |
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RMS Detector |
Digital True RMS detector with Peak detection, resolution 0.1 dB |
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Microphone |
MEMS ST 973 microphone in 1/2” casing |
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Preamplifier |
Integrated |
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Total Dynamic Range |
25 dBA RMS ÷ 126 dBA Peak (typical from noise floor to the maximum level) |
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Linear Operating Range |
35 dBA RMS ÷ 126 dBA Peak (in accordance to IEC 61672) |
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Internal Noise Level |
Less than 25 dBA RMS |
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Frequency Range |
20 Hz ÷ 20 kHz |
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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
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Measurement Profiles |
Simultaneous measurement in three profiles with independent set of filters (x) and detectors (y) |
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Statistics |
Ln (L1-L99), complete histogram in meter mode |
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Data Logger1 |
Time-history logging of summary results, spectra with two adjustable logging steps down to 100 ms |
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Audio Recording1 (optional) |
Audio events recording, trigger and continuous mode, 12 kHz sampling rate, WAV format |
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Voice Comments |
Audio records on demand, created before or after measurement, added to measurement file |
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Sound Exposure Meter |
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Total Dynamic Range |
40 dBA RMS ÷ 141 dBA Peak (typical from noise floor to the maximum level) |
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Linear Operating Range |
50 dBA RMS ÷ 141 dBA Peak (in accordance to IEC 61672) |
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Frequency Range |
20 Hz ÷ 10 kHz |
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Exchange Rates |
2, 3, 4, 5, 6 |
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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 |
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Frequency Analyser |
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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) |
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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) |
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General Information |
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Ingress Protection Rating |
IP 64 (excluding microphone) |
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Memory |
Built-in 8 GB memory |
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Display |
Colour 96 x 96 pixels OLED type |
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Keyboard |
8 push buttons |
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Communication Interfaces |
USB 2.0 |
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Power Supply |
Four AAA alkaline or rechargeable NiMH batteries (not included) operation time 12 h2 |
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Environmental Conditions |
Temperature from -10 °C to 50 °C |
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Physical Characteristics |
Dimensions: 235 mm x 56 x 20 mm with microphone and preamplifier |
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1function parallel to the meter mode
2depending on configuration and environmental conditions
Click on a file below to open. Visit our Technical Library for further documents and resources.
| Filename | Filesize |
Sensidyne-SV-973_18.pdf
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4.53 MB |
SVAN 971 Display Modes