Sound and Vibration Instrument Hire and Calibration
SVAN 971 Sound Level Meter
| SVAN 971 : Sound Level Meter - Class 1 |
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The SVAN 971 is a Class 1 sound level meter in accordance to IEC 61672 and is available for hire now.
The instrument is extremely small but offers unprecedented state of the art technology. The instrument’s user interface makes both configuration and measurement easier than ever before. For those who do not need to alter the measurement settings, the SVAN 971 has an extremely simple operational mode with only Start/Stop controls. This means that the SVAN 971 is the ideal choice for many applications including industrial noise measurement for health and safety, short term environmental noise monitoring and general noise measurements for acoustic consultants or technical engineers.
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 instrument also includes a built-in vibration sensor that provides information about vibrations that could influence the measurements.
The SVAN 971 measures broad-band results with all the necessary weighting filters as well as 1/1 octave or 1/3 octave band filters.
It also offers time-history logging providing broad-band results and spectra with adjustable logging steps.
The audio events recording function works together with sound level meter mode.
The data are stored on a microSD card and can be easily downloaded to a PC using the Supervisor software.
- Standards Class: 1: IEC 61672-1:2002
- Weighting Filters: A, B, C, Z
- Time Constants: Slow, Fast, Impulse
- RMS Detector: Digital True RMS detector with Peak detection, resolution 0.1 dB
- Microphone: ACO 7052E, 35 mV/Pa, prepolarised 1/2” condenser microphone
- Preamplifier: SV 18 detachable
- Linear Operating Range: 25 dBA RMS ÷ 140 dBA Peak (in accordance to IEC 61672)
- Total Dynamic Measurement Range: 15 dBA RMS ÷ 140 dBA Peak (typical from noise floor to the maximum level)
- Internal Noise Level: less than 15 dBA RMS
- Dynamic Range: >110 dB
- Frequency Range: 10 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 LR (ROLLING LEQ OPTION), 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 Logger: Time-history logging of summary results, spectra with adjustable double logging steps down to 100 ms
- Audio Recording: 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 level meters and particularly microphones are very susceptible to damp, so should not be used outside, unless protected.
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