Sound and Vibration Instrument Hire and Calibration
SVAN 307 Noise Monitoring Terminal

| SV 307 : Noise Monitoring Terminal |
|---|
The SV 307 is a Class 1 sound level meter ideally suited to envorinmental monitoring and is available for hire now.
The SV 307 integrates a Class 1 sound level meter with a modem in a compact waterproof housing.
It can perform real time frequency analysis in 1/1 and 1/3 octave bands and save results with the time history data. Additionally, it can record the audio signal as standard WAV files for noise source recognition.
A large colour OLED display and 10 pushbuttons enable easy configuration of the SV 307 in the field without needing an external handset or reconnection to a PC
The system is specially designed for easy installation - SV 307 is small, light weight and easy to install by a single person.
The SV 307 is equipped with a new MEMS microphone. The measurement data is stored on the microSD card.
The large windscreen is highly efficient in reduction of a wind noise effects even at high wind speeds. Metal spikes protects station against birds.
The removable & weatherproof housing protects the SV 307 noise monitoring terminal against extreme weather conditions while fulfilling Class 1 accuracy. The SV 307 has an internal Li-Ion battery. A waterproof mains adapter for charging the battery and powering the station is also included, as well as the option to hire external batteries.
The accurate GPS module provides information on the localization as well as measurement time synchronization.
| Standards | Class 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014 |
| Weighting Filters | A, B, C, Z, LF |
| RMS Detector | Digital True RMS detector with Peak detection, resolution 0.1 dB, Time constants: Slow, Fast, Impulse |
| Microphone | MEMS microphone ST 30 in 1/2” housing |
| Preamplifier | Integrated |
| Linear Operating Range | 30 dBA RMS ÷ 126 dBA Peak (in accordance to IEC 61672) |
| Dynamic Measurement Range | 20 dBA RMS ÷ 126 dBA Peak (typical from noise floor to the maximum level) |
| Internal Noise Level | less than 20 dBA RMS |
| Frequency Range | 20 Hz ÷ 20 kHz |
| Meter Mode Results | Elapsed time, Lxy (SPL), Lxeq (LEQ), Lxpeak (PEAK), Lxymax (MAX), Lxymin (MIN), Lxye (SEL), 2 x LR (ROLLING LEQ),10 x LN (LEQ STATISTICS), Lden, LEPd, Ltm3, Ltm5, GPS coordinates. Simultaneous measurement in three profiles with independent set of filters (x) and detectors (y) |
| Statistics | Ln (L1-L99), complete histogram in meter mode and 1/1 & 1/3 octave analysis Simultaneous measurement in three profiles with independent set of filters and detectors |
| 1/1 Octave Analysis | Real-time analysis meeting class 1 requirements of IEC 61260 (31,5 Hz ÷ 16 kHz) |
| 1/3 Octave Analysis2 | eal-time analysis meeting class 1 requirements of IEC 61260 (20 Hz ÷ 20 kHz) |
| Data Logger | Logging of summary results (SR) and spectra data with interval step down to 1 second and time history (TH) of selected parameters with shorter interval step down to 100 milliseconds. |
| Audio Recording | Time domain records to wav file format on demand with selectable bandwidth and recording period |
| Ingress Protection | Rating IP 65 |
| Remote System Check | Real-time system check and Built-in sound source producing level of 90 dB at 1 kHz |
| Power Supply | Li-Ion rechargeable battery (non-removable) Operation time on internal battery (7.2 V / 10 Ah) up to 6 days AC power supply IP 67 housing External batteries available to hire in place of mains connection |
| Dimensions | 80 mm length; 80 mm diameter excluding windscreen (windscreen diameter 130 mm) |
| Weight | Approx. 1.8 kg |
Sound level meters and particularly microphones are very susceptible to damp, so should not be used outside, unless protected.
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