詳情：
SV 271 LITE is a portable monitoring system housed in a waterproof case dedicated for periodic OUTDOOR measurementsThe station is based on SVAN 971 which can be easily removed from the case and used as a hand-held sound level meterSVAN 971 is a Class 1 TYPE APPROVED sound level meter in accordance with IEC 61672-1 standardThe TIME-HISTORY of results such as Leq, Max, Min and Peak with two simultaneous logging steps is saved on a 8 GB microSD card (upgradeable up to 128 GB)The light-weight microphone protection kit gives an easy access for calibration with an acoustic calibrator. Once the calibration signal is detected, the system starts the AUTO-CALIBRATIONThe LARGE WINDSCREEN is highly efficient in reduction of a wind noise effects even at high wind speedsMilitary standard CONNECTORS provide reliable, robust and waterproof cable connectionsStation uses waterproof CHARGER that is designed for outdoor useStation can be powered from, internal battery or external DC power supply and is ready for direct connection of a SOLAR PANEL. The powering is managed by the intelligent charging unitThe option for 1/1 OR 1/3 OCTAVE REAL-TIME ANALYSIS allows the analysis of the noise frequency contents. It can be activated at any time by entering an activation codeThe option of EVENT RECORDING works during measurement and is logged in parallel to time history. Once downloaded to PC it can be played back. Settings such as triggers or recording time are adjustable. It can be activated at any time by entering an activation codeSvanPC++ Environmental Monitoring is designed for post-processing of data recorded by monitoring station. The module offers a powerful calculator and an automated noise event finder for noise source identification. Thanks to its “Projects" functionality, SvanPC++_EM allows to combine and compare data from multiple measurements as well as create and save reports in MS Word™ templates. The module can be activated at any time by entering the activation code
SV 271 LITE is an outdoor monitoring system based on type approved SVAN 971 Class 1 sound level meter. The IP 65-rated case contains a lead-acid battery which operating life can be easily extended by connecting an external battery or a solar panel. The intelligent charging unit enables use of a solar panel without expensive controllers or heavy batteries. The case is fitted with very robust, waterproof connectors (military standard) and is supplied with an IP 65 external power supply. The light-weight microphone protection kit can be easily installed on a mast with standard mounting threads. All accessories fit conveniently into a second carrying case. The system provides broad-bａnd results such as Leq, Max, Min and Peak with all standard weighting filters together with an incredible time-history logging feature with two adjustable logging steps. The broad-bａnd results can be recorded in three acoustic profiles which enable measurements to be taken with 3 different filters (e.g. A, C, Z) as well as 3 different detector time constants (e.g. Fast, Slow, Impulse). The SVAN 971 can be easily removed from the case and used as hand-held sound level meter. | Standards | Class 1: IEC 61672-1:2013 | | 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 | | Calibration | Automatic calibration @ 114dB/1kHz | | 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 | SPL, Leq, SEL, Lden, Ltm3, Ltm5, LMax, LMin, LPeak, “running Leq" up to 60 minutes
Simultaneous measurement in three profiles with independent set of filters and detectors | | 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 (option) | 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 | | | Noise Dosemeter | | | Dosimeter Mode Results (option) | SPL, Leq, SEL, LPeak, Dose, D-8h, Lav, SEL8, PSEL, E, E-8h, TWA, ’Peak Counter’ and more
Exchange Rate 2, 3, 4, 5, 6 | | | Sound Analyser | | | 1/1 Octave Analysis (option) | Real-time analysis meeting Type 1 requirements of IEC 61260, center frequencies from 31.5 Hz to 16 kHz available simultaneously with three profiles for broadbａnd measurements (SLM), time-history logging and audio recording | | 1/3 Octave Analysis (option) | Real-time analysis meeting Type 1 requirements of IEC 61260, center frequencies from 20 Hz to 20 kHz available simultaneously with three profiles for broadbａnd measurements (SLM), time-history logging and audio recording | | | General information | | | Ingress Protection Rating | IP 65 (excluding microphone) | | Input | Preamplifier (60 UNS thread) | | Memory | MicroSD card 8 GB (removable & upgradeable) | | Display | Colour 96 x 96 pixels OLED type | | Keyboard | 8 push buttons | | Communication Interfaces | USB 2.0 client | | SV 75 RS 232 cable (optional) or SV 76 RS 232 cable with external power supply connector (option) | | Power supply | Four AAA alkaline or rechargeable NiMH batteries (not included) | | USB interface 100 mA HUB | | Environmental Conditions | Temperature from -10 oC to 50 oC | | Humidity up to 95% RH, non-condensed | | Physical Characteristics | Dimensions: 232,5 mm x 56 x 20 mm (including microphone and preamplifier)
Weight: Approx. 225 grams with batteries |
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