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The Sound Level Meter Data Logger | Noise Sentry is a high-performance integrating Sound Level Meter and data logger. It includes a precision MEMS microphone, an accurate date/time clock and a non-volatile 52000-point recording memory. It can record sound levels and statistics for up to 10 days. Its very small size allows it to be clipped on a person, or embedded within monitored equipment.
Features
- All-digital design
- Individual digital frequency correction and calibration
- Frequency spectrum display
- dB-A and dB-C weighting functions.
- Measures and records max, average (LEQ) and min levels over adjustable intervals.
- An alarm function activates on the instantaneous peak level or the integrated dose.
- Fast and Slow sampling modes.
- Can monitor and record acoustic levels for up to 10 days on a small coin battery.
- Non-volatile memory. In case of battery failure, all recorded data is preserved.
- Noise Sentry Manager application to setup operating and recording parameters, download, visualize and export the recorded data. The application can also be used to monitor acoustic levels in real time.
- LabVIEW driver avalaible
- Designed to comply with: IEC 651/804 Type 2 and ANSI S1.4 Type 2
Applications
- Measurement and data-logging of acoustic dose.
- Monitoring of safe working conditions.
- Activity detection and recording.
- Long-term measurement and recording of acoustic levels for environmental impact studies.
Specifications
- Bandwidth : 20Hz to 20 kHz
- Dimensions : 3.4 cm x 5.7 cm (1.35 x 2 ¼ in)
- Weight : 20 g (0.7 oz)
- Measurements : Max Acoustic Level (linear-Pa or dB-SPL) / Min Acoustic Level (linear-Pa or dB-SPL) / Average Acoustic Level (LEQ) (linear-Pa or dB-SPL)
- Weighting Functions : A / C
- Alarms : Max Instantaneous Level / Max Integrated Level (Dose)
- Battery life : 10 Days (Slow-Mode) / 5 Days (Fast Mode)
- Battery type : CR2032 lithium battery
- Operating temperature range : -20 °C to 70 °C (-4 °F to 158 °F)
- Storage temperature range : -30 °C to 80 °C (-22 °F to 176 °F)
- Noise Floor : 39 dB (typical)
- Saturation Level : 110 dB (typical)
- Resolution : 0.1dB
- Recorded Resolution : 1 dB
- Precision : +-2 dB (50 Hz – 8 kHz) (typical) / +-5 dB (20 Hz – 20 kHz) (typical)
- Sensor Type : MEMS Microphone
- Recording interval : Adjustable 1s to 12H, with 1s resolution
- Recording memory type : Non-Volatile
- Recording/erasure cycles : More than 10 000
- Recording memory Depth : 52 000 individual measurement points
Software
Specifications of Noise Sentry Manager Software
- Windows XP, Windows Vista and Windows 7 compatible
- Real-time display of measurements.
- Displays frequency spectrum
- Complete instrument configuration, including date/time, alarms, values recorded and recording rate.
- Collect and displays data while recording.
- Auto-scale, zoom and pan on all graphs
- Export recorded data to Excel format.
Download the Noise Sentry Manager Software (V3.33, May 31, 2010)
Download the Noise Sentry LabVIEW Driver (V1.40, September 13, 2010)
LabVIEW (from National Instruments)
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