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SoundCity 831C noise meter
Price: Liên hệ
Model | 831C |
Manufacturer | Larson Davis |
Power supply | |
Weight | |
Size | |
Condition | Còn hàng |
Warranty | 12 tháng |
I. Specification of noise meter SoundCity 831C
Simplify measurements:
- Connectivity is key - All cellular, WiFi and wired networks are available to you when using the SoundCity sound meter. This meter can even act as its own WiFi hotspot.
- Multiple platforms, same control - Whether you're setting up checks on your watch, checking in remotely from your laptop or receiving alerts from your smartphone, you'll be working with the same one interface and menu on all platforms.
- Customizable for your application - From complete outdoor trackers to low-noise options to automatic event detection, SoundCity acoustic meters are designed to help meet the testing needs of Friend.
- Color LCD Interface - Full color user interface allows you to interpret data more easily, right from the meter.
Technical optimization:
- A thoughtful design process that ensures your needs are met, from international standards to functionality.
- IEC 61672-1: 2013, ANSI S1.4-2014 Class 1 built-in sound level meter
- Real-time frequency analysis in frequency bands 1/1 and 1/3 octave, IEC 61260: 2014 and ANSI S1.11-2014 Class 1 compliant
- > 120 dB dynamic range
- 2 GB internal memory, expandable by USB
- Full range AC output
- Low noise option available (831C-LOWN).
- The Larson Davis SoundCity 831C noise meter is extremely versatile, performing the functions of several instruments. It puts the combined features of an accurate Class 1 sound level meter, environmental noise analyzer and real-time frequency analyzer in the palm of your hand or on the net. It expands on the tradition of cutting-edge equipment that precedes it in providing value, innovation and functionality in a rugged, one-handed, expandable package backed by a factory warranty. 2 years, 24 hour application support, complete customer satisfaction, and accredited/calibrated factory service.
Solutions with your instrumentation:
- Easy setup and data download – SoundCity meters offer direct setup on the keypad, touch screen or via the meter's web interface, with streamlined data export to Excel® physical.
- ANY LEVELTM - Never miss an important audio metric with the ability to view and store multiple time weights (Slow, Fast, and Pulse) and frequency weights (A, C and Z) simultaneously.
- Integration flexibility - Designed to allow integration into a larger or custom solution, SoundCity enables the connection of accessories, internal meters for accurate data synchronization and interoperability. like with the local language.
The solution with your outdoor set:
- On-Demand Data - Access the meter from any location to make setup modifications, view current noise levels, and modify alarms.
- Instant Alerts - Get instant notification of noise events and use recorded audio files to assess the cause.
- Long-Term Remote Power - Lithium Iron Phosphate batteries combined with a solar panel provide a continuous, sustainable means of keeping your measurements running.
- Avoid field trips - With access to measurements, event alerts, and uninterruptible power, you can spend time in the office, instead of traveling to remote locations.
Connection:
- Cellular, WiFi or Wired - Choose your network by choosing what to plug into the USB port. You can choose cellular using the Sierra wireless gateway for portable or permanent applications, WiFi for near wireless, and wired (Ethernet) for fixed locations. One USB hub can be used to support multiple USB devices.
- Expandable USB Memory - Easily expand the 831C memory by adding a USB memory stick. Data is written directly to the USB memory so it is always available and the data is protected if the USB memory is accidentally removed..
II. Specifications of SoundCity 831C noise meter
GENERAL SPECIFICATIONS |
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Reference Level |
114.0 dB re. 20 μPa | |||
Reference Level Range |
Single large range for SLM measurements |
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Reference Frequency |
1000 Hz | |||
Reference Direction |
0° is perpendicular to the microphone diaphragm |
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Operating Temperature |
≤ ± 0.5 dB error between -22°F to +122 °F (-30 °C to 50 °C) | |||
Storage Temperature |
-40 °F to 176 °F (-40 °C to 80 °C) |
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Humidity |
≤ ± 0.5 dB error from 30% to 90% relative humidity at 104 °F (40 °C) | |||
Equivalent Microphone Impedance |
12 pF |
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Effect of an Extension Cable |
None up to 200 ft (61 m) with EXCxxx cable | |||
Approvals |
CE, ROHS, WEEE |
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Extended Weather Options |
-40 °F to +158 oF (-40 °C to +70 oC) operation with CER-831-E | |||
Resolution Specifications |
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Levels |
0.1 dB | |||
lapsed Time |
0.1 s |
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Real Time Clock |
1s |
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Integration Time |
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Time Averaged Levels and Sound Exposure Levels |
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Minimum |
0.1 s |
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Maximum with Daily Autostore Enabled |
Unlimited | |||
Maximum with Daily Autostore Disabled |
> 23 days with error < 0.5 dB |
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Ln Statistics |
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Number of Selectable Parameters |
6 in xx.xx% format |
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Spectral Statistics |
Requires Octave Analysis option (831C-OB3) | |||
Markers |
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Number of Markers |
10 | |||
Prenamed Markers |
Truck, Automobile, Motorcycle, Aircraft, Exclude |
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Back Erase |
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Back Erase Time |
5or10s |
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Measurement Control Modes |
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Available Modes |
Manual Stop, Timed Stop, Stop when Stable, Continuous, Single Block Timer, Daily Block Timer |
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Timed Stop |
Time in hh:mm:ss | |||
Stop When Stable |
Delta level in xx.x dB and time in hh:mm:ss |
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Continuous with Daily Auto-Store |
1, 2, 4, 6, 12, 24, 48, 96 or 144 files per day, automated file numbering “yymmddnn.LD0” | |||
Restart after Power Failure |
Automatic if powered by 12 VDC and continuous run mode |
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Single Block Timer |
Start date and time to end date and time | |||
Daily Block Timer |
Up to 3 blocks between each start and end date |
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Clock Stability |
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<1secin24hours,at75oF(+24oC) |
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<10secin30days,at-40°Fto+158°F(-40°Cto+70°C) |
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<1swhenusingNTP |
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Microphone Input |
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Connector |
Latching 5-pin connector |
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Input Impedance |
100 kΩ and 300 pF | |||
Full Scale Input (0 dB gain) |
14 Vpeak |
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ICP Current (requires ADP074) |
4mA | |||
AC/DC Output |
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Jack |
2.5 mm (32 in) female | |||
AC Output Voltage Range |
± 14 Vpeak (preamplifier output) |
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± 2.1 Vpeak with 0, 20 or 40 dB gain (for LINE inputs) |
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AC Output Recommended Load |
10 kΩ or greater |
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DC Output Voltage Scale |
10 mV per dB, 0 V for 0 dB, 1 V = 100 dB | |||
DC Output Frequency & Time Weighting |
Follows SLM Settings: A, C, or Z and S, F, or I |
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Power Supply |
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Batteries |
4-AA (LR6) NiMH, 1.5 V Lithium or Alkaline cells (supplied with 2500 mAh NiMH) |
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External Power (5 V from USB) |
USB Mini-B connector to | |||
* USB interface from computer |
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* PSA029 AC to DC power adaptor |
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External Power |
I/O connector: 10 to 25 VDC (Use cable CBL140) |
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Operating Time (with power save options) |
> 18 hours (1.5 V Lithium batteries) > 8 hours (Alkaline or NiMH batteries) | |||
Power Consumption with PRM831 |
1.1 W (backlight off, running) |
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≤ 2 W (with DVX012) |
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5 W (maximum) |
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Memory Retention |
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Data Memory |
Non-volatile flash memory, backup performed every minute |
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Real-time Clock |
≥ 1 year with batteries removed | |||
Broadband Noise Levels |
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Self-generated Electrical Noise |
0 dB Gain | 20 dB Gain | ||
Weighting | Typical (dB) | Max (dB) | Typical (dB) |
Max (dB) |
A |
10 | 12 | 6 | 9 |
C | 13 | 16 | 12 |
15 |
Z |
22 | 25 | 22 | 25 |
Self-generated Total Noise | 0 dB Gain |
20 dB Gain |
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Weighting |
Typical (dB) | Max (dB) | Typical (dB) | Max (dB) |
A | 16 | 19 | 16 |
17 |
C |
17 | 20 | 16 | 19 |
Z | 23 | 26 | 23 |
26 |
Note: Combination of the electronic noise and the thermal noise of the 377B02 microphone at 68 °F (20 °C) measured in a sealed and vibration isolated cavity with an averaging time of 60 seconds. Electronic noise of the instrument with an ADP090 (12 pF) in place of the microphone highest anticipated self-generated noise. |
III. Video
***Watch more videos of the device at: Gmga Measuring YoutubeNo comments yet
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