- Model 831 - Sound Level Meter

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Larson Davis - Model 831 - Sound Level Meter

Larson Davis Model 831 Class 1 Sound Level Meter. This versatile instrument, with high definition display, performs the functions of several instruments. It puts the combined features of a precision Class 1 sound level meter, environmental noise analyzer, personal noise dosimeter, and a real-time frequency analyzer in the palm of your hand. The Larson Davis Model 831 is a fifth generation Larson Davis sound level meter, designed for simple single handed operation, yet is fully featured, smart and versatile with an ever expanding firmware platform. The design of the Model 831 was based on countless inputs from our customers. It expands upon the Larson Davis tradition of delivering value, innovation and function in a rugged single-handed expandable package and is backed by our 2-year Factory Warranty, 24-hour application support and accredited factory service/calibration.

Application

  • Class 1 sound measurements to the latest international standards
  • Environmental noise assessment and monitoring
  • Reverberation time measurement and building acoustics
  • Tonality
  • Occupational noise evaluation
  • HPD selection
  • Noise reduction validation
  • Product quality control
  • NVH correlation
  • In-Situ sound power measurements
  • Real-time analysis of sound in 1/1 and 1/3-octave bands
  • Code enforcement

Standard Features

  • IEC 61672-1:2002, ANSI S1.4, ANSI S1.43 Class 1 integrating sound level meter
  • Voice Annotation
  • ANY LEVEL Display
  • User programmable run modes
  • Six user selectable statistics (Ln)
  • Threshold exceedance data
  • Community Noise Calculations (Lden, CNEL)
  • GPS Global Positioning Support
  • Back Erase Functionality
  • Normalized Spectrum
  • User-selectable screen layout and lockable setup protection
  • Remote access and field upgradable
  • Wide variety of non-proprietary powering options including – 4XAA internal batteries, AC, USB and external batteries

Firmware Options

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Larson Davis, a division of PCB Piezotronics
Larson Davis, a division of PCB Piezotronics
3425 Walden Avenue
Depew ,  NY 14043

APPLICATIONS

Noise monitoring for airports

Airports, small and large, use noise and operations monitoring systems to reduce the noise of flight operations in the surrounding community.  Noise monitoring is generally used to evaluate noise abatement programs and to develop aircraft departure and arrival procedures that minimize the impact of aircraft noise based upon altitude, flight path, and time of day.  Noise monitoring is linked with radar tracking so that specific aircraft can be identified when noise limits are exceeded and so...

Noise monitoring for the mining industry

The management of noise from mining operations is recognized as a fundamental responsibility of the mining industry. Implementing a noise management system that includes noise surveys, day and night noise mitigation, and some level of noise monitoring is a primary function that is required to meet environmental impact standards in most locations.

Wind farm noise monitoring

Wind energy is a renewable energy source that is being harnessed globally to reduce our dependence on fossil fuels and the associated impact on our environment. However, the environmental impact of the turbine noise and the blade pass noise is a concern that is carefully monitored and generally regulated. It is very important to be able to acquire accurate acoustical data for analysis, noise impact predictions, and regulatory compliance. Effective noise monitoring is a very valuable tool to...

Noise monitoring for the petrochemical industry

Many industrial operations take place over lengthy time periods and operations often continue 24 hours a day.  By implementing a 24 hour noise monitoring system, with real-time communication and alert notification, a plant can demonstrate to the community and regulatory agencies that they are sensitive to the community and prepared to root-cause and correct any problems that may arise.

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