The Larson Davis 831C SoundAdvisor Sound Level Meter, the most recent platform from LD, provides a powerful, single channel system for a wide variety of tasks, including Environmental Noise, Workplace Noise Safety, and Product Noise Studies.
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Noise Measurement Services are located in Brisbane and service Australia for sales and hire of Larson Davis equipment. We have extensive experience in the field of acoustics, and are here to help you select the best equipment for your job. | ||
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We provide a complimentary Continuing Professional Development module with all instrument purchases. The module is provided by Acoustar, a Registered Training Organisation that specialises in noise training. The module awards 10 CPD points to the participant. Additional CPD and formal noise training is also available. | ||
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The team at NMS have been using Larson Davis equipment for over a decade, and are always at the end of the line if you need help with your instrument. We can also provide remote assistance via Teamviewer. | ||
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We understand that 'time is money' and having your instrument out of action for months during repair or calibration is not acceptible. For instruments purchased at NMS, we will provide rental equipment for the duration of your repair or calibration with the rental fees capped at 10 days. (Subject to rental equipment availability). | ||
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Larson Davis offer several trade-in and upgrade deals which we are more than happy to honour. We will even go a step further and offer up to 10% off the price of your new instrument when you trade-in virtually comparable product; any brand, working or not! | ||
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We are authorised repairers of Larson Davis equipment and can perform many repairs in Australia without having to send your equipment overseas. All repairs are undertaken by an experienced technician using genuine parts. We can also arrange NATA calibration for your instruments at a Brisbane calibration laboratory. |
Features | |
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Hardware | 2GB Internal memory standard, expandable via USB memory stick |
120dB Dynamic Range (20 - 140 dB in standard range) | |
Simultaneous A, C and Z Frequency Weighting | |
Slow, Fast and Impulse Detection | |
Over 50 acoustic parameters available to log simultaneously | |
Microphone extension cabling supported to 61 m/200 ft | |
Backlit "Quiet Touch" keypad | |
Backlit LCD color display with full navigation, even while collecting data | |
Easy, one-handed operation | |
Over 18 hours of operation using 4 AA lithium batteries | |
Versatile options include built in digital correction between freefield and random incidence mics | |
Works with any standard 0V prepolarized condenser microphone | |
Connectivity | Cellular, WiFi, or wired networking |
Remote access to download data, update settings, and more | |
USB 2.0 connections including auxiliary port for GPS, USB storage, modem and more | |
Useability | User selectable multi-parameter Data Logging (as fast as 2.5ms) |
Measurement History allows longer term parameters to be stored simultaneously with Data Logging (e.g., Ln and histogram tables) | |
Exceedance History with programmable length and triggers | |
Multiple setup configurations can be stored on each meter | |
G4 Software allows for easy meter setup and data download | |
Real Time 1/1 & 1/3 Octave Frequency Analysis (*) | |
Advanced .wav sound recording for sound identification or post-processing (*) | |
Dynamic Triggering of .wav recording based on varying background level (*) | |
Accelerometer connectivity/ICP® power for vibration measurements with adaptor (*) | |
(*) Indicates an available option | |
Onboard Storage | 100 million point Leq Time History (0.1 dB resolution) |
30 million 1/1 octave spectra | |
12 million 1/3 octave spectra | |
2 million full parameter Time Histories (over 40 sound metrics plus 1/1 and 1/3 Leq, SPL, min and max) | |
400,000 Standard Measurement Histories (including 1/1, 1/3 octave Leq, max, min, and Ln tables) | |
330,000 Full Measurement Histories (includes standard plus weather, GPS data, and Spectral Ln tables) | |
Standards Met | 100 million point Leq Time History (0.1 dB resolution) |
Standards Met | |
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ANSI | S1.4-2014 Class 1 and S1.43-1997 Type 1 |
S1.11-2014 Class 1, all filters ([)Octave Filter Standards, Option 831C-OB3) | |
IEC | 61672-1 Ed. 2.0 (2013) Class 1, Group X |
60651 Ed 1.2 (2001) plus Amendment 1 (1993-02) and Amendment 2 (2000-10) Type 1, Group X | |
60804 (2000-10) Type 1, Group X | |
61260 Ed. 2.0 (2014) Class 1, all filters [Octave Filter Standards, Option 831C-OB3] | |
61010-1 Ed. 3.0 (2010-06) [Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use] | |
61326-1 Ed. 2.0 (2012-07) and 61672-1 Ed. 2.0 (2013-09) [EMC Immunity and Emission] | |
OTHER | DIN 45657 |
2006/95/EC Low Voltage Safety Directive | |
2004/08/EC EMC Directive | |
FCC Title 47 CRF Part 15, Class B |
Training Partner |
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Downloads |
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831C User Manual |
SoundAdvisor Brochure |
Outdoor Monitoring Brochure |
Related Pages |
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Training Videos |
Sound Meter Selection Guide |
Outdoor Noise Monitor Kits |
831C Ordering Information |
Links |
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Acoustar Noise Training |
Larson Davis Page |
G4 Ld Utility Software |