Larson Davis SoundAdvisor 831C Sound Level Meter Overview

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.

Please use the navigation below and at left to view:

• SoundAdvisor Model 831C Operation Manual

Key 831C Hardware Features Include:

• 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 Capabilities Offer: 

• 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: