Larson Davis 824 Sound Level Meter Overview

Please click below to view:

• 824 User Manual

Key 824 Hardware Features Include:

• 2MB internal memory allows for large data files
• 105dB+ Dynamic Range (< 25 to > 140dBA in standard range)
• Low system noise floor: < 16dBA typical in ISM mode (377B41 mic)
• Easy, one-handed operation
• 4 Hours of Operation using 3 AA Batteries
• Works with any standard 200V or 0V condenser microphone: choice of microphone available
• Microphone extension cabling supported to 150m/500ft
• Backlit keypad
• Backlit LCD display with full navigation, even while collecting data

Useability:

• RMS, Peak A, C and Z Frequency Weighting
• RMS Slow, Fast and Impulse Detection
• Building Acoustics: RT60, NCB and RC calculations (*)
• Multiple setup configurations can be stored on each meter
• Outdoor kits and options available for unattended monitoring
• 824 Util Software allows meter setup and data download
• Real Time 1/1 & 1/3 Octave Frequency Analysis (*)
• FFT real time analysis, to 400 lines (*)
• Accelerometer connectivity & ICP® power for vibration measurements (*)
• Audiometry firmware & additional audiometer test hardware available (*)

(*) Indicates an available option

Onboard Storage Capabilities Offer:

• 2 million point single parameter Time History (e.g., LAeq at 1.0 dB resolution)
• 1 million point single parameter Time History (e.g., LAeq at 0.1 dB resolution)
• 70,000 RTA 1/1 octave spectra
• 60,000 LOG intervals without Ln data
• 35,000 LOG intervals with Ln data
• 28,000 point 1/3 octave SSA Leq Time History or RTA 1/3 octave spectra
• 20,000 intervals with 1/3 octave Leq spectrum
• 12,300 SSA intervals with Leq and Max 1/3 octave spectra
• 2,400 FFT 400-line snapshots

Standards Met: