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Larson Davis System 824 User Manual

Larson Davis System 824
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9/13/00 C-3
NOTE: The 824 does not meet IEC
60604 or ANSI S1.4 specifications when
used with a high sensitivity microphone
(2541 or 2560) and a 20 volt bias. The
bias is changed to 20 volts for high range
measurements in the ISM and LOG
modes, and -10dB or -20dB gain in all
other modes.
System 824 Main Characteristics:
• Type 1 Precision Integrating Sound Level Meter with real-
time 1/3 Octave Filters
• 2MB standard memory
• Large backlit graphic display (64 X 128 pixels)
• Icon-driven graphic user interface
• Soft rubber backlit keys
• Large dynamic range
• RMS Detectors: Slow, Fast, Impulse
• Triple Peak Detectors: A, C, FLat
• Interval History (statistical)
• Time History
• L
n
statistics (L0.01 through L99.9 available)
• Histogram tables
• Direct report printouts to laser printer
• Windows
TM
-based software for setup, control, and high speed
data download and reporting
• Advanced Windows
TM
-based software packages (optional)
provides data archiving/search capabilities, post-measure-
ment analysis features, and advanced sorting and graphics/
report generation tools.
• Multi-tasking processor allows measuring while viewing data,
transferring data, or printing
• Programmable Run/Stop timer for automatic measurements
• AC/DC outputs to recorder
• Field-upgradable firmware: keeps instrument current with the
latest features via ROM disk upgrades
• Two-year limited warranty
General Specifications
Reference level: 114.0 dB SPL
Reference frequency: 1000 Hz
Reference direction: 0° for a free field
microphone and 80°
for a random incidence
microphone
Temperature:
≤
≤ ≤
≤
± 0.5 dB error
between
-10° C and 50°C
Storage temperature: -10°C to 60°C

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Larson Davis System 824 Specifications

General IconGeneral
BrandLarson Davis
ModelSystem 824
CategoryMeasuring Instruments
LanguageEnglish

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