Larson Davis 824 User Manual

9/29/09 System 824 Views 5-33
Time weighted average - This display shows the Time
Weighted Average (TWA) measured in dB.
Sound exposure level - This display shows the Sound
Exposure Level (SEL) measured in dB.
Elapsed time - The timer display shows the elapsed run
time accumulated since the last overall reset. This is the time
over which the overall TWA is averaged.
Exposure-b Display The Exposure-b display consists of five major components:
• Display label
• Sound exposure
• Sound exposure level
• Time weighted average
• Elapsed Time
The Exposure -b display is shown below:
The following explains each of the display’s components:
Display label - Shows the current display (for example,
“SLM Exposure-b”).
Takt3 and Takt5 are available
options if Takt functionality has been
enabled. (See the Menu Item "About"
on page 3-18).
Sound exposure - Sound Exposure (E) in Pascal squared
hours (Pa
2
H). The Sound Exposure (E) is a function of the
L
eq
and the elapsed time of the overall measurement.
Display label
Sound exposure level
Elasped Time
Time weighted average
Sound exposure

Larson Davis 824 Specifications

General

Brand	Larson Davis
Model	824
Category	Measuring Instruments
Language	English