Larson Davis System 824 - Exposure-B Display

11/8/00 System 824 Views 6-33
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 “German” functionality
has been enabled. (See the
“TOOLS” menu 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.
Time weight average
- This display shows the Time
Weighted Average (TWA) measured in dB.
Sound exposure level
- Shows the Sound Exposure Level
(SEL) measured in dB.
Display label
Sound exposure level
Elasped Time
Time weighted average
Sound exposure