About The Big Digit Sound Page (Live Tab; About The Octave Band Analyzer Page (Live - Larson Davis SoundAdvisor 831C Reference Manual

4.1.2 About the Big Digit Sound Page (Live Tab Page 2)
FIGURE 4-2 Live Tab: Big Digit Display Page
1.
4.
4.1.3 About the Octave Band Analyzer Page (Live Page 3)
FIGURE 4-3 Live Tab: 1/1 Octave Band Page
1.
2.
3.
SoundAdvisor Model 831C
The big digit display is best for observing the instantaneous sound level and
for watching when the measured sound exceeds a defined trigger level.
This feature requires the 831C-OB3 firmware option.
TAKE NOTE
Four pages on the Live tab relate to which octave band setting you choose in
the measurement setup. The height of each band in the graph is the
amplitude of sound for that frequency.
Understanding the Live Tab
1.
The current value on the Big Digit display
corresponds to the "Any Level" value you select. To
change this metric, highlight it, press
a new option.
2.
The peak exceedance value displays in gray if it is
under range.
3.
Current date and time on the meter displays near
2.
the bottom.
4.
This is the Exceedance Trigger level you selected
3.
in the measurement setup.
1.
Each band is one full octave that increases
from left to right.
4.
2.
Displays the frequency weighting and detector.
3.
Displays the frequency band level.
5.
4.
Use the LEFT and RIGHT(
buttons to highlight the desired band and the
numerical values below will reflect the information
at that octave.
5.
The purple band on the far right represents an
average sum of all the bands.
5
, and select
46
) navigation
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