Larson Davis SoundAdvisor 831C Reference Manual page 63

5.2.2 Calibration Settings
FIGURE 5-2 Calibration Settings
Select the
microphone that is
installed on your
meter
The calibrator used
may have different
settings and if so, can
be edited manually
and saved.
5.2.3 Calibration History
FIGURE 5-3 Calibration History
For every instance of
calibration a log entry
is made
The difference between
the level measured during
the calibration and the
level of the previous
calibration is the Delta dB
SoundAdvisor Model 831C
automatically in the SoundAdvisor with the following preamplifiers
and their commonly paired microphones:
• PRM831
• PRM2103
• 426A12
• ICP with ADP074
When a calibration has been performed using any of preamplifiers
listed above, that calibration information is saved for that preamplifier.
If the preamplifier is switched out and replaced with a different type of
preamplifier, then the calibration information already saved for that
new preamplifier type is used. As long as the same microphone is being
used with that preamplifier, the calibration should be correct.
Calibration Displays
Sensitivity data is
prepopulated based on
your microphone. The
actual value is
calculated when the
831C is calibrated.
If the microphone type
is not found, or in
special cases, select
Other and manually
enter sensitivity.
The sensitivity is in
dB re 1 V/Pa
5-3