Larson Davis 831C-FFT, Reference Manual

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SoundAdvisor Model 831C Creating a Custom Setup File On the Meter 59
FIGURE 6-7
Setup Manager: Control Tab
1.
The Sound Advisor 831C has 6 Run Modes to control
the meter during a measurement. For more information
on each run mode, see
6.2.4 Choosing a Run Mode
.
Step 8.
If enabled on your meter, use the right softkey (
//*
) to navigate to the
Time History tab. For information on choosing these settings, see Module 16
Using Time History .
Step 9.
Use the
right softkey
(
//*
) to navigate to the
Exceedance Triggers
tab as
shown in Figure 6-8 .
FIGURE 6-8 Setup Manager: Exceedance Triggers Tab
1.
SPL
Trigger Levels: When the measured SPL (Slow, Fast, or
Impulse) is greater than the trigger level you set here, the
exceedance begins. The measured SPL is defined by the current
weighting and detector.
2.
Peak
Trigger Level: Set 3 peak levels independent of the
SPL triggers. Because the peak is associated with
Fast
detec-
tion time, these triggers can identify impulsive noises (e.g., gun
shots), which would not normally be measured.
1.
1.
2.