Larson Davis SoundAdvisor 831C Reference Manual page 50

FIGURE 4-24 Overall Tab, Weather Page
4.1.4 Understanding the Session Log Tab
FIGURE 4-25 Session Log Tab
1.
Table 4.4 831C Meter Actions that Create Session Log Items
Measurement run
SoundAdvisor Model 831C
1.
2.
2.
Key press
1.
"Windy" indicates the wind speed is 36.8% faster than the
Threshold level you entered in the Setup.
2.
This figure reflects the Compass display. The red polygon
on the compass indicates the relative duration and wind
direction.
To view additional weather-related data,
TAKE NOTE
download and open the data file in G4. Locate the event
History data, and look for the following columns:
• Wind Speed @ Lmax (mi/h, sampled at 4 times/second)
• Wind Dir @ Lmax (compass direction or degrees)
• Gust Speed (samples the running average/1 min, then
reports an average rate over 10 mins.)
• Gust Dir (Compass direction)
• Trig Src (Event Trigger Source)
• Trig Level (usually in dB)
• Rain Max Rate (in/hr), Rain Accumulation (in/s)
• Hail Max Rate (in
In G4, weather-related events and their triggers display in the
following columns in the Event Time History data: Gust Speed
(mi/h), Gust Dir (Compass Direction)
On the Session Log tab, the 831C creates a time-stamped
record for every meter action, including Calibrate, Run, Pause,
Resume, Stop, Voice Message, and Sound Recording, and
others. When you store a data file or press the Reset button
1
, the session log clears and begins a new log.
1.
For the example shown in Figure 4-25 there was a time sync,
a back-erase; measurement paused then resumed, then a
calibration.
2.
Highlight a log entry to see the meter source near the
bottom of the screen.
The source responsible for each logged action is also recorded.
Session Log meter actions include the following:
Measurement stop
Measurement pause
SoundAdvisor 831C Display In SLM Mode
2
/h), Hail Accumulation (in/s)
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