Larson Davis SoundAdvisor 831C Reference Manual page 180

C minus A
Impulsivity
Location
A.3.6 Measurement Control Specifications
Multiple control modes provide for manual and
automated measurements
Manual: Manually control measurements-- RUN,
PAUSE, RESUME, STOP, STORE
Timed Stop: Start manually and runs for set run time (1
second to 99 hours)
Stop When Stable: Start manually and runs until levels
are stable
A.3.7 Measurement Status
A.3.8 Back–Erase
SoundAdvisor Model 831C
Mathematical subtraction of C and A-weighted equivalent levels
Linear Exponential
L - L L
Aeq aeq AƬeq
Mathematical subtraction of impulse and linear equivalent levels
Linear Exponential
L - L
AIeq Aeq
GPS (internal or external GPS, records last fix of measurement):
• Latitude: dg m.m
• Longitude: dg m.m
• Elevation: m or feet
• Time Acquired: h:m:s
Measurement status is indicated on the display and with lights below the Stop/
7
Store button and Play/Pause button
Stopped, Run, Paused, Stored, and Standby.
Icons on display indicate Overload, battery state, and memory status.
Erases the previous 5 or 10 seconds from a measurement. See
Measurement and Using Back Erase on page 71
Units
- L
dB
aƬeq
Units
dB
Continuous: Start manually or at power on and runs
without interruption, Daily Auto-Store available,
special restart after low battery features enabled
Single Block Timer: Runs from a set date and time to
another date and time
Daily Timer: Runs for up to three time blocks per day
qualified by a start date and an end date
9
. Statuses include: Stopped Reset,
.
Pausing the
A-16