SoundAdvisor Model 831C
A-16
C minus A
Mathematical subtraction of C and A-weighted equivalent levels
Impulsivity
Mathematical subtraction of impulse and linear equivalent levels
Location
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
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
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
A.3.7 Measurement Status
Measurement status is indicated on the display and with lights below the
Stop/
Store button
7
and
Play/Pause button
9
. Statuses include: Stopped Reset,
Stopped, Run, Paused, Stored, and Standby.
Icons on display indicate Overload, battery state, and memory status.
A.3.8 Back–Erase
Erases the previous 5 or 10 seconds from a measurement. See
Measurement and Using Back Erase on page 71
Linear
Exponential
Units
L
Aeq
- L
aeq
L
A
Ƭ
eq
- L
a
Ƭ
eq
dB
Linear
Exponential
Units
L
AIeq
- L
Aeq
dB
Summary of Contents for 831C-FFT
Page 1: ...Larson Davis SoundAdvisor Model 831C Sound Level Meter Reference Manual...
Page 214: ...SoundAdvisor Model 831C A 50 FIGURE A 47 Model 831C with 377C20 Microphone...
Page 215: ...SoundAdvisor Model 831C A 51 FIGURE A 48 Model 831C with 377C20 Microphone...
Page 216: ...SoundAdvisor Model 831C A 52 FIGURE A 49 Model 831C with 377C20 Microphone...
Page 223: ...SoundAdvisor Model 831C A 59 A 10 Declaration of Conformity...