Larson Davis System 824, Training Manual

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824 Training Manual
ii
L
LCD Screen Backlight ............................ 1-3
LCD Screen Contrast .............................. 1-3
Ldn .......................................................... 2-17
Level versus Time Graph ....................... 1-8
LOG Instrument ...................................... 2-4
Logging ................................................... 1-4
lowest instantaneous SPL ....................... 1-12
M
main menu keys
...................................... 1-5
Metrics
.................................................... 2-18
minimum duration
.................................. 2-15
O
On/Off
..................................................... 1-2
P
PassBy Exceedance
................................ 2-15
Power Key Functions
............................. 1-2
Powering on the 824
............................... 1-2
Printing a Report
..................................... 1-23
Product noise
.......................................... 2-3
push-off
................................................... 1-7
push-on
................................................... 1-7
R
Railroad noise ......................................... 2-2
Ready ...................................................... 3-8
Real-time analyzer .................................. 1-4
Recalling Data ........................................ 1-18
Recreational noise .................................. 2-3
Reports .................................................... 1-23
Resetting Data ........................................ 1-17
Road traffic ............................................. 2-1
RT60 Defined ......................................... 3-1
RTA Data ................................................ 1-18
S
screen contrast
........................................ 1-3
Short Leq
................................................ 1-10
simple measurement
............................... 1-13
SLM Data
............................................... 1-17
slope
....................................................... 3-2
Sound spectrum analyzer
....................... 1-4
SSA Measurements
................................ 1-8
Storing Data
............................................ 1-18
Summary Report
.................................... 1-23
T
Taking a Measurement
........................... 1-17
Time History
.......................................... 1-8
,
2-4
,
2-15
Time history period
................................ 1-8
time history period
................................. 2-4
Time History Report
............................... 1-25
Time synchronization
............................. 2-7
Tonality analyzer
.................................... 1-4
Translating the Data
............................... 1-22
Trigger and Arm Levels
......................... 3-10
Trigger Menu
.......................................... 3-9
Triggered
................................................ 3-8
Triggering
............................................... 2-12
,
3-7
V
Viewing Data
.......................................... 1-17
Viewing Instrument IDs
......................... 1-4
W
What you will Learn ............................... 1-1