Larson Davis 824 User Manual

9/29/09 System 824 Views 5-65
Background Leq - The background Leq is the hourly Leq
minus the exceedance Leq.
Hour indicator - The hour indicator shows which hour of the
day is being displayed. A “p” following the Hour indicator
means that the measurement was not for a full hour.
Hourly Leq graph - This graph shows the Leq value for each
hour. Use the
randlarrow keys to move the cursor to
view the Leq, background Leq and exceedance Leq for each
hour.
Metrics
The uand darrow keys can be
used to cycle between the Metrics,
PassBy, and Wind / Tach views.
The Metrics View has two displays which can be accessed
by simply selecting Metrics with the
c Check key from
within the main View menu then cycling through the views
with the
randlarrow keys until the desired display
appears.
Metrics-a Display The Metrics-a display consists of five major components:
• Display label
•L
eq
Reading
• DNL Reading
• CNEL Reading
• Elapsed Time
The Metrics-a display is shown below:

Larson Davis 824 Specifications

General

Brand	Larson Davis
Model	824
Category	Measuring Instruments
Language	English