9-6 824 Reference Manual 9/29/09
The SLM display is shown below
Although the System 824 measures the sound pressure level
using multiple values of detector and frequency weighting, it
only displays a single value as shown above. For this
parameter, you have a choice of three detectors (averaging
time)
•Slow
•Fast
• Impulse
and you have a choice of three frequency weightings
• A-weight
• C-weight
•Flat
Similarly, you have a choice of three frequency weightings
to be used for the display of the peak level.
Sound Level
Frequency
Weighting
Detector
Secondary Parameter
Secondary Parameter
Value
Secondary Parameter
Frequency Weighting
Measurement Time
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