9/29/09 Performing a Sound Level Measurement 9-5
Editing the Measurement Parameters
NOTE: If you are recalling a
measurement ID which has already been
configured for the measurement you wish
to perform, then you can skip to the next
section.
The design of the System 824 permits the simultaneous
measurement of the following sound level parameters, a
feature we call “Any Data”:
Note: The detector used to create
Leq is a pure integrating true RMS
detector which integrates the energy
over a specific period of time. It may
be as short as 1/32 second, in a time
history which may be as long as 24
hours. As a result, it does not include
decay artifacts of older instruments
that integrate the output of the
SLOW or FAST detectors.
Peak Sound Pressure Level (L
peak
) with A, C and Flat
weighting.
Equivalent Continuous Sound Pressure Level (L
eq
) with
A, C and Flat weighting. A time history record can be
enabled to capture samples at periods as short as 1/8th of a
second.
Leq Peak
Live SPL Lmax Lmin
Detectors Detectors Detectors
Slow Fast Impl Slow Fast Impl Slow Fast Impl
A
99999999999
C
99999999999
Flat
99999999999
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