SV 277 PRO User Manual
47
that number of measurements automatically or earlier manually.
Note: For monitoring purposes it is recommended to set the Infinite value which is
also a default value of this parameter.
You can define ten statistical noise levels, named from
L01
to
L99
, to
be calculated, displayed and saved in the file as Summary results.
Statistical noise level
Lnn
is a level in dB which was exceeded during
nn
percent of the Integration period. Statistical noise levels are
calculated from histogram, created based on 100ms Leq results (see
Appendix D).
Note: To ensure saving of any results you should enable data logging. Summary
results are saved in the same file with Time history results.
Note: All files with measurement result are automatically named in accordance
with the rule: some prefix (string of letters) and number (string of digits) increased
by one for newly created files. Default prefix is “L” and it can be changed via
+.
If the
Octave 1/1
or
Octave 1/3
function is selected, you can also switch on spectrum
saving (
Save spectrum
button) as a time history with the logger
Step
.
The audio recording function is optional and if not enabled, the
AUDIO RECORDING
tab
will not be visible.
In the
AUDIO RECORDING
tab, you can configure an audio signal recording in a separate
*.wav type file.
There are four parameters of audio recording:
Format
(PCM or Extensible),
Bits per
sample
(16 or 24),
Recording range
(from 21 dB
– 96 dB to 61 dB – 136 dB),
Sampling
frequency (12kHz, 24kHz or 48kHz).
