10.2 CONFIGURING THE 1/1 OCTAVE OR 1/3 OCTAVE ANALYSER
10.2.1 General measurement settings for 1/1 or 1/3 octave analysis – General Settings
Execution of the 1/1 octave or 1/3 octave analysis depends on a certain set of parameters, configured in the
Measurement section.
Averaging of Leq/RMS results for each spectrum band is performed for the
Integration Period and is repeated the Repetition Cycles times. 1/1 octave
and 1/3 octave spectra are always saved as Summary Results.
The Integration Period and Repetition Cycles parameters are defined in the
General Settings list.
10.2.2 Selecting the measurement range for 1/1 or 1/3 octave analysis – Range
The input range for the 1/1 Octave or 1/3 Octave functions can be selected in the Range screen: Low or High.
The values of ranges in sound modes depend on the settings in the Compensation Filer screen (path: <Menu>
/ Measurement / Compensation Filter) and in both sound and vibration modes – on the calibration factor (see
Chapter - 4.6).
10.2.3 Logging of 1/1 or 1/3 octave spectra – Logging
Spectra can be logged in a logger file with two steps: Integration Period step
and/or Logger Step.
For logging 1/1 octave and 1/3 octave spectra, the Logger position must be
enabled in the Logger Setup screen (path: <Menu> / Measurement / Logging
/ Logger Setup).
If you wish to save spectra together with Summary results, you must enable
the Summary Results position. 1/1 octave and 1/3 octave spectra will be then
logged with the Integration Period step.
The instrument allows additional logging of 1/1 octave and 1/3 octave spectra
in a logger file with the Logger Step.
For this, you should enable logging of spectra switching on the Spectrum
position in the Logger Results screen (path: <Menu> / Measurement / Logging
/ Logger Results).
10.2.4 Setting 1/1 or 1/3 octave analysis parameters – Spectrum
For active 1/1 Octave and 1/3 Octave
functions a context position (Spectrum)
appears in the Measurement list (path:
<Menu> / Measurement / Spectrum). In the
Spectrum screen, you can select the band
and the pre-weighting broadband frequency
filter (only for sound measurements).
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