Svantek Shawcity SVAN 977C, User Manual

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SVAN 977C User Manual
10.2 C
ONFIGURING
1/1-
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 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 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 parameters of 1/1- or 1/3-octave analysis
– 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).
<ENT>