Svantek SVAN 979, Руководство пользователя

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101
SVAN 979 User Manual
10.2.1
General settings for 1/1-octave
– 1/12-octave analysis – General Settings
Averaging of results for each spectrum band is performed for the Integration
Period and is repeated the Repetition Cycles times. 1/1-octave
– 1/12-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-octave - 1/12-octave analysis
– Range
The input range for the 1/1 Octave -
1/12 Octave functions can be selected in
the Range screen: Low or High .
Depending on the settings of the Scale
parameter ( path: <Menu> / Display /
Display Scale ) the range for vibration signal
can be presented in absolute or logarithmic
units (dB).
►
10.2.3
Logging of 1/1-octave - 1/12-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
– 1/12-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
– 1/12-octave spectra will be then
logged with the Integration Period step.
The instrument allows additional logging of 1/1-octave
– 1/12-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-octave - 1/12-octave analysis
– Spectrum
For active 1/1 Octave - 1/12 Octave
functions a context position ( Spectrum )
appears in the Measurement list ( path:
<Menu> / Measurement / Spectrum) . In the
Spectrum screen, you can select the band,
the pre-weighting broadband frequency filter
(only for sound measurements) and the
LEQ/RMS detector.
<ENT>
Selection of the band
The Band parameter defines the band of 1/1-octave - 1/12-octave analysis.