Svantek Shawcity SVAN 977C, User Manual

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SVAN 977C User Manual
There are two averaging options
( Averaging ): Linear and Exponential . In
case of Exponential averaging, the
Time Constant parameter appears in this
screen. You can select: 100ms , 125ms ,
200ms , 500ms , 1.0s , 2.0s , 5.0s or 10.0s .
►
You can easily get into the FFT screen from
the spectrum view. It is necessary to enter
the function field (
FFT
) with the ▲ / ▼ key
and press <ENTER> .
<ENT>
11.3 C
ONFIGURING
FFT
SPECTRA VIEW
The Display section contains elements for
programming measurement result
presentation and display parameters.
The following positions are used for setting
up the presentation of
FFT results:
Display Modes allowing you to switch on the Spectrum view;
Display Scale allowing you to adjust scales of a spectrum plot and toggle the grid;
Spectrum View allowing you to select spectra to be viewed: instantaneous, averaged, maximum or minimum;
Spectrum Type allowing you to change the spectrum type presented on the display in vibration modes:
acceleration, velocity or displacement. This position appears in the vibration modes.
11.3.1 Presentation of FFT spectra
Spectrum plot view
The Spectrum position in the
Display Modes list becomes available for
the FFT function. It enables/disables the
spectrum plot view.
=>
Spectrum view fields
1. Analyser function
2. Cursor position
3. Value for the cursor position
4. Averaging used
5. Spectrum plot
6. Frequency weighting filter
7. Total value
8. Line frequency for the cursor position
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