Svantek Shawcity SVAN 977C, User Manual

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105 SVAN 977C User Manual
You can shift the Y-axis in the spectrum
view with the
<Shift> and
▲ / ▼
keys
pressed together.
<Sh/
▼
>
You can change the cursor position with the
◄ / ► key. You can jump to the first or last
spectrum line with
<Shift>
.and ◄ / ► keys
pressed together.
The frequency and appropriate value are
presented in the line below the plot.
►
...
You can zoom in/out the frequency scale at
the cursor position with the
◄ / ► key
pressed together with <Shift> .
<Sh/
►
>
11.3.2 Setting scale of spectrum plot
– Display Scale
The Display Scale screen allows you to
define the result units (absolute or
logarithmic), adjust scale of plots and toggle
the grid.
<ENT>
Scale of results presentation
The Scale parameter defines results units:
linear ( Lin
– m/s
2
, m/s etc.) or logarithmic
( Log - dB).
For sound measurements, the Scale
position is not active. All results are always
presented in dB.
The Log option means that the graphical
presentation is given in the logarithmic scale
and the measurement results are expressed
in decibels (the result is related to the values
set in the
Reference Levels screen ( path:
<Menu> / Auxiliary Setup /
Reference Levels ).
=>
=>
Note: In Vibration modes, results can be presented in the Logarithmic (dB) or Linear (for example,
m/s
2
) units. It depends on the Scale parameter value. For example, 10 m/s
2
can be presented also
as 140 dB.