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114
SVAN 979 User Manual
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 up the 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.
Scaling the vertical axis
The
Dynamics
parameter defines the
dynamic range of the Y-axis scale.
=>
Summary of Contents for SVAN 979
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