Brüel & Kjær Vibro VIBROTEST 60, Техническая документация инструкция

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Introduction VIBROTEST 60
Page 26 of 168 C102 853.002 © VTEST60E July 2013 4.46ff
Zooming the Y-axis
The softkey shows which zoom function will be currently
active !
Using the cursor buttons , the Y-axis can be zoomed. This
alters the scaling of the Y-axis.
Y-axis without zoom Y-axis with zoom
The full scale value of the Y-axis is automatically determined,
corresponding to the largest amplitude, in the ranges 1, 2, 5 or
the power of ten thereof. Starting from the initial display the full
scale range can be reduced in predefined steps.
With a linear scaling of the Y-axis the amplitude resolution can
be increased in which the display range is sequentially changed
in steps of 1 - 2 – 5. Individual lines in the display are cut off
when their amplitudes are greater than the currently selected
full-scale value. The numeric display of frequency and
amplitude are not influenced by the lines being cut off.
If the Y-axis is scaled logarithmically, the display range can be
extended, also in steps, by 1 decade in the direction of smaller
amplitudes. A maximum of 10 further decades can be
displayed. The full scale value is thereby retained.