ScopeMeter Test Tool Tutorial
8 - 11
Connection
Connect the red scope probe from INPUT A to TP3 on the
Demo Board.
Making the Measurement
1.
Reset the ScopeMeter test tool (
+
).
2.
Press
to
select
the
SCOPE
mode.
3.
Press .
The waveform appears to have a number of levels. Adjust
the time base and amplitude to give a display as shown in
Figure 8-7:
4.
Use
to move the ground level to the third division
from the bottom. The ground icon ( ) on the right side
of the display identifies the ground level.
5.
Press
to increase amplitude if required.
6.
Press
to set the time base to 10 ms/DIV if
required.
The waveform in Figure 8-7 has five distinct levels. The
trigger level chosen by Auto Set is the best position of the
waveform. Because this waveform has pulses on different
levels, triggering occurs on the largest pulse. This results in
a stable display. The waveform can now be clearly seen as
a repetitive block of four different pulses.
Figure 8-7 Stable Scope Display
Содержание 105 Series II
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