Tektronix, Inc. P6240, Руководство пользователя

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Setting Up for Examples
TLS 216 User Manual
1–9
3. Press the button to the right of the OK Confirm Factory Init side menu
item.
NOTE . This manual uses the following notation to represent the sequence of
selections you made in steps 1, 2 and 3: Press save/recall SETUP
➞
Recall
Factory Setup (main)
➞
OK Confirm Factory Init (side).
Note that a clock icon appears on screen. The logic scope displays this icon
when performing operations that take longer than several seconds.
4. Press SET LEVEL TO 50% to be sure the logic scope triggers on the input
signal. (See Figure 1-6.)
SET LEVEL TO 50% Button
Figure 1-6: Trigger Controls
Examine the Display Elements
Read the following information to become familiar with the logic scope display
before doing the examples.
Figure 1-7 shows the display that results from the instrument reset. Note the
following characteristics.
The logic scope always displays a single group (Group 1) which contains only
one channel (Channel 1) after a reset.
The trigger threshold bar shows that the logic scope triggered the waveform at a
threshold level near 50% of its amplitude (from step 4).
The trigger position indicator shows that the trigger position of the waveform is
located at the horizontal center of the graticule.