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Chapter 5 To Trigger the Oscilloscope RIGOL
DS8000-R User Guide 5-3
Trigger Level
The adjustment of the trigger level is related to the type of the trigger source.
âš« When the trigger source is selected from CH1 to CH4, click on the trigger setting
label
at the right-upper corner of the screen. Then, in the
"Trigger Setting" window, input the trigger level with the pop-up numeric
keypad into the "Level" field. You can also click the Up and Down arrow at the
right of the "Level" field to increase or decrease the trigger level. During the
adjustment, a trigger level line (the color of the trigger level line should be
consistent with that of the channel color) and a trigger label "
" are displayed
on the screen, and they move up and down with the variation of the trigger level.
When you stopping modifying the trigger level, the trigger level line disappears
in about 2 s. The current trigger level value is displayed at the upper-right corner
of the screen.
Note: In Runt Trigger, Slope Trigger, and Window trigger, you need to set the
upper and lower limits of the trigger level. In the trigger menu, you can set the
specified trigger level. The difference between the current upper limit and lower
limit of the trigger level is displayed at the upper-right side of the screen. Two
trigger level labels (
and ) are displayed at the left side of the screen.
Meanwhile, the real-time trigger level information is displayed at the lower-left
side of the screen, as shown in the figure below. H indicates the upper limit of
the trigger level, L indicates the lower limit of the trigger level, and â–³ indicates
the deviation of the trigger level.
âš« When the trigger source is EXT, you can also set the trigger level in the "Trigger"
menu. The current trigger level value is displayed at the upper-right corner of
the screen.
Note: For this trigger source, only the variation of the trigger level value is
displayed on the screen during the adjustment of the trigger level, without
displaying the trigger level lines on the screen.
âš« When the trigger source is AC Line, there is no trigger level.
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