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Chapter 5 To Trigger the Oscilloscope RIGOL
MSO7000/DS7000 User Guide 5-3
Trigger LEVEL/Threshold Level
The adjustment of the trigger level/threshold level is related to the type of the trigger
source.
âš« When the trigger source is selected from CH1 to CH4, rotate the Trigger
LEVEL knob to adjust 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. You can modify the level by rotating
the Trigger
LEVEL knob. 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, rotate the Trigger LEVEL knob to adjust
the trigger level. 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.
âš« When the trigger source is selected from D0 to D15, rotate the Trigger
LEVEL knob to adjust the threshold level. The current threshold level value is
displayed at the upper-right corner of the screen. In addition, you can also press
LA to enter the LA logic analysis setting menu. Then set the threshold level of
the digital channel in the sub-menu threshold setting. For the setting method,
refer to "To Set the Threshold".
You can also enable the touch screen function to adjust the trigger
level/threshold level. Two methods are available for you:
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