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falling edge, or either edge). This key is not active when the trigger type is not
set to "Edge".
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increase the trigger level or turn the knob counterclockwise to decrease the
level. Pressing the knob can quickly set the trigger level to the waveform's 50%
peak-to-peak value.
10. Vertical Controls
- Vertical
the selected waveform's vertical position to move the waveform up or down on
the display. Press this knob to reset the vertical position to zero.
- Vertical
of vertical divisions of the graticule in volts/div. Press this knob to toggle
between fine and coarse adjustment of the vertical scale.
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can add reference waveforms in waveform view and compare them with
measured waveforms to identify circuit fault.
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operations include A+B, A-B, A× B, A/B, FFT, etc. You can also set the Math
label.
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select, or disable the corresponding channel, as described below:
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is the slope setup key. Press this key to select the edge type (rising edge,
is the force trigger key. Press this key to force a trigger.
LEVEL is the trigger level/digital threshold knob. Turn the knob clockwise to
POSITION is the vertical position knob. Turn this knob to change
SCALE is the vertical scale knob. Turn this knob to modify the value
is the reference key. Press this key to assess the Ref menu, in which you
is the Math key. Press this key to access the Math menu. Math
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is the channel key. Press the key to enable (display),
Quick Start
HDO4000 User Guide
23
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