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4.Advanced User Guidebook
24
Main Window
Time base of
Zoom window
Selected portion
Horizontal position of
Zoom window
Zoom Window
In normal mode, the Horizontal Position and Horizontal Scale knobs are used to
adjust the horizontal position and time base of the Main window.
In wave zoom mode, the Horizontal Position and Horizontal Scale knobs are used
to adjust the horizontal position and time base of the Zoom window.
How to Set the Trigger System
Trigger determines when DSO starts to acquire data and display waveform. Once
trigger is set correctly, it can convert the unstable display to meaningful waveform.
When DSO starts to acquire data, it will collect enough data to draw waveform on
left of trigger point. DSO continues to acquire data while waiting for trigger
condition to occur. Once it detects a trigger it will acquire enough data continuously
to draw the waveform on right of trigger point.
Trigger control area consists of 1 knob and 2 menu buttons.
Trigger Level: The knob that set the trigger level; push the knob and the level will be
set as the vertical mid point values of the amplitude of the trigger signal.
Force: Force to create a trigger signal and the function is mainly used in "Normal"
and "Single" mode.
Trigger Menu: The button that activates the trigger control menu.
Trigger Control
The oscilloscope provides two trigger types: single trigger, alternate trigger. Each type
of trigger has different sub menus.
Single trigger: Use a trigger level to capture stable waveforms in two channels
simultaneously.
Alternate trigger: Trigger on non-synchronized signals.
The Single Trigger, Alternate Trigger menus are described respectively as follows:
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