Instructions

4.Advanced User Guidebook
36
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.
Note:
About the gestures for touchscreen, see "Touchscreen Controls " on P16.
How to Set the Trigger/Decoding 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 four trigger types: single trigger, alternate trigger, logic
trigger and bus trigger. Each type of trigger has different sub menus.
Two ways to enter trigger mode: