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Basic Operation
DSO8000E Series HandHeld Oscilloscope User Manual 16
5.2 Horizontal Controls
Use the horizontal controls to change the horizontal scale and position of waveforms. The
horizontal position readout shows the time represented by the center of the screen, using the
trigger time as zero. When you change the horizontal scale, the waveform will expand or contract
to the screen center. The readout near the upper right of the screen shows the current horizontal
position in second. M represents ‘Main Time Base’, and W indicates ‘Window Time Base’. The
oscilloscope also has an arrow icon at the top of the graticule to indicate the horizontal position.
1. HORIZONTAL POSITION BAR: Used to control the trigger position against the screen center.
2. Each option in HORI MENU is described as follows.
Options
Settings
Comments
Window Ctrl
Double Win
Single Win
Set the Current window mode to single or double window.
Window Sel
Major Win
Minor Win
Selects the major or minor window in dual-window mode.
The window is highlighted once selected. Press this option
button in single-window mode to enter the daul-window
mode.
HoldOff
Select this menu and click the up and down Arrow keys to
adjust the trigger holdoff time within the range of
100ns-10s.
Reset
Recover the horizontal trigger postion to the middle screen.
Pre Mark
This function is usable only in dual-window mode. It sets
marks at some waveform record locations that users are
interested in, and searches for these marks by right and left
arrows. Then it positions the window to this mark for further
observation.
Next Mark
This function is usable only in dual-window mode. It sets
marks at some waveform record locations that users are
interested in, and searches for these marks by right and left
arrows. Then it positions the window to this mark for further
observation.
Set/Clear
Set or Clear the current Mark.
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