User Manual
2.  Use the “HORIZONTAL POSITION” knob to adjust the horizontal position of the signal in the waveform 
window. The “HORIZONTAL POSITION” knob is used to control the triggering displacement of the signal 
or for other special applications. If it is applied to triggering the displacement, it can be observed that the 
waveform moves horizontally with the knob when you rotate the “HORIZONTAL POSITION” knob. 
Triggering displacement back to 0 shortcut key 
Turn  the  HORIZONTAL  POSITION  knob  to  change  the  horizontal  position  of  channel  and  press  the 
HORIZONTAL POSITION knob to set the triggering displacement back to 0 as a shortcut key. 
3.  With the “HORIZ MENU” button, you can do the Window Setting and the Window Expansion. 
10. Introduction to the Trigger System 
Shown as Fig. 13, there are a knob and three buttons in the “TRIGGER CONTROLS”. The following practices 
will direct you to be familiar with the setting of the trigger system gradually. 
Fig. 13 Trigger Control Zone 
1.  Press the “Trigger Menu” button and call out the trigger menu. With the operations of the menu selection 
buttons, the trigger setting can be changed. 
2.  Use the “TRIG LEVEL” knob to change the trigger level setting. 
With the rotation of the “TRIG LEVEL” knob, it can found that the trigger indicator in the screen will move 
up and down with the rotation of the knob. With the movement of the trigger indicator, it can be observed 
that the trigger level value displayed in the screen changes. 
PS: Turning the TRIG LEVEL knob can change trigger level value and it is also the hotkey to set trigger 
level back to 0. 
3.  Press  the button “50%” to set the trigger level as the vertical mid point values of the amplitude of  the 
trigger signal. 
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