Fnirsi -1C15 Quick Start Manual page 9

"50%" button, the oscilloscope pops up the menu box
as shown below:
1
The first is all, followed by the vertical zero offset,
the trigger horizontal position, and the trigger level.
You can switch the four options by moving the joystick
up / down / left / right, and click the
keypad to confirm. Then the oscilloscope will perform
the operation according to the corresponding item.
6.Single (single trigger): Single trigger means that
after pressing the button, the oscilloscope samples a
frame of waveform and then stops. That is, only one
frame of waveform is acquired per click. It is important
to note that there must be a trigger for this sampling.
If there is no trigger, the oscilloscope will display
in the upper left corner, and this sampling will not be
completed until a waveform trigger occurs.The key
"OK"
07
button in the
"wait"