User’s Manual MSO/UPO2000 Seri es
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(4) Level Setting
Level setting can set low level, high level and high-low level. Press LEVEL knob on trigger control area
to quickly switch the selection.
a. Low level
：
Adjust low level threshold of ramp trigger by using LEVEL knob on trigger control area.
b. High level
：
Adjust high level threshold of ramp trigger by using LEVEL knob on trigger control area.
c. High-low level
：
Adjust high-low level threshold of ramp trigger by using LEVEL knob on trigger control
area.
7.7 Over-Amplitude Pulse Trigger
Trigger level of over-amplitude has a high level and a low level, when the rising edge of the input signal
crosses the high level or the falling edge crosses the low level, the oscilloscope will be triggered, as shown in
Figure 7-5. Over-amplitude pulse trigger menu can set source, coupling mode, trigger mode, over-amplitude
type (rising edge, falling edge, random edge), position (enter, exit, time), trigger setting, level setting, etc.
Figure 7-5
(1)
Over-amplitude Type
Select which edge that the input signal can be triggered. It can select rising edge, falling edge or
random edge. The current slope is displayed in the upper right corner of the screen.
a.
Rising edge
：
It will be generated when
the trigger on the rising edge of the input signal and the
voltage level is higher than the setting high level.
b.
Falling edge
：
It will be generated when the
trigger on the falling edge of the input signal and the
voltage level is lower than the setting low level.
c.
Random edge
：
It will be generated when
the trigger on the rising/falling edge of the input signal
and the voltage level is within the setting level
.
(2)
Trigger Position
Rising edge
Falling edge
Trigger level-high level
Trigger level-low level
