Owon XDS4000 Series User Manual page 45

Slope Trigger: The oscilloscope begins to trigger according to the signal rising
or falling speed.
Runt Trigger: Trigger pulses that pass through one trigger level but fail to
pass through the other trigger level.
Windows Trigger: Provide a high trigger level and low trigger level, the
oscilloscope triggers when the input signal passes through the
high trigger level or the low trigger level.
Timeout Trigger: The oscilloscope triggers when the time interval from when
the rising edge (or the falling edge) passes through the trigger
level to when the neighbouring falling edge (or the rising edge)
passes through the trigger level is greater than the timeout time
set.
Nth Edge Trigger: The oscilloscope triggers on the Nth edge that appears on
the specified idle time.
The eight trigger modes in Single Trigger are described respectively as
follows:
1. Edge Trigger
An edge trigger occurs on trigger level value of the specified edge of input
signal. Select Edge trigger mode to trigger on rising edge or falling edge.
In Edge Trigger mode, the trigger setting information is displayed on bottom
right of the screen, for example,
type is edge, trigger source is CH1, coupling is DC, and trigger level is 0.00mV.
Edge menu list:
Menu Settings
Single Mode Edge
CH1
CH2
CH3
Source CH4
AC Line
EXT
EXT/5
AC
DC
HF
Coupling
LF
Noise Reject
ON
4.Advanced User Guidebook
Instruction
Set vertical channel trigger type as edge trigger.
Channel 1 as trigger signal.
Channel 2 as trigger signal.
Channel 3 as trigger signal.
Channel 4 as trigger signal.
AC power line as trigger signal.
External trigger as trigger signal
1/5 of the external trigger signal as trigger signal.
Block the direct current component.
Allow all component pass.
Block the high-frequency signal, only
low-frequency component pass.
Block the low-frequency signal, only
high-frequency component pass.
Turn ON/OFF Noise Reject.
（Range 0.3div to10div）
OFF
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, indicates that trigger