DPO6000
，
MPO6000 Series Digital Phosphor Oscilloscope Instruction V1.1
- 37 -
Press
【
Trig Menu
】
on the frontal panel to turn on trigger function menu.
【
Type
】
select
slope
and press V0 to confirm.
【
Data source
】
select
CH1~CH4
to be trigger source.
【
Slope
】
select the desired trigger edge(rising edge or falling edge )
【
Level
】
high/low level setting function,press this softkey again to select low level(V2)or
high level(V1),then rotate trigger level knob to adjust the vertical position of high(low) level
to obtain the desired slope time T.The corresponding displacement information changes in
real time and is displayed in the status bar in the upper right corner of the screen.
【
When
】
select the desired slope condition and press V0 to confirm.
The setting conditions are the same with pulse .
【
Width
】
set the pulse width time
【
8ns~10s
】
.
【
Mode
】
select the acquisition mode(auto
、
normal),press V0 to confirm.
【
Holdoff
】
set the holdoff time.
Trigger level knob
:modify the trigger level value. Trigger symbol moves up and down
according to the rotation of the knob.Rotate the trigger level knob to acquire the stable
trigger.
6.5.5.Overtime Trigger
In timeout trigger, the instrument triggers when the time interval (
△
T) from when the rising
edge (or falling edge) of the input signal passes through the trigger level to when the
neighbouring falling edge (or rising edge) passes through the trigger level is greater than
the timeout time set,as shown in the figure below.
Press
【
Trig Menu
】
on the frontal panel to turn on trigger function menu.
【
Type
】
select
Overtime
,and press V0 to confirm.
【
Data source
】
select
CH1~CH4
or
LA
to be trigger source.
Note
:when use LA to be trigger source,LA must be inserted.
【
Polarity
】
select the positive polarity or negative polarity of trigger.
【
Time
】
set pulse width time
【
8ns~10s
】
.
【
50%
】
set the trigger level as the vertical central point of the peak-peak value of the
trigger signal.Trigger level value is displayed on the top right corner.
【
Mode
】
select the acquisition mode(auto
、
normal),press V0 to confirm.
【
Holdoff
】
set the holdoff time.
Trigger level knob
:analog channel can modify the trigger level value. Trigger symbol
moves up and down according to the rotation of the knob.Rotate the trigger level knob to
acquire the stable trigger.
Digital channel
:can change trigger threshold of the digital channel by setting the threshold
voltage.
6.5.6.Window Trigger
Window trigger provides a high trigger level and a low trigger level. The instrument
triggers when the input signal passes through the high trigger level or the low trigger
level.
