Trigger
Setting
:
Press the trigger setting key to enter the trigger setting menu.
Trigger
Mode
:
Press the trigger mode key to select automatic, normal or single mode, please refer to the content of
Triggle Mode. The corresponding indication light will be on according to current trigger mode.
Trigger
Coupling
:
Press the trigger coupling key to select DC, AC, high/low frequency suppression, and noise suppression.
For more details, please refer to the section of Trigger Coupling.
5
.
3
Pulse
Width
Trigger
The
pulse
width
trigger
determines
the
trigger
time
according
to
the
pulse
width
,
you
can
capture
the
eligible
pulse
by
setting
the
pulse
width
condition
.
Press
the
TRIG
MENU
→
type
,
select
pulse
width
with
the
Multipurpose
knob
.
User
can
also
switch
the
trigger
type
by
continuously
pressing
the
type
button
,
and
then
press
the
Multipurpose
knob
to
confirm
.
At
this
time
,
the
trigger
setting
is
displayed
at
the
upper
right
corner
of
the
sreen
,
the
trigger
type
is
pulse
width
,
the
trigger
source
is
CH1
,
and
the
trigger
level
is
0
.
00V
.
The
Pulse
Width
Trigger
Menu
Source
:
Press
the
source
button
to
select
any
of
CH1
,
CH2
,
CH3
,
CH4
,
AC
Line
,
EXT
,
and
EXT
/
5
.
Thr
selected
source
will
be
displayed
on
the
upper
right
corner
of
the
screen
.
Note
:
only
selecting
the
channel
with
connected
signals
as
the
trigger
source
can
obtain
a
stable
trigger
.
Condition
:
Press
the
condition
key
to
select
">", "<", "=".
(
1
) >:
Triggers
when
the
pulse
width
of
the
trigger
signal
is
greater
than
the
pulse
width
setting
time
.
(
2
) <:
Triggers
when
the
pulse
width
of
the
trigger
signal
is
less
than
the
pulse
width
setting
time
.
(
3
) =:
Triggers
when
the
pulse
width
of
the
trigger
signal
is
equal
to
the
pulse
width
setting
time
Pulse
Width
Setting
:
Adjust
the
pulse
width
setup
time
with
the
Multipurpose
knob
.
Pulse
Width
Polarity
:
Press
the
pulse
width
polarity
button
to
select
positive
/
negative
pulse
width
.
In
the
oscilloscope
,
the
time
difference
between
the
two
points
where
the
trigger
level
intersects
with
the
positive
pulse
is
defined
as
the
positive
pulse
width;
the
time
difference
between
the
two
points
where
the
trigger
level
intersects
with
the
negative
pulse
is
defined
as
the
negative
pulse
width
,
as
shown
in
the
figure
below
.
24
Summary of Contents for UPO2000E Series
Page 1: ...UPO2000E Series Ultra Phosphor Oscilloscope User Manual...
Page 66: ......
