UTD2000M
User
Manual
=
Set
to
trigger
when
slope
at
edge
is
smaller
than
a
preset
value;
Set
to
trigger
when
slope
at
edge
equals
a
preset
value;
Time
Setup
20ns
～
10s
Set
slew
rate
time
Threshold
value
Low
Level
High
Level
High
and
Low
level
Set
a
threshold
level
for
low
level,
a
signal
with
low
level
must
be
smaller
than
the
preset
value;
Set
a
threshold
level
for
high
level,
a
signal
with
high
level
must
be
higher
than
the
preset
value;
Also
set
threshold
level
for
high
and
low
level;
Return
‐‐‐‐
Return
to
“slope
triggering”
menu
Notes:
Only
by
selecting
those
channels
that
has
signal
input
as
the
source
for
triggering,
can
we
get
reliable
triggered
waveform.
Slope
Condition
Oscilloscope
defines
the
positive
slope
time
as
the
time
differences
between
two
cross
points
that
are
formed
when
rising
slope
intersects
with
both
up
levels
and
low
level.
Likewise,
negative
slope
time
is
defined
as
the
time
differences
between
two
cross
points
that
are
formed
when
falling
slope
intersects
with
both
up
levels
and
low
level.
Fig.
2
‐
21
Positive
Slope
Time/Negative
Slope
Time
2.4.5
Less
Amplitude
Pulse
Triggering
Trigger
the
pulse
signal
that
has
passed
one
trigger
level
but
has
failed
to
pass
another
one,
as
shown
below.
Fig.
2
‐
22
Schematic
Diagram
for
Less
Amplitude
Pulse
Triggering
38
