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HP 5335A - Page 25

HP 5335A
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Operation
and
Programming
2V-
OV
TRIGGER
LEVEL
TRIGGER
LEVEL
PRESET
TRIGGER
ADJUSTMENT
RANGE,
OUT
OF
PRESET
WITH
AUTO
ADJUSTABLE
TRIGGERING
AND
A
2
v
p-p
INPUT
SIGNAL.
3-66.
Pressing
the
AUTO
TRIG
key,
with
the
trigger
adjustment
control
in
PRESET,
selects
the
Auto
PRESET
triggering
mode.
In
this
mode,
peak
detectors
on
both
channels
determine
the
peaks
of
the
input
signal.
The
trigger
level
is
automatically
set
to
the
50%
point
of
the
peaks,
regardless
of
the
dc
offset
of
the
input.
50%
J-TRIGGER
LEVEL
3-67.
An
additional
mode
of
triggering
is
used
by
the
functions
RISE/FALL
A
and
SLEW
A.
The
peaks
of
the
input
signal
are
determined
and
the
10%
and
90%
points
are
found.
These
dc
levels
are
assigned
as
trigger
levels
by
the
respective
SLOPE
keys,
to
Channels
A
and
B.
Pressing
TRIG
LVL
will
display
the
10%
and
90%
levels
determined.
3-68.
The
front
panel
3-state
Trigger
Lights
provide
a
visual
indication
of
each
channel’s
triggering
status.
When
the
light
is
on,
the
trigger
level
is
set
too
low
(or
the
signal
is
too
high).
When
the
light
is
off,
the
trigger
level
is
set
too
high
{or
the
signal
is
too
low).
When
the
light
is
flashing,
the
trigger
level
is
set
within
the
peak
limits
of
the
input
signal
{±
the
hysteresis
offset
of
the
input
amplifier)
and
the
channel
is
triggering.
INPUT
TRIG
LVL
|
TRIGGER
LIGHT
ON
|
TRIGGER
LIGHT
OFF
3-9
Model
5335A

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