Tektronix 2246 User Manual

ne of
8
SmartCursors® may be displayed to provide
visual feedback to the user about the measure-
ment
points
on
the
displayed
signal
(see
CURSORS).
Only
one
active
measurement
at
a
time
is
allowed.
The
name
of
the
active
measurement
and
readout
of
the
measurement
value
are
displayed
at
the
top
of
the
screen.
Available
voltmeter
menu
choices
are
given
in
Figure
3-8.
ff
the
Horizontal
Mode
is
changed
to
a
mode
that
cannot
be
used
for
the
selected
measurement,
the
measurement
will
be
canceled,
and
no
mes-
Sages
to
that
effect
will
be
displayed.
See
Section
6
for
compatible
modes.
GATED
VOLTMETER
measurements
are
made
within
the
gated
(intensified)
region
on
the
displayed
waveform.
The
position
of
the
gated
zone
is
set
using
the
l-
OR
DELAY
control,
and
the
width
is
set
using
the
-I
OR
A
position
con-
trol.
Gated
measurements
are
not
allowed
in
SGL
SEQ
Trigger
MODE,
and
any
active
gated
meas-
urements
will
be
canceled
if
SGL
SEQ
Trigger
MODE
is
selected.
If
a
gated
measurement
is
Selected
after
switching
to
SGL
SEQ
Trigger
MODE,
the
message
‘NOT
ALLOWED
IN
SSEQ”
will
be
visible
for
two
seconds,
if
a
trigger
occurs.
CURSORS—Calls
up
the
Page
1
menus
used
to
select
a
positionable-cursor
measurement
mode.
Page
2
menus
are
used
to
enable
the
auto-
tracking
SmartCursors®
that
may
be
displayed
(see
Figure
3-9),
Only
two
cursors
of
any
type,
tracking
or
posi-
tionable,
may
be
displayed
at
the
same
time.
Which
enabled
cursors
are
displayed
is
based
on
a
prescribed
priority
system,
with
positionable
cursors
and
measurement-tracking
cursors
taking
priority
over
the
trigger-level
and
ground-tracking
cursors.
Pressing
CLEAR
DISPLAY
turns
off
the
TRACK
TRIG
LVL
and
TRACK
rh
functions
and
removes
the
TRACK
MEASUREMENT
cursors
from
the
waveform
display
(see
the
CLEAR
DISPLAY
description
for
the
way
the
button
operates).
Selecting
a
positionable-cursor
measurement
mode
from
Page
1
prevents
any
of
the
tracking
cursors
from
being
displayed,
but
does
not
dis-
able
the
selection
in
Page
2
of
the
menu.
Enabled
tracking
cursors
will
be
returned
to
the
display
as
their
priority
permits.
Displayed
cursors
are
labeled
to
distinguish
one
type
from
another
(see
Figure
3-10).
In
addition
to
being
enabled
in
the
Page
2
menu,
the
appropriate
settings
of
VERTICAL
MODE,
REV APR 1987
Controls,
Connectors,
and
Indicators-—2246
Operators
(VOLTMETER)
PK-PK
SELF CAL
(TO GATED MEASMT MENU)
(VOLTS
PG
2)
GATED
GATED
GATED
(BACK TO PREVIOUS
6083-10
Figure
3-8.
CH1/CH2
VOLTMETER
Measurement
Menus.
Trigger
SOURCE,
Trigger
MODE,
Trigger
CPLG,
and
Horizontal
MODE
must
be
made
for
the
TRACK
TRIG
LVL
cursor
to
appear
in
the
display.
TRACK
rh
cursors
must
only
be
enabled
and
have
either
CH
1
or
CH
2
VERTICAL
MODE
on.
When
a
l-
VOLTS
-l
or
a
rh
VOLTS
-i
measure-
ment
mode
is
first
selected
{either
by
direct
selec-
tion
or
as
a
result
of
pressing
the
LAST
MEAS’MT
button),
the
voltage
measurement
cur-
sor
positions
are
initialized.
For
l-
VOLTS
-1,
the
SmartCursors®
are
set
at
the
plus-peak
and
minus-peak
values
of
the
lowest
number
displayed
waveform
of
CH
1
or
CH
2.
For
rh
VOLTS
»I,
the
active
cursor
is
set
to
the
plus
peak.
The
l-
VOLTS
-I
cursors
may
be
used
to
3-13

Tektronix 2246 Specifications

General

Brand	Tektronix
Model	2246
Category	Test Equipment
Language	English