Tektronix 2246 User Manual

Measurement
Processes
and
Applications-——
2246
Operators
Input Channel
VOLTS/DIV Setting
VAR VOLTS/DIV
To display about 3 to 5
divisions of signal.
Calibrated (fully
clockwise in detent).
input Channel
COUPLING DC
BW LIMIT OFF (button light off).
CH 2 INVERT OFF (button light off).
Horizontal MODE A
X10 MAG Off (button light off).
SEC/DIV Suitable sweep speed for
the applied signai.
Start of trace at left
graticule edge.
Set to select the A Trigger
control settings
(button light on).
TRIGGER MODE AUTO LEVEL
TRIGGER SOURCE VERT
TRIGGER COUPLING DC
HOLDOFF MIN (fully counterclockwise)
MEASUREMENT All off (press
MODES, TRACKING CLEAR DISPLAY
CURSORS and three times to
MENUS ensure all off).
Horizontal POSITION
A/B SELECT
3. Press the CH1/CH2 VOLTMETER button to call up
the selection menu and select the +PEAK choice. Any of »
the
page
one
choices
may
be
selected
as
required
for
the
waveform
measurement
wanted.
NOTE
Depending on the way the CONFIGURE choices of
the SERVICE menu have been made, the menu will
either
go
off
when
the
measurement
selection
is
made
or
it
will
stay
on.
If
the
menu
remains
on,
press
the
CLEAR
DISPLAY
button
once
to
remove
it
from
the
display.
See
the
"SERVICE
MENU”
discus-
sion in this section for further details. l
4.
The
TRACK
MEASMT
cursor
may
be
displayed
with
the
waveform.
Pressing
CLEAR
DISPLAY
in
the
initial
setup
removes
the
measurement
tracking
cursor
from
the
display
but
does
not
disable
the
feature
once
it
has
been
enabled;
and
the
next
time
a
CH1/CH2
VOLTMETER
measurement
mode
is
called
for,
the
measurement
track-
ing
cursor
is
again
displayed.
5.
Press
the
CURSORS
button
and
display
page
2
of
the
menu
by
selecting
the
(TO
AUTO
TRACKING
MENU)
6-10
choice.
Of
the
three
features
available
in
page
2,
select
both
TRACK
MEASMT
and
TRACK
rh.
Menu
labels
are
UNDERLINED
when
the
function
is
enabled.
The
TRACK
rh
cursor
is
especially
useful
for
providing
feedback
to
the
user
about
de
offset
of
the
signal
from
ground
level.
NOTE
In
this
menu,
the
select
buttons
toggle
the
choices
on
and
off
with
each
press,
and
all
three
choices
may
be
selected
(but
not
all
displayed
together
because
only
two
cursors
are
allowed).
Also,
press-
ing
CLEAR
DISPLAY
(as
many
as
three
times
may
be
necessary)
does
turn
off
the
TRACK
TRIG
LVL
and
TRACK
rh
choices.
6.
Press
either
MENU
OFF
(in
the
menu
selection
list)
or
CLEAR
DISPLAY
(once)
to
remove
the
AUTO
TRACK-
ING
menu
from
the
display.
NOTE
If
CH1/CH2
VOLTMETER
PK-PK
measurement
is
selected,
two
TRACK
MEASMT
cursors
are
required;
therefore,
the
TRACK
rh
cursor
will
not
be
displayed,
7.
See
Figure
6-7.
The
test
signal
used
for
the
example
has
a
de
offset
(as
shown
by
the
position
of
the
TRACK
rh
cursor),
and
+
PEAK
value
(peak
ac
+
dc)
as
indicated
by
the
voltage
readout.
GATED VOLTAGE
MEASUREMENT
If you need to track the +PEAK, —PEAK, or PK-PK
voltage of a selected portion of a waveform, that portion
can be defined using the GATED MEASUREMENTS avail-
able in page 2 of the CH1/CH2 VOLTMETER menu. The
general steps given is the previous +PEAK Voltage
Measurement procedure are used for this function also.
Set up all the controls and apply the signal to be meas-
ured in the same way; but, after pressing the CH1/CH2
VOLTMETER button, select the (TO GATED MEASMT
MENU) choice. After that, follow these additional steps to
make the gated measurement.
1. Select GATED +PEAK measurement mode. The
menu will be removed (if configured to do so), and any
enabled tracking cursors will be displayed. If none are
enabled in page 2 of the CURSORS menu, none will be
displayed.

Tektronix 2246 Specifications

General

Brand	Tektronix
Model	2246
Category	Test Equipment
Language	English