Tektronix 2247A

a
to
ne
Operators Familiarization
remain
on
for
making
further
choices
until
the
CLEAR
DISPLAY
button
Is
pressed
or
MENU
OFF
selected
(if
a
menu
choice).
The
service
menu
can
be
turned
off
by
selecting
QUIT
from
the
menu
or
pressing
the
CLEAR
DIS-
PLAY
button.
Clearing
the
Menu
and
Cursors
Display
The
CLEAR
DISPLAY
button
clears
displayed
menus,
turns
off
measure-
ment
functions
(including
TRACK
MEASMT
cursors),
and
turns
off
the
TRACK
TRIG
LVL
and
TRACK
/1
cursors.
Depending
on
what
menus
and
measurements
are
displayed
at
the
tlme,
you
may
have
to
press
the
CLEAR
DISPLAY
button
as
many
as
three
times
to
completely
clear
the
display.
lf a menu Is on, pressing the CLEAR DISPLAY will remove the menu and
return the display to a normal operating mode. Measurement functions are
turned off with the second press (or the first press If no menu Is displayed).
Finally, the TRACK TRIG LVL and TRACK 7h cursors are canceled with a
third press (or the first press If no menu Is displayed and no measurement
function Is active).
Setting Measurement Channel
Press SET MEAS'MT CHANNEL button to call up one of the menus for
setting the measurement channel(s). There are one-page menus avallable
for voltmeter and rise/fall measurements and single-channel C/T measure-
ments, and two-page menus for all the measurements that can have two
different measurement channels. Each menu lists Input channels that can
be selected for the active measurement mode.
\f the SET MEAS’MT CHANNEL button Is pressed for an Invalld mode, one
of the following messages will be displayed In the top line for about two
seconds.
SELECT A MEASUREMENT—When no measurement mode Is
active.
NO MEAS CHANNEL NEEDED—When a selected measurement
mode (such as cursor time) does not require a measurement channel
setting.
When a SET MEAS'MT CHANNEL menu Is displayed, switching between A
and ALT Horizontal MODES normally clears the menu and turns off the
active measurement mode.
Pressing a menu button next to a vertical channel number selects that
choice as the source channel for the measurement. For Channel 1 or
2247A Operators 3-7