Controls, Connectors,
and
lndicators-2230
Operators
3-14
Reference memory. The written waveform
remains displayed
on
the crt. A control
change or a delay of five seconds between
pressing the SAVE
REF
button
and
selecting a memory location cancels the
SAVE request.
In
4K acquisition mode, a choice may
be
made to save the entire 4K acquisition or
the 1 K display window. To save a 4K
acquisition, press SAVE
REF,
then press
DISPLAY ON/OFF 1 twice.
The
4K
record
fills MEMORY
1,
2,
and
3.
To save only the
1 K displayed window, press SAVE
REF,
then press DISPLAY ON/OFF
1,
then
DISPLAY ON/OFF
2.
The 1 K display win-
dow may also
be
saved
in
MEMORY 2 or 3
by pressing SAVE
REF,
then the desired
DISPLAY ON/OFF button.
Menu Select/DISPLAY ON/OFF
Switches-
These buttons select
one
of
three memories that
is
either written to for
saving a 1 K acquisition waveform (if SAVE
REF
has
been
pressed) or toggles the refer-
ence memory display
on
or off (if the SA
VE
button
has
not
been
pressed).
The
stored
waveforms of
all
three memories
can
be
displayed at the same time. Two channels
acquired
in
CHOP
or ALT may
be
stored
in
a SAVE
REF
memory.
MENU
CONTROL-When the WAVEFORM
REFERENCE/MENU SELECT switch
is
in
the
MENU
SELECT position (button out), the
MEMORY switches control
Menu
Operation.
Waveforms
are
only displayed with menus
when a
menu
choice requires a waveform
be
displayed
in
order to perform the selected
change. The Menu allows selection of alternate
parameters
and
modes that override the
default front-panel settings.
SAVE REF/•
Switch-When
pressed, the
next (to the right)
Menu
level
is
entered.
Menu Select/DISPLAY ON/OFF
Switches-
These three buttons select
choices presented
in
the MENU.
The
....
but-
ton recalls the previous (to the left, higher)
Menu
level.
The
T button selects
the
previ-
ous entry
in
the current
Menu
level.
The 1
button selects the next entry
in
the current
Menu
level.
MENU SELECTED FUNCTIONS
This part describes the Menu selected functions that
provide selection of parameters, settings,
and
features not
controlled
by
the front-panel switches.
NOTE
Some menus change
if
Option
10
or
Option
12
is
installed.
See
the
OPTIONS section
in
this manual.
ACQ MODE SETUP TABLE
ACQ
MODE SETUP TABLE controls the acquisition
mode setup using a table.
SELECT MODE-Displays the acquisition modes
in
a
table.
The
desired modes for
each
sweep speed may
be
selected using the SEC/DIV switch to select the
column, the CURSORS Position control selects the
row,
and
the SELECT C1/C2 switch toggles the choice
for the table position that
is
enclosed
in
a box.
SWP LIMIT
-Selects
the number of acquisitions before
the acquisition system halts.
SWP
LIMIT may
be
reset
by
changing
any
control that affects acquisition parame-
ters.
WEIGHT
-Selects
the weight of the last sample
in
AVERAGE
mode.
ATRIGPOS
- -
A TRIG
POS
selects the number of points acquired
prior to or following the trigger.
DISPLAY
DISPLAY controls the selection of display parameters.
DELTA T
MODE-Selects
either DELTA TIME or ONE
OVER
DELTA TIME for display
in
the readout.
VECTORS
ON/OFF-Selects
either DOTS or VEC-
TORS
as
the waveform display
mode.
Vectors are not
allowed
in
REPETITIVE mode.
SMOOTH
ON/OFF-Selects
the process with which the
vector displays are produced when
in
PEAKDET or
ACCPEAK.
With SMOOTH
OFF,
no
reordering of the data points
is
done,
and
vectors
are
drawn between
all
of the
minimum
and
maximum data points.
With SMOOTH
ON,
data points
are
reordered for
correct slope
and
interpolated for drawing a smooth
waveform. Smoothing looks at the change
in
value of
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