Tektronix 2221 User Manual

Basic
Applications - 2221
Operators
STORE
Mode
Display
2. Set the STORE / NON - STORE switch to the STORE
position ( button in ) .
C
1. Preset instrument controls and obtain a baseline
trace .
2.
Set the
TRIG
POS
switch for
the
desired
trigger
position .
3. Adjust the TRIGGER LEVEL control to obtain a
stable display of the waveform to be stored . This ensures
that the
trigger
and
the
waveform
to
be
stored are
syn
chronized , especially on low - repetition - rate waveforms .
П
П
П
П
1 П
П
Л
П
3. Set the
STORE
/ NON -
STORE
switch
to the
STORE
position ( button in ) .
4. Set the trigger position to PRETRIGGER ( 7/8 of the
waveform
acquired
before
the trigger )
,
POSTTRIGGER
( 7/8 of the
waveform
acquired after the
trigger
) , or
MID
TRIGGER ( 1/2 of the
waveform
acquired
before
or
after
the
trigger
) .
4. A
STORE
mode
display
may
be
expanded
horizon
tally by the X10 Magnifier switch .
SAVE
Mode
Display
5. Use the
ACQUISITION
MODE Switch to
select
ACCPEAK or
PEAKDET .
1. Acquire a waveform using the " STORE Mode
Display
"
procedure .
AVERAGE
Mode
Display
2. Push the
SAVE / CONT
switch to the
SAVE mode .
1. Preset the instrument controls and obtain a baseline
display .
2. Set the
STORE / NON -
STORE switch to
the STORE
position ( button in ) .
3.
The
SAVE
mode
display
may
be
expanded or
compressed vertically by a factor of 10 times ( or by as
many
VOLTS
/ DIV
switch
positions
remaining
-
whichever
is less ) by switching the corresponding VOLTS / DIV switch
( a
waveform
acquired at 2 mV per
division
cannot
be
expanded , and a waveform acquired at 5 V per division
cannot
be
compressed
) .
3. Adjust the
TRIGGER LEVEL control to
obtain a
stable
display
of the
waveform to be
stored . This
ensures
that the
trigger and the
waveform to be
stored are
syn
chronized , especially on low - repetition - rate waveforms .
n
П 1
n
។
П
4.
Saved
waveforms
may
be
repositioned
using the
POSITION
controls
even
if
they have
been
expanded or
compressed
4. Set the trigger position to PRETRIGGER ( 7/8 of the
waveform acquired before the trigger ) , POSTTRIGGER
( 7/8 of the
waveform
acquired
after
the trigger ) , or
MID
TRIGGER
(
1/2 of the
waveform acquired before or
after
the
trigger
) .
SAVE
REF
Display
1. Acquire the waveform to be used as a reference
using the
previous
"
SAVE
Mode Display "
procedure .
5. Use
the
ACQUISITION
MODE
Switch
to
select
AVERAGE .
2.
Push
the
SAVE
REF switch to
copy the
displayed
waveform
into
SAVE
REF
memory .
NOTE
3.
Pull out
the
X10
MAG
switch to
horizontally
expand
the SAVE
REF
display
by
10 times , if
desired
.
П
П
The Weight
acquisition
to
be
averaged into the
display is
fixed at 1/16 .
A
normalized
algorithm is
used to
display the
averaged
signal .
Averaging
con
tinues until a new
mode is
selected .
Display of the
average continues until a new mode is selected .
Changing a front - panel control that affects the data
being
acquired
restarts the
averaging
process
;
the
algorithm
displays
the new
average
at full
amplitude
.
ACCPEAK or
PEAKDET
Displays
1. Preset the
instrument
controls
and
obtain a
baseline
display
.
C
П
6-3

Tektronix 2221 Specifications

General

Brand	Tektronix
Model	2221
Category	Test Equipment
Language	English