Tektronix 2221 User Manual

Section
6-2221
Operators
o
BASIC APPLICATIONS
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INTRODUCTION
This section
explains
how to
make basic
measurements using the 2221
Oscilloscope
.
Many of these
measurements can
be
obtained with either the
nonstorage mode or one of
the
storage modes . After
becoming familiar with the
capabilities
of
the instrument , the operator can choose the best method for making a particular measurement . Read the " Operating Con
siderations
"
part of this
manual
for
information
on
signal
connections ,
grounding
,
and other
general operating
information
.
When the
procedures
call for
obtaining
a
baseline display , refer
to Initial Setup
in the "
Operator's Checks and
Adjust
ments " part of this manual . The control settings listed in the Initial Setup procedure are considered as the initial control
setup .
Alternate control
settings are usually
needed for making
a specific
measurement
. The
operator
must
determine
the
correct control
settings
for
VOLTS / DIV , SEC
/ DIV ,
TRIGGER , and other
controls
to get
stable display . Only the readouts
necessary for each specific example are shown in the associated illustrations .
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OSCILLOSCOPE DISPLAYS
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The most commonly used oscilloscope displays are described in the following procedures . Verify that the POWER switch
is OFF ( push
button out ) ,
then plug the
power cord into
the ac - power
- input source
outlet .
NON
STORE
DISPLAYS
NOTE
Use the following procedures to obtain the most com
monly used
conventional
oscilloscope
displays .
Instrument warm - up time required to meet all
specification accuracies is 20 minutes .
Normal
Sweep
Display
1. Preset the instrument controls and obtain a baseline
display
.
3.
Advance
the
INTENSITY
control
until the
display
is
visible . If the display is not visible with the INTENSITY
control at midrange , press the BEAM FIND button and
hold it in while
adjusting
the
Channel 1 VOLTS /
DIV switch
to
reduce the
vertical
display
size
.
Center the
compressed
display using the Vertical and Horizontal POSITION con
trols . Release the BEAM FIND button .
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2. Using the supplied 10X probe or a properly ter .
minated
coaxial cable , apply a
signal
to
the CH 1
OR X
input
connector
.
The signal
source
output impedance
determines the
termination
required
when
using
a
coaxial
cable to
interconnect
test
equipment
.
4. Set
the
Channel 1
VOLTS / DIV
switch
and
the
Verti
cal and
Horizontal
POSITION
controls to
locate
the
display
within
the
graticule
area .
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6-1

Tektronix 2221 Specifications

General

Brand	Tektronix
Model	2221
Category	Test Equipment
Language	English