Tektronix 2213 User manual

Ibktronix
®
COMMITTED TO EXCELLENCE
PLEASE CHECK FOR CHANGE INFORMATION
AT THE REAR OF THIS MANUAL.
vR
2213
OSCILLOSCOPE
OPERATORS
%
INSTRUCTION MANUAL
Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon 97077
070-3397-00
Product Group 46
Serial Number
First Printing JUN 1981
Revised APR 1982

SIV
Copyright "" 1981 Tektronix, Inc All rights reserved.
Contents of this publ ication may not be reproduced in
any form without the written permission of Tektronix, Inc.
Products of Tektronix,. Inc. and its subsidiaries are
covered by U.S. and foreign patents and/or pending
patents.
■i^i»a
TEKTRONIX, TEK, SCOPE-MOBILE, and Kr_ji, are
registered trademarks of Tektronix, Inc. TELEQUIP-
MENT is a registered trademark of Tektronix, U.K.
Limited. ' ''
Printed in U.S.A. Specification and price change
privileges are reserved.
fifes,'

2213 Operators
TABLE OF CONTENTS
Page
LIST OF ILLUSTRATIONS
LIST OF TABLES
OPERATORS SAFETY SUMMARY.
INTRODUCTION
PREPARATION FOR USE.
SAFETY
LINE VOLTAGE
POWER CORD
LINE FUSE
CONTROLS, CONNECTORS, AND INDICATORS.
POWER, DISPLAY, AND PROBE ADJUST. ...
VERTICAL
HORIZONTAL
TRIGGER
REAR PANEL
OPERATING CONSIDERATIONS. .
GRATICULE
GROUNDING
SIGNAL CONNECTIONS
INPUT COUPLING CAPACITOR
PRECHARGING
INSTRUMENT COOLING
INSTRUMENT FAMILIARIZATION
INTRODUCTION
BASELINE TRACE
DISPLAYING A SIGNAL
1
1
1
1
2
4
4
4
6
6
8
9
9
9
9
9
10
10
10
11
11
Page
OPERATOR'S ADJUSTMENTS 15
INTRODUCTION 15
TRACE ROTATION 15
PROBE COMPENSATION 15
BASIC APPLICATIONS 16
NONDELAYED MEASUREMENTS 16
AC Peak-to-Peak Voltage 16
Instantaneous DC Voltage 17
Algebraic Addition 18
Common-Mode Rejection 18
Time Duration 19
Frequency 20
Rise Time 20
Time Difference Between Two
Time-Related Pulses 21
Phase Difference 22
Amplitude Comparison 23
Time Comparison 24
DELAYED-SWEEP MAGNIFICATION 24
Magnified Sweep 25
Pulse Jitter Time Measurement 26
SPECIFICATION 26
ACCESSORIES 32
STANDARD ACCESSORIES INCLUDED 32
OPTIONAL ACCESSORIES 32
FRONT PANEL ILLUSTRATION
CHANGE INFORMATION
@

2213 Operators
LIST OF ILLUSTRATIONS
Figure Page
The 2213 Oscilloscope iv
1 Power-input-voltage configurations 2
2 Line fuse and power cord 3
3 Power, display, and probe adjust controls, connector, and indicator 4
4 Vertical controls and connectors 5
5 Horizontal controls 6
6 Trigger controls, connector, and indicator 7
7 Rear-panel connector 8
8 Graticule measurement markings 9
9 Initital setup for instrument familiarization procedure 12
10 Probe compensation 16
11 Peak-to-peak waveform voltage 17
12 Instantaneous voltage measurement . 18
13 Algebraic addition 19
14 Common-mode rejection 19
15 Time duration 20
16 Rise time 20
17 Time difference between two time-related pulses 21
18 Phase difference 22
19 High-resolution phase difference 23
20 Delayed-sweep magnification 25
21 Pulse jitter 26
LIST OF TABLES
Table Page
1 Equipment Required for Instrument Familiarization Procedure 10
2 Electrical Characteristics 27
3 Environmental Characteristics 31
4 Physical Characteristics 32

2213 Operators
OPERATORS SAFETY SUMMARY
The general safety information in this part of the summary is for both operating and servicing personnel. Specific warnings
and cautions will be found throughout the manual where they apply and do not appear in this summary.
Terms in This Manual
CAUTION statements Identify conditions or practices
that could result In damage to the equipment or other
property.
WARNING statements Identify conditions or practices
that could result In personal Injury or loss of life.
Grounding the Product
This product Is grounded through the grounding conductor
of the power cord. To avoid electrical shock, plug the
power cord Into a properly wired receptable before con
necting to the product Input or output terminals. A
protective ground connection by way of the grounding
conductor In the power cord Is essential for safe operation.
Terms as Marked on Equipment
CAUTION Indicates a personal Injury hazard not Imme
diately accessible as one reads the markings, or a hazard to
property. Including the equipment Itself.
DANGER Indicates a personal Injury hazard Immediately
accessible as one reads the marking.
Symbols in This Manual
This symbol Indicates where applicable
■|\ cautionary or other Information Is to be
found. For maximum Input voltages, see
Table 2.
A
Symbols as Marked on Equipment
DANGER — High voltage.
Protective ground (earth) terminal.
A ATTENTION — Refer to manual.
Power Source
This product Is Intended to operate from a power source
that does not apply more than 250 volts rms between the
supply conductors or between either supply conductor and
ground. A protective ground connection by way of the
grounding conductor In the power cord Is essential for safe
operation.
Danger Arising From Loss of Ground
Upon loss of the protective-ground connection, all acces
sible conductive parts (Including knobs and controls that
may appear to be Insulating) can render an electric shock.
Use the Proper Power Cord
Use only the power cord and connector specified for
your product.
Use only a power cord that Is In good condition.
For detailed Information on power cords and connectors
see Figure 1.
Use the Proper Fuse
To avoid fire hazard, use only a fuse of the correct type,
voltage rating and current rating as specified In the parts
list for your product.
Do Not Operate in Explosive Atmospheres
To avoid explosion, do not operate this product In an
explosive atmosphere unless It has been specifically cer
tified for such operation.
Do Not Remove Covers or Panels
To avoid personal Injury, do not remove the product
covers or panels. Do not operate the product without the
covers and panels properly Installed.
@
III

2213 Operators
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The 2213 Oscilloscope.
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3397-01
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2213 Operators
INTRODUCTION
The TEKTRONIX 2213 Oscilloscope is a rugged, light
weight, dual-channel, 60-MHz instrument that features a
bright, sharply defined trace on an 80- by 100-mm cathode-
ray tube (crt). Its vertical system provides calibrated
deflection factors from 2 mV per division to 10 V per
division. Trigger circuits enable stable triggering over the
full bandwidth of the vertical system. The horizontal
system provides calibrated sweep speeds from 0.5 s per
division to 50 ns per division along with a delayed-sweep
feature. A X10 magnifier extends the maximum sweep
speed to 5 ns per division.
The instrument is shipped with the following standard
accessories:
1 Operators manual
1 Service manual
2 Probe packages
2 Probe grabber tips
For part numbers and further information about both
standard and optional accessories, refer to the "Accessories"
page at the back of this manual. Your Tektronix represent
ative, your local Tektronix Field Office, or the Tektronix
product catalog can also provide accessories information.
PREPARATION FOR USE
SAFETY
POWER CORD
Refer to the "Operators Safety Summary" at the front
of this manual for power source, grounding, and other
safety considerations pertaining to the use of the 2213.
Before connecting the instrument to a power source,
carefully read the following information about line voltages,
power cords, and fuses; then verify that the proper power-
input fuse is installed.
For the 120-V North American customer, the 2213 is
delivered with a three-wire power cord permanently
attached. At the end of the cord is a three-contact plug for
connection to the power source and to protective ground.
The plug's protective-ground contact connects (through the
protective-ground conductor) to the accessible metal parts
of the instrument. For electrical-shock protection, insert this
plug only into a power-source outlet that has a securely
grounded protective-ground contact.
LINE VOLTAGE
The instrument is capable of continuous operation
using ac-power-input voltages that range from 90 V to
250 V nominal at frequencies from 48 Hz to 62 Hz.
For the non-North American customer (and for the 240-V
North American user), the appropriate power cord is sup
plied by an option that is specified when the instrument is
ordered. The optional power cords available are illustrated
in Figure 1.
REV AUG 1981

2213 Operators
Plug
Configuration
Category
Power Cord
and Plug
Type
Factory
Installed
Instrument
Fuse
Fuse
Holder
Cap
Line Cord
Plug Fuse
U.S. Domestic
Standard
US
120 V
15 A
2 A, 250 V
Fast-blow
AGC/3AG
AGC/3AG None
Option A1
Euro
240V
10-1 6A
2 A,250 V
Fast-blow
5x20 mm
5x20 mm
None
Option A2
UK
240V
13A
2 A,250 V
Fast-blow
5x20 mm
5x20 mm
13A
Type C
Option A3
Australian
240V
10A
2 A, 250 V
Fast-blow
5x20 mm
5x20 mm
None
Option A4
North America
240V
15A
2 A, 250 V
Fast-blow
AGC/3AG
AGC/3AG
None
3397 03 A
Figure 1. Power-input-voltage configurations.
LINE FUSE
2. Press in and slightly rotate the fuse-holder cap coun
terclockwise to release it.
The instrument fuse holder is located on the rear panel
(see Figure 2) and contains the line fuse. Verify that the
proper fuse is installed by performing the following
procedure:
3. Pull out the cap from the fuse holder, with the fuse
attached to the inside of the cap.
4. Note fuse values and verify proper size (2 A, 250 V,
fast-blow).
1. Unplug the power cord from the power-input source
(if applicable).
5. Reinstall the fuse and fuse-holder cap.
REV AUG 1981

2213 Operators
LINE FUSE
POWER CORD
3398-02
Figure 2. Line fuse and power cord.

2213 Operators
CONTROLS, CONNECTORS, AND INDICATORS
The following descriptions are intended to familiarize
the operator with the location, operation, and function of
the instrument's controls, connectors, and indicators.
POWER. DISPLAY. AND
PROBE ADJUST
Refer to Figure 3 for location of items 1 through 7.
Internal Graticule-Eliminates parallax viewing error
between the trace and graticule lines. Rise-time
amplitude and measurement points are indicated at
the left edge of the graticule.
© POWER Switch—Turns instrument power on and off.
Press in for ON; press again for OFF.
AUTO FOCUS Control-Adjusts display for optimum
definition. Once set, the focus of the crt display will
be maintained as changes occur in the intensity level
of the trace.
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3397-04
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PROBE ADJ Connector—Provides an approximately
0.5 V, negative going, square-wave voltage (at ap
proximately 1 kHz) that permits the operator to com
pensate voltage probes and to check operation of the
oscilloscope vertical system. It is not intended to ver
ify the accuracy of the vertical gain or time-base
calibration.
BEAM FIND Switch—When held in, compresses the
display to within the graticule area and provides a
visible viewing intensity to aid in locating off-screen
displays.
TRACE ROTATION Control—Screwdriver control
used to align the crt trace with the horizontal
graticule lines.
AUTO INTENSITY Control-Adjusts brightness of
the crt display. This control has no effect when the
BEAM FIND switch is pressed in. Once the control
is set, intensity is automatically maintained at
approximately the same level between SEC/DIV
switch settings from 0.5 ms per division to 0.05 jus
per division.
VERTICAL
Refer to Figure 4 for location of items 8 through 16.
SERIAL and Mod Slots-The SERIAL slot is im
printed with the instrument's serial number. The
Mod slot contains the option number that has been
installed in the instrument.
CM 1 OR X and CH 2 OR V Connectors-Provide
for application of external signals to the inputs of
the vertical deflection system or for an X-Y display.
In the X-Y mode, the signal connected to the CH 1
OR X connector provides horizontal deflection,
and the signal connected to the CH 2 OR Y con
nector provides vertical deflection.
Figure 3. Power, display, and probe adjust controls, connector, and
indicator.
10) GND Connector—Provides
instrument chassis ground.
direct connection to
REV NOV 1981

2213 Operators
10X PROBE—Indicates the deflection
selected when using a 10X probe.
factor
MHz OSCILLOSCOPE
POSTION
VERTICAL MODE
W I BOTH CH 2 AOO ALT CHOP
1 trrn
CH f VOLTS/DIV
CH 1 opy
CH2 OR
3397-05
Figure 4. Vertical controls and connectors.
Input Coupling (AC-GND-DC) Switches-Used to
select the method of coupling input signals to the
vertical deflection system.
AC—Input signal is capacitively coupled to the
vertical amplifier. The dc component of the input
signal is blocked. Low-frequency limit (—3 dB
point) is approximately 10 Hz.
GND—The input of the vertical ampl ifier is
grounded to provide a zero (ground) reference-
voltage display (does not ground the input signal).
This switch position allows precharging the input
coupling capacitor.
DC—All frequency components of the input
signal are coupled to the vertical deflection system.
@ CH 1 VOLTS/DIV and CH 2 VOLTS/DIV Switches-
Used to select the vertical deflection factor in a 1-2-5
sequence. To obtain a calibrated deflection factor,
the VOLTS/DIV variable control must be in detent.
IX PROBE—Indicates the deflection factor
selected when using either a IX probe or a coaxial
cable.
VOLTS/DIV Variable Controls—When rotated coun
ter clockwise out of their detent positions, these
controls provide continuously variable, uncalibrated
deflection factors between the calibrated settings of
the VOLTS/DIV switches.Extends maximum uncali
brated deflection factor to 25 volts per division with IX
probe (a range of at least 2.5:1).
INVERT Switch—Inverts the Channel 2 display when
button is pressed in. Push button must be pressed
in a second time to release it and regain a noninverted
display.
15) VERTICAL MODE Switches—Two three-position
switches are used to select the mode of operation for
the vertical amplifier system.
CH 1—Selects only the Channel 1 input signal for
display.
BOTH—Selects both Channel 1 and Channel 2
input signals for display. The BOTH position must
be selected for either ADD, ALT, or CHOP
operation.
CH 2—Selects only the Channel 2 input signal for
display.
ADD—Displays the algebraic sum of the Channel 1
and Channel 2 input signals.
ALT—Alternately displays Channel 1 and Channel
2 input signals. The alternation occurs during
retrace at the end of each sweep. This mode
is useful for viewing both input signals at sweep
speeds from 0.05 ps per division to 0.2 ms per
division.
CHOP—The display switches between the Chan
nel 1 and Channel 2 input signals during the
sweep. The switching rate is approximately 250
kHz. This mode is useful for viewing both Channel
1 and Channel 2 input signals at sweep speeds
from 0.5 ms per division to 0.5 s per division.
(1^ POSITION Controls—Used to vertically position the
display on the crt. When the SEC/DIV switch is set to
X-Y, the Channel 2 POSITION control moves the
display vertically (Y-axis), and the Horizontal
POSITION control moves the display horizontally
(X-axis).
REV DOT 1981

2213 Operators
HORIZONTAL
Refer to Figure 5 for location of items 17 through 22.
{W DELAY TIME —Two controls are used in conjunction
with INTENS and DLY'D HORIZONTAL MODE to
select the amount of delay time between the start of
the sweep and the beginning of the intensified zone.
Range Selector Switch—This three-position switch
selects 0.5 us, 10 ijls, and 0.2 ms of delay time. To
increase the sweep delay from the calibrated
setting of the Range Selector switch, rotate the
MULTIPLIER control clockwise.
MULTIPLIER Control—Provides variable sweep
delay from less than 1 to greater than 20 times the
setting of the Range Selector switch.
SEC/DIV Switch—Used to select the sweep speed
for the sweep generator in a 1-2-5 sequence. For
calibrated sweep speeds, the SEC/DIV Variable
control must be in the calibrated detent (fully clock
wise).
<□ POSITION O
HORIZONTAL MODt
>40 OlY KTl
SEC/OIV
3397-06
SEC/DIV Variable Control—Provides continuously
variable, uncalibrated sweep speeds to at least 2.5
times the cal ibrated setting. It extends the slowest
sweep speed to at least 1.25 s per division.
^2^ X10 Magnifier Switch—To increase displayed sweep
speed by a factor of 10, pull out the SEC/DIV
Variable knob. The fastest sweep speed can be
extended to 5 ns per division. Push in the SEC/DIV
Variable control knob to regain the XI sweep speed.
HORIZONTAL MODE Switch—This three-position
switch determines the mode of operation for the
horizontal deflection system.
NO DLY—Horizontal deflection is provided by the
sweep generator, without a delayed start, at a
sweep speed determined by the SEC/DIV switch.
INTENS—Horizontal deflection is provided by the
sweep generator at a sweep speed determined by
the SEC/DIV switch. The sweep generator also
provides an intensified zone on the display. The
start of the intensified zone represents the sweep-
start point when DLY'D HORIZONTAL MODE
is selected.
DLY'D—Horizontal deflection is provided by the
sweep generator at a sweep speed determined by
the SEC/DIV switch setting. The start of the
sweep is delayed from the initial sweep-trigger
point by a time determined by the setting of the
DELAY TIME Range Selector switch and MULTI
PLIER control.
the display hori-
Figure 5. Horizontal controls.
@ POSITION Control-Positions
zontally in al l modes.
TRIGGER
Refer to Figure 6 for locations of items 23 through 30.
EXT INPUT Connector —Provides a means of intro
ducing external signals into the trigger generator.
EXT COUPLING Switch—Determines the method
used to couple external signals to the Trigger circuit.
AC—Signals above 60 Hz are capacitively coupled
to the input of the Trigger circuit. Any dc com
ponents are blocked, and signals below 60 Hz are
attenuated.

2213 Operators
DC—All components of the signal are coupled to
the trigger circuitry. This position is useful for
displaying low-frequency or low-repetition-rate
signals.
DC-f10—External trigger signals are attenuated by
a factor of 10.
SOURCE Switch—Determines the source of the
trigger signal that is coupled to the input of the
trigger circuit.
INT Switch—Selects the source of the triggering
signal when the SOURCE switch is set to INT.
CH 1—The signal applied to the CH 1 OR X input
connector is the source of the trigger signal.
VERT MODE—The internal trigger source is
determined by the signals selected for display by
the VERTICAL MODE switches.
CH 2—The signal applied to the CH 2 OR Y input
connector is the source of the trigger signal.
INT—Permits triggering on signals that are applied
to the CH 1 OR X and CH 2 OR Y input con
nectors. The source of the internal signal is
selected by the INT switch.
LINE—Provides a triggering signal from a sample
of the ac-power-source waveform. This trigger
source is useful when channel-input signals are
time related (multiple or submultiple) to the
frequency on the power-source-input voltage.
EXT—Permits triggering on signals applied to the
EXT INPUT connector.
TRIGGER
VAR HOLDOff
MODE
AUTO NORM TV FIELD
nt-k source coupling
A
(2^ LEVEL Control—Selects the amplitude point on the
trigger signal at which the sweep is triggered.
(2^ TRIG'D Indicator—The light-emitting diode (LED)
illuminates to indicate that the sweep is triggered.
SLOPE Switch—Selects the slope of the signal that
triggers the sweep (also refer to TV Signal Displays at
the end of "Instrument Familiarization").
the positive-going
Sweep is triggered on
portion of the trigger signal.
~\_—Sweep is triggered on the negative-going
portion of the trigger signal.
MODE Switch —Determines the trigger mode for the
sweep.
AUTO—Permits triggering on waveforms having
repetition rates of at least 20 Hz. Sweep free-runs
in the absence of an adquate trigger signal or when
the repetition rate is below 20 Hz. The range of
the TRIGGER LEVEL control will compensate
for the amplitude variations of the trigger signals.
NORM—Sweep is initiated when an adequate
trigger signal is applied. In the absence of a trigger
signal, no baseline trace will be present. Triggering
on television lines is accompl ished in this mode.
TV FIELD—Permits triggering on television field-
rate signals (refer to TV Signal Displays at the end
of "Instrument Familiarization".
3397-07
Figure 6. Trigger controls, connector, and indicator.
(3^ VAR HOLDOFF Control—Provides continuous con
trol of holdoff time between sweeps. Increases
the holdoff time by at least a factor of four. This
control improves the ability to trigger on aperiodic
signals (such as complex digital waveforms).
REV NOV 1981

2213 Operators
REAR PANEL
Refer to Figure 7 for location of item 32.
^22) EXT Z AXIS Connector—Provides a means of con
necting external signals to the Z-axis amplifier to
intensity modulate the crt display. Applied signals
do not affect display waveshape. Signals with fast
rise times and fall times provide the most abrupt
intensity change, and a 5-V p-p signal will produce
noticeable modulation. The Z-axis signals must be
time-related to the display to obtain a stable present
ation on the crt.
n
Q
CAUTION
FOR CONTINUED FIRE PROTECTION
REPIACE ONU WITH SPECIFIED
TYPE AND RATED FUSE. DISCONNECT
POWER INPUT BEFORE REPLACING FUSE
(line VOLTAGE RANGE FUSE 2S0V
00 NOT REMOVE
COVER REFER
SERVICING TO
QUALIFIED
PERSONNEL
©
CAUTION
TO AVOID ELECTRIC
SHOCK. THE POWER
CDRO PROTECTIVE
GROUNDING CONDUCTOR
MUST BE CONNECTED
TO GROUND
EXT I AXIS INPUT
1DKR POSITIVE GOING
INPUT DECREASES
INTENSITY
S VOLT P P CAUSES
NOTICEABLE
MODULATION AT
NORMAL INTENSITY
2 30V PEAK
BEAVERTON OREGON
3397-08
Figure 7. Rear-panel connector.
@

2213 Operators
OPERATING CONSIDERATIONS
This section contains basic operating information and
techniques that should be considered before attempting
any measurements.
GRATICULE
The graticule is internally marked on the faceplate of
the crt to enable accurate measurements without parallax
error (see Figure 8). It is marked with eight vertical and ten
horizontal major divisions. Each major division is divided
into five subdivisions. The vertical deflection factors and
horizontal timing are calibrated to the graticule so that
accurate measurements can be made directly from the crt.
Also, percentage markers for the measurement of rise and
fall times are located on the left side of the graticule.
1ST OR LEFT
VERTICAL
GRATICULE
LINE
CENTER 11TH OR RIGHT
VERTICAL VERTICAL
GRATICULE GRATICULE
LINE LINE
1 /
; i....
/-
""i""
' 1
■
RISE AND
FALL TIME
MEASUREMENT
PERCENTAGE
MARKERS
CENTER
HORIZONTAL
GRATICULE
LINE
4115-16
SIGNAL CONNECTIONS
Generally, probes offer the most convenient means of
connecting an input signal to the instrument. They are
shielded to prevent pickup of electromagnetic interference,
and the supplied 10X probe offers a high input impedance
that minimizes circuit loading. This allows the circuit under
test to operate with a minimum of change from its normal
condition as measurements are being made.
Coaxial cables may also be used to connect signals to the
input connectors, but they may have considerable effect on
the accuracy of a displayed waveform. To maintain the
original frequency characteristics of an applied signal,
only high-quality, low-loss coaxial cables should be used.
Coaxial cables should be terminated at both ends in their
characteristic impedance. If this is not possible, use suitable
impedance-matching devices.
INPUT COUPLING CAPACITOR
PRECHARGING
When the input coupling switch is set to GND, the input
signal is connected to ground through the input coupling
capacitor in series with a 1-MJ2 resistor to form a pre-
charging network. This network allows the input coupling
capacitor to charge to the average dc-voltage level of the
signal applied to the probe. Thus, any large voltage
transients that may accidentally be generated will not be
applied to the amplifier input when the input coupling
switch is moved from GND to AC. The precharging net
work also provides a measure of protection to the external
circuitry by reducing the current levels that can be drawn
from the external circuitry during capacitor charging.
Figure 8. Graticule measurement markings.
GROUNDING
The most reliable signal measurements are made when
the 2213 and the unit under test are connected by a com
mon reference (ground lead), in addition to the signal lead
or probe. The probe's ground lead provides the best
grounding method for signal interconnection and ensures
the maximum amount of signal-lead shielding in the probe
cable. A separate ground lead can also be connected from
the unit under test to the oscilloscope GND connector
located on the front panel.
The following procedure should be used whenever the
probe tip is connected to a signal source having a different
dc level than that previously applied, especially if the dc-
level difference is more than 10 times the VOLTS/DIV
switch setting;
1. Set the AC-GND-DC switch to GND before con
necting the probe tip to a signal source.
2. Insert the probe tip into the oscilloscope GND
connector.

2213 Operators
3. Wait several seconds for the input coupl ing capacitor
to discharge.
6. Set the AC-GND-DC switch to AC. The display will
remain on the screen, and the ac component of the signal
can be measured in the normal manner.
4. Connect the probe tip to the signal source.
INSTRUMENT COOLING
5. Wait several seconds for the input coupling capacitor
to charge.
To maintain adequate instrument cooling, the ventila
tion holes on both sides and rear panel of the equipment
cabinet must remain free of obstructions.
INSTRUMENT FAMILIARIZATION
INTRODUCTION
The procedures in this section are designed to assist you
in quickly becoming familiar with the 2213. They provide
information which demonstrates the use of all the controls,
connectors, and indicators and will enable you to effi
ciently operate the instrument.
Before proceeding with these instructions, verify that
the POWER switch is OFF (push button out), then plug
the power cord into the ac-power-input-source outlet.
If during the performance of these procedures an im
proper indication or instrument malfunction is noted, first
verify correct operation of associated equipment. Should
the malfunction persist, refer the instrument to qualified
service personnel for repair or adjustment.
The equipment l isted in Table 1, or equivalent equip
ment, is required to complete these famil iarization
procedures.
Table 1
Equipment Required for Instrument
Familiarization Procedure
Description
Minimum Specification
Cal ibration
Generator
Standard-amplitude accuracy: ±0.25%.
Signal amplitude: 2 mV to 50 V.
Output signal: 1-kHz square wave.
Fast-rise repetition rate: 1 to 100 kFlz.
Rise time: 1 ns or less.
Signal ampl itude: 100 mV to 1 V.
Aberrations: ±2%.
Dual-Input
Coupler
Connectors: bnc-female-to-dual-bnc-male.
Cable
(2 required)
Impedance: 50 fl. Length: 42 in.
Connectors: bnc.
Adapter
Connectors: bnc-female-to-bnc female.
Termination
Impedance: 50 fl. Connectors: bnc.
10

2213 Operators
BASELINE TRACE
First obtain a baseline trace, using the following
procedure.
1. Preset the instrument front-panel controls as follows:
NOTE
Normally, the resulting trace will be parallel with
the center horizontal graticule line and should not
require adjustment. If trace alignment is required,
see the "Trace Rotation" adjustment procedure
under "Operator's Adjustments."
Display
AUTO INTENSITY
AUTO FOCUS
Vertical (Both Channels)
AC-GND-DC
VOLTS/DIV
VOLTS/DIV Variable
VERTICAL MODE
INVERT
POSITION
Horizontal
SEC/DIV
SEC/DIV Variable
HORIZONTAL MODE
X10 Magnifier
POSITION
DELAY TIME
Range Selector
MULTIPLIER
Trigger
SLOPE
LEVEL
MODE
EXT COUPLING
SOURCE
VAR HOLDOFF
INT
Fully counterclockwise
(minimum)
Midrange
AC
50 m (IX)
Cal ibrated detent
(fully clockwise)
CM 1
Off (button out)
Midrange
0.5 ms
Calibrated detent
(fully clockwise)
NO DLY
Off (variable knob in)
Midrange
0.2 ms
Fully counterclockwise
_/~(lever up)
Midrange
AUTO
AC
INT
Fully counterclockwise
VERT MODE
DISPLAYING A SIGNAL
After obtaining a baseline trace, you are now ready to
connect an input signal and display it on the crt screen.
1. Connect the cal ibration generator standard-amplitude
output to both the CH 1 and CH 2 inputs as shown in
Figure 9.
2. Set the calibration generator for a standard-ampl itude
1-kHz square-wave signal and adjust its output to obtain
a vertical display of 4 divisions.
3. Adjust the Channel 1 POSITION control to center
the display vertically on the screen.
4. Adjust the TRIGGER LEVEL control, if necessary,
to obtain a stable triggered display.
NOTE
The TRIG'D indicator should illuminate to indicate
that the sweep is triggered.
5. Rotate the AUTO FOCUS control between its
maximum clockwise and counterclockwise positions.
The display should become blurred on either side of the
optimum control setting.
2. Press in the POWER switch button (ON) and allow
the instrument to warm up for 20 minutes.
6. Set the AUTO FOCUS control for a sharp, well-
defined display over the entire trace length.
3. Adjust the AUTO INTENSITY control for desired
display brightness.
4. Adjust the Vertical and Horizontal
controls to center the trace on the screen.
POSITION
7. Move the display off the screen using the Channel 1
POSITION control.
8. Press in and hold the BEAM FIND push button;
the display should reappear on the screen. Adjust the
Channel 1 and Horizontal POSITION controls to center
the trace both vertical ly and horizontally. Release the
@
11

2213 Operators
BEAM FIND button; the display should remain within
the viewing area.
5. Set the Channel 1 AC-GND-DC switch to AC.
9. Adjust the AUTO INTENSITY control counterclock
wise until the display disappears.
6. Observe that the display is centered approximately
at the center horizontal l ine.
10. Press in and hold the BEAM FIND push button;
the display should reappear. Release the BEAM FIND
button and adjust the AUTO INTENSITY control to
desired display brightness.
7. Set the CH 1 VOLTS/DIV switch to 0.1 (IX) and
observe that a 2-division vertical display appears.
8. Rotate the CFI 1 VOLTS/DIV Variable control
fully counterclockwise.
Using the Vertical Section
1. Set the Channel 1 AC-GND-DC switch to GND.
2. Adjust the trace to the center horizontal graticule
l ine.
3. Set the Channel 1 AC-GND-DC switch to DC.
9. Observe that minimum vertical deflection occurs
when the VOLTS/DIV Variable contol is fully counter
clockwise.
10. Rotate the CH 1 VOLTS/DIV Variable control fully
clockwise to the CAL detent.
4. Observe that the bottom of the display remains at
the center horizontal graticule line (ground reference).
11. Select CH 2 VERTICAL MODE and again perform
preceding steps 1 through 10 using Channel 2 controls.
Performance should be similar to Channel 1.
-4
220
rETD
1 • .a
DUAL-INPUT
COUPLER
50 n
CABLE
CALIBRATION
GENERATOR
AMPL
-OUTPUT
.«J
3397-10
Figure 9. Initial setup for instrument familiarization procedure.
12

2213 Operators
12. Set both Channel 1 and Channel 2 AC-GND-DC
switches to DC. Ensure that both CH 1 and CH 2 VOLTS/
DIV switches are set to 0.1 (IX) for 2-division displays.
24. Select CH 1 VERTICAL MODE and set Channel 1
AC-GND-DC switch to DC. Recenter the display on the
screen.
13. Select BOTH and ADD VERTICAL MODE and
observe that the resulting display is 4 divisions in amplitude.
Both Channel 1 and Channel 2 POSITION controls should
move the display. Recenter the display on the screen.
Using the Horizontal Section
1. Return the SEC/DIV switch to 0.5 ms and note
the display for future comparison in step 3.
14. Press in the Channel 2 INVERT push button to invert
the Channel 2 signal.
2. Set the SEC/DIV switch to 5 ms and pull the SEC/
DIV Variable control knob out to obtain X10 sweep
magnification.
15. Observe that the display is a straight line, indicating
that the algebraic sum of the two signals is zero.
3. Observe that the display is similar to that obtained
in step 1.
16. SettheCH2VOLTS/DIVswitchto50m (IX).
17. Observe the 2-division display, indicating that the
algebraic sum of the two signals is no longer zero.
4. Rotate the Horizontal POSITION control throughout
its range. Observe that the display can be positioned to
either side of the center vertical graticule line.
18. Press in the Channel 2 INVERT push button again
to release it. Observe a noninverting display having a
6-division signal amplitude.
19. Set both Channel 1 and Channel 2 AC-GND-DC
switches to GND.
20. Set the CH 1 VOLTS/DIV switch to 50 m (IX).
21. Select ALT VERTICAL MODE. Position the Chan
nel 1 trace two divisions above the center graticule line and
position the Channel 2 trace two divisions below the center
graticule l ine.
22. Rotate the SEC/DIV switch throughout its range
(except X-Y). The display will alternate between channels
at all sweep speeds. This mode is most useful for sweep
speeds from 0.05 /is to 0.2 ms per division.
5. Push in the SEC/DIV Variable control knob to obtain
a XI sweep.
6. Return the SEC/DIV switch to 0.5 ms.
7. Rotate the VAR HOLDOFF control to its maximum
clockwise position.
8. Observe that the crt trace starts to flicker as the
holdoff between sweeps is increased.
9. Return the VAR HOLDOFF control to its NORM
position (fully counterclockwise). Note the display for
future comparison in step 11.
10. Rotate the SEC/DIV Variable control out of the
CAL detent to its maximum counterclockwise position.
23. Select CHOP VERTICAL MODE and rotate the
SEC/DIV switch throughout is range (except X-Y). A dual-
trace display will be presented at all sweep speeds, but
unlike the ALT mode, both Channel 1 and Channel 2
signals are displayed for each sweep speed on a time-shared
basis. This mode is most useful for sweep speeds from
0.5 ms to 0.5 s per division.
11. Observe that the sweep rate is approximately 2.5
times slower than in step 9, as indicated by more cycles
displayed on the screen.
12. Return the SEC/DIV Variable control to the CAL
detent (fully clockwise).
13

2213 Operators
Using the Delay Time Controls
1. Select INTENS HORIZONTAL MODE.
2. Rotate the MULTIPLIER control; observe that the
start of the intensified zone moves along the display.
7. Set the TRIGGER MODE switch to NORM.
8. Rotate the TRIGGER LEVEL control between its
maximum clockwise and counterclockwise positions.
Observe that the TRIG'D indicator illuminates only when
the display is correctly triggered.
3. Select DLY'D HORIZONTAL MODE and observe
that the intensified zone, previously viewed with INTENS
selected, is now displayed on the crt screen.
9. Set the TRIGGER MODE switch to AUTO and set
the TRIGGER SOURCE switch to EXT.
4. Observe that the display moves continuously across
the screen as the MULTIPLIER control is rotated.
10. Remove the cal ibration signal from the CH 2 input
connector and connect it to the EXT INPUT connector.
5. Set the SEC/DIV switch to 5 ijls and observe that the
magnification of the display is approximately 100 times
greater.
6. Select NO DLY HORIZONTAL MODE and return
the SEC/DIV switch to 0.5 ms.
11. Set the CH 1 VOLTS/DIV switch to 0.5 (IX) and
adjust the output of the calibration generator to provide
a 4-division display. Adjust the TRIGGER LEVEL control
for a stable display and note the range over which a stable
display can be obtained (for comparison in step 13).
12. Set the TRIGGER SOURCE switch to EXTTIO.
Using the Trigger Section
1. Rotate the TRIGGERLEVEL control between its
maximum clockwise and counterclockwise positions. The
display will remain triggered throughout the rotation of the
control.
2. Return the TRIGGER LEVEL control to the
midrange position.
3. Set the TRIGGER SLOPE switch to ^ (minus).
Observe that the display starts on the negative-going slope
of the applied signal.
4. Return the TRIGGER SLOPE switch to J~ (plus).
Observe that the display starts on the positive-going slope
of the appl ied signal.
5. Set the INT switch to CH 1, select CH 2 VERTICAL
MODE, and set the Channel 1 AC-GND-DC switch to GND.
Observe that the display free-runs. Return the Channel 1
AC-GND-DC switch to AC.
6. Set the INT switch to CH 2, select CH 1 VERTICAL
MODE, and set the Channel 2 AC-GND-DC switch to GND.
Observe that the display free-runs. Return the Channel 2
AC-GND-DC switch to AC and set the INT switch to
VERT MODE.
13. Observe that adjustment of the TRIGGER LEVEL
control provides a triggered display over a narrower range
than in preceding step 11, indicating trigger-signal
attenuation.
14. Remove the calibration signal from the EXT INPUT
connector and reconnect it to the CH 2 input connector.
Set the TRIGGER SOURCE switch to INT and adjust the
TRIGGER LEVEL control for a stable display.
Using the X-Y Mode
1. Set both the CH 1 and CH 2 VOLTS/DIV switches
to 1 (IX) and adjust the generator output to provide a
5-division display.
2. Select X-Y mode by switching the SEC/DIV switch
to its fully counterclockwise position.
3. Adjust the AUTO INTENSITY control for desired
display brightness. Observe that two dots are displayed
diagonally. This display can then be positioned horizontally
with the Horizontal POSITION control and vertically with
the Channel 2 POSITION control. Note that the dots are
separated by 5 horizontal divisions and 5 vertical divisions.
4. Set both the CH 1 and CH 2 VOLTS/DIV switches
to 2 (IX). Note that the dots are now separated by 2.5
horizontal divisions and 2.5 vertical divisions.
5. Return the SEC/DIV switch to 0.5 ms and adjust the
AUTO INTENSITY control for desired display brightness.
14
REV OCT 1981