Tektronix 2213A User manual

Tektronix-
2213A
OSCILLOSCOPE
OPERATORS
INSTRUCTION MANUAL

2213A Operators
TABLE OF
Page
LIST OF ILL STRATIONS ...................................... M
LIST OF TABLES ..................................................... ii
OPERATORS SAFETY S MMARY ........................ Mi
Section 1 GENERAL INFORMATION
INTRODUCTION ................................ 1-1
SPECIFICATION .................................. 1-1
CALIBRATION ...................................... 1-9
REPACKAGING FOR SHIPMENT .... 1-9
Section 2 PREPARATION FOR SE
FIRST-TIME START UP .................... 2-1
SAFETY .......................................... 2-1
LINE VOLTAGE .............................. 2-1
POWER CORD .............................. 2-1
LINE FUSE .................................... 2-1
INSTRUMENT COOLING .............. 2-2
CONTROLS, CONNECTORS, AND
INDICATORS ...................................... 2-
DISPLAY, POWER, AND PROBE
ADJUST .......................................... 2-
VERTICAL ...................................... 2-4
HORIZONTAL ................................ 2-5
TRIGGER ........................................ 2-6
REAR PANEL ................................ 2-7
Section 3 OPERATORS FAMILIARIZATION
GENERAL OPERATING
INFORMATION .................................... -1
GRATICULE .................................... -1
GROUNDING .................................. -1
SIGNAL CONNECTIONS .............. -1
CONTENTS
Section 3 OPERATORS FAMILIARIZATION (cont)
INPUT COUPLING CAPACITOR
PRECHARGING ............................ -1
OPERATOR’S ADJUSTMENTS ........ -
INTRODUCTION ............................ -
BASELINE TRACE ........................ -
TRACE ROTATION ........................ -
PROBE COMPENSATION ............ -
Section 4 OPERATING PROCED RES
BASIC APPLICATIONS ...................... 4-1
INTRODUCTION ............................ 4-1
INDEX TO BASIC APPLICATION
PROCEDURES .............................. 4-1
VOLTAGE MEASUREMENTS ........ 4-1
TIME MEASUREMENTS .............. 4-4
TELEVISION DISPLAYS ................ 4-8
DELAYED-SWEEP
MAGNIFICATION ............................ 4-9
Section 5 OPTIONS AND ACCESSORIES
INTRODUCTION ............................ 5-1
OPTIONS ........................................ 5-1
INTERNATIONAL POWER CORDS 5-1
STANDARD ACCESSORIES ........ 5-1
OPTIONAL ACCESSORIES .......... 5-1
FRONT PANEL ILL STRATION
CHANGE INFORMATION
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2213A Operators
LIST OF ILL STRATIONS
Figure Page
The 221 A Oscilloscope ....................................................................................................................................... iv
1-1 Maximum input voltage vs frequency derating curve for CH 1 OR X, CH 2 OR Y, and EXT INPUT connectors .. 1-7
1- 2 Physical dimensions of the 221 A Oscilloscope.................................................................................................... 1-8
2- 1 Optional power cords............................................................................................................................................ 2-1
2-2 Fuse holder and power cord connector................................................................................................................ 2-2
2- Power and display controls and indicators and PROBE ADJUST output ........................................................... 2-
2-4 Vertical controls and connectors .......................................................................................................................... 2-4
2-5 Horizontal controls................................................................................................................................................ 2-5
2-6 Trigger controls, connector, and indicator............................................................................................................ 2-6
2- 7 Rear panel connector............................................................................................................................................ 2-7
- 1 Graticule measurement markings.......................................................................................................................... -1
- 2 Probe compensation ............................................................................................................................................ -4
4- 1 Peak-to-peak waveform voltage .......................................................................................................................... 4-2
4-2 Instantaneous voltage measurement.................................................................................................................... 4-
4- Common-mode rejection ...................................................................................................................................... 4-4
4-4 Voltage ratios........................................................................................................................................................ 4-4
4-5 Time Duration........................................................................................................................................................ 4-5
4-6 Rise Tim e.............................................................................................................................................................. 4'6
4-7 Time difference between pulses on time related signals....................................................................................... 4-6
4-8 Phase difference.................................................................................................................................................... 4~7
4-9 High-resolution phase difference .......................................................................................................................... 4-8
4-10 Delayed-sweep magnification................................................................................................................................ 4-9
LIST OF TABLES
Table Page
1-1 Electrical Characteristics........................................................................................................................................ 1-2
1-2 Environmental Characteristics...............................................................................................................................
1- Physical Characteristics........................................................................................................................................ 1"7
2- 1 VERT MODE Trigger Source................................................................................................................................ 2-7

12213A Operators
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OPERATORS SAFETY S MMARY
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.
Terms as Marked on Equipment
CAUTION indicates a personal injury hazard not immedi
ately 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
A cautionary or other information is to be found.
For maximum input voltage see Table 1-1.
Symbols As Marked on Equipment
A
DANGER — High voltage.
Protective ground (earth) terminal.
ATTENTION — Refer to manual.
LvJ
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.
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 receptacle before connecting 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.
Danger Arising From Loss of Ground
Upon loss of the protective-ground connection, all accessi
ble conductive parts (including knobs and controls that may
appear to be insulating) can render an electric shock.
se 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 2-1.
se 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 explo
sive atmosphere unless it has been specifically certified 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.
m

221 A Operators
The 221 A Oscilloscope.
IV

Section 1—221 A Operators
1
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GENERAL INFORMATION
INTROD CTION
The TEKTRONIX 221 A 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 supplies calibrated deflec
tion factors from 2 mV per division to 5 V per division.
Trigger circuits enable stable triggering over the full band
width 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 XI0 magni
fier circuit extends the maximum sweep speed to 5 ns per
division when the SEC/DIV switch is set to 0.05 fis per
division.
The instrument is shipped with the following standard
accessories:
1 Operators manual 2 Probe packages
1 Power cord
For part numbers and information about instrument ac
cessories, refer to the “Options and Accessories” section of
this manual.
The service manual and all other optional accessories are
orderable from Tektronix, Inc. A local Tektronix Field Office,
representative, or the Tektronix product catalog can provide
ordering and product information.
SPECIFICATION
The following electrical characteristics (Table 1-1) are
valid for the 221 A when it has been adjusted at an ambient
temperature between +20°C and + 0°C, has had a warm
up period of at least 20 minutes, and is operating at an
ambient temperature between 0°C and +50°C (unless oth
erwise noted).
Items listed in the “Performance Requirements” column
are verifiable qualitative or quantitative limits, while items
listed in the “Supplemental Information” column are either
explanatory notes, calibration setup descriptions, perfor
mance characteristics for which no absolute limits are speci
fied, or characteristics that are impractical to check.
Environmental characteristics are given in Table 1-2. The
221 A meets the requirements of MIL-T-28800C, para
graphs 4.5.5.1. , 4.5.5.1.4, and 4.5.5.1.2.2 for type III,
Class 5 equipment, except where otherwise noted.
Physical characteristics of the instrument are listed in
Table 1- .
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General Information—2213A Operators
Table 1-1
Electrical Characteristics
Characteristics Performance Requirements Supplemental Information
VERTICAL DEFLECTION SYSTEM
Deflection Factor
Range 2 mV per division to 5 V per division
in a 1-2-5 sequence.
5 mV per division to 5 V per division
gain is adjusted with VOLTS/DIV switch
set to 10 mV per division.
2 mV per division gain is adjusted
with VOLTS/DIV switch set to 2 mV
per division.
Accuracy ± %
Range of VOLTS/DIV Variable Control Continuously variable between
settings. Increases deflection factor
by at least 2.5 to 1.
Step Response Rise Time Rise time is calculated from the formula:
Rise Time 0. 5
0°C to + 5°C Bandwidth (— dB)
5 mV per Division to 5 V per
Division 5.8 ns or less.
0°C to 50°C
2 mV per Division to 5 V per
Division 7.0 ns or less.
Bandwidth (— dB)
0°C to + 5°C
2 mV per Division Dc to at least 50 MHz.
Measured with a vertically centered
6-division reference signal from a 50 Q
source driving a 50 (1 coaxial cable
that is terminated in 50 fl, both at
the input connector and at the probe
input, with the VOLTS/DIV Variable
control in the CAL detent.
5 mV per Division to 5 V per
Division Dc to at least 60 MHz.
0°C to +50°C
2 mV per Division to 5 V per
Division Dc to at least 50 MHz.
AC Coupled Lower Limit 10 Hz or less at - dB.
Bandwidth Limiter Upper limits (- dB) bandpass at
10 MHz ±15%.
Chop Mode Switching Rate 500 kHz ± 0%.
Input Characteristics
Resistance 1 Mfl ±2%.
Capacitance 20 pF ±2 pF.
Maximum Safe Input Voltage 2 ^ ^
DC Coupled 400 V (dc + peak ac) or 800 V ac p-p
to 10 kHz or less.
See Figure 1 -1 for derating curve.
AC Coupled 400 V (dc + peak ac) or 800 V-ac p-p
to 10 kHz or less.
1-2 REV MAR 1984
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General Information—2213A Operators
1
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Table 1-1 (cont)
Characteristics Performance Requirements Supplemental Information
VERTICAL DEFLECTION SYSTEM (cont)
Common-Mode Rejection Ratio
(CMRR) At least 20 to 1 at 25 MHz. Checked at 10 mV per division for
common-mode signals of 6 divisions or
less with VOLTS/DIV Variable control
adjusted for best CMRR at 50 kHz.
Trace Shift with Attenuator Rotation 0.75 division or less. VOLTS/DIV Variable control in CAL
detent.
Trace Shift as VOLTS/DIV
Variable Control is Rotated 1.0 division or less.
Trace Shift with Invert 1.5 division or less.
Channel Isolation Greater than 100 to 1 at 25 MHz.
TRIGGER SYSTEM
TRIGGER Sensitivity
P-P AUTO/TV LINE and NORM
Modes
Internal
External trigger signal from a 50 Q
source driving a 50 Q coaxial cable
terminated in 50 Q at the input connector.
5 MHz 60 MHz
0. div 1.0 div
External 40 mV 150 mV
Lowest Useable Frequency in P-P
AUTO Mode 20 Hz with 1.0 division internal
or 100 mV external.
TV FIELD Mode 1.0 division of composite sync.
EXT INPUT
Maximum Input Voltage 400 V (dc + peak ac) or 800 V ac p-p
at 10 kHz or less. See Figure 1 -1 for derating curve.
Input Resistance 1 Mfl ±2%.
Input Capacitance 20 pF ±2.5 pF.
AC Coupled 10 Hz or less at lower - dB point.
LEVEL Control Range (NORM)
INT Can be set to any point of the trace
that can be displayed.
EXT, DC At least ± 1.6 V, .2 V p-p.
EXT, DC -=- 10 At least ± 16 V, 2 V p-p.
VAR HOLDOFF Control Increases Sweep holdoff time by at
least a factor of 10.
u
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General Information—2213A Operators
Table 1-1 (cont)
Characteristics Performance Requirements Supplemental Information
HORIZONTAL DEFLECTION SYSTEM
Sweep Rate 0.5 s per division to 0.05 ns per
division in a 1-2-5 sequence. X I0
magnifier extends maximum sweep
speed to 5 ns per division.
Accuracy nmagnified Magnified Sweep accuracy applies over the
center 8 divisions. Exclude the first
25 ns of the sweep for magnified
sweep speeds and anything beyond
the 100th magnified division.
+ 15°C to + 5°C ± % ±4%
0°C to +50°C ±4% ±5%
POSITION Control Range Start of sweep to 10th division in XI or
100th divisions in XI0 will position past
the center vertical graticule line.
Sweep Linearity ±7%. Linearity measured over any 2 of the
center 8 divisions. With magnifier in XI0,
exclude the first 25 ns and anything past
the 100th division.
Variable Control Range Continuously variable between
calibrated settings. Extends the sweep
speed by at least a factor of 2.5.
Delay Time
Delay Positions Minimum less than 1.0 ns 20 vs and
0.4 ms.
MULTIPLIER Increases delay time by at least a
factor of 50.
Jitter One part or less in 10,000 (0.01%) of
the maximum available delay time.
X-Y OPERATION (XI MAGNIFICATION)
Deflection Factory Same as Vertical Deflection System
(with VOLTS/DIV Variable controls in
CAL detent).
Accuracy
X-Axis ±4%.
Measured with a dc-coupled, 5-division
reference signal.
Y-Axis Same as Vertical Deflection System.
Bandwidth (- dB )
X-Axis Dc to at least 2 MHz.
Measured with a 5-division
reference signal.
Y-Axis Same as Vertical Deflection System.
Phase Difference Between X- and
Y-Axis Amplifiers ± ° from dc to 100 kHz. With dc-coupled inputs.
1-4 REV DEC 198

General Information—221 A Operators
Table 1-1 (cont)
Characteristics Performance Requirements Supplemental Information
PROBE ADJUST
Output Voltage of PROBE ADJUST
Jack 0.5 V ±5%.
Repetition Rate 1 kHz ±20%.
Z-AXIS INPUT
Sensitivity 5 V causes noticeable modulation.
Positive-going input decreases
intensity.
Useable frequency range is
dcto 10 MHz.
Maximum Safe Input Voltage 0 V (dc + peak ac) or 0 VC p-p ac at
1 kHz or less.
Input Resistance lOkfl ±10%.
POWER SOURCE
Line Voltage Ranges 90 V to 250 V.
Line Frequency 48 Hz to 440 Hz.
Maximum Power Consumption 40 W (70 VA).
Line Fuse 1.0 A, 250 V, slow-blow.
CATHODE-RAY TUBE
Display Area 80 by 100 mm.
Standard Phosphor P 1.
Nominal Accelerating Voltage 14 kV.
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