Tektronix 2212 User manual

User Manual
Tektronix
/
2212
Digital Storage & Analog Oscilloscope
070-8438-00
Please check for CHANGE INFORMATION
at the rear of this manual.
First Printing April 1992
Rev. July 1992
Rev. December 1992

INSTRUMENT SERIAL NUMBERS
Each instrument has a serial number on a panel insert, tag, or stamped on
the chassis. The first letter in the serial number designates the country of
manufacture. The last five digits of the serial number are assigned
sequentially and are unique to each instrument.Those manufactured in
the United States have six unique digits. The country of manufacture is
identified as follows:
B000000
J300000
H700000
HK00000
Tektronix, Inc., Beaverton, Oregon, U.S.A.
Sony I Tektronix, Japan
Tektronix Holland, N.V., Heerenveen, The Netherlands
Tektronix, Inc., Hong Kong
Instruments manufactured for Tektronix by external vendors outside the
United States are assigned a two digit alpha code to identify the country
of manufacture (e.g., J3 for Japan, HK for Hong Kong, IL for Israel, etc.).
Tektronix, Inc. , P.O. Box 500, Beaverton, OR 97077.
Printed and produced in The Netherlands.
Copyright© Tektronix, Inc.1992. All rights reserved. Tektronix products
are covered by U.S. and foreign patents, issued and pending. The
following are registered trademarks: TEKTRONIX, TEK, TEKPROBE,
SCOPE-MOBILE.

WARRANTY
Tektronix warrants that this product will be free from defects in materials
and workmanship for a period of three (3) years from the date of shipment.
If any such product proves defective during this warranty period, Tektronix,
at its option, either will repair the defective product without charge for parts
and labor, or will provide a replacement in exchange for the defective
product.
In order to obtain service under this warranty, Customer must notify
Tektronix of the defect before the expiration of the warranty period and
make suitable arrangements for the performance of the service. Customer
shall be responsible for packaging and shipping of the defective product to
the service center designated by Tektronix, with shipping charges prepaid.
Tektronix shall pay for the return of the product to Customer if shipment is
to a location within the country in which the Tektronix service center is
located. Customer shall be responsible for paying all shipping charges,
duties, taxes, and any other charges for products returned to any other
locations.
This warranty shall not apply to any defect, failure or damage caused by
improper use or improper or inadequate maintenance and care. Tektronix
shall not be obligated to furnish service under this warranty a) to repair
damage resulting from attempts by personnel other than Tektronix repre-
sentatives to install, repair or service the product; b) to repair damage
resulting from improper use or connection to incompatible equipment; or c)
to service a product that has been modified or integrated with other products
when the effect of such modification or integration increases the time or
difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS
PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IM-
PLIED. TEKTRONX AND ITS VENDORS DISCLAIM ANY IMPLIED WAR-
RANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. TEKTRONIX' RESPONSIBILITY TO REP AIR OR REPLACE
DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PRO-
VIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAM-
AGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VEN-
DOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.

I,

Certificate of the Manufacturer/Importer
We hereby certify that the
-------------
2212 OSCILLOSCOPE AND ALL INSTALLED OPTIONS
complies with the RF interference Suppression requirements of
Amtsbl.-Vfg 1046/1984.
The German Postal Service was notified that the equipment is
being marketed.
The German Postal Service has the right to re-test the series and
to verify that it complies.
TEKTRONIX
Bescheinigung des Herstellers/lmporteurs
Hiermit wird bescheinigt, daB der/die/das
--------
2212 OSCILLOSCOPE AND ALL INSTALLED OPTIONS
in Obereinstimmung mit den Bestimmungen der Ambtsblatt-
Verfugung 1046/1984 funkentst6rt ist.
Der Deutschen Bundespost wurde das lnverkehrbringen dieses
Gerates angezeigt und die Berechtigung zur Oberprufung der
Serie auf Einhalten der Bestimmungen eingeraumt.
TEKTRONIX

NOTICE to the user/operator:
The German Postal Services requires that Systems as-
sembled by the operator/user of this instrument must also
comply with Postal Regulation, Vfg. 1046/1984, Par. 2,
Sect. 1.
HINWEIS fur den Benutzer/Betreiber:
Die vom Betreiber zusammengestellte Anlage, innerhalb
derer das Gerat eingesetzt wird, muB ebenfalls den
Voraussetzungen nach Par. 2, Ziff. 1 der Vfg. 1046/1984
genugen.
NOTICE to the user/operator:
The German Postal Services requires that this equipment,
when used in a test set-up, may only be operated if the
requirements of Postal Regulation, Vfg. 1046/1984, Par.2,
Sect. 1.7.1 are complied with.
HINWEIS fur den Benutzer/Betreiber:
Das Gerat dart in MeBaufstellung nur betrieben werden,
wenn die Voraussetzungen des Par. 2, Ziff. 1.7.1 der Vfg.
1046/1984 eingehalten werden.

Welcome
This manual contains the following sections:
• Overview describes the 2212 Oscilloscope and provides
Safety information and Start-up information.
• Tutorial: Measuring Signals provides information and
instructions to get you started making non-storage
measuremens and storage measurements.
• Measurement Examples
• At A Glance describes the locations and purposes of the
various function blocks on the front panel and the rear panel
of the instrument.
• In Detail provides further detail on aspects of the 2212,
building on the infomation contained in At A Glance. The
topics of this chapter are:
2212 User Manual
General
The Display
Vertical Operation
Horizontal Operation
Trigger
Cursors
Storage
Setup
Making Hardcopies
Power
Interfaces
CRT Readout Display
Probes
Maintenance and Repair
i

 




 


pp

  


Related Documentation
ii
 
•
•
•

 




 



Welcome

Contents
Welcome ....................................................................................i
Related Documentation .....................................................ii
Contents .................................................................................. iii
List of Illustrations ..................................................................x
List of Tables ...........................................................................xi
Overview
Product Description ..............................................................1-1
Safety .....................................................................................1-2
Symbols and Terms ................................................... 1-2
Specific Precautions .................................................. 1-3
Consignes de Securite ..................................................... 1-5
Preparation for Use ..............................................................1-7
Tutorial: Measuring Signals
Initial Setup .......................................................................... 2-1
Probe Compensation ....................................................... 2-3
Low-Frequency Compensation ................................. 2-3
Non-Store Displays ............................................................... 2-5
Normal Sweep Display ................................................... 2-6
Magnified Sweep Display ...............................................2-7
Alternating Magnified ....................................................2-7
Sweep Display ................................................................. 2-7
X-Y Display ..................................................................... 2-8
Single Sweep Display ..................................................... 2-9
Digital Storage Displays .....................................................2-11
Store Mode Display .......................................................2-12
2212 User Manual
iii

HOLD Mode Display .....................................................2-13
Single Sweep Display .............................................. 2-15
SGL Sweep Record Mode ........................................ 2-15
SGL Sweep Roll Mode ............................................. 2-17
X-Y Display (Storage Mode) .........................................2-19
Observing Aliases ......................................................... 2-20
Anti-Aliasing ........................................................... 2-22
Measurement Examples
Non-Storage Measurement Examples ...............................3-1
AC Peak-to-Peak Voltage ................................................3-2
Measurement ...................................................................3-2
Voltage Ratio ...................................................................3-4
Measurement ...................................................................3-4
Algebraic Addition Measurement .................................3-6
Common-Mode Rejection Measurement .......................3-8
Rise Time Measurement ..............................................3-10
Frequency Measurement .............................................3-12
Time Difference Measurement Between Two Time-
Related Pulses ............................................................... 3-14
Time Ratio Measurement .............................................3-16
Phase Difference Measurement ...................................3-18
Small-Angle Phase Difference Measurement ..............3-20
Percent Modulation Measurement ..............................3-22
TV Line Signal Measurement .......................................3-24
TV Field Signal Measurement ......................................3-25
Digital Storage Measurement Examples ..........................3-27
Waveform Comparison Measurement ......................... 3-28
Rise Time Measurement in Store Mode ...................... 3-30
At a Glance
At a Glance ...........................................................................4-1
Display Map ....................................................................4-2
Front Panel Map -Storage, Setup
and Cursors Operation ...................................................4-3
Front Panel Map - Vertical System ...............................4-4
Front Panel Map -Triggering and
Horizontal System ...........................................................4-5
Rear Panel Map ...............................................................4-6
iv
Contents

In Detail
General .................................................................................. 5-1
Display .................................................................................. 5-3
Display Controls.............................................................. 5-3
Internal Graticule ....................................................... 5-3
INTENSITY Control ................................................... 5-4
TOGGLE TR/RO Switch .......................................... 5-5
FOCUS Control .......................................................... 5-5
BEAM FIND Switch ................................................... 5-5
POWER ON/OFF Switch ........................................... 5-5
Trace Rotation Adjustment ........................................... 5-6
Vertical Operation ................................................................5-7
•Vertical Non-Store (Analog) display mode ............ 5-7
•Vertical Store (Digital) display mode ..................... 5-8
Vertical Controls and Connectors .................................. 5-9
Channel 1 Vertical POSITION Control ..................... 5-9
Channel 2 Vertical POSITION Control ..................... 5-9
Vertical MODE Switch .............................................. 5-9
CH 2 INVERT Switch .............................................. 5-10
VOLTS/DIV Switches .............................................. 5-11
AC-GND-DC Input Coupling Switches .................. 5-11
VARiable VOLTS/DIV (VAR) Controls ................... 5-12
Band-Width Limit Switch ....................................... 5-12
CH 1 OR X and CH 2 ORY Input Connectors ........ 5-13
Horizontal Operation ......................................................... 5-15
Horizontal Controls and Switches ............................... 5-16
Horizontal POSITION Control ................................ 5-16
TRACE SEParation (TRACE SEP) Control .............. 5-17
SEC/DIV Switch ....................................................... 5-18
Xl, X10, X50 Magnify Switch ................................. 5-19
Variable SEC/DIV (VAR) control ............................ 5-19
GND Connector ........................................................ 5-20
PROBE ADJUST Connector ..................................... 5-20
Trigger ................................................................................. 5-21
Trigger Controls and Connector.................................. 5-22
Trigger LEVEL Control ............................................ 5-22
TRIG'D Indicator ...................................................... 5-22
Trigger SLOPE Switch ............................................. 5-22
HOLDOFF Control ................................................... 5-23
RESET switch .......................................................... 5-23
2212 User Manual V

READY Indicator ..................................................... 5-24
Trigger MODE Switch ............................................ 5-24
Trigger SOURCE Switch .......................................... 5-25
EXT=Z Switch ......................................................... 5-26
EXT INPUT OR Z Input Connector ......................... 5-26
Trigger COUPLING Switch ..................................... 5-27
Cursors ................................................................................ 5-29
Cursor Control Functions ........................................5-30
Cursor ON Switch .................................................... 5-30
Cursor POSITION Control ....................................... 5-31
TOGGLE CURSOR Switch ......................................5-31
iW1 I iW2 / LlT I 1/LlT Cursor
Measurement Mode Switch .......................................... 5-31
LlV1, LlV2, LlV, iWX, LlVY and RATIO
Cursor Functions...........................................................5-32
Ll Vl Cursor Function ............................................... 5-32
Ll V2 Cursor Function ............................................... 5-32
Ll V Cursor Function ................................................. 5-32
RATIO (LlVl, LlV2, i'lV) Function ............................ 5-33
Ll VX Cursor Function .............................................. 5-33
Ll VY Cursor Function .............................................. 5-33
LlT and RATIO Cursor Function ................................. 5-35
LlT Function ............................................................. 5-35
RATIO (i'lT) Function .............................................. 5-35
1/LlT and PHASE Cursor Function ...............................5-36
1/ Ll T Function .......................................................... 5-36
PHASE ( 1/ Ll T) Function .......................................... 5-36
Storage.................................................................................5-37
Storage Controls ....................................................... 5-38
Store ON Switch ...................................................... 5-38
PRETRIG Switch ..................................................... 5-38
HOLD ON/OFF Switch ............................................ 5-38
RECALL Reference Switch ...................................... 5-39
SA VE Reference Switch ......................................... 5-39
Print Screen (PRNSCR) Function ............................ 5-40
Setup .................................................................................... 5-41
SETUP Controls ....................................................... 5-42
AUTO Setup Switch ................................................ 5-42
SAVE Setup Switch ................................................ 5-43
RECALL Setup Switch ............................................ 5-43
MENU Types ............................................................ 5-43
vi Contents

Making Hardcopies ............................................................5-45
Size or Number of Pens ........................................... 5-46
Graticule On .............................................................5-47
Minor Divisions On .................................................5-47
User Text On ........................................................... 5-47
Textstring ................................................................. 5-47
Power ...................................................................................5-49
Fuse Holder .............................................................. 5-50
Power Cord Receptacle ............................................ 5-50
Interfaces.............................................................................5-51
External ClocK Input (EXT CLK) ............................ 5-52
Serial Communications (RS-232-C) Interface
Connector (Option 12) ............................................. 5-53
RS-232-C Menu ........................................................ 5-54
GPIB (IEEE STD 488.2 1987) -Interface
Connector ................................................................. 5-55
GPIB Menu ............................................................... 5-55
Parallel Printer Interface Connector ....................... 5-58
CRT Readout .......................................................................5-61
Top Row Readouts ........................................................5-63
Cursor Type ............................................................. 5-63
Cursor Delta Value ................................................... 5-63
Trigger ...................................................................... 5-64
Trigger Value ........................................................... 5-64
Trigger Source .......................................................... 5-64
Bottom Row Readouts .................................................. 5-65
CH 1 Vertical Deflection .......................................... 5-65
ADD .......................................................................... 5-65
CH 2 Vertical Deflection ......................................... 5-65
Horizontal Deflection .............................................. 5-66
Acquisition Mode .................................................... 5-66
ADDR ....................................................................... 5-66
REM .......................................................................... 5-66
Probes ..................................................................................5-67
Passive Voltage Probes .................................................5-68
General Purpose (High Input Resistance) Probes ... 5-68
High Voltage Probes ................................................ 5-68
Active Voltage Probes ................................................... 5-69
Current Probes ..............................................................5-70
Differential Probes ........................................................5-71
Ground Lead Inductance ......................................... 5-73
2212 User Manual
vii

Misadjustment of Probes .............................................5-74
Maintenance and Repair ..............................................5-75
Repackaging for Shipment ........................................... 5-76
Appendix A: Options &
Accessories
Options & Accessories .........................................................A-1
Standard Accessories.....................................................A-2
Options............................................................................A-2
Options Al -A5 International Power Cords ..........A-2
Option 3R Rackmounted Instrument .......................A-3
Option 10 (GPIB) .......................................................A-4
Option 12 (RS-232-C) ................................................A-4
Option 02 ..................................................................A-4
Option 1K ..................................................................A-4
Option 1T .................................................................. A-4
Option 18 ..................................................................A-4
Option 23 ..................................................................A-4
Optional Accessories .....................................................A-5
Instrument Enhancements ........................................A-5
Viewing Hoods ..........................................................A-5
Fuses .......................................................................... A-5
Voltage Probes ...........................................................A-5
Current Probes .......................................................... A-6
Oscilloscope Cameras ...............................................A-6
Appendix B: Specifications
General Product Description ...............................................B-1
User Interface .................................................................B-1
Indicators ...................................................................B-1
Signal Acquisition System .............................................B-2
Vertical Non-Storage Deflection System .......................B-4
Horizontal Display System ............................................B-5
Horizontal Non-Storage Display System .................. B-5
Horizontal Storage Display System .......................... B-5
Triggering System ...........................................................B-7
Setup ...............................................................................B-7
Cursor ..............................................................................B-8
Storage and 1/0 ...............................................................B-9
Display ..........................................................................B-10
viii
Contents

Nominal Traits ...................................................................B-11
Warranted Characteristics ................................................B-15
Performance Conditions ...............................................B-15
Typical Characteristics ......................................................B-29
Appendix C: Performance Verification
Performance Tests ................................................................C-1
Conventions ....................................................................C-1
Initial Setup Procedure ..................................................C-2
Test Equipment Required ...............................................C-2
Preparation .....................................................................C-6
Limits and Tolerances ....................................................C-6
Index to Performance Tests ...........................................C-7
Vertical Checks ...............................................................C-8
Horizontal Checks ........................................................C-13
Triggering Checks .........................................................C-18
Probe Adjust Check ......................................................C-26
X-Y Display Checks ......................................................C-27
Appendix D: Control Settings at Power up
Default Control Settings.......................................................D-1
Appendix E: Glossary & Index
Change Information
2212 User Manual
ix

List of Illustrations
Figure 2-1: Probe Compensation .............................................. 2-4
Figure 2-2: Aliasing .................................................................. 2-20
Figure 3-1: P-P Voltage Waveform Measurement ................... 3-2
Figure 3-2: Voltage Ratios ........................................................ 3-4
Figure 3-3: Algebraic Addition of a DC+ AC Signal ............. 3-7
Figure 3-4: Common Mode Rjection Measurement ................ 3-8
Figure 3-5: Risetime Measurement .......................................... 3-10
Figure 3-6: Frequency Measurement ....................................... 3-12
Figure 3-7: Time Difference Measurement ............................. 3-14
Figure 3-8: Time Ratio Measurement ...................................... 3-16
Figure 3-9: Phase Difference Measurement ............................ 3-18
Figure 3-10: Small-Angle Phase Difference Measurement .... 3-20
Figure 3-11: Percentage Modulation ....................................... 3-22
Figure 3-12: Waveform Comparison Neasurement ................ 3-28
Figure 5-1: Power, Display Controls and Power Indicator .... 5-4
Figure 5-2: Vertical Controls and Connectors .......................5-8
Figure 5-3: Horizontal Controls and Switches ....................... 5-16
Figure 5-4: Trigger Controls and Connector ........................... 5-21
Figure 5-5: Cursor Controls ...................................................... 5-30
Figure 5-6: Storage Controls ..................................................... 5-37
Figure 5-7: SETUP Controls ..................................................... 5-42
Figure 5-8: Hardcopy Menu Settings ....................................... 5-45
Figure 5-9: Rear Panel (Partial) ................................................ 5-49
Figure 5-8a: RS-232-C Menu Settings ...................................... 5-54
Figure 5-8b: GPIB Menu Settings ............................................. 5-57
Figure 5-10: CRT Readout Display ..........................................5-62
Figure B-1: Max. Voltage Versus Freq. Derating Curve
for the EXT CLK Connector .................................. B-21
Figure B-2: Max. Voltage Versus Freq. Derating Curve
for the CH 1 OR X, CH 2 ORY, and EXT OR Z
Connectors ............................................................. B-21
X
Contents

List of Tables
Table 5-1: Probe Coding ............................................................... 5-11
Table 5-2: Storage Modes ............................................................. 5-19
Table 5-3: Voltage Cursor Function Readout ............................. 5-34
Table 5-4: Time/Frequency Cursor Function Readouts ............ 5-36
Table 5-5: RS-232-C DTE Connector ........................................... 5-53
Table 5-6: GPIB Connector .......................................................... 5-56
Table 5-7: Parallel Printer Interface Connector ......................... 5-59
Table 5-8: Summary of Tektronix Measurement Probes ........... 5-72
Table A-1: Standard Accessories ................................................ A-2
Table A-2: Power Cord Options .................................................. A-3
Table B-1: Nominal Traits: Vertical System ............................... B-11
Table B-2: Nominal Traits: Horizontal System .......................... B-12
Table B-3: Nominal Traits: Triggering System ........................... B-12
Table B-4: Nominal Traits: Display System ............................... B-13
Table B-5: Nominal Traits: interfaces, Output Ports, Fuse ....... B-13
Table B-6: Nominal Traits: Mechanical.. .................................... B-14
Table B-7: Warranted Characteristics: Vertical System ............ B-16
Table B-8: Warranted Characteristics: Horizontal System ........ B-17
Table B-9: Warranted Characteristics: Triggering System ........ B-18
Table B-10: Warranted Characteristics: Storage System ........... B-22
Table B-11: Warranted Characteristics: Readout Display
System ....................................................................... B-23
Table B-12: Warranted Characteristics: X-Y Display System ... B-25
Table B-13: Warranted Characteristics: Probe Adjust Output .. B-26
Table B-14: Warranted Characteristics: Power Requirements .. B-26
Table B-15: Warranted Characteristics: Environmental Safety
and Reliability .......................................................... B-27
Table B-16: Typical Characteristics: Vertical System ............... B-30
Table B-17: Typical Characteristics: Horizontal System ........... B-32
Table B-18: Typical Characteristics: Triggering System ........... B-33
Table B-19: Typical Characteristics: Z-Axis System ................. B-33
Table C-1: Test equipment Required .......................................... C-3
Table C-2: Deflection Accuracy Limits ....................................... C-11
Table C-3: Settings for Timing Accuracy Checks ...................... C-17
Table C-4: Swtch Combinations for Triggering Checks .............C-20
Table D-1: Default Control Settings ............................................D-1
2212 User Manual
xi

xii
Contents

Product Description
The Tektronix 2212 oscilloscope is a combination digital stor-
age/analog (non-storage), dual-channel oscilloscope, with a
microprocessor-based operating system controling most instru-
ment functions.
This portable oscilloscope provides a Parallel Printer Commu-
nication Interface to communicate with Centronics ® compat-
ible printers/plotters in Storage mode. A General Purpose Inter-
face Bus (GPIB) and an RS-232-C interface are optional.
Instrument features include:
• DC to 60 MHz Analog (non-storage) bandwidth
• DC to 10 MHz digital (storage) bandwidth
• Auto Set-up
• Horizontal alternate magnifier
• CRT readout
• Cursor measurement display.
• Parallel Printer Communication Interface
(Centronics ® compatible).
• RS-232-C Communication Control (optional).
• IEEE 488.2-1987 (GPIB) Communication Interface
(optional).
If you need more information about your 2212 Oscilloscope or
other Tektronix products, please contact your nearest
Tektronix sales office or distributor, consult the Tektronix
product catalog, or, in the U.S., call the Tektronix National
Marketing Center toll-free at 1-800-426-2200.
2212 User Manual 1-1

1-2
Safety
Before you begin using your Tektronix 2212, please take a moment
to review these safety precautions. We provide them for your pro-
tection and to prevent damage to the 2212 Oscilloscope. The gen-
eral safety information is for both operating and servicing person-
nel.
I WARNING I
To avoid personal injury or damage to the 2212, do not
apply more than 400V peak between probe tip and earth
ground, between probe tip and probe common, or between
probe common and earth ground.
Symbols and Terms
These two terms appear in manuals:
WARNING.
statements identify conditions or practices that
could result in damage to the equipment or other
property.
statements identify conditions or practices that
could result in personal injury or loss of live.
These two terms appear on equipment:
• CAUTION indicates a personal- injury hazard not immedi
ately accessible as one reads the markings, or a hazard to
property including the instrument itself.
• DANGER indicates a personal-injury hazard immediately as
one reads the markings.
This symbol appears in manuals:
®
Static-Sensitive Devices
Overview