Tektronix TBS1000B Series, TBS1000B-EDU Series User Manual

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TBS1000B and TBS1000B-EDU Series Digital Storage Oscilloscopes

ZZZ

User Manual

*P077088600*

077-0886-00

TBS1000B and TBS1000B-EDU Series Digital Storage Oscilloscopes

ZZZ

User Manual

Revision A

www.tektronix.com

077-0886-00

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specications and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

OpenChoice™ is a registered trademark of Tektronix, Inc.

PictBridge is a registered trademark of the Standard of Camera & Imaging Products Association CIPA DC-001-2003 Digital Photo Solutions for Imaging Devices.

Contacting Tektronix

Tektronix, Inc. 14150 SW Karl Braun Drive P.O . Bo x 50 0 Beaverton, OR 97077 USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200. World w i de, v i sit www.tektronix.com to nd contacts in your area.

TBS1000B and TBS1000B-EDU Oscilloscopes

Warranty

Tektronix war

rants that the product will be free from defects in materials and workmanship for a period of ve (5) years from the date of original purchase from an authorized Tektronix distributor. If the 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. Batteries are excluded from this warranty. Parts, modules and replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.

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 service. Customer shall be responsib

le for packaging and shipping the defective product to the service center designated by Tektronix, shipping charges prepaid, and with a copy of customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the 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 representatives to install, repair or service the product; b) to r

epair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modied or integrated with other products when the effect of such modication or integration increases the time or difculty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AN

D EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

[W19 – 03AUG12]

TPP0051, TPP0101, TPP0201, and P2220 Probes

Warranty

Tek t r o n ix war

rants that the product will be free from defects in materials and workmanship for a period of one (1) year from the date of original purchase from an authorized Tektronix distributor. If the 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. Batteries are excluded from this warranty. Parts, modules and replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.

[W15 – 15AUG04]

Table of Contents

Important safety information..................................................................................... iv

Generalsafety summary ..................................................................................... iv

Service safety summary..................................................................................... vii

Terms in this manual ........................................................................................ viii

Symbolsand terms on theproduct......................................................................... viii

Compliance information.......................................................................................... ix

EMC compliance ............................................................................................. ix

Safety compliance ............................................................................................ xi

Environmental considerations.............................................................................. xiv

Getting Started . . ... . ... . .. . ... . ... . .. . ... . ... ... . ... . .. . . .. . ... . .. . ... . ... . .. . ... . ... . .. . ... . ... . .. . ... . ... ... . ... . . 1

General Features............................................................................................... 1

Installation...................................................................................................... 2

Functional Check .............................................................................................. 4

ProbeSafety.................................................................................................... 5

Manual Probe Compensation................................................................................. 6

Probe Attenuation Setting.. ... . ... . .. . ... . .. . ... . .. . . .. . ... . .. . ... . .. . ... . ... . .. . ... . .. . ... . ... ... . ... . .. . ... . 6

CurrentProbe Scaling......................................................................................... 7

Self Calibration ................................................................................................ 7

Firmware Updates Through theInternet .................................................................... 8

Operating Basics.................................................................................................... 9

DisplayArea ................................................................................................... 9

Usingthe Menu System...................................................................................... 11

VerticalControls .............................................................................................. 11

Horizontal Controls........................................................................................... 12

Trigger Controls............................................................................................... 13

Menu and ControlButtons................................................................................... 13

Input Connectors.............................................................................................. 15

Other Front-Panel Items...................................................................................... 16

Understanding Oscilloscope Functions . .. . ... . ... ... . ... . .. . ... . ... ... . ... . .. . ... . .. . ... . .. . . .. . ... . .. . ... . .. . . 17

Setting Up the Oscilloscope ... . ... ... . ... . .. . ... . ... ... . ... . .. . ... . ... ... . ... . .. . ... . ... ... . ... . .. . ... . ... .. 17

Triggering...................................................................................................... 18

Acquiring Signals............................................................................................. 20

Scaling and Positioning Waveforms .. .. . ... . ... . ... ... . ... . .. . . .. . ... . ... . .. . ... . ... . .. . ... . ... . ... ... . ... . 21

Taking Measurements........................................................................................ 23

ApplicationExamples............................................................................................. 25

Taking Simple Measurements ............................................................................... 26

UsingAutorange to Examine a Series of TestPoints ..................................................... 30

Taking Cursor Measurements ............................................................................... 30

Analyzing Signal Detail...................................................................................... 34

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual i

Table of Contents

Capturing a Sin

gle-Shot Signal ............................................................................. 36

Measuring Propagation Delay............................................................................... 38

Triggering on a Specic Pulse Width... . .. . ... . .. . ... . .. . ... . .. . ... . .. . ... . .. . ... . ... ... . .. . ... . ... ... . .. . . 39

Triggering on a Video Signal ................................................................................ 41

Analyzing a Differential Communication Signal.......................................................... 44

Viewing Impedance Changes in a Network................................................................ 46

Data Logging (non-EDUmodels only)..................................................................... 48

LimitTesting (non-EDU models only) ..................................................................... 49

FFT.................................................................................................................. 51

Setting Up the Time-Domain Waveform.. . .. . . .. . ... . .. . ... . ... . .. . ... . ... ... . ... . .. . ... . ... . .. . ... . .. . . .. 51

Displaying the FFT Spectrum ............................................................................... 53

Selecting an FFT Window ................................................................................... 54

Magnifying and Positioning an FFT Spectrum . . .. . ... . .. . ... . .. . . .. . ... . .. . ... . ... . .. . ... . ... ... . ... . .. . . 57

Measuring an FFT Spectrum Using Cursors............................................................... 58

USB Flash Drive and Device Ports.............................................................................. 59

USB Flash Drive Port ........................................................................................ 59

File Management Conventions.............................................................................. 60

Saving and Recalling Files With a USB Flash Drive ... ... . ... . .. . ... . .. . ... . ... . .. . ... . .. . ... . .. . . .. . ... 61

Using the Save Functionof the Front-PanelSave Button................................................ 63

USB DevicePort.............................................................................................. 65

Installing the PC Communications Software on a PC .. .. . ... . .. . ... . ... . .. . ... . ... ... . ... . .. . ... . ... . .. . 65

Connecting to a PC........................................................................................... 66

Connecting to a GPIB System............................................................................... 67

CommandEntry............................................................................................... 68

Reference........................................................................................................... 69

Acquire......................................................................................................... 69

Autorange...................................................................................................... 71

Autoset ......................................................................................................... 73

Counter......................................................................................................... 76

Course (EDU models only).................................................................................. 77

Cursor.......................................................................................................... 79

Default Setup.................................................................................................. 81

Display......................................................................................................... 81

FFT............................................................................................................. 83

Function........................................................................................................ 83

Help ............................................................................................................ 85

Horizontal...................................................................................................... 85

Math............................................................................................................ 85

Measure........................................................................................................ 86

MeasurementGating ......................................................................................... 90

Menu Off ...................................................................................................... 91

ii TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Table of Contents

Print-Ready Sc

reenshots ..................................................................................... 91

Reference Menu............................................................................................... 91

Save/Recall .................................................................................................... 92

TrendPlot (non-EDU modelsonly) ........................................................................ 96

Trigger Controls............................................................................................... 96

Utility . ... . .. . ... . .. . ... . ... ... . ... . .. . ... . .. . ... . .. . ... . ... ... . ... . .. . ... . .. . ... . .. . ... . .. . ... . .. . . .. . ... . .. . 102

Vertical Co

ntrols ............................................................................................ 106

Zoom Controls.............................................................................................. 108

Appendix A: Specications .................................................................................... 109

Oscilloscope Specications.. . ... . ... ... . ... . .. . ... . .. . ... . .. . ... . ... ... . ... . .. . ... . .. . ... . .. . . .. . ... . .. . .. 109

Appendix B: TPP0051, TPP0101 and TPP0201 Series 10X Passive Probes Information . . .. . . .. . ... . . 113

Connecting the Probe to the Oscilloscope ... . ... . .. . ... . .. . ... . .. . ... . .. . ... . .. . ... . .. . ... . .. . ... . .. . ... 113

Compens

ating the Probe .................................................................................. 113

Connecting the Probetothe Circuit ...................................................................... 114

Standard Accessories....................................................................................... 115

Optional Accessories....................................................................................... 116

Specications. . ... . .. . ... . ... ... . ... . .. . ... . ... ... . ... . .. . ... . ... ... . ... . .. . ... . ... ... . ... . .. . ... . ... ... . ... . 116

Performance Graphs........................................................................................ 117

Safe

ty Summary ............................................................................................ 118

Appendix C: Accessories and Options ........................................................................ 121

Appendix D: Cleaning .......................................................................................... 125

GeneralCare ................................................................................................ 125

Cleaning ..................................................................................................... 125

Appendix E: DefaultSetup..................................................................................... 127

pendix F: Font Licenses ..................................................................................... 129

Index

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual iii

Important safety information

Important saf

ety information

This manual c

ontains information and warnings that must be followed by the user

for safe operation and to keep the product in a safe condition.

To safely perform service on this product, additional information is provided at the end of this section. (See page vii, Service safety summary.)

General safety summary

Use the product only as specied. Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Carefully read all instructions. Retain these instructions for future reference.

Comply with local and national safety codes.

For correct and safe operation of the product, it is essential that you follow generally accepted safety procedures in addition to the safety precautions specied in this manual.

The product is designed to be used by trained personnel only.

Only qualied personnel who are aware of the hazards involved should remove the cover for repair, maintenance, or adjustment.

Before use, always check the product with a known source to be sure it is operating correctly.

This product is not intended for detection of hazardous voltages.

Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.

While using this product, you may need to access other parts of a larger system. Read the safety sections of the other component manuals for warnings and cautions related to operating the system.

When incorporating this equipment into a system, the safety of that system is the responsibility of the assembler of the system.

To avoid re or personal

injury

Use proper power cord. Use only the power cord specied for this product and

certied for the country of use.

Do not use the provided power cord for other products.

Ground the product. This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, make sure that the product is properly grounded.

iv TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Important safety information

Do not disable t

he power cord grounding connection.

Power disconnect. The power switch disconnects the product from the power source. See instructions for the location. Do not position the equipment so that it is difcult to disconnect the power switch; it must remain accessible to the user at all times to allow for quick disconnection if needed.

Connect and disconnect properly. Do not connect or disconnect probes or test leads while they are connected to a voltage source.

Use only insulated voltage probes, test leads, and adapters supplied with the product, or indicated by Tektronix to be suitable for the product.

Observe all terminal ratings. To avoid re or shock hazard, observe all ratings and markings on the product. Consult the product manual for further ratings information before making connections to the product. Do not exceed the Measurement Category (CAT) rating and voltage or current rating of the lowest rated individual component of a product, probe, or accessory. Use caution when using 1:1 test leads because the probe tip voltage is directly transmitted to the product.

Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.

Do not oat the common terminal above the rated voltage for that terminal.

Do not operate without covers. Do not operate this product with covers or panels removed, or with the case open. Hazardous voltage exposure is possible.

Avoid exposed circuitry. Do not touch exposed connections and components when power is present.

Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected by qualied service personnel.

Disable the product if it is damaged. Do not use the product if it is damaged or operates incorrectly. If in doubt about safety of the product, turn it off and disconnect the power cord. Clearly mark the product to prevent its further operation.

Before use, inspect voltage probes, test leads, and accessories for mechanical damage and replace when damaged. Do not use probes or test leads if they are damaged, if there is exposed metal, or if a wear indicator shows.

Examine the exterior of the product before you use it. Look for cracks or missing pieces.

Use only specied replacement parts.

Use proper fuse. Use only the fuse type and rating specied for this product.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual v

Important safety information

Wear eye protec

tion. Wear eye protection if exposure to high-intensity rays or

laser radiation exists.

Do not operate in wet/damp conditions. Be aware that condensation may occur if a unit is moved from a cold to a warm environment.

Do not operate in an explosive atmosphere.

Keep product surfaces clean and dry. Remove the input signals before you clean

the product.

Provide proper ventilation. Refer to the installation instructions in the manual for details on installing the product so it has proper ventilation.

Slots and openings are provided for ventilation and should never be covered or otherwise obstructed. Do not push objects into any of the openings.

Provide a safe working environment. Always place the product in a location convenient for viewing the display and indicators.

Avoid improper or prolonged use of keyboards, pointers, and button pads. Improper or prolonged keyboard or pointer use may result in serious injury.

Be sure your work area meets applicable ergonomic standards. Consult with an ergonomics professional to avoid stress injuries.

Probes and test leads

Before connecting probes or test leads, connect the p

ower cord from the power

connector to a properly grounded power outlet.

Keep ngers behind the nger guards on the probes.

Remove all probes, test leads and accessories that are not in use.

Use only correct Measurement Category (CAT), voltage, temperature, altitude, and amperage rated probes, test leads, and adapters for any measurement.

Beware of high voltages. Understand the voltage ratings for the probe you are using and do not exceed those ratings. Two ratings are important to know and understand:

The maximum measurement voltage from the probe tip to the probe reference lead.

The maximum oating voltage from the probe reference lead to earth

ground

These two voltage ratings depend on the probe and your application. Refer to the Specications section of the manual for more information.

WARNING. To prevent electrical shock, do not exceed the maximum measurement

or maximum oating voltage for the oscilloscope input BNC connector, probe tip, or probe reference lead.

vi TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Important safety information

Connect and dis

connect properly. Connect the probe output to the measurement

product before connecting the probe to the circuit under test. Connect the probe reference lead to the circuit under test before connecting the probe input. Disconnect the probe input and the probe reference lead from the circuit under test before disconnecting the probe from the measurement product.

Connect and

disconnect properly. De-energize the circuit under test before

connecting or disconnecting the current probe.

Connect th

e probe reference lead to earth ground only.

Do not connect a current probe to any wire that carries voltages above the current probe vol

tage rating.

Inspect the probe and accessories. Before each use, inspect probe and accessories for damage (cuts, tears, or defects in the probe body, accessories, or cable jacket). Do not use if damaged.

Ground

-referenced oscilloscope use. Do not oat the reference lead of this probe

when using with ground-referenced oscilloscopes. The reference lead must be connected to earth potential (0 V).

Servicesafetysummary

The Service safety summary section contains additional information required to safely perform service on the product. Only qualied personnel should perform service procedures. Read this Service safety summary and the General safety summary before performing any service procedures.

To avoid electric shock. Do not touch exposed connections.

Do not service alone. Do not perform internal service or adjustments of this

product unless another person capable of rendering rst aid and resuscitation is present.

Disconnect power. To avoid electric shock, switch off the product power and disconnect the power cord from the mains power before removing any covers or panels, or opening the case for servicing.

Use care when servicing with power on. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components.

Verify safety after repair. Always recheck ground continuity and mains dielectric strength after performing a repair.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual vii

Important safety information

Termsinthismanual

These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result

in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in

damage to this product or other property.

Symbols and terms on the product

These ter

ms may appear on the product:

DANGER indicates an injury hazard immediately accessible as you read the mark

ing.

WARNING indicates an injury hazard not immediately accessible as you read th

e marking.

CAUTION indicates a hazard to property including the product.

When this symbol is marked on the product, be sure to consult the manual to nd out the nature of the potential hazards and any actions which have to betakentoavoidthem.(Thissymbolmayalsobeusedtorefertheuserto ratings in the manual.)

The following symbol(s) may appear on the product:

viii TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Compliance information

This section lists the EMC (electromagnetic compliance), safety, and environmental standards with which the instrument complies.

EMC compliance

EC Declaration of Conformity – EMC

Meets intent of Directive 2004/108/EC for Electromagnetic Compatibility. Compliance was demonstrated to the following specications as listed in the Ofcial Journal of the European Communities:

EN 61326-1:2006, EN 61326-2-1:2006. EMC requirements for electrical equipment for measurement, control, and laboratory use.

123

CISPR 11:2003. Radiated and conducted emissions, Group 1, Class A

IEC 61000-4-2:2001. Electrostatic discharge immunity

IEC 61000-4-3:2002. RF electromagnetic eld immunity

IEC 61000-4-4:2004. Electrical fast transient/burst immunity

IEC 61000-4-5:2001. Power line surge immunity

IEC 61000-4-6:2003. Conducted RF immunity

IEC 61000-4-11:2004. Voltage dips and interruptions immunity

EN 61000-3-2:A1/A2 2009. AC power line harmonic emissions

EN 61000-3-3:2008. Voltage changes, uctuations, and icker

European contact.

Tektronix UK, Ltd. Western Peninsula Western Road Bra

cknell, RG12 1RF

United Kingdom

EMC compliance

Meets the intent of Directive 2004/108/EC for Electromagnetic Compatibility when it is used with the product(s) stated in the specications table. Refer to the EMC specication published for the stated products. May not meet the intent of the directive if u

sed with other products.

European contact.

Tektronix UK, Ltd. Western Peninsula Western Road Bracknell, RG12 1RF

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual ix

Compliance information

United Kingdom

This product is intended for use in nonresidential areas only. Use in residential areas may cause electromagnetic interference

Emissions which exceed the levels required by this standard may occur when this equipment is connected to a test object.

To ensure compliance with the EMC standards listed here, high quality shielded interface cables should be used.

The instrument will exhibit  3.0 division waveform displacement and 

6.0 division increase in peak-to-peak noise when subjected to radiated

interference

per IEC 61000-4-3.

The instrument will exhibit  2.0 division waveform displacement and 

4.0 division

increase in peak-to-peak noise when subjected to conducted

interference per IEC 61000-4-6.

Performance

Criterion C applied at the 70%/25 cycle Voltage-Dip and the 0%/250 cycle Voltage-Interruption test levels (IEC 61000-4-11). If the instrument powers down upon a voltage dip or interruption, it will take longer than ten seconds to return to the previous operating state.

Australia / New Zealand

Declaration of

Conformity – EMC

Complies wi

th the EMC provision of the Radiocommunications Act per the:

CISPR 11:2003. Radiated and Conducted Emissions, Group 1, Class A, in accordanc

e with EN 61326-1:2006 and EN 61326-2-1:2006.

Australia / New Zealand contact.

Baker & McKenzie Level 27, AMP Centre 50 Bridge Street Sydney NSW 2000, Australia

FCC–EMC

Exempt from FCC 47 CFR, Part 15.

Russian Federation

This p

roduct is approved by the Russian government to carry the GOST mark.

x TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Compliance information

Safety compli

ance

This section lists the safety standards with which the product complies and other safety compliance information.

EU declarati

on of

conformity – low voltage

Compliance was demonstrated to the following specication as listed in the Ofcial Journal of the European Union:

Low Voltage Directive 2006/95/EC.

EN 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements.

EN 61010-2-030. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 2-030: Particular requirements for testing and measuring circuits.

EN 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment.

U.S. na

tionally recognized

testing laboratory listing

UL 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements.

UL 61010-2-030. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 2-030: Particular requirements for testing and measuring circuits.

UL 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment.

nadian certication

CAN/CSA-C22.2 No. 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements.

CAN/CSA-C22.2 No. 61010-2-030. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 2-030: Particular requirements for testing and measuring circuits.

CAN/CSA-C22.2 No. 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual xi

Compliance information

Additional compliances

IEC 61010-1. Sa

fety Requirements for Electrical Equipment for

Measurement, Control, and Laboratory Use – Part 1: General Requirements.

IEC 61010-2-0

30. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 2-030: Particular requirements for testing and measuring circuits.

IEC 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment.

Equipment type

Tes t and me

asuring equipment.

Safety class

Class 1 – grounded product.

Pollution degree

descriptions

A measure of the contaminants that could occur in the environment around and within a product. Typically the internal environment inside a product is considered to be the same as the external. Products should be used only in the environment for which they are rated.

Pollution degree 1. No pollution or only dry, nonconductive pollution occurs. Products in this category are generally encapsulated, hermetically sealed, or locat

ed in clean rooms.

Pollution degree 2. Normally only dry, nonconductive pollution occurs. Occa

sionally a temporary conductivity that is caused by condensation must be expected. This location is a typical ofce/home environment. Temporary condensation occurs only when the product is out of service.

Pollution degree 3. Conductive pollution, or dry, nonconductive pollution that becomes conductive due to condensation. These are sheltered locations where neither temperature nor humidity is controlled. The area is protected from direct sunshine, rain, or direct wind.

Pollution degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor locations.

Pollution degree rating

Pollution degree 2 (as dened in IEC 61010-1). Rated for indoor, dry location use only.

xii TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Compliance information

Measurement and

overvoltage category

descriptions

Measurement te

rminals on this product may be rated for measuring mains voltages from one or more of the following categories (see specic ratings marked on the product and in the manual).

Category II. Circuits directly connected to the building wiring at utilization points (socket outlets and similar points).

Category III. In the building wiring and distribution system.

Category IV

. At the source of the electrical supply to the building.

NOTE. Only mains power supply circuits have an overvoltage category rating.

Only measurement circuits have a measurement category rating. Other circuits within the product do not have either rating.

Mains overvoltage

category rating

Overvoltage category II (as dened in IEC 61010-1).

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual xiii

Compliance information

Environmental considerations

This section provides information about the environmental impact of the product.

Product end-of-life

handling

Observe the f

ollowing guidelines when recycling an instrument or component:

Equipment recycling. Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if improperly handled at the product’s end of life. To avoid release of such substances into the environment and to reduce the

use of natural resources, we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately.

This symbol indicates that this product complies with the applicable European Union re

quirements according to Directives 2002/96/EC and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries. For information about recycling options, check the Support/Service section of the Te kt r on

ixWebsite(www.tektronix.com).

Restriction of hazardous

substances

This pr

oduct is classied as an industrial monitoring and control instrument, and is not required to comply with the substance restrictions of the recast RoHS Directive 2011/65/EU until July 22, 2017.

xiv TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Getting Started

TBS1000B and TBS1000B-EDU Series Digital Storage Oscilloscopes are small, lightweight, benchtop instruments, which you can use to take ground-referenced measurement

This chapter describes how to do the following tasks:

Install your product

Perform a brief functional check

Perform a probe check and compensate probes

Match your probe attenuation factor

Use the self calibration routine

NOTE. You can select a language to display on the screen after you power on

the oscilloscope. At any time, you can access the Utility  Language option to select a language.

General Features

Model Channels Bandwidth Sample rate Display

TBS1052B-EDU

250MHz

1 GS/s Color

TBS1052B

250MHz

1 GS/s Color

TBS1072B-EDU

270MHz

1 GS/s Color

TBS1072B

270MHz

1 GS/s Color

TBS1102B-EDU

2 100 MHz

2 GS/s Color

TBS1102B

2 100 MHz

2 GS/s Color

TBS1152B-EDU

2 150 MHz

2 GS/s Color

TBS1152B

2 150 MHz

2 GS/s Color

TBS1202B-EDU

2 200 MHz

2 GS/s Color

TBS1202B

2 200 MHz

2 GS/s Color

Context-sensitive help system

7-inch color LCD display

Educational courseware integrated in the instrument (EDU models only)

Limit tests, data logging, and trend plots (non-EDU models only)

Dual-channel independent counters

Selectable 20 MHz bandwidth limit

2,500 point record length for each channel

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 1

Getting Started

Autoset

Autoranging

Setup and waveform storage

USB Flash Drive port for le storage

PC communications through the USB Device port with OpenChoice PC Communications software

Connect to a GPIB controller through an optional TEK-USB-488 adapter

Cursors with readouts

Trigger f

requency readout

34 automatic measurements — and measurement gating

Waveform averaging and peak detection

Math functions: +, -, and × operations

Fast Fourier Transform (FFT)

Pulse Width trigger capability

Vid e o

trigger capability with line-selectable triggering

External trigger

Variable persistence display

User interface and help topics in 11 languages

Zoom feature

Installation

Power Cord

Use only the power cord provided with your oscilloscope. Appendix C: Accessories lists the standard and the optional accessories.

Power Source

Use a power source that delivers 90 to 264 VAC

RMS

,45to66Hz. Ifyouhavea

400 Hz power source, it must deliver 90 to 132 VAC

RMS

, 360 to 440 Hz.

The product's maximum power consumption is 30 W.

Security Loop

Use a standard laptop computer security lock, or thread a security cable through the built-in cable channel to secure your oscilloscope to your location.

2 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Getting Started

Security cable channel Security lock hole

Power cord

Ventilation

NOTE. The oscilloscope cools by convection. Keep two inches clear on the sides

and top of the product to allow adequate air ow.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 3

Getting Started

Functional Ch

eck

Perform this functional check to verify that your oscilloscope is operating correctly.

ON/OFF button

1. Power on the oscilloscope.

Push the Default Setup button.

The default

Probe option attenuation setting is

10X.

Default Setup button

PROBE COMP

2. Connect the TPP0051, TPP0101, or TP0201 probe to channel 1 on the oscilloscope. To do this, align th

e slot in the probe connector with the key on the channel 1 BNC, push to connect, and twist to the right to lock the probe in place.

Connec

t the probe tip and reference lead to the

PROBE COMP terminals.

3. Push the Autoset button. Within a few seconds, you should see a square wave in the display of about 5 V peak-to-peak at 1 kHz.

Push the channel 1 menu button on the front panel twice to remove channel 1, push the channel 2 menu button to display channel 2, and repeat steps 2 and 3.

Calibration: PASSED

4. Check that the instruction passed the calibration tests. Push Utility  - more - page 1 of 2 (push more again on EDU models)  System Status  Misc.. Look for Calibration PASSED

4 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Getting Started

Probe Safety

Check and observe probe ratings before using probes.

A guard around the TPP0051, TPP0101, or TPP0201 probe body provides a nger barrier for protection from electric shock.

Finger guard

WARNING. To avoid electric shock when using the probe, keep ngers behind

the guard on the probe body.

To avoid electric shock while using the probe, do not touch metallic portions of the probe head while it is connected to a voltage source.

Connect the probe to the oscilloscope, and connect the ground terminal to ground before you take any measurements.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 5

Getting Started

Manual Probe C

ompensation

You can manually perform this adjustment to match your probe to the input channel.

PROBE COMP

Autoset

button

1. Push the 1  Probe  Vo ltag e  Attenuation option and select 10X. Connect the appropriate TPP0051, TP

P0101, or TPP0201 probe to channel 1 on the oscilloscope. If you use the probe hook-tip, ensure a proper connection by rmly inse

rting the tip onto the probe.

2. Attach the probe tip to the PROBE COMP ~5V@1kHz terminal and the reference lead to the PROBE C

OMP chassis terminal. Display the

channel, and then push the Autoset button.

Overcompensated

Undercompensated

Compensated correctly

3. Check the shape of the displayed waveform.

4. If necessary, adjust your probe.

Repea

t as necessary.

Probe Attenuation Setting

Probes are available with various attenuation factors which affect the vertical scale of the signal.

Select the factor that matches the attenuation of your probe. For example, to match a probe set to 10X connected to CH 1, push the 1  Probe  Volt age  Attenuation option, and select 10X.

NOTE. The default setting for the Attenuation option is 10X.

6 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Getting Started

If you change th

e Attenuation switch on a P2220 probe, you also need to change

the oscilloscope Attenuation option to match. Switch settings are 1X and 10X.

Attenuation switch

NOTE. When the Attenuation switch is set to 1X, the P2220 probe limits the

bandwidth of the oscilloscope to 6 MHz. To use the full bandwidth of the oscilloscope, be sure to set the switch to 10X.

Current P

robe Scaling

Current probes provide a voltage signal proportional to the current. You need to set the oscilloscope to match the scale of your current probe. The default scale is 10 A/V.

For example, to set the scale for a current probe connected to channel 1, push the

1  Prob

e  Current  Scale option, and select an appropriate value.

Self Calibration

The s

elf calibration routine lets you optimize the oscilloscope signal path for maximum measurement accuracy. You can run the routine at any time but you should always run the routine if the ambient temperature changes by 5 °C (9 °F) or more. The routine takes about two minutes.

For accurate calibration, power on the oscilloscope and wait twenty minutes to ensure it is warmed up.

To compensate the signal path, disconnect any probes or cables from the input connectors. Then, access the Utility  Do Self Cal option, and follow the directions on the screen.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 7

Getting Started

Firmware Updates Through the Internet

Update your TBS1000B’s rmware to take advantage of new features and bug xes. You can use the Internet and a USB ash drive to update your oscilloscope. If you do not have access to the Internet, contact Tektronix for information on update procedures.

Check the ve

rsion of your

current rmware

1. Power on the oscilloscope.

2. For the TBDS1000B: Push Utility  - more - page 1 of 2  System Status  Misc..

For the TBDS1000B-EDU: Push Utility  - more - page 1 of 3 - more page 2 of 3  System Status  Misc..

3. The oscilloscope displays the rmware version number.

Check the version of the

latest available rmware

1. Open up a

Webbrowserandgotowww.tektronix.com/software.

2. Enter “TBS1000B” in the search box.

3. Scan the list of available software for the latest TBS1000B rmware. Check

the version number.

If the

latest available

rmware Is newer than that

on your TBS1000B, update

your

product’s rmware

1. Download the latest rmware from www.tektronix.com/software to your PC. Unzip the les, if needed, and copy the designated rmware le into the root folder of a USB ash drive.

2. Insert the USB ash drive into the front-panel USB port on your oscilloscope.

3. Push Utility  - more - page 1 of 2  File Utilities  - more - page 1 of 2  Update Firmware  Update Firmware

It takes several minutes to update the rmware. Your oscilloscope will prompt you when the update is complete. Do not remove the USB ash drive or power off the oscilloscope until the rmware update is complete.

8 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Operating Basics

The front panel is divided into easy-to-use functional areas. This chapter provides you with a quick overview of the controls and the information displayed on the screen.

Display Area

In add

ition to displaying waveforms, the display provides details about the

waveform and the oscilloscope control settings.

NOTE. For details on displaying the FFT function, (See page 53, Displaying

the FFT Spectrum.)

The items shown below may appear in the display. Not all of these items are visible at any given time. Some readouts move outside the graticule area when menus are turned off.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 9

Operating Basics

1. The acquisition readout shows when an acquisition is running or stopped. Icons are:

Run: Acquisition enabled

Stop: Acquisitions not enabled.

2. The trigger position icon shows the trigger position in the acquisition. Turn the Horizontal Posit

ion knob to adjust the position of the marker.

3. The trigger status readout shows:

Armed: The oscilloscope is acquiring pretrigger data. All triggers are ignored in this state.

Ready: All pretrigger data has been acquired and the oscilloscope is ready to accept a trigger.

Trig’d: The oscilloscope has seen a trigger and is acquiring the posttrigger data.

Stop: The oscilloscope has stopped acquiring waveform data.

Acq. Complete: The oscilloscope ha

s completed a Single Sequence

acquisition.

Auto: The oscilloscope is in auto mode and is acquiring waveforms in the absence of trigger.

Scan: The oscilloscope is acquiring and displaying waveform data continuously in scan mode.

4. The center graticule readout shows the time at the center graticule. The trigger time is zero.

5. The trigger level icon shows the Edge or Pulse Width trigger level on the waveform. The icon color corresponds to the trigger source color.

10 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Operating Basics

6. The trigger rea

dout shows the trigger source, level, and frequency. Trigger

readouts for other trigger types show other parameters.

7. The horizonta

l position/scale readout shows the main time base setting (adjust

with the Horizontal Scale knob).

8. The channel

readout shows the vertical scale factor (per division) for each

channel. Adjust with the Vertical Scale knob for each channel.

9. The wavefor

m baseline indicator shows the ground reference points (the zero-volt level) of a waveform (ignoring the effect of offset). The icon colors correspond to the waveform colors. If there is no marker, the channel is not displayed.

Message Area

The oscilloscope displays a message area at the bottom of the screen that conveys the following types of helpful information:

Suggestion of what you might want to do next, such as when you push the Measure button and then the Ch1 button:

Use multipurpose purpose knob to select measurement type

Infor

mation about the action the oscilloscope performed, such as when you

push the Default Setup button:

Defa

ult setup recalled

Using the Menu System

Whe

n you push a front-panel button, the oscilloscope displays the corresponding menu on the right side of the screen. The menu shows the options that are available when you push the unlabeled option buttons directly to the right of the screen.

Vertical Controls

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 11

Operating Basics

Position (1 and

2). Positions a waveform vertically.

1&2Menu. Displays the Vertical menu selections and toggles the display of the

channel waveform on and off.

Scale (1 & 2). Selects vertical scale factors.

Horizontal Controls

Position. Adjusts the horizontal position of all channel and math waveforms. The

resolution of this control varies with the time base setting.

NOTE.

To make a large adjustment to the horizontal position, turn the Horizontal Scale knob to a larger value, change the horizontal position, and then turn the Horizontal Scale knob back to the previous value.

NOTE

. To set the horizontal position to zero, push the horizontal position knob.

Acquire. Displays the acquisition modes — Sample, Peak Detect, and Average.

ale. Selects the horizontal time/division (scale factor).

12 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Operating Basics

Trigger Contr

ols

Trigger Menu. When it is pressed once, it displays the Trigger Menu. When it is

kept pressed for more than 1.5 seconds, it will show the trigger view, meaning it will di

splay the trigger waveform in place of the channel waveform. Use the trigger view to see how the trigger settings, such as coupling, affect the trigger signal. Releasing the button will stop the trigger view.

Level. When you use an Edge or Pulse trigger, the Level knob sets the amplitude level that the signal must cross to acquire a waveform. Push this knob to set the tri

gger level to the vertical midpoint between the peaks of the trigger signal

(set to 50%).

Force Trig. Use this to complete the waveform acquisition whether or not the oscilloscope detects a trigger. This is useful for single sequence acquisitions and Normal trigger mode. (In Auto trigger mode, the oscilloscope automatically forc

es triggers periodically if it does not detect a trigger.)

Menu and Control Buttons

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 13

Operating Basics

Refer to the Ref

erence chapter for detailed information on the menu and button

controls.

Multipurpose Knob. Thefunctionisdeterminedbythedisplayedmenuorselected menu option. When active, the adjacent LED lights. The next table lists the functions.

Active menu or option Knob operation Description

Cursor

Turn

Scroll to position the selected cursor

Help Turn, push Highlights entries in the Index.

Highlights links in a topic. Push to select the highlighted item.

Math Turn, push

Scroll to position and scale the Math waveform. Scroll and push to select the operation.

FFT Turn, push

Scroll and push to select source, window type and zoom values

Turn, push

Scroll to highlight and push to select the type of automatic measurement for each source

Measure

Turn

Scroll to position the selected gating cursors

Save/Recall

Turn, push

Scroll to highlight and push toselect the action and le format. Scroll through the list of les.

Trigger Turn, push

Scroll to highlight and push to select the trigger type, source, slope, mode, coupling, polarity, sync, video standard, trigger when operation. Turn to set the trigger holdoff and pulse width values .

Utility

Scroll, push Scroll to highlight and push to select

miscellaneous menu items. Turn to set the backlight value.

Vertical

Scroll, push Scroll to highlight and push to select

miscellaneous menu items.

Zoom

Scroll Scroll to change the scale and position

of the zoom window.

Save/Recall. Displays the Save/Recall Menu for setups and waveforms.

Measure. Displays the automated measurements menu.

Acquire. Displays the Acquire Menu.

Ref. Displays the Reference Menu to quickly display and hide reference

waveforms stored in the oscilloscope non-volatile memory.

14 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Operating Basics

Utility. Displ

ays the Utility Menu.

Cursor. Displays the Cursor Menu. Cursors remain visible (unless the Type option is set to Off) after you leave the Cursor Menu but are not adjustable.

Help. Displays the Help Menu.

Default Setup. Recalls the factory setup.

Autoset. Automatically sets the oscilloscope controls to produce a usable display

of the input signals. When held for more than 1.5 seconds, displays the Autorange Menu, and activates or deactivates the autoranging function.

Single. (Single sequence) Acquires a single waveform and then stops.

Run/Stop. Continuously acquires waveforms or stops the acquisition.

Save.

By default, performs the Save function to the USB ash drive.

Input Connectors

1&2.

Input connectors for waveform display.

Ext Trig. Input connector for an external trigger source. Use the Trigger Menu to select the Ext, or Ext/5 trigger source. Push and hold the Trigger Menu button to see trigger view, which will show how the trigger settings affect the trigger signal, such as trigger coupling.

PROBE COMP. Probe compensation output and chassis reference. Use to electrically match a voltage probe to the oscilloscope input circuit. (See page 6, Manual Probe Compensation.)

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 15

Operating Basics

Other Front-P

anel Items

USB Flash Drive port

USB Flash Drive Port. Insert a USB ash drive for data storage or retrieval.

For ash dr

ives with an LED, the LED blinks when saving data to or retrieving data from the drive. Wait until the LED stops blinking before you remove the drive.

16 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

This chapter contains general information that you need to understand before you use an oscilloscope. To use your oscilloscope effectively, you need to learn about the fol

lowing functions:

Setting up the oscilloscope

Triggering

Acquiring signals (waveforms)

Scaling and positioning waveforms

Measuring waveforms

The next gure shows a block diagram of the various functions of the oscilloscope and their relationships to each other.

Setting Up the Oscilloscope

You should become familiar with several functions that you may use often when operating your oscilloscope: Autoset, Autorange, saving a setup, and recalling a setup.

Using Autoset

Each time you push the Autoset button, the Autoset function obtains a stable waveform display for you. It automatically adjusts the vertical scale, horizontal scale and trigger settings. Autoset also displays several automatic measurements in the graticule area, depending on the signal type.

Using Autorange

Autorange is a continuous function that you can enable or disable. The function adjusts setup values to track a signal when the signal exhibits large changes or when you physically move the probe to a different point. To use autorange, push the Autoset button for more than 1.5 seconds.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 17

Understanding Oscilloscope Functions

Saving a Setup

The oscillosco

pe saves the current setup if you wait ve seconds after the last change before you power off the oscilloscope. The oscilloscope recalls this setup the next time you apply power.

You can use the Save/Recall Menu to save up to ten different setups.

You can also

save setups to a USB ash drive. The oscilloscope accommodates

a USB ash drive for removable data storage and retrieval. (See page 59, USB Flash Drive Port.)

Recalling a Setup

The oscill

oscope can recall the last setup before the oscilloscope was powered off,

any saved setups, or the default setup. (See page 92, Save/Recall.)

Default Setup

The oscilloscope is set up for normal operation when it is shipped from the factory

. This is the default setup. To recall this setup, push the Default Setup

button. To view the default settings, refer to Appendix D: Default Setup.

Triggering

The trigger determines when the oscilloscope starts to acquire data and to display a waveform. When a trigger is set up properly, the oscilloscope converts unstable displays or blank screens into meaningful waveforms.

Triggered waveform Untriggered waveforms

For oscilloscope-specic descriptions, refer to the Operating Basics chapter. (See page 13, Trigger Controls.) Refer also to the Reference chapter. (See page 96, Trigger Controls.)

When you push the Run/Stop or Single button to start an acquisition, the oscilloscope goes through the following steps:

1. Acquires enough data to ll the portion of the waveform record to the left of

the trigger point. This is called the pretrigger.

2. Continues to acquire data while waiting for the trigger condition to occur.

3. Detects the trigger condition.

18 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

4. Continues to ac

quire data until the waveform record is full.

5. Displays the newly-acquired waveform.

NOTE. For Edg

e and Pulse triggers, the oscilloscope counts the rate at which trigger events occur to determine trigger frequency. The oscilloscope displays the frequency in the lower right corner of the screen.

Source

You can use the Trigger Source options to select the signal that the oscilloscope uses as a trigger. The source can be the AC power line (available only with Edge triggers), or any signal connected to a channel BNC or to the Ext Trig BNC.

Types

The oscilloscope provides three types of triggers: Edge, Video, and Pulse Width.

Modes

You can select the Auto or the Normal trigger mode to dene how the oscilloscope acquires data when it does not detect a trigger condition. (See page 97, Mode Options.)

To perform a single sequence acquisition, push the Single button.

Coupling

You can use the Trigger Coupling option to determine which part of the signal will pass to the trigger circuit. This can help you attain a stable display of the waveform.

To use trigger coupling, push the Trigg e r Me nu button, select an Edge or Pulse trigger, and select a Coupling option.

NOTE. Trigger coupling affects only the signal passed to the trigger system. It

does not affect the bandwidth or coupling of the signal displayed on the screen.

To view the conditioned signal being passed to the trigger circuit, enable trigger view by pushing and holding down the Tr i g ge r Menu button for more than 1

.5 seconds.

Position

The horizontal position control establishes the time between the trigger and the screen center. Refer to Horizontal Scale and Position; Pretrigger Information for information on how to use this control to position the trigger. (See page 21, Horizontal Scale and Position; Pretrigger Information.)

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 19

Understanding Oscilloscope Functions

Slope and Level

The Slope and Le

vel controls help to dene the trigger. The Slope option (Edge trigger type only) determines whether the oscilloscope nds the trigger point on the rising or the falling edge of a signal. The Trigger Level knob controls where on the edge the trigger point occurs.

Rising edge Falling edge

Trigger level can be adjusted

vertically

Trigger can be rising or falling

Acquiring Signals

When you a

cquire a signal, the oscilloscope converts it into a digital form and displays a waveform. The acquisition mode denes how the signal is digitized, and the time base setting affects the time span and level of detail in the acquisition.

Acquisition Modes

There a

re three acquisition modes: Sample, Peak Detect, and Average.

Sample. In this acquisition mode, the oscilloscope samples the signal in evenly spaced intervals to construct the waveform. This mode accurately represents signals most of the time.

However, this mode does not acquire rapid variations in the signal that may occur between samples. This can result in aliasing, and may cause narrow pulses to be missed. In these cases, you should use the Peak Detect mode to acquire data. (Se

epage22,Time Domain Aliasing.)

Peak Detect. In this acquisition mode, the oscilloscope nds the highest and lowest values of the input signal over each sample interval and uses these values to display the waveform. In this way, the oscilloscope can acquire and display narrow pulses, which may have otherwise been missed in Sample mode. Noise w

ill appear to be higher in this mode.

Average. In this acquisition mode, the oscilloscope acquires several waveforms, averages them, and displays the resulting waveform. You can use this mode to reduce random noise.

Time Base

The oscilloscope digitizes waveforms by acquiring the value of an input signal at discrete points. The time base allows you to control how often the values are digitized.

20 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

To adjust the ti

me base to a horizontal scale that suits your purpose, use the

Horizontal Scale knob.

Scaling and Positioning Waveforms

You can change the display of waveforms by adjusting the scale and position. When you change the scale, the waveform display will increase or decrease in size. When you change the position, the waveform will move up, down, right, or left.

The channel indicator (located on the left of the graticule) identies each waveform on the display. The indicator points to the ground reference level of the waveform record.

You can view the display area and readouts. (See page 9, Display Area.)

Vertical Scale and Position

You can change the vertical position of waveforms by moving them up or down in the display. To compare data, you can align a waveform above another or you can align waveforms on top of each other.

You can change the vertical scale of a waveform. The waveform display will contract or expand relative to the ground reference level.

For oscilloscope-specic descriptions, refer to the Operating Basics chapter. (See page 11, Vertical Controls.) ReferalsototheReference chapter. (See page 106, Vertical Controls.)

Horizontal Scale and

Position; Pretrigger

Information

You can adjust the Horizontal Position control to view waveform data before the trigger, after the trigger, or some of each. When you change the horizontal position of a waveform, you are actually changing the time between the trigger and

the center of the display. (This appears to move the waveform to the right

or left on the display.)

r example, if you want to nd the cause of a glitch in your test circuit, you might trigger on the glitch and make the pretrigger period large enough to capture data before the glitch. You can then analyze the pretrigger data and perhaps nd the cause of the glitch.

You change the horizontal scale of all the waveforms by turning the Horizontal Scale knob. For example, you might want to see just one cycle of a waveform to measure the overshoot on its rising edge.

The oscilloscope shows the horizontal scale as time per division in the scale readout. Since all active waveforms use the same time base, the oscilloscope only displays one value for all the active channels, except when you use zoom feature.

For oscilloscope-specic descriptions, refer to the Operating Basics chapter. (See page 12, Position.) ReferalsototheReference chapter. (See page 85, Horizontal.)

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 21

Understanding Oscilloscope Functions

Time Domain Ali

asing. Aliasing occurs when the oscilloscope does not sample the

signal fast enough to construct an accurate waveform record. When this happens, the oscilloscope displays a waveform with a frequency lower than the actual input waveform, or triggers and displays an unstable waveform.

Actual high-frequency waveform

Apparent low-frequency

waveform du

etoaliasing

Sample points

The oscilloscope accurately represents signals, but is limited by the probe bandwidth, the oscilloscope bandwidth, and the sample rate. To avoid aliasing, the oscilloscope must sample the signal more than twice as fast as the highest frequenc

y component of the signal.

The highest frequency that the oscilloscope sampling rate can theoretically represe

nt is the Nyquist frequency. The sample rate is called the Nyquist rate, and

is twice the Nyquist frequency.

The osc

illoscope maximum sample rates are at least ten times the bandwidth.

These high sample rates help reduce the possibility of aliasing.

There

are several ways to check for aliasing:

Turn the horizontal Scale knob to change the horizontal scale. If the shape of the w

aveform changes drastically, you may have aliasing.

Select the Peak Detect acquisition mode. (See page 20, Peak Detect.) This mode

samples the highest and lowest values so that the oscilloscope can detect faster signals. If the shape of the waveform changes drastically, you may have aliasing.

If the trigger frequency is faster than the display information, you may have aliasing or a waveform that crosses the trigger level multiple times. Examining the waveform allows you to identify whether the shape of the signal is going to allow a single trigger crossing per cycle at the selected trigger level.

If multiple triggers are likely to occur, select a trigger level that will generate only a single trigger per cycle. If the trigger frequency is still faster than the display indicates, you may have aliasing.

If the trigger frequency is slower, this test is not useful.

22 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

If the signal yo

u are viewing is also the trigger source, use the graticule or the cursors to estimate the frequency of the displayed waveform. Compare this to the Trigger Frequency readout in the lower right corner of the screen. If they differ by a large amount, you may have aliasing.

Taking Measurements

The oscilloscope displays graphs of voltage versus time and can help you to measure the displayed waveform.

There are several ways to take measurements. You can use the graticule, the cursors, or an automated measurement.

Graticule

This method allows you to make a quick, visual estimate. For example, you might look at a waveform amplitude and determine that it is a little more than 100 mV.

You can take simpl

e measurements by counting the major and minor graticule

divisions involved and multiplying by the scale factor.

For example, if you counted ve major vertical graticule divisions between the minimum and maximum values of a waveform and knew you had a scale factor of 100 mV/division, then you could calculate your peak-to-peak voltage as follows:

5 divisions x 100 mV/division = 500 mV

Cursor

Cursors

This method allows you to take measurements by moving the cursors, which always appear in pairs, and reading their numeric values from the display readouts. There are two types of cursors: Amplitude and Time.

When you use cursors, be sure to set Source to the waveform on the display that you want to measure.

You can use the cursors to dene the measurement gating area, after you have turned on Measure Gating in the Measure menu. The oscilloscope will restrict the gated measurement you take to the data between the two cursors.

To use cursors, push the Cursor button.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 23

Understanding Oscilloscope Functions

Amplitude Curs

ors. Amplitude cursors appear as horizontal lines on the display

and measure the vertical parameters. Amplitudes are referenced to the reference level. For the FFT function, these cursors measure magnitude.

Time Cursors. Time cursors appear as vertical lines on the display and measure both horizontal and vertical parameters. Times are referenced to the trigger point. For the FFT f

unction, these cursors measure frequency.

Time cursors also include a readout of the waveform amplitude at the point the waveform c

rosses the cursor.

Automatic

The Measure Menu can take up to six automatic measurements. When you take automatic measurements, the oscilloscope does all the calculating for you. Because

the measurements use the waveform record points, they are more

accurate than the graticule or cursor measurements.

Automa

tic measurements use readouts to show measurement results. These

readouts are updated periodically as the oscilloscope acquires new data.

For me

asurement descriptions, refer to the Reference chapter. (See page 86,

Taking Measurements.)

24 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

This section presents a series of application examples. These simplied examples highlight the features of the oscilloscope and give you ideas for using it to solve your own test problems.

Taking simple measurements

Using Autoset

Using the Measure Menu to take automatic measurements

Measuring

two signals and calculating gain

Using Autorange to examine a series of test points

Taking cursor measurements

Measuring ring frequency and ring amplitude

Measuring pulse width

Measuring rise time

Analyz

ing signal detail

Looking at a noisy signal

Using the average function to separate a signal from noise

Capturing a single-shot signal

Optimizing the acquisition

Measuring propagation delay

Tri

ggering on a pulse width

Triggering on a video signal

Triggering on video elds and video lines

Using the window function to see waveform details

Analyzing a differential communication signal using Math functions

Viewing impedance changes in a network using XY mode and persistence

Data logging (non-EDU models only)

Limit testing (non-EDU models only)

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 25

Application Examples

Taking Simple

Measurements

You need to see a signal in a circuit, but you do not know the amplitude or frequency of the signal. You want to quickly display the signal and measure the frequency, p

eriod, and peak-to-peak amplitude.

Using Autoset

To quickly display a signal, follow these steps:

1. Push the 1 (channel 1 menu) button.

2. Push Probe  Volta g e Attenuation  10X.

3. If usi

ng P2220 probes, set their switches to 10X.

4. Connect the channel 1 probe tip to the signal. Connect the reference lead to

the c

ircuit reference point.

5. Push the Autoset button.

The oscilloscope sets the vertical, horizontal, and trigger controls automatically. If you want to optimize the display of the waveform, you can manually adjust th

ese controls.

NOTE. The oscilloscope displays relevant automatic measurements in the

waveform area of the screen based on the signal type that is detected.

For oscilloscope-specic descriptions, refer to the Reference chapter. (See page 73, Autoset.)

26 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

Taking Automatic

Measurements

The oscillosco

pe can take automatic measurements of most displayed signals.

NOTE. If a question mark (?) appears in the Value readout, the signal is outside

the measurement range. Adjust the Vertical Scale knob (volts/division) of the appropriate channel to decrease the sensitivity or change the horizontal Scale setting (seconds/division).

To measure signal frequency, period, and peak-to-peak amplitude, rise time, and positive w

idth, follow these steps:

1. Push the Measure button to see the Measure Menu.

2. Push the channel 1 or the 2 button. The measure menu appears to the left.

3. Turn the Multipurpose knob to highlight the desired measurement. Push the

knob to select the desired measurement. .

The Val u e readout displays the measurement and updates.

4. Push the channel 1 or 2 button to select another measurement. You can display up to six measurements on the screen at a time.

Measure

Gating

On / Off

Ch1

Ch2

Math

Measurements

Period Frequency Peak-Peak

Minimum

Maximum

Mean Cycle Mean

Cursor

Mean

RMS Cycle RMS Cycle RMS

Rise Time

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 27

Application Examples

Measuring Two Signals

If you are testi

ng a piece of equipment and need to measure the gain of the audio amplier, you will need an audio generator that can inject a test signal at the amplier input. Connect two oscilloscope channels to the amplier input and output as shown next. Measure both signal levels and use the measurements to calculate the gain.

Measure

Gating On-Off

Ch1

Ch2

Math

To activate and display the signals connected to channel 1 and to channel 2, and select measurements for the two channels, follow these steps:

1. Push the Autoset button.

2. Push the Measure button to see the Measure Menu.

3. Push the Ch1 side menu. The pop-up menu of measurement types appears to

the left.

4. Turn the Multipurpose knob to highlight Peak-Peak.

5. Push the Multipurpose knob to select Peak-Peak. A check should appear

next to the menu item and the Peak-to-Peak measurement for channel 1 should appear towards the bottom of the display.

28 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

6. Push the Ch1 sid

e menu. The pop-up menu of measurement types appears

to the left. .

7. Turn the Multi

purpose knob to highlight Peak-Peak.

8. Push the Multipurpose knobtoselectPeak-Peak. A check should appear

next to the m

enu item and the peak-to-peak for channel 2 should appear

towards the bottom of the display.

9. Read the dis

played peak-to-peak amplitudes for both channels.

10. To calculate the amplier voltage gain, use these equations:

VoltageGain = output amplitude/input amplitude

VoltageGain (dB) = 20 × log

(VoltageGain)

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 29

Application Examples

Using Autoran

ge to Examine a Series of Test Points

If you have a machine that is malfunctioning, you may need to nd the frequency and RMS voltage of several test points, and compare these values to ideal values. You a r e n o t a b

le to access front-panel controls since you need to use both hands when probing test points that are difcult to physically reach.

1. Push the 1 (channel 1 menu) button.

2. Push Probe  Voltage  Attenuation. Chose the attenuation of the probe

attached to channel 1 from the pop-out selectable list of values by turning and pushing the Multipurpose knob.

3. Push the Autoset button for more than 1.5 seconds to activate autoranging,

and select the Vertical and Horizontal option.

4. Push the Measure button to see the Measure Menu.

5. Push Ch1.

6. Turn the Multipurpose knob to select Frequency.

7. Push Ch2.

8. Turn the Multipurpose knob to select Cycle RMS.

9. Attach the probe tip and reference lead to the rst test point. Read the

frequency and cycle RMS measurements from the oscilloscope display and compare these to the ideal values.

10. Repeat the preceding step for each test point, until you nd the malfunctioning

component.

NOTE. When Autorange is active, each time you move the probe to another test

point, the oscilloscope readjusts the horizontal scale, the vertical scale, and the trigger level, to give you a useful display.

Taking Cursor Measurements

You can use the cursors to quickly take time and amplitude measurements on a waveform.

Measuring Ring Frequency

and Amplitude

To measure the ring frequency at the rising edge of a signal, follow these steps:

1. Push the Cursor front-panel button to see the Cursor Menu.

2. Push the Ty p e side-menu button. A pop-out menu should appear showing a

scroll-able list of the available cursor types.

3. Turn the Multipurpose knob to highlight Time.

4. Push the Multipurpose knob to select Time.

30 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

5. Push the Source

side-menu button. A pop-out menu should appear showing a

scroll-able list of the available sources.

6. Turn the Multi

purpose knob to highlight Ch1.

7. Push the Multipurpose knobtoselectCh1.

8. Push the Cursor 1 option button.

9. Turn the Multipurpose knob to place a cursor on the rst peak of the ring.

10. Push the Cursor 2 option button.

11. Turn the Multipurpose knob to place a cursor on the second peak of the ring.

You c a n s e

e the  (delta) time and frequency (the measured ring frequency)

in the Cursor Menu.

Type Time

Source

Ch1

t 540.0ns

1/t

1.852MHz V 0.44V

Cursor1

180ns

1.40V

Cursor2

720ns

0.96V

12. Push the Typ e side-menu button. A pop-out menu should appear showing a scroll-able list of the available cursor types.

13. Turn the Multipurpose knob to highlight Amplitude.

14. Push the Multipurpose knob to select Amplitude.

15. Push the Cursor 1 option button.

16. Turn the Multipurpose knob to place a cursor on the rst peak of the ring.

17. Push the Cursor 2 option button.

18. Turn the Multipurpose knob to place Cursor 2 on the lowest part of the ring.

You can see the amplitude of the ring in the Cursor Menu.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 31

Application Examples

Type

Amplitude

Source

Ch1

V 640mV

Cursor 1

1.46V

Cursor 2

820mV

Measuring Pulse Width

If you are analyzing a pulse waveform and you want to know the width of the pulse, fol

low these steps:

1. Push the Cursor button to see the Cursor Menu.

2. Push the Ty p e side-menu button. A pop-out menu should appear showing a

scroll-able list of the available cursor types.

3. Turn the Multipurpose knob to highlight Time.

4. Push the Multipurpose knob to select Time.

5. Push the Cursor 1 option button.

6. Turn the Multipurpose knob to place a cursor on the rising edge of the pulse.

7. Push t

he Cursor 2 option button.

8. Turn the Multipurpose knob to place a cursor on the falling edge of the pulse.

You can see the following measurements in the Cursor Menu:

The time at Cursor 1, relative to the trigger.

The time at Cursor 2, relative to the trigger.

The  (delta) time, which is the pulse width measurement.

32 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

Type

Time

Source

Ch1

t 500.0μs

1/t 2.000kHz

V 1.38V

Cursor 1

0.00s

0.98V

Cursor 2

500μs

-1.00V

NOTE. The Positive Width measurement is available as an automatic measurement

in the Measure Menu. (See page 86, Taking Measurements.)

Measuring Rise Time

After measuring the pulse width, you decide that you need to check the rise time of the pulse. Typically, you measure rise time between the 10% and 90% levels of the waveform. To measure the rise time, follow these steps:

1. Turn the Horizontal Scale (seconds/division) knob to display the rising edge of the waveform.

2. Turn the Vertical Scale (volts/division) and Vertical Position knobs to set the waveform amplitude to about ve divisions.

3. Push the 1 (channel 1 menu) button.

4. Push Volts / Div  Fine.

5. Turn the Ver t ica l Sc a le (volts/division) knob to set the waveform amplitude

to exactly ve divisions.

6. Turn the Vertical Position knob to center the waveform; position the baseline of the waveform 2.5 divisions below the center graticule.

7. Push the Cursor button to see the Cursor Menu.

8. Push the Ty p e side-menu button. A pop-out menu should appear showing a

scroll-able list of the available cursor types.

9. Turn the Multipurpose knob to highlight Time.

10. Push the Multipurpose knob to select Time.

11. Push the Source side-menu button. A pop-out menu should appear showing a

scroll-able list of the available sources.

12. Turn the Multipurpose knob to highlight Ch1.

13. Push the Multipurpose knobtoselectCh1.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 33

Application Examples

14. Push the Cursor

1 option button.

15. Turn the Multipurpose knob to place a cursor at the point where the

waveform crosses the second graticule line below center screen. This is the 10% level of the waveform.

16. Push the Cursor 2 option button.

17. Turn the Multipurpose knob to place a cursor at the point where the

waveform crosses the second graticule line above center screen. This is the 90% level of the waveform.

The t readout in the Cursor Menu is the rise time of the waveform.

5 divisions

Type

Time

Source

Ch1

t 140.0ns

1/t

7.143MHz V 2.08V

Cursor 1

-80.0ns

-1.02V

Cursor 2

60.0ns

1.06V

NOTE. The Rise Time measurement is available as an automatic measurement in

the Measure Menu. (See page 86, Taking Measurements.)

Analyzing Signal Detail

You have a noisy signal displayed on the oscilloscope and you need to know more about it. You suspect that the signal contains much more detail than you can now see in the display.

34 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

Looking at a Noisy Signal

The signal appe

ars noisy and you suspect that noise is causing problems in your

circuit. To better analyze the noise, follow these steps:

1. Push the Acqui

re button to see the Acquire Menu.

2. Push the Peak Detect option button.

Peak detect emphasizes noise spikes and glitches in your signal, especially when the time base is set to a slow setting.

Separating the Signal from

Noise

Now you want to analyze the signal shape and ignore the noise. To reduce random noise in the oscilloscope display, follow these steps:

1. Push the Acquire button to see the Acquire Menu.

2. Push the Average option button.

3. Turn the Multipurpose knob to highlight different numbers of averages from

the pop-up menu. As you push the knob to select a different number, you can see the effects of varying the number of running averages on the waveform display.

Averaging reduces random noise and makes it easier to see detail in a signal. In the example below, a ring shows on the rising and falling edges of the signal when the noise is removed.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 35

Application Examples

Capturing a Si

ngle-Shot Signal

The reliability of a reed relay in a piece of equipment has been poor and you need to investigate the problem. You suspect that the relay contacts arc when the relay opens. The fa

stest that you can open and close the relay is about once per minute,

so you need to capture the voltage across the relay as a single-shot acquisition.

To set up for a single-shot acquisition, follow these steps:

1. Turn the Ver t ica l S c ale (volts/division) and Horizontal Scale (seconds/division) knobs to the appropriate ranges for the signal you expect to see.

2. Push the Acquire button to see the Acquire Menu.

3. Push the Peak Detect option button.

4. Push the Tr igger Me n u button to see the Trigger Menu.

5. Push Slope.

6. Turn the Multipurpose knob to highlight Rising from the pop-out menu.

Push the knob to select the choice

7. Turn the front-panel Level knob to adjust the trigger level to a voltage midway between the open and closed voltages of the relay.

8. Push the Single button to start the acquisition.

When the relay opens, the oscilloscope triggers and captures the event.

Optimizing the Acquisition

The initial acquisition shows the relay contact beginning to open at the trigger point. This is followed by a large spike that indicates contact bounce and inductance in the circuit. The inductance can cause contact arcing and premature relay failure.

You can use the vertical, h

orizontal, and trigger controls to optimize the settings before the next single-shot event is captured. When the next acquisition is captured with the new settings (push the Single button again), you can see that the contact bounces several times as it opens.

36 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 37

Application Examples

Measuring Propagation Delay

You suspect that the memory timing in a microprocessor circuit is marginal. Set up the oscilloscope to measure the propagation delay between the chip-select signal and the data output of the memory device.

Type

Time

Source

Ch1

t 20.00ns

1/t

50.00MHz V 0.28V

Cursor 1

50.0ns

-0.20V

Cursor 2

70.0ns

0.08V

To set up to measure propagation delay, follow these steps:

1. Push the Autoset button to trigger a stable display.

2. Adjust the horizontal and vertical controls to optimize the display.

3. Push the Cursor button to see the Cursor Menu.

4. Push the Ty p e side-menu button. A pop-out menu should appear showing a

scroll-able list of the available cursor types.

5. Turn the Multipurpose knob to highlight Time.

6. Push the Multipurpose knob to select Time.

7. Push the Source side-menu button. A pop-out menu should appear showing a

scroll-able list of the available sources.

38 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

8. Turn the Multip

urpose knob to highlight Ch1.

9. Push the Multipurpose knobtoselectCh1.

10. Push the Cursor 1 option button.

11. Push the Cursor 1 option button.

12. Turn the Multipurpose knob to place a cursor on the active edge of the

chip-select signal.

13. Push the Cursor 2 option button.

14. Turn the Multipurpose knob to place the second cursor on the data output

transition.

The t readout in the Cursor Menu is the propagation delay between the waveforms. The readout is valid because the two waveforms have the same horizontal scale (seconds/division) setting.

Triggering on a Specic Pulse Width

To set up a test for pulse width aberrations, follow these steps:

1. Pus

htheAutoset button to trigger a stable display.

2. Push the single cycle

option button in the Autoset Menu to view a

single cycle of the signal, and to quickly take a Pulse Width measurement.

3. Push the Tr ig g er M e nu button to see the Trigger Menu.

4. Push Type.

5. Turn the Multipurpose knob to highlight Pulse from the pop-out menu. Push

the knob to select the choice

6. Push Source.

7. Turn the Multipurpose knob to highlight Ch1 from the pop-out menu. Push

the knob to select the choice

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 39

Application Examples

8. Turn the trigge

r Level knob to set the trigger level near the bottom of the

signal.

9. Push When  = (e

quals).

10. Push Pulse Width.

11. Turn the Multipurpose knob to set the pulse width to the value reported by

the Pulse Width measurement in step 2.

12. Push More  Mode  Normal.

You can achieve a stable display with the oscilloscope triggering on normal pulses.

1. Push the When option button to select , <,or>. If there are any aberrant pulses that meet the specied When condition, the oscilloscope triggers.

NOTE. The trigger frequency readout shows the frequency of events that the

oscilloscope might consider to be a trigger, and may be less than the frequency of the input signal in Pulse Width trigger mode.

40 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

Triggering on

a Video Signal

You are testing the video circuit in a piece of medical equipment and need to display the video output signal. The video output is an NTSC standard signal. Use the video tri

gger to obtain a stable display.

NOTE. Most video systems use 75 ohm cabling. The oscilloscope inputs do not

properly terminate low impedance cabling. To avoid amplitude inaccuracy from improper loading and reections, place a 75 ohm feedthrough terminator (Tektronix part number 011-0055-02 or equivalent) between the 75 ohm coaxial cable from the signal source and the oscilloscope BNC input.

Triggering on Video Fields

Automatic. To trigger on the video elds, follow these steps:

1. Push the Autoset button. When Autoset is complete, the oscilloscope displays the video signal with sync on All Fields.

The oscilloscope sets the Standard option when you use the Autoset function.

1. Push the Odd Field or Even Field option buttons from the Autoset Menu to sync on odd or even elds only.

Manual. An alternative method requires more steps, but may be necessary depending on the video signal. To use the manual method, follow these steps:

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 41

Application Examples

1. Push the 1 (chan

nel 1 menu) button.

2. Push Coupling  AC.

3. Push the Tr igger Me n u button to see the Trigger Menu.

4. Push the top option button and select Video.

5. Push Source  Ch1.

6. Push the Sync option button and select All Fields, Odd Field,orEven Field.

7. On page 2 of

the side menu, push Standard  NTSC.

8. Turn the Horizontal Scale (seconds/division) knob to see a complete eld

across th

e screen.

9. Turn the Ve rt i ca l Sc al e (volts/division) knob to ensure that the entire video signal i

s visible on the screen.

42 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

Triggering on V

ideo Lines

Automatic. Yo u

can also look at the video lines in the eld. To trigger on the

video lines, follow these steps:

1. Push the Autos

et button.

2. Push the top option button to select Line to sync on all lines. (The Autoset

Menu includ

es All Lines and Line Number options.)

Manual. An alternative method requires more steps, but may be necessary depending on the video signal. To use this method, follow these steps:

1. Push the Tr ig g er M e nu button to see the Trigger Menu.

2. Push the top option button and select Video.

3. Push the S

ync option button and select All Lines or Line Number and turn

the Multipurpose knob to set a specic line number.

4. Push Sta

ndard  NTSC.

5. Turn the Horizontal Scale (seconds/division) knob to see a complete video

line ac

ross the screen.

6. Turn the Ver t ic a l S c al e (volts/division) knob to ensure that the entire video signa

l is visible on the screen.

Incoming video signal

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 43

Application Examples

Using the Zoom Function

to See Waveform Details

You can use the z

oom function to examine a specic portion of a waveform

without changing the main display.

Ifyouwanttov

iew the color burst in the previous waveform in more detail

without changing the main display, follow these steps:

1. Push the Zoo

m front-panel button.

When pressing the Zoom button, the waveform display area will show original waveform (a

bout ¼) and zoom in waveform (about ¾). And the menu area will keep the original menu. If both channels are turned on at the same time, there will be two zoom in waveforms at the top window.

2. Push the Scale side-menu button and turn the Multipurpose knobtochange the zoom scale.

3. Push the Position side-menu button and turn the Multipurpose knob to change the zoom position.

4. Turn the horizontal Scale (seconds/division) knob and select 500 ns. This will be the seconds/division setting of the expanded view.

5. Turn the Horizontal Position knob to position the zoom window around the portion of the waveform that you want to expand.

Analyzing a Differential Communication Signal

You are having intermittent problems with a serial data communication link, and you suspect poor signal quality. Set up the oscilloscope to show you a snapshot of the serial data stream so you can verify the signal levels and transition times.

Because this is a differential signal, you use the Math function of the oscilloscope to view a better representation of the waveform.

44 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

NOTE. B

e sure to rst compensate both probes. Differences in probe

compensation appear as errors in the differential signal.

To ac

tivate the differential signals connected to channel 1 and to channel 2,

follow these steps:

1. Push

the 1 (channel 1 menu) button and set the Probe  Vol t age 

Attenuation option to 10X.

2. Pus

hthe2 (channel 2 menu) button and set the Probe  Vo lta g e 

Attenuation option to 10X.

3. If

using P2220 probes, set their switches to 10X.

4. Push the Autoset button.

5. Push the Math button to see the Math Menu.

6. Push the Operation option button and select -.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 45

Application Examples

7. Push the Source

s Ch1-Ch2 option button to display a new waveform that is

the difference between the displayed waveforms.

8. To adjust the v

ertical scale and position of the Math waveform, follow these

steps:

a. Remove the c

hannel 1 and channel 2 waveforms from the display.

b. Turn the channel 1 and channel 2 Vertical Scale and Vertical Position

knobs to adj

ust the vertical scale and position of the Math waveform.

For a more stable display, push the Single button to control the acquisition of the wavefo

rm. Each time you push the Single button, the oscilloscope acquires a snapshot of the digital data stream. You can use the cursors or automatic measurements to analyze the waveform, or you can store the waveform to analyze later.

Viewing Impedance Changes in a Network

You have designed a circuit that needs to operate over a wide temperature range. You need to evaluate the change in impedance of the circuit as the ambient temperature is changed.

Connect the oscilloscope to monitor the input and output of the circuit and capture the changes that occur as you vary the temperature.

46 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

To view

the input and output of the circuit in an XY display, follow these steps:

1. Push the 1 (channel 1 menu) button.

2. Push Probe  Voltage Attenuation  10X.

3. Push the 2 (channel 2 menu) button.

4. Push Probe  Volt a ge  Attenuation  10X.

5. If using P2220 probes, set their switches to 10X.

6. Con

nect the channel 1 probe to the input of the network, and connect the

channel 2 probe to the output.

7. Pu

sh the Autoset button.

8. Turn the Vertical Scale (volts/division) knobs to display approximately the s

ame amplitude signals on each channel.

9. Push the Utility  Display button to see the Display Menu.

10. Push Format  XY.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 47

Application Examples

The oscillosco

pe displays a Lissajous pattern representing the input and

output characteristics of the circuit.

11. Turn the Verti

cal Scale and Vertical Position knobs to optimize the display.

12. Push Persist  Innite.

As you adjust the ambient temperature, the display persistence captures the changes in the characteristics of the circuit.

Data Logging (non-EDU models only)

You can use the oscilloscope to record data from a source over time. You can congure

the trigger conditions and direct the oscilloscope to save all the triggered waveform together with timing information over a dened time duration to a USB memory device.

The USB host port on the front panel supports data logging. You can set up the oscilloscope to save user- specied triggered waveforms to a USB device for up to 24 hours. You can also select the "Innite" option for continuous waveform monitoring. In the innite mode you can save your triggered waveforms to an external USB memory device without a duration limitation until the memory devic

e is full. The oscilloscope will then guide you to insert another USB memory

device to continue saving waveforms.

1. Con

gure the oscilloscope to use the desired trigger conditions to collect the

data. Also, insert a USB memory device in the front-panel USB port.

2. Pus

h the front-panel Function button.

3. Select Data Logging from the resulting side menu to bring up the data

gging menu.

4. Push the Source button to select the signal source to log data from. You can

e either one of the input channels or the Math waveform.

5. Push the Duration button and turn and push the Multipurpose knob to select

he duration for data logging. The selections range from 0.5 hour to 8 hours in 30 minute increments and from 8 hours to 24 hours in 60 minute increments. You can select Innite to run data logging with no set time limit.

6. Push the Select Folder button to dene where to store the collected information. The resulting menu choices will let you either select an existing folder or dene a new folder. When done, push Back to return to the main data logging menu

7. Start the data acquisition, such as by pushing either the front-panel Single or Run/Stop button.

8. Push Data Logging from the side menu to select On. This enables the data logging feature. Before turning on the data logging feature, you must rst

48 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Application Examples

select the sour

ce, the time duration, and the folder, as dened in the steps

above.

9. When the oscilloscope nishes the requested data logging operation, it displays a “Data logging completed” message and turns off the data logging feature.

Limit Testing (non-EDU models only)

You can use the oscilloscope to monitor an active input signal against a template and to output pass or fail results by judging whether the input signal is within the bounds of the template.

Use the limit test if you need a Pass/Fail test to determine if a signal is good. Set up the oscilloscope to automatically monitor a source signals and output Pass or Fail results by evaluating whether or not the acquired waveform falls within predened boundaries. The limit test feature allows you to create templates based on one or two independent reference waveforms. If a failure is detected, a series of specic actions can be triggered.

1. Push the front-panel Function button.

2. Select Limit Test from the resulting side menu to bring up the limit testing

menu.

3. Select Source from the side menu to dene the source of the waveform to compare against the limit test template.

4. Select Compare To to specify the limit test template against which to compare test signals sectioned with the Source menu item.

5. Push Template Setup from the side menu to dene the boundary to compare with the input source signals.

If you pushed Template Setup, you can create the template with specic horizontal and vertical tolerances. You can create them from channel 1, channel 2, or the Math waveform. On page 2 of the resulting menu you can push Display Template and toggle between On and Off to display or not a stored template. Push Back from page 2 to return to the top level of the limit test menu.

6. Push - more - page 1 of 2 to see the Action on Violation side-menu button. Select it and then select an action from the resulting side menu to describe what the oscilloscope will do after it detects a violation. You can select between Save Waveform and Save Image.PushBack to return to the top level of the limit test menu.

7. Push the Stop After butt

on from page 2 of the top level of the limit test menu. Push the button with the same name on the resulting side menu. On the resulting pop-out menu, turn and push the Multipurpose knob to dene the conditions that will stop limit testing. If you select Waveforms, Violations,

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 49

Application Examples

or Time,pushth

e resulting side menu items and turn the Multipurpose knob to set the desired number of waveforms, number of violations, or the time in seconds at which to stop. You can also choose Manual to stop the testing manually.

8. Push the Run/Stop Test side-menu button from page 1 of the top level of the limit test menu to toggle between starting and ending the limit test. After the test ends, the oscilloscope will display the test statistics on the lower-level corner of the screen. This includes the total number of cases tested, the number of c

ases passed, and the number of cases failed.

50 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

FFT

FFT converts a time-domain (YT) signal into its frequency components (spectrum). The oscilloscope can optionally display the source waveform at the same time as the FFT waveform. Use FFT for the following types of analysis:

Analyze harmonics in power lines

Measure harmonic content and distortion in systems

Characterize noise in DC power supplies

Test impul

se response of lters and systems

Analyze vibration

To use FFT, you need to perform the following tasks:

Set up the source (time-domain) waveform

Display the FFT spectrum

Select a type of FFT window

Adjust

the sample rate to display the fundamental frequency and harmonics

without aliasing

Use cu

rsors to measure the spectrum

SettingUptheTime-DomainWaveform

Befo

re you use FFT, you need to set up the time-domain (YT) waveform. To do

so, follow these steps:

1. Pus

h Autoset to display a YT waveform.

2. Turn the Vertical Position knob to move the YT waveform to the center ve

rtically (zero divisions).

This ensures that the FFT will show a true DC value.

3. Turn the Horizontal Position knob to position the part of the YT waveform that you want to analyze in the center eight divisions of the screen.

The oscilloscope calculates the FFT spectrum using the center 2048 points of the time-domain waveform.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 51

FFT

4. Turn the Ve r ti c

al Scale (volts/division) knob to ensure that the entire

waveform remains on the screen. The oscilloscope may display erroneous FFT results (by adding high frequency components) if the entire waveform is not visible.

5. Turn the Horizontal Scale (seconds/division) knob to provide the resolution youwantintheFFTspectrum.

6. If possible, set the oscilloscope to display many signal cycles.

If you turn the Horizontal Scale knob to select a faster setting (fewer cycles), the FFT spectrum shows a larger frequency range, and reduces the possibility of FFT aliasing. (See page 55, FFT Aliasing.) However, the oscilloscope also displays less frequency resolution.

To set up the FFT display, follow these steps:

1. Push the FFT front-panel button to see the FFT side menu.

2. Push Source from the side menu.

3. Turn th

e Multipurpose knob to highlight the source channel. Push the knob

to select the channel.

NOTE. Trigger and position any transient or burst waveforms as closely as

possible to the center of the screen.

Nyquist Frequency

The highest frequency that any real-time digitizing oscilloscope can measure without errors is one-half the sample rate. This frequency is called the Nyquist frequency. Frequency information above the Nyquist frequency is undersampled, which causes FFT aliasing. (See page 55, FFT Aliasing.)

The math function transforms the center 2048 points of the time-domain waveform into an FFT spectrum. The resulting FFT spectrum contains 1024 p

oints that go from DC (0 Hz) to the Nyquist frequency.

Normally, the display compresses the FFT spectrum horizontally into 250 points, but you can use the FFT Zoom function to expand the FFT spectrum to more clearly see the frequency components at each of the 1024 data points in the FFT spectrum.

NOTE. The oscilloscope vertical response rolls off slowly above its bandwidth

(50 MHz, 70 MHz, 100 MHz, 150 MHz or 200 MHz, depending on the model, or 20 MHz when the Bandwidth Limit option is ON). Therefore, the FFT spectrum can show valid frequency information higher than the oscilloscope bandwidth. However, the magnitude information near or above the bandwidth will not be accurate.

52 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

FFT

Displaying th

e FFT Spectrum

Push the FFT button to display the FFT side menu. Use the options to select the Source channel, Window algorithm, and FFT Zoom factor. You can display only one FFT spect

rum at a time.

FFT option Settings Comments

Source On/Off On, Off Selects whether the screen displays the source waveform

at the same

time as it displays the FFT waveform

Source Ch1, Ch2 Selects th

e channel used as the FFT source

Window Hanning, Flattop, Rectangular

Selects t

he FFT window type; (See page 54, Selecting

an FFT Window.)

FFT Zoom X1, X2, X5

, X10

Changes the horizontal magnication of the FFT display; (See page 57, Magnifying and Positioning an FFT

Spectru

m.)

1. Frequency at the center graticule line.

2. Ve

rtical scale in dB per division (0 dB = 1 V

RMS

3. Horizontal scale in frequency per division.

4. Sample rate in number of samples per second.

5. FFT window type.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 53

FFT

Selecting an F

FT Window

Windows reduce spectral leakage in the FFT spectrum. The FFT assumes that the YT waveform repeats forever. With an integral number of cycles (1, 2, 3, ...), the YT w

aveform starts and ends at the same amplitude and there are no

discontinuities in the signal shape.

A non-integ

ral number of cycles in the YT waveform causes the signal start and end points to be at different amplitudes. The transitions between the start and end points cause discontinuities in the signal that introduce high-frequency transients.

Applying a window to the YT waveform changes the waveform so that the start and stop values are close to each other, reducing the discontinuities.

54 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

FFT

The FFT function includes three FFT Window options. There is a trade-off between

frequency resolution and amplitude accuracy with each type of window. What you want to measure and your source signal characteristics will help you to determine which window to use.

Window Measur

Charac

teristics

Hanning

Perio

dic waveforms

Bette

r frequency, poorer magnitude

accuracy than Flattop

Flatt

Periodic waveforms Better magnitude, poorer frequency

accuracy than Hanning

Rectangular Pulses or transients

Special-purpose window for waveforms tha

t do not have discontinuities. This is

essentially the same as no window

FFT Aliasing

Problems occur when the oscilloscope acquires a time-domain waveform containing frequency components that are greater than the Nyquist frequency. (See page 52, Nyquist Frequency.) The frequency components that are above the Nyquist frequency are undersampled, appearing as lower frequency components t

hat "fold back" around the Nyquist frequency. These incorrect components are

called aliases.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 55

FFT

56 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

FFT

Eliminating Aliases

To eliminate al

iases, try the following remedies:

Turn the Horizontal Scale (seconds/division) knob to set the sample rate to a faster setti

ng. Since you increase the Nyquist frequency as you increase the sample rate, the aliased frequency components appear at their proper frequency. If too many frequency components are shown on the screen, you can use the FFT Zoom option to magnify the FFT spectrum.

If you do not need to view frequency components above 20 MHz, set the Bandwidth Limit option to On.

Put an external lter on the source signal to bandwidth limit the source waveform to frequencies below that of the Nyquist frequency.

Recognize and ignore the aliased frequencies.

Use zoom controls and the cursors to magnify and measure the FFT spectrum.

Magnifying and Positioning an FFT Spectrum

You can magnify and use cursors to take measurements on the FFT spectrum. The oscilloscope includes an FFT Zoom option to magnify horizontally. To magnify vertically, you can use the vertical controls.

Horizontal Zoom and

Position

The FFT Zoom option lets you horizontally magnify the FFT spectrum without changing the sample rate. Zoom factors are X1 (default), X2, X5, and X10. At zoom factor X1, and with the waveform centered in the graticule, the left graticule line is at 0 Hz and the right graticule line is at the Nyquist frequency.

When you change the zoom factor, the FFT spectrum is magnied about the center graticule line. In other words, the axis of horizontal magnication is the center graticule line.

Turn the Horizontal Position knob clockwise to move the FFT spectrum to the right. Push the knob to position the center of the spectrum at the center of the g

raticule.

Vertical Zoom and Position

The channel vertical knobs become vertical zoom and position controls for their respective channels when displaying the FFT spectrum.

Turn the Vertical Position knob clockwise to move the spectrum up for the source channel.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 57

FFT

Measuring an F

FT Spectrum Using Cursors

You can take two measurements on FFT spectrums: magnitude (in dB), and frequency (in Hz). Magnitude is referenced to 0 dB, where 0 dB equals 1 V

RMS

You can use the cursors to take measurements at any zoom factor. To do so, follow these steps:

1. Push the Cursor button to see the cursor side menu.

2. Push Source  FFT.

3. Push the Type option button and use the Multipurpose knob to select Magnitude or Frequency.

4. Select Cursor 1 or Cursor 2.

5. Use the Multipurpose knob to move the selected cursor.

Use hori

zontal cursors to measure magnitude and vertical cursors to measure frequency. The options display the delta between the two cursors, the value at cursor 1 position, and the value at cursor 2 position. Delta is the absolute value of cursor 1 minus cursor 2.

Magnitude cursors Frequency cursors

You can also take a frequency measurement without using the cursors. To do so, tur

ntheHorizontal Position knob to position a frequency component on the

center graticule line and read the frequency at the top right of the display.

58 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

This chapter describes how to use the Universal Serial Bus (USB) ports on the oscilloscope to do the following tasks:

Save and recall waveform data or setup data, or save a screen image

Transfer waveform data, setup data, or a screen image to a PC

Control the oscilloscope with remote commands

To use the PC Communications software, launch and refer to the online help from the software.

USB Flash Drive Port

ThefrontoftheoscilloscopehasaUSBFlashDriveporttoaccommodateaUSB ash drive for le storage. The oscilloscope can save data to and retrieve data from the ash drive.

USB Flash Drive port

NOTE. The oscilloscope can only support ash drives with a storage capacity

of 64 GB or less.

To connect a USB ash drive, follow these steps:

1. Align the USB ash drive with the USB Flash Drive port on the oscilloscope. Flash drives are shaped for proper installation.

2. Insert the ash drive into the port until the drive is fully inserted.

For ash drives with an LED, the drive "blinks" while the oscilloscope writes data to or reads data from the drive. The oscilloscope also displays a clock symbol to indicate when the ash drive is active.

After a le i

s saved or retrieved, the LED on the drive (if any) stops blinking, and the oscilloscope removes the clock. A hint line also displays to notify you that the save or recall operation is complete.

To remove a USB ash drive, wait until the LED on the drive (if any) stops blinking or until the hint line appears that says the operation is complete, grab the edge of the drive, and extract the drive from the port.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 59

USB Flash Drive and Device Ports

Flash Drive Initial Read

Time

The oscillosco

pe reads the internal structure of a USB ash drive each time you install a drive. The time to complete the read depends on the size of the ash drive, how the drive is formatted, and the number of les stored on the drive.

NOTE. To signicantly shorten the initial read time of 64 MB and larger USB

ash drives, format the drive on your PC.

Formatting

a Flash Drive

The Format function deletes all data on the USB ash drive. To format a ash drive, follow these steps:

1. Insert a USB ash drive into the Flash Drive port on the front of the

oscilloscope.

2. Push the Utility button to see the Utility Menu.

3. Push File Utilities  More  Format.

4. Select Ye s to format the ash drive.

Flash Drive Capacities

The oscilloscope can store the following types and number of les per 1 MB of USB ash drive memory:

5 Save All operations; (See page 63, Saves All to Files.) (See page 92, Save All.)

16 screen image les (capacity depends on the image format

); (See page 64,

Saves Image to File.) (See page 92, Save Image.)

250 oscilloscope setting (.SET) les; (See page 93, Save Setup.)

18 waveform (.CSV) les; (See page 94, Save Waveform.)

File Management Conventions

The oscilloscope uses the following le management conventions for data storage:

The oscilloscope checks for available space on the USB ash drive before writing les, and displays a warning message if there is not enough memory available.

The term “folder” refers to a directory location on the USB ash drive.

The default location for the le save or le recall functions is the current folder.

/usb0/ is the root folder.

The oscilloscope resets the current folder to /usb0/ when you power on the oscilloscope, or when you insert a USB ash drive after the oscilloscope is powered on.

60 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

File names can h

ave one to eight characters, followed by a period, and then

followed with an extension of one to three characters.

The oscillosc

ope displays long le names created on PC operating systems

with the shortened le name from the operating system.

File names a

re case insensitive and are displayed in upper case.

You can use the File Utilities menu to do the following tasks:

List the contents of the current folder

Select a le or folder

Navigate to other folders

Create, rename, and delete les and folders

Format t

he USB ash drive

(See page 105, File Utilities for the USB Flash Drive.)

Saving and Recalling Files With a USB Flash Drive

There are two ways to operate the USB ash drive for le storage:

through the Save/Recall menu

through the alternative Save function of the front-panel Save button

You can use the following Save/Recall menu options to write data to or retrieve data from a USB ash drive:

Save Image

Save Setup

Save Waveform

Recall Setup

ecall Waveform

NOTE. The front-panel Save button

can be used as a save button for quick storage of les to a ash drive. For information on how to save many les at once, or images one after another, refer to Using the Save Functions of the Front-Panel Save button. (See page 63, Using the Save Function of the Front-Panel Save Button.)

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 61

USB Flash Drive and Device Ports

Save Image, Save Setup,

and Save Waveform

Options

You can save a sc

reen image, the oscilloscope settings, or waveform data to a le

on the USB ash drive through the Save/Recall menu.

Each save option operates in a similar way. As an example, to save a screen image le to a ash drive, follow these steps:

1. Insert a USB ash drive into the USB Flash Drive port.

2. Push Utility  Options  Printer Setup and set the following options:

Ink Saver On, Off Saves the screen image on a white

background when you select On

Layout Portrait, Landscape

Orients the screen shot

3. Access the screen you want to save.

4. Push the Save/Recall front-panel button.

5. Select the Action  Save Image  Save option.

The oscilloscope saves the screen image in the current folder and automatically generates the le name. (See page 92, Save/Recall.)

Recall Setup, and Recall

Waveform Options

You can recall the oscilloscope settings or wavefor

mdatafromaleontheUSB

ash drive through the Save/Recall menu.

Each recall option operates in a similar way. As an example, to recall a waveform le from a USB ash drive, follow these steps:

1. Insert the USB ash drive that contains the desired waveform le into the USB Flash Drive port on the front of the oscilloscope.

2. Push the Save/Recall front panel button.

3. Select the Action  Recall Waveform  Select File option.

You can use the Change Folder option to navigate to another folder on the ash drive.

4. Turn the Multipu

rpose knob to select the waveform le to recall.

The name of the le in the Recall option changes as you scroll.

5. Select the To option and specify which reference memory location to recall the waveform to (RefA or RefB).

6. Push the Recall FnnnnCHx.CSV option button, where FnnnnCHx.CSV is thenameofthewaveformle.

NOTE. For folders on the ash drive that contain one waveform le, select the

Save/Recall  Action Recall Waveform  To option and specify the reference memory location to recall the waveform to. The name of the le appears in the Recall option.(See page 92, Save/Recall.)

62 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

Using the Save

Function of the Front-Panel Save Button

You can set the front-panel save button to write data to the USB ash drive as an alternative function. To set the function of the button to save data, access the following options:

Save/Recall  Action - Save All

Utility  - more - page 1 of 2 Options  Printer Setup

Saves All to Files

The Saves A

ll to Files option lets you save the current oscilloscope information to les on the USB ash drive. A single Saves All to Files action uses less than 700 kB of space on the ash drive.

Before you can save data to the USB ash drive, you need to change the front-panel Save button

to the alternative Save function. To do so, select the

Save/Recall  Save All  Print Button  Saves All to Files option.

To save all the oscilloscope les to a USB ash drive, follow these steps:

1. Insert a USB ash drive into the USB Flash Drive port.

2. To change the folder designated as the current folder, push the Select Folder

option button.

The oscilloscope creates a new folder within the current folder each time you push the front panel Save button, and automatically generates the folder name.

3. Set up the oscilloscope to capture your data.

4. Push the Save button.

The oscilloscope creates a new folder on the ash drive and saves the screen image, waveform data, and setup data in separate les in that new folder, using the current oscilloscope and le format settings. The oscilloscope names the folder ALLnnnn. (See page 92, Save/Recall.)

To see a list of the les created by the Saves All To Files function, access the Utility File Utilities menu.

Source File name

Ch(x) FnnnnCHx.CSV, where nnnn is an automatically-generated

number, and x is the channel number

Math

FnnnnMTH.CSV

Ref(x) FnnnnRFx.CSV, where x is the reference memory letter

Screen Image FnnnnTEK.???, where ??? is the current le format

Settings FnnnnTEK.SET

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 63

USB Flash Drive and Device Ports

File type Contents and uses

.CSV Contains ASCII text strings that list the time (relative to the

trigger) and amplitude values for each of the 2500 waveform data points; y

ou can import .CSV les into many spreadsheet

and math analysis applications.

.SET Contains an ASCII text string listing of the oscilloscope settings;

refer to the TBS1000B, TDS2000C and TPS2000 Series Digital

Oscillosco

pes Programmer Manual to decode strings.

Screen imag

Import les

into spreadsheet and word processing applications;

type of image le depends on the application.

NOTE. The oscilloscope stores these settings until you change them, even if you

push the D

efault Setup button.

Saves Image to File

This option lets you save the oscilloscope screen image to a le named TEKnnnn

.???, where the .??? is the current Saves Image to File format. The

next table lists the le formats.

File format Extension Comments

BMP BMP

This bitmap format uses a lossless algorithm, and is compatible with most word processing and spreadsheet programs; this is the default.

JPEG JPG This bitmap format uses a lossy compression

algorithm, and is commonly used by digital cameras and by other digital photographic applications.

Bef

ore you can save data to the USB ash drive, you must change the Save button to the alternative Save function. To do so, select the Save/Recall  Save All  Print Button  Saves Image to File option.

To save a screen image to a USB ash drive, follow these steps:

1.I

nsert a USB ash drive into the USB Flash Drive port.

2. To change the folder designated as the current folder, push the Select Folder

option button.

3. Access the screen you want to save.

4. Push the front-panel Save button.

The oscilloscope saves the screen image and automatically generates the le name.

To see a list of the les created by the Save Image To File function, you can access the Utility  File Utilities menu.

64 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

USB Device Por

You can use a USB cable to connect the oscilloscope to a PC. The USB Device port is on the rear of the oscilloscope.

USB Device port

Installing the PC Communications Software on a PC

Before y

ou connect the oscilloscope to a PC with Tektronix OpenChoice PC Communications Software, you must download that software from www.tektronix.com/software and install it on your PC.

CAUTION. If you connect the oscilloscope to your PC before you install the

software, the PC will not recognize the oscilloscope. The PC will label the oscilloscope as an Unknown Device and not communicate with the oscilloscope. To av

oid this, install the software on your PC before you connect the oscilloscope

to your PC.

NOT

E. Be sure you have installed the latest version of PC Communications

software.

ftware for your oscilloscope is available through the Software nder on the

Tektronix web site.

To install the PC Communications software, follow these steps:

1. Run the OpenChoice Desktop software on the PC. The InstallShield wizard

appears on the screen.

2. Follow the on-screen directions.

3. Exit the InstallShield wizard.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 65

USB Flash Drive and Device Ports

Connecting to

aPC

After you install the software on your PC, you can connect the oscilloscope to the PC.

NOTE. Yo u mu

st install the software before you connect the oscilloscope to the

PC. (See page 65, Installing the PC Communications Software on a PC.)

To connect

the oscilloscope to the PC, follow these steps:

1. Power on the oscilloscope.

2. Insert one end of a USB cable into the USB Device port on the back of the

oscilloscope.

3. Power on the PC.

4. Insert the other end of the cable into the desired USB port on a PC.

5. If a Found New Hardware message appears, follow the on-screen directions

for the Found New Hardware wizard.

Do NOT search for the hardware to install on the web.

6. For a Windows XP systems, follow these steps:

a. If yo

u see the Tektronix PictBridge Device dialog box, click Cancel.

b. When prompted, select the option that tells Windows NOT to connect to

Win

dows Update, and click Next.

c. In the next window, you should see that you are installing software for

SB Test and Measurement Device. If you do not see USB Test and Measurement Device software, the OpenChoice Desktop software is not properly installed.

d. Select the option that installs the software automatically (the recommended

option) and click Next.

Windows will install the driver for your oscilloscope.

e. If you do not see the USB Test and Measurement Device in step c, or

if Windows cannot nd the software driver, the OpenChoice Desktop software is not properly installed.

In these situations, click Cancel to exit the Found New Hardware wizard. Do NOT allow the wizard to nish.

Unplug the USB cable from your oscilloscope and install the OpenChoice Desktop software.

Reconnect your oscilloscope to the PC and follow steps 6a, 6b, 6c, and 6d.

66 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

f. Click Finish.

g. If a dialog labeled Test and Measurement Device appears, select what you

would like Windows to do, and click OK.

7. For Windows 2000 systems:

a. When prompted, select the option that tells Windows to display a list

ofknowndriversandclickNext.

b. In the next window, select USB Test and Measurement Device. If you do

not see a USB Test and Measurement Device selection, the OpenChoice Desktop software is not properly installed.

c. In the next window, click Next to allow Windows to install the driver

for your oscilloscope.

Windows will install the driver for your oscilloscope.

d. If you do not see the USB Test and Measurement Device in step b, or if

Windows cannot nd the software driver, the software is not properly installed.

In these situations, click Cancel to exit the Found New Hardware wizard. Do NOT allow the wizard to nish.

Unplug the USB cable from your oscilloscope, and install the software.

Reconnect your oscilloscope to the PC and follow steps 7a, 7b, and 7c.

8. When prompted, click Finish.

9. If Windows asks you to insert a CD, click Cancel.

10. Run the PC Communi

cations software on your PC.

11. If the oscilloscope and PC do not communicate, refer to the PC Communications online help and documentation.

Connecting to a GPIB System

If you want to communicate between the oscilloscope and a GPIB system, use a TEK-USB-488 adapter and follow these steps:

1. Connect the oscilloscope to a TEK-USB-488 adapter with a USB cable.

The Accessories appendix has information on how to order an adapter. (See page 121, Accessories and Options.)

2. Connect the TEK-USB-488 adapter to your GPIB system with a GPIB cable.

3. Push the Utility  Options  GPIB Setup  Address option button to

select the appropriate address for the adapter, or use the multipurpose knob. The default GPIB address is 1.

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 67

USB Flash Drive and Device Ports

4. Run your GPIB so

ftware on your GPIB system.

5. If the oscilloscope and your GPIB system do not communicate, refer to the information o

n the software for your GPIB system, and to the user manual for

the TEK-USB-488 adapter to resolve the problem.

Command Entry

NOTE. For command information, refer to the TBS1000B, TDS2000C and

TPS2000 Series Digital Oscilloscopes Programmer Manual, 077-0444-XX. You can downlo

ad manuals at www.tektronix.com/manuals.

68 TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual

Reference

This chapter describes the menus and operating details associated with each front-panel menu button or control.

Acquire

Push the Acquire button to set acquisition parameters.

Options Settings Comments

Sample

Use to acquire and accurately display most waveforms; this is the default mode

Peak Detect Use to detect glitches and reduce the

possibility of aliasing

Average Use to reduce random or uncorrelated noise

in the signal display; the number of averages is selectable

Averages 4, 16, 64, 128

Select number of averages

Key Points

If you probe a noisy square wave signal that contains intermittent, narrow glitches, the waveform displayed will vary depending on the acquisition mode you choose.

Sample

Peak Detect Average

Sample. Use Sample acquisition mode to acqu

ire 2500 points and display them at

the horizontal scale (seconds/division) setting. Sample mode is the default mode.

Sample acquisition intervals (2500)

• Sample points

Sample mode acquires a single sample point in each interval.

The oscilloscope samples at the following rates:

TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 69

Reference

Maximum of 2 GS/

s for 100 MHz, 150, and 200 MHz models

Maximum of 1 GS/s for 50 MHz and 70 MHz models

At 100 ns and faster settings, this sample rate does not acquire 2500 points. In this case, a Digital Signal Processor interpolates points between the sampled points to make a 2500 point waveform record.

Peak Detect. Use Peak Detect acquisition mode to detect glitches as narrow as 10 ns and to limit the possibility of aliasing. This mode is effective when at the horizontal scale setting of 5 ms/division or slower.

Peak Detect acquisition intervals (1250)

• Sample points displayed

Peak Detect mode displays the highest and lowest acquired voltage in each interval.

NOTE. If you set the horizontal scale (seconds/division) setting to 2.5 ms/div or

faster, the acquisition mode changes to Sample because the sample rate is fast enough that Peak Detect is not necessary. The oscilloscop

edoesnotdisplaya

message to tell you that the mode was changed to Sample.

When there is enough waveform noise, a typical peak dete

ct display shows large black areas. The oscilloscope displays this area with diagonal lines to improve display performance.

Typical peak detect display

TBS1000B peak detect display

Average. Use Average acquisition mode to reduce random or uncorrelated noise in the signal you want to display. Data is acquired in sample mode, then a number of waveforms are averaged together.

Select the number of acquisitions (4, 16, 64, or 128) to average for the waveform.

Run/Stop Button. Push the Run/Stop button when you want the oscilloscope to continuously acquire waveforms. Push the button again to stop the acquisition.

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Single Button.

Push the Single (single sequence) button when you want the oscilloscope to acquire a single waveform and then stop. Each time you push the Single button, the oscilloscope begins to acquire another waveform. After the oscilloscope detects a trigger it completes the acquisition and stops.

Acquisition mode Single button

Sample, Peak Detect Sequence is complete when one acquisition is acquired

Average

Sequence is complete when the dened number of acquisitions is reached; (See page 69, Acquire .)

Scan Mode Display. You can use the Horizontal Scan acquisition mode (also called Roll mode) to continuously monitor signals that change slowly. The oscilloscope displays waveform updates from the left to the right of the screen and erases old points as it displays new points. A moving, one-division-wide blank section of the screen separates the new waveform points from the old.

The oscilloscope changes to the Scan acquisition mode when you turn the Horizontal Scale knob to 100 ms/div or slower, and select the Auto Mode option in the T

rigger Menu.

To disable Scan mode, push the Trigger Menu button and set the Mode option to Norma

Stopping the Acquisition. While the acquisition is running, the waveform display is live. Stopping the acquisition (when you push the Run/Stop button) freezes the display. In either mode, the waveform display can be scaled or positioned with the vertical and horizontal controls.

Autorange

WhenyouholdtheAutoset button for more than 1.5 seconds, the oscilloscope a

ctivates or deactivates the Autorange function.

This function automatically adjusts setup values to track a signal. If the signal c

hanges, the setup continues to track the signal. When you power on the

oscilloscope, autoranging is always inactive.

Options Comment

Autoranging

Activates or deactivates the Autorange function

Vertical and Horizontal Tracks and adjusts both axes

Vertical Only

Tracks and adjusts the Vertical scale; does not change the horizontal settings

Horizontal Only

Tracks and adjusts the Horizontal scale; does not change the vertical settings

Undo Autoranging

Causes the oscilloscope to recall the previous setup

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The following c

onditions cause autorange to adjust settings:

Too many or too few waveform periods for a clear display of the trigger source (excep

t when in Vertical Only)

Waveform amplitude too large or too small (except when in Horizontal Only)

Ideal trigger level changes

When you push the Autoset button for more than 1.5 seconds, the oscilloscope enters the autorange mode and adjusts controls to produce a usable display of the input signal.

Function Setting

Acquire mode

Sample

Display format

Display persist

Off

Horizontal position Adjusted

Horizontal view Main

Run/Stop

RUN

Horizontal scale (seconds/division)

Adjusted

Trigger coupling

Trigger holdoff

Minimum

Trigger level Adjusted

Trigger mode Edge

Vertical bandwidth Full

Vertical BW limit

Off

Vertical coupling

Vertical invert

Off

Vertical scale (volts/division)

Adjusted

The following changes to the setup of the oscilloscope deactivate autorange:

Vertical scale deactivates vertical autoranging

Horizontal scale deactivates horizontal autoranging

Display or remove a channel waveform

Trigger settings

Single sequence acquisition mode

Recall a setup

XY Display format

Persistence

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The Autorange f

unction is usually more useful than Autoset in the following

situations:

Analyzing a dynamically changing signal

Quickly comparing a sequence of several signals without adjusting the oscilloscope. This is very useful if you need to use two probes at the same time, or if you need to use a probe in one hand and are holding something else in the other.

Controlling which settings the oscilloscope automatically adjusts

If your signals vary in frequency, but have similar amplitudes, you can use Horizontal Only autoranging. The oscilloscope will adjust the horizontal settings, but leave the vertical settings unchanged. This way, you can visually estimate the amplitude of the signal without worrying about the vertical scale changing. Vertical Only autoranging works similarly, adjusting vertical parameters and leaving the horizontal settings unchanged.

Autoset

When you push the Autoset button once, the oscilloscope identies the type of waveform and adjusts controls to produce a usable display of the input signal.

When you press the button for more than 1.5 seconds, it will perform the Autorange function. It will displays the Autorange Menu and activate or deactivate the autoranging function.

Function Setting

Acquire mode

Adjusted to Sample or Peak Detect

Cursors Off

Display format Set to YT

Display type

Set to Dots for a video signal, set to Vectors for an FFT spectrum; otherwise, unchanged

Horizontal position Adjusted

Horizontal scale (seconds/division)

Adjusted

Trigger coupling

Adjusted to DC, Noise Reject, or HF Reject

Trigger holdoff

Minimum

Trigger level

Set to 50%

Trigger mode Auto

Trigger source

Adjusted; refer to the information after this table; cannot use Autoset on the Ext Trig signal

Trigger slope Adjusted

Trigger type Edge or Video

Trigger Video Polarity Normal

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Function Setting

Trigger Video Sync

Adjusted

Trigger Video Standard

Adjusted

Vertical ban

dwidth

Full

Vertical coupling

DC (if Groun

d was previously selected); AC for a video

signal; otherwise, unchanged

Volts/Div

Adjusted

The Autoset function examines all channels for signals and displays corresponding waveforms. Autoset also determines the trigger source based on the following conditions:

If multiple channels have signals, the oscilloscope displays the channel with the lowest frequency signal.

If no signals are found, then the oscilloscope displays the lowest-numbered channel when Autoset was invoked.

If no signals are found and no channels are displayed, then the oscilloscope displays and uses channel 1.

When you use Autoset and the oscilloscope cannot determine the signal type, the oscilloscope adjusts the horizontal and the vertical scales, then takes the Mean and P

k-to-Pk automatic measurements.

The Autoset function is usually more useful than Autorange in the following sit

uations:

Troubleshooting one stable signal

Automatically seeing measurements of your signal

Easily changing how the signal is presented. For example, viewing only one cycle of the waveform, or the rising edge of the waveform

Viewing video signals or FFT signals

Sine Wave

When you use the Autoset function and the oscilloscope determines that the signal is similar to a sine wave, the oscilloscope displays the following options:

Sine wave Details

Multi-cycle sine

Displays several cycles with appropriate vertical and horizontal scaling; the oscilloscope displays Cycle RMS, Frequency, Period, and Peak-to-Peak automatic measurements

Single-cycle sine

Sets the horizontal scale to display about one cycle of the waveform; the oscilloscope displays Mean, and Peak-to-Peak automatic measurements

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Sine wave Details

FFT

Converts the input time-domain signal into its frequency components and displays the result as a graph of frequency versus magnit

ude (spectrum). Refer to the FF T chapter

for more information

(See page 51, FFT.)

Undo Autoset

Causes the oscilloscope to recall the previous setup

Square Wave or Pulse

When you use the Autoset function and the oscilloscope determines that the signal is similar to a square wave or pulse, the oscilloscope displays the following options:

Square wave or Details

Multi-cycle square

Displays several cycles with appropriate vertical and horizontal scaling; the oscilloscope displays Pk-Pk, Mean, Period,

and Frequency automatic measurements

Single-cycle square

Sets the

horizontal scale to display about one cycle of the waveform; the oscilloscope displays Min, Max, Mean, and Positive Width automatic measurements

Rising edge

Displays the edge, and the Rise Time and Peak-to-Peak automatic measurements

Falling edge

Displays the edge, and the Fall Time and Peak-to-Peak automatic measurements

Undo Autoset

Causes the oscilloscope to recall the previous setup

Video Signal

When you use the Autoset function and the oscilloscope determines that the signal is a video signal, the oscilloscope displays the following options:

Video signal options Details

Fields All Fields

Displays several elds and the oscilloscope triggers on any eld

Lines All Lines

Displays one complete line with parts of the previous and ne

xt line; the oscilloscope triggers on any line

Lines Number

Displays one complete line with parts of the previous and next line; use the multipurpose knob to select a specic line number for the oscilloscope to use as a trigger

Odd Fields

Displays several elds and the oscilloscope triggers only on odd numbered elds

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Video signal op

tions

Details

Even Fields

Displays seve

ral elds and the oscilloscope triggers only on

even numbered elds

Undo Autoset

Causes the oscilloscope to recall the previous setup

NOTE. Vi d e o

autoset sets the Display Type option to Dot Mode.

Enable (EDU models only)

To further enhance the EDU models’ value in your educational environment, you can dis

able the EDU oscilloscope Autoset function. For example, in beginning labs where it is important for a student to learn the basic operation of the oscilloscope, disabling Autoset will help them apply their knowledge of an oscilloscope's operation instead of taking shortcuts with the Autoset button.

This feature is password controlled so Autoset can be disabled or enabled by pushing the front-panel Utility  on the side menu page 1 - more - page 1 of 3 on the side menu page 2  Autoset Enable Setting. Then on the side menu push either Autoset Enable or Autoset Disable and enter the appropriate password.

The factory default password is “1946”. The oscilloscope accepts passwords with four characters or digits. You can change the password with the Change

Passw

ord item in the autoset side menu.

Counter

Use t

he counter function from the Function button menu to simultaneously monitor two different signal frequencies. This feature provides a more accurate reading than is available with the oscilloscope’s frequency measurement.

tions

ttings

mments

,Off

n, Off

h1 Trigger

Use the multipurpose knob to set the t

rigger level.

Ch2 Trigger

Use the multipurpose knob to set the trigger level.

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Course (EDU models only)

Run labs r

ight on your oscilloscope. Also, read theory and procedures, and

capture your lab results right there as well.

Create your course on a

PC:

Create new course materials on a PC with separate PC-based software, which you can

download from www.tektronix.com/software or nd on a CD that accompanied your oscilloscope. After you create the materials, you can distribute them to TBS1000B-EDU oscilloscopes using a USB ash memory device.

You can also check at www.tektronix.com for a separate Courseware Web page, where you can nd copies of labs that others have created and uploaded to share.

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Load your course on your

TBS1000B-EDU:

To load a new cou

rse on a TBS1000B-EDU oscilloscope,

1. Insert the USB memory device that contains your course into the front-panel USB slot of you

r TBS1000B-EDU.

2. Push Utility  - more - page 1 of 3  Update Course.

3. Use the Multipurpose knob to scroll through the resulting le list and to

highlight the desired course folder. Course folders have an .xpkg sufx.

4. Push Upload Course to load the course into your oscilloscope.

Runlabsonyour

TBS1000B-EDU:

You can access the lab content via the dedicated Course button located on the on the front panel. Use the oscilloscope’s soft keys and the multipurpose knob to access up to 8 courses, which can have up to 30 labs each. Store up to 100 MB of course material on the oscilloscope. Once you choose a lab, you can review the overvie

w section, perform the lab using the step-by-step procedure, collect data, check and save the data results and generate reports that show the waveforms created for each step in the procedure.

To run your desired lab:

1. Push t

he Course front-panel button to enable operation of courseware directly

on the oscilloscope.

2. Push

a side-bezel menu item to choose the desired course from those listed.

3. Turn the Multipurpose knob to highlight the lab to run. Push the knob to

sel

ect the desired lab.

4. On the resulting screen, select the desired content from the side-bezel menu.

Rea

dtheOverview and the step-by-step Procedure.PushData Collection

and save results to a USB memory device.

5. Wh

en done running the lab, select Report from the side-bezel menu. Use the

resulting side-bezel menu to enter your student identication number.

6.P

ush OK from the side-bezel menu.

7. On the resulting course report, push Save on the side-bezel menu. This will

save the report onto an attached USB memory device.

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Course

Overview

Procedure

Data

Collection

Reports

Back

Cursor

Push the Cursor button to display the measurement cursors and Cursor Menu, andthenturntheMultipurpose knob to change the position of a cursor.

Options Settings Comments

Type

Time, Amplitude, Off Select and display the measurement

cursors; Time measures time, frequency, and amplitude; Amplitude measures amplitude, such as current or voltage

Source Ch1, Ch2, FFT, Math, Ref

A, Ref B

Choose the waveform on which to take the cursor measurements

Cursor readouts display the measurement



Displays the absolute value of the difference (delta) between the cursors

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Options Settings Comments

Cursor 1

Cursor 2

Displays selected cursor location (time is referenced to the trigger position, and amplitude to t

he reference connection)

For an FFT source, measures Frequency and Magnitude.

Delta () values vary with the following types of cursors:

Time cursors display t, 1/ t and V (or I, VV, and so on)

Amplitude c

ursors, and Magnitude cursors (FFT source) display V, I,

VV, and so on

Frequency

cursors (FFT source) display 1/Hz and dB

NOTE. The oscilloscope must display a waveform for the cursors and cursor

readouts to appear.

NOTE. Th

e oscilloscope displays the time and amplitude values for each

waveform when you use Time cursors.

Key Points

Cursor Movement. Use the multipurpose knob to move Cursor 1 or Cursor 2.

You can move the cursors only while the Cursor Menu is displayed. The active curs

or is represented by a solid line.

Amplitude cursors Time cursors

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Tektronix TBS1000B Series, TBS1000B-EDU Series User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual