Rigol DS2000 Series Digital Oscilloscope User’s Guide

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RIGOL

User’s Guide

DS2000 Series Digital Oscilloscope

May 2012

RIGOL Technologies, Inc.

RIGOL

Guaranty and Declaration

Trademark Information

RIGOL is a registered trademark of RIGOL Technologies, Inc.

Publication Number

UGA13104-1110

Notices

 RIGOL products are protected by patent law in and outside of P.R.C.  RIGOL reserves the right to modify or change parts of or all the specifications

and pricing policies at company’s sole decision.

 Information in this publication replaces all previously corresponding material.  RIGOL shall not be liable for losses caused by either incidental or consequential

in connection with the furnishing, use or performance of this manual as well as any information contained.

 Any part of this document is forbidden to be copied or photocopied or

rearranged without prior written approval of RIGOL.

Product Certification

RIGOL guarantee s this p roduct co nfo rms to the national and indus trial sta ndards i n China as well as the ISO9001:2008 standard and the ISO14001:2004 standard. Other international standard conformance certification is in progress.

If you have any problem or requirement when using our products, please contact RIGOL Technologies, Inc. or your local distributors, or visit: www.rigol.com.

DS2000 User’s Guide

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Safety Requirement

General Safety Summary

Please review the following safety precautions carefully before putting the instrument into operation so as to avoid any personal injuries or damages to the instrument and any pr oduct connected to it. To prevent po tential hazards, please use the instrument only specified by this manual.

Use Proper Power Cord.

Only the power cord designed for the instrument and authorized by local country could be used.

Ground The Instrument.

The instrument is grounded through the Protective Earth lead of the power cord. To avoid electric shock, it is essential to connect the earth terminal of power cord to the Protective Earth terminal before any inputs or outputs.

Connect the Probe Correctly.

Do not connect the ground lead to high voltage since it has the isobaric electric potential as ground.

Observe All Terminal Ratings.

To avoid fire or shock hazard, observe all ratings and markers on the instrument and check your manual for more information about ratings before connecting.

Use Proper Overvoltage Protection.

Make sure that no overvoltage (such as that caused by a thunderstorm) can reach the product, or else the operator might expose to danger of electrical shock.

Do Not Operate Without Covers.

Do not operate the instrument with covers or panels removed.

Use Proper Fuse.

Please use the specified fuses.

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Avoid Circuit or Wire Exposure.

Do not touch exposed junctions and components when the unit is powered.

Do Not Operate With Suspected Failures.

If you suspect damage occurs to the instrument, have it inspected by qualified service personnel before further operations. Any maintenance, adjustment or replacement especially to circuits or accessories must be performed by RIGOL authorized personnel.

Keep Well Ventilation.

Inadequate ventilation may cause increasing of temperature or damages to the device. So please keep well ventilated and inspect the intake and fan regularly.

Do Not Operate in Wet Conditions.

In order to avoid short circuiting to the interior of t he device or electric shock, please do not operate in a humid environment.

Do Not Operate in an Explosive Atmosphere.

In order to avoid damages to the device or personal injuries, it is important to operate the device away from an explosive atmosphere.

Keep Product Surfaces Clean and Dry.

To avoid the influence of dust and/or moisture in air, please keep the surface of device clean and dry.

Electrostatic Prevention.

Operate in an electrostatic discharge protective area environment to avoid damages induced by static discharges. Always ground both the internal and external conductors of the cable to release static before connecting.

Handling Safety

Please handle with care during transportation to avoid damages to buttons, knob interfaces and other parts on the panels.

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Hazardous

Please Refer to

Protective

Chassis

Test

Safety Terms and Symbols

Terms in this Manual. These terms may appear in this manual:

WARNING

Warning statements indicate the conditions or practices that could result in injury or loss of life.

CAUTION

Caution statements indicate the condi tions or pr actices that coul d result in damage to this product or other property.

Terms on the Product. These terms may appear on the Product:

DANGER indicates an injury or hazard may immediately happen. WARNING indicates an injury or hazard may be accessible potentially. CAUTION indicates a potential damage to the instrument or other property might

occur.

Symbols on the Product. These symbols may appear on the product:

Voltage

Manuals

Earth Terminal

Ground

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Measurement Category

DS2000 series digital oscilloscopes can make measurements in Measurement Category I.

WARNING

This oscilloscope can only be used for measurements within its specified measurement categories.

Measurement Category Definitions

Measurement category I is for measurements performed on circuits not directly connected to MAINS. Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits. In the latter case, transient stresses are variable; for that reason, the transient withstand capability of the equipment is made known to the user.

Measurement category II is for measurements performed on circuits directly connected to the low voltage installation. Examples are measurements on household appliances, portable tools and similar equipment.

Measurement category III is for measurements performed in the building installation. Examples are measurements on distribution boards, circuit-breakers, wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment, for example. Stationary motors with permanent connection to the fixed installation.

Measurement category IV is for measurements performed at the source of the low-voltage installation. Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units.

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Ventilation Requirement

This oscilloscope uses fan to force cooling. Please make sure that the air intake and exhaust areas are free from obstructions and have free air. When using the oscilloscope in a bench-top or rack setting, provide at least 10 cm clearance beside, above and behind the instrument for adequate ventilation.

WARNING

Inadequate ventilation may cause temperature increase which would damage the instrument. So please keep the instrument well ventilated during operation and inspect the intake and fan regularly.

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Working Environment

Temperature

Operating: 0℃ to +50℃ Non-operating: -20℃ to +70℃

Humidity

Under +35℃: ≤90％ relative humidity +35℃ to +40℃: ≤60％ relative humidity

WARNING

To avoid short circuit inside the instrument or electric shock, please do no t operate in humid environment.

Altitude

Operating: less than 3 km Non-operating: less than 15 km

Installation (overvoltage) Category

This product is powered by mains conforming to installation (overvoltage) category II.

WARNING

Make sure that no overvoltage (such as that caused by thunderbolt) can reach the product, or else the operator might expose to danger of electric shock.

Installation (overvoltage) Category Definitions

Installation (overvoltage) category I refers to signal level which is applicable to equipment measurement terminals connected to the source circuit. In these terminals, precautions are done to limit the transient voltage to the corresponding low level. Installation (overvoltage) category II refers to the local power distribution level which is applicable to equipment connected to the AC line (AC power).

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Pollution Degree

Degree 2

Pollution Degree Definitions

Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution has no influence. For example: a clean room or air-conditioned office environment. Pollution degree 2: Normally only dry, non-conductive pollution occurs. Occasionally a temporary conductivity caused by condensation may occur. For example: general indoor environment. Pollution degree 3: Conductive pollution occurs, or dry, non-conductive pollution occurs which becomes conductive due to condensation which is expected. For example: Sheltered outdoor environment. Pollution degree 4: Pollution that generates persistent conductivity through conductive dust, rain, or snow. For example: outdoor locations.

Safety Class

Class 1 – Grounded Product

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General Care and Cleaning

General Care:

Do not store or leave the instrument at places where the instrument will be exposed to direct sunlight for long periods of time.

Cleaning:

Clean the instrument regularly according to its operating conditions. To clean the exterior surface:

1. Disconnect the instrument from all power sources.

2. Clean the loose dust on the outsi de of the instrume nt with a lint - free cloth (with

mild detergent or water). When cleaning the LCD, take care to avoid scarifying it.

CAUTION

To avoid damages to the instrument, do not expose them to corrosive liquids.

WARNING

To avoid injury resulting from short circuit, make sure the instrument is completely dry before reconnecting it to a power source.

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Environmental Considerations

The following symbol indicates that this product complies with the applicable European Union requirements according to Directives 2002/96/EC on waste electrical and electronic equipment (WEEE).

Product End-of-Life Handling

The equipment may conta in substances that could be harmful to the environ ment or human health. In order to avoid release of such substances into the environment and harm to human health, we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately. Please contact your local authorities for disposal or recycling information.

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DS2000 Series Overview

DS2000 is a high-performance and low bandwidth digital oscilloscope developed on the basis of the Ultra Vision technique. DS2000, featuring rather deep memory depth, ultra-wide dynamic range, superb waveform capture rate and all-round trigger functions as well as hardware waveform record function and good display effect, is an invaluable debug instrument in various fields (such as communication, cosmonautics, national defense, embedded system, computer, research and education) and is the one with the most complete functions and most outstanding specifica t ion among the digital oscilloscopes with lower than 200 MHz bandwidth.

Main features:

 200 MHz, 100 MHz and 70 MHz bandwidth.  Ultra Vision technique.  2 GSa/s maximum real-time sample rate.  50,000 wfms/s (dots display) waveform capture rate.  Real-time hardware waveform recording, waveform playback, record open

(constant on) and waveform analysis functions. Up to 65,000 frames of waveform can be recorded.

 56 Mpts maximum memory depth (option) and 14 Mpts standard memory

depth.

 256 degree gray scale display.  Low noise, 500 μV/div to 10 V/div ultra-wide vertical dynamic range.  8.0 inches, WVGA (800*480) 160,000 color TFT LCD, with ultra-wide screen,

vivid picture, low power consumption and long service life.

 Adjustable brightness of analog channel waveform.  Auto setting of waveform display (AUTO).  16 kinds of trigger functions including multiple protocol triggers.  Standard parallel decoding and multiple serial decoding options.  Auto measurements of 24 waveform parameters and measurement functions

with statistic.

 Precise delayed sweep function.  Built-in FFT function.  Pass/Fail test function.  Multiple waveform math operation functions.  Standard configuration interfaces: USB Device, USB Host, LAN and GPIB

(optional).

 Support USB storage device and PictBrige printer.

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 Conform to LXI-C instrument standards. Enable quick, economic and efficient

creation and reconfiguration of test system.

 Support remote command control.  Embedded help enables easier information access.  Support multiple languages and Chinese/English input.  Novel and delicate industrial design and easier operation.

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1 Quick Start

Provide information about preparations

2 To Set the Vertical System

Introduce the functions of the vertical

3 To Set the Horizontal System

5 To Trigger the Oscilloscope

6 To Make Measurements

Introduce how to make math operation ,

7 Protocol Decoding

Introduce how to decode the input signal

8 Reference Waveform

9 Pass/Fail Test

Introduce how to monitor the input signal

10 Waveform Record

Introduce how to analyze the input signal

12 Store and Recall

Introduce how to store and recall the

13 System Function Setting

Introduce how to set the remote interface

14 Remote Control

16 Specifications

Provide the specifications and general

17 Appendix

Document Overview

4 To Set the Sample System Introduce the functions of the sample

before using the instrument and a brief introduction of the instrument.

system of the oscilloscope. Introduce the functions of the horizontal system of the oscilloscope.

system of the oscilloscope. Introduce the trigger mode, trigg er coupling, trigger holdoff, external trigger and various trigger types of the oscilloscope.

cursor measurement and auto measurement.

using those common protocols. Introduce how to compare the input waveform with the reference waveform.

using the Pass/Fail test.

11 Display Control Introduce how to control the display of the

15 Troubleshooting Introduce how to deal with common failures

DS2000 User’s Guide

using waveform record. oscilloscope. measurement result and the setting of the

oscilloscope. and system-related functions.

Introduce how to control the oscilloscope remotely.

of the oscilloscope. specifica t ions of the oscilloscope.

Provide common information such as options and accessories.

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Logo

Knob

Logo

Knob

Format Conventions in this Manual:

Front panel key: denoted by the format of “Text Box + Button Name (Bold)”, for example, Storage. Menu softkey: denoted by the format of “Character Shading + Menu Word (Bold)”, for example, Storage. Operation steps: denoted by the arrow “”, for example, Storage  Storage.

Knob:

HORIZONTAL SCALE

HORIZONTAL POSITION

Multi-function Knob Navigation Knob

Horizontal Scale Knob

Horizontal Position Knob

VERTICAL VERTICAL

SCALE

POSITION TRIGGER

LEVEL

Vertical Scale Knob Vertical Position Knob

Trigger Level Knob

Content Conventions in this Manual:

This manual takes DS2202 f o r example and the descriptions here have contained all the functions and performances of other models. DS2000 series includes the following models:

Model Analog Bandwidth Channels

DS2072 70 MHz 2 DS2102 100 MHz 2 DS2202 200 MHz 2

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Contents

Guaranty and Declaration .......................................................................... I

Safety Requirement ................................................................................. II

General Safety Summary ............................................................................ II

Safety Ter ms and Symbols ......................................................................... IV

Measurement Category ............................................................................... V

Ventilation Requirement ............................................................................. VI

Working Environment .............................................................................. VII

General Care and Cleaning ......................................................................... IX

Environmental Considerations...................................................................... X

DS2000 Series Overview .......................................................................... XI

Document Overview .............................................................................. XIII

1 Quick Start .......................................................................................... 1-1

General Inspection .................................................................................. 1-2

Appearance and Dimensions .................................................................... 1-3

To Prepare the Oscilloscope for Use .......................................................... 1-4

To Adjust the Supporting Legs ........................................................... 1-4

To Connect to Power Supply .............................................................. 1-5

Power-on Inspection ......................................................................... 1-6

To Connect the Probe ........................................................................ 1-7

Function Inspection .......................................................................... 1-8

Probe Compensation ....................................................................... 1-10

Panel Overview ............................................................................. 1-11

Front

Rear Panel Overview .............................................................................. 1-12

Front Panel Function Overview ............................................................... 1-14

VERTICAL ...................................................................................... 1-14

HORIZONTAL ................................................................................. 1-15

TRIGGER ....................................................................................... 1-16

CLEAR ........................................................................................... 1-16

RUN/STOP ..................................................................................... 1-16

SINGLE .......................................................................................... 1-17

AUTO ............................................................................................. 1-17

Knob .............................................................................................. 1-18

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Navigation Knob ............................................................................. 1-18

MENU ............................................................................................ 1-19

Record ........................................................................................... 1-20

Print .............................................................................................. 1-20

User Interface ....................................................................................... 1-21

To Use the Security Lock ........................................................................ 1-25

To Use the Built-in Help System .............................................................. 1-26

2 To Set the Vertical System ...................................................................2-1

To Enable the Channel ............................................................................. 2-2

Channel Coupling .................................................................................... 2-3

Bandwidth Limit ...................................................................................... 2-3

Probe Ratio ............................................................................................. 2-4

Waveform Invert ..................................................................................... 2-5

Vertical Scale .......................................................................................... 2-5

Vertical Expansion ................................................................................... 2-6

Amplitude Unit ........................................................................................ 2-6

Channel Label ......................................................................................... 2-7

Delay Calibration ..................................................................................... 2-8

3 To Set the Horizontal System ..............................................................3-1

Delayed Sweep ....................................................................................... 3-2

Time Base Mode ..................................................................................... 3-4

Y-T Mode ......................................................................................... 3-4

X-Y Mode ......................................................................................... 3-5

Roll Mode ......................................................................................... 3-8

Horizontal Scale ...................................................................................... 3-9

Horizontal Reference ............................................................................. 3-10

4 To Set the Sample System ...................................................................4-1

Acquisition Mode ..................................................................................... 4-2

Normal ............................................................................................ 4-2

Average ........................................................................................... 4-2

Peak Detect ...................................................................................... 4-4

High Resolution ................................................................................ 4-4

Sample Mode .......................................................................................... 4-5

Sample Rate ........................................................................................... 4-6

Memory Depth ........................................................................................ 4-8

Antialiasing ............................................................................................. 4-9

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5 To Trigger the Oscilloscope ................................................................. 5-1

Trigger Source......................................................................................... 5-2

Trigger Mode ........................................................................................... 5-3

Trigger Coupling ...................................................................................... 5-5

Trigger Holdoff ........................................................................................ 5-6

Noise Rejection ....................................................................................... 5-7

Trigger Type ............................................................................................ 5-8

Edge Trigger ..................................................................................... 5-9

Pulse Trigger .................................................................................. 5-11

Runt Trigger ................................................................................... 5-13

Windows Trigger ............................................................................. 5-16

Nth Edge Trigger ............................................................................ 5-18

Slope Trigger .................................................................................. 5-20

Video Trigger .................................................................................. 5-23

Pattern Trigger ............................................................................... 5-25

Delay Trigger .................................................................................. 5-27

TimeOut Trigger ............................................................................. 5-29

Duration Trigger ............................................................................. 5-31

Setup/Hold Trigger .......................................................................... 5-33

RS232 Trigger ................................................................................. 5-35

I2C Trigger ..................................................................................... 5-37

SPI Trigger ..................................................................................... 5-40

USB Trigger .................................................................................... 5-42

Trigger Output Connector ....................................................................... 5-44

6 To Make Measurements ...................................................................... 6-1

Math Operation ....................................................................................... 6-2

Addition ........................................................................................... 6-2

Substraction ..................................................................................... 6-3

Multiplication .................................................................................... 6-3

Division ............................................................................................ 6-4

FFT .................................................................................................. 6-5

Logic Operation ................................................................................ 6-8

Advanced Operation ........................................................................ 6-10

Auto Measurement ................................................................................ 6-13

Quick Measurement after AUTO ....................................................... 6-13

One-key Measurement of 24 Parameters .......................................... 6-15

Frequency Counter Measurement ..................................................... 6-21

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Measurement Setting ...................................................................... 6-22

To Clear the Measurement ............................................................... 6-24

All Measurement ............................................................................. 6-25

Statistic Function ............................................................................ 6-26

Measurement History ...................................................................... 6-27

Cursor Measurement ............................................................................. 6-28

Manual Mode .................................................................................. 6-29

Track Mode .................................................................................... 6-32

Auto Mode ..................................................................................... 6-35

7 Protocol Decoding ...............................................................................7-1

Parallel Decoding ..................................................................................... 7-2

RS232 Decoding (Option) ........................................................................ 7-5

I2C Decoding (Option) ........................................................................... 7-10

SPI Decoding (Option) ........................................................................... 7-13

8 Reference Waveform ...........................................................................8-1

To Enable REF Function ........................................................................... 8-2

To Set the Color ...................................................................................... 8-3

To Select REF Source ............................................................................... 8-3

To Save to Internal Memory ..................................................................... 8-3

To Adjust REF Waveform Display .............................................................. 8-4

To Export to Internal or External Memory .................................................. 8-4

To Import from Internal or External Memory ............................................. 8-4

9 Pass/Fail Test ......................................................................................9-1

To Enable Pass/Fail Test ........................................................................... 9-2

To Select Source ..................................................................................... 9-2

Mask Range ............................................................................................ 9-2

Test and Ouput ....................................................................................... 9-3

To Save the Test Mask ............................................................................. 9-4

To Load the Test Mask ............................................................................. 9-5

10 Waveform Record ........................................................................... 10-1

Waveform Record .................................................................................. 10-2

Record Constant On .............................................................................. 10-4

Waveform Playback ............................................................................... 10-6

Waveform Analysis ................................................................................ 10-8

Analysis Based on Trace ................................................................ 10-12

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Analysis Based on Pass/Fail Mask ................................................... 10-13

11 Display Control ................................................................................ 11-1

To Select the Display Type ..................................................................... 11-2

To Set the Persistence Time ................................................................... 11-3

To Set the Waveform Intensity ............................................................... 11-5

To Set the Screen Grid ........................................................................... 11-5

To Set the Grid Brightness ...................................................................... 11-5

To Set the Menu Display ........................................................................ 11-5

12 Store and Recall .............................................................................. 12-1

Storage System ..................................................................................... 12-2

Storage Type ......................................................................................... 12-3

Internal Storage and Recall .................................................................... 12-5

External Storage and Recall .................................................................... 12-7

Disk Management ................................................................................ 12-10

To Select File Type ........................................................................ 12-11

To Create a New File or Folder ....................................................... 12-12

To Delete a File or Folder............................................................... 12-15

To Rename a File or Folder ............................................................ 12-16

To Clear the Local Memory ............................................................ 12-16

Factory ............................................................................................... 12-17

13 System Function Setting ................................................................. 13-1

Remote Interface Configuration .............................................................. 13-2

LAN Setting .................................................................................... 13-2

USB Device .................................................................................... 13-6

To Set the GPIB Address ................................................................. 13-6

System-related ...................................................................................... 13-7

Sound ............................................................................................ 13-7

Language ....................................................................................... 13-7

System Information ........................................................................ 13-8

Power-off Recall .............................................................................. 13-8

System Time .................................................................................. 13-9

Screen ......................................................................................... 13-10

Self-calibration .............................................................................. 13-11

Aux Output .................................................................................. 13-12

Option Management ..................................................................... 13-13

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14 Remote Control ............................................................................... 14-1

Remote Control via USB ......................................................................... 14-2

Remote Control via LAN ......................................................................... 14-6

Remote Control via GPIB ........................................................................ 14-9

15 Troubleshooting .............................................................................. 15-1

16 Specifications ................................................................................. 16-1

17 Appendix ......................................................................................... 17-1

Appendix A: Accessories and Options ...................................................... 17-1

Appendix B: Warranty ............................................................................ 17-2

Appendix C: Any Question or Comment? ................................................. 17-3

Index ......................................................................................................... 1

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1 Quick Start RIGOL

1-1

1 Quick Start

This chapter introduces the preparations when using the oscilloscope for the first time, the front panel, rear panel and user interface of the oscilloscope as well as the using method of the built-in help system.

The contents of this chapter:

 General Inspection  Appearance and Dimensions  To Prepare the Oscilloscope for Use  Front  Rear Panel Overview  Front Panel Function Overview  User Interface  To Use the Security Lock  To Use the Built-in Help System

Panel Overview

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General Inspection

1. Inspect the shipping container for damage.

Keep the damaged shipping container or cushioning material until the contents of the shipment have been checked for completeness and the instrument has passed both electrical and mechanical tests.

The consigner or carrier shall be liable for the damage to instrument resulting from shipment. RIGOL would not be responsible for free maintenance/rework or replacement of the unit.

2. Inspect the instrument.

In case of any damage, or defect, or failure, notify your RIGOL sales representative.

3. Check the Accessories

Please check the accessories according to the packing lists. If the accessories are incomplete or damaged, please contact your RIGOL sales representative.

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Appearance and Dimensions

Figure 1-1 Front View Unit: mm

Figure 1-2 Side View Unit: mm

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To Prepare the Oscilloscope for Use

To Adjust the Supporting Legs

Adjust the supporting legs properly to use them as stands to tilt the oscilloscope upwards for stable placement of the oscilloscope as well as better operation and observation.

Figure 1-3 To Adjust the Supporting Legs

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To Connect to Power Supply

The power requirements of DS2000 are 100-240 V, 45-440 Hz. Please use the power cord supplied with the accessories to connect the oscilloscope to the power source.

At this point, the power key breathing state.

Power Socket

Figure 1-4 To Connect to Power Source

at the lower-left corner of the front panel is in

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Power-on Inspection

When the oscilloscope is energized, press the power key at the lower-left corner of the front panel to start the oscilloscope. During the start-up process, the

oscilloscope performs a series of self-tests and you can hear the sound of relay switching. After the self-test, the start-up image is displayed.

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To Connect the Probe

RIGOL provides passive probes for the DS2000 series oscilloscopes. For detailed technical information of the probes, please refer to the corresponding Probe User’s Guide. The following are the probes recommended for this oscilloscope.

Model Description

RP3300 350 MHz, passive probe, standard RP3500A 500 MHz, passive probe, optional

Connect the Probe:

1. Connect the BNC terminal of the probe to a channel BNC connector of the

oscilloscope at the front panel.

2. Connect the probe tip to the circuit point to be tested and connect the ground alligator clip of the probe to the circuit ground terminal.

Figure 1-5 To Connect the Probe

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Function Inspection

1. Press Storage  Default to restore the instrument to its defaul t configuration.

2. Connect the ground alligator clip of the probe to the “Ground Terminal” under the probe compensation signal output terminal.

3. Use the probe to connect the input terminal of CH1 of the oscilloscope a n d the

“Compensation Signal Output Terminal” of the probe.

Compensation Signal Output Terminal Ground Terminal

Figure 1-6 To Use the Compensation Signal

4. Press AUTO.

5. Observe the waveform on the display. In normal condition, the display should be

a square waveform as shown in the figure below:

Figure 1-7 Square Waveform

6. Use the same method to test the other channels. If the square waveforms actually shown do not match that in the figure above, please perform “Probe

Compensation” in the next section.

WARNING

To avoid electric shock during the use of probe, please make sure that the insulated wire of the probe is in good condition and do not touch the metallic part of the probe when the probe is connected to high voltage source.

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Tip

The signal output from the probe compensation connector can only be used for probe compensation adjustment and can not be used for calibration.

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Probe Compensation

When the probes are used for the first time, you should compensate the probes to match the input channels of the oscilloscope. Non-compensated or poorly compensated probes may cause measurement inaccuracy or error. The probe compensation procedures are as follows.

1. Perform steps 1, 2, 3 and 4 of “Function Inspection” in the previous section.

2. Check the waveforms displayed and compare them with the following.

3. Use a nonmetallic driver to adjust the low-frequency compensation adjustment

Over compensated Perfectly compensated Under compensated

Figure 1-8 Probe Compensation

hole on the probe until the waveform displayed is as the “Perfectly compensated” in the figure above.

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Front Panel Overview

3 4 5 6 7 8 9 10 1 2

11 12 13 14 15 16 17 18 19 20

Figure 1-9 Front Panel Overview

Table 1-1 Front Panel Description

No. Description No. Description

1 Menu 11 Power Key 2 LCD 12 USB HOST 3 Multi-function Knob 13 HORIZONTAL 4 Function Menu Keys 14 Function Setting Menu Softkeys 5 Navigation Knob 15 VERTICAL 6 CLEAR 16 Analog Channel Input Area 7 AUTO 17 Waveform Record/Playback 8 RUN/STOP 18 TRIGGER 9 SINGLE 19 EXT TRIG Input Terminal 10 Help&Print 20 Probe Compensation Signal Output

Terminal/Ground Terminal

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Rear Panel Overview

1 2 3

7 6 5 4

Figure 1-10 Rear Panel Overview

1. Handle

Pull up the handle vertically for easy carrying of the instrument. When you do not need the handle, press it down.

2. LAN

Connect the instrument to the network via this interface for remote control. This oscilloscope conforms to the LXI-C class instrument standards and can quickly build test system with other instruments.

3. USB DEVICE

PictBridge printer or PC can be connected via this interface to print waveform data or control the instrument using PC software.

4. Trigger Out

The oscilloscope outputs a signal that can reflect the current capture rate of the

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oscilloscope at each trigger via this interface.

5. Lock Hole

You can lock the instrument to a fixed location using the security lock (please buy it yourself) via the lock hole.

6. AC Power Socket

AC power input terminal. The power requirements of this oscilloscope are 100-240 V, 45-440 Hz, CAT II. Use the power cord provided with the accessories to connect the instrument to AC power. Th e n , you can press the power key at the front panel to start the instrument.

7. Fuse

If a new fuse is required, please use the specified fuse (250V, T2A).

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Front Panel Function Overview

VERTICAL

CH1, CH2: analog input channels. The 2

channels are marked by different colors which are also used to mark both the corresponding waveforms on the scr een and the cha nnel inp ut connectors. Press any key to open the corresponding channel menu and pr ess again to turn off the channel.

MATH: press this key to open the math

operation menu under which add, subtract, multiply, divide, FFT, logic and advanced operations are provided.

REF: press this key to enable the reference waveform function to compare the waveform actually tested with the reference waveform to decide circuit failures.

Vertical

waveform. Turn clockwise to increase the position and turn counterclockwise to decrease. During the modification, the waveform would move up and down and the

position message (e.g. would change accordingly. Press down this knob to quickly reset the vertical position

to zero.

VERTICAL

clockwise to decrease the scale and turn counterclockwise to increase. During the modification, the amplitude of the waveform would enlarge or reduce and the scale

information (e.g. accordingly. Press down this knob to quickly switch the vertical scale adjustment

modes between “Coarse” and “Fine”.

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POSITION: modify the vertical position of the current channel

) at the lower-left corner of the screen

SCALE: modify the vertical scale of the current channel. Turn

) at the lower side of the screen would change

DS2000 User’s Guide

1 Quick Start RIGOL

Decode1, Decode2: decoding function keys. Press the corresponding key to open the decoding function menu. DS2000 supports parallel decoding and protocol decodings.

HORIZONTAL

MENU: press this key to open the

horizontal control menu under which to turn on or off the delayed sweep function, switch between diffe rent

time base modes, switch between “Coarse” and “Fine” adjustment of scale as well as modify the horizontal reference setting.

HORIZONTAL

reduce the time base and turn counterclockwise to increase the time base. During the modification, waveforms of all the channels will be displayed in expanded or

SCALE: modify the horizontal time base. Turn clockwise to

compressed mode and the time base message (e.g. ) at the upper side of the screen would change accordingly. Press down this knob to quickly switch to

delayed sweep state.

HORIZONTAL

POSITION: modify the trigger position. The trigger point

would move left or right relative to the center of the screen when you turn the knob. During the modification, waveforms of all the channels would move left or right and

the trigger position message (e.g.

) at the upper-right corner of

the screen would change accordingly . Press down this knob to quickly reset the trigger position (or the delayed sweep position).

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RIGOL 1 Quick Start

TRIGGER

MODE: press this key to switch the trigger mode to Auto, Normal or Single and the corresponding

state backlight of the current trigger mode would be illuminated.

TRIGGER

Turn clockwise to increase the level and turn counterclockwise to reduce the level. During the modificat ion , the trigger level line would move up

and down and the value in the trigger level message box (e.g. ) at the lower-left corner of the screen would change accordingly. Press down the

knob to quickly reset the trigger level to zero point.

LEVEL: modify the trigger level.

MENU: press this key to open the trigger operation menu. This oscilloscope

provides various trigger types.

FORCE: in Normal and Single trigger modes, press this key to generate a tr igger signal forcefully.

CLEAR

Press this key to clear all the w aveforms on the screen. If the oscilloscope is in “RUN” state, new waveforms will still be displayed.

RUN/STOP

Press this key to set the state of the oscilloscope to “RUN” or “STOP”. In “RUN” state, the key is illuminated in yellow. In “STOP” state, the key is illuminated in red.

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1 Quick Start RIGOL

SINGLE

Press this key to set the trigger mode to “Single”. In single trigger mode, press FORCE to generate a trigger signal immediately.

AUTO

Press this key to enable the waveform auto setting function. The oscilloscope will automatically adjust the vertical scale, horizontal time base and trigger mode according to the input signal to realize optimum wav eform display. Note that auto setting requires that the frequency of the signal under test should be no lower than 50 H z, the duty cycle be greater than 1% and the amplitude be at least 20 mVpp. If the parameters exceed these limits, “Auto failed！” would be displayed after pressing this key and the quick parameter measur ement menu migh t not be displayed.

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RIGOL 1 Quick Start

Knob

Adjust waveform brightness:

In non-menu-operation mode (menu is hidden), turn thi s knob to adjust the brightness of waveform display. The adjustable range is from 0% to 100%. Turn clockwise to increase the brightness and counterclockwise to reduce.

Multifunction Knob (the backlight goes on during operation):

In menu operation, press any menu softkey and turn the knob to switch the desired submenu under this menu and then press down the knob to select the current submenu. It can also be used to modify parameters and input filename.

Press down this knob to reset the brightness to 50%. You can also press Display  WaveIntensity and use the knob to adjust the waveform brightness.

Navigation Knob

This knob provides quick Adjust/Locate function for numerical parameters with relatively larger settable range. Turn clockwise (counterclockwise) to increase (reduce) the value. The inner knob is used for fine adjustment and the outer knob for coarse adjustment.

For example, this knob can be used to quickly locate the waveform f rame (“Curr ent Frame” menu) to be played back in the waveform playback function. Similar menus include trigger holdoff, pulse width setting, slope time etc.

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1 Quick Start RIGOL

Record

Stop Play/Pause Record

Record: press this key to start recording the waveform. The backlight is illuminated in red. Besides, when record constant on (Open) is enabled, the backl ight will also be illuminated.

Play/Pause: in stop or pause state, press this key to play back the waveform and press again to pause the play. The backlight is illuminated in yellow.

Stop: press this key to stop the wavef orm being recorded or being played back. The backlight is illuminated in orange.

Print

Press this key to execute the print f unction or save the screen in the USB storage device. If a PictBridge printer is currently connected and the printer is in idle state, pressing this key will execute the print function. If no printer but a USB storage device is currently connected, pressing this key will save the screen to the USB storage device in “.bmp” format (if the current storage type is picture, the screen will be saved in the USB storage device in picture format). When printer and USB storage device are connected at the same time, the printer enjoys higher priority.

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1 Quick Start RIGOL

12.CH1垂直档位 13.CH2垂直档位 14.消息框 15.通知区域 16.操作菜单

User Interface

DS2000 provides 8.0 inches, WVGA (800*480) 160,000 color TFT LCD. What is worth mentioning is that the 14-grid ultra-wide screen enables you to view “longer” waveform.

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16

Figure 1-11 User Interface

1. Auto Measurement Items

Provide 12 horizontal (HORIZONTAL) and 12 vertical (VERTICAL) measurement parameters. Press the softkey at the left of the screen to activate the corresponding measurement item. Press MENU continuously to switch between the horizontal and vertical parameters.

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RIGOL 1 Quick Start

2. Channel Label/Waveform

Different channels are marked by differ ent colors and the color of the w av eform complies with the color of the channel.

3. Status

Available states include RUN, STOP, T’D (triggered), WAIT and AUTO.

4. Horizontal Time Base

 Represent the time per grid on the horizontal axis on the screen.  Use HORIZONTAL

SCALE to modify this parameter. The range

available is from 2.000 ns to 1.000 ks.

5. Sample Rate/Memory Depth

 Display the current sample rate and memory depth of the oscilloscope.  Use HORIZONTAL

SCALE to modify this parameter.

6. Waveform Memory

Provide the schematic diagram of the memory position of the waveform currently on the screen.

waveform on the

screen

7. Trigger Position

Display the trigger position of the waveform in the waveform memory and on the screen.

8. Trigger Position

Use HORIZONTAL

POSITION to modify this parameter. Press down the

knob to automatically set the parameter to zero.

9. Trigger Type

Display the currently selected trigger type and trigger condition setting. Different labels are displayed when different trigger types are selected.

For example:

represents triggering on the rising edge in “Edge” trigger.

10. Trigger Source

Display the trigger source currently selected (CH1, CH2, EXT, or AC Line). Different labels are displayed when different trigger sources are selected and the color of the trigger parameter area will change accordingly. For example:

denotes that CH1 is selected as the trigger sou rce.

11. Trigger Level



at the right of the screen is the trigger level label and the trigger level

value is displayed at the upper-right corner of the screen.

 When using TRIGGER

level value will change with the up and down of

LEVEL to modify the trigger level, the trigger

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1 Quick Start RIGOL

Note: in slope trigger, runt trigger and windows trigger, there are two trigger level labels (

and ).

12. CH1 Vertical Scale

 Display the voltage value per grid of CH1 waveform vertically.  Use VIRTICAL

SCALE to modify this parameter.

 The following labels will be displayed according to the curr ent c hannel

setting: channel coupling (e.g.

) and bandwidth limit (e.g. ).

13. CH2 Vertical Scale

 Display the voltage value per grid of CH2 waveform vertically.  Use VIRTICAL

SCALE to modify this parameter.

 The following labels will be displayed according to the curr ent c hannel

setting: channel coupling (e.g.

) and bandwidth limit (e.g. ).

14. Message Box

Display prompt messages.

15. Notification Area

Display system time, sound icon and USB storage device icon.

 System Time: displayed in “hh:mm (hour:minute)” format. When

printing or storing the waveform, the output file will contain this time message. Press Utility  System  System Time to set through the following format: yyyy-mm-dd hh-mm-ss (year-month-date hour-minute-second)

 Sound Icon: when sound is enabled,

will be displayed. Press Utility 

Sound to enable or disable the sound.

 USB Storage device Icon: when a USB storage device is detected, will

be displayed.

16. Operation MENU

Press any softkey to activate the corresponding menu. The following symbols might be displayed in the menu:

Denote that items. The backlight of

at the front panel can be used to select parameter

turns on when parameter selection is valid. Denote that backlight of Denote that you can use the Navigation Knob to quickly

can be used to modify parameter values. The

turns on when parameter input is valid.

adjust/locate parameters. Denote that you can use down

to select the parameter.

to adjust the parameter and then pre ss

Denote that the current menu has several options.

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RIGOL 1 Quick Start

Denote that the current menu has a lower level menu. Press this key to return to the previous menu.

Note: the following directi o n keys might appear in the grid at the lower -left corner of the menu bar:

Denote that you can open the next page menu. Denote that you can open the previous page menu.

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To Use the Security Lock

If needed, you can use the security lock (please buy it yourself) to lock the oscilloscope to a fixed location. The method is as follows, align the lock with the lock hole and plug it into the lock hole vertically, turn the key clockwise to lock the oscilloscope and then pull the key out.

Security Lock Hole

Figure 1-12 To Use the Security Lock

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RIGOL 1 Quick Start

To Use the Built-in Help System

The help system of this oscilloscope provides instructions for all the function keys (including menu keys) at the front panel. Press Help to open the help interface and press again to close the interface. The help interface mainly consists of two parts. The left is “Help Options” and you can use “Button” or “Index” mode to select. The right is “Help Display Area”.

Help Options Help Display Area

Figure 1-13 Help Information

Button:

Default mode. In this mode, you can press the button (except the power key the knob

and the menu page up/down key / ) or rotate the navigation

knob at the front panel directly to get the corresponding help information in the “Help Display Area”. Use

to select “To Index” and then press the knob to switch to Index mode.

Index:

In this mode, use

to select the item that needs to get help (for example, “Band Width”). The item currently selected is displayed in brown. Press the knob to get the corresponding help information in the “Help Display Area”. Use

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to select “To Button” and then press the knob to switch to Button mode.

DS2000 User’s Guide

2 To Set the Vertical System RIGOL

2-1

2 To Set the Vertical System

The contents of this chapter:

 To Enable the Channel  Channel Coupling  Bandwidth Limit  Probe Ratio  Waveform Invert  Vertical Scale  Vertical Expansion  Amplitude Unit  Channel Label  Delay Calibration

DS2000 User’s Guide

RIGOL 2 To Set the Vertical System

To Enable the Channel

DS2000 provides 2 analog input channels (CH1 and CH2) and provides independent vertical control system for each channel. As the vertical system setting methods of the 2 channels are completely the same, this chapter takes CH1 as an example to introduce the setting method of the vertical system.

Connect a signal to the channel connector of any channel (for example, CH1) and then press CH1 in the vertical control area (VERTICAL) at the front panel to enable CH1.

Screen:

The channel setting menu is d isplayed at the right side of the screen and the chan nel label at the bottom of the screen (as shown in the figure below) is highlighted. The information displayed in the channel label is related to the current channel setting.

After the channel is turned on, modify the parameters such as the vertical scale, the horizontal time base and the trigger mode according to the input signal to make the waveform display easy to observe and measure.

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2 To Set the Vertical System RIGOL

Channel Coupling

Set the coupling mode to filter out the undesired signals. For example, the signal under test is a square waveform with DC offset.  When the coupling mode is “DC”: the DC and AC compo nents of the signal under

test can both pass the channel.

 When the coupling mode is “AC”: the DC components of the signal under test

are blocked.

 When the coupling mode is “GND”: the DC and AC components of the signal

under test are both blocked.

Press CH1  Coupling and use to select the desired coupling mode (the default is DC). The current coupling mode is displayed in the channel label at the bottom of the screen. You can also press Coupling continuously to switch the coupling mode.

Bandwidth Limit

Set the bandwidth limit to reduce display noise. For example, the signal under test is a pulse with high frequency oscillation.  When bandwidth limit is disabled, the high frequency components of the signal

under test can pass the channel.

 Enable bandwidth limit and limit the bandwidth to 20 MHz or 100 MHz, the high

frequency components that exceed 20 MHz or 100 MHz are attenuated.

Note: for DS2102 and DS2072, the bandwidth limit can only be set to 20 MHz.

Press CH1  BW Limit and use to enable or disable bandwidth limit (the default is OFF). When bandwidth limit (20 MHz or 100 MHz) is enabled, the character “B” will be displayed in the channel label at the bottom of the screen. You can also press BW Limit continuously to switch between on and off of the bandwidth limit.

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RIGOL 2 To Set the Vertical System

Probe Ratio

You can set the probe attenuation ratio manually. The probe ratio values available are as shown in the table below.

Table 2-1 Probe Attenuation Coefficient

Menu Attenuation coefficient

0.01X

0.02X

0.05X

0.1X

0.2X

0.5X 1X 2X 5X

10X 20X

50X 100X 200X 500X

1000X

1:100

1:50 1:20 1:10

1:5 1:2 1:1 2:1

5:1 10:1 20:1 50:1

100:1 200:1 500:1

1000:1

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2 To Set the Vertical System RIGOL

Waveform Invert

When waveform invert is enabled, the waveform display rotates 180 degree relative to the ground potential. When waveform invert is disabled, the waveform display is normal. Press CH1  Invert to enable or disable waveform invert.

Vertical Scale

The vertical scale can be adjusted in “Coarse” or “Fine” mode.

Press CH1  Volts/Div to select the desired mode. Rotate VERTICAL SCALE to adjust the vertical scale (clockwise to reduce the scale and counterclockwise to increase).

The scale information (such as bottom of the screen will change accordingly during the adjustment. The adjustable

range of the vertical scale is related to the probe ratio currently set. By default, the probe ratio is 1X and the adjustable range of the vertical scale is from 500 μV/div to 10 V/div.

 Coarse adjustment (take counterclockwise as an example): set the vertical scale

in 1-2-5 step namely 500 μV/div, 1 mV/div, 2 mV/div, 5 mV/div, 10 mV/div…10 V/div.

 Fine adjustment: further adjust the vertical scale within a relatively smaller

range to improve vertical resolution. If the am plitude of t he input waveform is a little bit greater than the full scale under the current scale and the amplitude would be a little bit lower i f the next scale is used, fine adjustment can be used

to improve the amplitude of waveform display to view signal details. Note: you can also press VERTICAL and “Fine” adjustments.

SCALE to quickly switch between “Coarse”

) in the channel label at the

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RIGOL 2 To Set the Vertical System

Vertical Expansion

When using VERTICAL channel, you can choose to expand or compress the signal vertically around the center of the screen or the ground point of the signal.

Press Utility  System  VerticalExp to select “Center” or “Ground” and the default is “Ground”.  Center: when the vertical scale is modified, the waveform will expand or

compress around the center of the screen.

 Ground: when the vertical scale is modified, the waveform ground level will

remain at the same point on the screen and the waveform will expand or compress around this point.

SCALE to change the vertical scale of the analog

Amplitude Unit

Select the amplitude display unit for t he current channel. The av ailable units are W, A, V and U. When the unit is changed, the unit displayed in the channel label will change accordingly.

Press CH1  Unit to select the desired unit and the default is V.

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2 To Set the Vertical System RIGOL

Channel Label

You can modify the labels used to mark the analog channels (CH1 and CH2) at the left side of the screen. The label is the number of the channel (such as default and the length of the label can not exceed 4 characters. Note: only English input method can be used for this operation.

Press CH1 Label to enter the label modification interface as shown in the f igure below.

Name Input Area Keyboard Upper/Lower Case Switch

) by

For example, change “

” to “ ”.

Press Keyboard to select the “Keyboard” area. Select “Aa” using and press down

to switch it to “aA”. Select “C” using and press down to input the

character. Use the same method to input “hn1”.

T o modify or delete the input character, press Name to select the “Name Input Area” and use

to select the character to be modified or deleted. Enter the desired

character or press Delete to delete the character selected.

After finishing the input, press OK to finish the modification and the channel label will change to “

”.

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RIGOL 2 To Set the Vertical System

Delay Calibration

When using an oscilloscope for actual measurement, the transmission delay of the probe cable may bring relatively greater error (zero offset). DS2000 allows users to set a delay time to calibrate the zero offset of the corresponding channel. Zero offset is defined as the offset of the crossing point of the waveform and trigger level line relative to the trigger position, as shown below.

Press CH1 Delay-Cal and use to set the desired delay time. The range available is from -100 ns to 100 ns. Note: this parameter is related to the instrument model and the horizontal time base currently set. For example, for 200 MHz models, when the horizontal time base is 5 ns, the step of delay time can be set to 0.1 ns; when the horizontal time base is 10 ns, the step of delay time can be set to 0.2 ns; when the horizontal time base is 5 μs, the step of delay time can be set to 100 ns; when the horizontal time base is greater than or equal to 10 μs, the delay calibration is 0 and can not be adjusted.

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3 To Set the Horizontal System RIGOL

3-1

3 To Set the Horizontal System

The contents of this chapter:

 Delayed Sweep  Time Base Mode  Horizontal Scale  Horizontal Reference

DS2000 User’s Guide

RIGOL 3 To Set the Horizontal System

Delayed Sweep

Delayed sweep can be used to enlar ge a length of w av eform horiz ontally to vie w the waveform details.

Press MENU in the horizontal control area (HORIZONTAL) at the front panel and press Delayed to enable or disable delayed sweep. Note that to enable delayed sweep, the current time base mode must be “Y-T” and the “Pass/Fail test” must be disabled.

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3 To Set the Horizontal System RIGOL

Tip

In delayed sweep mode, the screen is divided into two display areas as shown in the figure below.

The waveform before

Main time

base

The waveform before

enlargement

Delayed Sweep Time Base

The waveform after enlargement

The waveform before enlargement:

The waveform in the area that has not been covered by the subtransparent blue in the upper part of the screen is the waveform before enlargement. You can turn

HORIZONTAL HORIZONTAL

POSITION SCALE to enlarge or reduce this area.

to move the area left and right or turn

The waveform after enlargement:

The waveform in the lower part of the screen is the horizontally expanded waveform. Note: compared to the main time base, the delayed time base has increased the waveform resolution (as shown in the figure above). The delayed time base should be less than or equal to the main time base.

You can also press down HORIZONTAL

SCALE (delayed sweep shortcut key)

to directly switch to delayed sweep mode.

DS2000 User’s Guide

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RIGOL 3 To Set the Horizontal System

Time Base Mode

Press MENU in the horizontal control area (HORIZONTAL) at the front panel and then press Time Base to select the time base mode of the oscilloscope and the default is Y-T.

Y-T Mode

This mode is the main time base mode and is applicable to both of the input channels. In this mode, the Y axis represents voltage and the X axis represents time. Note that only when this mode is enabled can “Delayed Sweep” be turned on.

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3 To Set the Horizontal System RIGOL

The signal must be centered horizontally

X-Y Mode

In this mode, the oscilloscope changes the two channels from voltage-time display mode to voltage-voltage display mode. Wherein, the X axis and Y axis tracks the voltages of CH2 and CH1 respectively. The phase deviation between two signals with the same frequency can be easily measured via Lissajous method. The figure below shows the measurement schematic diagram of the phase deviation.

II I

III IV

According to sin the two channels and the definitions of A, B, C and D are as shown in the figure above), the phase deviation angle is obtained, that is:

If the principal axis of the ellipse is within quadrant I and III, the phase deviation angle obtained should be withi n quadrant I and IV, namely within (0 to π/2) or (3π/2 to 2π). If the principal axis of the ellipse is within quadrant II and IV, the phase deviation angle obtained should be within quadr ant II and III , namely within (π/2 to π) or (π to 3π/2).

X-Y function can be used to measure the phase deviation occurred when the signal under test passes through a circui t network. Connect the oscilloscope to the circuit to

DS2000 User’s Guide

θ=A/B or C/D (wherein, θ is the phase deviation angle between

θ=±arcsin (A/B) or ±arcsin (C/D)

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RIGOL 3 To Set the Horizontal System

monitor the input and output signals of the circuit.

Application example: measure the phase deviation of the input signals of two channels.

Method 1: Use Lissajous method

1. Connect a sine signal to CH1 and then connect a sine signal with the sam e

frequency and amplitude but a 90° phase deviation to CH2.

2. Press AUTO and enable X-Y mode. Rotate Horizontal

SCALE to ajdut the

sample rate properly to get better Lissajous figure for better observation and measurement.

3. Roate VERTICAL POSITION of CH1 and CH2 to display the signals at the center of the screen and roate VERTICAL

SCALE of CH1 and CH2 to make the signals easy to observe. At this point, the circle as shown in the figure below should be displayed.

4. As shown in the figure above, the distances from the cro ssing p oints of axis and the circle to the origin of the coordinates are approximately equal. Thus, the phase deviation angle

θ=±arcsin1=90°.

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3 To Set the Horizontal System RIGOL

Note:  In Y -T mode, the oscilloscope could use any sample rate (within the guaranteed

range) to capture waveform. The maximum sample rate of X-Y mode is 1.0 GSa/s. Generally, reducing the sample rate properly could improve the display effect of Lissajous figure.

 When X-Y mode is enabled, “Delayed Sweep” will be disabled automatically.  The following functions are not available in X-Y mode:

Auto measure, cursor measure, math operation, reference waveform, delayed sweep, vector display, HORIZONTAL

POSITION, trigger control, memory

depth, acquisition mode, Pass/Fail test and waveform record.

Method 2: Use the shortcut measurement function

Please refer to “Phase A→B ” and “Phase A→B ” measurement functions of “Delay and Phase” on page 6-17.

DS2000 User’s Guide

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RIGOL 3 To Set the Horizontal System

Roll Mode

In this mode, the waveform scrolls f rom the right to the left to update the displa y and the waveform horizontal position and trigger control are not available. The range of horizontal scale adjustment is from 200.0 ms to 1.000 ks.

Note: when Roll mode is enabled, “Delayed Sweep”, “Protocol Decoding”, “Pass/Fail Test”, “Measurement Range”, “Waveform Record”, “To Set the

Persistence Time” and “To Trigger the Oscilloscope” are not available.

Slow Sweep

Another mode similar to Roll mode. When the horizontal time base is set to 200 ms/div or slower, the instrument enters “slow sweep” mode in which the instrument first acquires the data at the left of the trigger point and then waits for trigger event. After the trigger occurs, the instrument continues to finish the waveform at the right of the trigger point. When slow sweep mode is used to observe low frequency signal, it is recommended that the Channel Coupling is set to “DC”.

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3 To Set the Horizontal System RIGOL

Horizontal Scale

Being similar to “Vertical Scale “Fine” mode.

Press MENU  ScaleAdjust in the horizontal control area (HORIZONTAL) at the front panel to select the desired mode. Turn HORIZONTAL SCALE to adjust the horizontal scale. Turn clockwise to reduce the horizontal scale and turn counterclockwise to increase.

”, the horizontal scale can be adjusted in “Coarse” or

The scale information (such as

) at the upper left corner of the screen

will change accordingly during the adjustment. The range of horizontal scale adjustment is from 2.000 ns to 1.000 ks.

 Coarse (take counterclockwise as an example): set the horizontal scale in 1-2-5

step namely 2 ns, 5 ns, 10 ns…1.000 ks.

 Fine: further adjust within smaller range.

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RIGOL 3 To Set the Horizontal System

Horizontal Reference

Horizontal reference is the reference position according to which the screen waveform expands or compresses horizontally when adjusting HORIZONTAL

SCALE. In Y -T mode (this function is not available in X-Y mode and Roll mode), press MENU  HorRef in the horizontal control area (H ORIZONT AL) at t he front pane l to

select the desired reference mode and the default is “Center”.

1. Center

When changing the horizontal time base, the wa veform expands or compresses horizontally around the center of the screen.

2. Trig Pos

When changing the horizontal time bas e, the w av eform expands or compresses horizontally around the trigger point.

3. User

When changing the horizontal time base, the wa veform expands or compresses horizontally around the user-defined reference position. In the horizontal direction, the screen can display a maximum of 700 points with the leftmost as 350 and the rightmost as -350. For example, set the reference position to 150.

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3 To Set the Horizontal System RIGOL

DS2000 User’s Guide

3-11

4 To Set the Sample System RIGOL

4-1

4 To Set the Sample System

The contents of this chapter:

 Acquisition Mode  Sample Mode  Sample Rate  Memory Depth  Antialiasing

DS2000 User’s Guide

RIGOL 4 To Set the Sample System

Acquisition Mode

The acquisition mode is used to control how to generate waveform points from sample points.

Press Acquire  Acquisition in the function menu at the front panel and use to select the desired acquisition mode (the default is normal), then press down the knob to select this mode. You can also press Acquisition continuously to switch the acquisition mode.

Acquire

Normal

In this mode, the oscilloscope samples the signal at equal time interval to rebuild the waveform. For most of the w av ef orms, the bes t display ef f ect can be obtained using this mode.

Average

In this mode, the oscilloscope averages the waveforms from multiple samples to reduce the random noise of the input signal and impr ove the ver tical resolution. The greater the number of averages is, the lower the noise will be and the higher the vertical resolution will be but the slower the response of the displayed waveform to the waveform changes will be.

The available r ange of the number of a ver ages is fro m 2 to 8192 and the def ault is 2. When “Average” mode is selected, press Averages and use to set the desired

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4 To Set the Sample System RIGOL

number of averages as the power function of 2.

The Waveform before Average:

The Waveform after 256 Averages:

DS2000 User’s Guide

4-3

RIGOL 4 To Set the Sample System

Peak Detect

In this mode, the oscilloscope acquires the maximum and minimum values of the signal within the sample interval to get the envelope of the signal or the narrow pulse of the signal that might be lost. I n thi s m ode, signa l co nf usi on c an be pr ev ente d bu t the noise displayed would be larger.

In this mode, the oscilloscope can display all the pulses with pulse widths at least as wide as the sample period.

High Resolution

This mode uses a kind of ultra-sample technique to average the neighboring points of the sample wavef orm to reduce the r andom noise on the input signal and generate much smoother waveforms on the screen. This is generally used when the sample rate of the digital converter is higher than the storage r ate of the acquisition memory .

Note: “Average” and “High Res” modes use different averaging methods. The f ormer uses “Waveform Average” and the latter uses “Dot Average”.

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4 To Set the Sample System RIGOL

Tip

Sample Mode

This oscilloscope only supports real-time sample. In this mode, the oscilloscope samples and displays waveform within a trigger event. The maximum real-time sample rate of DS2000 is 2 GSa/s and the current sample rate is displayed under the Sa Rate menu.

Press RUN/STOP to stop the sample, the oscilloscope will hold the last display. A t this point, you can still use the vertical control and horizontal control to pan and zoom the waveform.

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RIGOL 4 To Set the Sample System

Sample Rate

The sample rate of this oscilloscope is up to 2 GSa/s. Note that the sample rate is displayed in the sta tus ba r at the up per side of the screen and in the Sa Rate menu and can be changed by adjusting the horizontal time base (s/div) through HORIZONTAL

The influence on the waveform when the sample rate is too low:

1. Waveform Distortion: when the sample rate is too low, some waveform details are lost and the waveform displayed is rather different from the actual signal.

SCALE or modifying the memory depth.

2. Waveform Confusion: when the sample rate is lower than twice the actual

signal frequency (Nyquist Frequency), the frequency of the waveform rebuilt from the sample data is lower than the actual signal frequency. The most common aliasing is the jitter on fast edge.

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4 To Set the Sample System RIGOL

3. Waveform Leakage: when the sample rate is too low, the waveform rebuilt from the sample data does not reflect all the actual signal information.

Pulse disappeared

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RIGOL 4 To Set the Sample System

Trigger Point

Pre-sample Delayed Sample

Memory Depth

Memory depth refers to the number of waveform points that the oscilloscope can store in a single trigger sample and it reflects the storage ability of the sample memory. DS2000 provides up to 56 Mpts memory depth (option) and 14 Mpts standard memory depth.

The relation of memory depth, sample rate and w aveform leng th fulfills the equation below:

Memory depth = sample rate (Sa/s) × waveform length (s/div × div)

Press Acquire  Mem Depth, use to switch to the desired memory depth (the default is auto) and then press down the knob to select the option. You can also press Mem Depth continuously to switch the memory depth.

When a single channel is enabled, the memory depths available include Auto, 14kPoints, 140kPoints, 1.4MPoints, 14MPoints and 56MPoints. In “Auto” mode, the oscilloscope selects the memory depth automatically according to the current sample rate.

When CH1 a nd CH2 are enabled, the memory depths available include Auto, 7kPoints, 70kPoints, 700kPoints, 7MPoints and 28MPoints. In “Auto” mode, the oscilloscope selects the memory depth automatically according to the current sample rate.

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4 To Set the Sample System RIGOL

Antialiasing

At slower sweep speed, the sample rate is reduced and a dedicated display algorithm is used to minimize the possibility of aliasing.

Press Acquire  Anti_Aliasing to enable or disable the antialiasing function. By default, antiali asing is disabled. The displayed wa veforms will be mor e susceptible to aliasing when this function is disabled.

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5 To Trigger the Oscilloscope RIGOL

5-1

5 To Trigger the Oscilloscope

For trigger, you set certain trigger condition according to the requirement and when a waveform in the waveform stream meets this condition, the oscilloscope captures this waveform as well as the neighbouring part and displays them on the screen. For digital oscilloscope, it displays waveform continuously no matter whether it is stably triggered, but only stable trigger can ensures stable display. The trigger circuit ensures that every time base sweep or acquisition starts from the input signal and the user-defined trigger condition, namely every sweep is synchronous to the acquisition and the waveforms acquired overlap to display stable waveform.

Trigger setting should be based o n the features of the input signal, thus you need to have some knowledge of the signal under test to quickly capture the desired waveform. This osci lloscope provides abund ant advanced trigg er functions which can help you to focus on the desired waveform details.

The contents of this chapter:

 Trigger Source  Trigger Mode  Trigger Coupling  Trigger Holdoff  Noise Rejection  Trigger Type  Trigger Output Connector

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RIGOL 5 To Trigger the Oscilloscope

Trigger Source

Press MENU  Source in the trigger control area (TRIGGER) at the front panel to select the desired trigger source. Siganls input from CH1/CH2 and the [EXT TRIG] connector as well as the AC Line can all be used as trigger source.

Analog channel input:

Signals input from analog channels CH1 and CH2 can all be used as the trigger source. No matter whether the inpu t of the channel selected is enabled, the channel can work normally.

External trigger input:

External trigger source can be used to connect external trigger signal to the EXT TRIG channel when both of the two channels are sampling data. The trigger signal (such as external clock and signal of the circuit to be tested) will be connected to EXT trigger source via the [EXT TRIG] connector. You can set the trigge r c ondi tion within the range of trigger level (-4 V to +4 V).

AC line:

The trigger signal is obtained from the AC power input of the oscilloscope. This kind of signals can be used to display the r elationship between signal ( such as illuminating device) and power (power supply device). For example, to stably trigger the waveform output from the transformer of a transformer substation, which is mainly used in related measurement of the power industry.

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Trigger Mode

Trigger mode affects the way in which the oscilloscope searches for the trigger. The following is the schematic diagram of the acquisition memory. As shown in the figure below, the position of the trigger event is determined by the ref erence time point and the delay setting. Note that the acquisition memory of the oscilloscope is a cyclic buffer and the new data would overwrite the old data until the acquisition finishes.

Pre-trigger Buffer Post-trigger Buffer

Acquisition memory

Pre-trigger/Delayed trigger:

Acquire data before/after the trigger event. The trigger position is usually at the horizontal center of the screen. In full-screen display, seven-grid pre-trigger and delayed trigger information are displayed respectively. You can adjust the horizontal position of the waveform through HORIZONTAL pre-trigger information and delayed trigger information, through which the signal information before/after the trigger (such as capture the glitch generated by the circuit and analyze the pre-trigger data to find out the reasons for glitch) can be obtained.

Press MODE in the trigger control area (TRIGGER) at the front panel or press MENU  Sweep to select the desired trigger mode. The corresponding status l ight of the mode currently selected turns on.

Trigger Event

POSITION

to view more

MODE

Auto Nomal

DS2000 User’s Guide

Single

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RIGOL 5 To Trigger the Oscilloscope

Auto:

No matter whether the trigger condition is met, there is always waveform display. A horizontal line is displayed when no signal is input. In this mode, the oscilloscope operates by first filling the pre-trigger buffer. It starts searching for a trigger after the pre-trig ger buff er is filled and continues to flow data through this buffer while it searches for the trigger. While searching for the trigger, the oscilloscope overflows the pre-trigger buffer and the first data put into the buffer is first pushed out (First Input First Out, FIFO). When a trigger is found, the pre-trigger buffer would contain the data acquired just before the trigger. If no trigger is found, the oscilloscope will trigger forcefully . If for ceful trigger is invalid, the oscilloscope still displays waveform but the wavef orm is not stable; if forceful trigger is valid, the oscilloscope displays stable waveform. This trigger mode is applicable to low-repetitive-rate signals and unknown signal levels. To display DC signals, you must use auto trigger mode. Note: when the horizontal time base is set to 50 ms/div or greater, this trigger mode allows the absence of trigger signal.

Normal:

Display waveform when the trigger condition is met; otherwise, the oscilloscope holds the original waveform and waits for the next trigger. In this mode, the oscilloscope fills the pre-trigger buffer first and then search for a trigger while at the same time continues filling data. While searching for the trigger, the oscilloscope overflows the pre-trigger buffer and the first data put into the buffer is first pushed out (FIFO). When a trigger is found, the oscilloscope will fill the post-trigger buffer and display the acquisition memory. Use normal trigger mode for low-repetitive-rate signals or when auto trigger is not required. Note: in this mode, pressing FORCE can generate a trigger signal forcefully.

Single:

When this mode is selected, the backlight of SINGLE turns on. The oscilloscope waits for a trigger and displays the waveform when the trigger condition is met and then stops. Note: in this mode, pressing FORCE can generate a trigger signal forcefully.

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Trigger Coupling

Trigger coupling decides which kind of components will be transmitted to the trigger circuit. Please distinguish it with “Channel Coupling”.

 DC: allow DC and AC components into the trigger path.  AC: block all the DC components and attenuate signals lower than 8 Hz.  LF Reject: block the DC components and reject the low frequency components

(lower than 75 kHz).

 HF Reject: reject the high frequency components (higher than 75 kHz).

Press MENU  Setting  Coupling in the trigger control area (TRIGGER) at the front panel to select the desired coupling type (the default is DC). Note that trigger coupling is only valid in edge trigger.

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RIGOL 5 To Trigger the Oscilloscope

Holdoff Time

Trigger Holdoff

Trigger holdoff can be used to stably trigger the complex waveforms (such as pulse series). Holdoff time is the amount of time that the oscilloscope waits before re-arming the trigger circuitry. The oscilloscope will not trigger until the holdoff time expires.

Trigger Position

Press MENU  Setting  Holdoff in the trigger control area (TRIGGER) at the front panel and use to modify the holdoff time (the default is 100 ns) until the waveform triggers stably. The adjustable range of holdoff time is from 100 ns to 10 s. Note that trigger holdoff is not available for Nth edge trigger, video trigger, RS232 trigger, I2C trigger, SPI trigger and USB trigger.

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Noise Rejection

Noise Rejection adds additional hysteresis to the trigger circuitry. Noise rejection reduces the possibility of noise trigger but also reduces the trigger sensitivity; therefore, a larger signal is required to trigger the oscilloscope.

Press MENU  Setting  Noise Reject in the trigger control area (TRIGGER) at the front panel to enable or disable noise rejection.

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RIGOL 5 To Trigger the Oscilloscope

Trigger Type

DS2000 provides various trigger functions, including various serial bus triggers.

 Edge Trigger  Pulse Trigger  Runt Trigger  Windows Trigger  Nth Edge Trigger  Slope Trigger  Video Trigger  Pattern Trigger  Delay Trigger  TimeOut Trigger  Duration Trigger  Setup/Hold Trigger  RS232 Trigger  I2C Trigger  SPI Trigger  USB Trigger

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Edge Trigger

Trigger on the trigger threshold of the specified edge of the input signal.

Trigger Type:

Press Type to select “Edge”. At this point, the trigger setting information as shown in the figure below is displayed at the upper right corner of the screen.

Source Selection:

Press Source to select CH1, CH2, EXT or AC Line as the Trigger Source. The current trigger source is displayed at the upper right corner of the screen. Note: select channel with signal input as trigger source to obtain st able trigger.

Edge Type:

Press Slope to select the kind of edge of the input signal on which the oscilloscope triggers. The current edge type is displayed at the upper right corner of the screen.

 : trigger on the rising edge of the input signal when the voltage level meets

the preset trigger level.



Trigger Mode:

Press Sweep to select the Trigger Mode (page 5-3) under this trigger type a s auto, normal or single. The corresponding status light of the current trigger mode turns on.

Trigger Setting:

Press Setting to set the trigger parameters (trigger coupling, trigger holdo ff and noise rejection) under this trigger type.

Trigger Level:

Trigger occurs only when the signal reaches the preset trigger level. Use TRIGGER

trigger mark “

: trigger on the falling edge of the input signal when the voltage level meets

the preset trigger level.

: trigger on the rising and falling edges of the input signal when the

voltage level meets the preset trigger level.

LEVEL to modify the level. An orange trigger level line and the

” appear on the screen and move up and down with the rotation of

the knob, while at the same time, the trigger level v alue (such as at the lower left corner of the screen also changes accordingly. When stopping

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)

RIGOL 5 To Trigger the Oscilloscope

turning the knob, the trigger level line and the trigger mark disappear in about 2 s.

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5 To Trigger the Oscilloscope RIGOL

Pulse Trigger

Trigger on the positive or negative pulse with a specified width.

Trigger Type:

Press Type to select “Pulse”. At this point, the trigger setting information as shown in the figure below is displayed at the upper right corner of the screen.

Source Selection:

Press Source to select CH1 or CH2 as the Trigger Source. The current trigger source is displayed at the upper right corner of the screen. Note: select channel with signal input as trigger source to obtain stable trigger.

Pulse Condition: Press When to select the desired pulse condition.

 : trigger when the positive pulse width of the input signal is greater than

the specified pulse width.



Pulse Width Setting:

In this oscilloscope, positive pulse width is defined as the time difference between the two crossing points of t he tr ig ger level and positive pulse as shown in the figure below.

: trigger when the positive p ulse width of the in put signal is lowe r than the

specified pulse width.

: trigger when the positive pulse width of the input signal is greater than the specified lower limit of pulse width and lower than the upper limit of pulse width.

: trigger when the negative pulse width of the inpu t signal is greater than the specified pulse width.

: trigger when the negative pulse width of the input signal is lower than

the specified pulse width.

: trigger when the negative pulse width of the inpu t signal is greater than the specified lower limit of pulse width and lower than the upper limit of pulse width.

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RIGOL 5 To Trigger the Oscilloscope

Positive

pulse width

Trigger level

 When the Pulse Condition is set to

, , or , press Setting and use to input the desired value. The r ange available is fr om 2 ns to 4 s.

 When the Pulse Condition is set to or , press Upper Limit and

Lower Limit and use to input the desired values respectively . The range of

the upper limit is from 10 ns to 4 s. The range of the lower limit is from 2 ns to

3.99 s. Note that the lower limit of the pulse width must be lower than the upper limit.

Trigger Mode:

Press Sweep to select the Trigger Mode (page 5-3) under this trigger type a s auto, normal or single. The corresponding status light of the current trigger mode turns on.

Trigger Setting:

Press Setting to set the trigger parameters (trigger holdoff and noise rejection) under this trigger type.

Trigger Level:

Use TRIGGER LEVEL to modify the level. For details, please refer to the description of “

Trigger Level” on page 5-9.

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Runt Trigger

This trigger mode is used to trigger pulses that pass through one trigger level but fails to pass through the other trigger level as shown in the figure below.

Trigger Type:

Press Type to select “Runt”. At this point, the trigger setting information as shown in the figure below is displayed at the upper right corner of the screen.

Source Selection:

Press Source to select CH1 or CH2 as the Trigger Source. The current trigger source is displayed at the upper right corner of the screen.

Pulse Polarity: Press Polarity to select the pulse polarity of runt trigger.

 : positive polarity. The instrument triggers on the positive runt pulse. 

: negative polarity. The instrument triggers on the negative runt pulse.

Qualifier: Press Qualifier to set the trigger conditions of runt trigger.

 None: do not set the trigger condition of runt trigger.  >: trigger when the runt pulse width is greater than the lower limit of pulse

width. Press Lower Limit to set the minimum pulse width of runt trigger. The range available is from 2 ns to 4 s.

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RIGOL 5 To Trigger the Oscilloscope

 <: tr igger when the runt pulse width is lower than the upper limit of pulse width.

Press Upper Limit to set the maximum pulse width of runt trigger. The range available is from 2 ns to 4 s.

 <>: trigger when the runt pulse width is greater than the lowe r limit and lo wer

than the upper limit of pulse width. Press Upper Limit to set the maximum pulse width of runt trigger and the range is from 10 ns to 4 s; press Lower Limit to set the minimum pulse width of runt trigger and the range is f rom 2 ns to 3.99 s. Note: the lower limit of the pulse width must be lower than the upper limit.

Vertical Window:

Press Vertical to select the desired vertical window type. Note that under the “Runt trigger” menu, you can press the trigger level knob continuously to switch among different vertical window types. You can select the boundary of the trigger level to be set and then use Trigger LEVEL to adjust the trigger level. During the adjustment, two orange trigger level lines and trigger marks (

and ) appear on the screen and move up and down with the rotation of the knob. At the same time, the current trigger level values are displayed at the lower left corner of the screen. The trigger level lines and trigger marks disappear after you stop rotating the knob for 2 s.

The adjustment mode of the trigger level differs when different vertical window is selected.



: only adjust the upper limit of the trigger level. During the adjustment,

the “Up Level” changes accordingly and “Low Level” remains unchanged.



: only adjust the lower limit of the trigger level. During the adjustment,

the “Low Level” changes accordingly and the “Up Level” remains unchanged.



: adjust the upper and lower limits of the trigger level at the same time.

During the adjustment, the “Up Level” and “Low Level” change accordingly.

Trigger Mode:

Press Sweep to select the Trigger Mode (page 5-3) under this trigger type as auto, normal or single. The corresponding status light of the current trigger mode turns on.

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Trigger Setting:

Press Setting to set the trigger parameters (trigger holdoff and noise rejection) under this trigger type.

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RIGOL 5 To Trigger the Oscilloscope

Windows Trigger

Windows trigger provides a high trigger level and a low trigger level. The ins trument triggers when the input signal passes through the high trigger lev el or the low trigger level.

Trigger Type:

Press Type to select “Windows”. At this point, the trigger setting information as shown in the figure below is displayed at the upper right corner of the screen.

Source Selection:

Windows Type:

Press WndType to select the kind of edge of the input signal on which the oscilloscope triggers.

 : trigger on the rising edge of the input signal when the voltage level is

greater than the preset high trigger level.



: trigger on the falling edge of the input signal when the voltage level is

lower than the preset low trigger level.



: trigger on any edge of the input signal when the voltage level meets the

preset trigger level.

Trigger Position:

After selecting the windows type, press Position to further specify the time point of trigger by selecting the trigger position.

 Enter: trigger when the trigger signal enters the specified trigger level range.  Exit: trigger when the input signal exits the specified trigger level range.  Time: used to specify the hold time of the input signal after entering the

specified t rigger level range. The instrument triggers when the accumulated hold time equals the windows time.

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Vertical Window:

Press Vertical to select the desired vertical window type. For detailed operation, referto “

Vertical Window” on page 5-14.

Trigger Mode:

Press Sweep to select the Trigger Mode (page 5-3) under this trigger type a s auto, normal or single. The corresponding status light of the current trigger mode turns on.

Trigger Setting:

Press Setting to set the trigger parameters (trigger holdoff and noise rejection) under this trigger type.

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RIGOL 5 To Trigger the Oscilloscope

P3M

P1/P2/P3<Idle Time<M

Edge Type=

Edge Num=2

Nth Edge Trigger

Trigger on the nth edge that appears after the specified idle time, as shown in the figure below.

Trigger Type:

Press Type to select “Nth Edge”. At this point, the trigger setting information as shown in the figure below is displayed at the upper right corner of the scr e en.

Source Selection:

Edge Type:

Press Slope to select the kind of edge of the input signal on which the oscilloscope triggers.

 : trigger on the rising ed g e of the inp ut sig nal w hen t he v oltag e l evel meets

the specified trigger level.



: trigger on the falling edge of the input signal when the voltage level meets

the specified trigger level.

Idle Time:

Press Idle to set the idle time before the edge counting in Nth egde trigger. The range available is from 16 ns to 4 s.

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Edge Number:

Press Edge to set the value of “N” in Nth edge trig ger and the ran ge availabl e is from 1 to 65535.

Trigger Mode:

Press Sweep to select the Trigger Mode (page 5-3) under this trigger type a s auto, normal or single. The corresponding status light of the current trigger mode turns on.

Trigger Setting: Press Setting to set the trigger parameter (noise rejection) under this trigger type.

Trigger Level:

Use TRIGGER LEVEL to modify the level. For details, please refer to the description of “

Trigger Level” on page 5-9.

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Slope Trigger

Trigger on the positive or negative slope of specified time.

Trigger Type:

Press Type to select “Slope”. At this point, the trigger setting information as shown in the figure below is displayed at the upper right corner of the screen.

Source Selection:

Press Source to select CH1 or CH2 as the Trigger Source. The current trigger source is displayed at the upper right corner of the screen.

Note: select channel with signal input as trigger source to obtain stable trigger.

Slope Condition: Press When to select the desired slope condition.

 : trigger when the positive slope time of the input signal is greater than

the specified time.



specified time.



the specified lower limit of time and lower than the specified upper limit of time.



the specified time.



the specified time.



the specified lower limit of time and lower than the specified upper limit of time.

Time Setting:

In this oscilloscope, positive slope time is defined as the time difference between the two crossing points of trigger level line A and B with the positive edge as shown in the figure below.

: trigger when the positive slope time of the input signal is lower than the

: trigger when the positive slope time of the input signal is greater than

: trigger when the negative slope time of the inpu t signal is gr eater than

: trigger when the negative slope time of the input signal is lower than

: trigger when the negative slope time of the inpu t signal is gr eater than

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gValueTimeSettin

LowLevelUpLevel

SlewRate

−

imitTimeLowerL

LowLevelUpLevel

imitTimeUpperL

LowLevelUpLevel

SlewRate

−−

The upper limit of trigger level (Up Level)

The lower limit of trigger level (Low Level)

Positive

Slope time

 When the Slope Condition is set to

, , or , press Time and use to input the desired value. The range available is from 10 ns to 1 s.

 When the Slope Condition is set to or , press Upper Limit

and Lower Limit and use to input the desired values respectively. The range of time upper limit is from 20 ns to 1 s. The range of the time lower limit is from 10 ns to 999 ms. Note that the time lower limit must be lower than the upper limit.

Vertical Window:

Press Vertical to select the desired vertical window. Note that under the “Slope” trigger menu, you can also press down the trigger level knob continuously to switch the vertical window. You can select the boundaries of the trigger level and then use TRIGGER

LEVEL to adjust the trigger level. During the adjustment, two or an ge tr igger level lines and two trigger marks (

and ) appear on the screen and move up and down with the rotation of the knob, while at the same time, the trigger level value and the slope value are displayed at the lower left corner of the scr een. When stoppin g turning the knob, the trigger level lines and trigger marks disappear in about 2 s. When the

Slope Condition is set to

or , the current trigger level and slope

range will be displayed at the lower left corner of the screen.

The adjustment mode of the trigger level is different when different vertical window

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RIGOL 5 To Trigger the Oscilloscope

is selected.  : only adjust the upper limit of the trigger level. Dur ing the adjustment,

“UP Level” and “Slew Rate” change accordingly but “Low Level” remains unchanged.



: only adjust the lower limit of the trigger level. During the adjustment, “Low Level” and “Slew Rate” change accordingly but “UP Level” remains unchanged.



: adjust the upper and lower limits of the trigger level at the same time. During the adjustment, “UP Level” and “Low Level” change accordingly but

“Slew Rate” remains unchanged.

Trigger Mode:

Press Sweep to select the Trigger Mode (page 5-3) under this trigger type a s auto, normal or single. The corresponding status light of the current trigger mode turns on.

Trigger Setting:

Press Setting to set the trigger parameters (trigger holdoff and noise rejection) under this trigger type.

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Rigol DS2000 Series Digital Oscilloscope User’s Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Guaranty and Declaration

Safety Requirement

General Safety Summary

Safety Terms and Symbols

Measurement Category

Ventilation Requirement

Working Environment

General Care and Cleaning

Environmental Considerations

DS2000 Series Overview

Document Overview

1 Quick Start

General Inspection

Appearance and Dimensions

To Prepare the Oscilloscope for Use

To Adjust the Supporting Legs

To Connect to Power Supply

Power-on Inspection

To Connect the Probe

Function Inspection

Probe Compensation

Front Panel Overview

Rear Panel Overview

Front Panel Function Overview

VERTICAL

HORIZONTAL

TRIGGER

CLEAR

RUN/STOP

SINGLE

AUTO

Knob

Navigation Knob

MENU

Record

Print

2 To Set the Vertical System

To Enable the Channel

Channel Coupling

Bandwidth Limit

Probe Ratio

Waveform Invert

Vertical Scale

Vertical Expansion

Amplitude Unit

Channel Label

Delay Calibration

3 To Set the Horizontal System

Delayed Sweep

Time Base Mode

Y-T Mode

X-Y Mode

Roll Mode

Horizontal Scale

Horizontal Reference

4 To Set the Sample System

Acquisition Mode

Normal

Average

Peak Detect

High Resolution

Sample Mode

Sample Rate

Memory Depth

Antialiasing

5 To Trigger the Oscilloscope

Trigger Source

Trigger Mode

Trigger Coupling

Trigger Holdoff

Noise Rejection

Trigger Type

Edge Trigger

Pulse Trigger

Runt Trigger

Windows Trigger