YOKOGAWA DL9000, DL9040L, DL9140, DL9140L, DL9240 User Manual

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Page 1

DL9040/DL9140/DL9240 Series

Digital Oscilloscope

IM 701310-01E

8th Edition

Page 2

Product Registration

Thank you for purchasing YOKOGAWA products.

YOKOGAWA provides registered users with a variety of information and services. Please allow us to serve you best by completing the product registration form accessible from our homepage.

http://tmi.yokogawa.com/

PIM 103-03E

Page 3

Thank you for purchasing the DL9040/DL9140/DL9240 Series Digital Oscilloscope (DL9040/DL9040L/DL9140/DL9140L/DL9240/DL9240L, hereafter referred to as the DL9000). This user’s manual contains useful information about the functions, operating procedures, and handling precautions of the DL9000. To ensure correct use, please read this manual thoroughly before beginning operation. After reading the manual, keep it in a convenient location for quick reference whenever a question arises during operation. The following two manuals, including this one, are provided as manuals for the DL9000. Read them along with this manual.

Manual Title Manual No. Description

DL9040/DL9140/DL9240 Series Digital Oscilloscope User’s Manual

DL9040/DL9140/DL9240 Series Digital Oscilloscope Communication Interface User’s Manual (in CD) DL9000 Series Digital Oscilloscope Serial Bus Signal Analysis Function User’s Manual DL9000 Series Digital Oscilloscope/ SB5000 Series Vehicle Serial Bus Analyzer Power Supply Analysis Function User’s Manual

IM 701310-01E This manual. Explains all functions

and procedures of the DL9040/ DL9140/DL9240 Series excluding the communication functions.

IM 701310-17E Explains the communication interface

functions of the DL9040/DL9140/DL9240 Series.

IM 701310-51E Explains the operating procedures of the

optional I LIN bus signal/SPI bus signal/UART signal analysis function.

IM 701310-61E Explains the operating procedures of the

optional power supply analysis function.

C bus signal/CAN bus signal/

Notes

Trademarks

• This manual, IM 701310-01E 8th Edition, applies to DL9000 digital oscilloscope with firmware version 4.40 or later.

If the most recent firmware version is not running on your DL9

000, not all of the

features described in this manual can be used.

ou can check the firmware version of your DL9000 on the ov

erview screen. For

instructions on how to open the overview screen, see section 18.4 in this manual.

o upgrade to the latest firmware version, go to the following W

eb page, and then

browse to the download page.

http://tmi.yokogawa.com/service-support/downloads/

• The contents of this manual are subject to change without prio continuing improvements to the instrument’s performance and functions.

r notice as a result of

The figures

given in this manual may differ from the actual screen.

• Every ef

fort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any questions or find any errors, please contact your nearest

• Copying or reproducing all or any part of the contents of this m permission of Y

YOKOGAWA dealer.

anual without the

okogawa Electric Corporation is strictly prohibited.

• Microsoft, Internet Explorer, MS-DOS, Windows, Windows NT, WIndows 2000, Windows Me, and Windows XP are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

• Adobe,

Acrobat, and PostScript are trademarks of Adobe Systems Incorporated.

• For purposes of this manual, the TM and ® symbols do not accompany their respective trademark names or registered trademark names.

• Other company and product names are trademarks or register

ed trademarks of their

respective companies.

IM 701310-01E

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Revisions

• 1st Edition: June 2005

• 2nd Editon: August 2005

•

3rd Editon:

• 4th Editon:

• 5th Editon:

• 6th Editon:

• 7th Edition: June 2008 Edition:

• 8th Edition: April 2009

January 2006 June 2006 Decenber 2006 August 2007 June 2008

IM 701310-01E

Page 5

WARNING

Œx??

CAUTION

’ˆÓ

VIDEO OUT

(XGA)

PROBE POWER

( )

12 V DC

TRIG COMP OUT

TRIG IN

TRIG OUT

ETHERNET 100BASE-TX

ACT

LINK

USB

GO/NOGO

MAIN POWER

OFF ON

100 - 120/220 - 240 V AC

300 VA MAX 50/60 Hz

MODEL

NO.

SUFFIX

Made in Japan

MODEL

NO.

SUFFIX

Made in Japan

YOKOGAWA

Checking the Contents of the Package

Unpack the box and check the contents before operating the instrument. If some of the contents are not correct or missing or if there is physical damage, contact the dealer from whom you purchased them.

DL9000

Check that the product that you received is what you ordered. The table below contains information about the available models, suffix codes, and options for your reference.

MODEL SUFFIX Specifications

701307 DL9040 Digital Oscilloscope 4 channels, 5 GS/s 500 MHz, max.

2.5 MW/channel

701308 DL9040L Digital Oscilloscope 4 channels, 5 GS/s 500 MHz, max.

6.25 MW/channel

701310 DL9140 Digital Oscilloscope 4 channels, 5 GS/s 1 GHz, max. 2.5

MW/channel

701311 DL9140L Digital Oscilloscope 4 channels, 5 GS/s 1 GHz, max.

6.25 MW/channel

701312 DL9240 Digital Oscilloscope 4 channels, 10 GS/s 1.5 GHz, max.

2.5 MW/channel

701313 DL9240L Digital Oscilloscope 4 channels, 10 GS/s 1.5 GHz, max.

6.25 MW/channel

Power cord -D UL/CSA Standard power cord (Part No.: A1006WD)

[Maximum rated voltage: 125 V]

-F VDE Standard Power Cord (Part No.: A1009WD) [Maximum rated voltage: 250 V]

-Q BS Standard Power Cord (Part No.: A1054WD) [Maximum rated voltage: 250 V]

-R AS Standard Power Cord (Part No.: A1024WD) [Maximum rated voltage: 250 V]

-H GB Standard Power Cord (Part No.: A1064WD) [Maximum rated voltage: 250 V]

Help language

Options /B5

1 /C8, /C9, /C10, and /C12 options cannot be specified simultaneously. 2 /G2 and /G4 options cannot be specified simultaneously. /G4 includes /G2.

IM 701310-01E

3 /F5, /F7, and /F8 options cannot be specified simultaneously.

-HE

-HJ

-HC

-HK

English Japanese Chinese Korea Built-in printer

/P2

Probe power supply

/C8

Built-in hard disk drive + Ethernet interface

/C9

Built-in hard disk drive + LXI compliant Ethernet interface

/C10

Ethernet interface

/C12

LXI compliant Ethernet interface

/G2

User-defined computation

/G4

Power supply analysis function

/F5

I2C + SPI + UART bus signal analysis function

/F7

CAN + LIN + SPI + UART bus signal analysis function

/F8

I2C + CAN + LIN + SPI + UART bus signal analysis function

iii

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Printer roll paper

B9988AE 3 rolls

Rubber Feet B8080FR 6 pcs

Soft case B8080FQ

Communication interface User’s manual

B8080RE(CD)

Front panel protection cover B8080EM

500 MHz Passive Probe PB500 701943 4 probes

UL/CSA Standard A1006WD

VDE Standard A1009WD

BS Standard A1054WD

AS Standard A1024WD

Power Cord (one of the following power cords is supplied according to the instrument’s suffix codes)

GB Standard A1064WD

*1 When using the optional built-in printer (/B5) *2 Included with the /F5, /F7, or /F8 option or /G4 option. *3 Printed manual IM701310-17E can be purchased separately. Contact your nearest

YOKOGAWA dealer.

A set of manuals

• This manual

• User’s manual for the serial bus signal analysis function or power supply analysis function (1 each)

• Other manuals

Checking the Contents of the Package

No. (Instrument Number)

When contacting the dealer from which you purchased the instrument, please give them the instrument number.

Standard Accessories

The standard accessories below are supplied with the instrument. Check that all contents are present and that they are undamaged.

IM 701310-01E

Page 7

Optional Accessories (Sold Separately)

The optional accessories below are available for purchase separately. For information and ordering, contact your nearest YOKOGAWA dealer.

Name Model Remarks

With the YOKOGAWA probe interface

Active probe PBA2500 7019131913913 DC to 2.5 GHz bandwidth, 100 k, 100 kW, 0.9 pF

PBA1500 7019141914914 DC to 1.5 GHz bandwidth, 100 k, 100 kW, 0.9 pF PBA1000 7019121912912 DC to 1 GHz bandwidth, 100 k, 100 kW, 0.9 pF

Differential probe PBD2000 701923 DC to 2 GHz bandwidth, 50 k, 50 kW, 1.1 pF

PBDH1000 701924 DC to 1 GHz bandwidth, 1 MW, max. �max. ��35 V

Current probe PBC100 701928 DC to 100 MHz bandwidth, 30 A, 30 A30 A

PBC050 701929 DC to 50 MHz bandwidth, 30 A, 30 A30 A Passive probeprobe PB500 701943 DC to 500 MHz bandwidth, 10 M500 MHz bandwidth, 10 M bandwidth, 10 M, 10 M Passive probe for 50probe for 5050

Low Capacitance

Probe DC BlockBlock 701975 For 50 W input, SMA, 30 MHz to 6 GHzSMA, 30 MHz to 6 GHz, 30 MHz to 6 GHz to 6 GHz6 GHz Passive probe for high voltageprobe for high voltagehigh voltage

100:1 probe 701944 DC to 400 MHz bandwidth, 1000 V400 MHz bandwidth, 1000 V bandwidth, 1000 V, 1000 V

FET probe probeprobe 700939 900MHz bandwidth, 2.5 M, 2.5 MW, 1.8 pF Differential probeprobe 700924 DC to 100 MHz bandwidth, max. �

Current probe 701932 DC to 100 MHz bandwidth, 30 A, 30 A30 A

Deskew correction signal source 701935 Approx. 0 to 5 V, Approx. to 5 V, Approx.5 V, Approx. -100 to 0 mA, Approx. to 0 mA, Approx.0 mA, Approx.

Dedicated GO/NO-GO cable 366973 — Trigger comparison output cable 701976 — Rack mount kit 701984-01 For EIA

PBL5000 701974

Checking the Contents of the Package

rms

DC to 5GHz bandwidth, 500, 500 W/1 kW, 0.25 pF/0.4 pF, with an SMA-BNC adapter

, 1.2 m in

rms

1400 V, max. �1400

700 V, max. �700

, 3 m in

V�1400 V

V�500 V

V�700 V

length

701945 DC to 250 MHz bandwidth, 1000 V250 MHz bandwidth, 1000 V bandwidth, 1000 V, 1000 V

length

700925 DC to 15 MHz bandwidth, max. �500 V, max. �500 701920 DC to 500 MHz bandwidth, max. common mode, max. common mode

�30 V 701921 DC to 100 MHz bandwidth, max. � 701922 DC to 200 MHz bandwidth, max. common mode, max. common mode

�60 V

701933 DC to 50 MHz bandwidth, 30 A, 30 A30 A

15 kHz

701984-02 For JIS

Spare Parts (Sold Separately)

The spare parts below are available for purchase separately. For information about the spare parts and ordering, contact your dealer.

Part Name Part No. Minimum Q’ty Remarks

Printer roll paper B9988AE 10 Thermo-sensible paper, 111 mm × 10 m

IM 701310-01E

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Safety Precautions

This instrument is an IEC protection class I instrument (provided with terminal for protective earth grounding). The general safety precautions described herein must be observed during all phases of operation. If the instrument is used in a manner not specified in this manual, the protection provided by the instrument may be impaired. Yokogawa Electric Corporation assumes no liability for the customer’s failure to comply with these requirements.

The Following Symbols Are Used on This Instrument.

Warning: handle with care. Refer to the user’s manual or service manual.

This symbol appears on dangerous locations on the instrument which require

special instructions for proper handling or use. The same symbol appears in the

corresponding place in the manual to identify those instructions.

Protective ground terminal

Functional ground terminal (do not use this terminal as a protective ground

terminal.)

Alternating current

Direct current

ON (power)

OFF (power)

Stand-by

In-position of a bi-stable push control

Out-posotion of a bi-stable push control

IM 701310-01E

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Safety Precautions

Make sure to comply with the precautions below. Not complying might result in injury or death.

WARNING

Use the Correct Power Supply

Before connecting the power cord, ensure that the source voltage matches the rated supply voltage of the DL9000 and that it is within the maximum rated voltage of the provided power cord.

Use the Correct Power Cord and Plug

To prevent the possibility of electric shock or fire, be sure to use the power cord supplied by YOKOGAWA. The main power plug must be plugged into an outlet with a protective earth terminal. Do not invalidate this protection by using an extension cord without protective earth grounding.

Connect the Protective Grounding Terminal

Make sure to connect the protective earth to prevent electric shock before turning ON the power. The power cord that comes with the instrument is a three-pin type power cord. Connect the power cord to a properly grounded three-pin outlet.

Do Not Impair the Protective Grounding

Never cut off the internal or external protective earth wire or disconnect the wiring of the protective earth terminal. Doing so poses a potential shock hazard.

Do Not Operate with Defective Protective Grounding or Fuse

Do not operate the instrument if the protective earth or fuse might be defective. Make sure to check them before operation.

Do Not Operate in an Explosive Atmosphere

Do not operate the instrument in the presence of flammable liquids or vapors. Operation in such environments constitutes a safety hazard.

Do Not Remove Covers

The cover should be removed by YOKOGAWA’s qualified personnel only. Opening the cover is dangerous, because some areas inside the instrument have high voltages.

Ground the Instrument before Making External Connections

Securely connect the protective grounding before connecting to the item under measurement or an external control unit. If you are going to touch the circuit, make sure to turn OFF the circuit and check that no voltage is present. To prevent the possibility of electric shock or an accident, connect the ground of the probe and input connector to the ground of the item being measured.

See below for operating environment limitations.

CAUTION

IM 701310-01E

This product is a Class A (for industrial environments) product. Operation of this product in a residential area may cause radio interference in which case the user will be required to correct the interference.

vii

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Waste Electrical and Electronic Equipment

Waste Electrical and Electronic Equipment (WEEE), Directive 2002/96/EC

(This directive is only valid in the EU.) This product complies with the WEEE Directive (2002/96/EC) marking

requirement. This marking indicates that you must not discard this electrical/ electronic product in domestic household waste.

Product Category With reference to the equipment types in the WEEE directive Annex 1, this

product is classified as a “Monitoring and Control instrumentation” product.

Do not dispose in domestic household waste. contact your local Yokogawa Europe B. V. office.

When disposing products in the EU,

viii

IM 701310-01E

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Symbols and Notation Used in This Manual

Safety Markings

The following markings are used in this manual.

Improper handling or use can lead to injury to the user or damage to

the instrument. This symbol appears on the instrument to indicate that the user must refer to the user’s manual for special instructions. The same symbol appears in the corresponding place in the user’s manual to identify those instructions. In the manual, the symbol is used in conjunction with the word “WARNING” or “CAUTION.”

WARNING

CAUTION

Calls attention to information that is important for proper operation of

Note

Calls attention to actions or conditions that could cause serious or

fatal injury to the user, and precautions that can be taken to prevent such occurrences.

Calls attentions to actions or conditions that could cause light injury to

the user or damage to the instrument or user’s data, and precautions that can be taken to prevent such occurrences.

the instrument.

Subheadings

On pages that describe the operating procedures in chapters 3 through 18, the following symbols are used to distinguish the procedures from their explanations.

Procedure

Explanation

Notation of Characters

• Bold characters used in the procedural explanations indicate c marked on the panel keys or the characters of the soft keys displayed on the screen menu.

• The SHIFT+xxx key refers to first pressing the SHIFT lights), and then pressing the xxx key pressed key appears on the screen.

Carry out the procedure according to the step numbers. All

procedures are written with inexperienced users in mind; experienced users may not need to carry out all the steps.

This section describes the setup items and the limitations regarding

the procedures. It may not give a detailed explanation of the function. For a detailed explanation of the function, see chapter 2.

haracters that are

key (the SHIFT key indicator

. The menu marked in purple above the

IM 701310-01E

Unit

k: Denotes 1000. Example: 100 kS/s (sample rate) K: Denotes 1024. Example: 720 KB (storage capacity of a floppy disk)

Page 12

Workflow

Measurement Preparation

Display waveforms on the screen

Waveform Display Conditions

Install the DL9000

Connect the power supply and turn it ON/OFF

Connect probes

Initialization

Auto setup

• Vertical axis

• Horizontal (time) axis

• Triggering

• Acquire waveforms (including GO/NO-GO)

• Display waveforms and information

Waveform Computation, Analysis, and Search

• Compute waveforms

• Analyze waveforms

• Search waveforms

Waveform Printing and Storage

• Print the display image

• Save various types of data

Section 3.2

Section 3.3

Sections 3.4 and 3.5

Section 4.4

Section 4.5

Sections 5.2 to 5.7 and 5.9 to 5.11 Section 5.8 Chapter 6 Chapter 7

Chapter 8

Chapter 9 Chapter 10 Chapters 10 and 11

Chapter 12 Chapter 13

The figure below is provided to familiarize the first-time user with the general workflow of the DL9000. For a description of each item, see the relevant chapter or section.

IM 701310-01E

Page 13

App

Index

Checking the Contents of the Package............................................................................................ iii

Safety Precautions ...........................................................................................................................vi

Chapter 1 Names and Functions of Parts

Chapter 2 Explanation of Functions

Waste Electrical and Electronic Equipment ................................................................................... viii

Symbols and Notation Used in This Manual .................................................................................... ix

Workow ...........................................................................................................................................x

1.1 Top Panel, Front Panel, and Rear Panel .......................................................................... 1-1

1.2 Operating Keys and Knobs .............................................................................................. 1-3

1.3 Screen Display ......................................................................................................

2.1 Block Diagram .................................................................................................................. 2-1

2.2 Channels and Displayed Waveforms ...............................................................................

2.3 Vertical and Horizontal Axes ............................................................................................. 2-3

2.4 Triggers

2.5

2.6 Display .......................................................................................................

2.7

2.8

2.9 Communications .......................................................................................................

2.10

Acquisition Conditions .................................................................................................... 2-16

Computation ................................................................................................................... 2-24

Analyzing and Searching ................................................................................................ 2-26

Other Useful Functions ................................................................................................... 2-33

............................................................................................................................ 2-7

..................... 2-21

........... 1-6

2-2

...... 2-32

Chapter 3 Making Preparations for Measurements

3.1 Handling Precautions ....................................................................................................... 3-1

3.2 Installing the Instrument ................................................................................................... 3-3

3.3 Connecting the Power ...................................................................................................... 3-5

3.4 Connecting the Probe ....................................................................................................... 3-8

3.5 Compensating the Probe (Phase Correction) .................................................................3-11

3.6 Setting the Date and Time

.............................................................................................. 3-13

Chapter 4 Basic Operations

4.1 Operations and Functions of Keys and the Rotary Knob ................................................. 4-1

4.2 Entering Values and Strings

4.3 Operating the DL9000 Using a USB Keyboard or a USB Mouse .....................................

4.4 Initializing Settings ............................................................................................................ 4-9

4.5

4.6 Storing and Recalling Setup Data .................................................................................. 4-13

4.7 Starting/Stopping Signal

4.8 Performing Calibration .................................................................................................... 4-16

Performing Auto Setup ...................................................................................................

............................................................................................. 4-3

Acquisition

............................................................................... 4-15

Chapter 5 Vertical and Horizontal Axes

5.1 Switching the Display of Input Waveforms ON and OFF .................................................. 5-1

IM 701310-01E

5.2 Setting the Offset Voltage

5.3 Setting the Vertical Position of the Waveform

5.4 Setting the Input Coupling ................................................................................................ 5-5

5.5 Setting Bandwidth Limits .................................................................................................. 5-7

5.6 Setting the Probe

5.7 Setting the Scale .............................................................................................................. 5-9

Attenuation ...........................................................................................

................................................................................................. 5-2

4-5

4-10

.................................................................. 5-4

5-8

Page 14

Contents

5.8 Setting Time Axis (T/div) ................................................................................................. 5-10

5.9 Using the Auto Scale Function ........................................................................................

5.10 Canceling the Offset Value

5.11 Displaying the Waveform Inverted ..................................................................................

5.12 Turning the Display of the Scale Value ON/OFF ............................................................ 5-14

5.13 Correcting the Skew

5.14

Automatic Zero Adjustment of the Current Probe ...........................................................

Chapter 6 Triggering

6.1 Setting the Trigger Mode .................................................................................................. 6-1

6.2 Setting the Trigger Position

6.3 Setting the Trigger Delay

6.4 Setting the Hold-Off T

6.5 Setting the Trigger Coupling, HF Rejection, 6-7

6.6 Activating an Edge

6.7 Activating a Conditional Edge Trigger

6.8 Activating a Trigger on a State Condition

6.9 Activating a Trigger on the OR Logic of Multiple Edge

6.10 Activating a Trigger on a Pulse Width

6.11 Activating a Trigger on a Conditional Pulse Width

6.12 Activating a Trigger on a State Condition

6.13 Setting the TV T

6.14 Triggering on a Serial Pattern Signal .............................................................................. 6-41

6.15 Triggering on an I

6.16 Triggering on a CAN Bus Signal ..................................................................................... 6-56

6.17 Triggering on a LIN Bus Signal

6.18 Triggering on a SPI Bus Signal

6.19 Triggering on a UAR

6.20 Activating a Trigger on an Event Cycle, Delay

5-11

............................................................................................. 5-12

5-13

....................................................................................................... 5-15

5-16

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

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

ime ................................................................................................. 6-6

Trigger Hysteresis, and Window Comparator ...

............................................................................................. 6-10

Trigger

............................................................................ 6-13

....................................................................... 6-17

Triggers ..................................... 6-21

............................................................................ 6-23

......................................................... 6-27

True Period ................................................... 6-31

rigger..................................................................................................... 6-35

C Bus Signal ..................................................................................... 6-46

....................................................................................... 6-67

...................................................................................... 6-69

T Signal .......................................................................................... 6-73

, or Sequence ......................................... 6-75

Chapter 7 Acquisition and Display

7.1 Setting the Acquisition Mode ............................................................................................ 7-1

7.2 Turning High Resolution Mode ON/OFF .......................................................................... 7-3

7.3 Setting the Record Length

7.4 T

7.5 Turning Interleave Mode ON/OFF

7.6 Turning Interpolation ON/OFF

7.7 Displaying Accumulated Waveforms

7.8 Setting the Action-On-Trigger Function ...........................................................................7-11

7.9 Activating the

7.10 Setting Waveform Zone GO/NO-GO Determination Conditions

7.11 Setting Rectangular Zone GO/NO-GO Determination Conditions .................................

7.12 Setting Polygonal Zone GO/No-Go Determination Conditions .......................................

7.13 Setting Waveform Parameter GO/NO-GO Determination Conditions

7.14 Setting FFT Parameter GO/NO-GO Determination Conditions

7.15 Setting X-Y Waveform Parameter GO/NO-GO Determination Conditions

7.16 Setting Telecom

urning Repetitive Sampling Mode ON/OFF .................................................................... 7-5

Action-On-Trigger Function Using GO/NO-

Test

Chapter 8 Display

8.1 Zooming the Waveform .................................................................................................... 8-1

8.2 Changing the Display Format ........................................................................................... 8-6

8.3 Setting the Interpolation Method ...................................................................................... 8-8

xii

................................................................................................ 7-4

.................................................................................... 7-6

.......................................................................................... 7-7

................................................................................ 7-8

GO Results ........................... 7-16

..................................... 7-22

7-28 7-32

............................ 7-36

...................................... 7-40

..................... 7-44

GO/NO-GO Determination Conditions .......................................... 7-47

IM 701310-01E

Page 15

App

Index

Contents

8.4 Changing the Graticule ..................................................................................................... 8-9

8.5 Adjusting the Backlight ................................................................................................... 8-10

8.6 Setting Signal Labels .......................................................................................................8-11

8.7 T

8.8 Setting the Translucent Display

aking and Clearing Snapshots ...................................................................................... 8-12

, Waveform Display Colors, and Brightness .................. 8-13

Chapter 9 Computation

9.1 Setting Computation Channels, Operators, Units, and Display Ranges .......................... 9-1

9.2 Performing Linear Scaling ................................................................................................ 9-4

9.3 Performing

9.4 Performing Integration ...................................................................................................... 9-8

9.5 Shifting the Phase ......................................................................................................

9.6

9.7 Smoothing W

9.8 Counting Edges .............................................................................................................. 9-17

9.9

9.10

Setting a Filter (IIR Filter) ............................................................................................... 9-12

Counting Rotations ......................................................................................................... 9-19

User-DenedComputation(Optional) ............................................................................ 9-21

Arithmetic Functions ......................................................................................

aveforms (Using a Moving A

Chapter 10 Analysis and Search

10.1 Measuring Using Cursors ............................................................................................... 10-1

10.2 Performing Automated Measurement of Waveform Parameters

10.3 Calculating Statistics on the Measured Waveform Parameter Values

10.4 Performing a Telecom

10.5 Selecting the Analysis T

10.6 Viewing the Phase between Measured Waveforms on the XY Display ....................... 10-36

10.7 Performing FFT Analysis

10.8 Displaying a Histogram, Trend, or List of the

Parameters ................................................................................................................... 10-45

10.9

10.10 Selecting the Search Type and Skip Mode, Executing the

10.1

10.12 Searching Serial Pattern Signals .................................................................................. 10-68

DisplayingtheFrequencyDistributionofaSpeciedArea(AccumHistogram) ...........

Results ......................................................................................................................... 10-58

1 Searching Waveform Signals

9-6

.... 9-10

verage) ......................................................... 9-15

.................................. 10-16

......................... 10-25

Test (Mask Test and Eye Pattern Measurement) ...................... 10-29

ype ......................................................................................... 10-34

.............................................................................................. 10-39

Automatically Measured Waveform

10-53

Search, and Displaying the

....................................................................................... 10-61

Chapter 11 Displaying and Searching History Waveforms

11.1 Displaying History Waveforms .........................................................................................11-1

11.2 Searching History Waveforms Using Waveform Zones (W

11.3 Searching History Waveforms Using a Rectangular Zone (RECT

11.4 Searching History Waveforms Using a Polygonal Zone (POL

11.5 Searching History Waveforms Using Waveform Paramete 11-21

11.6 Searching History W

11.7 Searching History Waveforms Using XY W

aveforms Using FFT Parameters (FFT

aveform Parameters (XY History Search) .11-31

Chapter 12 Printing Screen Images

12.1 Installing the Roll Paper into the Built-in Printer (Optional) ............................................ 12-1

12.2 Printing Using the Built-in Printer (Optional) ................................................................... 12-4

12.3 Printing Using a USB Printer .......................................................................................... 12-5

12.4 Printing Using a Network Printer(Optional) .................................................................... 12-8

IM 701310-01E

ave History Search) .............11-5

History Search) ......11-11

YGON History Search) ..11-16

rs (MEASURE History Search) ...

History Search) ...............11-26

xiii

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Contents

Chapter 13 Saving and Loading Measurement Data

13.1 Flash ATA Memory Card ................................................................................................. 13-1

13.2 Connecting a USB Storage Medium to the USB Port .................................................... 13-2

13.3 Connecting to a Network Drive ....................................................................................... 13-3

13.4 Saving/Loading the Setup Data ...................................................................................... 13-4

13.5 Saving/Loading the Measurement Data ....................................................................... 13-10

13.6 Saving and Loading

13.7 Saving/Loading Waveform Zones, Polygonal Zones, and Mask Patterns

13.8 Saving Screen Image Data .......................................................................................... 13-25

13.9 Saving

13.10 Changing the File Attributes and Deleting Files

13.11 Copying/Moving Files ................................................................................................... 13-35

13.12 Changing the Directory Name or File Name of the Storag

13.13 Connecting to a PC Using the USB Port ...................................................................... 13-41

Analysis Results

Creating Directories

Accumulated and Snapshot Waveforms

............................................................................................... 13-28

...................................................................................................... 13-38

Chapter 14 Displaying Reference Waveforms

14.1 Turning ON/OFF the Reference Waveform Display ....................................................... 14-1

14.2 Displaying Stored Data as Reference Waveform ...........................................................

14.3 Displaying Waveforms Inverted ......................................................................................

14.4 Saving Data .................................................................................................................... 14-5

14.5

14.6 Displaying History Waveforms Automatically

14.7 Displaying the Acquisition T

Displaying Scale Values and Labels...............................................................................

ime of a Loaded Waveform ................................................. 14-8

...................................... 13-17

.................... 13-21

........................................................... 13-32

e Medium/

14-2 14-4

14-6

................................................................. 14-7

Chapter 15 Ethernet Communications (Optional)

15.1 Connecting the DL9000 to the Network ......................................................................... 15-1

15.2 Setting the TCP/IP

15.3 Saving and Loading Measurement/Setup/Image Data on a Network Drive .................

15.4 Setting the Mail Transmission (SMTP

15.5 Using SNTP to Set the Date and T

15.6 Accessing the DL9000 from a PC (File Server) ........................................................... 15-21

15.7 Using a PC to Monitor the DL9000 and Change Its Settin

15.8 Setting the the Network Printer .................................................................................... 15-30

15.9 Checking the

15.10 ConguringaFirewall ................................................................................................... 15-33

15.11 Initializing /C12)

All Ethernet Interface Settings (Only on models with the LXI option, /C9 and

............................................................................................................................. 15-35

.......................................................................................................... 15-3

Client Function) ................................................ 15-16

ime ......................................................................... 15-20

Availability of the Ethernet Interface

Chapter 16 Rear Panel Input and Output

16.1 External Trigger Input (TRIG IN) .................................................................................... 16-1

16.2 Trigger Output (TRIG OUT) ............................................................................................ 16-2

16.3 RGB Video Signal Output (RGB VIDEO OUT) ............................................................... 16-3

16.4 GO/NO-GO Signal Output .............................................................................................. 16-4

16.5 Trigger Comparator Signal Output ................................................................................. 16-6

Chapter 17 Other Operations

17.1 Changing the Message Language, Menu Language, and Font Size, and Turning ON/OFF

the Click Sound .............................................................................................................. 17-1

17.2

17.3 Changing the USB Keyboard Language ........................................................................ 17-4

Listing the Setup Data .................................................................................................... 17-3

15-13

gs (Web Server)

....................................................... 15-32

................. 15-24

xiv

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Page 17

App

Index

Contents

Chapter 18 Troubleshooting, Maintenance, and Inspection

18.1 If a Problem Occurs ........................................................................................................ 18-1

18.2 Messages and Corrective Actions ..................................................................................

18.3 Carrying Out a Self-Test .................................................................................................

18.4 System Overview ......................................................................................................... 18-10

18.5

18.6 Formatting Internal Memory and Built-in Hard Disk ..................................................... 18-12

18.7 Recommended Replacement Parts ............................................................................. 18-13

Collectively Deleting the Data in the Internal Memory and Built-in Hard Disk ...............

18-2 18-7

18-11

Chapter 19 Specications

19.1 Models ............................................................................................................................ 19-1

19.2 Input Section .................................................................................................................. 19-1

19.3

19.4

19.5

19.6

19.7

19.8 Auxiliary Inputs and Outputs .......................................................................................... 19-8

19.9 Storage .......................................................................................................

19.10

19.11 GeneralSpecications ..................................................................................................19-11

19.12 External Dimensions .................................................................................................... 19-14

Trigger Section ............................................................................................................... 19-2

Time Axis ........................................................................................................................ 19-4

Display Section ............................................................................................................... 19-4

Functions ........................................................................................................................ 19-4

Built-in Printer (/B5 option) ............................................................................................. 19-7

.................... 19-9

Computer Interfaces ..................................................................................................... 19-10

Appendix

Index

Appendix 1 Relationship between the Time Axis Setting, Sample Rate and Record Length ...App-1

Appendix 2 How to Calculate the Area of a Waveform ...........................................................App-14

Appendix 3 Key Assignments for the USB104 Keyboard Appendix 4 Waveform Parameter Integrals and Derivatives

Appendix 5 ASCII Data File Format .................................................................................... App-18

....................................................App-15

...............................................App-17

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Page 18

Built-in printer

Prints the display contents. For installing the paper roll, see section 12.1. For printing operations, see section 12.2.

ESC

SNAP

SNAP CLEAR

RESET

SET

7 8 9

FILE

SHIFT

SYSTEM

EXP

CLEAR

D E F X

k m

u n p

4 5 6

1 2 3

+/-

CA B

CURSOR

PARAM

TELECOM TEST

WINDOW 1

WINDOW 2

FORM

ACCUM CLEAR

ZOOM 1

ZOOM 2

DISP 2 HISTORY CLEAR

DISP

MAG

INTENSITY

SETUP

HELP

HISTORY

MEASURE

ANALYSISXYDISPLAY ZOOM

ACCUM

PUSH

FINTE

CH 1

CH 2

CH 3

CH 4

M 1

M 2

M 3

M 4

VERTICAL POSITION

PUSH

FINTE

SCALE

ACQ

START STOP

TRIG

MODE

HOLD OFF

POSITION DELAY

EDGE

STATE

ACQUIRE

HORIZONTAL

TRIGGER

T DIV

ACQ

COUNT ACTION

TRIG’D

LEVEL

COUPLING

EVENT

INTERVAL

WIDTH

SOURCE

ENHANCED

SAMPLING

LENGTH

CH 1

POWER

COMP

CH 2 CH 3 CH 4

LCD display

ESC key

Soft keys

For a description of the display contents, see chapter 8.

Used to select items on the soft key menu that appears on the screen during setup.

Operation keys and knobs

Used to clear the soft key menu and the pop-up menu.

Used when saving data to a PC card. See section 13.1.

For a description of each, see page 1–3.

Signal output terminal for probe compensation adjustment (1 kHz / 1Vp-p)

Functional ground terminal

Power switch

See section 3.3.

Terminals where probes are connected. See section 3.4.

Rotary knob

PC card slot

USB connector for connecting peripheral devices

Used to change setup values and move the cursor.

Used when connecting a USB printer, USB keyboard, USB mouse, or USB storage media. See sections 4.3 and 12.3.

Outputs the phase compensation signal for the probe. For the phase compensation procedure of the probe, see section 3.5.

Connect the ground cable when compensating the phase of a probe.

Signal input terminals (terminals with a probe interface function)

Chapter 1 Names and Functions of Parts

1.1 Top Panel, Front Panel, and Rear Panel

Top Panel

Front Panel

Names and Functions of Parts

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1-1

Page 19

WARNING

CAUTION

VIDEO OUT

(XGA)

PROBE POWER

( )

12 V DC

TRIG COMP OUT

TRIG IN

TRIG OUT

ETHERNET

100BASE-TX

ACT

LINK

USB

GO/N OGO

MAIN POWER

OFF ON

100 - 12 0/220 - 240 V AC

300 VA MAX 50 /60 Hz

MODEL

NO.

SUFFIX

Made in Japan

Power connector

See section 3.3.

Main power switch

See section 3.3.

USB connector for connecting to a PC

Used when displaying the DL9000 display image on an external display. See section 16.3.

Video signal output connector

Used when connecting to a network. See section 15.1.

Ethernet port (option)

Outputs the GO/NO-GO determination output signal. See section 16.4.

GO/NO-GO output connector

Used to supply power to an FET probe or a current probe made by YOKOGAWA. See section 3.4.

Probe power terminal (option)

Used when outputting the trigger signal externally. See section 16.2.

Trigger output terminal

Used when inputting an external trigger signal. See section 16.1.

External trigger input terminal

Outputs the trigger comparator signal. See section 16.5.

Comparator output

Used when connecting a PC with a USB interface. See the Communication Interface User’s Manual (IM701310-17).

Used when saving data to a PC card. See section 13.1.

PC card slot

ETHERNET

100BASE-TX

Marking on models with the LXI option (/C9 and /C12)

1.1 Top Panel, Front Panel, and Rear Panel

Rear Panel

1-2

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1.2 Operating Keys and Knobs

Vertical Axis, Channel, and Computation

CH1 to CH4 keys ►Sections 5.1 to 5.14, 8.6

These display menus for switching the display of input channel ON/OFF, vertical position, coupling, probe type, offset voltage, bandwidth limit, expansion or reduction of the vertical axis, linear scaling, and signal labels. Pressing one of these keys before using the SCALE knob assigns the corresponding channel to the SCALE knob operation. Each CH key lights when the corresponding channel is ON.

M1 to M4 keys ►Chapter 9, Chapter 14

These keys are used for waveform computation settings, and settings relating to reference waveforms. Each M key lights when the corresponding channel is ON.

POSITION knob

Changes the center position when you change the voltage range. This knob has a push switch feature. You can press the knob to switch the setting resolution. If you press the knob and Fine lights, the setting resolution is set to fine.

SCALE knob

This sets the vertical axis sensitivity. Before turning this knob, press one of the CH1 to CH4, or M1 to M4 keys, to select the waveform adjusted. If you change this while signal acquisition is stopped, the change takes effect when signal acquisition is restarted. This knob includes a push switch, and can be pressed to change the resolution of the setting. When the knob is pressed, lighting the Fine indicator, the resolution is finer.

Names and Functions of Parts

Signal acquisition and Horizontal Axis

ACQ key ►Sections 7.1, 7.2

Displays a menu for setting the method of signal acquisition.

START/STOP key ►Section 4.7

Depending on the trigger mode, this starts/stops signal acquisition. During signal acquisition, the key lights.

TRIG MODE/HOLD OFF key ►Sections 6.1, 6.4, 7.1, 7.8

Displays a menu for seting the trigger mode and hold-off. Pressing the SHIFT key before pressing the MODE key displays the action on trigger menu.

SAMPLING/LENGTH key ►Sections 7.3 to 7.6

Displays a menu for record length, equivalent time sampling, interleave, and interpolation setting.

POSITION/DELAY key ►Sections 6.2, 6.3

Displays a menu for the trigger position and trigger delay settings.

EDGE/STATE key ►Sections 6.6 to 6.9

Displays a menu for Edge/State trigger settings. Press one of four keys, including the following ENHANCED key, WIDTH key, and EVENT INTERVAL key, to select the trigger type. The pressed key lights, indicating that it is selected.

WIDTH key ►Sections 6.10 to 6.12

Sets the Width trigger.

ENHANCED key ►Sections 6.13 to 6.19

Displays a menu for TV trigger and serial bus trigger settings.

EVENT INTERVAL key ►Section 6.20

Displays a menu for event trigger settings.

SOURCE key ►Chapter 6

Displays a menu for trigger sources setting.

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Page 21

RESET

SET

7 8 9

FILE

SHIFT

SYSTEM

EXP

CLEAR

D E F X

k m

u n p

4 5 6

1 2 3

+/-

CA B

CURSOR

PARAM

TELECOM TEST

WINDOW 1

WINDOW 2

FORM

ACCUM CLEAR

ZOOM 1

ZOOM 2

DISP 2 HISTORY CLEAR

DISP

MAG

INTENSITY

SETUP

HELP

HISTORY

MEASURE

ANALYSISXYDISPLAY ZOOM

ACCUM

Numeric keypad

1.2 Operating Keys and Knobs

LEVEL/COUPLING key ►Section 6.5

Displays a menu for trigger coupling, HF rejection, Window comparator, and other settings.

T/DIV knob ►Section 5.8

Sets the time axis scale. If you change this while signal acquisition is stopped, the change takes effect when signal acquisition is restarted.

Analysis/Screen Display/Screen Image Printing/Data Saving/History Waveform/ etc.

Analysis

Screen Display

1-4

CURSOR key ►Section 10.1

Displays a menu for cursor measurement.

PARAM key ►Sections 10.2, 10.3

Displays a menu for automatic waveform parameter measurement and statistics processing.

SHIFT+PARAM key (TELECOM TEST) ►Sections 10.4

Pressing the SHIFT key, followed by the PARAM key displays a menu for the telecom test.

WINDOW 1 key, WINDOW 2 key ►Sections 10.5 to 10.9

Display a menu for serial bus signals analysis, XY display, FPT analysis, waveform parameter histogram and list, and other settings. When the display is ON, the key lights.

FORM key ►Sections 8.2 to 8.5, 8.8

Displays a menu relating to screen display.

ACCUM key ►Section 7.7

Displays a menu for waveform overwriting display.

SHIFT+ACCUM key (ACCUM CLEAR) ►Section 7.7

Pressing the SHIFT key, followed by the ACCUM key clears the overwriting waveform.

INTENSITY key ►Section 7.7

Pressing this key changes the intensity when the gradation mode is set to intensity gradation in accumulated display.

ZOOM 1 key, ZOOM 2 key ►Sections 8.1, 10.10 to 10.13

Display a menu for waveform zoom display and data search functions.

SHIFT+ZOOM 1 key (DISP 1), SHIFT+ZOOM 2 key (DISP 2) ►Sections 8.1

Pressing the SHIFT key, followed by the ZOOM key displays a menu relating to zoom waveform positioning.

MAG knob ►Section 8.1

In a zoom display, turn this knob to change the zoom ratio on the applicable vertical/ horizontal axis.

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1.2 Operating Keys and Knobs

Screen Image Printing/Data Saving/History Waveform/etc.

RESET key

Returns a numeric input value to its default.

SET key

Confirms a menu item selected with the rotary knob.

Arrow keys ( keys)

The left and right arrow keys move the digit cursor sideways when entering a numeric value. Use the up and down arrow keys to enter a numeric value.

Numeric keys

Use this for entering numeric values, file names, and so on.

PRINT key ►Sections 12.2 to 12.4, 13.8

Prints the screen image data.

SHIFT+PRINT key (MENU) ►Sections 12.2 to 12.4, 13.8

Pressing the SHIFT key, followed by the PRINT key displays a menu when printing the screen image data to the internal printer or USB printer.

FILE key ►Sections 13.4 to 13.7, 13.9 to 13.12

Displays a menu for data saving and recall operations using a PC card or USB memory, and for file operations.

SYSTEM key

Displays a menu relating to calibration, network, computer interface settings, date and time, message language, click sound, self-test, and storage media formatting. Displays system information (which options are installed, and firmware version).

SHIFT key

Pressing this once lights the key, and enables the functions indicated on each key by a purple legend above the key. Pressing the key once more returns to the normal functions.

SETUP key ►Sections 4.4, 4.5

Displays a menu for the initialization function returning settings to their factory defaults, the auto setup function automatically setting values according to input signals, and for storing and recalling setting information. On models with the /G4 option, a menu related to power supply analysis function appears. For a description of the power supply analysis function, see the Power Supply Analysis Function User’s Manual IM701310-61E.

HISTORY key ►Chapter 11

Displays a menu for displaying waveforms using the history memory function, and when searching.

SHIFT+HISTORY key (HISTORY CLEAR) ►Section 11.1

Pressing the SHIFT key, followed by the HISTORY key clears the displayed history waveform.

Names and Functions of Parts

IM 701310-01E

1-5

Page 23

1.3 Screen Display

Stopped Running (acquisition in progress)

Pre (acquiring pre data)

Waiting for trigger

Post (acquiring post data)

Displayed record length

Acquisition mode

Sample rate

Signal acquisition status

T/div. See section 4.2

Input channel status

Coupling Scale Probe attenuation rate

Trigger position

Computing/Reference waveform status

Signal acquisition count

Trigger position mark

Ground level mark

Vertical position mark

Trigger coupling, HF rejection,

hysteresis, and trigger delay

Trigger mode

Trigger source, Polarity

Trigger level

Normal Waveform Display Screen

1-6

Acquisition Mode Display

Normal: Normal mode Envelope: Envelope mode Average: A

verage mode

Note

The LCD screen of this instrument may have a number of defective pixels.

IM 701310-01E

Page 24

X-axis of Z1 zoom range

Y-axis of Z1 zoom range

T/div of the normal waveform

Zoom position of the zoom waveform Z1

T/div of Z2

Normal waveform area

Zoom waveform area

Z1 waveform area Z2 waveform area

V/div of Z1

V/div of Z2

Displayed only if the waveform is zoomed vertically

Displayed record length of the Normal waveform

Zoom position of the zoom waveform Z2

T/div of Z1

Analysis results

WINDOW 1

(analysis screen 1)

WINDOW 2

(analysis screen 2)

Waveform parameter measurements

X-axis scale of XY waveform

Y-axis scale of XY waveform

1.3 Screen Display

Screen Displaying Zoom Waveforms

Names and Functions of Parts

Screen Displaying the Analysis Result

IM 701310-01E

1-7

Page 25

ESC

RESET

SET

D E F X

2 3

CLEAR

EXP

FILE UTILIT Y

FILE

SYSTEM

SHIFT

SETUP

HELP

HISTORY

CLEAR

HISTORY

ACQ

COUNT/ACTION

ZOOM

DISP1

DISP2

ZOOM1

ZOOM

MAG

ACQUIRE/HORIZONTAL

ACQ

START/STOP

SAMPLING/

LENGTH

POSITION/

DELAY

T/DIV

TRIGGER

EDGE/ STATE

ENHANCED

WIDTH

EVENT

INTERVAL

SOURCE

DISPLAY

INTENSITY

ACCUM

CLEAR

FORM

ACCUM

ANALYSIS/ XY

WINDOW1

WINDOW2

MEASURE

CURSOR

TELECOM TEST

PARAM

VERTICAL

CH1

CH2

CH3

CH4

POSITION

TRIG'D

TRIG MODE/

HOLD OFF

PUSH

FINE

PUSH

FINE

SCALE

SNAP

CLEAR

SNAP

POWER

COMP

CH1 CH2 CH 3 CH 4

/20pF 150

Vrms

CATI 5

Vrms,10Vpk

LEVEL/

COUPLING

DL9240L

10GS/s

1.5GHz

DIGITAL OSCILLOSCOPE

USB printer

USB keyboard

Built-in printer (optional)

Screen image print

External trigger input

Video signal (XGA) GO/NO-GO output Trigger comparator output

Screen image data

Input

USB peripheral device interface

USB interface Ethernet interface (optional)

USB mouse

Input

External USB

device

USB peripheral device interface

PC card

Analog signal input

Waveform data Setup data Screen image data

Waveform data / Setup data Screen image data Polygon graphing

Waveform data Setup data Screen image data

Device under measurement

CH1

External

Trigger

Input

ATT

Pre-

AMP

Cross

Point

A/D

Acquisition

Memory

Data

Processing

Memory

CPU

Color LCD

Trigger

Circuit

Time Base

Trigger Output

Trigger Comparator Output

GO/NO-GO Output

(optional)

CH2

CH3

CH4

Primary

Memory

Display

Memory

Display

Processing

Circuit

Built-in

Printer

PC Card

(optional)

Ethernet

Video

Output

USB

Peripheral

USB

Controller

Primary Data

Processing Circuit

Secondary Data

Processing Circuit

Key board

Chapter 2 Explanation of Functions

2.1 Block Diagram

System Configuration

Block Diagram

Explanation of Functions

IM 701310-01E

Signal Flow

The signal applied to each signal input terminal is first passed to the vertical control circuit consisting of an attenuator (ATT) and pre-amplifier. At the attenuator and pre-amplifier, the amplitude of each input signal is adjusted according to the settings such as the input coupling, voltage sensitivity (Scale), and offset voltage. The adjusted input signal is then passed to the cross-point switch. The signal input to the cross-point switch is passed to the A/D converter according to the interleave setting.

At the A/D converter, the received voltage level is converted into digital values. The digital data is written to the primary memory by the primary data processing circuit at the sample rate that matches the time axis setting.

When the trigger is applied, data written to the primary memory is transferred to the acquisition memory.

The data written to the acquisition memory is converted into waveform display data by the secondary data processing circuit, transferred to the waveform processing circuit, and stored in the display memory. The waveforms are displayed on the LCD using the data stored in the display memory.

2-1

Page 26

2.2 Channels and Displayed Waveforms

There are three types of waveform that can be displayed on the DL9000.

• Input waveforms

• Computed waveforms

• Reference waveforms The reference waveform can be selected from input waveforms, computed waveforms, and previously stored input or computed waveforms. The DL9000 provides the following channels.

• Input channels (CH1 to CH4)

• Computation channels (M1 to M4)

By assigning a waveform to each channel, the assigned waveforms can be displayed. Depending on the channel type, different waveforms can be assigned as follows. Input channels: Measurement waveforms currently being captured, computed

waveforms

Computation channels: Computed waveforms, reference waveforms

Note

If a computed waveform is assigned to an input channel, it is displayed as MATH5 to MATH8.

Input Waveforms

These are waveforms for measurement input to an input channel.

Computed Waveforms

These are waveforms computed from input waveforms or reference waveforms. In the calculation equation that can be set in the menu for channels 1 to 4 is fixed, being the input waveform of the input channel being set. When a calculation is set in the menu for channels 1 to 4, the data of the channel for which the calculation is set is the calculation value. For details of computations, see page 2-24.

Note

To use a calculated result as a source for a different calculation equation, set the calculation equation in the menu for channels 1 to 4, then use that result (one of channels 1 to 4) as the source in the separate calculation formula.

Reference Waveforms

Any of input waveforms, other computed waveforms, and previously stored input or computed waveforms can be selected for display. The history information for the selected waveform is also read in. It is also possible to make a separate selection from the history waveforms to display only one, or to display all of the history waveforms superimposed. A history waveform refers to any previous waveform stored in acquisition memory. For details of history waveforms, see Chapter 11.

2-2

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Page 27

2.3 Vertical and Horizontal Axes

1 div = 1.00 V 1 div = 0.500 V

If 1.00 V/div is changed to 0.500 V/div

Vertical position mark

GND level mark

Position 2.00 div

Position −3.00 div

Position 0.00div

Vertical position mark

The vertical sensitivity setting is used to adjust the displayed amplitude of the waveform for easy viewing of the signal. The vertical sensitivity is set by assigning a voltage or a current value to one grid square (1 division) on the screen. By switching attenuators with different attenuation and changing the amplification of the pre-amplifier, the sensitivity changes in steps (for example, voltage sensitivity changes in steps as in 1 V/div, 2 V/div, and 5 V/div).

Note

Vertical Sensitivity Setting and Measurement Resolution To measure a voltage with high precision, the vertical sensitivity should be adjusted so that the input signal is measured with as large an amplitude as possible. The DL9000 uses 8-bit A/D converters to sample the input signal at a resolution of 250 levels (LSB). The waveforms are displayed using 25 levels per division. Valid Data Range The output with 250 levels as described above is displayed at 25 levels per division, and therefore the effective display range is �5 divisions from the center of the screen. However, if the vertical axis position is moved after stopping data (signal) acquisition, the valid data range also moves by the same amount.

Explanation of Functions

Vertical Position of the Waveform ►For the procedure, see section 5.3

Since the DL9000 can display eight waveform channels, including computation channels, the waveforms are displayed superimposed, and can be difficult to read. In this case, you can change the display position of waveforms on the vertical axis (vertical position) in the range of �4 divisions for easier viewing. The vertical sensitivity switches around the vertical position (mark).

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2-3

Page 28

Vertical

control

circuit

Input terminal

1 MΩ

Vertical

control

circuit

Input terminal

DC1 MΩ

Vertical

control

circuit

Input terminal

50 Ω

DC50 Ω

Vertical

control

circuit

Input terminal

1 MΩ

AC1 MΩ GND

2.3 Vertical and Horizontal Axes

Input Coupling ►For the procedure, see section 5.4

If you want to observe just the amplitude of an AC signal, it is best to remove the DC component from the input signal. On the other hand, there are times when you want to check the ground level or observe the entire input signal (both the DC and AC components). In these cases, you can change the input coupling setting. By changing the input coupling, the method used to input the input signal to the vertical control circuit (voltage axis) is switched. The following types of input coupling are available.

AC1 MΩ

The input signal is coupled to the attenuator of the vertical control circuit through a capacitor. This setting is used when you want to observe only the amplitude of the AC signal, eliminating the DC component from the input signal.

DC1 MΩ

The input signal is directly coupled to the attenuator of the vertical control circuit. Use this setting if you want to observe the entire input signal (DC component and AC component).

DC50 Ω

ThesameasforDC1MΩabove,exceptthattheinputimpedanceis50W. Care is

required, as this reduces the maximum input voltage.

GND

The input signal is coupled to the ground not to the attenuator of the vertical control circuit. You can use this setting to check the ground level on the screen.

Probe Attenuation/Current-to-Voltage Conversion Ratio ►For the procedure, see section 5.6

Normally a probe is used in connecting the circuit being measured to the measurement input terminal. Using a probe has the following advantages.

• A

voids disturbing the voltage and current of the circuit being measured.

• Inputs the signal with no distortion. Expands the voltage range that the DL9000 can measure.

•

The DL9000 is supplied with 500 MHz passive probes. The supplied probe attenuates the measured voltage signal by a factor of 1/10. When using the probe, in order to read the measurement voltage correctly, the attenuation setting on the DL9000 must be set to match the probe attenuation. The DL9000 automatically recognizes when the supplied 500 MHz passive probes (voltage probes) are connected, and sets the attenuation ratio to 10 : 1. In addition to the 10 : 1 setting, the DL9000 has settings for a voltage probe of 1 : 1, 100 : 1, and 1000 : 1, and for a current probe settings of 1 A : 1 V, 10 A : 1 V, and 100 A : 1 V. When using probes, set the attenuation ratio to match that of the probe.

2-4

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Page 29

Offset Voltage ►For the procedure, see section 5.2

1.00 V/div Offset 0.00 V Position 0.00 div

1.00 V/div Offset –2.00 V Position 0.00 div

0.500 V/div Offset –2.00 V Position 0.00 div

When Offset Cancel is OFF

When Offset Cancel is ON

Vertical position mark

GND level mark

1 div = 500 µs

10 div = 5 ms

1 div = 1 ms

10 div = 10 ms

To observe a signal riding on top of a predetermined voltage, an offset voltage can be applied to subtract the predetermined voltage so that only the changes in the signal can be observed with higher vertical sensitivity. Usually, the offset voltage does not affect the cursor measurement values, the result of the automated measurement of waveform parameters, or the computed values. However, by setting Offset Cancel to ON (see section 5.10), you can calculate with the offset voltage subtracted from cursor measurement values, results of the automated measurement of waveform parameters, and computed values.

2.3 Vertical and Horizontal Axes

Explanation of Functions

Inverted Waveform Display

This inverts the waveform display about the Position value as center. The inversion applies to the display only, and does not affect the measurement value. Setting the inverted display ON/OFF does not affect waveform parameter automatic measurement values or calculations.

Bandwidth Limit ►For the procedure, see section 5.5

You can set a upper bandwidth limit on the input signal for each channel. You can observe signals with the noise components above the specified frequency eliminated. The frequency can be selected from FULL, 200 MHz, 20 MHz, 8 MHz, 4 MHz, 2 MHz, 1 MHz, 500 kHz, 250 kHz, 125 kHz, 62.5 kHz, 32 kHz, 16 kHz, and 8 kHz.

Horizontal Axis (Time Axis)

Time Axis Setting ►For the procedure, see section 5.8

The time axis scale (T/div) is set as time per grid square (1 div). The setting range is from 500ps/div to 50s/div. Since horizontal axis display range is 10 div, the waveform display time is T/div × 10.

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Page 30

2.3 Vertical and Horizontal Axes

Relationship between the Specified Record Length, Time Axis Setting, Sample Rate, and Display Record Length

If you change the time axis setting with respect to the specified record length of the acquisition memory, the sample rate and display record length change. For more details about this relationship, see Appendix 1.

Time Axis Setting and Roll Mode Display

If T/div is set to a certain range (see Appendix 1), instead of the displayed waveform being updated by a trigger (update mode), the waveform is displayed in roll mode. In roll mode, as new data is captured, the oldest values are deleted from the screen, as the waveform scrolls from right to left. Thus roll mode display allows waveforms to be observed in the same way as on a pen recorder. It is useful in observing low frequency signals or signals that change slowly. It is also useful in detecting glitches (spikes in the waveform) that occur intermittently.

* Roll mode display is also used when the trigger mode is set to single. However, the displayed

waveforms stop when a trigger is activated.

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2.4 Triggers

Trigger level

When set to rising ( ), the trigger is activated here (edge)

Trigger source

A trigger is a cue used to display the waveform on the screen. A trigger is activated when the specified trigger condition is met. At this point, the waveform is ready to be displayed on the screen.

Trigger Source, Trigger Slope, and Trigger Level

Trigger source

Trigger source refers to the signal that is used in checking the trigger condition.

Trigger slope

Trigger slope refers to the movement of the signal from a low level to a high level (rising edge) or from a high level to a low level (falling edge). When a slope is used as one of the trigger conditions, it is called a trigger slope.

Edge

The term “edge” is used to refer to the point at which the trigger source slope passes the trigger level (or if trigger hysteresis is set, the point at which it has passed the level by the hysteresis amount).

Trigger level

Trigger level refers to the level at which a trigger is activated when the trigger source passes the certain level. With simple triggers such as the edge trigger described later, a trigger is activated when the level of the trigger source passes through the specified trigger level.

Explanation of Functions

Trigger Type ►For the procedure, see sections 6.6 to 6.20

The DL9000 provides three basic trigger types: “Edge/State,” “Width,” and “Enhanced.” Then by setting “Event Interval,” a trigger can be applied that is dependent on the period of a recurring trigger condition, or the time interval between two triggers.

Edge/State trigger

There are four types of Edge/State trigger, as follows.

• Edge When the trigger source passes through the specified trigger level on a rising or falling

edge, a trigger is activated. Y external trigger signal, and the commercial power supplied to the DL9000. In the case of commercial power, a trigger is activated only on the rising edge.

ou can select the trigger source from input signals, the

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CH1

CH2

Qualify: CH1 = H, CH2 = L, AND, Trigger source: CH3, rising L: low level, H: high level

Trigger

CH3

CH1 CH2

Qualification false

Qualification true

Trigger

CH1

CH2

State: CH1 = H, CH2 = L, CH3/CH4 = X, AND Clock: None, Polarity: Enter L: low level, H: high level

Trigger

CH1

CH2

State condition false State condition false

State condition true

CH1

CH2

Trigger

CH3

CH1 CH2

CH1

CH2

State: CH1 = H, CH2 = L, CH3/CH4 = X, AND Clock: None, Polarity: Exit L: low level, H: high level

Trigger

CH1

CH2

State: CH1 = H, CH2 = L, CH4 = X, AND Clock: CH3, rising, Polarity: Enter L: low level, H: high level

CH1

CH2

Trigger

CH3

State: CH1 = H, CH2 = L, CH4 = X, AND Clock: CH3, rising, Polarity: Exit L: low level, H: high level

Normalized condition

CH1

CH2

Normalized condition

State condition false State condition false

State condition true

State condition false State condition false

State condition true

State condition false State condition false

State condition true

2.4 Triggers

• Edge (Qualified)

Activates a trigger on the edge of a single trigger source while the input signal states

meet the specified qualification

requirements.

• State

A trigger is activated in any of the following cases.

• When the state condition is met or ceases to be met.

•

The DL9000 checks the state condition at the rising or falling e

dge of the specified signal (clock signal) and normalizes the result (high if the state condition is met or low if not). A

trigger is activated when the normalized condition changes.

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Trigger source

More than

Trigger

t > T1

Trigger source

Less than

Trigger

t < T1

Trigger source

Between

Trigger

T1 < t < T2

Trigger source

Trigger

t >T1

Time out

Trigger source

Out of Range

Trigger

t < T1 or t > T2

CH1

CH2

State: CH1 = H, CH2 = L, AND, Trigger source: CH3, falling, More than L: low level, H: high level

Trigger

CH3

CH1

CH2

Qualification

false

Qualification

false

Qualification

true

t1 > T t2 > T

t3 > T

Qualification

true

Trigger (Trigger activates when the Qualification is true on the falling edge of CH3.)

2.4 Triggers

• Edge OR

A trigger is activated by an edge on multiple trigger sources. When an Edge OR

trigger is used, the frequency of the trigger sources is limited to 200 MHz or less.

Width trigger

A trigger is activated by the duration of a pulse (pulse width). There are three types of width trigger, as follows.

• Pulse A

trigger is activated according to the relationship of the pulse width of the single

trigger source and the specified time.

• At the end of a pulse longer than the specified time (More than

• At the end of a pulse shorter than the specified time (Less than)

• At the end of a pulse longer than specified time T1 and shorter than specified time T2 (Between)

• At the end of a pulse either shorter than specified time

T1 or longer than specified

time T2 (Out of range)

•

trigger when the pulse width exceeds the specified time (Time out)

)

Explanation of Functions

• Pulse (Qualified) A trigger is activated on the relationship between the pulse width of a single

trigger source and a specified time while the input signal states meet the specified qualifications. The timing at which the trigger is activated is the same as for Pulse trigger.

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CH1

CH2

State: CH1 = H, CH2 = L, CH3/CH4 = X, AND Clock: None, Polarity: True, More than L: low level, H: high level

Trigger

CH1

CH2

CH1

CH2

CH1

CH2

CH1

CH2

State: CH1 = H, CH2 = L, CH3/CH4 = X, AND Clock: None, Polarity: False, More than L: low level, H: high level

Trigger

CH1 CH2

State: CH1 = H, CH2 = L, CH4 = X, AND Clock: CH3, rising, Polarity: True, More than L: low level, H: high level

State condition

t > T1

State condition

t > T1

State: CH1 = H, CH2 = L, CH4 = X, AND Clock: CH3, rising, Polarity: False, More than L: low level, H: high level

CH1

CH2

CH1 CH2

Trigger

CH3

Normalized condition

t > T1

Trigger

CH3

Normalized condition

State condition false

State condition true

State condition false State condition false

State condition true

State condition false State condition false

State condition true

State condition true State condition true

State condition

false

2.4 Triggers

• Pulse State A trigger is activated in any of the following cases.

• When the time during which the

state condition is met or not met satisfies the

relationship with the specified determination time.

• The DL9000 checks and normalizes the state condition on the of the specified signal (clock source). A

trigger is activated when the time during

rising or falling edge

which the normalized condition is met or not met first satisfies the relationship with the specified time.

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2.4 Triggers

Enhanced

• TV trigger This trigger is used when observing a video signal. NTSC (525/60/2), PAL

and HDTV (1125/60/2) standards are supported. The horizontal sync signal can be set to any frequency, allowing a trigger to be taken from any TV signal, not necessarily one of the above standards.

• Serial

A trigger function for capturing serial pattern signals. The DL9000 synchronizes to the selected clock signal and detects a serial data

pattern. Y

ou can specify up to 128 bits for the serial data pattern used for triggering. You can set the CS signal, which controls the period over which the data source is checked, and the latch source, which specifies the timing for comparing patterns.

(625/50/2),

Explanation of Functions

• I

A trigger function for capturing I

C bus signals. Five trigger modes are available. Inter Integrated Circuit (I

C) bus is a bi-directional bus for inter-IC communications.

Note that the /F5 or /F8 option is required to analyze I2C bus signals.

• CAN

A trigger function for capturing CAN bus signals. Controller Area Network (CAN) is a serial communication protocol that has

been standardized internationally by the ISO (International Organization for Standardization). Note that the /F7 or /F8 option is required to analyze CAN bus signals.

•

LIN

trigger function for capturing LIN bus signals.

Local Interconnect Network (LIN) is a serial communication protocol mainly used in

vehicles. Note that the /F7 or /F8 option is required to analyze LIN bus signals.

• SPI

A trigger function for capturing SPI bus signals.

Serial Peripheral Interface (SPI) is a synchronous serial bus that is widely used for

inter-IC communications and data communications. Note that the /F5, /F7, or /F8 option is required to analyze SPI bus signals.

• UART

trigger function for capturing UART bus signals.

Universal Asynchronous Receiver T

ransmitter (UART) is an integrated circuit that performs serial-to-parallel conversion and parallel-to-serial conversion. UART is generally used in inter-device communication such as with EIA RS-232. Note that the /F5, /F7, or /F8 option is required to analyze UART signals.

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Event

More than

t2 t3

t1 < T1 t2 > T1 t3 < T1

Less than

Between

Out of Range

Trigger

Time out

Determination time: T1

Event

t2 t3

t1 < T1 t2 > T1 t3 < T1

Trigger

Determination time: T1

Trigger

Event

t2 t3

T1 < t1 < T2 T2 < t2 t3 < T1

Trigger

Determination time: T1, T2

Event

t2 t3

T1 < t1 < T2 T2 < t2 t3 < T1

Trigger

Determination time: T1, T2

Trigger

Event

t2 t3

Trigger

Determination time: T1

t1 < T1 t2 > T1 t3 < T1

Event 1

Determination time

Trigger

Event 2

Determination time

Starts again from here

When event 2 occurs during the time interval, detection starts again from the next occurrence of event 1.

More than

2.4 Triggers

Event Interval trigger

Taking the trigger condition, excluding Edge OR trigger and TV trigger, as an event, the trigger is activated when the event period, or the interval between two events meets preset time conditions. The time condition is the same as the time condition for the Width trigger.

• Event Cycle

When the event period is within the specified time range

• Event Delay When the time interval between event 1 occurring and the first occurrence of event 2

meets the specified time condition. If the condition is not met, the decision is restarted the next time event 1 is met.

The following shows More than as an example.

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• Event Sequence

Event 1

Determination Time

Event 2

Trigger

Trigger does not activate

More than

When the time interval between event 1 occurring and the first occurrence of event

2 meets the specified time condition. If the condition is not met, the DL9000 ignores event 2 that occurred and activates a trigger on event 2 that occurs while the specified time conditions are met.

The following shows More than as an example.

Trigger Mode ►For the procedure, see section 6.1

Sets the conditions for updating the displayed waveforms. The following five trigger modes are available.

Auto Mode

If a trigger is not activated within a specified time (approximately 100 ms, referred to as the timeout time), the displayed waveforms are automatically updated.

2.4 Triggers

Explanation of Functions

Auto Level Mode

The displayed waveforms are updated in the same way as in auto mode. In the case of an Edge trigger, if the trigger is not activated when the timeout time has elapsed, the amplitude of the trigger source is detected, and the trigger level is automatically updated to the center value of the amplitude.

Normal Mode

The displayed waveforms are updated only when the trigger condition holds. The displayed waveforms are not updated if a trigger does not occur.

Single Mode

When the trigger condition holds, the displayed waveforms are updated once only, and signal acquisition is stopped. This mode is useful when you are observing a single-shot signal.

N Single Mode

The DL9000 acquires signals to different memory areas each time the trigger condition is met for the specified number of counts. Then, the DL9000 stops acquisition and displays the waveform of all acquired signals.

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2.4 Triggers

Trigger Position ►For the procedure, see section 6.2

After signal acquisition is started, the DL9000 triggers on the specified trigger condition and displays the waveform of the acquired signal. When the trigger delay described in the next item is set to 0 s, the trigger position coincides with the point at which the trigger condition becomes true. By moving the trigger position on the screen, the display ratio of the signal data (“pre-” data) before the trigger point which has been captured to acquisition memory (the pre-trigger part), and data (“post-” data) after the trigger point (the post-trigger part) can be changed.

Trigger Delay ►For the procedure, see section 6.3

The DL9000 normally displays the waveform before and after the trigger point. You can set a trigger delay so that the DL9000 displays the waveform of the signal acquired the specified time after the trigger or the specified number of edges after the trigger. By time: S First Edge after time: After the set time has elapse from the trigger occurring, delay until

Edge Count: After the trigger occurs, delay until the specified edge has been

a delay time after the trigger occurs. The delay is from 0 to 10 s.

the specified edge is detected. The set time is from 0 to 10 s.

detected a certain number of times.

Trigger Hold-off ►For the procedure, see section 6.4

The trigger hold-off function temporarily stops detection of the next trigger once a trigger has been activated. This function is useful when observing a pulse train signal, such as a PCM code or when using the history memory function described later (see page 2-20) and you want to change the signal acquisition period.

Trigger Coupling ►For the procedure, see section 6.5

As with the input signal to be measured, you can change the input coupling for the trigger source. Select the input coupling that is suitable for the trigger source signal. The following two types of input coupling are available for the trigger source signal. DC Select this setting when using the source as is with no processing of the signal. AC Select this setting when using the signal with the DC components removed for the trigger source.

HF Rejection ►For the procedure, see section 6.5

Turn HF rejection ON to eliminate high frequency components above 15 kHz or 20 MHz from the trigger source. This prevents triggers from being activated at unexpected points due to the effect of high frequency noise.

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Trigger Hysteresis ►For the procedure, see section 6.5

If there is insufficient trigger level width and noise is present in the trigger source, the trigger point fluctuates each time a trigger is activated. This causes the displayed waveforms to be unstable. Again, even with a slope of the polarity opposite to that specified, noise near the threshold value can cause the trigger to be activated. To prevent this from happening, a certain width (hysteresis) is assigned to the specified trigger level. The DL9000 provides a selection between hysteresis). When trigger point due to noise can be reduced, giving a more stable waveform display. However, this setting can make the trigger point less precise, reducing the trigger sensitivity, so that a trigger source of low amplitude may fail to activate. With a stable signal free of noise, or a low amplitude trigger signal, set the hysteresis to

is selected, the hysteresis is increased, and fluctuation in the

(narrow hysteresis) and (wide

Window Comparator ►For the procedure, see section 6.5

This determines whether a trigger condition based on a waveform rising edge or falling edge, or High/Low, or a Qualify or State condition falls within (IN) or outside (OUT) a specified range (Window). The Window comparator can be enabled or disabled for each channel separately. The trigger condition changes according to the Window comparator setting for the channel set for a trigger source and so on. For example, if the source channel of an Edge trigger has the Window comparator enabled, the trigger can be activated according as the source channel waveform is within or outside the specified area.

2.4 Triggers

Explanation of Functions

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2.5 Acquisition Conditions

Envelope curve

An = {(N – 1)An–1 + Xn}

1 N

Exponential averaging

(When trigger mode is set to Auto, Auto Level, or Normal)

N =

Simple average (When trigger mode is set to Single or N Single)

n=1

Σ Xn

An: Xn: N:

averaged value nth measured value Attenuation constant (2 to 1024, 2n steps)

Xn:N:nth measured value

Acquisition count (2 to 65536 2n steps)

Acquisition Mode ►For the procedure, see section 7.1

When storing sampled data in the acquisition memory (see “Signal Flow” in section

2.1), it is possible to perform processing on data and display waveforms based on the processed data. The following three types of data processing are available.

Normal Mode

In this mode, sampled data is stored in the acquisition memory without special processing.

Envelope Mode

In normal mode or averaging mode, the sample rate (the number of times data is acquired per second in the acquisition memory) drops if T/div is increased (see Appendix

1). However, in envelope mode, the maximum and minimum values are determined from the data sampled at 2.5 GS/s at time interval one half that of the sampling period (inverse of the sample rate) of normal mode regardless of the interleave mode setting (ON or OFF). The maximum and minimum values are stored as pairs in the acquisition memory. Envelope mode is useful when you want to avoid aliasing (see next page), since the sample rate remains high irrespective of the time axis setting. It is also useful when you want to detect glitches (narrow pulse signals) or display an envelope of a modulating signal.

Averaging Mode

In the averaging mode, signals are acquired repeatedly to obtain the average of sampled data at the same time point (the same time in relation to the trigger point). The DL9000 takes the exponential or simple average of the sampled data and writes the results to the acquisition memory. The averaged data is then used to generate the display. When the trigger mode is auto mode, auto level mode, or normal mode then exponential averaging is used, and in the single mode, simple averaging. This mode is useful such as when eliminating random noise superimposed on the signal. For exponential averaging, you set the attenuation constant. For simple averaging, you set the sampling data acquisition count.

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High Resolution Mode ►For the procedure, see section 7.2

Aliased signal Input signal Sampling point

Normally, this unit takes digital values from the 8-bit A/D converter, applies specified processing, and then stores 8-bit values in primary memory. On the other hand, the resolution of the A/D converter can be improved equivalently by placing a bandwidth limit on the input signal. In high resolution mode, the effective number of bits per data value in the primary memory is expanded to 12 bits, and data is stored by maintaining the improved resolution through bandwidth limiting.

Record Length ►For the procedure, see section 7.3

The term record length refers to the number of data points acquired per channel in the acquisition memory. The record lengths that can be set are: 2.5 k words (2500 points),

6.25 k words, 12.5 k words, 25 k words, 62.5 k words, 125 k words, 250 k words, 625 k words, 1.25 M words, 2.5 M words, and 6.25 M words (the maximum record length that can be set varies from model to model). Basically, if you change the time axis setting, the sample rate is changed to maintain the set record length at the same value. However, in some cases the record length is changed as a result, for example, of a changed time axis setting (see Appendix 1).

Sampling Mode ►For the procedure, see sections 7.4 to 7.6

Depending on the time axis setting, you can switch the mode for sampling the input signal (sampling mode). The time axis ranges that allow the sampling mode to be changed vary depending on the acquisition mode and other settings. For details, see Appendix 1.

2.5 Acquisition Conditions

Explanation of Functions

Realtime sampling mode

Changing the time axis setting causes the sample rate to change. Data can be sampled at up to 5 GS/s (2.5 GS/s when interleave mode is OFF). The input signal is sampled sequentially, and the data is stored in the acquisition memory. In this mode, according to the sampling theorem*, the signal can only be correctly displayed up to a frequency which is one-half of the sample rate (samples per second, or S/s). Therefore, an appropriate sample rate for a signal is such that the frequency of the signal is comparatively lower.

* If the sample rate is relatively low compared with the input signal frequency, then higher

harmonic content of the signal will be lost. In this case, according to the Nyquist sampling theorem, the high frequency components may be transformed into low frequencies, by the process known as aliasing. By setting the mode to envelope signal acquisition, aliasing can be avoided.

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2.5 Acquisition Conditions

Repetitive Sampling Mode

In repetitive sampling mode, you can set a time axis that exceeds the maximum sample rate of 5 GS/s (2.5 GS/s if the interleave mode is OFF). In this mode, one waveform is created from several cycles of a repeating signal. This is equivalent to sampling the signal at a higher sample rate than the actual sample rate. The DL9000 enables an apparent maximum sample rate up to 2.5 TS/s. If repetitive sampling mode is OFF and the sample rate exceeds the maximum selectable sample rate due to the relationship between the time axis and display record length, the display record length is reduced according to the time axis setting and sample rate. There are two types of repetitive sampling. One is sequential sampling in which the data is sampled by intentionally offsetting the sampling points by a certain time with respect to the trigger point. The other is random sampling in which the data that is offset randomly from the trigger point is sampled and resorted with respect to the trigger point. The DL9000 employs random sampling which enables the signal before the trigger point (trigger position, see section 2.4) to be observed.

Interleave Mode

The sample rate in realtime sampling mode can be increased to 5 GS/s by sampling a single signal using two A/D converters with offset phases. For the relation between the interleave mode and time axis, record length, and sample rate, see Appendix 1.

Interpolation

The practical sample rate can be increased up to 2.5 TS/s by interpolating the actual sampled data 1000 times (2000 times during high resolution mode).

Action On Trigger ►For the procedure, see section 7.8

Conditions can be determined at the zone through which the result of the automated measurement of waveform parameters or waveform passes. If the conditions are met, a given action can be executed at the same time as the signal acquisition. The action to be carried out can be selected from a number of possibilities, including sounding an alarm, saving measurement data or a screen image, or printing a screen image, or sending E-mail. The action on trigger operation is carried out with Exec on the menu screen. It cannot be carried out with the START/STOP key. Additionally, when the action on trigger is carried out, the trigger mode becomes the normal mode.

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Holds waveform data of the last 1000 triggers

Select # 0

Select

–25

Current display waveform (Select # = 0)

Displays past waveforms (Set the Select # between 0 and –999)

2.5 Acquisition Conditions

GO/NO-GO Determination ►For the procedure, see sections 7.9 to 7.16

This is used as a criteria for the action-on-trigger. This function determines whether the acquired signal meets the criteria (GO) or not (NO-GO). The DL9000 can transmit GO/ NO-GO results through the rear panel GO/NO-GO I/O terminal. The GO/NO-GO result can be used to trigger an action-on-trigger. This feature is useful for signal testing on electronic device production lines and tracking down abnormal phenomena. The following eight GO/NO-GO types are available.

• W

aveform zone on the screen

• Rectangular zone on the screen

•

Polygonal zone on the screen

Creating a polygon image file on a PC using the appropriate s

oftware.

• Range of a waveform parameter

•

Rrange of a periodic statistics parameter

• Range of an FFT

parameter

• Range of an XY waveform parameter

• Range of a telecom test item

History Memory ►For the procedure, see chapter 11

When signals are being measured, the signal stored in the acquisition memory as a result of a trigger being activated is displayed as waveforms on the DL9000 screen, and can be viewed. When triggers are successively activated and signals are acquired, it is impossible to stop the measurement in time when an abnormal waveform appears (newer waveforms appear on the screen). Normally, abnormal waveforms in the past cannot be displayed. By using the history memory function, the past signal data (history waveforms including the current displayed waveform) stored in the acquisition memory can be displayed when signal acquisition is stopped. You can select the display mode from below.

• Display any single waveform

• Display all waveforms with a color or intensity gradation

• Display all waveforms with no gradation, highlighting a single s

• Displaying the simple arithmetic mean of all waveforms ou can also automatically replay from the oldest waveform to the newest waveform, and

Y vice versa. The number of waveforms N that can be acquired and held as history waveforms varies from 1 to 2000 depending on the record length setting. If the number of waveforms N that can be acquired and held is exceeded, the oldest history waveform is cleared. The waveform currently displayed on the screen (newest waveform) is counted as the 1st waveform, and up to N-1 waveforms in the past can be displayed. The following figure indicates an example when N = 1000.

pecified waveform

Explanation of Functions

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2.5 Acquisition Conditions

History Search

When signal acquisition is stopped, you can search for history waveforms that meet specified conditions.

Zone Search ►For the procedure, see sections 11.2 to 11.4

You can search for history waveforms that pass or do not pass a specified search zone. There are three types of search zone, as follows.

• Waveform Zone Set a zone on the screen using a waveform.

• Rectangular zone Set a rectangular zone on the screen.

• Polygonal zone Load a polygonal zone created on a computer

Waveform Parameter Search ►For the procedure, see sections 11.5 to

11.7

From the history waveforms, you can search for waveform meeting or not meeting specified search parameter conditions. There are three types of search parameter, as follows.

• Waveform Parameter Search by values of the automated measurement of waveform

• FFT Parameter Search for FFT waveform marker measurement values, maximum values in a

specified sector

• XY Waveform Measurement Value Search for a computation value using the area of an XY

, or computation values using FFT measurement values.

parameters.

waveform or an area.

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2.6 Display

<Main>

<Z1>

<Z2>

<Main>

<Main>

¢¡

<Z1>

<Z2>

<Main>

<Main>

<Z1>

<Z2>

¢¡

<Main>

<Z1>

<Z2>

<Z1>

<Z2>

¢¡

Waveform Zooming ►For the procedure, see section 8.1

Displayed waveforms can be enlarged in both the time axis and the voltage axis directions. This function is useful when the signal acquisition time is set long and you wish to observe a particular section of the waveform closely. The zoom position can be set in grid div units. The zoom waveform can be displayed at up to two positions simultaneously (dual zoom). The display combinations of the normal waveform, zoom waveform, and analysis screen windows are as follows, with the normal waveform area identified as Main, the zoom waveform areas as Z1 and Z2, and the analysis areas as A1 and A2.

Explanation of Functions

IM 701310-01E

When the Main (normal waveform) and Zoom 1 or Zoom 2 waveforms are displayed simultaneously, a zoom box appears in the normal waveform area to indicate the zoom position. The center of the zoom is the center of this box. For details of display examples, see section 1.3, “Screen Displaying Zoom Waveforms.” You can select the display format of the zoom waveform area, and whether a trace is on or off, independently of the Main waveform area. When zooming in the voltage axis direction, you can select a waveform to enlarge, and set it to 1.05 to 10 times normal size. When zooming in the time axis direction, you can enlarge until there are ten data points in the zoom waveform area. You can also set a point meeting a set trigger condition as the zoom center, or automatically move the zoom center.

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2.6 Display

Display Format ►For the procedure, see section 8.2

Splitting the Screen

The screen can be split evenly so that input waveforms and computed waveforms can be easily viewed. The screen can be divided in the following ways: Single (no split), Dual (two ways), Triad (three ways), Quad (four ways)

Waveform Assignment

You can assign channels to the divided windows.

• Auto Waveforms whose display is turned ON are assigned in order from the top.

•

Manual

Regardless of whether the display is ON or OFF, waveforms can be assigned freely to

each window.

Display Interpolation ►For the procedure, see section 8.3

If a given size of data is not available in 10 divisions along the time axis, the data can be interpolated to display the waveform.

Sine Interpolation

Interpolated data is created with the function (sin x)/x, to interpolate between two points with a sine wave. Sine interpolation is suitable for observing sine waves or similar waves.

Linear Interpolation

Linearly interpolates between two points.

Pulse Interpolation

Interpolates between two points in a step pattern.

Interpolation OFF

Displays discrete dots without performing interpolation.

Accumulated Display ►For the procedure, see section 7.7

The display time of old waveforms can be set longer than the waveform update period, so that newer waveforms appear overlapped (accumulated) on older waveforms. There are two modes, as follows:

• Count The specified number of waveforms are superimposed.

according to the data frequency

• Time Waveforms for the specified time are superimposed.

data to new.

For each of these modes, there are two types of display

• Inten Display using dif

Color

• Display with a color gradation. The accumulated display is useful when observing noise, jitter, and transient phenomena in waveforms. The accumulated waveforms can also be saved.

ferent intensity levels.

A gradation is applied from older

, as follows:

A gradation is applied

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Displaying Signal Labels ►For the procedure, see section 8.6

A label of up to eight characters can be assigned to each signal and displayed.

2.6 Display

Snapshot and Snap Clear ►For the procedure, see section 8.7

By using the snapshot function, you can temporarily hold the waveform (snapshot waveform) that would be cleared when the screen is updated on the screen. The snapshot waveform is displayed in white, allowing for easy comparison against the updated waveform. The snapshot waveform can be printed as screen image data, but cannot be used for cursor measurement, automated measurement of waveform parameters, zoom, and computation functions.

Snap Clear Press the SHIFT key, then press the SNAP SHOT key, to clear the snapshot waveform.

Translucent Display ►For the procedure, see section 8.8►For the procedure, see section 8.8

Configuration dialog boxes are displayed translucently, so the contents underneath it can be seen.

Scale Value Display ►For the procedure, see section 5.12

The upper and lower limits (scale values) of the vertical and horizontal axes of each waveform can be displayed.

Explanation of Functions

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2.7 Computation

Prescaling and Rescaling ►For the procedure, see sections 9.2 to 9.7

Prescaling linearly scales the source waveform before carrying out computation. The computation uses the scaled values. Rescaling linearly scales the results of the computation.

Computed Waveform Display

By setting a computation equation for each of CH1 to CH4, and M1 to M4, a maximum of eight computed waveforms can be displayed.

Through (Linear Scaling) ►For the procedure, see section 9.2

By setting Through, linear scaling only can be carried out.

Addition, Subtraction, and Multiplication ►For the procedure, see section 9.3

Addition, subtraction, and multiplication can be applied to any of CH1 to CH4, using the input waveform of the channel itself together with the waveform of any of CH1 to CH4 and REF1 to REF4 as operands, and can be applied to M1 to M4, using any two waveforms of CH1 to CH4 and REF1 to REF4 as operands. The computation result is used as the waveform (computed waveform) for CH1 to CH4 or M1 to M4. The addition (+) and subtraction (–) functions are convenient for comparison with a reference signal, checking signal logic, or phase comparison, and multiplication (×) can be used to check the power waveform when inputting a voltage signal and current signal.

Integration ►For the procedure, see section 9.4

This integrates the selected waveform. Taking the specified integration start point as 0, the entire region is calculated, counting up toward the newest data, and counting down toward the oldest data. For CH1 to CH4 the computation applies to the input waveform of the channel itself, and for M1 to M4 applies to any of CH1 to CH4 and REF1 to REF4.

Phase Shift ►For the procedure, see section 9.5

A waveform can be displayed phase-shifted. To advance the phase, set a positive value, and to delay the phase, set a negative value.

IIR Filter ►For the procedure, see section 9.6

High-frequency noise can be filtered out (with a low-pass filter), or low-frequency noise can be filtered out (with a high-pass filter). You can select a first-order filter or a second-order filter. When a second-order filter is selected, there is no phase delay.

Smoothing ►For the procedure, see section 9.7

A waveform can be displayed smoothed, by removing noise with a sliding average.

Edge Count ►For the procedure, see section 9.8

This counts edges of a selected waveform. Taking the specified count start point as 0, the entire region is calculated, counting up toward the newest data, and counting down toward the oldest data. For CH1 to CH4 the computation applies to the input waveform of the channel itself, and for M1 to M4 applies to any of CH1 to CH4 and REF1 to REF4.

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0 0

1 0

1 1

0 1

A phase

B phase

–1

Direction of change

2.7 Computation

Rotary Count ►For the procedure, see section 9.9

Phase changes between phase A (Source 1) and phase B (Source 2) are counted up or down, taking a rise above a specified level as 1, and a fall below the level as 0. Taking the specified integration start point as 0, the entire region is calculated, counting up toward the newest data, and counting down toward the oldest data. For CH1 to CH4 the computation applies to the input waveform of the channel itself, and for M1 to M4 applies to any of CH1 to CH4 and REF1 to REF4.

Scale Conversion of a Computed Waveform (Ranging) ►For the procedure, see section 9.1

When displaying a computed waveform, normally auto scaling is carried out, but manual scaling can also be selected. Auto scaling automatically determines from the computed waveform the center line level (Center) in the vertical axis direction of the screen area and the sensitivity to display the computed waveform. Manual scaling allows both Center and Sensitivity to be set as required. 1 For a voltage waveform this is a voltage value. 2 For a voltage waveform, this is a voltage value per 1 div

(Sensitivity),

Explanation of Functions

User Defined Math (Option) ►For the procedure, see section 9.10

Available for the DL9000 with the /G4 or /G2 option. You can define equations arbitrarily by combining the following functions.

Operators

+, -, *, /, ABS (absolute value), SQRT (square root), LOG, LN (natural logarithm), EXP (exponents), - (inverse), P2 (squares), DELAY (phase shift), BIN (binary), SIN (sine), ASIN (arcsine), COS (cosine), TAN (tangent), ATAN (arctangent), DIFF (differential), INTEG (integral),

Constants

Napier’sconstant(e),PI(π),samplerate(fs),Exp(exponentdisplay),waveform

parameters (measure item), constants (K1-K4)

Waveforms

CH1 to CH4, REF1 to REF4

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2.8 Analyzing and Searching

Cursor Measurements ►For the procedure, see section 10.1

Cursors can be placed on the displayed waveform from signal data held in acquisition memory (within the range of the display record length - see Appendix 1), and various measurement values at the intersection of the cursor and waveform can be displayed. There are six types of cursor.

Horizontal Cursors

Two broken lines (horizontal cursors) are displayed parallel to the horizontal axis, and the Y-axis values at the cursor positions can be measured. The level difference between cursors can also be measured. A computation formula using the cursor measurement values can also be set, and the result displayed.

Vertical Cursors

Two broken lines (vertical cursors) are displayed parallel to the vertical axis, and the times from the trigger position to each vertical cursor, the time difference between the vertical cursors, and the reciprocal of the time difference can be measured. A computation formula using the cursor measurement values can also be set, and the result displayed.

H&V cursors

The horizontal cursors and vertical cursors are displayed simultaneously.

VT cursor

A broken line (VT cursor) is displayed on the vertical axis, and the time from the trigger position to the VT cursor, and the VT cursor position measurement value are displayed. A computation formula using the cursor measurement values can also be set, and the result displayed.

Marker Cursors

Four markers are displayed on the selected waveform. The level at each marker, the time from the trigger position, and the level difference and time difference between markers can be measured. A computation formula using the marker measurement values can also be set, and the result displayed.

Serial cursors

A broken line (serial cursor) is displayed on the vertical axis, showing a two-valued function of the waveform from the cursor position, according to the bitrate, bit length, and threshold settings.

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Automated Measurement of Waveform Parameters

Automated Measurement of Waveform Parameters ►For the procedure,

see section 10.2

Automated measurement can be performed on various measurement parameters of the displayed waveform stored in the acquisition memory. Up to a maximum of 100,000 automatic measurement results can be saved in a file. There are 27 different measurement items. A maximum of 16 items can be displayed from the selected items for all channels together. A computation formula using the automatic measurement values can also be set, and the result displayed.

Statistical Processing ►For the procedure, see section 10.3

Statistical processing can be performed on the automated measurement values described above. The following five statistics can be determined on the two measured values of automated measurement parameters.

• Maximum value (Max)

• Minimum value (Min)

• Mean value (Mean)

• Standarddeviation(σ)

• Count of measurement values subjected to statistics processin

The following three statistical processing methods are available.

•

Normal Statistical Processing

Statistical processing is carried out while acquiring waveforms, on the specified

number of waveforms from the most recently captured. If waveform acquisition is stopped, then restarted, the statistical processing from before stopping is continued. Carrying out a Restart in the menus resets the statistical processing up to that point. It is also possible to set the number of data values used in statistical processing.

•

Statistical Processing Over One Cycle of Measurement or Within Measurement Range

In the displayed waveforms, the period is found sequentially fr

and data within that period is used for measurement of the selected automatic

asurement item, then statistical processing is carried out. The method of finding the

me period is the same as for Period in the normal waveform parameters.

• Statistical Processing of History Waveforms

Automated measurement is performed on the history waveform

and statistical processing is performed. The statistical processing is carried out from the oldest waveforms first.

2.8 Analyzing and Searching

Explanation of Functions

g (Cnt)

om the oldest data,

s in the selected range

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3σcrossing2

3σcrossing1

Eye Width

40%

20%

40%

Vtop

Vbase

3σbase 3σtop

Eye Height

T crossing2

T crossing1

V crossing

2.8 Analyzing and Searching

Telecom Test ►For the procedure, see section 10.4

There are two available tests. The mask test is used to analyze the communication signal. The other test automatically measures the waveform parameters of the eye pattern. Measurement is performed on the accumulated waveform when the mode is set to Count. In the mask test, a mask pattern created with the software supplied free of charge by Yokogawa is read into the DL9000, and the waveforms passing through the mask are counted. In the eye pattern test, the following items are measured in the eye pattern.

Vtop Vertical histogram top peak average voltage. Vbase Vertical histogram bottom peak average voltage.

top Vertical histogram top peak standard deviation.

base Vertical histogram bottom peak standard deviation.

Tcrossing1 First crossing point average time value. Tcrossing2 Second crossing point average time value. Vcrossing Voltage at the point of intersection of the rising edge and falling edge. Crossing % Level of the point of intersection of the rising edge and falling edge

of the eye pattern as a proportion of the difference between Vtop and

Vbase. Eye Height Height of the opening in the eye diagram. Eye Width Width of the opening in the eye diagram. Q Factor Quality factor for the eye diagram showing the height of the eye

pattern opening, with respect to the noise at both high and low

voltage levels. Jitter Magnitude of the fluctuation in the time position of the crossing point. Duty Cycle Distortion % The percentage of full bit width of time difference between the

intermediate point of the falling edge and the intermediate point of the

rising edge at the intermediate threshold value. Ext Rate dB Extinction rate dB. Rise Rise time from the specified lower to upper threshold level. Fall Fall time from the specified upper to lower threshold level.

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The following formulas are used to calculate each item.

Vtop – Vbase

T crossing2 – Tcrossing1

Crossing% = 100

Duty Cycle Distortion% = 100

EyeHeight = (Vtop - 3

top) – (Vbase + 3σbase)

EyeWidth = (T crossing2 – 3σcrossing2) – (Tcrossing1 + 3σcrossing1)

Jitter =

σ crossing1

QFactor =

ExtRatedB = 10log

V crossing – V base

Vtop – Vbase

Trising50% – Tfalling50%

top + σbase

Vtop – Vdark

Vbase – Vdark

Phase angle 0°

Phase angle 45°

Phase angle 90°

Frequency ratio

(X : Y)

1 : 1 1 : 2 1 : 3

Lissajous waveform

X-Y Analysis ►For the procedure, see section 10.6

With one signal level applied to the X-axis (horizontal axis), and a second signal level applied to the Y-axis (vertical axis), the phase relationship between the two input signals can be observed. Simultaneous observation of X-Y waveforms and normal T-Y waveforms (waveform display using time axis and level) is possible. It is also possible to specify the ranges for X-Y analysis, or carry out analysis depending on the specified signal level. The X-Y analysis results can be used for cursor measurement, and also the area can be computed. For details of the computation of area, see Appendix 2, “Waveform Area Computation.” You can use the X-Y waveform display function to measure the phase angle between two sine wave signals. For example, an X-Y display of two sine waves produces a so-called Lissajous figure, from which the phase angle can be read.

2.8 Analyzing and Searching

Explanation of Functions

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Sine wave

Window Integral Power spectrum

Rectangular

window

Hanning window

Rectangular window: Hanning window: Flattop window:

W(t)=u(t)–u(t–T) U(t) : Step function W(t)=0.5–0.5cos(2P W(t)={0.54–0.46 cos(2P)}

Flattop window

sin{2P(1–2t/T)}

2P(1–2t/T)

( )

10 log

+ I

R: Real Part, I: Imaginary Part Reference value (0 dB) of the logarithmic magnitude (Log mag): 1 Vrms

AC component

( )

10 log

+ I

DC component

2.8 Analyzing and Searching

FFT Analysis ►For the procedure, see section 10.7

This executes a Fast Fourier Transform (FFT), and displays the power spectrum. You can select the trace for the real part or the trace for the imaginary part. If the trace for the imaginary part is not set, the real part only is used for calculation, and negative frequencies are not displayed. You can select the time window from Rectangular, Hanning, and Flattop. The rectangular window is best suited to transient signals, such as impulse waves, which attenuate completely within the time window. The Hanning and flattop windows allow continuity of the signal by gradually attenuating the parts of the signal located near the ends of the time window down to the zero level. Hence, it is best suited to continuous signals. With the Hanning window, the frequency resolution is higher than that of the flattop window. However, the flattop window has a higher spectral level accuracy. When the waveform being analyzed is a continuous signal, select the whichever of the Hanning window and flattop window is more suitable for the application. The number of points in the FFT can be selected from 2.5 k, 6.25 k, 12.5 k, 25 k, 62.5 k, 125 k, and 250 k. The FFT range is specified in the waveform area (Main/Zoom 1/Zoom

2). If the waveform area record length is more than the number of FFT points, the data is downsampled for computation. Marker measurement or peak value measurement can be used on the FFT waveform.

FFT Function

Given that the complex function resulting after the FFT is G = R + jI, the power spectrum can be expressed as follows:

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2.8 Analyzing and Searching

Waveform Parameter Histogram, Trend and List Displays ►For the procedure, see section 10.8

You can display a selected waveform parameter as a histogram or trend. In the histogram display, the average value, standard deviation, peak value, etc of a waveform parameter can be measured. In the trend display, time series changes in the waveform parameter can be observed, and a cursor displayed to measure the level. Results of automated measurement of waveform parameters can be displayed in a list.

Accumulated Histogram Display ►For the procedure, see section 10.9

For a repeatedly captured signal, a frequency distribution histogram (Vertical, Horizontal) is shown for the specified region. On the histogram, the average value, standard deviation, maximum value, minimum value, peak value, intermediate value, etc can be measured, and with the cursors, X-axis values or times can be measured. Using these measurement values, further calculation can be carried out. This is useful for measuring jitter.

Signal Searching ►For the procedure, see sections 10.10 to 10.12

You can perform searches on analog signals, or serial bus signals that the DL9000 has acquired. You can expand a point that is found or select a point if many points are found.

Explanation of Functions

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2.9 Communications

Communication

interface

DL9000

Ethernet

DL9000

Ethernet

DL9000

Command-Based Communications (USB/Ethernet) ►For the procedure, refer to

the CD Communications Interface User’s Manual

A USB interface is provided as standard equipment, and an Ethernet interface is available as an option. Using communication commands, you can output measurement data to a computer for data analysis or control the DL9000 using an external controller to carry out waveform measurements.

Saving and Recalling Data on a Network Drive ►For the procedure, see section

15.3

In the same way as on the internal storage media, measurement and setting data can be saved to or recalled from a computer on the network, and screen image data can also be saved.

Accessing the DL9000 from a Computer ►For the procedure, see sections 15.6

and 15.7

By accessing the DL9000 from a computer on the network, you can extract files from the DL9000 internal storage media (FTP server function). Also, you can display the instrument’s screen on a PC for monitoring (Web server function).

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2.10 Other Useful Functions

USB keyboard

USB connection

DL9000

USB mouse

DL9000

Entering Numeric and Text Data from a USB Keyboard ►For the procedure, see

section 4.3

A USB keyboard can be connected, and used for entering file names and comments. Since the functions of the keys on the DL9000 front panel are also assigned to keys on the keyboard, the keyboard can be used in the same way as the keys on the DL9000 itself.

Operating the DL9000 Using a USB Mouse ►For the procedure, see section 4.3

You can use a USB mouse to operate the DL9000 as you would using the front panel keys. In addition, you can point to a desired item on a menu and click the item. This is analogous to pressing a soft key corresponding to a menu and pressing the SET key.

Explanation of Functions

Initialization ►For the procedure, see section 4.4

You can return all settings to their default values. However, some of the settings are not initialized (see section 4.4). To initialize all settings excluding the date/time setting (display ON/OFF is initialized) to their factory defaults, turn ON the power while holding down the RESET key. Release the RESET key after a beep sounds.

Auto Setup ►For the procedure, see section 4.5

This function automatically sets the voltage axis, time axis, trigger settings, and other settings to suit the input signal. This is useful when the characteristics of the input signal are unknown. The auto setup function may not work depending on the input signal.

Serial Bus Auto Setup ►For the procedure, refer to the Serial Bus Signal Analysis Function User’s Manual

This feature automatically configures trigger, decode, and search settings based on a serial bus signal. The auto setup feature may not work properly for some input signals. The /F5, /F7, or /F8 option is needed to use this feature., or /F8 option is needed to use this feature.

Screen Image Printing ►For the procedure, see chapter 12 and section 15.8

Screen images can be printed on the built-in printer (option), USB printer, or network printer (when the Ethernet interface option is installed).

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PC card

MO/Hard disk drive, etc.

DL9000

2.10 Other Useful Functions

Saving and Loading Data from a Storage Medium ►For the procedure, see

chapter 13

The DL9000 allows various data to be stored to and loaded from the following storage media.

• PC card (standard equipment)

• External USB device (USB memory/MO disk drive/hard disk d

• Network drive (when the Ethernet interface option is installed)

rive etc.)

Saving and Loading Setting Data, Measurement Data, and Waveforms ►For the

procedure, see sections 13.4 to 13.6

Setup data, measurement data, and snapshot/accumulated waveforms can be saved to or loaded from a selected storage medium.

Saving Screen Image Data ►For the procedure, see section 13.8

Screen image data can be stored to a selected storage medium. The formats that can be saved are BMP, PNG, and JPEG and these can be used to incorporate the screen image data in a document using DTP software.

Saving Analysis Results ►For the procedure, see section 13.9

The values from automated measurement of waveform parameters, accum histogram, FFT analysis, and analysis results of serial bus signal can be saved to a selected storage medium.

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Chapter 3 Making Preparations for Measurements

3.1 Handling Precautions

Safety Precautions

If you are using this instrument for the first time, make sure to thoroughly read the safety precautions given on pages vi and vii.

Do Not Remove the Case

Do not remove the case from the instrument. Some sections inside the instrument have high voltages and are extremely dangerous. For internal inspections or adjustments, contact your dealer.

Unplug If Abnormal Behavior Occurs

If you notice smoke or unusual odors coming from the instrument, immediately turn OFF the power and unplug the power cord. If such an irregularity occurs, contact your dealer.

Do Not Damage the Power Cord

Nothing should be placed on the power cord. The cord should be kept away from any heat sources. When unplugging the power cord from the outlet, never pull by the cord itself. Always hold and pull by the plug. If the power cord is damaged, contact your dealer for replacement. Refer to page iv for the part number when placing an order.

Making Preparations for Measurements

General Handling Precautions

Do Not Place Objects on Top of the Instrument

Never place other instruments or objects containing water on top of the instrument, otherwise a breakdown may occur.

Do Not Apply Shock to the Input Section

Shocks to the input connectors or probes may turn into electrical noise and enter the instrument via the signal lines.

Do Not Damage the LCD

Since the LCD screen is very vulnerable and can be easily scratched, do not allow any sharp objects near it. Also it should not be exposed to vibrations and shocks.

Unplug during Extended Non-Use

Unplug the power cord from the outlet.

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POWER

COMP

ESC

SNAP CLEAR

SNAP

RESET

SET

MEASURE

ANA

LAY

CURSOR

TELECOM

TEST

PARAM

VERTICAL

WINDOW 1

WINDOW 2

FORM

ACCUM

CLEAR

ACCUM

POSITION

FINE

PUSH

FINE

PUSH

SCALE

INTENSITY

/20

150

CLEAR

EXP

E F

FILE

UTILITY

FILE

SYSTEM

SHIFT

SETUP

HELP

HISTORY

CLEAR

HISTORY

ZOOM

DISP

ZOOM

DISP

ZOOM

MAG

ACQ

COUNT/ACTION

ACQUIRE /HOR IZO NTAL

ACQ

START/STOP

SAMPLING/ LENGTH

T/DIV

POSITION/ DELAY

TRIG'D

TRIG MODE/ HOLD OFF

TRIGGER

EDGE/

STATE

WIDTH

SOURCE

LEVEL/ COUPLING

EVENT INTERVAL

ENHANCED

Vrms

CATI

Vrms,

Vpk

DL9240L

10GS/s 1.5GH z

DIGITAL OSCILLOSCOPE

ESC

RESET

SET

CLEAR

EXP

FILE

UTILITY

FILE

SYSTEM

SHIFT

SETUP

HELP

HISTORY

CLEAR

HISTORY

ACQ

COUNT/ACTION

ZOOM

DISP

ZOOM

MAG

ACQUIRE/HORIZONTAL

ACQ

START/STOP

SAMPLING/

LENGTH

POSITION/

DELAY

T/DIV

TRIGGER

EDGE/

STATE

ENHANCED

WIDTH

EVENT

INTERVAL

SOURCE

INTENSITY

ACCUM

FORM

ACCUM

ANALYS IS/ XY

WINDOW

CURSOR

TELECOM

TEST

PARAM

VERTIC AL

POSITION

TRIG'D

TRIG MODE/ HOLD OFF

PUSH

FINE

PUSH

FINE

SCALE

SNAP

CLEAR

SNAP

POWER

COMP

1 M /20 pF

150

Vrms

CAT

Vrms,10Vpk

LEVEL/

COUPLING

DL9240L

10GS/s

1.5GHz

DIGITAL OSC ILL OSC OPE

DISPLAY

CLEAR

If you turn the handle slightly while pressing this part (the handle attachment), the lock releases. When turning the handle after releasing the lock, make sure not to turn this part.

3.1 Handling Precautions

CAUTION

When Carrying the Instrument

Remove the power cord and connecting cables. Hold the handle to carry the DL9000.

Using the handle

• Do not apply unreasonable force to the handle. This could break the handle.

• When turning the handle, take care not to turn the handle attachment (the blue cover) at the same time, as doing so could damage the handle attachment.

The handle attachment can turn at the same time when unlock

pushed forcefully, or after unlocking the handle when turning the handle while pressing the attachment.

ing the handle if

The instrument's handle is attached at locations 1 and 2 in the figure below

. When changing the position of the handle, press the left and right attachment (the blue cover) and release the lock as in the figure below before moving the handle. When doing so, take care not to turn the handle attachment (the blue cover) at the same time. Turn the handle until it clicks into place.

Cleaning

When cleaning the case or the operation panel, first remove the power cord from the AC outlet. Then, wipe with a dry, soft, clean cloth Do not use chemical such as benzene or

3-2

thinner. These can cause discoloring and deformation.

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3.2 Installing the Instrument

ESC

RESET

SET

CLEAR

EXP

FILE

UTILITY

FILE

SYSTEM

SHIFT

SETUP

HELP

HISTORY

CLEAR

HISTORY

ACQ

COUNT/ACTION

ZOOM

DISP

ZOOM

MAG

ACQUIRE/HORIZONTAL

ACQ

START/STOP

SAMPLING/

LENGTH

POSITION/

DELAY

T/DIV

TRIGGER

EDGE/

STATE

ENHANCED

WIDTH

EVENT

INTERVAL

SOURCE

INTENSITY

ACCUM

FORM

ACCUM

ANALYS IS/ XY

WINDOW

CURSOR

TELECOM

TEST

PARAM

VERTIC AL

POSITION

TRIG'D

TRIG MODE/ HOLD OFF

PUSH

FINE

PUSH

FINE

SCALE

SNAP

CLEAR

SNAP

POWER

COMP

M /20 pF

150

Vrms

CATI

Vrms,10Vpk

LEVEL/ COUPLING

DL9240L

10GS/s

1.5GHz

DIGITAL OSC ILL OSC OPE

DISPLAY

CLEAR

10 cm or more

5 cm or more

ESC

RESET

SET

D E F X

8 9

CLEAR

EXP

FILE UTI LITY

FILE

SYSTEM

SHIFT

SETUP

HELP

HISTORY

CLEAR

HISTORY

ACQ

COUNT/ACTION

ZOOM

DISP1

DISP2

ZOOM1

ZOOM

MAG

ACQUIRE/HORIZONTAL

ACQ

START/STOP

SAMPLING/

LENGTH

POSITION/

DELAY

T/DIV

TRIGGER

EDGE/ STATE

ENHANCED

WIDTH

EVENT

INTERVAL

SOURCE

DISPLAY

INTENSITY

ACCUM

CLEAR

FORM

ACCUM

ANALYSIS/ XY

WINDOW1

WINDOW2

MEASURE

CURSOR

TELECOM TES T

PARAM

VERTICAL

CH2

CH3

CH4

POSITION

TRIG'D

TRIG MODE/

HOLD OFF

PUSH

FINE

PUSH

FINE

SCALE

SNAP

CLEAR

SNAP

POWER

COMP

CH 1 CH 2 CH 3 CH 4

M /20 pF 150

Vrms

CATI50 5

Vrms,10Vpk

LEVEL/

COUPLING

DL9240L

10GS/s

1.5GHz

DIGITAL OSCILLOSCOPE

Installation Conditions

Install the instrument in a place that meets the following conditions.

Flat, Even Surface

Install the instrument with the correct orientation on a stable, horizontal surface. The recording quality of the printer may be hindered when the instrument is placed in an unstable or inclined place.

Well-Ventilated Location

Inlet holes are located on the top and bottom of the instrument. There are also exhaust holes on the right side. To prevent internal overheating, allow for enough space around the instrument (see the figure below) and do not block the inlet and exhaust holes.

CAUTION

If the inlets on the left and bottom side of the instrument, and exhaust holes on the right side are blocked, the temperature of the instrument will rise, and can result in damage.

Making Preparations for Measurements

IM 701310-01E

Including the spaces shown in the drawing above, allow for plenty of space to connect the cables and to open and close the cover of the built-in printer.

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2 rubber feet, left and right

4 rubber feet

3.2 Installing the Instrument

Ambient Temperature and Humidity

Ambient temperature 5 - 40°C Ambient humidity 20 to 80% RH when the printer is not used. (No condensation)

35 to 80% RH when using the printer. (No condensation)

Note

• To ensure high measurement accuracy, operate the instrument in the 23 �5°C temperature range and 55 �10% RH.

• Condensation may occur if the instrument is moved to another place where the ambient temperature is higher, or if the temperature changes rapidly. In such cases, allow the instrument adjust to the new environment for at least an hour before using the instrument.

Do not install the instrument in the following places.

• In direct sunlight or near heat sources.

• Where an excessive amount of soot, steam, dust, or corrosive gas is present.

• Near strong magnetic field sources.

•

Near high voltage equipment or power lines.

• Where the level of mechanical vibration is high.

• On an unstable surface.

Installation position

Place the instrument in a horizontal position or inclined position using the stand or the handles (see the figure below). When using the stand, pull it forward until it locks. To retract it, set the stand back to its original position. Do not install the DL9000 in a position other than those indicated below.

Rubber Feet

Rubber stoppers can be attached to the four feet on the bottom of the DL9000, and the two projections on the rear. Six rubber stoppers are included with the DL9000.

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3.3 Connecting the Power

3-prong outlet

Power cord (included)

100BASE-TX

ETHERNET

ACT

LINK

USB

GO/NOGO

)

12 V

TRIG OUT

MAIN POWER

OFF

100 - 120/220 - 240 V AC

300 VA MAX 50/60 Hz

Before Connecting the Power

Make sure that you observe the following points before connecting the power. Failure to do so may cause electric shock or damage to the instrument.

WARNING

● Beforeconnectingthepowercord,ensurethatthesourcevoltagematchesthe

rated supply voltage of the instrument and that it is within the maximum rated voltage of the provided power cord.

● CheckthatboththemainpowerswitchandpowerswitchoftheDL9000areoff

before connection the power cord.

● Topreventthepossibilityofelectricshockorfire,besuretousethepowercord

for the instrument that was supplied by YOKOGAWA.

● Makesuretoperformprotectiveearthgroundingtopreventelectricshock.

Connect the power cord to a three-prong power outlet with a protective earth terminal.

● Donotuseanextensioncordwithoutaprotectiveearthground.Otherwise,the

protection function will be compromised.

● IfanAC

protective grounding cannot be furnished, do not use the instrument.

outletthatconformstotheaccessorypowercordisunavailableand

Making Preparations for Measurements

Connecting the Power Cord

Check that both the main power switch and power switch of the DL9000 are off.

Connect the power cord plug to the power connector on the rear panel.

Connect the other end of the cord to an outlet that meets the conditions below.

Use the three-prong power outlet equipped with a protective earth terminal.

Rated supply voltage* 100 to 120 VAC/220 to 240 VAC (automatic

Permitted supply voltage range 90 to 132 VAC/198 to 264 VAC Rated supply voltage frequency 50/60 Hz Permitted supply voltage frequency range 48 to 63 Hz Maximum power consumption Max. approx. 300 VA

* The DL9000 can use a 100-V or a 200-V system for the power supply

switching)

. The maximum

rated voltage dif

fers according to the type of power cord. Check that the voltage supplied to the DL9000 is less than or equal to the maximum rated voltage of the provided power cord (see page iii) before using it.

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3-5

Page 64

100BASE-TX

ETHERNET

ACT

LINK

USB

GO/NOGO

)

V DC

TRIG OUT

300 VA MAX 50/60 Hz

MAIN POWER

OFF

OFF ON

3.3 Connecting the Power

Turning ON the Power Switch

Items to Be Checked before Turning ON the Power

• The instrument is properly installed.: “3.2 Installing the Instrument”

• The power cord is properly connected.: Previous page

Turning ON the Main Power Switch

Switch the rear panel power switch to the ON ( | ) position.

Turning ON the Power Switch

Press the power switch on the front panel.

Powering off

CAUTION

Abruptly turning the main power switch off or unplugging the power cord while saving data or printing with the built-in printer, may damage the built-in printer or corrupt the media (PC card, internal hard disk, USB storage, and so on) on which data is being saved. The data being saved is also not guaranteed. Always complete data saving before turning off the main power switch.

Turning the Power Switch OFF

Turning the Main Power Switch OFF

Press the power switch on the front panel.

Check that the DL9000 internal fan has stopped, and that the screen is blank,

then switch the power switch on the rear panel to the OFF (

) position.

3-6

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Power Up Operation

A self-test and calibration start automatically when the power switch is turned ON. That lasts approximately 30 seconds. If the check results are satisfactory, the normal waveform display screen will appear.

Note

• Allow at least 10 seconds before turning ON the power switch after turning it OFF.

• If self-test and calibration do not start when the power is turned ON, or if the normal waveform display screen does not appear, turn OFF the power switch and check the following points.

• That the power cord is plugged in properly.

• That the correct voltage is coming to the power outlet (see page 3-5).

• The settings are initialized (they are returned to factory default settings) by turning on the

power switch while holding down the RESET key. For details on the initialization of the settings, see section 4.4, “Initializing Settings.”

If the instrument still fails to power up when the power switch is turned ON after checking

these points, contact your dealer.

• It takes several seconds for the startup screen to appear.

For Taking Accurate Measurements

• To ensure accurate measurements, allow the instrument to warm up for at least 30 minutes after turning ON the power switch.

• After warm-up is complete, perform calibration (see section 4. on, it will be executed automatically when started.

3.3 Connecting the Power

Making Preparations for Measurements

8). If Auto Calibration is

T/div is changed and signal acquisition is

Power Down Operation

The settings just prior to turning OFF the power (or when the power cord is unplugged) are stored. Therefore, the next time the power is turned ON, waveforms are measured using those settings.

Note

• A built-in lithium battery powers the memory that stores the settings. It has a life-span of

• If you turn OFF the main power switch of the rear panel when the power switch of the front

approximately 5 years when kept at an ambient temperature of 23°C. When the lithium battery voltage falls below a certain level, a message is displayed on the screen (error 900) when the power switch is turned ON. Whenever you see this message, you must have the lithium battery replaced immediately. The user cannot replace the battery. Contact your dealer to have a new battery installed.

panel is ON, the settings immediately before the power is turned OFF may not be stored correctly. An error message (error 900) may appear on the screen the next time you turn the power switch ON. This is not a malfunction. When turning the power OFF, turn OFF the power switch of the front panel, and then turn OFF the main power switch of the rear panel.

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3.4 Connecting the Probe

Connect a probe (or measurement input cable such as a BNC cable) to the input terminal on the bottom of the front panel. The input impedance is 1 MW ± 1% and approximately 20 pF or 50 W ± 1.5%.

WARNING

● AlwaysturnOFFthepoweroftheobjecttobemeasuredwhenconnectingitto

this instrument. Connecting or disconnecting a measuring lead while the power of the object to be measured is ON is extremely dangerous.

● Donotinputexcessivevoltagesthatexceedmaximum input voltage, withstand voltage, or tolerance surge voltage.

● Alwaysu

● Avoidcontinuousconnectionsinenvironmentswherethereisthepossibilitythat

tolerance surge voltages can be generated.

aprotectground(earth)fortheinstrumenttopreventelectricshocks.

CAUTION

● Theprobeinterfaceterminalislocatedneartheinputterminalonthisinstrument.

When connecting the probe, make sure to prevent an excessive voltage due to static electricity, etc., from being applied to the probe interface terminal, as this may damage it.

● Thep

● Themaximuminputvoltagefor1M

● Themaximuminputvoltagefor50Ω-inputis5Vrmsand10Vpeak.Applying

robeinterfaceterminalislocatedneartheinputterminalonthisinstrument.

Do not short the probe interface terminal.

Ω-

input is 150 Vrms when the frequency is 1 kHz or less. Applying a voltage exceeding the value can damage the input section. If the frequency is above 1 kHz, damage may occur even when the voltage is below the value.

voltage exceeding either of these values can damage the input section.

Precautions to Be Taken When Connecting Cables

• When connecting a probe to the instrument for the first time, perform phase correction of the probe as described in section 3.5, “Compensating the Probe (Phase Correction).” If you do not, frequency characteristics will not be flat, and measurements will not be correct. Perform the phase correction on each channel to which a probe is to be connected.

• Note that if the object being measured is directly connected to using a probe, correct measurements may not be possible because of the effect of input impedance on the instrument. Use caution.

a

the instrument without

3-8

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About Probes

3.4 Connecting the Probe

Specification of standard supplied probe (model 701943), after probe phase compensation

Item Specification Conditions

Overall probe length 1.5 m — Connector type BNC — Input impedance 10 MW �2% Input capacitance Approx. 14 pF Attenuation ratio

Bandwidth DC to 500 MHz

Rise time 700 ps or less (typical*) Maximum input voltage

* T

ypical values are typical or mean values. They are not strictly guaranteed.

Not exceeding 10 : 1 �2%

(not exceeding –3 dB)

600 V (DC+ACpeak) or 424 Vrms

Together with an oscilloscope of input impedance 1 MW �1%

When AC does not exceed 100 kHz

Precautions to Be Taken When Using Voltage Probes Other Than Those Provided with the Instrument

• When measuring a signal including a frequency close to 500 MHz, use a probe with a frequency range above 500 MHz.

• Measurement will only be correct if the attenuation ratio is set attenuation ration of the probe that you are using and set it properly

properly. Check the

Making Preparations for Measurements

Setting the Probe Attenuation Ratio or Voltage-Current Conversion Factor

When using a probe not supported by the probe interface connector, follow the procedure described in Section 6.6 to set the DL9000 attenuation ratio or voltage-current conversion factor to match the probe attenuation ratio or voltage-current conversion factor. If this setting is not carried out, correct measurement values will not be displayed.

Connecting a Probe Supported by the Probe Interface Connector

• If you connect a probe* supported by the probe interface connector to the DL9000, If you connect a probe* supported by the probe interface connector to the DL9000,If you connect a probe* supported by the probe interface connector to the DL9000, the probe type is automatically recognized, and the attenuation ratio set. Power is supplied to the probe through the probe interface, and therefore it is not necessary to connect the probe power cable to the probe power terminals.

• Y

ou can execute automatic zero adjustment (see section 5.14) on a current probe that

is compatible with the probe interface connector.

* For a list of compatible probes, see “Optional Accessories” on page v.

Connecting FET Probe, Current Probe, Differential Probe, or Deskew Correction Signal Source

If you are using the YOKOGAWA’s FET Probes, Current Probes, Differential Probes, or Deskew Correction Signal Source, use the Probe Power (option) on the DL9000 rear panel for the power supply. For details on the connection procedure, see the manual that comes with the respective product.

* For a list of probes and signal sources, see “Optional Accessories” on page v.

CAUTION

Do not use the Probe Power Terminal (option) on the DL9000 rear panel for purposes other than supplying power to the FET Probe, Current Probe, Differential Probe, or Deskew Correction Signal Source. Also, be sure that the total current of the four Probe Power Terminals and the four Probe Interface Terminals does not exceed 1.2 A. Otherwise, the device connected to the Probe Power Terminals or to the DL9000 may break.

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PROBE POWER

( )

12 V DC

CH 1 CH 2 CH 3 CH 4

Probe power supply terminals Probe interface connectors

Measured current (A)

Current consumption (mA)

–600

–500

–400

–300

–200

–100

100

200

300

400

500

600

–50 –40 –30 –20 –10 0 10 20 30 40 50

Positive power supply, DC input Positive power supply, AC (50 Hz) input

Negative power supply, DC input Negative power supply, AC (50 Hz) input

3.4 Connecting the Probe

Handling Precautions of the Probe Interface Terminals and Probe Power Terminals

If you are connecting the YOKOGAWA’s FET Probes, Current Probes, Differential Probes, or Deskew Correction Signal Source to the Probe Power Terminals (Option) on the rear panel, be sure that the total current of the two Probe Power Terminals and the four Probe Interface Terminals does not exceed 1.2 A. Otherwise, the DL9000 operation may become unstable due to the activation of the excessive current protection circuit of the power supply.

• When using current probes (701932/701933), the number of probes is limited, depending on the measured current (the current measured by the current probes). The characteristics of measured current versus current consumption for active probes that can be connected to the DL9000 are as follows.

• The current consumption of the FET probe (700939) and differential probe (700924, 700925, 701920, 701921, or 701922) should be calculated as a maximum of 125 mA for both negative and positive.

• Calculate the power consumption of the Deskew Correction S as 150 mA (positive power supply).

3-10

ignal Source (701935)

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3.5 Compensating the Probe (Phase Correction)

Signal output terminal for probe compensation adjustment

Functional ground terminal

Phase adjustment hole

Be sure to perform phase correction of the probe first when using a probe to make measurements.

CAUTION

Do not apply external voltage to the signal output terminal for probe compensation adjustment. This may cause damage to the internal circuitry.

Procedure

Turn ON the power switch.

Connect the probe to the input terminal to which the signal is to be applied.

Connect the tip of the probe to the signal output terminal for probe compensation

adjustment on the front panel of the instrument and to the ground wire to the functional ground terminal.

Perform auto setup according to the procedures given in section 4.5, “Performing

Auto Setup.”

Insert a flat-head screwdriver to the phase adjustment hole and turn the variable

capacitor to make the displayed waveform a correct rectangular wave.

Making Preparations for Measurements

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Page 70

Correct waveform Over compensated (The gain

in the high-frequency region is too high.)

Under compensated (The gain in the highfrequency region is too low.)

3.5 Compensating the Probe (Phase Correction)

Explanation

Necessity of Phase Correction of the Probe

The probe comes with its phase corrected approximately to match the input capacitance of the relevant oscilloscope. However, there is variance in the input resistance and input capacitance of each input channel of individual oscilloscopes. This results in a mismatch in the voltage divider ratio between low and high frequency signals and causes uneven frequency characterstics. There is a variable capacitor for adjusting the division ratio (trimmer) for high frequency signals on the probe. The phase is corrected by adjusting this trimmer so that even frequency characteristics are obtained. When using the probe for the first time, make sure to perform phase correction. Because the input capacitance varies on each channel, probe compensation is required when the probe is switched from one channel to another.

Phase Compensation Signal

The following square wave signal is output from the signal output terminal for probe compensation adjustment. Frequency: Approx. 1 kHz Amplitude: Approx. 1 V

Differences in the Waveform due to the Phase Correction of the Probe

3-12

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3.6 Setting the Date and Time

RESET

SET

7 8 9

FILE

SHIFT

SYSTEM

EXP

CLEAR

FILE UTILITY

D E F X

k m

u n p

4 5 6

1 2 3

+/-

CA B

Procedure

Press SYSTEM.

Press these soft keys: MISC > Date/Time.

The Date/Time setup dialog box appears.

Making Preparations for Measurements

Press the Display soft key to select ON or OFF.

• ON: Displays the date and time at the upper left of the screen.

• OFF: Does not display the date or time.

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3.6 Setting the Date and Time

Setting the Date and Time

If you are not using the SNTP function (see section 16.5) to set the DL9000 date and time and want to set them manually, carry out the steps below.

• Setting the Date

Press the Date soft key.

Press the Year soft key.

Use the rotary knob to set the year.

Likewise, set the month and day.

Press ESC.

• Setting the Time

Press the Time soft key. Press the Hour soft key. Use the rotary knob to set the hour.

Likewise, set the minute and second. Press ESC.

3-14

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Setting the Time Difference from GMT

3.6 Setting the Date and Time

Press the Time Diff. soft key. Press the Hour soft key. Use the rotary knob to set the time difference from GMT.

Likewise, set the minute. Press ESC.

Making Preparations for Measurements

Explanation

Applying the Settings

Press the Entry soft key. The specified date, time, and time difference take effect.

The specified settings only take effect when you press Entry.

Date and Time

• Day (Year/Month/Day)

Enter the year using four digits.

• Time (Hour:Minute:Second)

Set the hour using a 24-hour clock.

Time Difference from GMT

Set the time difference from GMT* according to the region where you are using the DL9000. Set the time difference properly so that the following functions work properly.

• Mail transmission using the SMTP

• Monitoring of the DL9000 using the Web server function (section 15.7)

* GMT information can be obtained from an SNTP server (section 15.5).

• Time Difference from GMT

Set the time difference from –12 hours 00 minutes to 13 hours 00 minutes.

For example, set Time Hour to 9 and Minute to 00 for Japan s

• Checking the Standard Time

You can check the standard time for your region in the followin

• Check the Date, Time, Language, Regional Options on your W

• Check the following website.http://www.worldtimeserver.com/

function (section 15.4)

tandard time.

g ways.

indows PC.

Note

• The DL9000 does not support Daylight Savings time. Adjust the time difference from GMT to obtain the same effect.

• The date and time settings are backed up with the internal Lithium battery. The settings remain even if you turn the DL9000 OFF.

• The DL9000 manages leap years.

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A: Press the corresponding soft key to switch the selected item. B: Press the corresponding soft key to display the selection menu.

To make a selection, press the soft key corresponding to the selection. C: Press the corresponding soft key to set the item under jog shuttle control.

Turn the jog shuttle to set the value. Press the arrow keys to move between digits. You can directly enter the value using the keys on the front panel or a USB keyboard.

D: Appears when there are 2 pages of the setup menu. Press the corresponding soft key to display page 2/2 (2 of 2) of the setup menu. The name changes to “Back (2/2).” To return to page 1/2 (1 of 2), press the corresponding soft key again. If there are 3 pages, the pages advance in the following order: page 1 page 2 page 3 page 1 page 2, and so on.

Setup menu

When CH1 is pressed When CURSOR is pressed

C ( or )

When controlled by the jog shuttle, changes to .

Chapter 4 Basic Operations

4.1 Operations and Functions of Keys and the Rotary Knob

Basic Key Operations

Using the Setup Menu That Appears When You Press a Front Panel Key

The setup menu that appears when you press CH1 or CURSOR is used as an example to explain the procedure.

1. Press

2. Press the soft key that corresponds to each item.

CH1 or CURSOR to display the respective setup menu.

Menu setup operations can be grouped into one of four patterns, A to D, as described below.

Basic Operations

IM 701310-01E

Note

For setup menus with multiple pages, the unit keeps the last setup menu that was open before the power was turned off. As a result, if you open the setup menu again after switching screens by pressing another panel key, the page you had been setting previously is displayed. Explanations in this manual proceed on the assumption that the first page of the setup menu appears when the panel key is pressed. The actual screen that appears when you press the panel key may differ from the explanations in this manual.

Displaying the Setup Menu Marked in Purple above the Panel Keys

In the explanations in this manual, “SHIFT+ panel key name (purple text)” refers to the following operation.

Press the SHIFT key. The SHIFT key illuminates to indicate the shifted state. The

setup menu marked in purple above the panel keys can be selected.

Press the panel key corresponding to the setup menu you wish to display.

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Page 75

E: Press SET to confirm the selection. Press SET again to release the selection. F: Press SET to switch the soft key menu to the settings for the item.

Setup dialog box

Turn the jog shuttle to move the cursor to the item you wish to set.

4.1 Operations and Functions of Keys and the Rotary Knob

Operations on the Setup Dialog Box

Open the setup dialog box using key operations.

Use the rotary knob or arrow keys to move the cursor to an appropriate item.

Press SET.

Depending on the item you are setting, the SET key operates in one of four ways, E and G, as described below.

In this manual, the phrase “use the rotary knob and SET” is used to describe steps 1

to 3 above.

Clearing the Setup Menu and Setup Dialog Box Displays

Press ESC. The setup menu or the dialog box shown on top is cleared from the

screen.

Note

In the procedural explanations in this manual, the operation of clearing the setup menu or setup dialog box may not be given.

4-2

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4.2 Entering Values and Strings

RESET

SET

Resets the setting to its initial value.

Arrow keys

Left/Right keys: Move between digits. Up/Down keys: Change the selected value.

Rotary knob

Decreases the value.

Increases the value.

Mark indicating that the rotary knob can be used to set the value

Entering Values

Entering Values Directly Using the Dedicated Knobs

The dedicated knobs indicated below can be turned to directly enter values.

• POSITION knob

• SCALE knob

• T/DIV knob

• MAG knob

Entering Values Using the Rotary Knob

After selecting the item you want to set by using soft keys, change its value using the rotary knob and arrow keys. In this manual, this operation may be simply described as “using the rotary knob.”

Basic Operations

IM 701310-01E

Note

The items that can be changed using the rotary knob are reset to their default values when the RESET key is pressed.

4-3

Page 77

Enters the displayed characters.

Switches between insert and overwrite mode.

Deletes the character before the entry position.

Deletes the character in the entry position.

Moves the cursor to the right.

Moves the cursor to the left.

4.2 Entering Values and Strings

Entering Strings

The keyboard displayed on the screen is used to enter character strings such as file names and comments. The rotary knob, SET, and arrow keys are used to operate the keyboard to enter the character strings.

Operating the Keyboard

To enter a numeric value, you can use the numeric keypad on the front panel.

To enter letters, press the INS soft key

Use the rotary knob to move the cursor to the character to be entered. Press the

arrow keys on the front panel to move the cursor left/right and up/down.

Press SET key to enter the character.

, then enter the characters. In insertion

mode, the cursor appears between characters.

Repeat steps 1 and 2 to enter all the characters in the string. You can press the Enter soft key or key on the front panel to confirm the string

and clear the keyboard.

4-4

Note

• Multiple @ characters cannot be entered consecutively.

• File names are not case-sensitive. Comments are case-sensitive. In addition, the following file names cannot be used due to limitations of MS-DOS.

AUX, CON, PRN, NUL, CLOCK, COM1 to COM9, and LPT1 to LPT9

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4.3 Operating the DL9000 Using a USB Keyboard

Port 1

1 2 3 4

Port 2

or a USB Mouse

Connecting a USB Keyboard

You can connect a USB keyboard for entering file names, comments, and other information.

Keyboards That Can Be Used

The following keyboards that conform to USB Human Interface Devices (HID) Class Version 1.1 can be used.

• When the USB keyboard language is English: When the USB keyboard language is Japanese: 109 keyboard

•

Set the USB keyboard language according to the instructions in section 18.3.

104 keyboard

Note

• Connect only the keyboards that are allowed.

• The operation of USB keyboards connected to a USB hub or those that have mouse connectors is not guaranteed.

• For USB keyboards that have been tested for compatibility, contact your nearest YOKOGAWA dealer.

USB Connector for Peripheral Devices

Connect the USB keyboard to the USB connector for connecting peripheral devices on the front panel. Two ports are available.

Basic Operations

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Pin No. Signal Name

1 VBUS: +5 V 2 D–: –Data 3 D+: +Data 4 GND: Ground

4-5

Page 79

USB keyboard

USB cable

ESC

SNAP

SNAP CLEAR

RESET

SET

7 8 9

FILE

SHIFT

SYSTEM

EXP

CLEAR

FILE UTILITY

D E F X

k m

u n p

4 5 6

1 2 3

+/-

CA B

CURSOR

PARAM

TELECOM TEST

WINDOW 1

WINDOW 2

FORM

ACCUM CLEAR

ZOOM 1

ZOOM 2

DISP 2 HISTORY CLEAR

DISP 1

MAG

INTENSITY

SETUP

HELP

HISTORY

MEASURE

ANALYSISXYDISPLAY ZOOM

ACCUM

PUSH

FINTE

CH 1

CH 2

CH 3

CH 4

M 1

M 2

M 3

M 4

VERTICAL POSITION

PUSH

FINTE

SCALE

ACQ

START STOP

TRIG

MODE

HOLD OFF

POSITION DELAY

EDGE STATE

ACQUIRE

HORIZONTAL

TRIGGER

T DIV

ACQ

COUNT ACTION

TRIG’D

LEVEL

COUPLING

EVENT INTERVAL

WIDTH

SOURCE

ENHANCED

SAMPLING LENGTH

CH 1

POWER

COMP

CH 2 CH 3 CH 4

DL9000

Press the corresponding soft key, and then enter the value using the USB keyboard. Press the Enter key to enter the value.

Value entered using the keyboard

4.3 Operating the DL9000 Using a USB Keyboard or a USB Mouse

Connection Procedure

When connecting a USB keyboard, directly connect the keyboard to the DL9000 using a USB cable as shown below. You can connect the USB cable regardless of whether the power to the DL9000 is ON or OFF (supports hot-plugging). Connect the type A connector of the USB cable to the DL9000; connect the type B connector to the keyboard. When the power switch is ON, the keyboard is detected and enabled approximately six seconds after it is connected.

Note

• Do not connect USB devices other than a compatible USB keyboard, USB mouse, USB printer, and USB storage to the USB connector for connecting peripheral devices.

• Do not connect multiple keyboards. Only 1 keyboard, 1 mouse, and 1 printer can be connected.

• Do not connect and disconnect multiple USB devices successively. Allow at least ten seconds between the connection and disconnection of a USB device and the connection and disconnection of the next USB device.

• Do not disconnect the USB cable after the power is turned ON until key operation becomes possible (approximately 20 to 30 s).

Entering File Names, Comments, and Other Items

When a keyboard is displayed on the screen, you can enter the file name, comment, and other items using a USB keyboard.

Entering Values from a USB Keyboard

You can enter values from a USB keyboard for items with the or mark.

4-6

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Operations Using a USB Mouse

USB Mouse

ESC

SNAP

SNAP CLEAR

RESET

SET

7 8 9

FILE

SHIFT

SYSTEM

EXP

CLEAR

FILE UTILITY

D E F X

k m

u n p

4 5 6

1 2 3

+/-

CA B

CURSOR

PARAM

TELECOM TEST

WINDOW 1

WINDOW 2

FORM

ACCUM CLEAR

ZOOM 1

ZOOM 2

DISP 2 HISTORY CLEAR

DISP 1

MAG

INTENSITY

SETUP

HELP

HISTORY

MEASURE

ANALYSISXYDISPLAY ZOOM

ACCUM

PUSH

FINTE

CH 1

CH 2

CH 3

CH 4

M 1

M 2

M 3

M 4

VERTICAL POSITION

PUSH

FINTE

SCALE

ACQ

START STOP

TRIG

MODE

HOLD OFF

POSITION DELAY

EDGE

STATE

ACQUIRE

HORIZONTAL

TRIGGER

T DIV

ACQ

COUNT ACTION

TRIG’D

LEVEL

COUPLING

EVENT INTERVAL

WIDTH

SOURCE

ENHANCED

SAMPLING LENGTH

CH 1

POWER

COMP

CH 2 CH 3 CH 4

DL9000

You can use a USB mouse to operate the DL9000 as you would use the front panel keys. In addition, you can point to a desired item on a menu and click the item. This is analogous to pressing a soft key corresponding to a menu and pressing the SET key.

USB Connector for Connecting Peripheral Devices

Connect a USB mouse to the USB connector for connecting peripheral devices on the front panel of the DL9000. For details on the USB connector for connecting peripheral devices, see page 4-5.

Compatible USB Mouse

A USB mouse conforming to USB HID Class Version 1.1 can be used.

Note

For USB mouse devices that have been tested for compatibility, contact your nearest YOKOGAWA dealer.

Connection Procedure

If you want to connect a USB mouse to the DL9000, connect the mouse to the USB connector for connecting peripheral devices. You can connect/disconnect the USB mouse connector regardless of the power ON/OFF state of the DL9000 (supports hotplugging). When the power switch is turned ON, the mouse is detected approximately six seconds after it is connected, and a pointer (

4.3 Operating the DL9000 Using a USB Keyboard or a USB Mouse

Basic Operations

) is displayed.

Note

• Do not connect USB devices other than a compatible USB keyboard, USB mouse, USB printer, and USB storage to the USB connector for connecting peripheral devices.

• There are two USB connectors for connecting peripheral devices. However, do not connect mouse devices to both connectors at the same time.

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Left-click within this frame to switch the selected item with each click.

Left-click within this frame to show the selection menu. Point to the item you wish to select and left-click the item to confirm the selection.

Move the pointer over the item you wish to select and left-click.

4.3 Operating the DL9000 Using a USB Keyboard or a USB Mouse

USB Mouse Operation

• Setup Menu Operation (Similar to the Soft Key Operation) Selecting an Item on the Setup Menu

Left-click the item you wish to select on the setup menu. If another menu appears when you select an item, move the p

displaying the item you wish to select and left-click the item.

If an item such as ON or OFF appears when you select an item, move the pointer to

the new frame and left-click within the frame to switch the selected item. For menus in which items are selected using the rotary knob and SET (see page 4-3), left-click the desired item. Left-click again to confirm the new setting and close the selection dialog box.

ointer to the new menu

• Selecting Toggle Box Items on the Dialog Box Move the pointer to the item you wish to select and then left-click the item. The item is selected. Click the selected item again to deselect it. To close the dialog box, press the ESC key

Note

To close an error dialog box, press the ESC key on the front panel.

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4.4 Initializing Settings

CURSOR

PARAM

TELECOM TEST

WINDOW 1

WINDOW 2

FORM

ACCUM CLEAR

ZOOM 1

ZOOM 2

DISP 2 HISTORY CLEAR

DISP

MAG

INTENSITY

SETUP

HELP

HISTORY

MEASURE

ANALYSISXYDISPLAY ZOOM

ACCUM

Execute initialization

Cancel initialization

Procedure

Executing Initialization

Press SETUP.

Press the Initialize soft key. Initialization is executed.

Basic Operations

Canceling Initialization

Press the Undo soft key. The settings return to the conditions that existed

immediately before initialization.

Explanation

You can restore the factory default settings. This is useful when you wish to clear previous settings or start measurement from scratch.

Initialization

Initialization refers to the act of restoring the factory default settings.

Items That Cannot Be Initialized

• Date/Time setting

• Settings related to communications

• English/Japanese language setting

Canceling Initialization

If you initialize the settings by mistake, you can press the Undo Initialize soft key to return to the settings that existed before the initialization. When you turn OFF the power switch, the settings that existed immediately before initialization are cleared. Therefore, the Undo operation is not possible in this case.

Initializing All the Settings

When the power is turned ON while holding down the RESET key, all settings excluding the date/time setting (display ON/OFF is initialized) are initialized to factory default settings.

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4.5 Performing Auto Setup

CURSOR

PARAM

TELECOM TEST

WINDOW 1

WINDOW 2

FORM

ACCUM CLEAR

ZOOM 1

ZOOM 2

DISP 2 HISTORY CLEAR

DISP

MAG

INTENSITY

SETUP

HELP

HISTORY

MEASURE

ANALYSISXYDISPLAY ZOOM

ACCUM

Execute auto setup

Cancel auto setup

Procedure

Executing Auto Setup

Press SETUP.

Press the Auto Setup soft key. Auto setup is executed.

When auto setup is executed, signal acquisition starts automatically.

Canceling Auto Setup

Press the Undo soft key. The settings are set back to their original condition.

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Explanation

Before auto setup After auto setup

4.5 Performing Auto Setup

The auto setup function automatically sets the key settings such as V/div, T/div, and trigger level that are appropriate for the input signal.

Basic Operations

Center Position after Auto Setup

The center position after auto setup is 0 V.

Applicable Channels

Auto setup is performed on all channels.

Waveforms That Were Displayed before Auto Setup

If you execute auto setup, data in the acquisition memory will be overwritten, and waveforms that were displayed before auto setup will be cleared.

Canceling Auto Setup

Pressing the Undo soft key to sets the DL9000 back to the settings that existed before auto setup. However, when you turn OFF the power switch, the settings that existed immediately before auto setup are clear. Therefore, the Undo operation is not possible in this case.

Applicable Signals for Auto Setup

Frequency Approx. 50 Hz or higher Absolute value of the input voltage Maximum value is greater than or equal to approximately

20 mV (when the probe attenuation is set to 1:1)

Type Repetitive signal (that is not complex)

Note

The auto setup function may not work properly if the signal includes DC components or highfrequency components.

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4.5 Performing Auto Setup

Setup Data after Executing Auto Setup

Related CH1 to CH4

Select INPUT Position 0 div Coupling DC1MΩexceptDC50Ω

NochangeforDC50Ω

BW FULL Offset 0 V Invert OFF

M1 to M4

Display OFF

Acquisition

Mode Normal Hireso OFF

SAMPLING/LENGTH

Interp ON Repetitive OFF Interleave OFF Length 125 kW

Trigger

Mode Auto HoldOff Min (20 ns) Delay OFF Position 50% Type Edge Polarity Rise Coupling DC Hysteresis Small HF Rej OFF Window OFF

Accumulation

Mode OFF

Screen display

Mapping Auto Dot Connect Sine Intensity 10 (Default) Brightness 8 (Default)

Zoom

Zoom OFF Main ON

Cursor

Display OFF

Waveform parameter

Display OFF Telecom Test Display OFF

Analysis

Display OFF

Items depending on input signals

CH On/Off ON when detecting voltage of �7 mV or higher, OFF when detecting

less than �7 mV V/div Select the highest range of sensitivity that does not exceed �3.5 div Trigger Level Center Trigger Source Channel whose input amplitude (Max-Min) is 1 division or greater with

the lowest frequency T/Div The fastest sweep range that exceeds 5 ms/div whose input

amplitude is 1 division or greater and which the fastest frequency can

be observed with 2 cycles or greater FORM VT Form 1 to 4 windows based on the active channels

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4.6 Storing and Recalling Setup Data

CURSOR

PARAM

TELECOM TEST

WINDOW 1

WINDOW 2

FORM

ACCUM CLEAR

ZOOM 1

ZOOM 2

DISP 2 HISTORY CLEAR

DISP

MAG

INTENSITY

SETUP

HELP

HISTORY

MEASURE

ANALYSISXYDISPLAY ZOOM

ACCUM

Store

Enter comments

Displays the date when the setup data was stored for internal memories containing stored data

Displays the comment if a comment was entered

Select the check box to prohibit overwriting of the setup data

Procedure

Press SETUP.

Storing the Setup Data

Press the Store soft key.

Press any of the #1 to #12 soft keys to select the storage destination in the

internal memory. Press the Next 1/3 or Next 2/3 soft key to select #6 to #12.

Store Data Details

Press the Store Detail soft key. The Store Detail dialog box appears.

• Entering a Comment

Use the rotary knob to move the cursor to Comment, and press SET. A keyboard

appears.

Enter a comment according to the procedure given in section 4.2. Then, press

Enter.

Basic Operations

• Prohibiting the Overwriting of the Setup Data

Use the rotary knob to move the cursor to Lock. Press SET to enter a check

mark. Press SET again to clear the check mark.

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Recall

4.6 Storing and Recalling Setup Data

Recalling the Setup Data

Press the Recall soft key.

Press any of the #1 to #12 soft keys to select the setup data to be recalled from

the internal memory. Press the Next 1/2 soft key to select #7 to #12.

Explanation

Up to 12 sets of setup data can be stored to the internal memory. You can load setup data stored in the past to produce the same settings.

Stored Items

All items set using the soft key menu or rotary knob and the channel ON/OFF state are stored.

Storing the Setup Data

You can store the setup data in any of the 12 internal memories, #1 to #12. If data is already stored in the internal memory of the specified number, the data is overwritten. However, if the memory is locked in the detail menu of the store data, the data cannot be overwritten.

Recalling the Setup Data

You can recall the setup data that is stored in any of the 12 internal memories, #1 to #12. You can only select memories that have setup data stored.

Store Data Details

The date when the data was stored to the internal memory is displayed. You can enter a comment using up to 16 alphanumeric characters. The comment that you enter appears below the internal memory number in the Store/Recall menu. Internal memories with a check mark under Lock are read-only.

Note

• The stored setup data are not cleared even if you initialize the settings on the DL9000.

• If you recall setup data while signals are being acquired, signal acquisition is restarted.

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4.7 Starting/Stopping Signal Acquisition

Procedure

Starting/Stopping Signal Acquisition

Press START/STOP. Signal acquisition starts/stops.

Signal is being acquired when the key illuminates.

Explanation

Signal Acquisition and Indicator Display

• Signal is being acquired when START/STOP illuminates. “Running” is displayed on the upper left corner of the screen.

• Signal stops being acquired when ST displayed on the upper left corner of the screen.

ART/ST

OP does not illuminate. “Stopped” is

Basic Operations

Operation When the Acquisition Mode Is Set to Averaging Mode

• Averaging is stopped when signal acquisition is stopped.

• Averaging starts again when signal acquisition is restarted.

START/STOP Operation during Accumulation

Accumulation is temporarily aborted when acquisition is stopped. When restarting the acquisition, the DL9000 clears signal that was already acquired and restarts accumulation.

Note

• When the trigger mode is other than Single, starting signal acquisition clears data already stored in acquisition memory.

• A snapshot function that keeps the current displayed waveform on the screen is also available. You can update the display without stopping signal acquisition (see section 8.7).

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4.8 Performing Calibration

RESET

SET

7 8 9

FILE

SHIFT

SYSTEM

EXP

CLEAR

FILE UTILITY

D E F X

k m

u n p

4 5 6

1 2 3

+/-

CA B

Execute calibration

Auto calibration

Procedure

Press SYSTEM.

Press the Calibration soft key.

Press the Cal Exec soft key. Calibration is executed.

To set auto calibration press the Auto Cal soft key to select ON or OFF.

Explanation

4-16

Calibration

The following items are calibrated. Perform calibration when you wish to measure signals with high accuracy.

• Ground level and gain of the vertical axis

• T

rigger threshold level

• Time measurement value during repetitive sampling

Note

The calibration described above is performed automatically when the power switch is turned ON.

Precautions to Be Taken When Performing Calibration

• Always allow the instrument to warm up for at least 30 minutes after the power is turned ON before starting calibration. If calibration is performed immediately after the power is turned ON, the calibration may be inaccurate due to drift caused by fluctuation in the temperature of the instrument.

• Calibration must be performed when the temperature of the in between 5°C and 40°C (preferably at 23°C �5°C).

• Do not apply a signal when performing calibration. Calibration incorrectly when an input signal is being applied.

Auto Calibration

Calibration is automatically performed when T/div is changed and signal acquisition is started for the first time after the following time elapses after turning ON the power.

• 3 minutes

• 10 minutes

• 30 minutes

• 1 hour and every hour thereafter

If calibration is executed while a signal is applied to the DL9000, it is recommended that the DL9000 be recalibrated without applying a signal.

strument is stable and is

may be executed

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Chapter 5 Vertical and Horizontal Axes

5.1 Switching the Display of Input Waveforms ON and OFF

Procedure

Switching the Display ON

Press the key for the channel to be displayed, from CH1 to CH4. The key lights,

and the waveform appears.

The menu for the channel settings appears.

Press the Select soft key, and select Input.

Vertical and Horizontal Axes

Switching the Display OFF

Press the key for the channel to be turned off, from CH1 to CH4.

The menu for the channel settings appears.

Press the Display soft key, and select OFF.

Explanation

The channel keys (CH1 to CH4) set to ON light. When a channel key is off, press the key once to change the indication to ON, lighting the key. When a channel key is lit, press the key twice in succession, changing the indication to OFF, and turning off the key.

Note

• Scale values (section 5.12) and signal labels (section 8.6) can also be displayed using the DISPLAY menu.

• If interleave mode (see section 7.5) is ON, CH2 and CH4 cannot be displayed.

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5.2 Setting the Offset Voltage

Offset value

This option should be set to INPUT.

Procedure

Press one of the CH1 to CH4 keys to select the channel.

Use the rotary knob to set the offset value.

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Explanation

5.2 Setting the Offset Voltage

The setting of the offset voltage is effective for all the input couplings: AC1 MW, DC1 MW, DC50 W, and GND. An offset voltage can be set on input waveforms (the Select setting set to Input).

Selectable Range of Offset Voltage

Voltage Sensitivity (Probe = 1 : 1) Offset Voltage Selectable Range

2 mV/div to 50 mV/div –1.0 V to 1.0 V

0.1 V/div to 0.5 V/div –10.0Vto10.0V(–5.0Vto5.0VforDC50Ω) 1 V/div to 5 V/div –100.0 V to 100.0 V

The resolution is 0.01 divisions. For 2 mV/div, the resolution is 0.02 mV.

Resetting the Offset Value

Pressing the RESET key resets the offset value to 0 V.

Note

• If you change the probe attenuation, the offset changes proportionally to reflect the new attenuation rate.

• The offset voltage does not change, even if you change the voltage sensitivity. However, an offset voltage outside the above selectable range is set to the maximum or minimum value that could be selected for the voltage sensitivity. If the voltage sensitivity is returned to its previous value without changing the offset voltage then the offset voltage also returns to its previous value.

Vertical and Horizontal Axes

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5.3 Setting the Vertical Position of the Waveform

500 mV/div, Offset: –1 V, Position: 0 div

GND level mark

Vertical position mark

Procedure

Press one of the CH1 to CH4 keys to select the channel.

Use the POSITION knob to set the vertical position.

By pressing the POSITION knob, lighting the FINE indicator, you can make settings with a higher resolution.

Explanation

Range of Movement

The vertical position can be moved within a range of �4 divisions from the center of the waveform area.

Resolution

0.5 div (or 0.02 div for FINE)

Confirming the Vertical Position

For input waveforms and computed waveforms, the ground level and vertical position are marked to the left of the waveform area.

Note

If the position is changed after the signal is acquired then data that is beyond the measurement range is handled as overflow data. Overflow data may result in a chopped waveform, as in the following figure.

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5.4 Setting the Input Coupling

This option should be set to INPUT.

Procedure

Press one of the CH1 to CH4 keys to select the channel.

Press the Coupling soft key.

Press the soft key corresponding to the desired coupling.

Vertical and Horizontal Axes

Note

When a probe supported by the DL9000 probe interface is used, the input coupling is set automatically.

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0 dB

– 3 dB

–3 dB attenuation point

Attenuation

0 dB

– 3 dB

–3 dB attenuation point

Attenuation

Lower –3 dB attenuation point when connected by AC

Input frequency

When AC is selected When DC is selected

5.4 Setting the Input Coupling

Explanation

Selecting the Input Coupling

You can select the method of coupling the input signal to the vertical control circuit in the following ways.

Input Coupling and Frequency Characteristics

The following shows the frequency characteristics when AC or DC are selected. Note that when AC is selected, low frequency signals or signal components are not acquired (as shown in the figure below).

AC Acquires and displays only the AC component of the input signal. DC Acquiresanddisplaysallthecomponents(DCandAC)oftheinputsignal(1MΩinput).

This can only be selected when measuring voltage. GND DC50 Acquiresanddisplaysallthecomponents(DCandAC)

Checks the ground level.

oftheinputsignal(50Ωinput).

CAUTION

• The maximum input voltage for the 1-MW input is 150 Vrms when the frequency is 1 kHz or less. Applying a voltage exceeding this maximum can damage the input section. If the frequency is above 1 kHz, the input section may be damaged even when the voltage is below the values specified above.

• The maximum input voltage for the 50-W input is 5 Vrms and 10 Vpeak. Applying a voltage exceeding either of these voltages can damage the input section.

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5.5 Setting Bandwidth Limits

This option should be set to INPUT.

– 3dB

Approx. 2 MHz

FULL

Approx. 8 kHz

Approx. 16 kHz

Approx. 32 kHz

Approx. 62.5 kHz

Approx. 125 kHz

Approx. 250 kHz

Approx. 500 kHz

Approx. 1 MHz

Approx. 4 MHz

Approx. 8 MHz

Approx. 20 MHz

Approx. 200 MHz

Procedure

Press one of the CH1 to CH4 keys to select the channel.

Press the Bandwidth soft key.

Press the soft key corresponding to the desired bandwidth.

If “8 M - 1 MHz” or “500 - 8 kHz” is selected, another Bandwidth menu appears. Press a soft key to select the bandwidth.

Vertical and Horizontal Axes

Note

The bandwidth limit is set for each channel. Set the bandwidth limit for all desired channels.

Explanation

Bandwidth

It is possible to remove the high frequency components from the input signal. The frequency characteristics when the bandwidth has been given limits are shown below. If you select FULL, the largest bandwidth is selected.

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In high resolution mode, a 200 MHz filter is used internally even for FULL.

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5.6 Setting the Probe Attenuation

Set the attenuation using the rotary knob.

Procedure

Press one of the CH1 to CH4 keys to select the channel.

Press the Probe soft key.

Press the soft key corresponding to the desired type (attenuation ratio).

Explanation

The following probe types can be selected for each channel:

AUTO, 1 : 1, 10 : 1, 100 : 1, 1000 : 1, 10 A : 1 V, 100 A : 1 V.

• 1 : 1 to 1000 : 1 are probe attenuation settings.

• 10 A : 1 V and 100 A : 1 V are probe output current rates.

• If AUT

In addition to using the soft keys, you can now select the probe attenuation using the rotary knob. When using the rotary knob, you can select from the choices below. The menu corresponding to the attenuation that you select with the rotary knob is highlighted.

Auto, 1:1, 2:1, 5:1, 10:1, 20:1, 50:1, 100:1, 200:1, 500:1, 1000:1, 1A : 1V,10A:1V, or 100A:1V

Note

O is selected then the attenuation is automatically selected when the probe is

connected to the corresponding probe interface.

If the probe type is not set correctly, the voltage and scale values of the input signals will not be displayed correctly. For example, if you set the attenuation to 1 : 1 when you are using a 10 : 1 voltage probe, the automatically determined waveform amplitude will be displayed as 1/10th the actual value.

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5.7 Setting the Scale

Procedure

Press one of the CH1 to CH4 or M1 to M4 keys to select the channel.

Turn the SCALE knob to set the V/div value.

By pressing the SCALE knob, lighting the FINE indicator, you can make settings with a higher resolution.

Explanation

Setting V/div

The V/div (voltage sensitivity) setting is used to adjust the displayed amplitude of the waveform for easy measurement. You can set the value in terms of the voltage per division of the screen grid. V/div is set in steps of 1-2-5 (i.e., 1 V/div, 2 V/div, and 5 V/div).

Vertical and Horizontal Axes

Note

• The displayed waveforms do not change if you turn the SCALE knob while signal acquisition is stopped. The new V/div value takes effect the next time signal acquisition is restarted.

• Turning the SCALE knob while acquisition is stopped has no effect on cursor measurement values and automated measurement values of waveform parameters. The displayed values are for the determined V/div setting.

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5.8 Setting Time Axis (T/div)

Procedure

Turn the T/DIV knob to set the T/div value.

Note

• If the T/DIV knob is turned while acquisition is stopped, the new T/div value appears in the upper center of the screen and takes effect when acquisition is restarted.

• See Appendix 1, “Relationships between the Time Setting, Sample Rate, and Record Length” for the relationship between T/div and the sample rate.

Explanation

You can set the value in terms of the time per division of the screen grid.

Selectable T/div Range

500 ps/div to 50 s/div

T/div and Roll Mode

Roll mode is used if T/div is set to a value between 100 ms/div and 50 s/div under the following conditions:

• Acquisition mode is set to a mode other than averaging.

• T

rigger mode is set to auto, auto level, or single.

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5.9 Using the Auto Scale Function

Procedure

Press one of the CH1 to CH4 keys to select the channel.

Press the Select soft key to select INPUT or MATH.

For INPUT:

Press the Auto Scale EXEC soft key.

Vertical and Horizontal Axes

For MATH:

Press the Ranging soft key to select Auto.

Explanation

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Auto Scale can be set for each channel. The following are set in the following ways when Auto Scale EXEC is used:

V/div Displayed so that the entire amplitude of the waveform can be seen without

changing the vertical position.

Offset 0 V when the input coupling is AC.

Center = (Max – Min)/2 when the input coupling is DC.

Trig Level DC offset position.

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YOKOGAWA DL9000, DL9040L, DL9140, DL9140L, DL9240 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Checking the Contents of the Package

Safety Precautions

Waste Electrical and Electronic Equipment

Symbols and Notation Used in This Manual

Workflow

Contents

Chapter 1 Names and Functions of Parts

1.1 Top Panel, Front Panel, and Rear Panel

1.2 Operating Keys and Knobs

1.3 Screen Display

Chapter 2 Explanation of Functions

2.1 Block Diagram

2.2 Channels and Displayed Waveforms

2.3 Vertical and Horizontal Axes

2.4 Triggers

2.5 Acquisition Conditions

2.6 Display

2.7 Computation

2.8 Analyzing and Searching

2.9 Communications

2.10 Other Useful Functions

Chapter 3 Making Preparations for Measurements

3.1 Handling Precautions

3.2 Installing the Instrument

3.3 Connecting the Power

3.4 Connecting the Probe

3.5 Compensating the Probe (Phase Correction)

3.6 Setting the Date and Time

Chapter 4 Basic Operations

4.1 Operations and Functions of Keys and the Rotary Knob

4.2 Entering Values and Strings

4.4 Initializing Settings

4.5 Performing Auto Setup

4.6 Storing and Recalling Setup Data

4.7 Starting/Stopping Signal Acquisition

4.8 Performing Calibration

Chapter 5 Vertical and Horizontal Axes

5.1 Switching the Display of Input Waveforms ON and OFF

5.2 Setting the Offset Voltage

5.3 Setting the Vertical Position of the Waveform

5.4 Setting the Input Coupling

5.5 Setting Bandwidth Limits

5.6 Setting the Probe Attenuation

5.7 Setting the Scale

5.8 Setting Time Axis (T/div)

5.9 Using the Auto Scale Function