YOKOGAWA DLM4038, DLM4058 Getting Started Manual

User ’s
Manual

DLM4000 Series
Mixed Signal Oscilloscope
Getting Started Guide

IM DLM4038-03EN

9th Edition

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 website.

http://tmi.yokogawa.com/

PIM 103-04E

Thank you for purchasing the DLM4000 Series Mixed Signal Oscilloscope. This getting started guide
primarily explains the handling precautions and basic operations of the DLM4000. To ensure correct
use, please read this manual thoroughly before beginning operation.
Keep this manual in a safe place for quick reference in the event that a question arises.

List of Manuals

The following manuals, including this one, are provided as manuals for the DLM4000 series. Please
read all manuals.

Manual Title Manual No. Description

DLM4000 Series
Mixed Signal Oscilloscope
Features Guide
DLM4000 Series
Mixed Signal Oscilloscope
User’s Manual
DLM4000 Series
Mixed Signal Oscilloscope
Getting Started Guide

DLM4000 Series
Mixed Signal Oscilloscope
Communication Interface User’s Manual
Model DLM4038, DLM4058 Mixed
Signal Oscilloscope

The “EN” and “Z1” in the manual numbers are the language codes.

IM DLM4038-01EN The manual explains all the DLM4000 features other

than the communication interface features.
(included in the accompanying manual CD)

IM DLM4038-02EN The manual explains how to operate the DLM4000.

(included in the accompanying manual CD)

IM DLM4038-03EN This guide. Provided as a printed manual. This guide

explains the handling precautions, basic operations,
and specifications of the DLM4000.
(included in the accompanying manual CD)

IM DLM4038-17EN The manual explains the DLM4000 communication

interface features and instructions on how to use them.
(included in the accompanying manual CD)

IM DLM4038-92Z1 Document for China

Contact information of Yokogawa offices worldwide is provided on the following sheet.

Document No. Description

PIM 113-01Z2 List of worldwide contacts

Notes

• The contents of this manual are subject to change without prior notice as a result of continuing
improvements to the instrument’s performance and functionality. The figures given in this manual
may differ from those that actually appear on your screen.

• Every effort 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
YOKOGAWA dealer.

• Copying or reproducing all or any part of the contents of this manual without the permission of
YOKOGAWA is strictly prohibited.

• The TCP/IP software of this product and the documents concerning it have been developed/created
by YOKOGAWA based on the BSD Networking Software, Release 1 that has been licensed from
the Regents of the University of California.

Trademarks

• Microsoft, Internet Explorer, MS-DOS, Windows, Windows 7, Windows 8, Windows 8.1, and
Windows 10 are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.

• Adobe and Acrobat are either registered trademarks or trademarks of Adobe Systems Incorporated.

• DLM is a registered trademark of Yokogawa Electric Corporation.

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

• Other company and product names are registered trademarks or trademarks of their respective
holders.

9th Edition: July 2018 (YMI)
All Rights Reserved, Copyright © 2012 Yokogawa Test & Measurement Corporation

IM DLM4038-03EN

i

Disposing of YOKOGAWA Products

When disposing of YOKOGAWA products, follow the laws and ordinances of the country or region
where the product will be disposed of.

Revisions

• 1st Edition: November 2012

• 2nd Edition: February 2013

• 3rd Edition: June 2013

• 4th Edition: February 2015

• 5th Edition: May 2015

• 6th Edition: January 2016

• 7th Edition: October 2016

• 8th Edition: October 2017

• 9th Edition: July 2018

ii

IM DLM4038-03EN

Checking the Contents of the Package

Unpack the box and check the contents before operating the instrument. If the wrong items have been
delivered, if items are missing, or if there is a problem with the appearance of the items, contact your
nearest YOKOGAWA dealer.

DLM4000

Check that the product that you received is what you ordered by referring to the model name and suffix
code given on the name plate on the left side panel.

-D

-F

-Q

-R

-H

-N

1

-HJ

-HE

-HC

-HG

-HF

-HK

-HL

-HS

Specifications

UL/CSA Standard power cord, Maximum rated voltage: 125 V
VDE Standard power cord, Maximum rated voltage: 250 V
BS Standard power cord, Maximum rated voltage: 250 V
AS Standard power cord, Maximum rated voltage: 250 V
GB Standard power cord, Maximum rated voltage: 250 V
NBR Standard power cord, Maximum rated voltage: 250 V
Japanese
English
Chinese
German
French
Korean
Italian
Spanish
Logic 16 bits

/B5

Built-in printer

/M1

Memory expansion to 6.25/25/62.5 M points

/M2

Memory expansion to 12.5/62.5/125 M points

/M3

Memory expansion to 25M/125M/250M points

/P8

8 probe power terminals

/C1

GP-IB interface

/C8

Approx. 7.2 GB of internal storage

/G2

User-defined computation

/G3

Power supply analysis

/G4

Power supply analysis (includes user-defined computation)

/F1

UART trigger and analysis

/F2

I2C + SPI trigger and analysis

/F3

UART + I2C + SPI trigger and analysis

/F4

CAN + LIN trigger and analysis + CXPI analysis

/F5

FlexRay trigger and analysis

/F6

CAN + LIN + FlexRay trigger and analysis + CXPI analysis

/F7

CAN + CAN FD + LIN trigger and analysis + CXPI analysis

/F8

CAN + CAN FD + LIN + FlexRay trigger and analysis + CXPI analysis

/F9

SENT trigger and analysis

/F10

PSI5 analysis

/F11

SENT + PSI5 trigger and analysis

/E1

Four extra 701939 passive probes in addition to the four standard 701939
passive probes

/E2

Four 701946 miniature passive probes instead of the four standard 701939
passive probes

/E3

Eight 701946 miniature passive probes instead of the four standard 701939
passive probes

3

MODEL SUFFIX

DLM4038 Mixed Signal Oscilloscope, 8 channels+ 8-bit switchable logic, 350 MHz
DLM4058 Mixed Signal Oscilloscope, 8 channels+ 8-bit switchable logic, 500 MHz
Power cord

Language
(One option can be
selected for the factory
default message
language and panel
sheet language)

Options /L16

1 For products whose suffix code contains “Z,” an exclusive manual may be included. Please read it along with the

standard manual.

2 Make sure that the attached power cord meets the designated standards of the country and area that you are

using it in.

3 Option /P8 is necessary to use a probe that is not compatible with the probe interface and that requires a power

supply. For detailed specifications, see sections 2.4 and 6.9.

2

IM DLM4038-03EN

iii

Checking the Contents of the Package

Note

The SUFFIX (suffix code) inscribed in the name plate on the DLM4000 case indicates the installed options at
the time of factory shipment. After you add options through additional option licenses, check the options on
the DLM4000 overview screen.*
* For details on additional option licenses, see “Overview (Overview)” in chapter 22, “Other Features” of the

features guide, IM DLM4038-01EN.

NO. (Instrument number)

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

Standard Accessories

The instrument is shipped with the following accessories. Make sure that all accessories are present
and undamaged.

Item Model or Part No. Quantity Specifications and Notes

Power cord

Rubber feet B8080FR 4 —
Printer roll paper
500-MHz passive probe
Soft case B8059GG 1 —
Front cover B8069CH 1 —
Panel sheet See below. 1 Japanese, Chinese, German, French, Korean,

Manuals

Standard accessories are not covered by warranty of this instrument.

1

2

3

Printed manuals IM DLM4038-03EN 1 Getting Started Guide (this guide)

Manual CD B8069RZ 1 Contains PDFs of the user’s manuals

A1006WD
A1009WD
A1054WD
A1024WD
A1064WD
A1088WD

B9988AE 1 —
701939 4 —

IM DLM4038-92Z1 1 Document for China
PIM 113-01Z2 1 List of worldwide contacts

1 UL/CSA standard

VDE standard
BS standard
AS standard
GB standard
NBR standard

Italian, or Spanish

(For the types of manuals that CD contains,
see the next page.)

iv

IM DLM4038-03EN

Printer roll paper
B9988AE 1 roll

Spanish (HS)

Checking the Contents of the Package

UL/CSA Standard
A1006WD

Rubber feet
B8080FR 4 feet

Soft case
B8059GG

Power cord (one cord that matches the suffix code is included)

VDE Standard
A1009WD

D

500-MHz passive probe
701939 4 probes

2

Panel sheet
One of the following:

Japanese (HJ)

F

BS Standard
A1054WD

Q

AS Standard
A1024WD

3

GB Standard
A1064WD

R

Front panel protection cover
B8069CH

Manuals

• Printed manuals • Manual CD

Chinese (HC)
German (HG)
French (HF)
Korean (HK)
Italian (HL)

1

NBR Standard
A1088WD

H

N

1 Make sure that the attached power cord meets the designated standards of the country and area that you

are using it in.
2 When using the optional built-in printer (/B5)
3 On models with the /E1 option, four 701939 passive probes are provided in addition to the four standard

701939 passive probes.
On models with the /E2 option, four 701946 miniature passive probes are provided instead of the four

standard 701939 passive probes.
On models with the /E3 option, eight 701946 miniature passive probes are provided instead of the four

standard 701939 passive probes.

IM DLM4038-03EN

v

Checking the Contents of the Package

Manual CD

The English folder in the manual CD contains the PDF files shown below. The CD also contains
Japanese manuals.

File Name Manual Title Manual No.

Communication Interface.pdf DLM4000 Series Mixed Signal Oscilloscope

Features Guide&Users Manual.pdf DLM4000 Series Mixed Signal Oscilloscope

Getting Started Guide.pdf DLM4000 Series Mixed Signal Oscilloscope

To view the PDF files above, you need Adobe Reader.

WARNING

Never play this manual CD, which contains the user’s manuals, in an audio CD player.
Doing so may cause loss of hearing or speaker damage due to the large sounds that may be
produced.

French

Communication Interface User’s Manual

Features Guide
DLM4000 Series Mixed Signal Oscilloscope
User’s Manual

Getting Started Guide

IM DLM4038-17EN

IM DLM4038-01EN

IM DLM4038-02EN

IM DLM4038-03EN

AVERTISSEMENT

Ce CD contient les manuels d’utilisation. Ne jamais insérer ce CD dans un lecteur de CD
audio. Cela pourrait entraîner une perte d’audition ou l’endommagement des enceintes en
raison du volume potentiellement élevé des sons produits.

Optional Accessories (Sold separately)

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

• Use the accessories specified in this manual. Moreover, use the accessories of this product only
with Yokogawa products that specify them as accessories.

• Use the accessories of this product within the rated range of each accessory. When using several
accessories together, use them within the specification range of the accessory with the lowest
rating.

Item

PBDH1000 differential probe with
YOKOGAWA probe interface
PBDH0150 differential probe with
YOKOGAWA probe interface
PBC100 current probe with
YOKOGAWA probe interface
PBC050 current probe with
YOKOGAWA probe interface
Passive probe 701939 1 DC to 500 MHz bandwidth, 10 MΩ IM 701939-01E
Miniature passive probe 701946 1 DC to 500 MHz bandwidth, 10 MΩ IM 701946-01EN

Passive probe (wide temperature
range)

PBL100 logic probe 701988 1 100 MHz toggle frequency, 1 MΩ IM 701988-01E
PBL250 logic probe 701989 1 250 MHz toggle frequency, 100 kΩ IM 701989-01E

Model/
Part No.

701924 1

701927 1

701928 1

701929 1

702906 1

Min.

Specifications Manual No.

Q’ty

DC to 1 GHz bandwidth, 1 MΩ,
±35 V maximum
DC to 150 MHz bandwidth,
±1400 V maximum
DC to 100 MHz bandwidth,
30 Arms
DC to 50 MHz bandwidth,
30 Arms

DC to 200 MHz bandwidth, 10 MΩ,
operating temperature range:

-

40°C to +85°C (excluding the phase

adjustment side)

IM 701924-01E

IM 701927-01EN

IM 701928-01E

IM 702906-01EN

vi

IM DLM4038-03EN

Checking the Contents of the Package

Item

100:1 high-voltage passive probe

FET probe* 700939 1 DC to 900 MHz bandwidth, 2.5 MΩ, 1.8 pF IM 700939-01E

Differential probe*

Current probe*

PBL500 5 GHz low capacitance
probe

Deskew signal source 701936 1

Mini clip adapter 700971 1 set For 701939 passive probes —
BNC adapter 700972 1 — —
Logic probe accessory kit 701909 1 set For the 701989 —
Probe stand 701919 1 — IM 701919-01E
PCB adapter 366945 1 set For 701939 passive probes —
Solder-in adapter 366946 1 set For 701939 passive probes —
GO/NO-GO cable 366973 1 — —

Soft carrying case 701968 1

Rack mount kit

Model/
Part No.

701944 1

701945 1

700924 1

700925 1

701920 1

701921 1

701922 1

701926 1

701917 1 DC to 50 MHz bandwidth, 5 Arms IM 701917-01EN
701918 1 DC to 120 MHz bandwidth, 5 Arms IM 701917-01EN
701930 1 DC to 10 MHz bandwidth, 150 Arms IM 701930-01E
701931 1 DC to 2 MHz bandwidth, 500 Arms IM 701931-01E
701932 1 DC to 100 MHz bandwidth, 30 Arms IM 701932-01E
701933 1 DC to 50 MHz bandwidth, 30 Arms IM 701933-01E

701974 1 — IM 701974-01E

701969-E 1 EIA standard IM 701969-02EN
701969-J 1 JIS standard IM 701969-01EN

Min.

Specifications Manual No.

Q’ty

DC to 400 MHz bandwidth, 1000 Vrms,

1.2 m in length
DC to 250 MHz bandwidth, 1000 Vrms,
3m in length

DC to 100 MHz bandwidth,
±1400 V maximum
DC to 15 MHz bandwidth,
±500 V maximum
DC to 500 MHz bandwidth,
±30 V maximum (common-mode input)
DC to 100 MHz bandwidth,
±700 V maximum
DC to 200 MHz bandwidth,
±60V maximum (common-mode input)
DC to 50 MHz bandwidth,
7000 V maximum (common-mode input)

Approx. 0 to 5 V, approx. 0 to 100 mA,
approx. 0 to 1 A, approx. 15 kHz

For the DLM4000 series,
shoulder type, three pockets

IM 701944-01E

IM 700924-01E

IM 700925-01E

IM 701920-01E

IM 701921-01E

IM 701922-01E

IM 701926-01E

IM 701936-01EN

—

Optional accessories (sold separately) are not covered by warranty of this instrument.
* Used by connecting to a probe power terminal (/P8 option) or a probe power supply (701934; sold

separately).

Spare Parts (Sold Separately)

IM DLM4038-03EN

The spare parts below are available for purchase separately. Check that all contents are present and
undamaged.
For information about ordering spare parts, contact your nearest YOKOGAWA dealer.

Name Part No. Minimum Q’ty Note

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

vii

Safety Precautions

This product is designed to be used by a person with specialized knowledge.
This instrument is an IEC safety class I instrument (provided with a 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.
This manual is part of the product and contains important information. Store this manual in a safe place
close to the instrument so that you can refer to it immediately. Keep this manual until you dispose of
the instrument.
YOKOGAWA 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.

Ground (earth) or functional ground terminal (do not use this terminal as a protective ground

terminal.)

Alternating current

Direct current

On (power)

Off (power)

French

Avertissement : À manipuler délicatement. Toujours se reporter aux manuels d’utilisation et

d’entretien. Ce symbole a été apposé aux endroits dangereux de l’instrument pour lesquels
des consignes spéciales d’utilisation ou de manipulation ont été émises. Le même symbole
apparaît à l’endroit correspondant du manuel pour identifier les consignes qui s’y rapportent.

Borne de terre ou borne de terre fonctionnelle (ne pas utiliser cette borne comme prise de

terre.)

Courant alternatif

Courant direct

viii

Marche (alimentation)

Arrêt (alimentation)

IM DLM4038-03EN

Safety Precautions

Failure to comply with the precautions below could lead to injury
or death or damage to the instrument.

WARNING

Use the Instrument Only for Its Intended Purpose

This instrument is a waveform measuring device that monitors and measures electrical
signals. Do not use this instrument for anything other than as a waveform measuring device.

Check the Physical Appearance

Do not use the instrument if there is a problem with its physical appearance.

Use the Correct Power Supply

Before connecting the power cord, ensure that the source voltage matches the rated supply
voltage of the DLM4000 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. Additionally, do not use the power cord supplied with this instrument with another
instrument.

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-prong type power cord.
Connect the power cord to a properly grounded three-prong 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 may result in electric shock or damage to the instrument.

Do Not Use When the Protection Functions Are Defective

Before using this instrument, check that the protection functions, such as the protective
grounding and fuse, are working properly. If you suspect a defect, do not use the instrument.

Do Not Operate in an Explosive Atmosphere

Do not operate the instrument in the presence of flammable gasses or vapors. Doing so is
extremely dangerous.

Do Not Remove the Covers or Disassemble or Alter the Instrument

Only qualified YOKOGAWA personnel may remove the covers and disassemble or alter the
instrument. The inside of the instrument is dangerous because parts of it have high voltages.

Ground the Instrument before Making External Connections

Securely connect the protective grounding before connecting to the item under measurement
or to an external control unit. Before touching a circuit, turn off its power and check that it has
no voltage. 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.

IM DLM4038-03EN

ix

Safety Precautions

CAUTION

Measurement Category

The measurement category of the DLM4000 signal input terminals is Other (O). Do not use it
to measure the main power supply or for Measurement Categories II, III, and IV.

Install or Use the Instrument in Appropriate Locations

• Do not install or use the instrument outdoors or in locations subject to rain or water.

• Install the instrument so that you can immediately remove the power cord if an abnormal or
dangerous condition occurs.

Accessories

Use the accessories specified in this manual. Moreover, use the accessories of this product
only with Yokogawa products that specify them as accessories.
Do not use faulty accessories.

Operating Environment Limitations

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.

French

AVERTISSEMENT

Utiliser l’instrument aux seules fins pour lesquelles il est prévu

Cet instrument est un appareil de mesure de forme d’onde pour le contrôle et la mesure des
signaux électriques. Ne pas utiliser cet instrument à d’autres fins que celles de mesure de
forme d’onde.

Inspecter l’apparence physique

Ne pas utiliser l’instrument si son intégrité physique semble être compromise.

Vérifier l’alimentation

Avant de brancher le cordon d’alimentation, vérifier que la tension source correspond à
la tension d’alimentation nominale du DLM4000 et qu’elle est compatible avec la tension
nominale maximale du cordon d’alimentation.

Utiliser le cordon d’alimentation et la fiche adaptés

Pour éviter les risques de choc électrique ou d’incendie, utilisez le cordon d’alimentation fourni
par YOKOGAWA. La fiche doit être branchée sur une prise secteur raccordée à la terre. En
cas d’utilisation d’une rallonge, celle-ci doit être impérativement reliée à la terre. Par ailleurs,
n’utilisez pas le cordon d’alimentation fourni pour cet instrument avec un autre appareil.

Brancher la prise de terre

Avant de mettre l’instrument sous tension, penser à brancher la prise de terre pour éviter tout
choc électrique. Le cordon d’alimentation livré avec l’instrument est doté de trois broches.
Brancher le cordon d’alimentation sur une prise de courant à trois plots et mise à la terre.

x

IM DLM4038-03EN

Safety Precautions

Ne pas entraver la mise à la terre de protection

Ne jamais neutraliser le fil de terre interne ou externe, ni débrancher la borne de mise à la
terre. Cela pourrait entraîner un choc électrique ou endommager l’instrument.

Ne pas utiliser lorsque les fonctions de protection sont défectueuses

Avant d’utiliser l’instrument, vérifier que les fonctions de protection, telles que le raccordement
à la terre et le fusible, fonctionnent correctement. En cas de dysfonctionnement possible, ne
pas utiliser l’instrument.

Ne pas utiliser dans un environnement explosif

Ne pas utiliser l’instrument en présence de gaz ou de vapeurs inflammables. Cela pourrait
être extrêmement dangereux.

Ne pas retirer le capot, ni démonter ou modifier l’instrument

Seul le personnel YOKOGAWA qualifié est habilité à retirer le capot et à démonter ou modifier
l’instrument. Certains composants à l’intérieur de l’instrument sont à haute tension et par
conséquent, représentent un danger.

Relier l’instrument à la terre avant de le brancher sur des connexions externes

Toujours relier l’instrument à la terre avant de le brancher aux appareils à mesurer ou à une
commande externe. Avant de toucher un circuit, mettre l’instrument hors tension et vérifier
l’absence de tension. Pour éviter tout risque de choc électrique, brancher la terre de la sonde
et du connecteur d’entrée sur la terre de l’appareil à mesurer.

Catégorie de mesure

La catégorie de mesure des terminaux d’entrée de signal du DLM4000 est Autre (O). Ne pas
l’utiliser pour mesurer l’alimentation électrique, ni pour les catégories de mesure II, III et IV.

Installer et utiliser l’instrument aux emplacements appropriés

• Ne pas installer, ni utiliser l’instrument à l’extérieur ou dans des lieux exposés à la pluie ou
à l’eau.

• Installer l’instrument de manière à pourvoir immédiatement le débrancher du secteur en
cas de fonctionnement anormal ou dangereux.

Accessoires

Utiliser les accessoires spécifiés dans ce manuel. En outre, utiliser les accessoires de ce
produit uniquement avec des produits Yokogawa pour lesquels ils sont spécifiés comme
accessoires.
Ne pas utiliser d’accessoires défectueux.

ATTENTION

Limitations relatives à l’environnement opérationnel

Ce produit est un produit de classe A (pour environnements industriels). L’utilisation de ce
produit dans un zone résidentielle peut entraîner une interférence radio que l’utilisateur sera
tenu de rectifier.

IM DLM4038-03EN

xi

Sales in Each Country or Region

Waste Electrical and Electronic Equipment

Waste Electrical and Electronic Equipment (WEEE), Directive

(This directive is valid only in the EU.)
This product complies with the WEEE directive 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, this product is classified as a

“Monitoring and control instruments” product.

When disposing of products in the EU, contact your local Yokogawa Europe B.V. office.
Do not dispose in domestic household waste.

EU Battery Directive

EU Battery Directive

(This directive is valid only in the EU.)

Batteries are included in this product. This marking indicates they shall be sorted out and

collected as ordained in the EU battery directive.

Battery type: Lithium battery

You cannot replace batteries by yourself. When you need to replace batteries, contact your

local Yokogawa Europe B.V. office.

Authorized Representative in the EEA

Yokogawa Europe B.V. is the authorized representative of Yokogawa Test & Measurement Corporation
for this product in the EEA. To contact Yokogawa Europe B.V., see the separate list of worldwide
contacts, PIM 113-01Z2.

xii

IM DLM4038-03EN

Conventions Used in This Manual

Unit

k: Denotes 1000. Example: 100 kS/s (sample rate)
K: Denotes 1024. Example: 720 KB (file size)

Displayed Characters

Bold characters in procedural explanations are used to indicate panel keys and soft keys that are used
in the procedure and menu items that appear on the screen.

Notes

The notes and cautions in this manual are categorized using the following symbols.

WARNING

CAUTION

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.”

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 attention 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.

French

AVERTISSEMENT

ATTENTION

Attire l’attention sur des gestes ou des conditions susceptibles de

Attire l’attention sur des gestes ou des conditions susceptibles

de provoquer des blessures graves (voire mortelles), et sur les
précautions de sécurité pouvant prévenir de tels accidents.

provoquer des blessures légères ou d’endommager l’instrument ou les
données de l’utilisateur, et sur les précautions de sécurité susceptibles
de prévenir de tels accidents.

IM DLM4038-03EN

Calls attention to information that is important for proper operation of the

Note

instrument.

xiii

Contents

List of Manuals ...................................................................................................................................i

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

Safety Precautions
Sales in Each Country or Region
Conventions Used in This Manual

Chapter 1 Component Names and Functions

1.1 Top Panel, Front Panel, Right Side Panel, Left Side Panel, and Rear Panel ................... 1-1

1.2 Keys and Knobs ............................................................................................................... 1-4

1.3 Screens ...........................................................................................................................1-11

Chapter 2 Making Preparations for Measurements

2.1 Handling Precautions ....................................................................................................... 2-1

2.2 Installing the Instrument ................................................................................................... 2-3

2.3 Connecting the Power Supply and Turning the Power Switch On and Off ....................... 2-6

2.4 Connecting Probes ........................................................................................................... 2-9

2.5 Correcting a Probe Phase .............................................................................................. 2-14

2.6 Connecting Logic Probes ............................................................................................... 2-16

2.7 Attaching the Panel Sheet .............................................................................................. 2-18

2.8 Loading Roll Paper into the Built-In Printer (Option) ...................................................... 2-19

......................................................................................................................... viii

.................................................................................................... xii

................................................................................................. xiii

Chapter 3 Common Operations

3.1 Key and Jog Shuttle Operations ....................................................................................... 3-1

3.2 Entering Values and Strings ............................................................................................. 3-3

3.3 Using USB Keyboards and Mouse Devices ..................................................................... 3-5

3.4 Synchronizing the Clock ..................................................................................................3-11

3.5 Performing Auto Setup ................................................................................................... 3-12

3.6 Resetting the DLM4000 to Its Factory Default Settings ................................................. 3-14

3.7 Calibrating the DLM4000 ................................................................................................ 3-15

3.8 Starting and Stopping Waveform Acquisition ................................................................. 3-16

3.9 Displaying Help .............................................................................................................. 3-17

Chapter 4 Rear Panel Input and Output

4.1 External Trigger Input (TRIGGER IN) .................................................................................4-1

4.2 Trigger Output (TRIGGER OUT) ...................................................................................... 4-2

4.3 Video Signal Output (VIDEO OUT (XGA)) ....................................................................... 4-4

4.4 GO/NO-GO Signal Output ................................................................................................ 4-5

Chapter 5 Troubleshooting, Maintenance, and Inspection

5.1 If a Problem Occurs .......................................................................................................... 5-1

5.2 Recommended Part Replacement ................................................................................... 5-2

xiv

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Contents

Chapter 6 Specifications

6.1 Signal Input Section ......................................................................................................... 6-1

6.2 Triggering Section ............................................................................................................ 6-4

6.3 Time Axis .......................................................................................................................... 6-8

6.4 Display .............................................................................................................................. 6-8

6.5 Features ........................................................................................................................... 6-9

6.6 Built-in Printer (/B5 Option) ............................................................................................ 6-16

6.7 Storage ........................................................................................................................... 6-16

6.8 USB Ports for Peripherals .............................................................................................. 6-16

6.9 Auxiliary I/O Section ....................................................................................................... 6-17

6.10 Computer Interface ......................................................................................................... 6-18

6.11 General Specifications ................................................................................................... 6-19

6.12 External Dimensions ...................................................................................................... 6-22

Appendix

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

Appendix 2 USB Keyboard Key Assignments ..................................................................... App-11

1

2

3

4

5

6

App

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xv

Chapter 1 Component Names and Functions

Handle

Prints the display.

ESC key

Soft keys

Transmits phase compensation signals

for probes. Phase correction procedure

1 Analog signal input channel CH8 and 8-bit logic signal input port L cannot measure signals simultaneously.

2 Logic signal input ports LOGIC(A|B) are equipped on models with the /L16 option.

Power switch → Section 2.3

Connect a logic probe to this terminal to observe

1.1 Top Panel, Front Panel, Right Side Panel, Left Side Panel, and Rear Panel

Top Panel

Inlet holes

Built-in printer (option)

Front Panel

Use the soft keys to select items on the setup

menus that appear during configuration.

Use this key to clear soft key menus and pop-up menus.

1

Component Names and Functions

LCD

Description of the displayed

contents → Section 1.3

Signal input terminals - probe interface
terminals (CH1 to CH8)

Connect probes to these terminals to observe

analog signals. → Section 2.4

1

Logic signal input port LOGIC(L)

Connect a logic probe to this terminal to observe

8-bit logic signals. → Section 2.6

Jog shuttle

Use the jog shuttle to change values

and move cursors.

Turn the shuttle ring to vary the rate at

which values change. The rate is set
according to the shuttle ring angle.

Keys and knobs → Section 1.2

Probe compensation signal
output terminal (1 kHz/1 Vp-p)

→ Section 2.5

Functional ground terminal

When correcting a probe phase,
connect the probe’s ground wire to this

terminal.

USB ports for peripherals

Use these ports to connect a USB
keyboard, mouse, or storage device.
USB keyboard or mouse

1

Logic signal input ports LOGIC (A|B)

up to 16-bit logic signals. → Section 2.6

→ Section 3.3
USB storage → User’s Manual

2

The signal that corresponds to the key that is illuminated, either CH8 or L, can be measured.

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1-1

Use these terminals to supply power to a YOKOGAWA

1.1 Top Panel, Front Panel, Right Side Panel, Left Side Panel, and Rear Panel

Right Side Panel

Left Side Panel

Inlet holes

Inlet holes

8 probe power terminals (optional)

FET probe or current probe. → Section 2.4

Main power switch → Section 2.3

Power connector → Section 2.3

GP-IB connector

Use this connector to communicate with the DLM4000
through the GP-IB interface.

→ Communication Interface User’s Manual

1-2

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Inlet holes

Ethernet port

Stand → Section 2.2

1.1 Top Panel, Front Panel, Right Side Panel, Left Side Panel, and Rear Panel

Rear Panel

Use this port to connect the DLM4000 to a network.

→ Features Guide and Communication Interface User’s Manual

USB port for PCs

Use this port to connect the DLM4000 to a PC that has a USB port.

→ Communication Interface User’s Manual

Trigger output terminal

Use this terminal to transmit trigger signals. → Section 4.2

External trigger input terminal

Use this terminal to apply external trigger signals. → Section 4.1

Video signal output terminal

Use this terminal to view the DLM4000 display on an external display.

→ Section 4.3

GO/NO-GO output connector

This connector transmits GO/NO-GO result signals.

→ Section 4.4

Inlet holes

1

Component Names and Functions

Outlet holes

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1-3

1.2 Keys and Knobs

Vertical Axis

CH1 to CH8 Keys, L Key, and A|B Key (Option)

Display a menu for turning analog signal input channels on and off, for expanding and reducing the
vertical axis, and for setting the vertical position, coupling, probe type, offset voltage, bandwidth limit,
linear scaling, and waveform labels. Also, press any of these keys before pressing the SCALE or
POSITION knob to select which channel the SCALE knob will control. The LED between the SCALE

POSITION knobs illuminates in the color assigned to the selected channel (the color around the

and
CH key). Each CH key illuminates when its corresponding channel is being displayed.
Use the L key to configure the logic signal input port LOGIC(L). When you press the L key, it illuminates
(and the CH8 key light turns off), and you can configure the LOGIC(L) port. When you press the CH8
key next to the L key, the CH8 key illuminates (and the L key light turns off), and you can configure the
channel 8. The DLM4000 is designed so that you have to switch between setting channel 8 and the
logic channel.
Use the A|B key (/L16 option) to configure the logic signal input ports LOGIC(A|B). When you press
the A|B key, it illuminates, and you can configure the LOGIC(A|B) ports.

POSITION Knob (Vertical position knob)

Use the POSITION knob to move the display position (vertical position) of the input waveform along
the vertical axis. Before you turn this knob, press a key from CH1 to CH8 (L) to specify the waveform
whose position you want to adjust. This knob has a push switch. You can press the knob to reset the
display position to 0.00 div. You can use this knob in the same manner when you press the L key or
the A|B key (/L16 option).

SCALE Knob

Use this knob to set the vertical scale. Before you turn this knob, press a key from CH1 to CH8 (L)
to specify the waveform whose position you want to adjust. If you change the scale while signal
acquisition is stopped, the waveform is expanded or reduced vertically. If you restart signal acquisition,
the DLM4000 acquires signals using the new vertical scale. This knob has a push switch. You can
press the knob to switch the resolution. If you press the knob so that Fine illuminates, the resolution is
set to fine mode.
When you press the L key or the A|B key (/L16 option), you can use this knob to change the vertical
display size between three levels.

CH UTIL Key

Use this key to display or hide all input channels and ports, or to copy settings between analog signal
input channels.

1-4

Models with the /L16 option

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1.2 Keys and Knobs

Horizontal Axis

◄POSITION► Knob

Use this knob to move the trigger position. When you move the trigger position, the ratio of the
displayed data before the trigger point (the pre-trigger section) and the data after the trigger point (the
post-trigger point) changes. This knob has a push switch. You can press the knob to reset the trigger
position to 50%.

DELAY Key

When you press the DELAY key, the key illuminates. Then you can set the trigger delay using the ◄
POSITION► knob.
You can reset the trigger delay to its default value (0 s) by pressing the ◄POSITION► knob when the
DELAY key is illuminated.

TIME/DIV Knob

Use this knob to set the time-axis scale. If you change the scale while signal acquisition is stopped, the
waveform is expanded or reduced horizontally. If you restart signal acquisition, the DLM4000 acquires
signals using the new time-axis scale.

1

Component Names and Functions

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1-5

1.2 Keys and Knobs

Triggering

EDGE Key

Displays a menu for setting the edge trigger. When you press this key, the edge trigger is selected,
and the key illuminates.

ENHANCED Key

Displays a menu for setting the enhanced trigger. When you press this key, the enhanced trigger is
selected, and the key illuminates.

MODE Key

Displays a menu for selecting the trigger mode.

SHIFT+MODE (ACTION GO/NO-GO) Key

Press SHIFT and then press MODE to display an action-on-trigger menu or a GO/NO-GO menu.

B TRIG Key

Use this key to set trigger combinations with the Edge or Enhanced trigger and to set the trigger B
trigger type.

SHIFT+B TRIG (FORCE TRIG) Key

Press SHIFT and then press B TRIG to force the DLM4000 to trigger even when trigger conditions are
not met.

LEVEL Knob

Use this knob to set the trigger level. This knob has a push switch. You can press the knob to
automatically set the trigger level to the center of the waveform’s amplitude (50% of the amplitude).

TRIG’D Indicator

Illuminates when the DLM4000 triggers.

1-6

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1.2 Keys and Knobs

Waveform Acquisition and Display

AUTO SETUP Key

Automatically sets values that correspond to the input signal. UNDO appears in the menu, and you
can undo the settings made with this key.

DEFAULT SETUP Key

Restores each setting to its factory default value. UNDO appears in the menu, and you can undo the
settings made with this key.

ACQUIRE Key

Displays a menu for setting the signal acquisition mode.

RUN/STOP Key

Starts and stops signal acquisition according to the trigger mode. The key illuminates while the
DLM4000 is acquiring signals.

SINGLE Key

Acquires one waveform. In Average mode, the DLM4000 acquires one waveform that has been
obtained by linearly averaging waveforms for the specified number of times.

DISPLAY Key

Displays a menu for configuring the display.

SHIFT+DISPLAY (X-Y) Key

Press SHIFT and then press DISPLAY to display an X-Y display menu.

HISTORY ( ) Key

Displays a menu for displaying and searching the history waveforms.

1

Component Names and Functions

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1-7

1.2 Keys and Knobs

Zoom, Search, and Serial Bus

ZOOM1 and ZOOM2 Keys

Display a waveform zoom display menu. When a waveform zoom display is on, the corresponding
key illuminates. If ZOOM1 and ZOOM2 are both on, the ZOOM knob controls the magnification of the
zoom waveform whose corresponding key is illuminated brightly.

ZOOM Knob

When a zoom display is on, you can turn this knob to set the magnification of the horizontal axis of
the selected zoom display. Before turning this knob, press ZOOM1 or ZOOM2 to select the zoom
waveform whose magnification you want to control. This knob has a push switch. If you press the knob
so that Fine illuminates, the resolution is set to fine mode.

SEARCH Key

Displays a waveform search menu.

SHIFT+SEARCH (SERIAL BUS) Key

Press SHIFT and then press SEARCH to display a serial bus menu.

Analysis

CURSOR Key

Displays a menu for making cursor measurements.

MEASURE Key

Displays a menu for automated measurement of waveform parameters and for statistical processing.

ANALYSIS Key

Displays a waveform histogram display and an optional power supply analysis menu.

MATH/REF Key

Use this key to configure waveform computation and reference waveforms.

SHIFT+MATH/REF (FFT) Key

Press SHIFT and then press MATH/REF to display an FFT menu.

1-8

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1.2 Keys and Knobs

Screen Capture Printing and Data Storage

PRINT Key

Use this key to save and print screen capture data.

SHIFT+PRINT (MENU) Key

Displays a menu for printing screen captures to the built-in printer or a network printer or displays a
menu for saving screen capture data to a storage medium. There is an indicator next to the PRINT key
that shows whether printing or storage is enabled.

FILE Key

Displays a menu for saving various data to the internal memory and USB memory, loading data that
you have saved, and performing other file-related tasks.

UTILITY Key

Displays a menu for calibrating the DLM4000, connecting to a network or PC, running a self-test,
and setting the date and time, menu language, message language, click sound, LCD backlight, offset
cancel, and delay cancel.
You can also use this key to display system information (installed options and firmware version).

1

Component Names and Functions

Other Keys

SNAP SHOT ( ) Key

Retains the currently displayed waveforms on the screen in white (by default).

CLEAR TRACE ( ) Key

Clears the displayed waveforms. If you execute a clear trace operation during waveform acquisition,
the DLM4000 clears all the history waveforms that it has acquired and restarts waveform acquisition
from the first acquisition.

HELP ( ) Key

Press this key to display and hide the help window, which explains various features.

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1-9

1.2 Keys and Knobs

SHIFT Key

Press this key once to illuminate it and access the features that are written in purple below each key.
Press the key again to disable the shifted state.

Jog Shuttle

When configuring various settings, use the jog shuttle to set values, move cursors, and select items.
Turn the shuttle ring to vary the rate at which values change. The rate is set according to the shuttle
ring angle.

SET ( ) Key

Press this key to enter the menu item that you selected using the jog shuttle.
If there are two items on the jog shuttle setup menu, you can press the key to change the item that the
jog shuttle controls.
Move the SET key left and right to move the cursor between numeric digits.
Move the SET key up and down to increase and decrease a value. You can change the setting on a
dialog menu by moving the key up, down, left, and right.

RESET ( ) Key

Resets an entered value to its default value.

Soft Keys

Use these keys to select items on the setup menus that appear during configuration.

ESC Key

Use this key to close setup menus and dialog boxes and to return to the menu level above the current
one.

Notes about the Operation of Knobs with Push Switches

The following knobs have push switches: POSITION (vertical and horizontal), SCALE, LEVEL, and
ZOOM. Push the knobs straight. If you push a knob at an angle, it may not operate properly. If this
happens, push the knob straight one more time.

CAUTION

Do not push a knob sideways with strong force. If you do, the knob may break.

1-10

French

ATTENTION

Ne pas enfoncer les boutons latéralement en employant une force excessive. Cela pourrait
les endommager, voire les casser..

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1.3 Screens

Channel information

Normal Analog Signal Waveform Screen

1

Component Names and Functions

Vertical scale (SCALE), inupt coupling, computation, etc.

Waveform acquisition state
See the table below.

Number of waveform
acquisitions
See the table below.

Date and time

Trigger level mark

Waveform label

Indication when the vertical
position mark and the ground
level mark are in the same place

Vertical position mark

Type of window being displayed

Trigger position

Trigger point

Display record
length

Acquisition mode
See the table below.

Sampling mode and sample rate
See the table below.

Trigger type,
trigger slope,
trigger level, etc.

Trigger mode

TIME/DIV

Grid

Setup menu

Ground level mark

The display is inverted when
Invert is set to ON.

Waveform Acquisition States

Stopped Waveform acquisition is stopped.
Running Waveform acquisition is taking place.
Preview This state indication appears when waveform acquisition is stopped and a waveform acquisition

condition such as the vertical scale (SCALE), time-axis scale (TIME/DIV), or trigger has been
changed.

Number of Waveform Acquisitions

Number Indicates the number of waveform acquisitions. While the waveform acquisition state is “Running,”

the number increases up to the specified waveform acquisition count (ACQ Count).
Waiting for Trig. The DLM4000 is waiting to trigger. This indication blinks.
Pre trig. Data before the trigger point (the pre-trigger section) is being acquired.
Post trig. Data after the trigger point (the post-trigger section) is being acquired.

Acquisition Mode

Normal Normal mode
Norm:Hi-Res Normal mode with high resolution mode enabled
Envelope Envelope mode. This indication is the same whether or not high resolution mode is enabled.
Average Averaging mode
Avg:Hi-Res Averaging mode with high resolution mode enabled

Sampling Mode and Sample Rate

Number Real-time sampling mode. Only the sample rate is displayed.
“IntP” and a number Interpolation mode. The sample rate is displayed after “IntP.”
“Rep” and a number Repetitive sampling mode. The sample rate is displayed after “Rep.”

RESET key mark

Jog shuttle mark

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1-11

Displays the zoom position relative to the entire

Zoom position of Zoom1

time/div setting

Zoom2 time/div

Zoom1 time/div

1.3 Screens

Logic Signal Waveform Screen

Bus and bit labels

The bus and each bit are displayed starting from the top of
the screen in an order determined by the Bit Order setting.

Bus display

Individual bit display

Displays the logic signal in binary or hexadecimal

Displays each bit of the logic signal waveform

Screen Displaying Zoom Waveforms

waveform when normal waveforms are not displayed

Zoom1 zoom range
along the time axis

Zoom2 zoom range
along the time axis

Zoom1
Zoom2

Zoom position of Zoom2

1-12

Normal waveform
display area
(main window)

Zoom window
display area

Zoom1 window display area Zoom2 window display area

Normal
waveform

Normal
waveform
display record
length

setting

Zoom2 display
record length

setting

Zoom1 display
record length

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1.3 Screens

Screen Displaying Analysis Results

Normal waveform display area
(main window)

Waveform histogram

Display area for
statistical trends and
histograms

Statistics
histogram

1

Component Names and Functions

Measured
waveform
parameter
values
(statistics)

Cursor
measurement
values

If the setup menu is not displayed, the area at the bottom of the screen (the area outside of the
waveform and measured value display areas) shows measured waveform parameter values or cursor
measurement values.

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1-13

Chapter 2 Making Preparations for Measurements

1

2.1 Handling Precautions

Safety Precautions

If you are using this instrument for the first time, make sure to read “Safety Precautions” on pages viii
to xi.

Do Not Remove the Case

Do not remove the case from the instrument. Some parts of the instrument use high voltages and
are extremely dangerous. For internal inspection and adjustment, contact your nearest YOKOGAWA
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. Then, contact your nearest YOKOGAWA dealer.

Do Not Damage the Power Cord

Nothing should be placed on top of the power cord, and it should be kept away from any heat sources.
When removing the plug from the power outlet, do not pull on the cord. Pull from the plug. If the power
cord is damaged, contact your nearest YOKOGAWA dealer. Refer to page iv for the part number when
placing an order.

Operating Environment and Conditions

This instrument complies with the EMC standard under specific operating environment and operating
conditions. If the installation, wiring, and so on are not appropriate, the compliance conditions of the
EMC standard may not be met. In such cases, the user will be required to take appropriate measures.

2

Making Preparations for Measurements

General Handling Precautions

Do Not Place Objects on Top of the Instrument

Never place objects such as other instruments or objects that contain water on top of the instrument.
Doing so may damage the instrument.

Do Not Subject the Inputs to Mechanical Shock

Applying shock to the input connectors, probes, etc., can cause electrical noise to enter the instrument
through the signal lines.

Do Not Damage the LCD

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

Unplug during Extended Non-Use

Unplug the power cord from the outlet.

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2-1

2.1 Handling Precautions

When Carrying the Instrument

Remove the power cord and connecting cables. When carrying the instrument, either hold the handle
or hold the instrument with both hands as shown in the figure below.

WARNING

• When you hold or put away the handle, be careful not to get your hand caught between the
handle and the case.

• When you carry the instrument, be careful not to get your hand caught between the wall,
installation surface, or other objects and the instrument.

French

AVERTISSEMENT

• Lorsque vous attrapez ou rabattez la poignée, veillez à ne pas vous coincer la main entre
la poignée et l’instrument.

• Lorsque vous déplacez l’instrument, veillez à ne pas vous coincer la main entre l’instrument
et le mur, la surface d’installation ou tout autre objet.

When Cleaning the Instrument

When cleaning the case or the operation panel, first remove the power cord from the outlet, and then
wipe with a dry, soft, clean cloth. Do not use chemicals such as benzene or thinner. Doing so may
cause discoloring and deformation.

2-2

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1

2.2 Installing the Instrument

WARNING

• Do not install the instrument outdoors or in locations subject to rain or water.

• Install the instrument so that you can immediately remove the power cord if an abnormal or
dangerous condition occurs.

CAUTION

If you block the inlet or outlet holes on the DLM4000, the DLM4000 will become hot and may
break down.

French

AVERTISSEMENT

• Ne pas installer l’instrument à l’extérieur ou dans des lieux exposés à la pluie ou à l’eau.

• Installer l’instrument de manière à pourvoir immédiatement le débrancher du secteur en
cas de fonctionnement anormal ou dangereux.

2

Making Preparations for Measurements

ATTENTION

Ne pas boucher les orifices d’entrée ou de sortie du DLM4000 pour éviter toute surchauffe et
panne éventuelle.

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 (see page 2-5). The
printing quality may be hindered when the instrument is placed in an unstable or inclined place.

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2-3

2.2 Installing the Instrument

Well-Ventilated Location

Inlet holes are located on the top panel and the left and right side panels of the instrument. In addition,
there are outlet holes for the cooling fan on the rear panel. To prevent internal overheating, allow for
enough space around the instrument (see the figure below), and do not block the inlet and outlet holes.

10 cm or more

10 cm or
more

10 cm or
more

10 cm or
more

When connecting cables, allow for enough space, beyond the space shown in the figure above, to
carry out the procedure.

Ambient Temperature and Humidity

Use the instrument in the following environment.

Ambient temperature 5°C to 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 within the following ranges: 23 ± 5°C and
55 ± 10%RH.

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

Do Not Install the Instrument in the Following Places.

• In direct sunlight or near heat sources

• In an environment with excessive amounts of soot, steam, dust, or corrosive gas

• Near strong magnetic field sources

• Near high-voltage equipment or power lines

• In an environment that is subject to large levels of mechanical vibration

• On an unstable surface

• Outdoors or in locations subject to rain or water

2-4

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1

Installation Position

Tilted installationHorizontal installation

Place the instrument in a horizontal position or tilt it on its movable legs or stand. When you use the
movable legs or stand, push out until the legs or stand locks. To put away the stand, push it inward
while returning it to its original position.

2.2 Installing the Instrument

2

Making Preparations for Measurements

Movable
legs

WARNING

• When you handle the movable legs, be careful not to injure your hand with the leg edges.

• When you put away the movable legs or stand, be careful not to get your hand caught
between the movable legs or stand and the instrument.

• Handling the movable legs or stand without firmly supporting the instrument can be
dangerous. Please take the following precautions.

• Only handle the movable legs or stand when the instrument is on a stable surface.

• Do not handle the movable legs or stand when the instrument is tilted.

• Do not place the instrument in any position other than those shown in the above figures.
Also, do not stack the instrument.

French

AVERTISSEMENT

• Lorsque vous manipulez les pieds escamotables, veillez à ne pas vous blesser la main.

• Lorsque vous rangez les pieds ou le support escamotable, veillez à ne pas vous coincer la
main entre l’instrument et les pieds ou le support.

• Lorsque vous manipulez les pieds ou le support escamotable, soutenez toujours l’instrument
fermement. Prendre les précautions suivantes.

• Ne manipuler les pieds ou le support escamotable que lorsque l’instrument est placé sur

une surface stable.

• Ne pas manipuler les pieds ou le support escamotable lorsque l’instrument est incliné.

• Ne pas placer l’instrument dans des positions autres celles indiquées ci-dessus. Ne pas
empiler l’instrument.

Stand

Rubber Feet

You can attach rubber feet to the feet at the bottom of the instrument for when you use the instrument
in the first and second Installation positions from the left that are shown on the previous page. One set
of feet (four feet) comes with the instrument as a standard accessory.

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Rubber feet

Rubber foot

Rubber foot

2-5

2.3 Connecting the Power Supply and Turning the Power Switch On and Off

Before Connecting the Power Supply

Make sure to follow the warnings below when connecting the power supply. 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 DLM4000 and that it is within the maximum rated voltage of the provided
power cord.

• Connect the power cord after checking that the main power switch of the instrument is
turned off.

• To prevent electric shock or fire, be sure to use the power cord for the instrument that is
supplied by YOKOGAWA.

• Make sure to connect 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 ungrounded extension cord. If you do, the instrument will not be grounded.

• If an AC outlet that conforms to the supplied power cord is unavailable and you cannot
ground the instrument, do not use the instrument.

French

AVERTISSEMENT

• Avant de brancher le cordon d’alimentation, vérifier que la tension source correspond à
la tension d’alimentation nominale du DLM4000 et qu’elle est compatible avec la tension
nominale maximale du cordon d’alimentation.

• Brancher le cordon d’alimentation après avoir vérifié que l’interrupteur d’alimentation
principal de l’instrument est sur OFF.

• Pour éviter tout risque de choc électrique ou d’incendie, utiliser exclusivement le cordon
d’alimentation fourni par YOKOGAWA et prévu pour l’instrument.

• Relier l’instrument à la terre pour éviter tout risque de choc électrique. Brancher le cordon
d’alimentation sur une prise de courant à trois plots reliée à la terre.

• Toujours utiliser une rallonge avec broche de mise à la terre, à défaut de quoi l’instrument
ne serait pas relié à la terre.

• En l’absence de prise secteur conforme au cordon d’alimentation et dans l’impossibilité de
mettre l’instrument à la terre, ne pas utiliser l’instrument.

Connecting the Power Cord

2-6

Check that the main power switch on the right side panel of the instrument is turned off.

1.

Connect the power cord plug to the power connector on the right side panel.

2.

Connect the other end of the cord to an outlet that meets the following conditions. Use a

3.

grounded three-prong outlet.

Item

Rated supply voltage* 100 VAC to 240 VAC
Permitted supply voltage range 90 VAC to 264 VAC
Rated power supply frequency 50/60 Hz
Permitted supply frequency range 48 Hz to 63 Hz
Maximum power consumption Approx. 250 VA

* This instrument can use a 100 V or a 200 V power supply. The maximum rated voltage differs

according to the type of power cord. Before you use the instrument, check that the voltage supplied to
it is less than or equal to the maximum rated voltage of the power cord provided with it (see page iii for
the maximum voltage rating).

IM DLM4038-03EN

2.3 Connecting the Power Supply and Turning the Power Switch On and Off

1

Turning the Instrument On

Before Turning On the Power, Check That:

• The instrument is installed properly → Section 2.2, “Installing the Instrument”

• The power cord is connected properly → Previous page

Turning On the Main Power Switch

Flip the power switch on the right side panel to the ON ( | ) position.

1.

The front-panel power switch illuminates in red-orange.

Turning On the Power Switch

Press the power switch on the front panel.

2.

The power switch color will change from red-orange to green.

2

Making Preparations for Measurements

Note

If you turn off the main power switch while the front-panel power switch is turned on (while the power switch
is illuminated in green), you can start the instrument the next time by simply turning on the main power
switch. However, if you turn off the main power switch while the front-panel power switch is turned on, the
setup data immediately before the power switch is turned off will not be stored properly.

Operations Performed When the Power Is Turned On

When the power switch is turned on, a self-test and calibration start automatically. When the DLM4000
starts normally, the waveform display screen appears. Check that the DLM4000 has started normally
before you use it.

If the DLM4000 Does Not Start Normally When the Power Is Turned On

Turn off the power switch, and check the following items.

• Check that the power cord is securely connected.

• Check that the correct voltage is coming to the power outlet. → Page 2-6

• Initialize the settings to their factory defaults by turning on the power switch while holding down
the RESET key.

If the instrument still does not work properly, contact your nearest YOKOGAWA dealer for repairs.

IM DLM4038-03EN

Note

• After turning the power switch off, wait at least 10 seconds before you turn it on again.

• It takes approximately 10 seconds for the startup screen to appear.

2-7

2.3 Connecting the Power Supply and Turning the Power Switch On and Off

Turning the Instrument Off

CAUTION

Abruptly turning off the main power switch or unplugging the power cord while data is being
saved or the internal printer is printing may corrupt the media on which data is being saved or
damage the built-in printer. Also, the data being saved is not guaranteed. Always turn the main
power switch off after data has been saved.

French

ATTENTION

Mettre brutalement l’instrument hors tension ou débrancher le cordon d’alimentation pendant
l’enregistrement de données ou le fonctionnement de l’imprimante interne peut corrompre le
support d’enregistrement des données ou endommager l’imprimante intégrée. Les données
en cours d’enregistrement pourront également être perdues. Toujours mettre l’instrument hors
tension après que les données ont été enregistrées.

Turning Off the Power Switch

Press the power switch on the front panel.

1.

Turning Off the Main Power Switch

Check that the front-panel power switch changes from green to red-orange, and then flip the

2.

power switch on the right side panel to the OFF (○) position.

Operations Performed When the Power Is Turned Off

The settings immediately before the power switch is turned off are stored. Therefore, the next time the
power is turned on, waveforms are measured using those settings.

Note

If you turn off the main power switch on the right side panel while the power switch on the front panel is
turned on, the setup data immediately before the power switch is turned off will not be stored properly. The
next time you turn on the main power switch, the front-panel power switch automatically turns on, and the
instrument starts using the previous settings that were stored properly. When this occurs, a message appears
on the screen, but it does not mean that the instrument is broken. When turning the power off, turn off the
power switch on the front panel, and then turn off the main power switch on the right side panel.

To Make Accurate Measurements

• Allow the instrument to warm up for at least 30 minutes after turning on the power switch.

• After the instrument has warmed up, perform calibration.

• If auto calibration is set to ON, the DLM4000 will automatically perform calibration when you
perform one of the operations below if the following times have passed since the power was turned
on.
3 minutes, 10 minutes, 30 minutes, 1 hour, and each following hour

• When you change time/div during waveform acquisition (when the RUN/STOP key is illuminated)

• When you start waveform acquisition after stopping waveform acquisition (so that the RUN/

STOP key is not illuminated)

2-8

If calibration is executed while signals are being applied to the DLM4000, we recommend that you stop
signal application and recalibrate the DLM4000.

IM DLM4038-03EN

1

2.4 Connecting Probes

WARNING

• Always turn off the power of the device under measurement before connecting the device
under measurement to the instrument. It is extremely dangerous to connect or disconnect
a measuring lead while the device under measurement is on.

• Do not apply an input voltage that exceeds the maximum input voltage, withstand voltage,
or allowable surge voltage.

• To avoid electric shock, be sure to ground the instrument, and connect the ground of the
probe and input connector to the ground of the item being measured.

• Avoid continuous connections in environments in which a voltage surge may occur.

• If over-range is indicated, the DLM4000 may be receiving a voltage higher than the
observed waveform or measured waveform values.* To prevent electric shock, change
the vertical scale with the SCALE knob so that the entire amplitude of the waveform is
displayed within the waveform display area, and check the input voltage level.

* If the input coupling is set to AC, the over-range indicator may not be displayed. For details, see

section 1.1, “Setting the Input Coupling,” in the user’s manual, IM DLM4038-02EN.

2

Making Preparations for Measurements

CAUTION

• The probe interface terminals are located near the input terminals on this instrument. Do
not short the probe interface terminals. When you connect a probe, make sure to prevent
an excessive voltage caused by static electricity, etc., from being applied to the probe
interface terminal, as this may damage the terminal.

• The maximum input voltage for 1 MΩ input is 150 Vrms when the frequency is less than or

equal to 1 kHz. Applying a greater voltage may damage the input section. For frequencies
above 1 kHz, damage may occur even if the voltage is less than 150 Vrms.

• The maximum input voltage for 50 Ω input is 5 Vrms or 10 Vpeak. Applying a voltage

greater than either of these limits may damage the input section.

• For information about how to handle a probe, refer to the user’s manual that came with the
probe.

Over-range indication

IM DLM4038-03EN

2-9

2.4 Connecting Probes

French

AVERTISSEMENT

• Toujours mettre l’appareil à mesurer hors tension avant de le brancher sur l’instrument. Il

• Ne pas dépasser les valeurs maximales de tension d’entrée, de tension de maintien ou de

• Pour éviter tout risque de choc électrique, relier l’instrument à la terre et brancher la terre

• Éviter les connexions continues dans les environnements pouvant être soumis à

• En cas de dépassement, le DLM4000 risque de recevoir une tension supérieure à la forme

est extrêmement dangereux de brancher un câble de mesure lorsque l’appareil à mesurer
est sous tension.

surtension admissible.

de la sonde et du connecteur d’entrée sur la terre de l’appareil à mesurer.

surtension.

d’onde observée ou aux valeurs de forme d’onde mesurées.* Pour éviter tout risque de
choc électrique, modifier l’échelle de gain vertical à l’aide du bouton SCALE, de sorte
que l’amplitude entière de la forme d’onde s’affiche sur l’afficheur, et vérifier le niveau de
tension d’entrée.

* Si le couplage d’entrée est réglé sur courant alternatif (CA), l’indicateur de dépassement de plage

risque de ne pas s’afficher. Pour en savoir plus, voir la section 1.1 « Setting the Input Coupling » dans
le manuel d’utilisation IM DLM4038-02EN.

• Sur cet instrument, les bornes d’interface de sonde se situent à proximité des bornes
d’entrée. Ne pas court-circuiter les bornes d’interface de sonde. Lors du branchement d’une
sonde, éviter qu’une tension excessive, causée entre autre par l’électricité statique, ne soit
appliquée sur la borne d’interface de sonde, car cela pourrait l’endommager.

• La tension d’entrée maximale pour une entrée de 1 MΩ est de 150 Vrms lorsque la

fréquence est inférieure ou égale à 1 kHz. L’application d’une tension supérieure pourrait
endommager la section d’entrée. Si la fréquence est supérieure à 1 kHz, une tension
inférieure à 150 Vrms pourra tout de même endommager la section d’entrée.

• La tension d’entrée maximale pour une entrée de 50 Ω est de 5 Vrms ou 10 Vcrête.

L’application d’une tension supérieure à l’une de ces limites pourrait endommager la
section d’entrée.

• Pour toute information sur la manipulation de la sonde, se reporter au manuel d’utilisation
fourni avec la sonde.

Dépassement de plage

ATTENTION

2-10

IM DLM4038-03EN

1

Connecting Probes

Connect probes (or input cables such as BNC cables) to the input terminals on the bottom of the front

panel. The input impedance is 1 MΩ ± 1.0% and approximately 20 pF parallel or 50 Ω ± 1.0%.

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 2.5, “Correcting a Probe Phase.” If you don’t correct the probe phase, the
frequency characteristics will not be flat, and measurements will not be correct. Perform phase
correction on each channel to which a probe is to be connected.

• Please note that if the circuit being measured is directly connected to the instrument without the use
of a probe, correct measurements may not be possible because of the effect of the input impedance
of the instrument.

2.4 Connecting Probes

2

Making Preparations for Measurements

About Probes

Specifications, after Probe Phase Compensation, of the Standard
Accessory Probe (model 701939)

For details, see the manual that came with the probe.

Item Specification

Length of probe and cable 1.3 m
Input impedance 10 MΩ ± 2%
Input capacitance Approx. 10.5 pF
Attenuation ratio 10:1 ± 2%
Bandwidth DC to 500 MHz (not exceeding –3 dB)
Rise time 700 ps or less (typical*)
Maximum input voltage 600 V (DC + ACpeak) or 424 Vrms

* Typical values represent typical or average values. They are not strictly warranted.

Specifications, after Probe Phase Compensation, of the Optional
Accessory Probe (model 701946)

For details, see the manual that came with the probe.

Item Specification

Length of probe and cable 1.3 m
Input impedance 10 MΩ ± 1%
Input capacitance Approx. 9.5 pF
Attenuation ratio 10:1 ± 2%
Bandwidth DC to 500 MHz (not exceeding –3 dB)
Rise time 700 ps or less (typical*)
Maximum input voltage 400 Vrms

* Typical values represent typical or average values. They are not strictly warranted.

IM DLM4038-03EN

2-11

2.4 Connecting Probes

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

• When measuring a signal that includes 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 properly. Check the attenuation ratio
of the probe that you are using and set it properly.

Setting the Probe Attenuation Ratio or the Voltage-Current
Conversion Factor

When using a probe not supported by the probe interface connectors, set the instrument’s
attenuation ratio or voltage-current conversion factor to match the probe attenuation ratio or voltage­current conversion factor. If the instrument’s settings do not match the probe specifications, correct
measurement values will not be displayed.

Connecting a Probe Supported by the Probe Interface
Connectors

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

• You can execute automatic zero adjustment on a current probe that is compatible with the probe
interface connector.

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

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

If you are using a YOKOGAWA FET probe, current probe, differential probe, or deskew correction
signal source, use one of the probe power terminals (option) on the instrument’s right side panel as the
power supply.* For details on the connection procedure, see the manual that came with the product
that you want to use.

* For a list of probe and signal source models, see “Optional Accessories” on page vi.

CAUTION

Do not use the probe power terminals (option) on the instrument’s right side panel for
purposes other than supplying power to an FET probe, current probe, differential probe, or
deskew correction signal source. Also, be sure that the total current of the eight probe power
terminals and the eight probe interface terminals does not exceed 2.0 A for ±12 V or 1.6 A
for ±5 V. Otherwise, the instrument or a device connected to the probe power terminals may
break.

French

Ne pas utiliser les bornes d’alimentation de sonde (option) sur le volet droit de l’instrument
à d’autres fins que l’alimentation de la sonde FET, sonde de courant, sonde différentielle ou
source de signal de correction Deskew. Vérifier également que le courant total des huit bornes
d’alimentation de sonde et des huit bornes d’interface de sonde ne dépasse pas 2,0 A pour
±12 V ou 1,6 A pour ±5 V, car cela aurait pour effet d’endommager l’instrument ou l’appareil
connecté aux bornes d’alimentation de sonde.

ATTENTION

2-12

IM DLM4038-03EN

701932/701933 current probe(example of characteristics)

Measured current and current consumption of the

701931 current probe (example of characteristics)

Measured current and current consumption of the

Current consumption (mA)

Positive power supply, DC input

Current consumption (mA)

Positive power supply, DC input

Current consumption (mA)

2.4 Connecting Probes

1

Handling Precautions for the Probe Interface Terminals and
Probe Power Terminals

If you are connecting a YOKOGAWA FET probe, current probe, differential probe, or deskew correction
signal source to one of the probe power terminals (option) on the right side panel, be sure that the total
current of the eight probe power terminals and the eight probe interface terminals does not exceed 2.0
A for ±12 V or 1.6 A for ±5 V. Otherwise, the instrument’s operation may become unstable as a result
of the activation of the excessive current protection circuit of the power supply.

• The number of current probes (701932/701933) that can be used is limited by the measured current
(the current measured by the current probes). The characteristics of measured current versus
current consumption for the active probes that can be connected to the instrument are as follows.

2

Making Preparations for Measurements

600
500
400
300
200
100

0

-100

-200

-300

-400

-500

-600

-50 -40 -30 -20 -10 0 10 20 30 40 50

Measured current and current consumption of the
701928 current probe (example of characteristics)

600
500
400
300
200
100

0

-100

-200

-300

-400

-500

-600

-500 -400 -300 -200 -100 0 100 200 300 400 500

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

Measured current (A)

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

Measured current (A)

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

600
500
400
300
200
100

-100

-200

-300

-400

-500

-600

Current consumption (mA)

Negative power supply, AC (50 Hz) input

0

-50 -40 -30 -20 -10 0 10 20 30 40 50

Measured current (A)

701929 current probe (example of characteristics)

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

600
500
400
300
200
100

-100

-200

-300

-400

-500

-600

Negative power supply, AC (50 Hz) input

0

-50 -40 -30 -20 -10 0 10 20 30 40 50

Measured current (A)

Measured current and current consumption of the

• In calculations, take the maximum current consumption of an FET probe (700939) or differential
probe (700924, 700925, 701920, 701921, 701922, or 701926) to be 125 mA for both negative and
positive voltages. Take the maximum current consumption of a differential probe (701927) to be 50
mA for both negative and positive voltages.

IM DLM4038-03EN

2-13

2.5 Correcting a Probe Phase

Phase adjustment
hole

Before using a probe to make measurements, be sure to correct the probe phase.

CAUTION

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

French

Procedure

1.

2.

3.

4.

5.

ATTENTION

Ne pas appliquer de tension externe sur la borne de sortie de signal afin d’ajuster la
compensation de sonde. Cela pourrait endommager le circuit interne.

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 connect the ground wire to the functional ground terminal.

Perform auto setup according to the procedures given in section 3.5, “Performing Auto Setup.”

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

make the displayed waveform a correct rectangular wave.

Signal output terminal for
probe compensation
adjustment

2-14

Functional ground terminal

IM DLM4038-03EN

Explanation

Correct waveform Overcompensated (The

Undercompensated (The
gain in the high frequency

1

Necessity of Probe Phase Correction

The phase of each probe is already corrected so as to approximately match the input capacitance of
the oscilloscope that the probe is intended to be used with. However, the input resistance and input
capacitance each of the input channels of each individual oscilloscope vary. This results in a mismatch
in the voltage divider ratio between low and high frequency signals and causes uneven frequency
characteristics.
There is a variable capacitor for adjusting the division ratio (trimmer) for high frequency signals on
the probe. To correct the phase, you must adjust this trimmer so that flat frequency characteristics are
obtained.
Be sure to correct the phase of a probe that you are using for the first time.
Because the input capacitance varies on each channel, probe compensation is always 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

2.5 Correcting a Probe Phase

2

Making Preparations for Measurements

Differences in the Waveform Caused by the Phase Correction of
the Probe

gain in the high frequency
region is too high.)

region is too low.)

IM DLM4038-03EN

2-15

2.6 Connecting Logic Probes

WARNING

• Always turn off the power of the device under measurement before connecting the device
under measurement to the instrument.

• Do not apply an input voltage that exceeds the maximum input voltage.

• To avoid electric shock, be sure to ground the instrument, and connect the ground of the
probe and input connector to the ground of the item being measured.

CAUTION

• The maximum input voltage for the 701988 logic probe is ±42 V (DC + ACpeak) or 29
Vrms, and the maximum input voltage for the 701989 logic probe is ±40 V (DC + ACpeak)
or 28 Vrms. Applying a voltage greater than either of these limits may damage the logic
probe or the instrument. If the frequency is high, damage may occur even if the voltage is
below the values specified above. For information about derating based on frequency, see
the user’s manual of the logic probe that you are using.

• The eight input lines on the logic port have a common ground. In addition, the ground
for the instrument and the ground for the logic port is also a common ground. Do not
apply inputs that have different common voltages, as doing so may cause damage to the
instrument, the logic probe, or other connected instruments.

• For information about how to handle a logic probe, refer to the user’s manual that came
with the logic probe.

French

AVERTISSEMENT

• Toujours mettre l’appareil à mesurer hors tension avant de le brancher sur l’instrument.

• Ne pas dépasser les valeurs maximales de tension d’entrée.

• Pour éviter tout risque de choc électrique, relier l’instrument à la terre et brancher la terre
de la sonde et du connecteur d’entrée sur la terre de l’appareil à mesurer.

• La tension d’entrée maximale pour la sonde logique 701988 est ±42 V (c.c. + c.a.crête) ou
29 Vrms, et la tension d’entrée maximale pour la sonde logique 701989 est ±40 V (c.c. +
c.a.crête) ou 28 Vrms. L’application d’une tension supérieure à l’une de ces limites pourrait
endommager la sonde logique ou l’instrument. Si la fréquence est élevée, une tension
inférieure aux valeurs indiquées ci-dessus pourra tout de même causer des dégâts.
Pour toute information sur le déclassement basé sur la fréquence, se reporter au manuel
d’utilisation de la sonde logique utilisée.

• Les huit lignes d’entrée du port logique partagent la même terre. De plus, la terre de
l’instrument et la terre du port logique sont également partagées. Ne pas appliquer
des entrées qui ont des tensions communes différentes car cela pourrait endommager
l’instrument, la sonde logique ou tout autre appareil connecté.

• Pour toute information sur la manipulation de la sonde logique, se reporter au manuel
d’utilisation fourni avec la sonde logique.

ATTENTION

2-16

IM DLM4038-03EN

2.6 Connecting Logic Probes

Logic signal input ports

1

Logic Signal Input Port

Connect a logic probe (701988 or 701989) to a logic signal input port on the front panel.

LOGIC(L) port

(standard equipped)

About Logic Probes

The 701988 and 701989 logic probes are designed to be connected to the instrument’s logic signal
input port. Use an appropriate connection lead to connect to the point of measurement. Do not alter
the connection lead. Doing so may prevent the lead from satisfying the specifications.
The logic port has eight input terminals. You can set the threshold level in the instrument’s menu.
Recommended probes: 701988 and 701989

Logic Input Specifications When Used with the Instrument

The specifications of the 701988 and 701989 are as follows. For details, see page 6-3.

Item When using the 701988 When using the 701989

Maximum toggle frequency
Number of inputs 8
Maximum input voltage
Input range ±40 V ±6 V (around the threshold level)
Maximum sample rate 1.25 GS/s (interleave mode off)
Threshold level ±40 V (resolution: 0.05 V) ±6 V (resolution: 0.05 V)
Threshold accuracy
Minimum input voltage
Input impedance Approx. 1 MΩ, approx. 10 pF (typical)
Preset threshold levels CMOS (5 V) = 2.5 V, CMOS (3.3 V) = 1.65 V, CMOS (2.5 V) = 1.25 V,

1 Under standard operating conditions (see section 6.11) after warm-up
2 For frequencies up to 1 kHz
3 Typical values represent typical or average values. They are not guaranteed.

1

100 MHz 250 MHz

2

±42 V (DC + ACpeak) or 29 Vrms ±40 V (DC + ACpeak) or 28 Vrms

1

1

500 mVp-p 300 mVp-p

±(100 mV + 3% of setting)

3

Approx. 100 kΩ, approx. 3 pF (typical)

CMOS (1.8 V) = 0.9 V, and ECL = –1.3 V

LOGIC(A|B) ports

(equipped on models
with the /L16 option)

2

Making Preparations for Measurements

3

IM DLM4038-03EN

2-17

2.7 Attaching the Panel Sheet

Attach the supplied front panel sheet to the instrument as necessary. The front panel sheet that comes
with the instrument is determined by the instrument’s language code. You can attach the panel sheet
over the panel sheet that is affixed to the instrument when it is shipped from the factory.

Attaching the Panel Sheet

The front panel has six panel sheet hooks: two upper, two lower, one below the ZOOM knob, and one
under the LEVEL knob (which is under TRIGGER).

• Hook the panel sheet onto the two upper hooks.

• Then, bend the panel sheet slightly, and hook it to the two lower hooks.

• Hold down the parts of the panel sheet near the ZOOM and LEVEL knobs, and hook the panel
sheet to the hooks below the knobs.

Panel sheet
hook

2-18

IM DLM4038-03EN

2.8 Loading Roll Paper into the Built-In Printer

1

(Option)

This section explains how to load roll paper into the optional built-in printer.

Roll Paper for Printers

Only use roll paper specifically made for use with the DLM4000 series. The DLM4000 comes with
one set of roll paper included. Use this when you first load roll paper into the built-in printer. When you
require a new supply of roll paper, please contact your nearest YOKOGAWA dealer.

Part Number: B9988AE
Specifications: Heat sensitive paper, 10 m
Minimum Quantity: 10 rolls

Handling Roll Paper

The roll paper is made of heat sensitive paper that changes color thermochemically. Please read the
following points carefully.

Storage Precautions

The heat-sensitive paper changes color gradually at temperatures of approximately 70°C or higher.

The paper can be affected by heat, humidity, or chemicals, whether something has been recorded
on it or not. As such, please follow the guidelines listed below.

• Store the paper in a cool, dry, and dark place.

• Use the paper as quickly as possible after you break its protective seal.

• If you attach a plastic film that contains plasticizing material such as vinyl chloride film or
cellophane tape to the paper for a long time, the recorded sections will fade due to the effect of
the plasticizing material. Use a holder made of polypropylene to store the roll paper.

• When starching the record paper, do not use starches containing organic solvents such as
alcohol or ether. Doing so will change the paper’s color.

• We recommend that you make copies of the recordings if you intend to store them for a long
period of time. Because of the nature of heat-sensitive paper, the recorded sections may fade.

2

Making Preparations for Measurements

IM DLM4038-03EN

Handling Precautions

• Only use genuine, YOKOGAWA-supplied roll paper.

• If you touch the roll paper with sweaty hands, there is a chance that you will leave fingerprints on
the paper or smudge the recorded sections.

• If you rub the surface of the roll paper against something hard, there is a chance that the paper
will change color due to frictional heat.

• If the roll paper comes into contact with products such as chemicals or oil, there is a chance that
the paper will change color or that the recorded sections will disappear.

2-19

4.

1.

2.

3.

2.8 Loading Roll Paper Into the Built-In Printer (Option)

Attaching the Roll Paper

CAUTION

• Do not touch the print head. If you do, you may burn yourself.

• Do not touch the roll paper cutter section at the end of the printer cover. Doing so may
cause injury.

French

ATTENTION

• Ne pas toucher la tête d’impression. Vous pourriez vous brûler.

• Ne pas toucher la section du coupe-papier à l’extrémité du cache de l’imprimante. Vous
pourriez vous blesser.

Raise the handle.

Press the OPEN COVER button
to open the printer cover.

Printer cover

Set the roll paper with
the same orientation
as shown in the figure.

OPEN COVER
button

Roll paper cutter section

Print head

2-20

Align the ends of the roll paper with
the guides and set the roll in place.

Guides

5.

Close the cover, and press LOCK on the
center of the cover until you hear a click.

IM DLM4038-03EN

1

2

Chapter 3 Common Operations

CURSOR menu

Jog shuttle setting menu

MODE menu

MATH/REF menu

FFT menu

FFT menu

B

D

C

A

E

F

G

G

3.1 Key and Jog Shuttle Operations

Key Operations

How to Use Setup Menus That Appear When Keys Are Pressed

The operation after you press a key varies depending on the key that you press.

3

Common Operations

A: The selection switches each time you press the soft key.
B: A selection menu appears when you press the soft key.
Press the soft key that corresponds to the appropriate setting.
C: A dialog box or the keyboard appears when you press the soft key.
Use the jog shuttle and the SET key ( ) to configure the settings.
D: Pressing the soft key selects the item that you can control using the jog shuttle. The jog shuttle

setup menu, which appears at the bottom end of the setup menu, shows the selected item.
E: A related setup menu appears when you press the soft key.
F: Pressing a soft key selects the corresponding option in the soft key.
G: Selects which item to configure when configuring a feature that consists of multiple items that

operate with different settings, such as the Math1 to Math4 and FFT1 and FFT2 computation

features.

How to Display the Setup Menus That Are Written in Purple below
the Keys

In the explanations in this manual, “SHIFT+key name (written in purple)” is used to indicate the
following operation.

Press the

1.

Now you can select the setup menus written in purple below the keys.

Press the key that you want to display the setup menu of.

2.

SHIFT key. The SHIFT key illuminates to indicate that the keys are shifted.

ESC Key Operation

• If you press ESC when a setup menu or available options are displayed, the screen returns to the

menu level above the current one.

•

If you press ESC when the highest level menu is shown, the display changes as follows.

Operation of pressing ESC
1st time The setup menu disappears.
2nd time Measured values move outside the

3rd time The jog shuttle setting menu disappears.

When measured values are displayed When measured values are not displayed

waveform area.

From this point, the display position of

measured values switches between

outside the waveform area and inside the

area each time you press ESC.

The jog shuttle setting menu disappears.

Nothing changes from this point.

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3-1

3.1 Key and Jog Shuttle Operations

Default value

RESET key mark

Item under the control

SET key mark

RESET Key ( ) Operation

If you press RESET when you are using the jog shuttle
to set a value or select an item, the setting is reset to its
default value (depending on the operating state of the
DLM4000, the setting may not be reset).

SET Key ( ) Operations

The operation varies as indicated below depending on
what you are setting.

• When There Are Two Values to Set in the Jog
Shuttle Setup Menu

The setting that the jog shuttle sets switches each time you press the SET key.

• When the Jog Shuttle and SET Key Marks ( ) Are Displayed in the Setup Menu

Press SET to confirm the selected item.

• When You Are Setting a Value

Moving the SET key up or down moves the value up or down.
Moving the SET key to the left and right changes which digit to set.

• When Selecting the Item to Set

Moving the SET key up, down, left, and right moves the cursor.

of the jog shuttle

How to Enter Values in Setup Dialog Boxes

Use the keys to display the appropriate setup dialog box.

1.

Turn the

2.

the appropriate item.

Press the

3.

jog shuttle, or move the SET key (

SET key (

Selects the item that the cursor is on

). The operation varies depending on the selected item.

Switches the selected item
(Select , , or X.)

) up, down, left, or right to move the cursor to

Displays a selection menu

Selects or clears the check box

Displays a setup dialog box

3-2

How to Clear Setup Dialog Boxes

Press ESC to clear the setup dialog box from the screen.

Scroll Operation

If a vertical or horizontal scroll bar is shown on the screen, you can move the SET key up and down or
left and write to scroll.

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3.2 Entering Values and Strings

Entering Values

Using Dedicated Knobs

You can use the following dedicated knobs to enter values directly.

• POSITION knobs (VERTICAL)

• POSITION knobs (HORIZONTAL)

• SCALE knob (VERTICAL)

• TIME/DIV knob

• LEVEL knob (TRIGGER)

• ZOOM magnification knob

Using the Jog Shuttle

Select the appropriate item using the soft keys, and change the value using the jog shuttle and the
SET key. This manual sometimes describes this operation simply as “using the jog shuttle.”

Note

Some items that you can set using the jog shuttle are reset to their default values when you press the RESET

key.

3

Common Operations

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3.2 Entering Values and Strings

Deletes the previous

Press to select from character strings

Deletes the previous

Entering Character Strings

Use the keyboard that appears on the screen to enter character strings such as file names and
comments. Use the jog shuttle and the SET key to operate the keyboard and enter a character string.

you entered previously.

Aft er selecting a ch aract er
string by turning the jog shuttle
or moving the SET key up and
down, confirm your selection by
pressing t he SET key.

Character insertion position

Switches between
uppercase and
lowercase

Move the character
insertion position

character

character

Deletes all the
characters you have
entered

Confirms the
characters that you
have entered

How to Operate the Keyboard

After bringing up the keyboard, use the

1.

want to enter. You can also move the SET key up, down, left, and right to move the cursor.

Press the

2.

• If a character string has already been entered, use the

• Use the

• Use the

• Use the

• Use the

Repeat steps 1 and 2 to enter all of the characters in the string.

3.

Select on the keyboard to display a list of character strings that you have entered previously.
Use the jog shuttle to select a character string, and press SET to enter the selected character string.

Press the

4.

SET key to enter the selected character.

position you want to insert characters into.

CAPS soft key to switch between uppercase and lowercase.
Delete soft key to delete the character at the cursor.
BS soft key to delete the previous character.
Clear soft key to clear all the entered characters.

ENTER soft key, or move the cursor to Enter on the keyboard, and press SET to

confirm the character string and clear the keyboard.

jog shuttle to move the cursor to the character that you

arrow soft keys to move the cursor to the

3-4

Note

• @ cannot be entered consecutively.

• File names are not case-sensitive. Comments are case-sensitive. The following file names cannot be

used due to MS-DOS limitations:

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

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3.3 Using USB Keyboards and Mouse Devices

Connecting a USB Keyboard

You can connect a USB keyboard and use it to enter file names, comments, and other items.

Compatible Keyboards

You can use the following keyboards that conform to USB Human Interface Devices (HID) Class Ver. 1.1.

• When the USB keyboard language is English: 104 keyboards

• When the USB keyboard language is Japanese: 109 keyboards

Note

• Do not connect incompatible keyboards.

• The operation of USB keyboards that have USB hubs or mouse connectors is not guaranteed.

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

USB Ports for Peripherals

Connect a USB keyboard to one of the USB ports for peripherals on the front panel.

Connection Procedure

Connect a USB keyboard directly to the DLM4000 using a USB cable. You can connect or remove
the USB cable regardless of whether the DLM4000 power switch is on or off (hot-plugging is
supported). Connect the type A connector of the USB cable to the DLM4000, and connect the type B
connector to the keyboard. When the power switch is turned on, the keyboard is detected and enabled
approximately 6 seconds after it is connected.

Note

• Only connect compatible USB keyboards, mouse devices, and storage devices to the USB ports for
peripherals.

• Do not connect multiple keyboards. You can connect one keyboard and one mouse to the DLM4000.

• If you turn on the DLM4000 when there are USB devices connected to the USB ports for peripherals, the
USB devices or the DLM4000 may not operate properly. In such cases, turn off the DLM4000, disconnect
the USB devices, turn the DLM4000 back on, and then reconnect the USB devices. After turning off the
power, wait at least 10 seconds before you turn it back on.

• Do not connect and disconnect multiple USB devices repetitively. Wait for at least 10 seconds after you
connect or remove one USB device before you connect or remove another USB device.

• Do not remove USB cables during the time from when the DLM4000 is turned on until key operation
becomes available (approximately 20 seconds).

3

Common Operations

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Entering File Names, Comments, and Other Items

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

3-5

3.3 Using USB Keyboards and Mouse Devices

Using a USB Mouse

You can connect a USB mouse and use it to perform the same operations that you can perform with
the DLM4000 keys. Also, by clicking a setup menu or screen item, you can perform the same operation
that you can perform by pressing the corresponding item’s soft key or selecting the menu item and
pressing the SET key.

USB Ports for Peripherals

Connect a USB mouse to one of the USB ports for peripherals on the front panel of the DLM4000.

Compatible USB Mouse Devices

You can use mouse devices (with wheels) that are compliant with USB HID Class Version 1.1.

Note

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

• Some settings cannot be configured by a mouse without a wheel.

Connection Procedure

To connect a USB mouse to the DLM4000, use one of the USB ports for peripherals. You can connect
or disconnect a USB mouse at any time regardless of whether the DLM4000 power switch is on or
off (hot-plugging is supported). When the power switch is on, the mouse is detected approximately 6

seconds after it is connected, and the mouse pointer (

) appears.

Note

• Only connect compatible USB keyboards, mouse devices, and storage devices to the USB ports for
peripherals.

• Even though there are two USB ports for peripherals, do not connect two mouse devices to the DLM4000.

• If you turn on the DLM4000 when there are USB devices connected to the USB ports for peripherals, the
USB devices or the DLM4000 may not operate properly. In such cases, turn off the DLM4000, disconnect
the USB devices, turn the DLM4000 back on, and then reconnect the USB devices. After turning off the
power, wait at least 10 seconds before you turn it back on.

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Operating the DLM4000 Using a USB Mouse

Top menu

The setup menu that you select using the mouse appears.

Operations That Correspond to the Front Panel Keys (Top menu)

• Displaying the Top Menu

Right-click on the display. A menu of the DLM4000 front panel keys (the top menu) appears.

• Selecting an Item from the Top Menu

Click the item that you want to select. A setup menu that corresponds to the item that you

selected appears at the bottom of the display. The top menu disappears.

To display an item’s submenu, point to the item. To select an item on a submenu, click it, just as

you would to select an item on the top menu.

3.3 Using USB Keyboards and Mouse Devices

3

Common Operations

Right-click to display the top menu.

Submenu

Submenus appear for items that have them.

Pointer

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Note

The following keys are not displayed in the top menu:
ESC, RESET, and SET

3-7

Click in this area to select the item that you want to set with the jog shuttle.

Change the value by clicking and using the mouse wheel.

3.3 Using USB Keyboards and Mouse Devices

Setup Menu Operations (Same as soft key operations)

• Selecting a Setup Menu Item

Click the setup menu item that you want to select.
If a selection menu appears after you select an item, click the selection menu item that you want

to choose.

The operation varies as indicated below depending on the setup menu item.

Click in this area to display a selection menu.
Clicking the item that you want to select will confirm your selection.

Click in this area to display a selection menu.

• Specifying Values

The following description explains how to specify values for menu items that have a icon next

Click in this area to change the selected item.

Click in this area to display a dialog box or keyboard. To select an item and confirm your
selection, use the jog shuttle and the SET key, or use the mouse pointer.

to them.

• If there are two icons next to a single menu item, click on the item to select an item to
configure.

• To increase a value, rotate the mouse wheel back.

• To decrease a value, rotate the mouse wheel forward.

• To increase a value, move the pointer above the value so that the pointer becomes a , and
then click above the value.

• To decrease a value, move the pointer below the value so that the pointer becomes a , and
then click below the value.

• To move the digit cursor between digits, point to the left or right of the value you want to set so
that the pointer becomes a or a , and then click the point that you moved the pointer
to. The digit cursor will move one digit to the left or right each time you click.

• Clearing a Setup Menu or Setup Screen

To clear the menu, click outside of them.

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Selecting Check Boxes

To select an item, click it.

Click the item that you want to select.

To select an item, click it. A check mark appears next to the item that you selected. To clear an

item’s check box, click the item again.

Note

To close a dialog box, click outside of it.

Selecting a File, Folder, or Media Drive from a File List

Click on a file, folder (directory), or media drive to select it.
Rotate the mouse wheel to scroll through the file list.
To cancel your selection, click outside of the file list. The file list will close when you cancel your

selection.

3.3 Using USB Keyboards and Mouse Devices

3

Common Operations

Click the file, folder, or
media drive that you
want to select.

Scroll bar

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3.3 Using USB Keyboards and Mouse Devices

Set the vertical scale (V/div). Set time/div.

Starts and stops cursor measurement

When you click the execute button,
waveform acquisition starts and the
execute button changes to the stop
button.
When you click the stop button,
waveform acquisition stops and the
stop button changes to the execute
button.

When you click on the pencil tool button, the pointer takes on

or perform a menu operation, the lines and characters that

Setting the Vertical Scale (V/div) and Time/div

• Setting the Vertical Scale (V/div)

When the waveform of a channel whose voltage is being measured appears on the display,

move the pointer close to the V/div value. The pointer becomes a .

Rotate the mouse wheel forward to increase the V/div value, and rotate it back to decrease the

value.

• Setting Time/div

Move the pointer close to the time/div value that is displayed in the upper right of the screen. The

pointer becomes a .

Rotate the mouse wheel forward to increase the Time/div value, and rotate it back to decrease

the value.

Special USB Mouse Operations

When you use a USB mouse, the following buttons appear at the top of the screen. Click on the

buttons to perform the following operations.

Starts waveform acquisition

Buttons

Stops waveform acquisition

Displays and hides the Zoom1 window

Pencil tool

the shape of a pencil , and you can use the pointer as a
pencil tool. If you click the pencil tool button again, the pointer
will return to normal.

Pencil Tool

• By dragging the mouse, you can draw lines and characters

by freehand.

• You can use the pencil tool to perform menu operations too.

• When you change the pencil tool back to the normal pointer

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3.4 Synchronizing the Clock

This section explains how to set the DLM4000 clock, which is used to generate timestamps for
measured data and files. When the DLM4000 is shipped from the factory, it has a set date and time.
You must synchronize the clock before you start measurements.

Procedure

UTILITY System Configuration Menu

Press UTILITY, the System Configuration soft key, and then the Date/Time soft key to display the
following screen.

Explanation

Turning the Date and Time Display On and Off (Display)

Specify whether to display the date and time on the DLM4000 screen.

Setting the Display Format (Format)

Select the display format from one of the following options.

• Year/Month (numeric)/Day

• Day/Month (numeric)/Year

• Day-Month (English abbreviation)-Year (the lower two digits)

• Day Month (English abbreviation) Year

3

Common Operations

Turn the date and time display on or off.

Set the display format.

Set the date and time.

Set the time difference from Greenwich Mean Time.

Confirm the settings.

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Setting the Time Difference from Greenwich Mean Time (Time Diff.
GMT)

Set the time difference between the region where you are using the DLM4000 and Greenwich Mean
Time.
Selectable range: –12 hours 00 minutes to 13 hours 00 minutes
For example, Japan standard time is ahead of GMT by 9 hours.
In this case, next to Time Diff. GMT, set Hour to 9 and Minute to 00.

Checking the Standard Time

Using one of the methods below, check the standard time of the region where you are using the

DLM4000.

• Check the Date, Time, Language, and Regional Options on your PC.

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

Note

• The DLM4000 does not support Daylight Saving Time. To set the time to Daylight Saving Time, reset the

time difference from Greenwich Mean Time.

• Date and time settings are backed up using an internal lithium battery. They are retained even if the power

is turned off.

• The DLM4000 has leap-year information.

3-11

3.5 Performing Auto Setup

Procedure

Executing Auto Setup (AUTO SETUP)

AUTO SETUP key.

Undo soft key.

Undoing Auto Setup (Undo)

Explanation

The auto setup feature automatically sets the vertical scale (V/div), time/div, trigger level, and other
settings to the most suitable values for the input signals.

Center Position after the Execution of Auto Setup

The center position after you execute auto setup will be 0 V.

Source Channels

Auto setup is performed on all channels except the logic channel.
If the logic channel is selected (the L key is illuminated), auto setup is not performed on CH8.
Logic waveforms are displayed with the same settings that were used before you executed auto setup.

Press the

1.

Auto setup is executed, and an Undo menu item appears.

Press the

2.

The settings from immediately before the auto setup was executed will be restored.

Waveforms Displayed before the Execution of Auto Setup

When you execute auto setup, data in the acquisition memory is overwritten, and the waveforms that
were displayed before you executed auto setup are cleared.

Undoing Auto Setup

You can press the Undo soft key to restore the settings from immediately before the auto setup was
executed. You cannot undo auto setup if you switch to a different setup menu or clear the Undo menu
using the ESC key.

Signals That Auto Setup Can Be Applied To

Frequency: Approx. 50 Hz or higher
Absolute input voltage: Signals whose maximum value is approximately 20 mV (at 1:1 setting) or

more

Type: Simple, repeating signals

Note

• The auto setup feature may not work properly for signals that include a DC component or high-frequency
components.

• To measure serial bus signals, execute auto setup from the appropriate serial bus signal setup menu.

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3.5 Performing Auto Setup

Settings after the Execution of Auto Setup

CH1 to CH8 Settings

Vertical position (Position) 0.00 div
Input coupling (Coupling) DC
Bandwidth (Bandwidth) Full
Offset (Offset) 0.00 V
Inverted display (Invert) OFF

Acquisition Settings

Record length (Record Length) The same as the value used before you executed auto

setup.
However, if the record length is such that the DLM4000
can only acquire waveforms in Single mode, the record
length is set to the maximum record length at which

the DLM4000 can acquire waveforms repeatedly.
Acquisition mode (Mode) Normal
High resolution mode (Hi Resolution) OFF
Interleave (Interleave) OFF
Sampling mode (Sampling Mode) Interpolaion

Trigger Settings

Trigger type EDGE
Trigger mode (Trigger Mode) Auto
Trigger hold off (Hold Off) 20 ns
Trigger delay (Delay) 0.00000 s
Trigger position (Position) 50%
Trigger slope (Slope) Rising
Trigger coupling (Coupling) DC
HF rejection (HF Rejection) OFF
Noise rejection (Noise Rejection)

Window comparator (Window) OFF

Settings That Depend on the Input Signal

Display on/off (Display) On if the DLM4000 detects a voltage of ±20 mV (1:1)

or higher and off otherwise
Vertical scale (V/div) The DLM4000 selects the range with the highest

sensitivity that does not exceed ±3.5 div.
Trigger level (Trigger Level) Center
Trigger source (Trigger Source) The channel with the lowest frequency among the

signals whose amplitude (Max – Min) is at least 1 div
Time axis (Time/div) The fastest sweep range that allows at least two

periods of the fastest signal among the signals whose

amplitude is at least 1 div to be observed. The sweep

range must be at least 5 ms/div.

3

Common Operations

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The values of settings not listed here do not change.

3-13

3.6 Resetting the DLM4000 to Its Factory Default Settings

Procedure

Resetting the DLM4000 to Its Factory Default Settings (DEFAULT
SETUP)

Press the DEFAULT SETUP key.

1.

The DLM4000 is reset to its factory default settings.
An Undo menu item appears.

Undoing the Reset Operation (Undo)

Undo soft key.

Explanation

You can reset the DLM4000 settings to their factory default values. This feature is useful when you
want to cancel all of the settings that you have entered or when you want to redo measurement from
scratch.

Settings That Cannot Be Reset to Their Factory Default Values

• Date and time settings

• Communication settings

• Language settings

• Measured value font size setting

Press the

2.

The previous settings are restored.

Undoing the Reset Operation

If you reset the settings by mistake, you can press the Undo soft key to restore the previous settings.
However, you cannot undo the reset operation if you clear the Undo menu item by switching to a
different setup menu or pressing the ESC key.

To Reset All Settings to Their Factory Default Values

While holding down the RESET key ( ), turn the power switch on. All settings are reset to their
factory default values except the date and time settings (the display on/off setting will be reset) and the

setup data stored in internal memory.

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3.7 Calibrating the DLM4000

Turns auto calibration on and off

Procedure

UTILITY Calibration Menu

Press UTILITY and then press the Calibration soft key to display the following menu.

Executes calibration

3

Common Operations

Explanation

Calibration

Calibrates the following items. Execute calibration when you want to make accurate measurements.

• Vertical axis ground level and gain

• Trigger threshold level

• Measured time value for repetitive sampling

Note

Calibration is automatically performed for the settings listed above when the power switch is turned on.

Notes about Calibration

• Allow the DLM4000 to warm up for at least 30 minutes before you execute calibration. If you
execute calibration immediately after power-on, the calibrated values may drift due to temperature
changes or other environmental changes.

• Execute calibration in a stable temperature environment ranging from 5 to 40°C (23 ± 5°C
recommended).

• Do not apply signals when calibrating. Calibration may not be executed properly when input signals
are being applied to the DLM4000.

Auto Calibration (Auto Cal)

Auto calibration is executed when you perform one of the following operations and any of the time
periods listed below has elapsed since the power was turned on.
3 minutes, 10 minutes, 30 minutes, 1 hour, and each following hour

• When you change time/div during waveform acquisition (when the RUN/STOP key is illuminated)

• When you start waveform acquisition after stopping waveform acquisition (so that the RUN/STOP
key is not illuminated)

If calibration is executed while signals are being applied to the DLM4000, we recommend that you stop
signal application and recalibrate the DLM4000.

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3.8 Starting and Stopping Waveform Acquisition

Procedure

Starting and Stopping Waveform Acquisition (RUN/STOP)

Press the RUN/STOP key.

1.

• The RUN/STOP key illuminates, and waveform acquisition starts. The acquired waveforms are
displayed.

• If you set the record length to a value that allows only one waveform to be acquired, pressing the RUN/
STOP key will produce the same result as pressing the SINGLE key.

RUN/STOP key again.

acquisition. The SINGLE key light turns off.

Acquiring a Single Waveform (SINGLE)

Explanation

Press the

2.

The RUN/STOP key light turns off, and waveform acquisition stops.

Press the SINGLE key.

1.

• The SINGLE key illuminates, and waveform acquisition starts. The acquired waveform is displayed.

• The DLM4000 switches to Single mode and acquires a waveform.

• When the DLM4000 triggers, it acquires and displays only one waveform and then stops waveform

• To stop waveform acquisition, press the RUN/STOP key.

Waveform Acquisition and Indicators

• When the RUN/STOP key or SINGLE key is illuminated, the DLM4000 is acquiring waveforms.
“Running” appears in the upper left of the screen.

• When the RUN/STOP key or SINGLE key is not illuminated, waveform acquisition is stopped.
“Stopped” appears in the upper left of the screen.

DLM4000 Operation When the Acquisition Mode Is Set to
Averaging

• Averaging stops when you stop waveform acquisition.

• If you restart waveform acquisition again, averaging starts from the beginning.

Running and Stopping Operations during Accumulation

• Accumulation stops when you stop waveform acquisition.

• If you restart waveform acquisition, past waveforms are cleared, and accumulation starts over.

Note

• If you start waveform acquisition using RUN/STOP, past data stored in the acquisition memory is cleared.

• You can use the snapshot feature to retain the displayed waveform on the screen. This feature allows you
to retain the waveform that you have taken a snapshot of on the screen while the DLM4000 continues
signal acquisition.

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3.9 Displaying Help

Procedure

Displaying Help

Press the HELP key (?) to display help.
The table of contents and index appear in the left frame, and text appears in the right frame.

Switching between Frames

To switch to the frame that you want to scroll through or otherwise control, move the SET key ( ) left
and right.

Moving Cursors and Scrolling

To scroll through the screen or move the cursor in the table of contents or index, turn the jog shuttle.

Moving to a Link Destination

To move to a description that relates to blue text or to move from the table of contents or index to the
corresponding description, move the cursor to the appropriate blue text or item, and press the SET
key.

3

Common Operations

Displaying Panel Key Descriptions

With help displayed, press a panel key to display an explanation of the panel key.

Returning to the Previous Screen

To return to the previous screen, press the RESET key ( ).

Hiding Help

Press the HELP key (?) or ESC key while help is displayed to clear the help.

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Chapter 4 Rear Panel Input and Output

1

2

3

4.1 External Trigger Input (TRIGGER IN)

CAUTION

Only apply signals that meet the following specifications. Signals that do not meet the
specifications may damage the DLM4000, because of factors such as excessive voltage.

French

ATTENTION

N’appliquer que des signaux correspondant aux spécifications suivantes. Les autres signaux
pourraient endommager le DLM4000 en raison de divers facteurs, notamment la tension
excessive.

External Trigger Input Terminal

4

Rear Panel Input and Output

This terminal is used when an external signal is used as the trigger source.

Item Specifications

Connector type BNC
Maximum input voltage ±40 V (DC + ACpeak) or 28 Vrms when the frequency is 10 kHz or less
Input frequency bandwidth DC to 100 MHz
Input impedance Approx. 1 MΩ, approx. 20 pF
Input range ±2 V
Trigger sensitivity 0.1 Vp-p
Trigger level ±2 V. The resolution is 5 mV.

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4-1

4.2 Trigger Output (TRIGGER OUT)

Trigger occurrence

Trigger output
(negative logic)

Trigger signal

Low

(positive logic)

CAUTION

Do not short the TRIGGER OUT terminal or apply external voltage to it. Doing so may
damage the DLM4000.

French

ATTENTION

Ne pas court-circuiter la borne TRIGGER OUT et ne pas appliquer de tension de sortie. Cela
pourrait endommager le DLM4000.

Trigger Output Terminal

A 3.3 V CMOS level signal is output when the DLM4000 triggers. The signal level is normally high but
goes low when the DLM4000 triggers.

Item Specifications

Connector type BNC
Output level 3.3 V CMOS
Output impedance Approx. 50 Ω
Output logic

Output delay 50 ns or less
Output hold time For negative logic, the low level is 800 ns min. and the high level is 50 ns min.

Negative logic (

For positive logic, the high level is 800 ns min. and the low level is 50 ns min.

) and positive logic ( ) switchable

Output Timing

50 ns or less

High

Low

High

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3

Low Level and High Level Hold Times

Trigger output
(negative logic)

Trigger

Trigger

Waveform acquisition

4.2 Trigger Output (TRIGGER OUT)

occurrence

High

*3

Low

Pre-trigger time +
internal processing time

*1

(Post-trigger time + internal processing time)

Trigger Trigger

Pre

*2

Post Post Pre

occurrence

4

*1 High (high level)3 period: The sum of the pre-trigger time and the internal processing time.

The minimum period is 50 ns.

*2 Low (low level)3 period: The sum of the post-trigger time and the internal processing time.

The minimum period is 800 ns.

*3 When you select positive logic, the definitions of high and low given here are reversed.

Setting the Output Logic

You can set the output logic for the signal transmitted from the trigger output terminal.

UTILITY Preference Menu

Press UTILITY and then press the Preference soft key to display the following menu.

Rear Panel Input and Output

Set the output logic (Pos: positive logic or Neg: negative logic).

IM DLM4038-03EN

4-3

4.3 Video Signal Output (VIDEO OUT (XGA))

11

15

10

D-Sub 15-pin receptacle

CAUTION

• Only connect the DLM4000 to a monitor after turning both the DLM4000 and the monitor
off.

• Do not short the VIDEO OUT terminal or apply external voltage to it. Doing so may damage
the DLM4000.

French

ATTENTION

• Ne brancher le DLM4000 sur un moniteur qu’après avoir mis hors tension le DLM4000 et le
moniteur.

• Ne pas court-circuiter la borne VIDEO OUT et ne pas appliquer de tension de sortie. Cela
pourrait endommager le DLM4000.

Video Signal Output Terminal

6

1

5

You can use video signal output to display the DLM4000 screen on a monitor. Any multisync monitor
that supports XGA can be connected.

Pin No. Signal Name Specifications

1 Red 0.7 Vp-p
2 Green 0.7 Vp-p
3 Blue 0.7 Vp-p
4 −
5 GND
6 GND
7 GND
8 GND
9 −
10 GND
11 −
12 −
13 Horizontal sync signal

14 Vertical sync signal
15 −

Approximately 48.4 kHz, TTL negative logic (
Approximately 60 Hz, TTL negative logic (

)

)

Connecting to a Monitor

Turn off the DLM4000 and the monitor.

1.

Connect the DLM4000 and the monitor using an RGB cable.

2.

Turn on the DLM4000 and the monitor.

3.

4-4

Note

• An RGB video signal is always running through the VIDEO OUT terminal.

• The monitor display may flicker if you place the DLM4000 or some other device close to it.

• Depending on the type of monitor, parts of the DLM4000 display may be cut off.

IM DLM4038-03EN

1

2

3

4.4 GO/NO-GO Signal Output

the DLM4000

NOGO OUT

5 V

EXEC

NO-GO OUT

The signal remains low until the DLM4000 is ready to accept

that action is complete.

Output Connector

The connector uses an RJ-12 modular jack. Use a cable designed for GO/NO-GO determination, such
as optional accessory 366973.

Pinout

The pinout is as follows.

1

Connector on

Output Signal

NO-GO OUT Signal

When the determination result is NO-GO, the output signal level (the TTL level) temporarily changes

from high level to low level.

GO OUT Signal

When the determination result is GO, the output signal level (the TTL level) temporarily changes

from high level to low level.

Signal Output Circuit Diagram

6

Pin No. Signal Name Logic

1
2
3
4
5
6

NC (no connection)
NC (no connection)
GO OUT
NO-GO OUT
GND
NC (no connection)

4.7 kΩ

GO OUT

100 Ω

Negative logic
Negative logic

4

Rear Panel Input and Output

Output Timing

GO OUT

IM DLM4038-03EN

100 pF

5 µs or

Waveform
acquisition

Measurement Measurement

more

Result Result

Waveform
acquisition

the next measurement. If you have specified an action to
perform when conditions are true, this time is extended until

4-5

4.4 GO/NO-GO Signal Output

Connect to the GO/NO-GO output connector

Approx. 1.5 m

Process the wires at the end of
the stripped cable as necessary.

5

GND

Blue

Connecting to Other Instruments

CAUTION

• Do not apply external voltage to the NO-GO OUT and GO OUT output pins. Doing so may
damage the DLM4000.

• When connecting the GO/NO-GO determination signal output to another instrument, do
not connect the wrong signal pins. Doing so may damage the DLM4000 or the connected
instrument.

• Do not connect a USB cable to the GO/NO-GO output connector. Doing so may damage
the DLM4000.

French

ATTENTION

• Ne pas appliquer de tension externe aux broches de sortie NO-GO OUT et GO OUT. Cela
pourrait endommager le DLM4000.

• Lors de la connexion de la sortie de signal de détermination GO/NO-GO à un autre
instrument, veiller à ne pas connecter les mauvaises broches de signal. Cela pourrait
endommager le DLM4000 ou l’instrument connecté.

• Ne pas brancher de câble USB sur le connecteur de sortie GO/NO-GO. Cela pourrait
endommager le DLM4000.

When connecting to an external instrument, use a cable designed for GO/NO-GO determination, such
as optional accessory 366973.
Do not use a cable designed for GO/NO-GO determination (optional accessory 366973) for any
purpose other than performing GO/NO-GO determination with the DLM4000.

Specifications of the GO/NO-GO Cable (Optional accessory 366973)

on the rear panel of the DLM4000

6

1

RJ-12 modular jack

Colors
Yellow

White
Green

Pin No. Signal Name Logic

2 NC
3
4

GO OUT
NO-GO OUT

Negative logic
Negative logic

4-6

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4

Chapter 5 Troubleshooting, Maintenance, and Inspection

5.1 If a Problem Occurs

Faults and Corrective Actions

•

If a message appears on the screen, see section 20.1 in the user’s manual, IM DLM4038-02EN.

• If servicing is necessary, or if the instrument does not operate properly even after you have
attempted to deal with the problem according to the instructions in this section, contact your nearest
YOKOGAWA dealer.

Problems and Solutions Refer To

Section

The DLM4000 does not turn on.

Securely connect the power cord to the DLM4000 and to the power outlet. 2.3
Make sure that the power switch is on. 2.3
Set the supply voltage and frequency to within the permitted range. 2.3

Nothing is displayed.

Press any key to turn on the backlight. 4.4
Press the DEFAULT SETUP key to initialize the screen’s display colors. 3.6

The display is odd.

Confirm that the ambient temperature and humidity are within their specified ranges. 2.2
Confirm that the display is not being affected by noise. 2.1
Make sure that the probes are properly connected. 2.4
Restart the DLM4000. 2.3

Keys do not work.

When the DLM4000 is being controlled remotely through communication commands, press
SHIFT + CLEAR TRACE to switch it to local mode.
Perform a key test. If the test fails, servicing is required. 20.2

Triggering does not work.

Check the trigger conditions. Chapter 2
Confirm that the trigger source is being applied. 2.4, 2.6, 4.1

The measured values are not correct.

Confirm that the ambient temperature and humidity are within their specified ranges. 2.2
Allow the DLM4000 to warm up for at least 30 minutes after turning on the power switch. 2.3
Calibrate the DLM4000. 3.7
Correct the probe phase. 2.5
Set the correct probe attenuation ratio. 1.1
Set the offset voltage to 0 V. 1.1

The built-in printer isn’t printing.

The printer head may be damaged or worn out. Servicing is required. —

It takes time to save to or load from the internal memory.

The data area may be fragmented, or registered data from deleted files may have remained
in the memory. Format the internal memory. When the internal memory is formatted, all of its
data is lost. Back up the data as necessary.

Unable to save data to the specified storage medium.

Check the free space on the storage medium. Remove files or use a different storage medium
as necessary.

The USB devices or the DLM4000 do not operate properly

If you turn on the DLM4000 when there are USB devices connected to the USB ports for
peripherals, turn off the DLM4000, disconnect the USB devices, turn the DLM4000 back on,
and then reconnect the USB devices. After turning off the power, wait at least 10 seconds
before you turn it back on.

Unable to configure or control the instrument through the communication interface.

Check to make sure that the address setting. —
Match the address used in the program to the DLM4000 address.
Confirm that the interface meets the electrical and mechanical specifications.

1 See the user’s manual, IM DLM4038-02EN.
2 See the Communication Interface User’s Manual, IM DLM4038-17EN.

—

20.5

—

3.3

1

5

Troubleshooting, Maintenance, and Inspection

2

1

1

1

1

1

2

IM DLM4038-03EN

5-1

5.2 Recommended Part Replacement

The life and replacement period for expendable items varies depending on the conditions of use. Refer
to the table below as a general guideline.
For part replacement and purchase, contact your nearest YOKOGAWA dealer.

Parts with Limited Service Life

Part Name Service Life

Built-in printer Under normal conditions of use, equivalent of 360 rolls of printer paper (part number:

B9988AE)

LCD backlight Under normal conditions of use, approximately 25,000 hours

Consumable Parts

We recommend replacing them at the following intervals.

Part Name Recommended Replacement Interval

Cooling fan 3 years
Backup battery (lithium battery) 5 years

5-2

IM DLM4038-03EN

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2

3

4

5

Chapter 6 Specifications

6.1 Signal Input Section

Analog Signal Input

Item Specifications

Number of input channels 8 (CH1 to CH8)
Input coupling settings AC1MΩ, DC1MΩ, DC50Ω, GND
Input connector BNC connector
Input impedance 1 MΩ ± 1.0%, approx. 20 pF

50 Ω ±1.0% (VSWR1.4 or less at DC to 500 MHz)
Selectable voltage
sensitivity range
(vertical scale)
Maximum input voltage 1 MΩ input: 150 Vrms (At 100 kHz and higher, the voltage

Selectable maximum DC
offset range
(when the probe attenuation
is set to 1:1)

Vertical-axis (voltage-axis)
accuracy

DC accuracy
Offset voltage accuracy

Frequency bandwidth

(≥ –3 dB)

(±3 divp-p sine wave input)

–3 dB point for AC coupling 10 Hz or less (1 Hz or less when using the supplied 10:1 probe)
Skew between channels

(when channels are set
to the same conditions)
Residual noise level
Isolation between channels
(when set to the same
voltage sensitivity)
A/D converter resolution 8 bits (25 LSB/div)

Probe attenuation settings Voltage probe: 0.001:1 to 2000:1 (in 1-2-5 steps)

Bandwidth limit For each channel, can be set to FULL, 200 MHz, 100 MHz, 20 MHz, 10 MHz, 5 MHz, 2 MHz, 1

Maximum sample rate Real-time sampling mode. Values inside parentheses are for high resolution mode.

1

1, 2

3

1 MΩ input: 2 mV/div to 10 V/div (in 1-2-5 steps)

50 Ω input: 2 mV/div to 500 mV/div (in 1-2-5 steps)

decreases at 20 dB/decade down to 2.5 Vrms.)

50 Ω input: 5 Vrms or less and 10 Vpeak or less; neither

values may be exceeded.

1 MΩ input

2 mV/div to 50 mV/div: ±1 V
100 mV/div to 500 mV/div: ±10 V
1 V/div to 10 V/div: ±100 V

50 Ω input

2 mV/div to 50 mV/div: ±1 V
100 mV/div to 500 mV/div: ±5 V

1

2 mV/div to 50 mV/div: ±(1% of set value + 0.2 mV)

100 mV/div to 500 mV/div: ±(1% of set value + 2 mV)

1 V/div to 10 V/div: ±(1% of set value + 20 mV)

1 MΩ input (measured from the probe tip when

using the supplied 10:1 probe (10:1 conversion))

100 V/div to 100 mV/div: DC to 350 MHz DC to 500 MHz
50 mV/div to 20 mV/div: DC to 300 MHz DC to 400 MHz

50 Ω input

500 mV/div to 10 mV/div: DC to 350 MHz DC to 500 MHz
5 mV/div to 2 mV/div: DC to 300 MHz DC to 400 MHz

1 ns or less

0.4 mVrms or 0.05 div rms, whichever is greater (typical value4)

Maximum bandwidth: –34 dB (typical value

12 bits maximum (during high-resolution mode)

Current probe: 0.001A:1V to 2000A:1V (in 1-2-5 steps)

MHz, 500 kHz, 250 kHz, 125 kHz, 62.5 kHz, 32 kHz, 16 kHz, or 8 kHz.

Uses IIR and FIR digital filters

When interleave mode is on: 2.5 GS/s (1.25 GS/s)

When interleave mode is off: 1.25 GS/s (625 MS/s)
Repetitive sampling mode: 125 GS/s
Interpolation sampling mode: 125 GS/s

4

±(1.5% of 8 div + offset voltage accuracy)

DLM4038 DLM4058

)

2

6

Specifications

IM DLM4038-03EN

6-1

6.1 Signal Input Section

Item Specifications

Maximum record length Maximum record length for which repetitive acquisitions are possible

No options: 1.25 M points
On models with the /M1 option: 6.25 M points
On models with the /M2 option: 12.5 M points
On models with the /M3 option: 25 M points
Maximum record length for which a single acquisition is possible. Values inside parentheses apply
when interleave mode is on.
No options: 6.25 M points (12.5 M points)
On models with the /M1 option: 25 M points (62.5 M points)
On models with the /M2 option: 62.5 M points (125 M points)
On models with the /M3 option: 125 M points (250 M points)

1 Values emasured under standard operating conditions (see section 6.11 for details) after a 30-minute warm-up and calibration.
2 Values for repeating phenomena.
The single-shot frequency bandwidth is from DC to the sampling frequency/2.5 or is the frequency bandwidth of the repeating

phenomena, whichever is less.

3 Values when the input section is shorted, the acquisition mode is set to Normal, accumulation is set to off, and the probe

attenuation is set to 1:1.

4 Typical values represent typical or average values. They are not strictly warranted.

6-2

IM DLM4038-03EN

1

2

3

4

5

6.1 Signal Input Section

Logic Signal Input

Item Specifications

Usable probes 701988, 701989 (8-bit input)
Number of inputs Standard LOGIC(L) port: 8

LOGIC(A|B) ports on models with the /L16 option: 16 addtional bits
Nondestructive maximum input
voltage

Input range ±40 V Threshold level ± 6 V
Minimum input voltage 500 mVp-p 300 mVp-p
Maximum toggle frequency
Input impedance (typical value
Threshold level setting Same value for all 8 bits Different values for each of the 8 bits
Variable threshold level range ±40 V ±6 V
Threshold level resolution 0.05 V 0.05 V
Threshold level accuracy
Hysteresis voltage (typical value

Minimum pulse width 5 ns 2 ns
Maximum sample rate Real-time sampling mode. Values inside parentheses are for high resolution mode.

Maximum record length Maximum record length for which repetitive acquisitions are possible

1 Under standard operating conditions (see section 6.11 for details) after a 30-minute warm-up.
2 Typical values represent typical or average values. They are not strictly warranted.
3 Resolution only improves for analog waveforms.
4 If high resolution mode is off and the sample rate of analog channels is 2.5 GS/s, interpolation (sampling) mode is used.

1

1

701988: ±42 V (DC + ACpeak) or 29 Vrms

701989: ±40 V (DC + ACpeak) or 28 Vrms

For information about derating based on frequency, see the respective logic probe user’s

manual.

When using the 701988 When using the 701989

100 MHz 250 MHz

2

) 1 MΩ/approx. 10 pF Approx. 100 kΩ/approx. 3 pF

±(0.1 V + 3% of setting) ±(0.1 V + 3% of setting)

2

) 100 mV When noise rejection is off: 100 mV

When noise rejection is on: 250 mV

When interleave mode is on: LOGIC(L) port

Unable to acquire logic waveforms

LOGIC(A|B) ports

1.25 GS/s (1.25 GS/s)

When interleave mode is off: 1.25 GS/s (625 MS/s)
Repetitive sampling mode: 125 GS/s
Interpolation sampling mode: 125 GS/s

No options: 1.25 M points
On models with the /M1 option: 6.25 M points
On models with the /M2 option: 12.5 M points
On models with the /M3 option: 25 M points
Maximum record length for which a single acquisition is possible. Record lengths in
parentheses are available for the LOGIC(A|B) ports when interleave mode is on.
No options: 6.25 M points (12.5 M points)
On models with the /M1 option: 25 M points (62.5 M points)
On models with the /M2 option: 62.5 M points (125 M points)
On models with the /M3 option: 125 M points (250 M points)

4

3

6

Specifications

IM DLM4038-03EN

6-3

6.2 Triggering Section

Item Specifications

Triggered modes Auto, Auto Level, Normal, Single, N Single, Single

The DLM4000 measures in Single mode when you start acquisition by pressing the SINGLE key
or when you start acquisition by pressing the RUN/STOP key when the record length setting only
allows for single acquisition.

Trigger sources CH1 to CH8: Signals received through input terminals

LINE: The connected commercial power supply signal (only Edge trigger can be used)
EXT: The signal received through the TRIG IN terminal
LOGIC: Signals received through the logic signal input port terminals

Source bits: L0 to L7, A0 to A7

Trigger coupling CH1 to CH8: DC/AC

EXT: DC

HF rejection Trigger source bandwidth limit can be specified separately for CH1 to CH8.

OFF: No bandwidth limit
15 kHz: DC to approximately 15 kHz
20 MHz: DC to approximately 20 MHz

Noise rejection Noise rejection can be turned on or off (trigger level hysteresis can be selected) for CH1 to CH8

separately. Noise rejection cannot be specified on channels set to TV trigger.
OFF: Approximately 0.3 div of hysteresis
ON: Approximately 1.0 div of hysteresis

Selectable trigger level
range

CH1 to CH8: ±4 div from the screen center
EXT: ±2 V

Trigger level resolution CH1 to CH8: 0.01 div (0.1 div for TV triggers)

EXT: 5 mV

Trigger level accuracy CH1 to CH8:

EXT:

2

3

±(0.2 div + 10% of the trigger level)
±(50 mV + 10% of the trigger level)

Window comparator setting Window comparator can be turned on or off for CH1 to CH8 separately.

OFF: Normal comparator

Edge polarities: Rise and Fall. Qualifications: H, L, and X.

ON: Window comparator

Edge polarities: Enter and Exit. Qualifications: IN, OUT, and X.
Selectable window trigger
level range

Can be set separately for CH1 to CH8.
Center: ±4 div from the screen center

Width: ±4 div around the center
Window trigger level
accuracy

The following trigger level accuracy applies to the upper and lower limits of the window that are

specified using the Center and Width settings. The upper and lower limits are set separately for

CH1 to CH8.

±(0.2 div + 10% of the trigger level)
However, the accuracy does not apply to an upper or lower limit that falls outside ±4 div from the
screen center.

External trigger probe

1:1, 10:1

attenuation setting
Trigger sensitivity CH1 to CH8: 1 div

EXT: 100 mV

P-P

P-P

DC to the maximum bandwidth (with noise rejection set to off)

DC to 100 MHz
Trigger position Can be set as a percentage of the display record length in 0.1% steps
Selectable trigger delay

–(Time length of the post-trigger section) to +10 s
range
Selectable hold-off time

20 ns to 10 s
range

1 A0 to A7 and B0 to B7 are available on models with the /L16 option.
2 Values emasured under standard operating conditions (see section 6.11 for details) after a 30-minute warm-up and calibration.
3 Values measured under standard operating conditions (see section 6.11 for details) after a 30-minute warm-up.

1

, B0 to B7

1

6-4

IM DLM4038-03EN

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2

3

4

5

6.2 Triggering Section

Item Specifications

Trigger type (A trigger)

Edge: Triggers on the edge of a single trigger source

The source can be set to a signal from CH1 to CH8, LOGIC

Edge OR: Triggers when any of the edge trigger conditions of multiple trigger sources is met

Sources can be set to channels from CH1 to CH8.

Edge Qualified: Triggers on the edge of a single trigger source while qualifications are met

The source can be set to a signal from CH1 to CH8, LOGIC
Qualifications can be specified for CH1 to CH8 and LOGIC1.

State: Triggers when a pattern (conditions of signals) changes from met to not met or

from not met to met
A clock channel can be specified for determining whether the pattern has been
met or not met. No clock can also be selected.
Patterns can be combined using AND or OR.
The pattern signals and clock source can be set to a signal from CH1 to CH8 or

1

LOGIC

.

Pulse Width: Triggers on the width of a single trigger source

The source can be set to a signal from CH1 to CH8 or LOGIC
More than: Triggers when the time length during which the condition is met

is longer than Time1, and the condition changes to not met
Time1: 4 ns to 10 s in 2-ns steps

Less than: Triggers when the time length during which the condition is met

is shorter than Time1, and the condition changes to not met
Time1: 6 ns to 10 s in 2-ns steps

Between: Triggers when the time length during which the condition is met

is longer than Time1 but shorter than Time2 and the condition
changes to not met
Time1: 4 ns to (10 s – 4 ns) in 2-ns steps
Time2: 8 ns to 10 s in 2-ns steps
Minimum spacing between Time1 and Time2: 4 ns

OutOfRange: Triggers when the time length during which the condition is met

is shorter than Time1 or longer than Time2 and the condition
changes to not met
Time1: 6 ns to (10 s – 4 ns) in 2-ns steps
Time2: 8 ns to 10 s in 2-ns steps
Minimum spacing between Time1 and Time2: 4 ns (2 ns only
when Time1 = 6 ns and Time2 = 8 ns)

TimeOut: Triggers when the time length during which the condition is met

exceeds Time1

Time1: 4 ns to 10 s in 2-ns steps
Time accuracy:
Minimum time
detection width:

State Width: Triggers on the time-duration for which a pattern (conditions of signals) is met or

not met
For details on the pattern signals and clock source and pattern combination, see
“State.”

FlexRay:

CAN:

1 For LOGIC ports, L0 to L7, A0 to A7 and B0 to B7 bits can be set individually or at the port level.

A0 to A7 and B0 to B7 are available on models with the /L16 option.
2 Values measured under standard operating conditions (see section 6.11 for details) after a 30-minute warm-up.
3 Typical values represent typical or average values. They are not strictly warranted.
4 FlexRay and CAN are options.

4

4

For details on the time settings, see “Pulse Width.”
Triggers on a FlexRay bus signal
The source can be set to a signal from CH1 to CH8.
Mode: Frame Start, Error, ID/Data, ID OR
Bit Rate: 2.5 M, 5 M, 10 Mbps
Bus channel: A, B
Triggers on a CAN (Controller Area Network) bus signal
The source can be set to a signal from CH1 to CH8.
Mode: SOF, Error, ID/Data, ID OR
Bit Rate: 33.3 k, 83.3 k, 125 k, 250 k, 500 k, 1 Mbps, User Define
For User Define, you can set a value from 10 k to 1 Mbps in 0.1-kbps steps.

2

±(0.5% of setting + 2 ns)
2 ns (typical value

3

)

1

, EXT, or LINE.

1

, or EXT.

1

.

6

Specifications

IM DLM4038-03EN

6-5

6.2 Triggering Section

Item Specifications

CAN FD:

LIN:

SENT:

PSI5 Airbag:

UART:

I2C:

SPI:

User Define: Triggers on a general-purpose serial communication signal

1 CAN FD, LIN, SENT, PSI5, UART, I2C, and SPI are options.
2 For LOGIC ports, L0 to L7, A0 to A7 and B0 to B7 bits can be set individually or at the port level.

A0 to A7 and B0 to B7 are available on models with the /L16 option.

1

Triggers on a CAN FD bus signal (ISO 11898-1: 2015 or non-ISO)
The source can be set to a signal from CH1 to CH8.
Mode: SOF, Error, ID/Data, ID OR, FDF, ESI
Bit Rate: Arbitration phase
250 k, 500 k, 1 Mbps, User Define
For User Define, you can set a value from 20 k to 1 Mbps in 0.1-kbps

steps.
Data phase
500 k, 1 Mbps, 2 Mbps, 4 Mbps, 5 Mbps, 8 Mbps, User Define
For User Define, you can set a value from 250 k to 10 Mbps in 0.1-kbps

1

Triggers on a LIN (Local Interconnect Network) bus signal

steps.

The source can be set to a signal from CH1 to CH8.
Mode: Break Synch, Error, ID/Data, ID OR
Bit Rate: 1200, 2400, 4800, 9600, 19200bps, User Define

1

For User Define, you can set a value from 1 k to 20 kbps in 0.01-kbps steps.
Triggers on SENT signals (J2716 APR2016 and earlier)
The source can be set to a signal from CH1 to CH8 or LOGIC2.
Mode: Every Fast CH, Fast CH S&C (Status & Communication), Fast CH Data,

Every Slow CH, Slow CH ID/Data, Error

Clock period: 1 μs to 100 μs (resolution: 0.01 μs)

1

Triggers on PSI5 Airbag signal
The source can be set to a signal from CH1 to CH8.
Mode: Sync, Start Bit, Data
Bit Rate: 125kbps, 189kbps, User Define
For User Define, you can set a value from 10.0 k to 1000.0 kbps in 0.1-kbps

1

steps.
Triggers on a UART (RS232) signal
The source can be set to a signal from CH1 to CH8 or LOGIC2.
Mode: Every Data, Error, Data
Format: 8-bit data (no parity bit), 7-bit data + parity bit,
8-bit data + parity bit
Bit Rate: 1200, 2400, 4800, 9600, 19200 bps, 38400 bps, 57600 bps, 115200

bps, User Define

1

For User Define, you can set a value from 1 k to 10000 kbps in 0.1 kbps steps.
Triggers on an I2C bus signal
The source can be set to a signal from CH1 to CH8 or LOGIC2.

1

Mode: Every Start, Adr Data, NON ACK, General Call, Start byte, HS Mode
Triggers on an SPI (Serial Peripheral Interface) bus signal
The source can be set to a signal from CH1 to CH8 or LOGIC2.
Mode: 3 Wire, 4 Wire

The source can be set to a signal from CH1 to CH8.
Data channel, chip select channel, clock channel, and latch channel can be
specified.
Bit Rate: 1 k to 100 Mbps (with clock)
1 k to 50 Mbps (without clock)
Data Size: 1 to 128 bits

6-6

IM DLM4038-03EN

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2

3

4

5

6.2 Triggering Section

Item Specifications

TV: Triggers on the specified field number, line number, or polarity in video signals of

various broadcasting systems.
The source can be set to a signal from CH1 to CH8.
Mode: NTSC: Triggers on an NTSC (525/60/2) signal
PAL: Triggers on a PAL (625/50/2) signal
SDTV: Triggers on an SDTV (480/60p) signal
HDTV: Triggers on the following HDTV signals
1080/60i, 1080/50i, 720/60p, 1080/25p, 1080/24p, 1080/24sF,

1080/60p

UserdefTV: You can trigger on any TV signal by selecting standard or

high definition, setting the H sync period, and setting the
sync guard. Sync guard can be set to a value from 60 to

90% of the H sync value in 1% steps.
Polarity: Pos, Neg
HF Rej: NTSC/PAL: 300 kHz (fixed)
SDTV/HDTV: OFF (fixed)
UserdefTV: Off or 300 kHz
Line: 5 to 1054(NTSC), 2 to 1251(PAL), 8 to 2251(SDTV),
2 to 2251(HDTV), 2 to 2251(UserdefTV), ALL
Field: 1, 2, X
Frame Skip: 1, 2, 4, 8

AB trigger A trigger set with the B TRIG key

Triggers on the combination of triggers A and B
The trigger conditions specified with the EDGE or ENHANCED key are assigned to trigger A; trigger
conditions specified with the B TRIG menu are assigned to trigger B.

Some trigger types cannot be specified depending on the AB trigger type as shown below.
OFF: Triggers only on the trigger A conditions (the trigger B conditions are not used).

A Delay B: After the trigger A conditions are met and the specified amount of time elapses,

the DLM4000 triggers when the trigger B conditions are met.
Trigger B cannot be set to Edge OR, Width, PSI5 Airbag, or TV.
Delay value: 10 ns to 10 s

A −> B(N): After the trigger A conditions are met, the DLM4000 triggers when the trigger B

conditions are met N times.
Trigger B cannot be set to Edge OR, Width, PSI5 Airbag, or TV.
N value: 1 to 10

Dual Bus: Triggers when the serial bus trigger (except PSI5 Airbag) A or B conditions are

met.

Forced trigger A trigger that is forced, regardless of whether the trigger conditions are met.

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6.3 Time Axis

Item Specifications

Selectable time scale range 1 ns/div to 500 s/div
Timebase accuracy* ±0.002%
Time measurement
accuracy*

* Values measured under standard operating conditions (see section 6.11 for details) after a 30-minute warm-up.

±(0.002% + 50 ps + 1 sample period)

6.4 Display

Item Specifications

Display 12.1-inch (31.4 cm) color TFT LCD*
Display screen size 245.76 mm (width) × 184.32 mm (height)
Resolution of the entire
screen
Resolution of the waveform
display

* The LCD may include a few defective pixels (within 4 ppm over the total number of pixels including RGB).
The LCD may contain some pixels that are always illuminated or that never illuminate. Please be aware that these are not

defects.

1024 × 768 (XGA)

1000 × 640

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6.5 Features

Vertical and Horizontal Control

Item Specifications

Channel on/off CH1 to CH8 and LOGIC can be turned on and off separately.

Either CH8 or LOGIC (L) can be turned on at any given time.
When interleave mode is on, all even-numbered channels, including LOGIC (L), are automatically
are turned off.

Logic signal bus display The bits of the LOGIC(L) port can be assigned to Bus, and the bits of the LOGIC(A|B) ports can

be assigned to Bus2 or Bus3. The assigned bits can be shown on a bus display. The bus display
shows the logic signal in accordance with the specified format (Format) and bit order (Bit Order).

Logic signal state display Displays logic signals that have been sampled on the edges of a clock signal. Even when the input

signal changes, a state is retained until the clock source edge changes.
For the LOGIC(L) port, you can select the clock source from CH5 to CH7 or from L0 to L7. For the
LOGIC(A|B) ports, you can select from A0 to A7 and B0 to B7.

Vertical position Turning the vertical position knob moves the vertical position of a waveform in the range of ±4 div.

Analog waveforms (analog signal waveforms):

A waveform can be moved in the range of ±4 div from the center of the waveform display frame.
CH1 to CH8 are moved separately.

Logic waveforms (logic signal waveforms):

The center of logic waveforms can be moved in the range of ±4 div from the center of the
waveform display frame.

Press the vertical position knob to reset the position to its default value (0 div).

Vertical scale The vertical SCALE knob can be used to set the voltage per grid division (V/div) or the current per

grid division (A/div).
Press the SCALE knob to switch between a mode in which you can set values in 1-2-5 steps or a
mode in which you can set values in detail (FINE).
For the selectable range when using 1-2-5 steps, see “Analog Signal Input” in Section 6.1, “Signal
Input Section.”
FINE vertical sensitivity is achieved through digital zooming.
If you change the scale while the DLM4000 is stopped, you can vertically expand or reduce
waveforms.
Logic waveforms can be expanded to three different display-size levels.

Input filtering Bandwidth limit can be specified for CH1 to CH8 separately.

For the available filter types, see “Bandwidth limit” in section 5.1, “Signal Input Section.”

Offset cancelling Can be set to on or off for CH1 through CH8

OFF: Does not apply the specified offset to the result of cursor measurements, computations, and

automated measurement of waveform parameters.

ON: Applies the specified offset to the result of cursor measurements, computations, and automated

measurement of waveform parameters.

Inverted display Waveforms can be inverted around the vertical position for CH1 to CH8 separately.

Configuration and measurement are executed on the waveforms before the inversion.
Linear scaling Scaling coefficient, offset value, and unit can be specified for CH1 to CH8 separately.
Logic signal threshold level
preset

Deskewing The time offset (skew) between CH1 to CH8 and logic signals can be adjusted.

Horizontal position You can set the waveform’s horizontal display position by using the horizontal position knob to set

Delay cancelling You can select whether to apply the specified delay to the time measurement values.

* The LOGIC(A|B) ports are available on models with the /L16 option.

You can choose from the following preset threshold level settings.

CMOS (5V) = 2.5 V, CMOS (3.3V) = 1.65 V, CMOS (2.5V) = 1.25 V, CMOS (1.8V) = 0.90 V, ECL =

–1.30 V

CH1 to CH8 can be adjusted separately. Logic waveforms can be adjusted at the port (pod (8-bit))

level. Adjustment at the bit level is not possible. Trigger deskewing is also not possible.

The adjustable range is ±100 ns in 0.01 ns steps.

the trigger position or trigger delay.

What the knob controls is indicated by the DELAY key LED.

LED off: Trigger position

LED on: Trigger delay
For trigger position and trigger delay specification details, see “Trigger position” or “Selectable
trigger delay range” in section 6.2, “Triggering Section.”

ON: Measures time with the trigger position set to 0 s (does not apply the delay to time

measurement).

OFF: Measures time with the trigger point set to 0 s (applies the delay to time measurement).

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6.5 Features

Item Specifications

Horizontal (time) scale The TIME/DIV knob can be used to set the time per grid division.

For the selectable range, see “Selectable time scale range” in section 6.3, “Time Axis.”

If you change the time scale while the DLM4000 is stopped, you can expand or reduce waveforms
along the time axis.

Roll mode The DLM4000 switches to roll mode display when the trigger mode is set to Auto, Auto Level, or

Single for the following time scale ranges. For details on the trigger modes, see “Trigger modes” in
section 6.2, “Triggering Section.”

Specified Record Length Time Scale

1.25 M points or less 100 ms/div to 500 s/div

6.25 M points 500 ms/div to 500 s/div

12.5 M points 500 ms/div to 500 s/div
25 M points 1 s/div to 500 s/div

62.5 M points 5 s/div to 500 s/div
125 M points 5 s/div to 500 s/div
250 M points 10 s/div to 500 s/div

Signal Acquisition and Screen Display

Item Specifications

Acquisition modes Normal, Envelope, and Averaging.

Normal: Normal sampling without special processing.
Envelope: From the data sampled at the maximum real-time sample rate, the DLM4000 acquires

the maximum and minimum values for each memory acquisition interval.

Average: Averages normally sampled data over multiple acquisitions. Exponential averaging

is performed when the trigger mode is set to Auto, Auto Level, or Normal, and linear
averaging is performed when the trigger mode is set to Single. The trigger mode is
handled as Normal when N Single is specified. The attenuation constant for exponential
averaging and the linear average count can be set to a value from 2 to 1024 in 2
Averaging cannot be used on logic waveforms. For details on the trigger modes, see
“Trigger modes” in section 6.2, “Triggering Section.”

Sampling modes Real-time, repetitive, or interpolation sampling. When you use a short time scale that would cause

the sample rate to exceed the real-time sampling maximum sample rate with the specified record
length kept constant, the DLM4000 operates as follows: For the maximum sample rates, see
“Maximum sample rate” in section 6.1, “Signal Input Section.”
Realtime: Achieves the desired time scale by reducing the display record length.
Interpolation: Performs interpolation sampling. If you decrease the time scale further and the upper

limit of the interpolation sampling rate is exceeded, the DLM4000 reduces the display
record length to achieve the desired time scale.

Repetitive: Performs repetitive sampling. If you decrease the time scale further and the upper limit

of the repetitive sampling rate is exceeded, the DLM4000 reduces the display record
length to achieve the desired time scale.

High resolution mode Improves the analog waveform S/N ratio by combining the high resolution mode and the digital

filter.
Improves the vertical resolution up to 12 bits.

Record lengths Standard model: 1.25 k points, 12.5 k points, 125 k points, 1.25 M points, 6.25 M points (single ),

12.5 M points (interleave and single)

/M1 option: 1.25 k points, 12.5 k points, 125 k points, 1.25 M points, 6.25 M points (single ),

62.5 M points (interleave and single)

/M2 option: 1.25 k points, 12.5 k points, 125 k points, 1.25 M points, 12.5 M points,

62.5 M points (single), 125 M points (interleave and single)

/M3 option: 1.25 k points, 12.5 k points, 125 k points, 1.25 M points, 6.25 M points, 12.5 M points,

25 M points, 62.5 M points (single), 125 M points (single), 250 M points (interleave and
single)

History Automatically saves history waveforms (past waveforms that have been acquired using the same

acquisition conditions).
Cannot be used in average mode, repetitive mode, or roll mode. Cannot be used at record lengths
that only allow Single trigger mode.
The maximum number of acquisitions that can be held is as follows:

Standard model: Up to 2500 acquisitions (when the record length is set to 1.25 k points)
/M1 option: Up to 10000 acquisitions (when the record length is set to 1.25 k points)
/M2 option: Up to 20000 acquisitions (when the record length is set to 1.25 k points)

/M3 option: Up to 50000 acquisitions (when the record length is set to 1.25 k points)

n

steps.

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6.5 Features

Item Specifications

Zoom Expands waveforms vertically (analog waveforms only) and horizontally (along the time axis).

Two locations, Zoom1 and Zoom2, can be expanded. Separate magnification settings can be
specified for each location.
Auto scrolling and searching are available as supplementary features of the zoom feature. For
details on searching, see “Waveform Searching” described later.
Vertical zoom

Zoom source waveform: CH1 to CH8, Math1 to Math4

Zoom position: The center position to zoom in on on the zoom source waveform can be specified.

Selectable range: ±4 div

Zoom factor: The selectable range is 1 to 10.

Time axis zoom

Zoom position: The center position to zoom in on on the main waveform can be specified.

Selectable range: ±5 div

Zoom factor: Can be set using the time scale magnification (ZOOM) knob. Press the ZOOM knob

to switch between a mode in which you can set values in 1-2-5 steps or a mode
in which you can set values in detail (FINE). The selectable range is from 2 or 2.5
to the magnification that corresponds to 2.5 points/10 div or 3.125 points/10 div. If
the record length or time axis is changed, the DLM4000 retains the zoom factor as
much as possible.

Auto scroll feature: Automatically moves the zoom position in the specified direction.

Display format Auto or 1, 2, 3, 4, 6, or 8 areas.

When set to Auto, the DLM4000 to automatically select the number of areas depending on the
number of displayed waveforms.
The zoom windows can be divided into 1, 2, 3, 4, 6, or 8 areas or can be set to follow the main
window setting. When a zoom window and the main window are displayed at the same time, you
can set the vertical display area of the main window to 20% or 50%.

Display interpolation Interpolation between sampled points can be set to sine interpolation, linear interpolation, pulse

interpolation, or no interpolation.

Grid The grid in the window can be set to dot grid, line grid, frame, and crosshair. Fine grid can be

turned on and off.
The normal grid appears in front of the waveforms, and the fine grid appears in the back of the
waveforms.

Auxiliary display on and off Waveform labels and scale values can be turned on and off. Waveform labels are assigned

separately to channels.

LCD backlight adjustment The LCD backlight can be turned off manually or automatically (automatically turns off when a

specified time elapses with no key activity). The brightness can be adjusted.
If the backlight is off, operating any key or knob turns on the backlight.
The brightness level can be adjusted in the range of 1 to 10 (10 levels).

X-Y display Four X-Y waveforms, XY1 to XY4, can be displayed.

X-Y waveforms are displayed in their dedicated window and can be displayed simultaneously with
T-Y waveforms.
Specify the X-Trace, Y-Trace, and the X-Y display time range.
XY1, XY2

X-Trace: CH1 to CH4, Math1, Math2

Y-Trace: CH1 to CH4, Math1, Math2

XY3, XY4

X-Trace: CH5 to CH8, Math3, Math4

Y-Trace: CH5 to CH8, Math3, Math4

Display range: –5div to +5div on the VT waveform display

Accumulate Accumulates waveforms with gradually decreasing intensity for the specified amount of time.

The accumulation time can be set to a value from 100 ms to 100 s or to infinite.
Intensity and color modes can be selected.

Intensity: Accumulates waveforms using separate channel colors with gradually decreasing

intensity.

Color: Displays the intensity that appears in intensity mode using different colors

Snapshot The currently displayed waveforms can be retained on the screen.

Snapshot waveforms can be saved and loaded.

Clear trace Clears all displayed waveforms.

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6.5 Features

Computation, Analysis, and Searching

Item Specifications

Computation Four computations can be performed, using MATH1 to MATH4.

Waveform source waveforms are as follows:

Math1: CH1 to CH4
Math2: CH1 to CH4, Math1
Math3: CH5 to CH8
Math4: CH5 to CH8, Math3

The maximum computable record length is as follows:

Standard model: 6.25 M points
/M1 option: 25 M points
/M2 option: 62.5 M points
/M3 option: 125 M points

The following computation types are available.

Standard model:

Operators +, –, x, Filter, Integ, Count(Edge/Rotary)

User-defined computation (/G2 or /G4 option):

Expressions can be created by combining the following operators and constants.
Operators: +, –, *, /, ABS, SQRT, LOG, LN, EXP, P2, SIN, ASIN, COS, ACOS, TAN, ATAN,

PH, DIFF, INTEG, FILT1, FILT2, HLBT, MEAN, DELAY, BIN, PWHH, PWHL,
PWLH, PWLL, PWXX, FV, DUTYH, DUTYL, DA

Constants: K1 to K4, 0 to 9, PI, e, fs, 1/fs, Exp, Measure

FFT Two FFT (Fast Fourier Transform) waveforms, FFT1 and FFT2, can be displayed.

Analysis source waveforms: CH1 to CH8, Math1 to Math4
Analysis range: Main, Zoom1, Zoom2
FFT Points: 1.25 k, 2.5 k, 12.5 k, 25 k, 125 k, 250 k points (samples the waveform in the analysis

range using the specified number of FFT points)
Time windows: Rectangular, Hanning, and flattop
FFT waveform display modes: Normal, Max Hold, Average

On models with the user-defined computation option, the FFT’s Type and Sub type settings can be
selected.

Type: LS-, RS-, PS-, PSD-, CS-, TF-, CH­Sub type: MAG, LOGMAG, PHASE, REAL, IMAG

Reference waveforms Four reference waveforms, REF1 to REF4, can be displayed

Saved waveforms and channel waveforms can be loaded into REF1 to REF4.
Ref1 to Ref4 use the Math1 to Math4 traces, respectively. Therefore, Ref and Math cannot be
used simultaneously. Maximum record length at which reference waveforms can be used is the
same as the maximum record length at which computation is possible. For details on the maximum
computable record length, see “Computation” two items earlier.

Waveform searching Searches the displayed waveform for locations that meet the specified conditions and displays the

waveform expanded around the detected points. Up to 50000 points can be detected within the
specified search range.

Search start and end points: Can be set within ±5 div. If the search type is not set to Edge or

Pulse Width, End Point is fixed at +5 div.

Search Types: Edge, Edge Qualified, State, Pulse Width, State Width

Serial bus signal analysis* FlexRay, CAN, CAN FD (ISO 11898-1: 2015 or non-ISO), LIN, CXPI, SENT, PSI5 Airbag, UART,

History waveform display
and searching

* FlexRay, CAN, CAN FD, LIN, CXPI, SENT, PSI5, UART, I2C, and SPI are options.

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C, SPI, and user-defined serial bus data can be analyzed and displayed. The DLM4000 can
decode frames, fields, and other information from the waveform displayed on the screen. Then,
it can display the decoded results and the waveform together on the screen or display a list of
detailed decoded results. For SENT and PSI5 Airbag signals, trend display is also possible.

By performing a search, you can display an expanded waveform with the detected frame’s or field’s
first data byte at the center of the window. The DLM4000 can analyze and search the waveforms
of up to four serial bus signals. The DLM4000 can search up to 50000 points on the selected serial
bus signal.

You can display one waveform or all history waveforms overlapped and list the timestamps of the
waveforms.

You can search for waveforms that meet specified conditions, display detected history waveforms,
and list the timestamps of the waveforms.

Search conditions: Up to 4
Search logic: Select Simple or the AND or OR of four search conditions. Simple sets the search

Search criterion: The source waveform enters the search range (IN), moves outside the search

Search range type: Select from the following:

RectZone: Rectangular zone. Cannot be used on FFT waveforms.
WaveZone: Waveform zone. Cannot be used on XY or FFT waveforms.
PolygonZone: Polygonal zone. Cannot be used on FFT waveforms.
Parameter: Zone between the upper and lower limits of one waveform parameter.

condition to waveforms entering a rectangular zone.

range (OUT), or don’t care (X)

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6.5 Features

Item Specifications

Cursor measurement Cursors can be placed on displayed waveforms to display the measured values between the

cursors and waveforms.
Select from the following cursors.

ΔT, ΔV, ΔT & ΔV, Marker, Degree
Automated measurement of
waveform parameters

Statistical processing of
waveform parameters

Trend display and histogram
display of waveform
parameters
Enhanced parameter
measurement

Frequency distribution
analysis

Action-on-trigger A specific action can be executed when the DLM4000 triggers.

GO/NO-GO determination A specific action can be executed when the GO/NO-GO result is NO-GO.

The following waveform parameters can be automatically measured.

Items that are measured over the entire specified range of data and are irrelevant to the period:

Max, Min, P-P, High, Low, Amplitude, Rms, Mean, Sdev, IntegTY+, IntegTY, +Over,
–Over, Pulse Count, Edge Count

Items that are measured in the first period in the specified range:

Freq, Period, Burst, +Width, –Width, Duty, Rise, Fall, Delay

Items that are measured over all periods in the specified range:

AvgFreq, AvgPeriod

ΔT & ΔV cursor value:

V1, V2, ΔT

For logic signals, the following items are selectable.

Freq, Period, AveFreq, Duty, Pulse Count, Delay

In cycle mode, the following items are valid.

Max, Min, P-P, High, Low, Amplitude, Rms, Mean, Sdev, IntegTY+, IntegTY, +Over,
–Over

The maximum total number of items that can be displayed in Area1 and Area2 on the screen is

30. Area1 indicates the area (the first area) for the normal automated measurement of waveform
parameters. For details on Area2, see “Enhanced parameter measurement” described later.
For the automated measured values of waveform parameters, the following three types of statistical
processing are available.

Continuous: Calculates statistics on normal measurement that is performed multiple times.

Cycle: Calculates statistics on the measurement of each period of the displayed waveform.

History: Calculates statistics on the measurements of multiple history waveforms.

The resultant statistics that are displayed are as follows:

Max, Min, Mean, σ, Count

The maximum total number of items that can be displayed in Area1 and Area2 on the screen is 9.
For details on Area2, see “Enhanced parameter measurement” described later.
Up to two trends or histograms of the specified measurement items can be displayed.
The maximum total number of items that can be displayed in Area1 and Area2 on the screen is 9.
For details on Area2, see “Enhanced parameter measurement” described later.
Performs automated measurement of waveform parameters on the second area (Area2).
In addition to the normal waveform measurement range (Area1; desribed earlier), you can
specify another measurement range (Area2). In addition, calculations can be performed using the
automated measurement values of waveform parameters.
The maximum total number of items that can be displayed in Area1 and Area2 on the screen is 30.
Counts the frequency of data occurrence in a specified area and displays the values in a histogram.
You can select whether to count the frequency on the vertical or time axis.
The mean, standard deviation, maximum value, minimum value, peak value, median, etc., can be
measured on the histogram.
You can set up to two histogram source waveforms.

You can set the number of times to execute the action on the basis of the number of waveform
acquisitions or the number of determinations.
Actions: Beeping, screen capture data printing or saving, waveform data saving, mail transmission

You can set the number of times to execute the action on the basis of the number of waveform
acquisitions or the number of determinations.

Conditions: Up to 4 can be specified.

Determination logic: Four conditions can be combined using AND or OR logic.

Reference: The source waveform enters the reference range (IN), moves outside the search

range (OUT), or don’t care (X)

Reference range type: Select from the following:

RectZone: Rectangular zone. Cannot be used on FFT waveforms.
WaveZone: Waveform zone. Cannot be used on XY or FFT waveforms.
PolygonZone: Polygonal zone. Cannot be used on FFT waveforms.
Parameter: Zone between the upper and lower limits of one waveform parameter.

Actions: Beeping, screen capture data printing or saving, waveform data saving, mail transmission

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6.5 Features

Item Specifications

Power supply analysis
feature (/G3 or /G4 option)

You can select and execute the analysis feature or power measurement feature.
Analysis feature: Two of the following analyses can be executed simultaneously.

• Switching loss analysis (SW Loss):
The total loss and the switching loss can be measured. Items such as power waveforms and
measured values can be displayed, and statistics can be computed. The items whose switching
losses can be measured automatically are listed below.

Wp, Wp+, Wp–, Abs.Wp, P, P+, P–, Abs.P, Z

• Safe Operating Area (SOA):
An X-Y display can be created with voltage input plotted on the X-axis and current input plotted
on the Y-axis.

• Harmonic analysis (Harmonics):
Simple comparisons can be made between the harmonics and standard limits.

IEC 61000-3-2 Ed. 2.2, “Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for

harmonic current emissions (equipment input current ≤ 16 A per phase)”

EN 61000-3-2 (2000)
IEC 61000-4-7 Ed. 2

• Joule integral (I
Items such as Joule integral waveforms and measured values can be displayed, and statistics
can be computed. The item whose Joule integral can be measured automatically is shown
below.

I2t

Power measurement feature: The power of up to four circuits can be measured simultaneously.

The items that can be measured automatically are shown below.
U+pk, U–pk, Up-p, Udc, Uac, Urms, Umn, Urmn, Avg Freq (of voltage), I+pk, I–pk, Ip-p, Idc, Iac,

Irms, Imn, Irmn, Avg Freq (of current), S, P, Q, Z, λ, Wp, Wp+, Wp–, Abs.Wp, q, q+, q–, Abs.q

The auto deskew feature automatically deskews the time difference between the voltage and
current waveforms. Auto deskew uses voltage and current signals of the deskew signal sources
(701935 or 701936; sold separately) that are received through probes connected to voltage
channels and current channels, respectively. For information about the deskew range, see
“Deskewing” described earlier.

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Screen Capture Data Printing and Saving

Item Specifications

Built-in printer
(/B5 option)

Network printer Prints screen captures on an external printer via Ethernet.

File Saves screen capture data to the specified storage medium using one of the following save modes.

Prints screen captures with the built-in printer.
Print mode: Select from the following:

Hardcopy: Prints the displayed screen image.
Normal: Prints only the waveform area of the displayed screen image. The menu is not printed. If

cursor measurements or automatically measured results are displayed, they are printed
below the waveform area.

Long: Prints a screen capture whose time axis is magnified 2 to 10 times. The menu is not

printed. If cursor measurements or automatically measured results are displayed, they are
printed below the waveform area.

Color can be turned on or off. Supports Epson inkjet printers, HP inkjet printers, and HP laser
printers.
Print mode: Select from the following:

Hardcopy: Prints the displayed screen image.
Normal: Prints only the waveform area of the displayed screen image. The menu is not printed. If

cursor measurements or automatically measured results are displayed, they are printed
below the waveform area.

The storage medium can be set to internal memory or USB storage.
Output data format can be set to PNG, BMP, or JPEG. Available color settings are OFF, ON, ON
(Rev), and ON (Gray).
Save mode: Select from the following:

Hardcopy: Saves the displayed screen image.
Normal: Saves only the waveform area of the displayed screen image. The menu is not saved. If

cursor measurements or automatically measured results are displayed, they are printed
below the waveform area.

Wide: Saves a screen capture whose time axis is magnified twice. The menu is not saved. If

cursor measurements or automatically measured results are displayed, they are printed
below the waveform area.

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6.5 Features

Data Storage

Item Specifications

Waveform data Saves waveform data (including history waveforms) to the specified storage medium.* The saved

data can be loaded into the DLM4000.
Available data formats are binary (.wdf) and ASCII (.csv). Only binary (.wdf) files can be loaded into
the DLM4000.
When saving waveform data, specify the data format, the waveform to save, the history range,
the window to be saved (Main, Zoom1, or Zoom2), and the compression method (OFF, P-P, or
Decimation).
When loading waveform data, set the load destination to the acquisition memory (channel), Ref1
(Math1) to Ref4 (Math4).
If waveform data is loaded into the acquisition memory, the data is cleared when you start
waveform acquisition.

Setup data Setup data can be saved to the specified storage medium.* The saved data can be loaded into the

DLM4000.
Setup data (storage and
recall)
Other types of data The displayed screen image can be saved. Waveform zones can be saved and loaded. Polygonal

* The storage medium can be set to internal memory or USB storage.

Up to three sets of setup data can be stored and loaded from the internal memory.

zones can be loaded. Snapshot waveforms can be saved and loaded. Automatically measured

waveform parameters can be saved. Serial bus analysis results can be saved. FFT waveform data

can be saved. Histogram data can be saved. A list of timestamps of history waveforms can be

saved.

6

Specifications

Other Features

Item Specifications

Default setup Resets the DLM4000 to its factory default settings.

The following settings are not reset: date and time settings, communication interface settings,
settings stored to the internal memory, language settings, and font size of measured values.
The Undo command can be used to revert to the previous settings.

Auto setup Automatically sets the voltage scale, time scale, trigger, and other settings to the most suitable

values for the input signals.
The Undo command can be used to revert to the previous settings.

Serial bus auto setup*

Calibration Auto calibration and manual calibration are available.
System settings The date, time, and message language can be specified. The click sound can be turned on and off.
Probe compensation signal
output
Overview Allows you to view the DLM4000 system status.
Additional option license Trigger, computation, and analysis options can be added.
Self-tests Memory, accuracy, keyboard, and printer tests are available.
Help Displays a description of the settings.

* On models with the serial bus option.

Auto setup can be executed on the basis of the selected serial bus type (FlexRay, CAN, CAN FD,
LIN, CXPI, SENT, PSI5 Airbag, UART, I2C, or SPI) and trigger source. The DLM4000 can
automatically set the bit rate, source level, and other settings and trigger on the basis of these
settings.

Transmits signals from the front-panel probe compensation signal output terminals (approx. 1-Vp-p
and approx. 1-kHz rectangular wave).

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6.6 Built-in Printer (/B5 Option)

Item Specifications

Print system Thermal line dot system
Dot density 8 dots/mm
Sheet width 112 mm

6.7 Storage

Internal Memory

Item Specifications

Media type SD memory card
Memory size Standard model: Approx. 1.8 GB

/C8 option: Approx. 7.2 GB

USB Storage Device

Item Specifications

Compatible USB storage
devices
Available space 2 TB

* See section 6.8, “USB for Peripherals.”

Mass storage device compatible with USB Mass Storage Class Ver. 1.1

Partition format: MBR, format type: FAT32/FAT16

6.8 USB Ports for Peripherals

Item Specifications

Connector type USB type A (receptacle)
Electrical and mechanical
specifications
Supported transfer mode LS (Low Speed; 1.5 Mbps), FS (Full Speed; 12 Mbps), HS (High Speed; 480 Mbps)
Ports 2
Power supply 5 V, 500 mA (for each port)
Compatible devices Mouse devices that comply with USB HID Class Ver. 1.1

No. of connectable devices Hub: 1 per port

USB Rev. 2.0 compliant

104 or 109 (Japanese) keyboards that comply with USB HID Class Ver. 1.1
Mass storage device compatible with USB Mass Storage Class Ver. 1.1
USB HUB device

Mouse and keyboard: 1 each
Mass storage devices: 4
Up to six devices can be connected including the hub

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6.9 Auxiliary I/O Section

External Trigger Input (TRIG IN)

Item Specifications

Connector type BNC
Input bandwidth* DC to 100 MHz
Input impedance Approx. 1 kΩ, approx. 20 pF
Maximum input voltage ±40 V (DC + ACpeak) or 28 Vrms

(At 1 MHz and higher, the voltage decreases at 20 dB/decade down to ±5 V (DC+ACpeak) or 3.5

Vrms.)
Input range ±2 V

Trigger level ±2 V. The resolution is 5 mV.

* Values measured under standard operating conditions (see section 6.11 for details) after a 30-minute warm-up.

Trigger Out (TRIGGER OUT)

Item Specifications

Connector type BNC
Output level 3.3 V CMOS
Output impedance Approx. 50 Ω
Output logic

Output delay 50 ns or less
Output hold time Negative logic: Low level: 800 ns min. High level: 50 ns min.

Negative logic (

Positive logic: High level: 800 ns min. Low level: 50 ns min.

) and positive logic ( ) switchable

6

Specifications

Front Panel Probe Interface Terminal

Item Specifications

Output terminals 8
Output voltage ±12 V (up to 2.0 A in combination with the side-panel probe power terminal), ±5 V (up to 1.6 A total)
Usable probes Active probes (701912, 701913, 701914), differential probes (701923, 701924, 701927),

current probes (701928, 701929)

Side Panel Probe Power Terminal (/P8 Option)

Item Specifications

Output terminals 8
Output voltage ±12 V (up to 2.0 A in combination with the probe power terminal)
Usable probes and deskew
signal sources

FET probe (700939), current probe (701930, 701931, 701932, 701933), differential probes (700924,

700925, 701920, 701921, 701922, 701926), deskew signal source (701936)

GO/NO-GO Output

Item Specifications

Connector type RJ-12 modular jack
Output signal GO OUT, NO-GO OUT
Output level TTL compatible
Compliant cable Four-wire modular cable

Video Signal Output (VIDEO OUT)

Item Specifications

Connector type D-sub 15 pin (receptacle)
Output type Analog RGB output
Output resolution XGA-compliant output, 1024 × 768 dots, approx. 60-Hz Vsync (62.5 MHz dot clock frequency)

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6.10 Computer Interface

GP-IB (/C1 Option)

Item Specifications

Electrical and mechanical
specifications
Functional specifications SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT0, C0
Protocol Complies with IEEE St’d 488.2-1992
Code ISO (ASCII) codes
Mode Addressable mode
Addresses Talker and listener addresses can be specified from 0 to 30.
Clearing remote mode Remote mode can be cleared with the SHIFT+CLEAR TRACE key (except during Local Lockout).

USB for PC Connection

Item Specifications

Connector type USB type B (receptacle)
Electrical and mechanical
specifications
Supported transfer mode FS (Full Speed; 12 Mbps), HS (High Speed; 480 Mbps)
Ports 1
Supported protocols Functions as a device that conforms to one of the following two protocols.

PC system requirements A PC running the English or Japanese version of Windows 7 (32bit, 64bit), Windows 8 (32bit, 64bit),

* A separate driver is required.

Complies with IEEE St’d 488-1978 (JIS C 1901-1987)

USB Rev. 2.0 compliant

USBTMC-USB488(USB Test and Measurement Class Ver. 1.0)*

GP-IB commands can be used through USB.

Mass Storage Class Ver.1.1

Only reading is possible from the DLM4000 internal memory through PC access.
(Operations, such as formatting, are not possible.)

Windows 8.1 (32bit, 64bit), or Windows 10 (32bit, 64bit)

Ethernet Interface

Item Specifications

Connector type RJ-45
Ports 1
Electrical and mechanical
specifications
Transmission system Ethernet (1000BASE-T, 100BASE-TX, 10BASE-T)
Communication protocol TCP/IP
Supported services Server: FTP, HTTP (Web), and VXI-11

PC system requirements A PC running the English or Japanese version of Windows 7 (32bit, 64bit), Windows 8 (32bit, 64bit),

IEEE 802.3 compliant

Client: FTP (Net Drive), SMTP (Mail), SNTP, LPR (Net Print), DHCP, and DNS

Windows 8.1 (32bit, 64bit), or Windows 10 (32bit, 64bit)

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6.11 General Specifications

Item Specifications

Standard operating
conditions

Warm-up time At least 30 minutes
Storage environment Temperature: –20°C to 60°C

Operating environment Temperature: 5°C to 40°C

Recommended calibration
period
Rated supply voltage 100 VAC to 240 VAC
Permitted supply voltage
range
Rated power supply
frequency
Permitted power supply
frequency range
Power fuse Built in (not replaceable)
Maximum power
consumption
Withstand voltage
(between the power
supply and case)
Insulation resistance
(between the power
supply and case)
External dimensions 426 mm (W) × 266 mm (H) × 178 mm (D) when the printer cover is closed; excluding protrusions
Weight Approx. 6.6 kg (excluding options)
Instrument cooling method Forced air cooling; outlet on the rear
Installation orientation Horizontal or tilted using the movable leg or stand

Battery backup The clock is backed up with the internal lithium battery.

Ambient temperature: 23 ± 5°C
Ambient humidity: 55%RH ± 10% RH
Supply voltage and
frequency errors:

Humidity: 20%RH to 80%RH (no condensation)
Altitude: 3000m or less

Humidity: 20%RH to 80%RH (when the printer is not used; no condensation)

Altitude: 2000 m or less
1 year

90 VAC to 264 VAC

50/60 Hz

48 Hz to 63 Hz

250 VA (when the printer is used)

1.5 kVAC for 1 minute

500 VDC, 10 MΩ or more

Other orientations are prohibited.
Stacking prohibited.

Battery life: Approx. five years (at an ambient temperature of 25°C)

Within 1% of rating

35%RH to 80%RH (when the printer is used; no condensation)

6

Specifications

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6-19

6.11 General Specifications

Item Specifications

Safety standards Compliant standard

EN 61010-1

Overvoltage Category II
Pollution Degree 2

EN 61010-2-030

Measurement Category Other (O)

Emissions Compliant standards

EN 61326-1 Class A
EN 61326-2-1
EN 55011 Class A, Group 1
EMC Regulatory Arrangement in Australia and New Zealand EN 55011 Class A, Group 1
Korea Electromagnetic Conformity Standard ( 한국 전자파적합성기준 )

(Applicable to the DLM4038 and DLM4058)
EN 61000-3-2
EN 61000-3-3
This is a class A instrument designed for an industrial environment. Operation of this equipment
in a residential area may cause radio interference, in which case users will be required to correct
the interference.

Cable conditions

Trigger output (TRIGGER OUT) terminal

Use a BNC cable that is 3 m or less in length.
Video signal output (VIDEO OUT) terminal

Use a shielded D-Sub 15-pin VGA cable that is 3 m or less in length.
GP-IB connector

Use a shielded cable that is 3 m in length or less.
Ethernet port (ETHERNET)

Use Ethernet cables that are 30 m or less in length.
USB port for peripherals

Attach a ferrite core (TDK: ZCAT1325-0530A, YOKOGAWA: A1181MN) to the DLM4000 end

of a USB cable. Use cables that are 3 m or less in length.
USB port for PCs

Attach a ferrite core (TDK: ZCAT1325-0530A, YOKOGAWA: A1181MN) to the DLM4000 end

of a USB cable. Use cables that are 3 m or less in length.
Probe power terminal

Attach a ferrite core (TDK: ZCAT1325-0530A, YOKOGAWA: A1181MN) to the DLM4000 end

of the B9852MJ dedicated power cable, which is sold separately.
GO/NO-GO output terminal

Use the dedicated GO/NO-GO cable (YOKOGAWA: 366973), which is sold separately. Attach

a ferrite-core (TDK: ZCAT2035-0930A, YOKOGAWA: A1190MN) to the DLM4000 end of the

cable by passing the cable twice through the core (see the figure below).

1

2

3

1 The overvoltage category (installation category) is a value used to define the transient overvoltage condition and includes the

rated impulse withstand voltage. The overvoltage category II applies to electrical equipment that is powered through a fixed
installation, such as a switchboard.

2 The pollution degree refers to the degree of adhesion of a solid, liquid, or gas which deteriorates withstand voltage or surface

resistivity. Pollution degree 2 applies to normal indoor atmospheres (with only non-conductive pollution).

3 The measurement category of the DLM4000 signal input terminals is Other (O). Do not use it to measure the main power

supply or for Measurement Categories II, III, and IV.

Measurement category Other (O) applies to measurement of circuits that are not directly connected to a main power supply.

This category applies to measurement of secondary electric circuits in equipment across a transformer. The estimated
transient overvoltage that may be applied to the DLM4000 signal input terminals is 1500 V.

Measurement category II applies to measurement of circuits, such as household electric appliances and portable electric tools,

that are connected to low-voltage installations.
Measurement category III applies to measurement of facility circuits, such as distribution boards and circuit breakers.
Measurement category IV applies to measurement of power source circuits, such as entrance cables to buildings and cable

systems, for low-voltage installations.

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Item Specifications

Immunity Compliant standards

EN 61326-1 Table 2 (for industrial environments)
EN 61326-2-1
(Applicable to the DLM4038 and DLM4058)

Influence in the immunity testing environment (criteria A)

Noise increase: ±50 mV or ± 2 div, whichever is greater
Test conditions: 1.25 GS/s, envelope mode
Cable conditions: Same as the emission cable conditions.
Test items: 1. Static discharge: EN 61000-4-2

Environmental standard Compliant standard

EN 50581 Monitoring and control instruments including industrial monitoring and control
instruments.

6.11 General Specifications

Air discharge: ±8 kV. Contact discharge: ±4 kV. Criteria B.

2. Radiated immunity: EN 61000-4-3
80 M to 1 GHz, 10 V/m, 1.4 to 4 GHz, 3 V/m, criteria A

3. Conducted immunity: EN 61000-4-6
3 V, criteria A

4. EFT/Burst: EN 61000-4-4
Power line: ±2 kV. Signal line: ±1 kV, criteria B

5. Surge immunity: EN 61000-4-5
±1 kV between lines, ±2 kV common, criteria B

6. Voltage dip and interruptions: EN 61000-4-11
1 cycle, both polarities, 100%, criteria B
Other tests, criteria C

Definitions of criteria A, B, and C

Criteria A: During testing, “influence in the immunity testing

environment” described above is met.

Criteria B: The instrument continues to function and is controllable

throughout testing. The instrument does not change
operation modes, and data changes do not persist.

Criteria C: During testing, temporary degradation of performance

or loss of functionality occurred, the correction of which
required user operation or system reset.

6

Specifications

IM DLM4038-03EN

6-21

6.12 External Dimensions

Instrument

Unless otherwise specified, tolerances are ±3% (however, tolerances are ±0.3 mm when below 10
mm).

Unit: mm

Rear view

426

266

9

13.4 178 23

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6

Appendix

Appendix 1 Relationship between the Time Axis

Setting, Record Length, and Sample Rate

When the Record Length Is 1.25 k points

(This record length can be selected on all models)

Settings

When Interleave mode is off When Interleave mode is on When Interleave mode is off When Interleave mode is on

Realtime IntP/Rep Realtime IntP/Rep Realtime IntP/Rep Realtime IntP/Rep

Sample
Rate

Time/div

(S/s)

500 s 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k
200 s 50 100 k 50 100 k 50 100 k 50 100 k 50 100 k 50 100 k 50 100 k 50 100 k
100 s 50 50 k 50 50 k 50 50 k 50 50 k 50 50 k 50 50 k 50 50 k 50 50 k
50 s 50 25 k 50 25 k 50 25 k 50 25 k 50 25 k 50 25 k
20 s 50 10 k 50 10 k 50 10 k 50 10 k 50 10 k 50 10 k 50 10 k 50 10 k
10 s 50 5 k 50 5 k 50 5 k 50 5 k 50 5 k 50 5 k 50 5 k 50 5 k
5 s 50 2.5 k 50 2.5 k 50 2.5 k 50 2.5 k 50 2.5 k 50 2.5 k 50 2.5 k 50 2.5 k
2 s 62.5 1.25 k 62.5 1.25 k 62.5 1.25 k 62.5 1.25 k 62.5 1.25 k 62.5 1.25 k 62.5 1.25 k 62.5 1.25 k
1 s 125 1.25 k 125 1.25 k 125 1.25 k 125 1.25 k 125 1.25 k 125 1.25 k 125 1.25 k 125 1.25 k
500 ms 250 1.25 k 250 1.25 k 250 1.25 k 250 1.25 k 250 1.25 k 250 1.25 k 250 1.25 k 250 1.25 k
200 ms 625 1.25 k 625 1.25 k 625 1.25 k 625 1.25 k 625 1.25 k 625 1.25 k 625 1.25 k 625 1.25 k
100 ms 1.25 k 1.25 k 1.25 k 1.25 k 1.25 k 1.25 k 1.25 k 1.25 k 1.25 k 1.25 k
50 ms 2.5 k 1.25 k 2.5 k 1.25 k 2.5 k 1.25 k 2.5 k 1.25 k 2.5 k 1.25 k 2.5 k 1.25 k 2.5 k 1.25 k 2.5 k 1.25 k
20 ms 6.25 k 1.25 k 6.25 k 1.25 k 6.25 k 1.25 k 6.25 k 1.25 k 6.25 k 1.25 k 6.25 k 1.25 k 6.25 k 1.25 k 6.25 k 1.25 k
10 ms 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k
5 ms 25 k 1.25 k 25 k 1.25 k 25 k 1.25 k 25 k 1.25 k 25 k 1.25 k 25 k 1.25 k 25 k 1.25 k 25 k 1.25 k
2 ms 62.5 k 1.25 k 62.5 k 1.25 k 62.5 k 1.25 k 62.5 k 1.25 k 62.5 k 1.25 k 62.5 k 1.25 k 62.5 k 1.25 k 62.5 k 1.25 k
1 ms 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k

500 μs 250 k 1.25 k 250 k 1.25 k 250 k 1.25 k 250 k 1.25 k 250 k 1.25 k 250 k 1.25 k 250 k 1.25 k 250 k 1.25 k
200 μs 625 k 1.25 k 625 k 1.25 k 625 k 1.25 k 625 k 1.25 k
100 μs 1.25 M 1.25 k 1.25 M 1.25 k 1.25 M 1.25 k 1.25 M 1.25 k 1.25 M 1.25 k 1.25 M 1.25 k 1.25 M 1.25 k 1.25 M 1.25 k
50 μs 2.5 M 1.25 k 2.5 M 1.25 k 2.5 M 1.25 k 2.5 M 1.25 k 2.5 M 1.25 k 2.5 M 1.25 k 2.5 M 1.25 k 2.5 M 1.25 k
20 μs 6.25 M 1.25 k 6.25 M 1.25 k 6.25 M 1.25 k 6.25 M 1.25 k 6.25 M 1.25 k 6.25 M 1.25 k 6.25 M 1.25 k 6.25 M 1.25 k
10 μs 12.5 M 1.25 k 12.5 M 1.25 k 12.5 M 1.25 k 12.5 M 1.25 k 12.5 M 1.25 k 12.5 M 1.25 k 12.5 M 1.25 k 12.5 M 1.25 k
5 μs 25 M 1.25 k 25 M 1.25 k 25 M 1.25 k 25 M 1.25 k 25 M 1.25 k 25 M 1.25 k 25 M 1.25 k 25 M 1.25 k
2 μs 62.5 M 1.25 k 62.5 M 1.25 k 62.5 M 1.25 k 62.5 M 1.25 k 62.5 M 1.25 k 62.5 M 1.25 k 62.5 M 1.25 k 62.5 M 1.25 k
1 μs 125 M 1.25 k 125 M 1.25 k 125 M 1.25 k 125 M 1.25 k 125 M 1.25 k 125 M 1.25 k 125 M 1.25 k 125 M 1.25 k

500 ns 250 M 1.25 k 250 M 1.25 k 250 M 1.25 k
200 ns 625 M 1.25 k 625 M 1.25 k 625 M 1.25 k 625 M 1.25 k 625 M 1.25 k 625 M 1.25 k 625 M 1.25 k 625 M 1.25 k
100 ns 1.25 G 1.25 k 1.25 G 1.25 k 1.25 G 1.25 k 1.25 G 1.25 k 625 M 625 1.25 G 1.25 k 1.25 G 1.25 k 1.25 G 1.25 k
50 ns 1.25 G 625 2.5 G 1.25 k 2.5 G 1.25 k 2.5 G 1.25 k 625 M 312.5 2.5 G 1.25 k 1.25 G 625 2.5 G 1.25 k
20 ns 1.25 G 250 6.25 G 1.25 k 2.5 G 500 6.25 G 1.25 k 625 M 125 6.25 G 1.25 k 1.25 G 250 6.25 G 1.25 k
10 ns 1.25 G 125 12.5 G 1.25 k 2.5 G 250 12.5 G 1.25 k 625 M 62.5 12.5 G 1.25 k 1.25 G 125 12.5 G 1.25 k
5 ns 1.25 G 62.5 25 G 1.25 k 2.5 G 125 25 G 1.25 k 625 M 31.25 25 G 1.25 k 1.25 G 62.5 25 G 1.25 k
2 ns 1.25 G 25 62.5 G 1.25 k 2.5 G 50 62.5 G 1.25 k 625 M 12.5 62.5 G 1.25 k 1.25 G 25 62.5 G 1.25 k
1 ns 1.25 G 12.5 125 G 1.25 k

When High Resolution mode is off When High Resolution mode is on

Record
Length
(Points)

Sample
Rate
(S/s)

Record

Sample

Length

Rate

(Points)

(S/s)

2.5 G 25 125 G 1.25 k 625 M 6.25 125 G 1.25 k 1.25 G 12.5 125 G 1.25 k

Sample

Record

Rate

Length

)

(S/s)

(Points

250 M 1.25 k 250 M 1.25 k 250 M 1.25 k 250 M 1.25 k 250 M 1.25 k

Sample

Record

Rate

Length

)

(S/s)

(Points

625 k 1.25 k 625 k 1.25 k 625 k 1.25 k 625 k 1.25 k

Sample

Record

Rate

Length

)

(S/s)

(Points

1.25 k 1.25 k 1.25 k 1.25 k 1.25 k 1.25 k

Values outside of the thick borders have been calculated in real-time sampling mode.

: Roll Mode

IntP: Interpolation Mode
Rep: Repetitive Sampling Mode

Record

Sample
Length
(Points)

Record

Rate

Length

(S/s)

(Points)

50 25 k 50 25 k

Sample
Rate
(S/s)

Record
Length
(Points)

App

Appendix

IM DLM4038-03EN

App-1

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

When the Record Length Is 12.5 k points

(This record length can be selected on all models)

Settings

When Interleave mode is off When Interleave mode is on When Interleave mode is off When Interleave mode is on

Realtime IntP/Rep Realtime IntP/Rep Realtime IntP/Rep Realtime IntP/Rep

Sample
Rate

Time/div

(S/s)

500 s 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k
200 s 50 100 k 50 100 k 50 100 k 50 100 k 50 100 k 50 100 k 50 100 k 50 100 k
100 s 50 50 k 50 50 k 50 50 k 50 50 k 50 50 k 50 50 k 50 50 k 50 50 k
50 s 50 25 k 50 25 k 50 25 k 50 25 k 50 25 k 50 25 k 50 25 k 50 25 k
20 s 62.5 12.5 k 62.5 12.5 k 62.5 12.5 k 62.5 12.5 k 62.5 12.5 k 62.5 12.5 k 62.5 12.5 k 62.5 12.5 k
10 s 125 12.5 k 125 12.5 k 125 12.5 k 125 12.5 k 125 12.5 k 125 12.5 k 125 12.5 k 125 12.5 k
5 s 250 12.5 k 250 12.5 k 250 12.5 k 250 12.5 k 250 12.5 k 250 12.5 k 250 12.5 k 250 12.5 k
2 s 625 12.5 k 625 12.5 k 625 12.5 k 625 12.5 k 625 12.5 k 625 12.5 k 625 12.5 k 625 12.5 k
1 s 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k 1.25 k 12.5 k
500 ms 2.5 k 12.5 k 2.5 k 12.5 k 2.5 k 12.5 k 2.5 k 12.5 k 2.5 k 12.5 k 2.5 k 12.5 k 2.5 k 12.5 k 2.5 k 12.5 k
200 ms 6.25 k 12.5 k 6.25 k 12.5 k 6.25 k 12.5 k 6.25 k 12.5 k 6.25 k 12.5 k 6.25 k 12.5 k 6.25 k 12.5 k 6.25 k 12.5 k
100 ms 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k 12.5 k
50 ms 25 k 12.5 k 25 k 12.5 k 25 k 12.5 k 25 k 12.5 k 25 k 12.5 k 25 k 12.5 k 25 k 12.5 k 25 k 12.5 k
20 ms 62.5 k 12.5 k 62.5 k 12.5 k 62.5 k 12.5 k 62.5 k 12.5 k 62.5 k 12.5 k 62.5 k 12.5 k 62.5 k 12.5 k 62.5 k 12.5 k
10 ms 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k
5 ms 250 k 12.5 k 250 k 12.5 k 250 k 12.5 k 250 k 12.5 k 250 k 12.5 k 250 k 12.5 k 250 k 12.5 k 250 k 12.5 k
2 ms 625 k 12.5 k 625 k 12.5 k 625 k 12.5 k 625 k 12.5 k 625 k 12.5 k 625 k 12.5 k 625 k 12.5 k 625 k 12.5 k
1 ms 1.25 M 12.5 k 1.25 M 12.5 k 1.25 M 12.5 k 1.25 M 12.5 k 1.25 M 12.5 k 1.25 M 12.5 k 1.25 M 12.5 k 1.25 M 12.5 k

500 μs 2.5 M 12.5 k 2.5 M 12.5 k 2.5 M 12.5 k 2.5 M 12.5 k 2.5 M 12.5 k 2.5 M 12.5 k 2.5 M 12.5 k 2.5 M 12.5 k
200 μs 6.25 M 12.5 k 6.25 M 12.5 k 6.25 M 12.5 k 6.25 M 12.5 k 6.25 M 12.5 k 6.25 M 12.5 k
100 μs 12.5 M 12.5 k 12.5 M 12.5 k 12.5 M 12.5 k 12.5 M 12.5 k 12.5 M 12.5 k 12.5 M 12.5 k 12.5 M 12.5 k 12.5 M 12.5 k
50 μs 25 M 12.5 k 25 M 12.5 k 25 M 12.5 k 25 M 12.5 k 25 M 12.5 k 25 M 12.5 k 25 M 12.5 k 25 M 12.5 k
20 μs 62.5 M 12.5 k 62.5 M 12.5 k 62.5 M 12.5 k 62.5 M 12.5 k 62.5 M 12.5 k 62.5 M 12.5 k 62.5 M 12.5 k 62.5 M 12.5 k
10 μs 125 M 12.5 k 125 M 12.5 k 125 M 12.5 k 125 M 12.5 k 125 M 12.5 k 125 M 12.5 k 125 M 12.5 k 125 M 12.5 k
5 μs 250 M 12.5 k 250 M 12.5 k 250 M 12.5 k 250 M 12.5 k 250 M 12.5 k 250 M 12.5 k 250 M 12.5 k 250 M 12.5 k
2 μs 625 M 12.5 k 625 M 12.5 k 625 M 12.5 k 625 M 12.5 k 625 M 12.5 k 625 M 12.5 k 625 M 12.5 k 625 M 12.5 k
1 μs 1.25 G 12.5 k 1.25 G 12.5 k 1.25 G 12.5 k 1.25 G 12.5 k 625 M 6.25 k 1.25 G 12.5 k 1.25 G 12.5 k 1.25 G 12.5 k

500 ns 1.25 G 6.25 k 2.5 G 12.5 k 2.5 G 12.5 k 2.5 G 12.5 k 625 M 3.125 k
200 ns 1.25 G 2.5 k 6.25 G 12.5 k 2.5 G 5 k 6.25 G 12.5 k 625 M 1.25 k 6.25 G 12.5 k 1.25 G 2.5 k 6.25 G 12.5 k
100 ns 1.25 G 1.25 k 12.5 G 12.5 k 2.5 G 2.5 k 12.5 G 12.5 k 625 M 625 12.5 G 12.5 k 1.25 G 1.25 k 12.5 G 12.5 k
50 ns 1.25 G 625 25 G 12.5 k 2.5 G 1.25 k 25 G 12.5 k 625 M 312.5 25 G 12.5 k 1.25 G 625 25 G 12.5 k
20 ns 1.25 G 250 62.5 G 12.5 k 2.5 G 500 62.5 G 12.5 k 625 M 125 62.5 G 12.5 k 1.25 G 250 62.5 G 12.5 k
10 ns 1.25 G 125 125 G 12.5 k 2.5 G 250 125 G 12.5 k 625 M 62.5 125 G 12.5 k 1.25 G 125 125 G 12.5 k
5 ns 1.25 G 62.5 125 G 6.25 k 2.5 G 125 125 G 6.25 k 625 M 31.25 125 G 6.25 k 1.25 G 62.5 125 G 6.25 k
2 ns 1.25 G 25 125 G 2.5 k 2.5 G 50 125 G 2.5 k 625 M 12.5 125 G 2.5 k 1.25 G 25 125 G 2.5 k
1 ns 1.25 G 12.5 125 G 1.25 k 2.5 G 25 125 G 1.25 k

When High Resolution mode is off When High Resolution mode is on

Record

Sample

Record

Sample

Record

Sample

Record

Sample

Record
Length
(Points)

Rate
(S/s)

Length
(Points)

Rate
(S/s)

Length
(Points)

Rate
(S/s)

Length

Rate

(Points)

(S/s)

625 M 6.25 125 G 1.25 k 1.25 G 12.5 125 G 1.25 k

Sample

Length

Rate

(Points)

(S/s)

2.5 G 12.5 k 1.25 G 6.25 k 2.5 G 12.5 k

Values outside of the thick borders have been calculated in real-time sampling mode.

: Roll Mode

IntP: Interpolation Mode
Rep: Repetitive Sampling Mode

Record

Sample
Length
(Points)

Record

Rate

Length

(S/s)

(Points)

6.25 M 12.5 k 6.25 M 12.5 k

Sample
Rate
(S/s)

12.5 k 12.5 k

Record
Length
(Points)

App-2

IM DLM4038-03EN

1

2

3

4

5

6

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

When the Record Length Is 125 k points

(This record length can be selected on all models)

Settings

When Interleave mode is off When Interleave mode is on When Interleave mode is off When Interleave mode is on

Realtime IntP/Rep Realtime IntP/Rep Realtime IntP/Rep Realtime IntP/Rep

Sample
Rate

Time/div

(S/s)

500 s 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k 50 250 k
200 s 62.5 125 k 62.5 125 k 62.5 125 k 62.5 125 k 62.5 125 k 62.5 125 k 62.5 125 k 62.5 125 k
100 s 125 125 k 125 125 k 125 125 k 125 125 k 125 125 k 125 125 k 125 125 k 125 125 k
50 s 250 125 k 250 125 k 250 125 k 250 125 k 250 125 k 250 125 k 250 125 k 250 125 k
20 s 625 125 k 625 125 k 625 125 k 625 125 k 625 125 k 625 125 k 625 125 k 625 125 k
10 s 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k 1.25 k 125 k
5 s 2.5 k 125 k 2.5 k 125 k 2.5 k 125 k 2.5 k 125 k 2.5 k 125 k 2.5 k 125 k 2.5 k 125 k 2.5 k 125 k
2 s 6.25 k 125 k 6.25 k 125 k 6.25 k 125 k 6.25 k 125 k 6.25 k 125 k 6.25 k 125 k 6.25 k 125 k 6.25 k 125 k
1 s 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k 12.5 k 125 k
500 ms 25 k 125 k 25 k 125 k 25 k 125 k 25 k 125 k 25 k 125 k 25 k 125 k 25 k 125 k 25 k 125 k
200 ms 62.5 k 125 k 62.5 k 125 k 62.5 k 125 k 62.5 k 125 k 62.5 k 125 k 62.5 k 125 k 62.5 k 125 k 62.5 k 125 k
100 ms 125 k 125 k 125 k 125 k 125 k 125 k 125 k 125 k 125 k 125 k 125 k 125 k 125 k 125 k
50 ms 250 k 125 k 250 k 125 k 250 k 125 k 250 k 125 k 250 k 125 k 250 k 125 k 250 k 125 k 250 k 125 k
20 ms 625 k 125 k 625 k 125 k 625 k 125 k 625 k 125 k 625 k 125 k 625 k 125 k 625 k 125 k 625 k 125 k
10 ms 1.25 M 125 k 1.25 M 125 k 1.25 M 125 k 1.25 M 125 k 1.25 M 125 k 1.25 M 125 k 1.25 M 125 k 1.25 M 125 k
5 ms 2.5 M 125 k 2.5 M 125 k 2.5 M 125 k 2.5 M 125 k 2.5 M 125 k 2.5 M 125 k 2.5 M 125 k 2.5 M 125 k
2 ms 6.25 M 125 k 6.25 M 125 k 6.25 M 125 k 6.25 M 125 k 6.25 M 125 k 6.25 M 125 k 6.25 M 125 k 6.25 M 125 k
1 ms 12.5 M 125 k 12.5 M 125 k 12.5 M 125 k 12.5 M 125 k 12.5 M 125 k 12.5 M 125 k 12.5 M 125 k 12.5 M 125 k

500 μs 25 M 125 k 25 M 125 k 25 M 125 k 25 M 125 k 25 M 125 k 25 M 125 k 25 M 125 k 25 M 125 k
200 μs 62.5 M 125 k 62.5 M 125 k 62.5 M 125 k 62.5 M 125 k 62.5 M 125 k 62.5 M 125 k
100 μs 125 M 125 k 125 M 125 k 125 M 125 k 125 M 125 k 125 M 125 k 125 M 125 k 125 M 125 k 125 M 125 k
50 μs 250 M 125 k 250 M 125 k 250 M 125 k 250 M 125 k 250 M 125 k 250 M 125 k 250 M 125 k 250 M 125 k
20 μs 625 M 125 k 625 M 125 k 625 M 125 k 625 M 125 k 625 M 125 k 625 M 125 k 625 M 125 k 625 M 125 k
10 μs 1.25 G 125 k 1.25 G 125 k 1.25 G 125 k 1.25 G 125 k 625 M 62.5 k 1.25 G 125 k 1.25 G 125 k 1.25 G 125 k
5 μs 1.25 G 62.5 k 2.5 G 125 k 2.5 G 125 k 2.5 G 125 k 625 M 31.25 k 2.5 G 125 k 1.25 G 62.5 k 2.5 G 125 k
2 μs 1.25 G 25 k 6.25 G 125 k 2.5 G 50 k 6.25 G 125 k 625 M 12.5 k 6.25 G 125 k 1.25 G 25 k 6.25 G 125 k
1 μs 1.25 G 12.5 k 12.5 G 125 k 2.5 G 25 k 12.5 G 125 k 625 M 6.25 k 12.5 G 125 k 1.25 G 12.5 k 12.5 G 125 k

500 ns 1.25 G 6.25 k 25 G 125 k 2.5 G 12.5 k 25 G 125 k 625 M 3.125 k
200 ns 1.25 G 2.5 k 62.5 G 125 k 2.5 G 5 k 62.5 G 125 k 625 M 1.25 k 62.5 G 125 k 1.25 G 2.5 k 62.5 G 125 k
100 ns 1.25 G 1.25 k 125 G 125 k 2.5 G 2.5 k 125 G 125 k 625 M 625 125 G 125 k 1.25 G 1.25 k 125 G 125 k
50 ns 1.25 G 625 125 G 62.5 k 2.5 G 1.25 k 125 G 62.5 k 625 M 312.5 125 G 62.5 k 1.25 G 625 125 G 62.5 k
20 ns 1.25 G 250 125 G 25 k 2.5 G 500 125 G 25 k 625 M 125 125 G 25 k 1.25 G 250 125 G 25 k
10 ns 1.25 G 125 125 G 12.5 k 2.5 G 250 125 G 12.5 k 625 M 62.5 125 G 12.5 k 1.25 G 125 125 G 12.5 k
5 ns 1.25 G 62.5 125 G 6.25 k 2.5 G 125 125 G 6.25 k 625 M 31.25 125 G 6.25 k 1.25 G 62.5 125 G 6.25 k
2 ns 1.25 G 25 125 G 2.5 k 2.5 G 50 125 G 2.5 k 625 M 12.5 125 G 2.5 k 1.25 G 25 125 G 2.5 k
1 ns 1.25 G 12.5 125 G 1.25 k 2.5 G 25 125 G 1.25 k

When High Resolution mode is off When High Resolution mode is on

Record

Sample

Record

Sample

Record

Sample

Record

Sample

Record
Length
(Points)

Rate
(S/s)

Length
(Points)

Rate
(S/s)

Length
(Points)

Rate
(S/s)

Length

Rate

(Points)

(S/s)

625 M 6.25 125 G 1.25 k 1.25 G 12.5 125 G 1.25 k

Sample

Length

Rate

(Points)

(S/s)

25 G 125 k 1.25 G 6.25 k 25 G 125 k

Values outside of the thick borders have been calculated in real-time sampling mode.

: Roll Mode

IntP: Interpolation Mode
Rep: Repetitive Sampling Mode

Record

Sample
Length
(Points)

Record

Rate

Length

(S/s)

(Points)

62.5 M 125 k 62.5 M 125 k

Sample

Record

Rate

Length

(S/s)

(Points)

125 k 125 k

App

Appendix

IM DLM4038-03EN

App-3