YOKOGAWA DL850E User manual

User’s
Manual DL850E/DL850EV
ScopeCorder
Getting Started Guide
IM DL850E-03EN
6th 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

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IM DL850E-03EN
Thank you for purchasing the DL850E ScopeCorder or DL850EV ScopeCorder Vehicle Edition
(hereinafter, “DL850E/DL850EV” will refer to both of these products).
This getting started guide primarily explains the handling precautions and basic operations of the
DL850E/DL850EV. To ensure correct use, please read this manual thoroughly before 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 DL850E/DL850EV. Please
read all manuals.
Manual Title Manual No. Description
DL850E/DL850EV ScopeCorder
Features Guide
IM DL850E-01EN The supplied CD contains the PDF file of this manual.
The manual explains all the DL850E/DL850EV features
other than the communication interface features. You can
view the same information in the DL850E/DL850EV help
files.
DL850E/DL850EV ScopeCorder
User’s Manual
IM DL850E-02EN The supplied CD contains the PDF file of this manual.
The manual explains how to operate the DL850E/DL850EV.
DL850E/DL850EV ScopeCorder
Getting Started Guide
IM DL850E-03EN This guide. The guide explains the handling precautions
and basic operations of the DL850E/DL850EV.
DL850E/DL850EV ScopeCorder
Communication Interface
User’s Manual
IM DL850E-17EN The supplied CD contains the PDF file of this manual.
The manual explains the DL850E/DL850EV communication
interface features and instructions on how to use them.
DL850E/DL850EV ScopeCorder
Real Time Math/Power Math
User’s Manual
IM DL850E-51EN The supplied CD contains the PDF file of this manual.
The manual explains the features of the DL850E/DL850EV
Real Time Math/Power Math option and how to use them.
DL850E/DL850EV ScopeCorder
Acquisition Software
User’s Manual
IM DL850E-61EN The supplied CD contains the PDF file of this manual.
The manual explains all the features of the acquisition
software, which records and displays data measured with
the DL850E/DL850EV on a PC.
Precautions Concerning the
Modules
IM 701250-04E The manual explains the precautions concerning the
modules.
Model DL850E ScopeCorder,
Model DL850EV ScopeCorder
Vehicle Edition, User’s Manual
IM DL850E-92Z1 Document for China
The “EN”, “E” and “Z1” in the manual numbers are the language codes.
Refer to the “Optional Accessories (Sold Separately)” about the accessory’s manual No..
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 functions. 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.
6th Edition: March 2016 (YMI)
All Rights Reserved, Copyright © 2013 Yokogawa Meters & Instruments Corporation

ii IM DL850E-03EN
Trademarks
• Microsoft, Internet Explorer, MS-DOS, Windows, Windows NT, Windows XP, Windows Vista,
Windows 7, and Windows 8 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.
• PIEZOTRON is a registered Trademark of Kistler Instrumente AG.
• PCB and ICP are registered trademarks of PCB Group, Inc.
• Isotron is a registered trademark of Meggitt Group, PLC.
• VJE is a registered trademark of Yahoo Japan Corporation.
• MATLAB is a registered trademark of The MathWorks, Inc. in the United States.
• GIGAZoom ENGINE 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 trademarks or registered trademarks of their respective
holders.
Revisions
• 1st Edition: December 2013
• 2nd Edition: July 2014
• 3rd Edition: March 2015
• 4th Edition: October 2015
• 5th Edition: February 2016
• 6th Edition: March 2016

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Regarding the Conventional DL850 and DL850V
The DL850E/DL850EV manuals also cover how to use the conventional DL850/DL850V (firmware
version 3.0 and later).
In the explanations, the model is indicated as DL850E/DL850EV, but if you are using the DL850/DL850V,
read “DL850E” as “DL850” and “DL850EV” as “DL850V.” The following options are available only for the
DL850E/DL850EV. They cannot be used with the DL850 or DL850V.
• Power math (/G5 option)
• GPS interface (/C30 option)
Note
If modules that were released after the discontinuation of the DL850 and DL850V (December 31, 2013) are
installed in the DL850 or DL850V, the compliance conditions of the standards that the DL850 and DL850V
comply with will no longer be met. For details, see the Precautions Concerning the Modules (IM 701250-04E)
included with the module.

iv IM DL850E-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.
DL850E/DL850EV
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.
MODEL Suffix1Description
DL850E/DL850EV Main device, 8 slots, 250 Mpoint memory
Power cord2-D UL/CSA Standard power cord, Maximum rated voltage: 125 V
-F VDE Standard power cord, Maximum rated voltage: 250 V
-Q BS Standard power cord, Maximum rated voltage: 250 V
-R AS Standard power cord, Maximum rated voltage: 250 V
-H GB Standard power cord, Maximum rated voltage: 250 V
-N NBR Standard power cord, Maximum rated voltage: 250 V
Language -HJ Japanese
-HE English
-HC Chinese
-HK Korean
-HG German
-HF French
-HL Italian
-HS Spanish
Options /B5 Built-in printer3
/DC 12 VDC Power (10 to 18 VDC) (DL850EV only)4
/M1 Memory expansion to 1 Gpoint5
/M2 Memory expansion to 2 Gpoint5
/HD0 External HDD interface6
/HD1 500 GB internal HDD6
/C1 GP-IB interface7
/C20 GP-IB interface + IRIG7
/C30 GPS interface7
/G2 User-defined computation
/G3 Real Time Math8
/G5 Power math8
/P4 Probe power supply, four outputs
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 Includes one roll of paper (B9988AE)
4 The /DC option can only be installed on the DL850EV. The /DC and /B5 options cannot be installed on the same
instrument.
5 The /M1 and /M2 options cannot be installed on the same instrument.
6 The /HD0 and /HD1 options cannot be installed on the same instrument.
7 The /C1, /C20, and /C30 options cannot be installed on the same instrument.
8 The /G3 and /G5 options cannot be installed on the same instrument.

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IM DL850E-03EN
No. (Instrument Number)
When contacting the dealer from which you purchased the instrument, please give them the instrument
number.
Checking the Contents of the Package

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Standard Accessories
The standard accessories below are supplied with the instrument. Check that all contents are present
and undamaged.
Item Model or Part No. Quantity Specifications and Notes
Power cord1A1006WD
A1009WD
A1054WD
A1024WD
A1064WD
A1088WD
1 UL, CSA, and PSE standard
VDE standard
BS standard
AS standard
GB standard
NBR standard
Front-panel protection cover B8074EA 1 —
Soft case B8059GG 1 —
Printer roll paper2B9988AE 1 —
Panel sheet See below. 1 Japanese, Chinese, Korean, German, French,
Italian, or Spanish
DC power connector3B8023WZ 1 —
Cover panels B8073CY 8 —
Rubber feet B9989EX 1 —
GPS antenna4A1058ER 1 —
Manuals
Printed manuals IM DL850E-03EN 1 Getting Started Guide (this guide)
IM 701250-04E 1 Precautions Concerning the Modules
IM DL850E-92Z1 1 Document for China
PIM 113-01Z2 1 List of worldwide contacts
Manual CD B8074XT 1 Contains PDFs of the user’s manuals,
Acquisition Software and USB driver
(For the types of manuals that CD contains,
see the next page.)
Cover panels
B8073CY,
8 panels
Front-panel
protection cover
B8074EA
Soft case
B8059GG
Rubber feet
B9989EX,
1 sheet
(4 feet)
Printer roll paper2
B9988AE, 1 roll
One of the following panel sheets:
B8074GP (Japanese; -HJ)
B8074GQ (Chinese; -HC)
B8074GR (Korean; -HK)
B8074GS (German; -HG)
B8074GT (French; -HF)
B8074GV (Italian; -HL)
B8074GW (Spanish; -HS)
DC power connector3
B8023WZ
Manuals
• Printed manuals • Manual CD
GPS antenna4
A1058ER
DL850E
B8074HP (Japanese; -HJ)
B8074HQ (Chinese; -HC)
B8074HR (Korean; -HK)
B8074HS (German; -HG)
B8074HT (French; -HF)
B8074HV (Italian; -HL)
B8074HW (Spanish; -HS)
DL850EV
VDE Standard
A1009WD
BS Standard
A1054WD
AS Standard
A1024WD
F Q R
Power cord (one cord that matches the suffix code is included)1
UL/CSA Standard
A1006WD
D
GB Standard
A1064WD
H
NBR Standard
A1088WD
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 Only included with models that have a built-in printer (/B5)
3 Only included with DL850EVs that have the 12 VDC power supply (/DC option)
4 Only included with models that have a GPS interface (/C30)
Checking the Contents of the Package

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IM DL850E-03EN
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.
Features Guide & Users Manual.pdf DL850E/DL850EV ScopeCorder
Features Guide
IM DL850E-01EN
DL850E/DL850EV ScopeCorder
User’s Manual
IM DL850E-02EN
Communication Interface.pdf DL850E/DL850EV ScopeCorder
Communication Interface User’s Manual
IM DL850E-17EN
Real Time Math & Power Math.pdf DL850E/DL850EV ScopeCorder
Real Time Math/Power Math User’s Manual
IM DL850E-51EN
Acquisition Software.pdf DL850E/DL850EV ScopeCorder
Acquisition Software User’s Manual
IM DL850E-61EN
To view the PDF files above, you need Adobe Reader 5.0 or later.
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
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.
Checking the Contents of the Package

viii IM DL850E-03EN
Input Modules (Sold Separately)
To make sure that an input module is the module that you ordered, check the module name written on
it.
MODEL Name Abbreviation
701250 High-Speed 10 MS/s, 12-Bit Isolation Module HS10M12
701251 High-Speed High-Resolution 1 MS/s, 16-Bit Isolation Module HS1M16
701255 High-Speed 10 MS/s, 12-Bit Non-Isolation Module NONISO_10M12
701267 High-Voltage 100 kS/s, 16-Bit Isolation Module (with RMS) HV (with RMS)
701261 Universal (Voltage/Temp.) Module UNIVERSAL
701262 Universal (Voltage/Temp.) Module (with AAF) UNIVERSAL(AAF)
701265 Temperature, High Precision Voltage Isolation Module TEMP/HPV
701270 Strain Module (NDIS) STRAIN_NDIS
701271 Strain Module (DSUB, Shunt-Cal) STRAIN_DSUB
701275 Acceleration/Voltage Module (with AAF) ACCL/VOLT
701281 Frequency Module FREQ
720210 High-Speed 100 MS/s, 12-Bit Isolation Module HS100M12
720211 High-Speed 100 MS/s, 12-Bit Isolation Module HS100M12
720220 16-CH Voltage Input Module 16CH VOLT
720221 16-CH Temperature/Voltage Input Module 16CH TEMP/VOLT
720230 Logic Input Module LOGIC
720240 CAN Bus Monitor Module* CAN MONITOR
720241 CAN & LIN Bus Monitor Module* CAN & LIN
720243 SENT Monitor Module* SENT
720254 4-CH 1 MS/s, 16-Bit Isolation Module 4CH 1M16
* The CAN bus monitor, CAN&LIN bus monitor, and SENT monitor modules can be used on the DL850EV. They
cannot be used on the DL850E.
Top line: Model
Bottom line: Abbreviation
The location varies depending on the module.
701250
HS10M12
In this manual, input modules are referred to by their model names and abbreviations.
For example, the High-Speed 10 MS/s, 12-Bit Isolation Module is referred to as the 701250 (HS10M12).
However, if a module has already been referred to previously, it may be referred to only by its model
name (for example, 701250).
Note
To use the DL850E/DL850EV with 701250 and 701255 modules shipped between August 2006 and June
2007, you must update the module firmware. If error code 916 appears when you turn on the DL850E/
DL850EV, it may be necessary to update the firmware of the aforementioned modules. Prepare the module
serial numbers, and contact your nearest YOKOGAWA dealer. The dealer will update the module firmware
for a fee.
Checking the Contents of the Package

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Optional Accessories (Sold Separately)
The optional accessories below are available for purchase separately. Check that all contents are
present and undamaged.
• 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.
Name Model Safety standard Note Manual No.
Isolated probe 700929 1000 Vrms CAT II 10:1 safety probe for the 701250, 701251, 720210,
720211, and 720254
IM 700929-01E
701947 1000 Vrms CAT II 100:1 safety probe for the 701250, 701251, 720210,
720211, and 720254
IM 701947-01E
Current probe 701930 300 Vrms CAT III 150 Arms, DC to 10 MHz. Used by connecting to a
probe power terminal (/P4 option) or a probe power
supply (701934; sold separately).
IM 701930-01E
701931 300 Vrms CAT III 500 Arms, DC to 2 MHz. Used by connecting to a
probe power terminal (/P4 option) or a probe power
supply (701934; sold separately).
IM 701931-01E
701932 300 Vrms 30 Arms, DC to 100 MHz. Used by connecting to a
probe power terminal (/P4 option) or a probe power
supply (701934; sold separately).
IM 701932-01E
701933 300 Vrms 30 Arms, DC to 50 MHz. Used by connecting to a
probe power terminal (/P4 option) or a probe power
supply (701934; sold separately).
IM 701933-01E
10:1 passive probe 701940 — For non-isolated input on the 701255: 600 V or less
For isolated input other than above: 42 V or less
IM 701940-01E
702902 1000V (DC+ACpeak)
CAT II
10:1 safety probe, wide temperature range, for isolated
BNC input, for the 701250, 701251, 720210, 720211,
and 720254
IM 702902-01EN
Differential probe 700924 1000 Vrms CAT III Switchable between 1000:1 and 100:1
Measurable voltage: 1400 Vpeak (1000 Vrms)
IM 700924-01E
700925 1000V (DC+ACpeak)
CAT III
Switchable between 100:1 and 10:1
Measurable voltage: 500 Vpeak (350 Vrms)
IM 700925-01E
701926 1000 Vrms CAT III Switchable between 1000:1 and 100:1
Measurable voltage: 7000 Vpeak (5000 Vrms)
IM 701926-01E
1:1 BNC safety
adapter lead
701901 1000 Vrms CAT II For use with the 701250, 701251, 720210, 720211,
and 720254. Used with the following items (which
are sold separately): the 701954, 701959, 758922,
758929, or 758921.
—
Measurement lead 758933 1000 Vrms CAT III 1 m in length; for use with the 701267. Used with
the following items (which are sold separately): the
701954, 701959, 758922, 758929, or 758921.
—
Alligator clip (dolphin
type)
701954 1000 Vrms CAT III Two pieces in one set (red/black) —
Safety mini-clip (hook
type)
701959 1000 Vrms CAT II Two pieces in one set (red/black) —
Alligator clip adapter 758922 300 Vrms CAT II Two pieces in one set —
Alligator clip adapter 758929 1000 Vrms CAT II Two pieces in one set —
Fork terminal adapter 758921 1000 Vrms CAT II Two pieces in one set (red/black). For 4 mm screws. —
Cable1366926 — For measuring low voltage of less than or equal to 42
V
—
Banana–alligator clip
cable
366961 — For measuring low voltage of less than or equal to 42
V for the 701261, 701262, or 701265
—
High-speed logic
probe
700986 — 42 V or less, 8 bits, non-isolated, response speed of 1
μs
—
Isolated logic probe 700987 250 Vrms CAT II 8 bits, each channel isolated, response speed of 20 ms
(for AC)
IM 700987-01E
1 m logic probe 702911 — 8 bits, non-isolated —
3 m logic probe 702912 — 8 bits, non-isolated —
Isolated logic
measurement lead
758917 1000 Vrms CAT II Two pieces in one set. Used with the 758922 or
758929 adapter. The adapters are sold separately.
—
Checking the Contents of the Package

xIM DL850E-03EN
Name Model Safety standard Note Manual No.
External I/O cable 720911 — For external I/O —
1 m safety BNC
cable
701902 1000 Vrms CAT II — —
2 m safety BNC
cable
701903 1000 Vrms CAT II — —
Safety BNC-to-
banana adapter
758924 500 Vrms CAT II For the 701250, 701251, 701255, 720210, and 720211 —
Probe power supply 701934 — High current output power supply for external probes
(four outputs)
IM 701934-01E
Shunt resistor 438920 — 250 Ω ± 0.1% —
438921 — 100 Ω ± 0.1% —
438922 — 10 Ω ± 0.1% —
16-CH scanner box Accessory: Protection cover 1, Protection cover screw 1, Attaching plate 1, Binding screw 2
701953-
L1
— For the 720221; cable length: 1 m —
701953-
L3
— For the 720221; cable length: 3 m —
Cable 705926 — 1 m in length; for connecting the 720221 and 701953 —
705927 — 3 m in length; for connecting the 720221 and 701953 —
Bridgehead 701955 — NDIS, bridge resistance: 120 Ω IM 701955-01E
701956 — NDIS, bridge resistance: 350 Ω
701957 — DSUB, bridge resistance: 120 Ω, shunt-cal support IM 701957-01E
701958 — DSUB, bridge resistance: 350 Ω, shunt-cal support
Plug-on clip 701948 1000Vrms CAT II For the 700929/701947 IM 701948-01E
Long test clip 701906 1000Vrms CAT III For the 700924/701926 IM 701906-01E
Soft carrying case 701963 Has three pockets —
DC power cord
(Cigarette lighter
plug type)
701970 — For the DC power supply model (/DC) —
DC power cord
(Alligator clip type)
701971 — For the DC power supply model (/DC) —
GPS antenna A1058ER — GPS interface model (/C30) —
Sold individually.
1 Use cables (366926) that YOKOGAWA has been shipping since February 4, 1998. Cables (366926) shipped before this date
cannot be used in combination with the DL850E/DL850EV input modules.
Checking the Contents of the Package

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Logic probes
702911 (1 m)/702912 (3 m)
Safety BNC cable
(1 m) 701902
Safety BNC cable
(2 m) 701903
Safety
BNC-to-banana
adapter
758924
1:1 BNC safety
adapter lead
701901
1
Isolated logic probe
700987
Differential probe
700924
Cable
366926
Banana–alligator
clip cable
366961
Isolated probe
700929
Current probe
701930
Isolated probe
701947
Alligator clip
adapter
(rated 1000 V)
758929
High-speed logic probe
700986
10:1 passive probe
701940
Alligator clip
(dolphin type)
701954
Fork terminal
adapter
758921
Current probe
701931
Safety miniclip
(hook type)
701959
Bridgehead
701955 (NDIS, 120 Ω)
Bridgehead
701956 (NDIS, 350 Ω)
Bridgehead
701957 (DSUB, 120 Ω)
Bridgehead
701958 (DSUB, 350 Ω)
Soft carrying case
701963
Current probe
701933
Current probe
701932
Isolated logic
measurement lead
758917
External I/O cable
720911
Probe power supply
701934
Cable
705927 (3m)
Alligator clip
adapter
(rated 300 V)
758922
16-CH scanner box
7019532
Cable
705926 (1 m)
DC power cable
(Cigarette lighter plug type)
701970
DC power cable
(Alligator clip type)
701971
Measurement lead
7589331
Differential probe
700925
Differential probe
701926
GPS antenna
A1058ER
Plug-on clip
701948
Long test clip
701906
1 The 1:1 BNC safety adapter lead (701901) and the measurement lead (758933) must be used with one of the following
accessories (which are sold separately): alligator clip (dolphin type: 701954), safety miniclip (hook type: 701959),
alligator adapter (758922 or 758929), or fork terminal adapter (758921).
2 The length of the 16-CH scanner box (701953) cable varies depending on the 16-CH scanner box suffix code.
PROBE 1 PROBE 2 PROBE3 PROBE 4
OUTPUT
POWERSUPPLY
10:1 passive probe
(wide temperature range)
702902
Checking the Contents of the Package

xii IM DL850E-03EN
Spare Parts (Sold Separately)
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
Terminal block A1800JD 1 For the 720220 input module
Checking the Contents of the Package

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IM DL850E-03EN
Safety Precautions
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. 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.
Risk of electric shock
Protective ground or protective ground terminal
Ground or the functional ground terminal (do not use as the protective earth ground terminal)
Alternating 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.
Risque de choc électrique
Mise à la terre de protection ou borne de mise à la terre de protection
Borne de terre ou borne de terre fonctionnelle (ne pas utiliser cette borne comme prise de terre.)
Courant alternatif
Marche (alimentation)
Arrêt (alimentation)

xiv IM DL850E-03EN
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 power supply voltage matches the rated
supply voltage of the DL850E/DL850EV 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.
Precautions to Be Taken When Using the DC Power Supply (When using a DL850EV DC
power supply model)
• Make sure to perform protective earth grounding to prevent electric shock.
• Connect the DC power cord after checking that the power switch of the instrument is turned
OFF. If you connect the power cord with the power switch turned ON, sparks may be
emitted and can lead to fire.
Safety Precautions

xv
IM DL850E-03EN
Precautions to Be Taken When Using the Modules
• Do not apply input voltage exceeding the maximum input voltage, withstand voltage, or
allowable surge voltage.
• To prevent the possibility of electric shock, be sure to furnish protective earth grounding of
the DL850E/DL850EV.
• To prevent the possibility of electric shock, be sure to fasten the module screws. Otherwise,
the electrical protection function and the mechanical protection function will not be
activated.
• Avoid continuous connection under an environment in which the surge voltage may occur.
Precautions to Be Taken When Using the Probes
• To measure high voltage with the 701250 (HS10M12), 701251 (HS1M16), 720210 (HS100M12),
720211 (HS100M12), or 720254 (4CH 1M16), use the isolated probes (700929, 701947),
passive probes 702902, 1:1 safety cables (combination of 701901 and 701954), or differential
probes (700924, 700925, 701926).
• Be sure to connect the ground lead of the differential probe (700924, 700925, 701926) to
the functional grounding terminal on the right side panel of the DL850E/DL850EV before
connecting to the measurement target. Not doing so may cause high voltage to appear in
the BNC connector of the differential probe.
• When using the 701255 (NONISO_10M12), be sure to fasten the module screws.
Fastening the module screws activates the protection function and the non-isolation
function. It is extremely dangerous if you do not fasten the screws. Also, when you measure
high voltages above 42 V, be sure to use the passive probe 701940.
• The BNC portion of the passive probe 701940 is metal, so if you use it with isolated input (the
701250 (HS10M12), 701251 (HS1M16), etc.), for safety, be sure to only use it with voltages
at or below 42 V.(Do not connect voltage above 42 V to both the High and Low sides.)
For non-isolated inputs (701255 (NONISO_10M12), etc.), fasten the module screws as
described before.
• When you apply high voltages to the 701267 (HV (with RMS)), use a measurement lead
758933 and alligator clip 701954.
• The measurement category of the 701267 (HV (with RMS)) is 400V-CAT II on the low side
and 700V-CAT II on the high side. Use caution because the overvoltage tolerance differs
between the low and high sides.
Measurement Category
The measurement category of this instrument’s signal input terminals varies depending on the
modules that are installed. Use the instrument within the scope of the measurement category
that corresponds to the module specifications. Do not use the instrument outside the scope of
the measurement category that corresponds to the module specifications.
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.
CAUTION
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.
Safety Precautions

xvi IM DL850E-03EN
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 DL850E/DL850EV 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.
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
Connectez le conducteur de terre avant de raccorder le dispositif cible ou une unité de
commande externe. Avant de toucher le dispositif cible, mettez l’instrument hors tension, et
vérifiez qu’aucune tension ni aucun courant ne sont émis.
Précautions à prendre avec l’alimentation en courant continu (lors de l’utilisation d’un
DL850EV à alimentation en CC)
• Veillez à raccorder l’instrument à la terre pour éviter tout risque de choc électrique.
• Branchez le cordon d’alimentation CC après avoir vérifié que l’interrupteur d’alimentation
de l’instrument est sur OFF. Si vous reliez le cordon d’alimentation lorsque l’interrupteur
électrique est sur ON, des étincelles peuvent jaillir et provoquer un incendie.
Safety Precautions

xvii
IM DL850E-03EN
Précautions à prendre lors de l’utilisation des modules
• Ne pas dépasser les valeurs maximales de tension d’entrée, de tension de maintien ou de
surtension admissible.
• Pour éviter tout risque de choc électrique, toujours relier le DL850E/DL850EV à la terre.
• Pour éviter tout risque de choc électrique, toujours serrer les vis des modules, à défaut
de quoi les fonctions de protection électrique et de protection mécanique ne seront pas
activées.
• Éviter les connexions continues dans les environnements pouvant être soumis à surtension.
Précautions à prendre lors de l’utilisation de sondes
• Lors de la mesure de tensions élevées à l’aide du 701250 (HS10M12), 701251 (HS1M16),
720210 (HS100M12), 720211 (HS100M12) ou 720254 (4CH 1M16), utiliser une sonde
isolée (700929 ou 701947), un câble de sécurité 1:1 (701901 et 701954 conjointement) ou
une sonde différentielle (700924, 700925 ou 701926).
• Bien relier le fil de terre de la sonde différentielle (700924, 700925, 701926) à la borne
de mise à la terre opérationnelle, sur le panneau droit de DL850E/DL850EV avant de le
relier à la cible de la mesure. Le fait de ne pas respecter cette consigne risque d’entraîner
l’apparition d’une tension élevée au niveau du connecteur BNC de la sonde différentielle.
• Lors de l’utilisation du 701255 (NONISO_10M12), veillez à serrer les vis du module. Le
serrage des vis de module active la fonction de protection et celle de non-isolation. La
situation est extrêmement dangereuse lorsque les vis ne sont pas serrées. Lorsque vous
mesurez des hautes tensions supérieures à 42 V, veillez également à utiliser la sonde
passive 701940.
• La partie BNC de la sonde passive 701940 est en métal ; si vous l’utilisez avec l’entrée
isolée (la 701250 (HS10M12), 701251 (HS1M16), etc.), veillez à l’utiliser uniquement à
des tensions inférieures ou égales à 42 V pour des raisons de sécurité (ne reliez pas une
tension supérieure à 42 V sur les côtés Haut et Bas).
Pour les entrées non isolées (701255 (NONISO_10M12), etc.), serrez les vis du module
comme décrit ci-dessus.
• Lorsque vous appliquez de hautes tensions au 701267 (HV (avec RMS)), utilisez un
cordon de mesure 758933 et une pince crocodile 701954.
• La catégorie de mesure du 701267 (HV (avec RMS)) est 400 V-CAT II dans la partie basse
et 700V-CAT II dans la partie haute. Faites attention car la tolérance de surtension diffère
entre les côtés bas et haut.
Catégorie de mesure
La catégorie de mesure de ces bornes d’entrée de signal de l’instrument varie en fonction
des modules installés. Utilisez l’instrument dans les limites de la catégorie de mesure qui
correspondent aux spécifications du module. N’utilisez pas l’instrument en dehors des limites
de la catégorie de mesure qui correspondent aux spécifications du module.
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.
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.
Safety Precautions

xviii IM DL850E-03EN
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 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 Meters & Instruments
Corporation for this product in the EEA. To contact Yokogawa Europe B.V., see the separate list of
worldwide contacts, PIM 113-01Z2.