YOKOGAWA WT310 Manual de usuario

User’s

Manual WT310/WT310HC/WT330

Digital Power Meter

Getting Started Guide

IM WT310-02EN

1st Edition

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Please allow us to serve you best by completing the product registration

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http://tmi.yokogawa.com/

PIM 103-03E

IM WT310-02EN

Thank you for purchasing the WT310, WT310HC, or WT330 Digital Power Meter (hereinafter, “WT310/

WT310HC/WT330” will refer to all of these products). The WT310/WT310HC/WT330 is a power

measurement instrument that can measure parameters such as voltage, current, and power.

This getting started guide primarily explains the handling precautions and basic operations of the

WT310/WT310HC/WT330. 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.

This manual is one of three WT310/WT310HC/WT330 manuals. Please read all manuals.

Manual Title Manual No. Description

WT310/WT310HC/WT330 Digital

Power Meter User’s Manual

IM WT310-01EN The manual explains all the WT310/WT310HC/WT330

features, except for the communication interface

features, and how to use them.

WT310/WT310HC/WT330 Digital

Power Meter Getting Started Guide

IM WT310-02EN This guide. Provided as a printed manual. The manual

explains the handling precautions and basic operations

of the WT310/WT310HC/WT330 and provides an

overview of its features.

WT310/WT310HC/WT330 Digital

Power Meter Communication

Interface User’s Manual

IM WT310-17EN This manual explains the WT310/WT310HC/WT330

communication interface features and how to use them.

PDF files of all the manuals above are included in the accompanying CD.

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 NT, Windows XP, Windows Vista, and

Windows 7 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.

• In this manual, the TM and ® 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.

Revisions

• January 2013 1st Edition

1st Edition: January 2013 (YMI)

ii IM WT310-02EN

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.

WT310/WT310HC/WT330

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.

The WT330 includes the WT332 and WT333.

WT310/WT310HC WT330 (Model: WT332/WT333)

Model Suffix Code Description

WT310 WT310 Digital Power Meter

One input element model

WT310HC WT310 Digital Power Meter

One input element/large current model

WT332 WT330 Digital Power Meter

Two input element model

WT333 WT330 Digital Power Meter

Three input element model

Power cord1-D UL/CSA Standard power cord (Part No.: A1006WD)

Maximum rated voltage: 125 V

-F VDE Standard power cord (Part No.: A1009WD)

Maximum rated voltage: 250 V

-Q BS Standard power cord (Part No.: A1054WD)

Maximum rated voltage: 250 V

-R AS Standard power cord (Part No.: A1024WD)

Maximum rated voltage: 250 V

-H GB Standard power cord (Part No.: A1064WD)

Maximum rated voltage: 250 V

-N NBR Standard power cord (Part No.: A1088WD)

Maximum rated voltage: 250 V

Communication interface -C1 GP-IB interface

(The instrument is equipped

with one of these.)

-C2 RS-232 interface

Options /C7 Ethernet Communication

/EX122.5 V/5 V/10 V external input

/EX2250 mV/100 mV/200 mV/500 mV/1 V/2 V external input

/G5 Harmonic measurement

/DA4 DA output (4CH); for the WT310 or WT310HC

/DA12 DA output (12CH); for the WT332 or WT333

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

that you are using it in.

2 A single instrument cannot have both the /EX1 and /EX2 options.

No. (Instrument number)

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

number.

iii

IM WT310-02EN

Standard Accessories

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

and undamaged.

D/A cable3

B9879SX

Current input protection

cover4

B8212BX

Current input protection

cover5

B8212FX

Rubber feet

A9088ZM

One set of manuals6

Safety terminal adapter set2

758931

UL/CSA Standard

A1006WD

VDE Standard

A1009WD

BS Standard

A1054WD

AS Standard

A1024WD

DFQR

Power cord (one cord that matches the suffix code is included)1

GB Standard

A1064WD

NBR Standard

A1088WD

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

that you are using it in.

2 Same number of sets as the number of installed input elements

WT310: One set with one hexagonal socket wrench

WT310HC: One set with one hexagonal socket wrench

WT332: Two sets with one hexagonal socket wrench

WT333: Three sets with one hexagonal socket wrench

3Included with models that have D/A output and remote control (/DA4 or /DA12)

4 For the WT310/WT310HC

5 For the WT332/WT333

6 For information on the types of printed manuals and manuals on the CD that are provided, see

page i.

Checking the Contents of the Package

iv IM WT310-02EN

CD-R

The CD-R contains the data listed below. To view the PDF user’s manuals, you need Adobe Reader 5.0

or later.

PDFs of the WT310/WT310HC/WT330 User’s Manuals

These manuals are in the Manuals folder.

English

• WT310/WT310HC/WT330 Digital Power Meter User’s Manual

IM WT310-01EN

• WT310/WT310HC/WT330 Digital Power Meter Getting Started Guide

IM WT310-02EN

• WT310/WT310HC/WT330 Digital Power Meter Communication Interface User’s Manual

IM WT310-17EN

Japanese

• WT310/WT310HC/WT330 Digital Power Meter User’s Manual

IM WT310-01JA

• WT310/WT310HC/WT330 Digital Power Meter Getting Started Guide

IM WT310-02JA

• WT310/WT310HC/WT330 Digital Power Meter Communication Interface User’s Manual

IM WT310-17JA

Installer for the WTViewerFreePlus Application Software (For the

WT310/WT310HC/WT330)

• WTViewerFreePlus_Installer.exe

• WTViewerFreePlus (folder)

• YKMUSB (folder)

PDF of the Manual for the WTViewerFreePlus Application Software

These manuals are in the Manuals folder.

English

• Application Software WTViewerFreePlus for WT310/WT310HC/WT330 User’s Manual

IM 760121-02E

Japanese

• Application Software WTViewerFreePlus for WT310/WT310HC/WT330 User’s Manual

IM 760121-02

WARNING

Never play this CD-R on an audio CD player. Doing so may cause loss of hearing or speaker

damage due to the large sounds that may be produced.

Checking the Contents of the Package

IM WT310-02EN

Optional Accessories (Sold separately)

The following optional accessories are available for purchase separately.

For information about ordering accessories, contact your nearest YOKOGAWA dealer.

Item Model/ Min. Q’ty Note

Part No.

External sensor cable B9284LK 1 For connecting to the WT310/WT310HC/WT330’s

external current sensor input connector.

Length: 0.5 m.

Measurement lead 758917 1 Two leads in one set. Used with the 758922 or

758929 adapter (sold separately). Length: 0.75 m.

Rated voltage: 1000 V.*

Safety terminal adapter set 758923 1 Two pieces in one set. Rated voltage 600 V.*

758931 1 Two pieces in one set. Rated voltage 1000 V.*

Alligator clip adapter set 758922 1 Two pieces in one set. For use with measurement

lead 758917.

Rated voltage 300 V.*

758929 1 Two pieces in one set. For use with measurement

lead 758917.

Rated voltage 1000 V.*

Fork terminal adapter set 758921 1 Two pieces in one set. For use with measurement

lead 758917.

Rated voltage 1000 V.* Rated current: 25 A.

Conversion adapter 758924 1 BNC-4 mm socket adapter. Rated voltage: 500 V.*

* The actual voltage that can be used is the lowest voltage of the WT310/WT310HC/WT330 and

cable specifications.

Measurement

lead

758917

Alligator clip

adapter set

758922

Alligator clip

adapter set

758929

Fork terminal

adapter set

758921

Safety terminal

adapter set

758923

External sensor

cable

B9284LK

Safety terminal

adapter set

758931

Conversion adapter

758924

Checking the Contents of the Package

vi IM WT310-02EN

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 WT310/WT310HC/WT330 is a power measurement instrument that can measure parameters

such as voltage, current, and power. Do not use this instrument for anything other than its intended

purpose.

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.

Electric shock, danger

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

terminal.)

Alternating current

Both direct and alternating current

ON (power)

OFF (power)

Power-on state

Power-off state

vii

IM WT310-02EN

Failure to comply with the precautions below could lead to injury

or death.

WARNING

Use the Instrument Only for Its Intended Purpose

The WT310/WT310HC/WT330 is a power measurement instrument that can measure

parameters such as voltage, current, and power. Do not use this instrument for anything other

than as a power measurement instrument.

Check the Physical Appearance

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

Use the Correct Power Supply

Make sure that the power supply voltage matches the instrument’s rated supply voltage and

that it does not exceed the maximum voltage range specified for the 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 Operate with Defective Protective Grounding or Fuses

Do not operate the instrument if the protective earth or fuse might be defective. Check the

grounding and the fuse before operating 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 Covers

Only qualified YOKOGAWA personnel should remove the instrument’s covers. 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.

Measurement Category

This instrument is a measurement category II product. Do not use it for measurement category

III or IV measurements.

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.

Safety Precautions

viii IM WT310-02EN

Connect Cables Correctly

Power meters can measure large voltages and currents directly. If you use a voltage

transformer or a current transformer together with this power meter, you can measure even

larger voltages or currents. When you are measuring a large voltage or current, the power

capacity of the item under measurement becomes large. If you do not connect the cables

correctly, an overvoltage or overcurrent may be generated in the circuit under measurement.

This may lead to not only damage to the power meter and the item under measurement, but

electric shock and fire as well. Be careful when you connect the cables, and be sure to check

the following points.

Before you begin measuring (before you turn the item under measurement on), check that:

•Cables have been connected to the power meter’s input terminals correctly.

Check that there are no voltage measurement cables that have been connected to the

current input terminals.

Check that there are no current measurement cables that have been connected to the

voltage input terminals.

If you are measuring multiphase power, check that there are no mistakes in the phase

wiring.

• Cables have been connected to the power supply and the item under measurement

correctly.

Check that there are no short circuits between terminals or between connected cables.

•The cables are connected firmly to the current input terminals.

• There are no problems with the current input terminals and the crimping terminals, such as

the presence of foreign substances.

During measurement (never touch the terminals and the connected cables when the item

under measurement is on), check that:

•There no problems with the input terminals and the crimping terminals, such as the

presence of foreign substances.

• The input terminals are not abnormally hot.

• The cables are connected firmly to the input terminals.

The terminal connections may become loose over time. If this happens, heat may be

generated due to changes in contact resistance. If you are going to take measurements

using the same setup for a long time, periodically check that the cables are firmly

connected to the terminals. (Be sure to turn both the power meter and the item under

measurement off before you check the connections.)

After measuring (immediately after you turn the item under measurement off):

After you measure a large voltage or current, power may remain for some time in the item

under measurement even after you turn it off. This remaining power may lead to electric

shock, so do not touch the input terminals immediately after you turn the item under

measurement off. The amount of time that power remains in the item under measurement

varies depending on the item.

See below for operating environment limitations.

CAUTION

This is a class A instrument designed for an industrial environment. 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

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