YOKOGAWA 700938 User manual

User’s

Manual 700938

Power Supply

IM 700938-01E

5th Edition

IM 700938-01E

Thank you for purchasing the 700938 Power Supply. This user’s manual

contains useful information about the instrument’s functions and operating

procedures as well as precautions that should be observed during use. To

ensure proper use of the instrument, please read this manual thoroughly before

operating it. Keep the manual in a safe place for quick reference whenever a

question arises.

List of Manuals

The following manuals are provided for the 700938 Power Supply.

Manual Title Manual No. Notes

700938 Power Supply

User’s Manual

IM 700938-01E This manual.

Model 700938 Power Supply

User’s Manual

IM 700938-92 Document for China

Model 700938 Power Supply

User’s Manual

IM 700938-93Z2 Document for Korea

The “E” and “Z2” in the manual numbers are the language codes.

Contact information of Yokogawa offices worldwide is provided on the following

sheet.

Document No. Description

PIM113-01Z2 List of worldwide contacts

Revisions

1st Edition: May 1999

2nd Edition: January 2001

3rd Edition: November 2005

4th Edition: November 2015

5th Edition: October 2017

5th Edition: October 2017 (YMI)

2IM700938-01E

Checking the Contents of the Package

If the worng instrument or accessories have been delivered, if some accessories

are missing or if they appear abnormal, contact the dealer form which you

purchased them.

700938 Power Supply (main unit)

Accessorries

• Manuals 1set

• Powercord 1

• Sparefuse(inthefuseholder) 1

• 100V,120V:F1.0AL/250V,20mm×5mmdia.

• 220V,240V:F0.5AL/250V,20mm×5mmdia.

Safety Precautions

This instrument is an IEC safety class I instrument (provided with terminal for

protective grounding).

The following general safety precautions must be observed during all phases

of operation, service and repair of this instrument. If this instrument is used in a

manner not specified in this manual, the protection provided by this 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.

To avoid injury, death of personnel or damage to the instrument, the

operator must refer to an explanation in the User’s Manual or Service

Manual.

 Functionalgroundingterminal(Thisterminalshouldnotbeusedasa

“Protective grounding terminal”.)

Alternating current

ON (power)

 OFF(power)

IM 700938-01E

Precautions

In order to ensure safe operation and to obtain maximum performance from the

unit, observe the cautions listed below.

WARNING

This unit is designed to be grounded through the three-wire power cord

provided. In order to prevent electric shock, etc., connect this power cord

to a grounded three-prong power receptacle.

CAUTION

• Donotsubjecttheunittovibrationsorshocksduringtransportor

handling. Be especially careful to avoid dropping the unit.

• Donotstoretheunitwhereitwillbeexposedtodirectsunlight,high

temperature, high humidity, or condensation. If exposed to such

conditions, the unit may be damaged, the insulation may deteriorate,

and the unit may no longer satisfy its specifications.

• Beforeusingtheunit,inspectitandchecktheoperationtomake

sure that the unit was not damaged due to poor storage or transport

conditions. If damage is found, contact your dealer or YOKOGAWA

representative.

• Whenunpluggingthepowercordfromthepowerreceptacleorfromthe

unit, grasp the plug, not the cord, in order to avoid damaging cable.

• Thisunitisnotconstructedtobewaterproofordustproof,sodonotuse

it in a very dusty environment or in one where it will get wet.

• Gentlywipedirtfromthesurfaceoftheunitwithasoftclothmoistened

with a small amount of water or mild detergent. Do not try to clean

the unit using cleaners containing organic solvents such as benzine,

alcohol, acetone, ether, ketones, thinners, or gasoline. They may cause

discoloration or damage.

Safety Precautions

4IM700938-01E

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.

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.

IM 700938-01E

The following symbol marks are used to attract the operator’s attention.

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

damage to the instrument. This symbol appears on the

instrument to indicate that the user must refer to the user’s

manual for special instructions. The same symbol appears in

the corresponding place in the user’s manual to identify those

instructions. In the manual, the symbol is used in conjunction

with the word “WARNING” or “CAUTION.”

WARNING 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.

CAUTION 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.

Note Calls attention to information that is important for proper

operation of the instrument.

6IM700938-01E

Contents

List of Manuals .................................................................................................................. 1

Checking the Contents of the Package .............................................................................2

Safety Precautions ............................................................................................................ 2

Sales in Each Country or Region ...................................................................................... 4

Product Overview ..............................................................................................................7

Names of Parts .................................................................................................................7

Measurement Procedure ..................................................................................................7

Preparations ..........................................................................................................7

Measurement Procedure .......................................................................................7

Description of Parts ...........................................................................................................9

Power Supply Receptacle ......................................................................................9

FuseReplacement ................................................................................................9

WhenSwitchingtheCurrentVoltage ................................................................... 10

WhenReplacingthePowerFuse .......................................................................10

Specifications .................................................................................................................. 11

Product Specifications ......................................................................................... 11

Standards Applying .............................................................................................. 11

Corrective Action to be Taken in the case of an Abnormality .......................................... 11

IM 700938-01E

Product Overview

This instrument is a power supply for probes.

Two power supply receptacles are provided on the front panel, and this allows

two probes to be used simultaneously.

Names of Parts

Made in Japan

MODEL

NO.

POWER SUPPLY

POWER

PROBE

1 2

Power

supply

receptacles

Fuse holderPower indicator

Power supply

connector

Voltage

viewing

window

Power

switch

OFF

Grounding terminal

Front view Rear view

Measurement Procedure

Preparations

CAUTION

Before turning on the power, make sure that the voltage of the power

supply being used matches the supply voltage indicated on the rear panel

of the unit.

1 Turn the power switch off and connect the power cord.

2 Insert the power supply plug for the DL Series wide band current probe

that you are using into the power receptacle on this instrument.

3 Turn the power switch ON, and check that the front panel power indicator

lights.

Measurement Procedure

Refer to the user’s manual of the current probe you are using (model 700937,

701930, 701931, 701932 or 701933).

Note

• WhenusingtheCurrentProve(Model701930,701931,701932or701933)

together with this power supply, you may not be able to use a second current

probe simultaneously depending on the value of the curernt being measured.

• Thecurrentconsumptionoftheprobeisdependentuponthevalueofthecurrent

being measured. Do not let the total current consumption of the probe exceed the

rated output current of the 700938. See figure 1.

8IM700938-01E

Measurement Procedure

700937

701930

701931

Current consumption (mA)

Current consumption (mA)Current consumption (mA)

Value of the current being measured (A)

AC (f=50Hz)

Positive current

Negative current

Positive current

Negative current

Positive current

Negative current

Positive current

Negative current

-200

-150

-100

-50

100

150

200

-15 -5

-10 105 15

-700

-600

-500

-400

-300

-200

-100

100

200

300

400

500

600

700

-300 -200 -100 0 100 200

300

-600

-500

-400

-300

-200

-100

100

200

300

400

500

600

-700-600-500-400-300-200

-100 0 100 200 300 400 500 600 700

701932

AC (f=50Hz)

-600

-500

-400

-300

-200

-100

100

200

300

400

500

600

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

701933

-500

-400

-300

-200

-200 -100

100

200

300

400

500

600

600 700

-600

-600-700 100

100

Figure 1 Current consumption* vs. current to be measured (typical)

*Total of positive and negative power

Current consumption (mA)

Value of the current being measured (A)

Positive current

Negative current

AC (f=50Hz)

IM 700938-01E

Description of Parts

Power Supply Receptacle

The pin assignment of the receptacle is shown in the following.

1 Not used

2 +12V

3 -12 V

4 GND

3 2

Fuse Replacement

Ifthefuseblows,replaceitasshowninFigure.

WARNING

• Inordertopreventelectricshock,alwaysdisconnectthepowercord

from the receptacle before replacing the fuse.

• Alwaysreplacethefusewithanewfuseofthespecifiedrating.

Never use a fuse of other than the specified rating, and never short

circuit the fuse holder to prevent an accident resulting in injury or death.

  100V,120V: F1.0AL/250V 20mmx5mmdia.

  220V,240V: F0.5AL/250V 20mmx5mmdia.

1 TurnOFFthepowerswitchandunplugthepowercord.

2 Insert a tool such as a flathead screwdriver into the fuse holder notch in

the power supply inlet, and use it to pry out the fuse holder.

3 WhenReplacingthePowerFuseReplacethepowerfusewithanother

fuseofthespecifiedrating.WhenSwitchingtheCurrentVoltage

(1) Remove the voltage selector box from the fuse holder, rotate the box

so that the desired voltage can be seen through the viewing window,

then reinsert it into the fuse holder. Confirm that the desired voltage

setting appears in the viewing window. (The display will be upside

down.)

(2) Replace the power fuse with another fuse of the specified rating.

4 Reinsert the fuse holder into the power inlet.

Screwdriver

Fuse holder

AC Inlet

Use a tool such as a

flathead screwdriver to

pry out the fuse holder.

10 IM700938-01E

When Switching the Current Voltage

220

100

240

120

Voltage

selector box

Fuse holder

Remove the voltage selector box, rotate

it so that the numbers visible through

the viewing window match the line voltage

that you are using, then reinsert the box

into the fuse holder.

Viewing window

When Replacing the Power Fuse

Fuse

Description of Parts

IM 700938-01E

Specifications

Product Specifications

Compatible sensors 700937 Current Probe 700939FETProbe

701920 Differencial Probe 701930 Current Probe

701931 Current Probe 701932 Current Probe

701933 Current Probe

Number of power supply connectors

Output voltage ±12V±0.5V

Operating temperature and humidity range

0to40°C(32to104°F),80%RHorless(no

condensation)

Storage temperature and humidity range

-10to50°C(14to122°F),80%RHorless(no

condensation)

Location for use Indoor, altitude up to 2000 m (6562 feet)

Rated output current 600 mA (the total value of both outputs)

Rated supply voltage 100VAC(120,220,and240Vrequiresspecification)

(Voltagefluctuationof10%fromtheratedsupply

voltage are taken into account.)

Ripple supply voltage 3mVp-p(attheratedoutputcurrent)

Rated supply frequency 50/60Hz

Maximum rated power 60VA(attheratedoutputcurrent)

External dimensions Approx.73(W)×110(H)×186(D)mm

Approx.2.87”(W)×4.33”(H)×7.32”(D)

Mass Approx. 1.1 kg

Approx. 38.8 oz.

Accessories Power cord, Instruction manual,

Spare fuse (in the fuse holder)

100V,120V:F1.0AL/250V,20mm×5mmdia.

220V,240V:F0.5AL/250V,20mm×5mmdia.

Standards Applying

Safety EN61010-1

Pollution Degree 2

EMC Emission EN61326-1 Class B

EN55011 Class B, Group 1

EN6100-3-2 Class B

EN6100-3-3

EMC standards of Australia and New Zealand

EN55011 Class B, Group 1

Immunity EN61326-1 Table 1 (Basic immunity requirement)

Corrective Action to be Taken in the case of an Abnormality

• Ifanmessageappearsonthescreen,refertothefollowingpages.

• Ifmaintenanceserviceisrequired,oriftheinstrumentstilldoesnotoperate

properly even if the proper corrective action has been taken, contact your

nearest YOKOGAWA representatives, listed on the back cover of this manual.

Symptom Possible Cause Corrective Action

The power cannot be turned ON. The fuse is blown. Replace the fuse.

YOKOGAWA 700938 User manual

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