Kyoritsu KEW 2055 Bruksanvisning

Kyoritsu Multimeter KEW 2055

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INSTRUCTION MANUAL

DIGITAL CLAMP METER

KEW 2055

１．Features

●

Designedtomeetinternationalsafetystandards.

IEC61010-1.IEC61010-031:2002&IEC61010-2-032

MeasurementCategory(CAT)IV600V

PollutionDegree2

●

Double molded main body provides comfortable



singlehandedgrip

●

DataHoldFunction

●

LCD Backlight function to facilitate working at

dimlylitsituations.

●

RELfunctiontoindicatemeasurementvariation.

(Current,voltage,Resistancemeasurement)

●

MIN/MAX function enables easy reading of min &

maxvalueduringmeasurement.

●

WithContinuity&DiodeCheckFunction

●

NCV

（

Non Contact Voltage

）

Function for wiring

check.

●

600Vinputprotection.

●

Sleepfunctiontoextendbatterylife.

●

WithBarGraph,6039counts

2. Safety Warnings

This instrument has been designed, manufactured and

testedaccordingtoIEC61010:Safetyrequirementsfor

Electronic Measuring apparatus, and delivered in

the best condition after passed the inspection. This

instruction manual contains warnings and safety

rules which must be observed by the user to ensure

safeoperation of the instrument and retain it in safe

condition.

Therefore, read through these operating instructions

beforeusingtheinstrument.

WARNING

●

Read through and understand the instructions

contained in this manual before using the

instrument.

●

Keep the manual at hand to enable quick

referencewhenevernecessary.

●

Theinstrumentistobeusedonlyinitsintended

applications.

●

U n d e r s t a n d a n d f o l l o w a l l t h e s a f e t y

instructionscontainedinthemanual.

Failure tofollow the instructions may cause injury,

instrument damage and/or damage to equipment

under test. Kyoritsu is by no means liable for

any damage resulting from the instrument in

contradictiontothiscautionarynote.

Thesymbol indicatedontheinstrumentmeansthat

theusermustrefertotherelatedpartsinthemanual

forsafe operation ofthe instrument. It isessential to

read the instructions wherever the  symbol appears

inthemanual.



DANGER is reserved for conditions and actions

that are likely to cause serious or fatal injury.



WARNING is reserved for conditions and actions

that can cause serious or fatal injury.



CAUTION is reserved for conditions and actions

that can cause injury or instrument damage.

●

Marks listed in the table below are used on this

instrument.

Usermustrefertothemanual.

Instrumentwithdoubleorreinforcedinsulation

Indicates that this instrument can clamp on

bare conductors when measuring a voltage

corresponding to the applicable measurement

category,whichismarkednexttothissymbol.

 DC

AC&DC

Thisinstrumentsatisfiesthemarkingrequirement

defined in the WEEE Directive (2002/96/EC).

This symbol indicates separate collection for

electricalandelectronicequipment.

DANGER

●

Never make measurement on a circuit in which

voltageoverAC600Vexists.

●

Do not attempt to make measurement in the

presenceof flammable gasses. Otherwise, the use

of the instrument may cause sparking, which can

leadtoanexplosion.

●

Transformer jaw tips are designed not to short

the circuit under test. If equipment under test

has exposed conductive parts, however, extra

precaution should be taken to minimize the

possibilityofshorting.

●

Neverattempttousetheinstrumentifitssurface

oryourhandiswet.

●

Do not exceed the maximum allowable input of

anymeasuringrange.

●

N e v e r o p e n t h e B a t t e r y  c o v e r d u r i n g a

measurement.

●



The instrument is to be used only in its intended

applications or conditions. Otherwise, safety

functionsequippedwiththeinstrumentdoesn



twork,

and instrument damage or serious personal injury

maybecaused.

●

Verify proper operation ona known source before

use or taking action as a result indication of the

instrument.

●

Keepyourfingersandhandsbehindtheprotective

fingerguardduringmeasurement.

WARNING

●

Never attempt to make measurement if any

abnormal conditions, such as broken case and

exposedmetalpartsarefoundontheinstrument.

●

Do not rotate the Function Switch while the test

leadsarebeingconnected.

●

Do not install substitute parts or make any

modification to the instrument. For repair or

re-calibration, return the instrument to your local

distributorfromwhereitwaspurchased.

●

Donot try to replace the batteries if the surface

oftheinstrumentiswet.

●

Disconnect all the cords and cables from the

object under test and power offthe instrument

before opening the Battery Cover for Battery

replacement.

●

Verify proper operation ona known source before

useortakingactionasaresultoftheindicationof

theinstrument.

●

Use appropriate personal protective equipment

such as insulating gloves, Insulating boots, and

safetyglasses.

●

Stop using the test lead if the outer jacket is

damaged and the inner metal or color jacket is

exposed.



CAUTION

●

SettheFunctionSwitchtoanappropriateposition

beforestartingmeasurement.

●

Firmlyinsertthetestleads.

●

Disconnectthetestleadsfromtheinstrumentfor

currentmeasurement.

●

Do not exposethe instrument to the direct sun,

hightemperatureandhumidityordewfall.

●

Altitude 2000m or less. Appropriate operating

temperatureiswithin0

℃

and40

℃

●

This instrument isn



t dust & water proofed. Keep

awayfromdustandwater.

●

Be sure to power off the instrument after use.

Whentheinstrumentwill notbein usefora long

period, place it in storage after removing the

batteries.

●

Use a cloth dipped in water or neutraldetergent

for cleaning the instrument. Do not use abrasives

orsolvents.

Measurement Category

To ensure safe operation of measuring instruments,

IEC 61010 establishes safety standards for various

electrical environments, categorized as O to CAT IV,

and called measurement categories. Higher-numbered

categories correspond to electrical environments with

greatermomentary energy,so a measuringinstrument

designedforCAT III environmentscanendure greater

momentaryenergythanonedesignedforCATII.

O

:Circuits which are not directly connected

tothemainspowersupply.

CAT II

:Electrical circuits of equipment connected

toanACelectricaloutletbyapowercord.

CAT III

:Primary electrical circuits of the

equipment connected directly to the

distribution panel, and feeders from the

distributionpaneltooutlets.

CAT IV

:The circuit from the service drop to the

service entrance, and to the power meter

andprimaryover-currentprotectiondevice

(distributionpanel).

3. Specification

3-1. Measuring range & accuracy

(accuracyguaranteedat23

℃ ±

℃

.humidity45

〜

85%)

ACCurrent600A,1000AFunction

Function Measuring

Range Accuracy

600A 0-600.0A

1.5%rdg

5dgt

(50/60Hz)

3.5%rdg

8dgt

(40-400Hz)

1000A 0-1000A

DCCurrent600A,1000AFunction

Function Measuring

Range Accuracy

600A

0-600.0A

1.5%rdg

5dgt

1000A

0-1000A

ACVoltageFunction



（

Auto-ranging,Inputimpedance:approx.10M

Ω）

Range Measuring

Range Accuracy

6/60/600V 1-600.0V

1.3%rdg

4dgt(50/60Hz)

3.0%rdg

5dgt(40

〜

400Hz)

DCVoltageFunction



（

Auto-ranging,Inputimpedance:approx.10M

Ω）

Range Measuring

Range Accuracy

600mV/6/

60/600V 0-600.0V

1.0%rdg

3dgt

Resistance

（

Continuity/DiodeCheck

）

Function

Range Measuring

Range Accuracy

600

/6k/

60k/600k

0-6M

Ω ±

1.0%rdg

5dgt

60M

6.00M-

60.00M

Ω±

5%rdg

8dgt

ContBuzzer 0-600.0

Thresholdvalue:60

Ω±



Diode Testvoltage:0-2V

Frequency/ DUTY Function

（

Auto-ranging f or

Frequency

）

Range Measuring

Range Accuracy

ACA 40Hz

−

400Hz

0.5%rdg

5dgt

ACV 1Hz

〜

10kHz

0.1-99.9%

(Pulsewidth/Pulseperiod)

2.5%rdg

5dgt

Note:Measurableinputsare:40Vrms@ACVor

60Arms@AC600A,350A@AC1000ARange

3-2. General Specification

●

Modeofoperation

:

∑mode

●

Display 

:max.6039counts



(Frequency:9999)&Bargraph

●



Over-range indication : "OL" displayed when exceeding

the measuring range.  (except for AC/DCV and 1000A

Function)

●

Rangeswitching :

Auto-ranging/Voltage,ResistanceRange

Singlerange/Continuity,Diodecheckand

DUTY

●

Samplerate

:threetimespersecond

●

Functionalconstruction:

OFF/ACA/DCA/ACV/DCV/



●

Keys  :

SELECT(AC/DCswitching&/

/ / ),REL

Hz/DUTY,MIN/MAX,HOLD/BackLight

●

Powersource :DC3V/R03(UM-4)x2pcs

●

Lowbatterywarning

:

" "markisdisplayedat

 

2.4V

0.15Vorless.

●



Temperature & humidity : 23

℃ ±

℃

, relative humidity



accuracyguaranteed85%orless(nocondensation)

●

Operatingtemperature:0

〜

℃

,relativehumidity

&humidityrange85%orless(nocondensation)

●

Storagetemperature :-20

〜

℃

,relativehumidity



&humidityrange85%orless(nocondensation)

●

Currentconsumption:approx.12mA

●

SleepFunction:Automaticallypoweredoffinabout

15minafterthelastFunctionswitchoperation.

Press any key or rotate the Function Switch from

OFFtoanypositiontoexitfromtheSleepstate.

●

Locationforuse

Outdooruse,Altitudeupto2000m

●

ApplicableStandards

IEC61010-1,61010-2-032,61010-2-033

MeasurementCATIV600VPollutiondegree2

IEC61010-031

EMC

：

EN61326-1

・

EN55022

・

EN61000-4-2(performancecriterionB)

・

EN61000-4-3(performancecriterionB)

●

RoHS

：

EN50581

●

OverloadProtection

CurrentRange :1200AAC/DC/10sec

VoltageRange :720VAC/DC/10sec

ResistanceRange :600VAC/DC/10sec

●

WithstandVoltage

6720VAC

（

TRMS50/60Hz

）

/5sec

(betweenJawsandelectricalcircuit/betweeninternal



circuitandenclosure)

●

InsulationResistance:10M

ormore/1000V

（

betweenelectricalcircuitandenclosure

）

●

Conductorsize

approx.40mm

●

Dimension

approx.254(L)

82(W)

36(D)mm

●

Weight:approx.:310g

●

Accessories

TestLeads Model7066A/1set

BatteryR03

（

UM-4

）

/2pcs

InstructionmanualEnglish,Japanese/1pce

CarriyngCaseModel9094/1pcs

3-3. Function Keys

The"

●

"markshowsavailablefunctionateachRange.

DCCurrentMeasurement

HOLD SELECT ZERO Hz/

DUTY MAX/

MIN

ACA

●●●●●

ACV

●

●●●

DCA

●●●

●

DCV

●

Ω●●●

●

---

●

---

4. Preparation for measurement

4-1. Checking Battery Voltage

Set the Function Switch to any position other than

OFF

".When thedisplayis clearwithout  "

BATT

" mark,

showing, battery voltage is enough. When the display

is blank or

 "

BATT

"  mark is indicated, replace the

batteriesaccordingtoSection7,BatteryReplacement.

CAUTION

The Sleep feature automatically powers the

instrumentoffinabout 15minafterthe lastswitch

or key operation. Therefore, the display may be

blankevenwiththeFunctionSwitchsettoaposition

other than  "

OFF

". To operate the instrument in this

case, turn the switch back to the  "

OFF

"  position,

thentoanyotherposition,orpressanykey.Replace

the batteries if nothing was displayed after above

operations.

4-2. Checking Switch Setting & Operation

Confirm the Function Switch is set to the correct

position, the instrument is set to the correct

measurementmode,

and the Data hold function is disabled. Otherwise,

desiredmeasurementcannotbemade.

5. Measurement

5-1. AC Current Measurement

DANGER

●

Never make measurement on a circuit in which

voltage over AC600V exists to avoid getting

electricalshock.

●

Transformer jaw tips are designed not to short

the circuit under test. If equipment under test has

exposedconductiveparts,however,extraprecaution

should be taken to minimize the possibility of

shorting.

●

Do not make measurement with the Battery Cover

removed.

●

Disconnect the test leadsfrom the instrument for

currentmeasurement.

●

Keep yourfingersand handsbehindthe barrieron

theinstrumentduringameasurement.

(1)Set the Function Switch to "

600A

" or "

1000A

"

position.

AChasbeenselectedbydefault;presstheSELECT

key, when DC has been selected, to change it to

AC.AC mark isdisplayed at theupper left onthe

display.

(2)Pressthetriggertoopenthetransformerjawsand

clampthemontotheoneconductorundertest,then

take the reading on the display. Pressing the "

Hz/

DUTY

" Key switches the indication in following

sequence.

AC Current

⇨

DUTY

Hz/DUTY

 Function requires 60A or more at AC600A

Rangeand350AormoreatAC1000Arange.

CAUTION

●

Max conductor size for KEW2055 is approx

dia. 40mm. During current measurement, keep

the trans former jaws fully closed. Other wise,

accuratemeasurementscannotbetaken.

5-2. DC Current Measurement

DANGER

●

Never make measurement on a circuit in which

voltage over DC600V exists to avoid getting

electricalshock.

●

DonotmakemeasurementwiththeBatteryCover

removed.

●

Keepyourfingersandhandsbehindthebarrieron

theinstrumentduringameasurement.

(1)Set the Function Switch to "

600A

" or "

1000A

"

position. AC has been selected by default; press

the SELECT key, when AC has been selected, to

changeittoDC.

DC mark is displayed at the upper left on the

display.

Barrier

O: Device which is

not directly

connected to the

mains power supply

Protectivefingerguard(Barrier)

：

It is a part providing protection against electrical

shock and ensuring the minimum required air and

creepagedistances.

Cap

：

UncappedconditionforCATIIenvironment

CappedconditionforCATIII/IVenvironments

TheCapshuldbeﬁrmlyattachedtotheprobes.

Whenthe instrument and the testlead are combined

andusedtogether,whicheverlowercategoryeitherof

thembelongstowillbeapplied.

Cap

Protective fingerguard

Produktspecifikationer

Varumärke:	Kyoritsu
Kategori:	Multimeter
Modell:	KEW 2055

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