Siemens SMART 7KT User manual

SMART 7KT0110 and 7KT0120 Manual

MANUAL

SMART KT

Discrete Panel Meter

7KT0110 (VA meter) and

7KT0120 (VAF Meter)

SMART 7KT power monitoring devices

SMART 7KT0110 and 7KT0120 Manual

1. Introduction 3

2. Safety precautions 4

3. Technicalspecication 5

4. Installation 7

5. Connection 9

6. Conguration 12

7. Maintenance 16

SMART 7KT

Discrete Panel Meter

7KT0110 (VA meter) and

7KT0120 (VAF Meter)

Manual

Index

09/2022

SME7KT01X001

SMART 7KT0110 and 7KT0120 Manual

Introduction 

1.1 Purpose of this document

This present manual describes the SMART 7KT discrete panel meter.

It is intended for the use of:

• Planners

• Plantoperators

• Commissioningengineers

• Serviceandmaintenancepersonnel

1.2 Required basic knowledge

Ageneralknowledgeoftheeldofelectricalengineeringisrequiredtounderstandthismanual.

Knowledgeoftherelevantsafetyregulationsandstandardsisrequiredforinstallingandconnectingthedevice.

1.3 Components of the product

The carton for the products contain

1 SMART 7KT meter

1setofclamps(4clamps)formountingthemeteronthepaneldoor

1Gasket

1Operatinginstruction

7KT0110

Unit 1x nos. Gasket1xnos. SlidingClamp4xnos.

7KT0120

Unit 1x nos. Gasket1xnos. SlidingClamp4xnos.

SMART 7KT0110 and 7KT0120 Manual

Safety

precautions 

DANGER

Hazardous voltage will cause death or serious injury.Turnoffandlockoutall

powersupplybeforeworkingonthisdevice.

NOTICE

Installationandmaintenancemustbecarriedoutbyqualied

personnel.

ThisproducthasbeendesignedforenvironmentA.Use

ofthisproductinenvironmentBmaycauseunwanted

electromagneticdisturbancesinwhichcasetheusermay

requiretotakeadequatemitigationmeasures.

Risk of damage: Please ensure the proper isolation of meter

during the IR (Meggering) test.

Allsafetyrelatedcodications,symbolsandinstructionsthatappearinthisoperatingmanualorontheequipment

mustbestrictlyfollowedtoensurethesafetyoftheoperatingpersonnelaswellastheinstrument.Iftheequipmentis

notusedinamannerspeciedbythemanufactureritmightimpairtheprotectionprovidedbytheequipment.

Donotusetheequipmentifthereisanymechanicaldamage.

Ensurethattheequipmentissuppliedwithcorrectvoltage.

CAUTION:

1. Read complete instructions prior to installation and operation of the unit.

2. Riskofelectricshock.

3. Theequipmentinitsinstalledstatemustnotcomeincloseproximitytoanyheatingsources,oils,steam,

causticvaporsorotherunwantedprocessbyproducts.

SMART 7KT0110 and 7KT0120 Manual

Technical

speciﬁcation 

7KT0110 (VA meter) 7KT0120 (VAF meter)

PowerMonitoringDevicePanel

instrumentforvoltageand

currentLEDdisplayVaux:95Vto

240VACx/1or5A,Class1

PowerMonitoringDevicePanel

instrumentforvoltage,current

andfrequencyLEDdisplayVaux:

95Vto240VACx/1or5A,

Class1

Measurements

measuringprocedure

•forvoltagemeasurement True RMS True RMS

•forcurrentmeasurement True RMS True RMS

typeofmeasuredvaluedetection complete complete

voltagecurve Sinusoidal or distorted Sinusoidal or distorted

measurablelinefrequency

•initialvalue 45Hz 45Hz

•full-scalevalue 65Hz 65Hz

operatingmodeformeasuredvaluedetectionautomaticline

frequencydetection

–Yes

Supply voltage

designofthepowersupply SMPSpowersupply SMPSpowersupply

typeofvoltageofthesupplyvoltage AC AC

Degree of protection class

protection class IP on the front IP54 IP54

protection class IP of the terminal IP20 IP20

Suitability

suitability for operation Installation in stationary panels

in closed rooms

Installation in stationary panels

in closed rooms

Product Functions

product function

•voltagemeasurement Yes Yes

•currentmeasurement Yes Yes

•frequencymeasurement –Yes

Display and operation

designofthedisplay LED LED

heightofthedisplay 39mm 50mm

widthofthedisplay 40.5mm 45.4mm

colorofthebackgroundofthedisplay Black Black

nationallanguageonthedisplayscreenissupported EN EN

numberofkeys 2 2

Fault limits

referenceconditionformeteringaccuracy InaccordancewithIEC61557-12 InaccordancewithIEC61557-12

formulaforrelativetotalmeasurementinaccuracy

•formeasuredvariablevoltage Class1asperIEC61557-12 Class1asperIEC61557-12

•formeasuredvariablecurrent Class1asperIEC61557-12 Class1asperIEC61557-12

•formeasuredvariablefrequency –Class0.1asperIEC61557-12

SMART 7KT0110 and 7KT0120 Manual

7KT0110 (VA meter) 7KT0120 (VAF meter)

Measuring inputs

measurablesupplyvoltagebetweenLandNatACmaximumrated

value

240 V 240 V

measurablesupplyvoltagebetweenLandNatAC

•minimum 11 V 11 V

•maximum 300 V 300 V

measurablesupplyvoltagebetweenthelineconductorsatAC

maximumratedvalue

415V 415V

measurablesupplyvoltagebetweenthelineconductorsatAC

•minimum 19V 19V

•maximum 519V 519V

voltagemeasuringrangeextensionwithexternalvoltagetransformers upto500kV upto500kV

lineconductorsandneutralconductorsinternalresistanceforvoltage

measurement

1.12MΩ 1.12MΩ

measuringcategoryforvoltagemeasurement CATIII CATIII

measurable current 1A/5A 1A/5A

relativemeasurablecurrentatAC

•minimum 1 % 1 %

•maximum 120 % 120 %

currentmeasuringrangeextensionwithexternalcurrenttransformers Upto10kA Upto10kA

measuringcategoryforcurrentmeasurement CATIII CATIII

measurablelinefrequency –45...65Hz

Connections

type of electrical connection

•atthemeasurementinputsforvoltage screw-typeterminals screw-typeterminals

•atthemeasurementinputsforcurrent screw-typeterminals screw-typeterminals

Mechanical Design

mounting ushpanel-doormounted ushpanel-doormounted

sizeofPowerMonitoringDevice size96 size96

height 99mm 99mm

width 99mm 99mm

cut-out 91.5mmx91.5mm 91.5mmx91.5mm

depth 52mm 52mm

installation depth 49mm 49mm

netweight 207g 223g

mountingposition Vertical Vertical

Environmental conditions

ambienttemperatureduringoperation

•minimum -10°C -10°C

•maximum 55°C 55°C

ambienttemperatureduringstorage

•minimum -20°C -20°C

•maximum 75°C 75°C

relativehumidityat25°Cwithoutcondensationduringoperation

maximum

85% 85%

installationaltitudeatheightabovesealevelmaximum 2 000 m 2 000 m

degreeofpollution 2 2

IEC Standards

Description Standard

Accuracy IEC61557-12

EMCrequirements IEC61326-1

Degreeofprotectiontest(IP) IEC60529

Safetyrequirements IEC61010-1and

IEC61010-2-030

Certications

SMART7KTdiscretepanelmeterconformstoIEC

standards,IPCelectronicsassemblystandardand RoHS

SMART 7KT0110 and 7KT0120 Manual

Assembly 

Installation

For installing the meter

Preparethepanelcutoutwithproperdimensionsasshownbelow.

OUTLINE

Dimensions (in mm)

PANEL CUTOUT

Dimensions (in mm)

SMART 7KT0110 and 7KT0120 Manual

Installation Guidelines

1. Thisequipment,beingbuilt-in-type,normallybecomesapartofmaincontrolpanelandinsuchcasetheterminals

donotremainaccessibletotheenduserafterinstallationandinternalwiring.

2. Conductorsmustnotcomeincontactwiththeinternalcircuitryoftheequipmentorelseitmayleadtoasafety

hazardthatmayinturnendangerlifeorcauseelectricalshocktotheoperator.

3. Circuitbreakerormainsswitchmustbeinstalledbetweenpowersourceandsupplyterminalstofacilitate

power‘ON’or‘OFF’function.Howeverthisswitchorbreakermustbeinstalledinaconvenientpositionnormally

accessible to the operator.

4. Beforedisconnectingthesecondaryoftheexternalcurrenttransformerfromtheequipment,makesurethatthe

currenttransformerisshortcircuitedtoavoidriskofelectricalshockandinjury.

5. Theequipmentshallnotbeinstalledinenvironmentalconditionsotherthanthosementionedinthismanual.

6. Theequipmentdoesnothaveabuilt-in-typefuse.Installationofexternalfuseof0.5A,ClassgGtypeforelectrical

circuitryishighlyrecommended.

7. Removethescratch-guardfromthemeterdisplayduringcommissioningofthepanel.

Wiring Guidelines

1. Topreventtheriskofelectricshock,powersupplytotheequipmentmustbekeptOFFwhiledoingthewiring

arrangement.

2. Wiringshallbedonestrictlyaccordingtotheterminallayout.Conrmthatallconnectionsarecorrect.

3. Useluggedterminals.

4. Toreduceelectromagneticinterferenceuseofwireswithadequateratingsandtwistsofthesameinequalsize

shallbemadewithshortestconnections.

5. LayoutofconnectingcablesshallbeawayfromanyinternalEMIsource.

6. Cableusedforconnectiontopowersource,musthaveacross-sectionof1mm2to2.5mm2.Thesewiresshallhave

currentcarryingcapacityof6A.

7. Coppercableshouldbeused(StrandedorSinglecorecable).

For demounting the meter

Detail B

SMART 7KT0110 and 7KT0120 Manual

Connection 

3 Phase - 4 Wire

3Ø-4Wire,3CT’sand3PT’s

2 Phase - 3 Wire

2Ø-3Wire,2CT’sand2PT’s

3 Phase - 4 Wire (commonly used)

3Ø-4Wire,3CT’S

3 Phase - 3 Wire

3Ø-3Wire,2CT’sand2PT’s

Typical Wiring Diagram - SMART 7KT0110

SMART 7KT0110 and 7KT0120 Manual

Terminal Connections - SMART 7KT0110

3 Phase - 4 Wire

3Ø-4Wire,3CT’sand3PT’s

2 Phase - 3 Wire

2Ø-3Wire,2CT’sand2PT’s

Typical Wiring Diagram - SMART 7KT0120

1 Phase - 2 Wire

1Ø-2Wire,1CT’s

Typical Wiring Diagram - SMART 7KT0110

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