YOKOGAWA CT60 User manual

User's
Manual
The following symbols are used in this manual.
This symbol is used in conjunction with the word “WARNING” or “CAUTION.”
Ce symbole est accompagné des termes “AVERTISSEMENT” et “ATTENTION.”
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.
AVERTISSEMENT
Attire l’attention sur des gestes ou des conditions susceptibles de provoquer des
blessures graves (voire mortelles), et sur les précautions de sécurité pouvant
prévenir de tels accidents.
CAUTION Calls attention to actions or conditions that could cause light injury to the user or
damage to the instrument or the user’s data, and precautions that can be taken to
prevent such occurrences.
ATTENTION Attire l’attention sur des gestes ou des conditions susceptibles de provoquer des
blessures légères ou d’endommager l’instrument ou les données de l’utilisateur, et
sur les précautions de sécurité susceptibles de prévenir de tels accidents.
Note Calls attention to information that is important for proper operation of the instrument.
Safety Precautions
This product is designed to be used by a person with specialized knowledge.
Make sure to observe the following safety precautions when handling the current sensor. YOKOGAWA assumes
no liability for the customer’s failure to comply with these safety precautions. Before you use the current sensor,
read the measuring instrument’s manual to fully acquaint yourself with its specifications and handling.
This manual is an essential part of the product; keep it in a safe place for future reference.
The following symbols are used on this instrument.
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
Hot surface
Make sure to observe the following safety precautions to prevent electric shock, personal
injury, or damage to the instrument.
WARNING
• UsetheInstrumentOnlyforItsIntendedPurpose
This instrument is a current output type current sensor. Use the instrument only for
measuring current.
• Bewareofelectricshock.
• Donotperformmeasurementifthecaseisdamaged.
• Donotoperatetheinstrumentwithwethands,inarainyorhumidenvironment,orifany
water droplets are visible on it.
• Condensationmayappearifsuddenchangesintemperatureoccur.Ifthishappens,let
the instrument acclimatize to the new temperatures for at least one hour, then refrain from
using the instrument until confirming that there is no condensation.
• Donotdisassembletheinstrument.
The instrument should be disassembled by qualified personnel only.
• Usethecorrectpowersupply.
Ensure that the source voltage matches the voltage of the power supply before turning the
power ON.
• Donotuseuninsulatedmeasurementconductorsorcables.
Use conductors or cables with reinforced insulation.
• Makesurethatthesurfacetemperatureofmeasurementconductorsiswithinthe
instrument's operating temperature range.
• Althoughitiswell-insulated,donottouchtheinstrumentorsecondaryoutputcablewhile
voltage is being applied to the primary conductor.
• Connectthesecondarysignaloutputbeforesupplyingpowertotheinstrument.
• Donotdisconnectthesecondaryoutputwhilepowerisbeingsuppliedtotheinstrumentto
prevent electric shock or damage to the instrument.
• Donotapplyprimarycurrentbeforesupplyingpowertotheinstrumenttopreventelectric
shock or damage to the instrument.
• Donotinputexcessivecurrentasmalfunctionordamagemayresult.
• Donotallowvibrationstodisturbtheinstrumentafterithasbeensetinplaceasdamage
may result.
French
AVERTISSEMENT
• Utiliser l’instrument aux seules fins pour lesquelles il est prévu
Cet instrument est un capteur de courant du type de débit de courant. Utiliser l’instrument
uniquement pour mesurer le courant.
• Faireattentionauxchocsélectriques.
• Nepaseffectuerunemesuresileboîtierestendommagé.
• Nepasfairefonctionnerledispositifaveclesmainshumides,dansunenvironnement
pluvieuxouhumide,ousidesgouttelettesd’eausontvisiblesdessus
• Lacondensationpeuts’effectueretleschangementsbrusquesdetempératurese
produisent.Sicelaseproduit,laisserledispositifs’acclimaterauxnouvellestempératures
pendant au moins une heure, puis éviter de l’utiliser jusqu’à confirmer qu’il n’y a pas de
condensation.
• Nepasdémonterledispositif.
 Ledispositifdoitêtredémontéuniquementparunpersonnelqualifié.
• Vérifierl’alimentation.
S’assurer que la source de tension correspond à la tension de l’alimentation avant la mise
sous tension.
ThankyouforpurchasingtheAC/DCCurrentSensor.Toensurecorrectuse,pleasereadthismanual
thoroughly before beginning operation.
PleasefamiliarizeyourselfwiththefunctionsandcharacteristicsoftheAC/DCcurrentsensorpriorto
operation. After reading this manual, keep it in a safe place.
IMCT2000A-01EN
2nd Edition
IMCT2000A-01EN1/2
• Nepasutiliserdeconducteursoudecâblesdemesurenonisolés.
Utiliser des conducteurs ou des câbles avec isolation renforcée.
•S’assurer que la température de surface des conducteurs de mesure se situe dans la plage
de température de fonctionnement du dispositif.
•Bien qu’il soit bien isolé, ne pas toucher le dispositif ou le câble de sortie secondaire pendant
que la tension s’applique au conducteur primaire.
•Connecter la sortie du signal secondaire avant d’alimenter le dispositif.
•Ne pas débrancher la sortie secondaire lorsque l’alimentation électrique est fournie au
dispositif afin d’éviter tout risque de choc électrique ou d’endommagement de l’instrument.
•Ne pas appliquer de courant primaire avant d’alimenter le dispositif afin d’éviter tout risque
d’électrocution ou d’endommager l’instrument.
• Nepasentrerdecourantexcessif,carundysfonctionnementoudesdommagespeuventen
résulter.
•Ne pas laisser les vibrations perturber le dispositif après qu’il a été mis en place, car des
dommages peuvent en résulter.
1.Description
 Thisinstrumentisacurrentoutputtypecurrentsensorwitha2000:1currenttransformationratio
that performs transformation on the primary current. After familiarizing yourself with the performance
and functions of this instrument, you will be able to use it in conjunction with measuring instruments
from YOKOGAWA.
2. Checking the Contents of the Package
The current sensor consists of the following parts.
CT2000A
Model
Serial Number
MODEL Specifications
CT2000A Current transformation ratio is 2000:1
Standard Accessories
The instrument is shipped with the following accessories. Make sure that all accessories are present
and undamaged.
User’s manual
IMCT2000A-01EN CT2000A
AC/DCCurrentSensor
User’s Manual
Thismanual.Thismanualexplainsthe
handling precautions, basic usage, and
specifications of the probe.
IMCT2000A-01JA CT2000A
AC/DCCurrentSensor
TheJapaneseversionoftheabovemanual
IMCT2000A-92Z1 CT2000A
AC/DCCurrentSensor
DocumentforChina
The“EN”and“JA”inthemanualnumbersarethelanguagecode.
Contact information of Yokogawa offices worldwide is provided on the following sheet.
PIM113-01Z2 Inquiries Listofworldwidecontacts
Accessory (Sold Separately)
The optional accessory below is available for purchase separately. Use the accessory specified in
this manual. Moreover, use the accessory of this product only with Yokogawa products that specify
it as accessory.
Output connector B8200JQ
Accessory (sold separately) is not covered by warranty of this instrument.
3. Part Names
Front
Top
1 5
6 9
Pin assignment
Figure 1. Names of Parts and Pin Assignments
Primary conductor
feed-through hole
Conductor guide
Secondary connector
Pin No.
1
2
3
4
5
6
7
8
9
Signal
Output Return
[Do not connect]
GND Status
0 V Power Supply Input
–15 V Power Supply Input
Secondary Signal Output
[Do not connect]
Operation Status
+15 V Power Supply Input
Signal allocation of secondary
connector
(four M6)
Attachment screw holes
(four M6)
Attachment screw holes
1
2
3
Pin No.
1
2
3
Signal
Ip Test-
[Do not connect]
Ip Test+
Test winding connector
Test wiring connector
Pin assignment
Direction of current
Operation status LED
4. Operating Procedure
CAUTION
Ensure that the current flowing to the conductor of the object to be measured is within the measuring
range.Ifthecurrentexceedsthemeasuringrange,theinstrumentmayoverheatandgetdamaged.
French
ATTENTION
S’assurer que le courant qui s’achemine vers le conducteur de l’objet à mesurer se situe
dans la plage de mesure. Si le courant dépasse la plage de mesure, le dispositif peut
surchauffer et subir des dommages.
1.
Connect the secondary connector on the instrument to the current input terminal on the
measuringinstrument,andconnectto0V(common)and±15Vonthepowersupply.
2.
Set up the measuring instrument and power supply to match the specifications of the current
transducer. Carefully read the user’s manuals for your measuring instrument and power supply
to perform the correct procedure for making the connections.
Secondary connector
of the current sensor
4
5
9
6
Power supply
0 V(common)
–15 V
+15 V
Current input
terminal
Measuring instrument
Figure 2. Connection Example
1
* Make sure that the total load
resistance including measuring
instrument's internal resistance and
wiring resistance is within the
specification.
3.
Inserttheprimaryconductorintotheprimaryconductorfeed-throughholeontheinstrument.
Make sure that the direction of current flow matches the arrow on the instrument.
CT2000A
AC/DCCurrentSensor
2ndEdition:January2019(YMI)
AllRightsReserved,Copyright©2017,YokogawaTest&MeasurementCorporation
PrintedinJapan

Correct
Conductor
Primary current
Incorrect
Using an magnetic
-shielded conductor
Using two parallel
conductors
Current flows in
both directions
Direction of current
Figure 3. Insertion of a Conductor
4.
Check that power is being supplied to the instrument, and then apply the primary current.
5.
Read the measured values. The following calculation is used to determine the current flowing
through the primary conductor.
Example:Whentheoutputcurrentfromtheinstrument'ssecondaryconnector(pin6)is100mA.
 CT2000A:100mAx2000=200A
Note
• IftheoperationstatusLEDisoffevenwhenpowerisbeingsuppliedtotheinstrument,the
protection function may be activated. Immediately stop the primary current.
• Onlypassconductorsthroughtheprimaryconductorfeed-throughholeifthecurrentthatyou
want to measure is flowing through the conductors and their current directions are the same.
Correct measurements cannot be taken if you pass conductors with magnetic shielding or
conductorswhosecurrentdirectionsareoppositeofeachotherthroughthefeed-throughhole.
• Makesuretheprimarywiringandsecondarywiringdonotinterferewitheachother.The
secondary wiring may be affected by the primary wiring because it uses a very small current.
Make the secondary wiring as short as possible and maintain its distance from the primary
wiring, without allowing them to be parallel to each other. We recommend AWG24 or higher for
thesecondarywiringmaterial.Twisted-pairmaybebetterthanshieldedcableformeasurement
applications such as inverters.
•The instrument outputs current. Connect the instrument to a measuring instrument with
current input. To connect the instrument to a measuring instrument with voltage input, use an
appropriate shunt resistor to connect the instrument to the voltage input terminals.
•Configure your setup so that the load resistance of the measuring instrument connected to the
secondary signal output is within the specification range.
•Correctmeasurementsmaynotbepossibleinplaceswherethereisanextremelystrong
externalmagneticfieldbesidesthemagneticfieldsproducedbytheprimarycurrentofthe
object to be measured or where there is a strong electric field.
PowerOffIfAbnormalBehaviorOccurs
If you notice smoke or unusual odors coming from the instrument, immediately turn off the
measuring instrument supplying the power. Then, contact your nearest YOKOGAWA dealer.
Status circuit diagram
Active Low Output
Operation status
ICEmax : 30 mA
ICEmin : 2 mA
Collector
DC
Power
Supply
R
3
8
+
-
V+ : 4..+24 V
Rmin(kΩ) =
Rmax(kΩ) =
V+(V) - 0.4 V
30 mA
V+(V) - 0.4 V
2 mA
D-Sub
(9 pin)
Emitter
CT2000A USER SIDE
Photocoupler operation:
ON : CT2000A is OK
(normal mode)
OFF : CT2000A is not OK
Operation status output
Status Operation Status (8-pin) Output Note
Normal Lessthan0.7V TheLEDturnson.
Overloaded V+ TheLEDturnsoff.Alowfrequencysignalisoutput
as a secondary signal output.
Overload Protection
 TheoverloadoccurswhentheprimarycurrentIpexceedsatriplevelsuchthatthefluxgatedetector
becomes completely saturated and, consequently, the current sensor will switch from normal
operation to overload mode.
 ThistriplevelisguaranteedtobegreaterthanIpm(3000Apeak)anditsactualvaluedependson
operating conditions such as temperatures and measuring resistance.
 Duringtheoverloadmode,thecurrentsensorgeneratesandoutputsalowfrequencysignal.
The measuring operation resumes when the primary current returns in the measuring range
between –Ipn and +Ipn (2000Arms).
Test Winding Connector
The test winding connector is used to test the operation of the current sensor.
When a current is applied between the positive and negative Ip test pins, a current that corresponds
tothetestcurrentwindingnumberof200andcurrenttransformationratioof2000:1isoutputfrom
the secondary signal output pin.
 Example: When1AisappliedbetweenthepositiveandnegativeIppins,100mAisoutputfromthe
secondary signal output pin.
Note
To measure the current of the primary conductor that has been passed through the through hole,
donotconnectanythingtothetestwindingIp+orIp-pin.Ifconnected,errorsmaybeinducedin
the sensor output.
5. Specifications
Item Specification
Current Rating DC:0to2000A
AC:3000Apeak
Output Current Primaryratedcurrentat2000Ais1A.
Current Transformation Ratio 2000:1
DirectionofCurrent Per the arrow printed on the main unit.
Accuracy DC:±(0.05%ofreading+30μA)
50/60Hz:±(0.05%ofreading+30μA)sinewave
Standard Conditions
Voltage to earth: 0V
Conductor position: center
Conductor:φ25mm;length,300mmormore;straight
Accuracy warranty period 12months
Effect of Position of Conductor Add±(0.01%ofreading)
MeasurementBand(-3dB) DCto40kHz
Temperature Coefficient Inthe-40to18°C,28to85°Cranges:0.01%/°C
Max.AllowableContinuousInput 3000Apeak
DeratingofMax.AllowableInput Forthemaximumallowablecontinuouscurrentwithrespectto
frequency, see figure 4.
InstantaneousMax.AllowableInput
(0.1sec.orless,referencevalue)
10000Apeak
MaximumRatedVoltage 1000Vrms,CATIII
LoadResistance 0to1Ω(powersupplyvoltage:±14.25V,25°C)
Operating
environment
Temperature -40to85°C
Humidity 20to80%RH(nocondensation)
Altitude 2000 m or less
IMCT2000A-01EN2/2
Storage
environment
Temperature -40to85°C
Humidity 20to80%RH(Nocondensation)
Altitude 2000 m or less
ExternalDimensions Approx.230.5(W)x219.5(H)x75.5(D)mm
(excludingtheconnector,conductorguide,andprotrusions)
DiameterofPrimaryCurrentHole φ70mm
Secondary Connector D-Sub9pin
Test Wiring Connector M8circular3pin
Testcurrent:1Amax.
Number of test windings: 200
Weight Approx.4.2kg.
Power Supply Voltage ±(15V±5%)
MaximumRatedPowerConsumption Approx.35VA
Current Consumption (at Power
Supply Voltage)
Approx.(225mA+outputcurrent)
Recommended fastening torque
•Flatmounting M6×4steelscrews5.5Nm
M6×4steelscrews5.5Nm
•Straightmounting
Safety standard1Compliant standards
 EN61010-11000Vrms
Measurement Category: CAT III2
Pollution degree 23
Emissions Compliant standards
 EN61326-1ClassB,EN55011ClassB,Group1
Immunity Compliant standards
 EN61326-1Table2(forindustriallocations)
Environmental standard Compliant standards
 EN50581Monitoringandcontrolinstrumentsincludingindustrial
monitoring and control instruments.
1 AppliestoproductswithCEmarks.Forinformationonotherproducts,contactyournearestYOKOGAWAdealer.
2 ThisinstrumentismeasurementcategoryIIIproduct.DonotuseitforMeasurementCategoriesIV.
Measurement category O applies to measurement of other circuits that are not directly connected to a main power
supply.
 MeasurementcategoryIIappliestoelectricalequipmentthatispoweredthroughafixedinstallation,suchasa
wall outlet wired to a distribution board, and to measurement performed on such wiring.
Measurement category III applies to measurement of facility circuits, such as distribution boards and circuit
breakers.
Measurement category IV applies to measurement of power source circuits, such as entrance cables to buildings
and cable systems, for lowvoltage installations.
3 PollutionDegreeappliestothedegreeofadhesionofasolid,liquid,orgaswhichdeteriorateswithstandvoltageor
surfaceresistivity.Pollutiondegree2appliestonormalindooratmospheres(withonlynon-conductivepollution).
Figure 4. Derating of Primary Current by Frequency
Frequency [Hz]
Maximum Allowable Input Current [Arms]
1
10
100
1000
10000
1 10 100 1000 10000 100000
23℃85℃
190.5
145
45.3 153
204
230.5
65
69.5
75.5
219.5
Φ70+1
0
4-Φ7x9
hole
20
124.3
1.4
（2）
31
26
68.5
204 4-Φ7x9 hole
（2）
3.5
Figure 5. External Dimensions
Unless otherwise specified, tolerances are ±3% (however, tolerances are ±
0.3 mm when below 10 mm).
Unit: mm
6. Servicing
If you encounter any problems during use, or if the instrument does not appear to be operating
normally, contact your nearest YOKOGAWA dealer.
7. Warranty
Ifyouexperienceabreakdownintheinstrumentduetofaultymanufacturingoraccidentsduring
shipping, contact your nearest YOKOGAWA dealer.
8. Appendix
 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AuthorizedRepresentativeofYokogawaTest&MeasurementCorporation
in the EEA for this Product. To contact Yokogawa Europe B. V., see the separate list of worldwide
contacts,PIM113-01Z2.
 DisposingoftheInstrument
When disposing of the instrument, follow the laws and ordinances of your country or region.