AEMC MR561 User manual

AC/DC OSCILLOSCOPE
CURRENT PROBES MR461
MR561
ENGLISH User Manual
!
AC/DC CURRENT PROBE
Model MR 561
ON
OL
OFF
600A
60A
600V CAT III - 600A
!
OUTPUT:
600A: 1 mV/A
60A: 10 mV/A
AC/DC CURRENT PROBE
Model MR 461
ON
OL
OFF
1500A
150A
600V CAT III - 1500A
OUTPUT:
1500A: 1 mV/A
150A: 10 mV/A
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Statement of Compliance
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
certifies that this instrument has been calibrated
using standards and instruments traceable to
international standards.
We guarantee that at the time of shipping your
instrument has met its published specifications.
An NIST traceable certificate may be
requested at the time of purchase, or obtained
by returning the instrument to our repair and
calibration facility, for a nominal charge.
The recommended calibration interval for this
instrument is 12 months and begins on the date of
receipt by the customer.
Serial #: ________________________________
Catalog #: 1200.72 / 1200.73
Model #: MR461/ MR561
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
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Table of Contents
1. INTRODUCTION............................................................................... 3
1.1 International Electrical Symbols................................................3
1.2 DenitionofMeasurementCategories .....................................4
1.3 ReceivingYourShipment..........................................................4
1.4 OrderingInformation.................................................................4
1.4.1 AccessoriesandReplacementParts............................4
2. PRODUCT FEATURES ...................................................................... 5
2.1 Description................................................................................5
2.2 MR461Features .......................................................................6
2.3 MR561Features .......................................................................7
2.4 InstrumentDisplayCompatibility ..............................................8
3. SPECIFICATIONS............................................................................. 9
3.1 ReferenceConditions ...............................................................9
3.2 MR461Specications ...............................................................9
3.2.1 Electrical .......................................................................9
3.2.2 Mechanical..................................................................10
3.3 MR561Specications .............................................................10
3.3.1 Electrical .....................................................................10
3.3.2 Mechanical..................................................................11
3.4 CommonSpecications(MR461&MR561) ........................... 11
3.4.1 Electrical .....................................................................11
3.4.2 Mechanical..................................................................12
3.4.3 Safety..........................................................................13
4. OPERATION .................................................................................. 14
4.1 MakingMeasurements ...........................................................14
4.1.1 DCMeasurement........................................................14
4.1.2 ACMeasurement........................................................15
4.1.3 IndicatorLights:GreenLED .......................................15
4.1.4 MakingMeasurementswiththeConnector ................15
4.1.5 Auto-Off.......................................................................16
4.2 TipsForGettingtheBestAccuracy ........................................16
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4.3 TypicalResponseCurves .......................................................17
4.4 OperationExamples ...............................................................18
5. MAINTENANCE ............................................................................. 20
5.1 Maintenance ...........................................................................20
5.1.1 BatteryReplacement ..................................................20
5.1.2 Cleaning......................................................................20
Limited Warranty ...................................................................................22
WarrantyRepairs...................................................................................22
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AC/DCCurrentProbeModelsMR461andMR561 3
CHAPTER 1
INTRODUCTION
WARNING
Thesesafetywarningsareprovidedtoensurethesafetyofpersonnel
andproperoperationoftheinstrument.
•Read this instruction manual completely and follow all the safety
informationbeforeattemptingtouseorservicethis instrument.
•Use caution on any circuit: Potentially high voltages and currents
maybepresentandmayposeashockhazard.
•Read the safety specications section before using the Model
MR461orMR561.Neverexceedthemaximumworkingvoltagerat-
ingsgiven.
•Safetyistheresponsibilityoftheoperator!
•Neveropenthebackoftheinstrumentwhileconnectedtoanycircuit
orinput.
•ALWAYSconnecttheModelMR461orMR561tothedisplaydevice
beforeclampingtheprobeontothesampleundertest.
•Alwaysinspect theinstrument and leadprior touse. Replace any
defectivepartsimmediately.
•NEVERusetheModelMR461orMR561 onelectricalconductors
ratedabove600V.
1.1 International Electrical Symbols
This symbol signifies that the instrument is protected by double or reinforced
insulation.
This symbol on the instrument indicates a WARNING and that the operator must refer
to the user manual for instructions before operating the instrument. In this manual,
the symbol preceding instructions indicates that if the instructions are not followed,
bodily injury, installation/sample and product damage may result.
Risk of electric shock. The voltage at the parts marked with this symbol may be
dangerous.
This symbol refers to a type A current sensor. This symbol signifies that application
around and removal from HAZARDOUS LIVE conductors is permitted.
In conformity with WEEE 2002/96/EC
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4 AC/DCCurrentProbeModelsMR461andMR561
1.2 Definition of Measurement Categories
CAT I: Formeasurementsoncircuits notdirectlyconnectedtotheAC
supply wall outlet such as protected secondaries, signal level,
andlimitedenergycircuits.
CAT II: For measurements performed on circuits directly connected to
the electrical distribution system. Examples are measurements
onhouseholdappliancesorportabletools.
CAT III: For measurements performed in the building installation at
the distribution level such as on hardwired equipment in xed
installationandcircuitbreakers.
CAT IV: For measurements performed at the primary electrical supply
(<1000V) such as on primary overcurrent protection devices,
ripplecontrolunits,ormeters.
1.3 Receiving Your Shipment
Uponreceivingyourshipment,makesurethatthecontentsareconsistent
withthepackinglist.Notifyyourdistributorofanymissingitems.Iftheequip-
mentappearstobedamaged,leaclaimimmediatelywiththecarrierand
notifyyourdistributoratonce,givingadetaileddescriptionofanydamage.
Savethedamagedpackingcontainertosubstantiateyourclaim.
1.4 Ordering Information
AC/DCOscilloscopeCurrentProbeModelMR461............. Cat. #1200.72
AC/DCOscilloscopeCurrentProbeModelMR561............. Cat. #1200.73
Both models include a 9V battery and user manual.
1.4.1 Accessories and Replacement Parts
Banana/BNCconnectorXF-SS(4mmplugadaptor)........... Cat. #2111.32
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AC/DCCurrentProbeModelsMR461andMR561 5
CHAPTER 2
PRODUCT FEATURES
2.1 Description
The MR probes are a line of professionalAC/DC current probes. They
aredesignedtothelatestsafetyandperformancestandards.Twodiffer-
enthook-shapedjawsareoffered,bothpermittingtheuserto“pry”intoor
“hook”ontocables(willaccept2x500MCM)orsmallbusbars.
TheMRseriesusesHalleffecttechnology.Theelectronicsandbatteries
areself-containedinthehandles.TheoutputoftheAC/DCprobesis1mV/
Aand10mV/A.Anautozeropushbuttonensuresrapidandstablezeroing.
Thereisnooutputltering–TrueRMSwithDCcomponentsispossible.
Phaseshiftisexcellent,makingtheMRserieswellsuitedforpowerand
powerqualityapplications.
ModelMR461isaportable400AAC(600Apeak),600ADCcurrentprobe.
TheunithasproportionalmVoutputfordirectreadingsonhandheldand
benchtoposcilloscopes.
Model MR561 is a portable 1000AAC (1500A peak), 1500ADC current
probethataccuratelymeasuresACorDCcurrentwaveformsusingHall
effecttechnology.
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6 AC/DCCurrentProbeModelsMR461andMR561
2.2 MR461 Features
ON
OL
OFF
600A
60A
600V CAT III - 600A
!
OUTPUT:
600A: 1 mV/A
60A: 10 mV/A
AC/DC CURRENT PROBE
Model MR 461
Ø = 1.18" (30mm)
Cable max
Ø = 0.95" (24mm)
Dual Cable max
1
2
3
4
5
6
7
8
9
Figure 1
1. Jaws
2. Conductor
3. Protectivenon-slipguard
4. Zeroadjustmentbutton
5. BNC Connector
6. Coaxialcable6.5ft(2m)
7. Three-positionrange
 selectionswitch:
 •60A(10mV/A)
 •600A(1mV/A)
 •On/Off
8. Greenlight(onwhenbattery
 voltage≥6.5V)
9. Redlight(overrangeand
incorrectzeroadjustment)
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AC/DCCurrentProbeModelsMR461andMR561 7
2.3 MR561 Features
!
AC/DC CURRENT PROBE
Model MR 561
ON
OL
OFF
1500A
150A
600V CAT III - 1500A
OUTPUT:
1500A: 1 mV/A
150A: 10 mV/A
1
2
3
4
5
6
7
8
9
Ø = 1.6" (42 mm)
Cable max
1.96 x 0.19" (50 x 5 mm)
Dual Bus Bar max
Ø = 0.98" (25 mm)
Dual Cable max
Figure 2
1. Jaws
2. Conductor
3. Protectivenon-slipguard
4. Zeroadjustmentbutton
5. BNC Connector
6. Coaxialcable6.5ft(2m)
7. Three-positionrange
 selectionswitch:
 •150A(10mV/A)
 •1500A(1mV/A)
 •On/Off
8. Greenlight(onwhenbattery
 voltage≥6.5V)
9. Redlight(overrangeand
incorrectzeroadjustment)
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8 AC/DCCurrentProbeModelsMR461andMR561
2.4 Instrument Display Compatibility
The Model MR461 and MR561 current probes are compatible with any
hand-heldandbenchtoposcilloscope,whichhavethefollowingfeatures:
• BNCinput
• Rangeandresolutioncapableofdisplaying1mVofoutputper
ampofmeasuredcurrent
• Instrumentaccuracyof0.3%orbettertotakefulladvantageofthe
probeaccuracy
• Inputimpedanceof1MΩ/100pForgreater
Whentheprobeismakingameasurement,thecurrent-carryingconduc-
torisnotbrokenandremainselectricallyisolatedfromtheprobeoutput.
Asaresult,theprobeoutputcommonmaybeeitheroated(isolated)or
grounded.
Warning: User Safety
Alwaysuseanoscilloscope,voltmeterorotherdisplayingdevice,appro-
priatelyratedforsafetytothevoltageofthesamplebeingtested.
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AC/DCCurrentProbeModelsMR461andMR561 9
CHAPTER 3
SPECIFICATIONS
3.1 Reference Conditions
18°to28°C,20to75%RH,externalmagneticeld<40A/m,noexternal
currentcarryingconductor,testsamplecentered,1MΩ ≤100pFload,zero
adjustmentpriortomeasurement(DConly)DCto65Hz.Batteryvoltage
9V±0.1V.
3.2 MR461 Specifications
3.2.1 ELECTRICAL
Measurement Range:
60A Range:
0.2 to 40AAC(60APeak);0.4to60ADC
600A Range:
0.5 to 400AAC(600APeak);0.5to600ADC
Output Signal:
10mV/Aon60Arange;1mV/Aon600Arange
Accuracy:
60A Range:
0.5to40A:1.5%reading+0.5A;40to60ADConly:1.5%reading
600A Range:
0.5to100A:1.5%reading±1A;100to400A:2.0%reading
400to600DConly:2.5%reading
Phase Shift:
60A Range:
45to65Hz,10to20A:≤3.5°;20to40A:≤3°
600A Range:
45to65Hz,10to100A:≤3°;100to400A:≤2.5°
Overload: 1500ADC and 1000AACcontinuousupto1kHz
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10 AC/DCCurrentProbeModelsMR461andMR561
Noise:
60A Range:
DCto1kHz≤8mV;DCto5kHz:≤12mV;0.1Hzto5kHz:≤2mV
600A Range:
DCto1kHz≤1mV;DCto5kHz:≤1.5mV;0.1Hzto5kHz:≤500µV
Rise and Fall Time:
60A Range: ≤100µsfrom10to90%Vout
600A Range: ≤70µsfrom10to90%Vout
3.2.2 MECHANICAL
Humidity Inuence: 10to90%RH@referencetemperature≤0.5%
Maximum Cable Diameter: One1.18”(30mm)ortwo0.95”(24mm)or
twobusbars1.24x0.39”(31.5x10mm)
Dimensions (without zero knob):8.8x3.82x1.73”(224x97x44mm)
Weight: 15oz(440g)
3.3 MR561 Specifications
3.3.1 ELECTRICAL
Measurement Range:
150A Range:
0.2 to 100AAC(150APeak);0.4to150ADC
1500A Range:
0.5 to 1000AAC(1400APeak);0.5to1500ADC
Output Signal:
10mV/Aon150Arange;1mV/Aon1500Arange
Accuracy:
150A Range:
0.5to100A:1.5%reading±0.5A;
100 to 150ADConly:2.5%reading
1500A Range:
1to100A:1.5%reading±1A;100to800A:2.5%reading±0.5A
800to1000A:4%reading;1000to1200ADConly:4%reading
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AC/DCCurrentProbeModelsMR461andMR561 11
Phase Shift:
150A Range:
45to65Hz,10to20A:≤3.5°;20to100A:≤3°
1500A Range:
45to65Hz,10to200A:≤3°;200to1000A:≤2.5°
Overload: 1500ADC and 1000AACcontinuousupto1kHz
Noise:
150A Range:
DCto1kHz≤8mV;DCto5kHz:≤12mV;0.1Hzto5kHz:≤2mV
1500A Range:
DCto1kHz≤1mV;DCto5kHz:≤1.5mV;0.1Hzto5kHz:≤500µV
Rise and Fall Time:
150A Range: ≤100µsfrom10to90%Vout
1500A Range: ≤70µsfrom10to90%Vout
3.3.2 MECHANICAL
Humidity Inuence: 10to90%RH@referencetemperature≤0.1%
Maximum Cable Diameter: One1.6"(42mm)ortwo0.98"(25.4mm)or
twobusbars1.96x0.19"(50x5mm)
Dimensions (without zero knob):
9.31x3.82x1.73"(236.5x97x44mm)
Weight: 16oz(480g)
3.4 Common Specifications (MR461 & MR561)
3.4.1 ELECTRICAL
Frequency Range:DCto10kHz@-3dB
Load Impedance:>100kΩ/100pF
Insertion Impedance: 0.39mΩ@50Hz,58mΩ@1000Hz
Working Voltage: 600Vrms
Common Mode Voltage: 600Vrms
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12 AC/DCCurrentProbeModelsMR461andMR561
Inuence of Adjacent Conductor:
<10mA/Aat50Hzat23mmfromtheprobe
Inuence of Conductor in Jaw Opening:0.5%reading(DCto440Hz)
Battery: 9Valkaline(NEDA1604A,IEC6LR61)
Low Battery: GreenLEDturnsONwhenbatteryvoltage≥6.5V
Battery Life: Approx100Htypical
Overload Indication: RedLEDindicatesinputgreaterthantheselected
range
Auto-Off: 10 minutes (may be disabled at power-up by pressing Zero
buttonwhileturningon;greenLEDblinksthreetimestoindicatethatauto-
offisdisabled)
3.4.2 MECHANICAL
Operating Temperature Range: 14°to131°F(-10°to+55°C)
Storage Temperature Range: -40°to176°F(-40°to+80°C)
Temperature Inuence: 40mA/10Ktypical
≤300°ppm/°Kor0.3%/10°K
Operating Relative Humidity:
10°to35°C:90%±5%RH(withoutcondensation)
40°to55°C:70%±5%RH(withoutcondensation)
RH Inuence: 10-35°C:90%RHatreference
 Temperature:≤0.5%(MR461);≤0.1%(MR561)
Altitude: Operating:0to2000m
 Non-operating:0to12,000m
Zero Adjustment: ±10Aapprox.byincrementsof25to40mA
Case Protection: IP30perIEC529
Drop Test:
1.0mon38mmofoakonconcrete;testaccordingtoIEC1010
Mechanical Shock: 100G,testperIEC68-2-27
Vibration: TestperIEC68-2-6
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AC/DCCurrentProbeModelsMR461andMR561 13
Frequency Range: 5to15Hz,Amplitude:1.5mm
 15to25Hz,Amplitude:1mm
 25to55Hz,Amplitude:0.25mm
Handle: UL94V0
Jaws: UL94V0
Color:Darkgraywithredjaws
Output: Doubleinsulated6.5ft(2m)coaxialcablewithBNCconnector
3.4.3 SAFETY
Electrical:
Doubleinsulationorreinforcedinsulationbetweenprimary,secondaryand
outercaseofhandleperIEC1010-2-032.
600V,CategoryIII,PollutionDegree2
300V,CategoryIV,PollutionDegree2
7850VDC dielectric between primary or secondary and outer hand-held
case
Electromagnetic Compatibility:
• SusceptibilityinaccordancewithEN50082-2andEN50082-1
• ElectrostaticdischargeIEC1000-4-2
 Testvoltages:4kVlevel2incontact,aptitudecriteriaB
 8kVlevel3intheair,aptitudecriteriaB
• RadiatedFieldIEC 1000-4-3(1995)withmax. interferenceof5%of
themeasurementrange:3V/mlevel3,aptitudecriteriaA
• FasttransientsIEC1000-4-4(1995)
 Testvoltage:1kVlevel2,aptitudecriteriaB
• MagneticeldsatthefrequencyofthenetworktoIEC1000-4-8(1995)
withamax.distortionof0.5A:30A/m50Hzlevel4,aptitudecriteriaA
• EmissionsinaccordancewithEN50081-1
• RadiatedemissionthroughthecasetoEN55022(1994):classB
• ConductedemissiontoEN55022(1994):classB
*Specications are subject to change without notice
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14 AC/DCCurrentProbeModelsMR461andMR561
CHAPTER 4
OPERATION
4.1 Making Measurements
• Connectthecurrentprobetotheproperinputchannelontheoscil-
loscope.
• Beginwiththeleastsensitiverangeonthecurrentprobe(1mV/A).
• Selectthe0.5V/Divisiononyouroscilloscope.
• Turnoscilloscopepoweron.TurnontheModelMR461/561.The
greenLEDshouldbeon,theredLEDshouldbeoff.Ifthegreen
indicatordoesnotcomeonorgoesoffbeforetheprobehasoper-
atedfor10minutes,itisnecessarytoreplacethebattery.
• Afterapproximately10minutesofoperation,ifnoneofthecon-
trolbuttonshavebeenmanipulated,powerwillautomaticallyshut
off.
4.1.1 DC Measurement
• SelectDCpositionontheoscilloscope.
• “Zero”theprobe.Withtheprobedisconnectedfromtestsamples
(noconductorinprobejawwindow),presstheautozerobutton.
TheredLED (%)comeson forapproximatelythree secondsto
indicatethattheprobeiszeroing.IftheredLEDremainslit,this
indicates that zero has not been attained – repeat the zeroing
operation.Alternatively,youmay“zero”withtheoscilloscope.
• Forbestaccuracy,especiallyonlow-levelmeasurement,itisrecom-
mendedthatyouzerotheprobebeforeeachmeasurement.
• Clampthe probearound theconductor tobe tested.Theoscillo-
scopeshouldnowdisplaythemeasuredconductorcurrent.Aposi-
tivereadingindicatescurrentowinginthedirectionofthearrow
locatedonthesideofthejaw.Anegativereadingindicatescurrent
owintheoppositedirectionofthearrow.Multiplytheconversion
ratio(1mV/Aor10mV/A)timestheV/Divisionrangeonyouroscil-
loscopetogetthevalueofthecurrent.
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AC/DCCurrentProbeModelsMR461andMR561 15
4.1.2 AC Measurement
• SelecttheACpositionrangeontheoscilloscope.
• TheDCzeroadjustmentisnotrequiredwhenmeasuringACcur-
rent.
• Clamptheprobearoundtheconductortobetested.Theoscillo-
scopeshouldnowdisplaythemeasuredconductorcurrent.Apply
the conversion ratio (1mV/A or 10mV/A) times the V/Division
rangeonyouroscilloscopetogetthevalueofthepeakcurrent.
4.1.3 Indicator Lights: Green LED
• ThegreenLEDindicatesthattheprobeisonandthatthebattery
isgood.ThegreenLEDwillnotlightunderlowbatteryconditions.
Replacethe9VbatteryifthegreenLEDisnotlit.
• The red LED indicates a momentary or continuous overload of
theinstrument.ReadingstakenwhiletheredLEDisonorash-
ing should be considered inaccurate. Momentary or continuous
currentsexceeding60Apeakonthe60Arangeor600Apeakon
the600ArangefortheModelMR461,and150Apeakonthe150A
rangeor1500Aonthe1500ArangefortheModelMR561willtrig-
gertheredLED.
4.1.4 Making Measurements with the Banana/BNC
Connector
• TheprobesmaybeusedwithaDMMwiththeuseofaBanana/
BNCConnector(Cat.#2111.32).
• Plugtheprobeintothedisplaydevice(e.g.,DMM,logger).Note
thepolarityoftheprobeoutputbananaplugs(red=positive[+],
black=negative[-]).
• Selecttheappropriaterangeonthedisplaydevice.Notethatthe
probe’soutputsare1mV/Aand10mV/AACorDC.Notethemaxi-
mumcurrentcapabilityon10mV/Arange
• Turndisplaydevicepoweron.TurnontheModelMR:thegreen
LEDshouldbeon,andtheredLEDoff.Ifthegreenindicatordoes
notcomeonorgoesoffbeforetheprobehasoperatedfor10min-
utes,itisnecessarytoreplacethebattery.
• Afterapproximately10minutes ofoperation,ifnoneof thecontrol
buttonshavebeenmanipulated,powerwillautomaticallyshutoff.
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16 AC/DCCurrentProbeModelsMR461andMR561
4.1.5 Auto-Off
• TheModelsMR461andMR561haveanAuto-offfeaturewhich
turns offthe instrument after 10 minutes if no control has been
used.
• When the probe is switched off by this automatic function, the
switchmustrstbesettotheoffpositionbeforetheprobemaybe
poweredupagain.
• Auto-offmaybedisabledatpower-upbytheuser.Simplypress
theautozerobuttonatthesametimeasmovingtheswitchfrom
theOFFpositiontooneoftheranges.ThegreenLEDblinksthree
timestoindicatethattheauto-offisdisabled.
4.2 Tips For Getting the Best Accuracy
TheModelsMR461andMR561arecapableofmeasuringDCto10KHz
currentsoverawiderange.Herearesomekeyconsiderationsforgetting
themostaccuracyfromyourdisplayinstrument:
• WhenusingtheModelsMR461andMR561withanoscilloscope,
itisimportant toselectthe rangethatprovides thebestresolu-
tion.
• Makesure that probe jawmating surfaces arefree of dust and
contamination.
• Bewareofshort-circuitcurrents.Largein-rushDCcurrents(which
canoccurwhenpowerisrstappliedinacircuit)andlargehigh-
current transients may cause varying degrees of residual read-
ings. If in doubt of a particular reading, remove the probe from
theconductorundertestandchecktoseethatthedisplaydevice
returnstozero.Ifnot,itwillbenecessarytorezerotheprobe.
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AC/DCCurrentProbeModelsMR461andMR561 17
4.3 Typical Response Curves
Model MR461
110100 1000
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
Primary current in amperes
Typical Accuracy in DC
Error in %
Model MR561
Typical Accuracy in DC
1
2
0
-2
-4
-6
-8
10 1001000 10,000
Primary current in amperes
Accuracy in %
-10
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18 AC/DCCurrentProbeModelsMR461andMR561
4.4 Operation Examples
4.4.1 Oscilloscope Measurement Example for MR561
• ModelMR561on1500Arange(1mV/A)
• Conductorcarrying1400ApeakACwaveform
• ModelMR561connectedtooscilloscope
1000 A rms
0
1.4 V
-1.4 V
!
AC/DC CURRENT PROBE
Model MR 561
ON
OL
OFF
1500A
150A
600V CAT III - 1500A
OUTPUT:
1500A: 1 mV/A
150A: 10 mV/A
Figure 3
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