AEMC SR661 User manual

AC CURRENT
OSCILLOSCOPE PROBE
SR661
ENGLISH User Manual

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. For recalibration, please
use our calibration services. Refer to our repair
and calibration section at www.aemc.com.
Serial #: ________________________________
Catalog #: 2113.49
Model #: SR661
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
www.aemc.com

Table of Contents
1. INTRODUCTION............................................................................... 2
1.1 International Electrical Symbols................................................3
1.2 DenitionofMeasurementCategories .....................................3
1.3 ReceivingYourShipment..........................................................3
1.4 OrderingInformation.................................................................4
1.4.1 AccessoriesandReplacementParts............................4
2. PRODUCT FEATURES ...................................................................... 5
2.1 Description................................................................................5
2.2 Compatibility .............................................................................5
2.3 Features....................................................................................6
3. SPECIFICATIONS............................................................................. 7
3.1 ElectricalSpecications ............................................................7
3.2 MechanicalSpecications ........................................................8
3.3 EnvironmentalSpecications....................................................9
3.4 SafetySpecications ................................................................9
3.5 TypicalResponseCurves .......................................................10
4. OPERATION .................................................................................. 13
4.1 CurrentMeasurement.............................................................13
5. MAINTENANCE ............................................................................. 14
5.1 Maintenance ...........................................................................14
5.2 Cleaning..................................................................................14
RepairandCalibration...........................................................................15
TechnicalandSalesAssistance ............................................................15
Limited Warranty ...................................................................................16
WarrantyRepairs...................................................................................16

2 AC Current Oscilloscope Probe Model SR661
CHAPTER 1
INTRODUCTION
WARNING
The safety warnings are provided to ensure the safety of
personnel and proper operation of the instrument. Read the
instruction completely.
• Usecautiononanycircuit:potentiallyhighvoltagesandcurrents
maybepresentandmayposeashockhazard.
• Donot usethe probeif damaged.Alwaysconnectthecurrent
probetothemeasuringdevicebeforeitisconnectedaroundthe
conductor
• Donotuseonnoninsulatedconductorwithapotentialtoground
greaterthan600VCATIIIpollution2.Useextremecautionwhen
clampingaroundbareconductorsorbusbars.
• Beforeeachuse,inspecttheprobe;lookforcracksinhousingor
outputcableinsulation.
• Donotuseclampinwetenvironmentorinlocationsthathazard-
ousgasesexist.
• Donotusetheprobeanywherebeyondthetactilebarrier.

AC Current Oscilloscope Probe Model SR661 3
1.1 International Electrical Symbols
This symbol signifies that the instrument is protected by double or rein-
forced 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 per-
mitted.
Probe fitted with an electronic output limiter providing protection against
voltage surges caused by the accidental opening of the probe secondary
circuit to 30V max. peak.
In conformity with WEEE 2002/96/EC.
1.2 Definition of Measurement Categories
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
equipmentappearstobedamaged,leaclaimimmediatelywiththecar-
rierandnotifyyourdistributoratonce,givingadetaileddescriptionofany
damage.Savethedamagedpackingcontainertosubstantiateyourclaim.

4 AC Current Oscilloscope Probe Model SR661
1.4 Ordering Information
ACCurrentOscilloscopeProbeModelSR661.................... Cat. #2113.49
Includes a user manual.
1.4.1 Accessories and Replacement Parts
MaleBanana-FemaleBNCAdaptor(XF-SS) .................... Cat. #2111.32

AC Current Oscilloscope Probe Model SR661 5
CHAPTER 2
PRODUCT FEATURES
2.1 Description
TheACCurrentOscilloscopeProbeModelSR661expandsoscilloscope
applicationsinindustrialorpowerenvironments,andisidealforanalysis
andmeasurementofdistortedcurrentwaveformsandharmonics.
TheModelSR661permitsaccuratedisplayandmeasurementofcurrents
from100mAto1000Arms,1Hzto100kHz(withcurrentderating)without
breaking into the circuit.A passive lter eliminates noise, ring on rapid
rising(di/dt)waveforms,andensuresaccuratescreendisplays.
Theprobeconnectsdirectlytoanoscilloscopethroughaninsulatedcoax-
ialcablewithaninsulatedBNC.
2.2 Compatibility
TheModelSR661iscompatiblewithanyanalogordigitaloscilloscopeor
othervoltage-measuringinstrumentwhichhasthefollowingfeatures:
• BNCinputconnector
• Rangecapableofdisplaying0.2to0.5Vperdivision,or2Vrange
• Minimuminputimpedanceof1MΩ

6 AC Current Oscilloscope Probe Model SR661
2.3 Features
4.37" (111mm)
3.98" (101mm)
2.25" (57mm)
1.22" (31mm)
8.50" (216mm)
1.71"
(43.5 mm)
1.38"
(35 mm)
1.77"
(45 mm)
3.90" (99 mm)
2.13"
(54.1mm)
1
2
3
5
4
6
1. Jawopeningof2.25"
2. Maximumdimensionofconductis2.13"(54mm)
3. TacticalBarrier.Alwayskeephandsbelowthisbarrieratalltimes.
4. Arrow indicates direction of current ow. Current ows in a positive
directionwhenittravelsfromsupplytoload.
5. Threepositionswitch
6. 6.5ft(2m)outputcable

AC Current Oscilloscope Probe Model SR661 7
CHAPTER 3
SPECIFICATIONS
3.1 Electrical Specifications
*Referenceconditions:23°C±3°K,20to75%RH,48to65Hz,externalmagneticeld
<40A/m,noDCcomponent,noexternalcurrentcarryingconductor,testsamplecentered.
Operating Range: 0.1to2000Apeak
Measurement Range: 100mAto1200Arms(2000Apeak)
Output Signal:mVoutputsignal(2Vpeakmax)
100mV/A: 10mAto20Apeak
10mV/A: 0.1Ato200Apeak
1mV/A: 1Ato2000Apeak
1mV/A, (1V at 1000A)
Range Accuracy Phase Shift
1 to 50A
≤1% ± 1mV
N/A
50 to 200A ≤3°
200 to 1000A ≤2°
1000 to 1200A ≤1°
Overload: 1200Afor40mnON,20mnOFF
10 mV/A, (1V at 100A)
Range Accuracy Phase Shift
0.1 to 5A
≤2% ± 5mV
N/A
5 to 20A ≤15°
20 to 100A ≤10°
100 to 120A ≤5°
Overload:120Acontinuous
100mV/A, (1V at 10 Arms)
Range Accuracy Phase Shift
0.1 to 0.5A
≤3% ± 10mV
N/A
0.5 to 2A N/A
2 to 10A ≤15°
10 to 12A
Overload: 12Acontinuous

8 AC Current Oscilloscope Probe Model SR661
Frequency Range (with current derating):
1Hzto100kHz(@-3dB)
Seetypicalresponsecurves(pages10-11)
Crest Factor:≤6
Load Impedance: ≥1MΩ@≤47pF
Rise/Fall Time: <40µS
Working Voltage:600VCATIII
Common Mode Voltage:600VCATIII
Inuence of Adjacent Conductor: <0.2mA/AAC
Inuence of Conductor Position in Jaw Opening:
0.02%ofReadingunder400Hz
Inuence of Frequency:
Range1mV/A: From10to1000Hz:<1%ofReading
 From1to10kHz:<2%ofReading
 From10to50kHz:<10%ofReading
 From50to100kHz:-3dB
Range10mV/A: From10to1000Hz:<5%ofReading
 From1to10kHz:<3%ofReading
 From10to50kHz:<20%ofReading
 From50to100kHz:-3dB
Range100mV/A: From10to1000Hz:<10%ofReading
 From1to10kHz:<5%ofReading
 From10to50kHz:<20%ofReading
 From50to100kHz:-3dB
3.2 Mechanical Specifications
Dimensions: 4.4x8.5x1.8"(111x216x45mm)
Weight:1.21lbs(550g)
Jaw Opening:2.25"(57mm)max
Maximum Cable Diameter:2.13"(54mm)
Maximum Conductor Size:
Cable:2.05"(52mm)
BusBar:1.95x.19"(50x5mm)
Case Protection:IP40(IEC529)

AC Current Oscilloscope Probe Model SR661 9
Drop Test:1m(IEC68-2-32)
Mechanical Shock:100g(IEC68-2-27)
Vibration: 5to15Hz,0.15mm(IEC68-2-6)
 15to25Hz,1mm
 25to55Hz,0.25mm
Output: InsulatedleadwithinsulatedBNCConnector,6ft(2m)
3.3 Environmental Specifications
Operating Temperature/RH:14°to122°F(-10°to50°C)
Storage Temperature/RH:-4°to158°F(-20to70°C)
Altitude:Non-operating:0to12,000m
 Operating:0to2000m
Operating Relative Humidity:0to85%@35°C
Inuence of Temperature: ≤0.15%/10K
Inuence of Humidity:10to90%:0.1%
3.4 Safety Specifications
E192383
Electrical:Doubleinsulationorreinforcedinsulationbetweentheprimary
orsecondaryandtheoutercaseofthehandleperEN61010-2-032.
600V,CATIII,PollutionDegree:2
Dielectric Strength: 5550V, 50/60Hz between primary, secondary, and
theoutercaseofthehandle
Electromagnetic Compatibility: EN 50081-1 Class B
 EN50082-2Electrostaticdischarge
IEC 1000-4-2
 RadiatedeldIEC1000-4-3
Fast transients IEC 1000-4-4
 Magneticeldat50/60HzIEC1000-4-8
*Specications are subject to change without notice

10 AC Current Oscilloscope Probe Model SR661
3.5 Typical Response Curves
1mV/A Range:
10 100 1000 10,000
100,000
-4.00
-5.00
1.00
0.00
-1.00
-2.00
-3.00
10 100 1000 10,000
100,000
-35.00
-40.00
5.00
-15.00
-20.00
-25.00
-30.00
-10.00
-5.00
0.00
Accuracy in %
Phase in °
Frequency (Hz)
Frequency (Hz)
Accuracy vs. Frequency
Phase Shift vs. Frequency
@ 10 A
@ 50 A
@ 10 A
@ 50 A

AC Current Oscilloscope Probe Model SR661 11
10mV/A Range:
10 100 1000 10,000
100,000
-25.00
-30.00
0.00
-5.00
-10.00
-15.00
-20.00
10 100 1000 10,000 100,000
-60.00
-70.00
10.00
-20.00
-30.00
-40.00
-50.00
-10.00
0.00
5.00
Accuracy in %Phase in °
@ 1 A
@ 5 A
@ 1 A
@ 5 A
Frequency (Hz)
Frequency (Hz)
Accuracy vs. Frequency
Phase Shift vs. Frequency

12 AC Current Oscilloscope Probe Model SR661
100mV/A Range:
10 100 1000 10,000 100,000
10 100 1000 10,000 100,000
-40.00
-45.00
-15.00
-20.00
-25.00
-30.00
-35.00
5.00
-10.00
-5.00
0.00
-40.00
-50.00
10.00
0.00
-10.00
-20.00
-30.00
20.00
30.00
40.00
@ 0.1 A
@ 0.5 A
@ 0.1 A
@ 0.5 A
Accuracy in %
Phase in °
Frequency (Hz)
Frequency (Hz)
Accuracy vs. Frequency
Phase Shift vs. Frequency

AC Current Oscilloscope Probe Model SR661 13
CHAPTER 4
OPERATION
4.1 Current Measurement
WARNING: Always connect the probe to the instrument before clamping onto
the circuit under test.
• Connect the Model SR661 to the proper input channel on the
oscilloscope.
• Beginwiththeleastsensitiverangeonthecurrentprobe(1mV/A)
• Selectthe0.5V/Divisionrangeontheoscilloscope.
• Clamptheprobeontheconductortobemeasuredandreadthe
currentowingdirectlyonyouroscilloscope.
(Remember to unclamp the probe from the conductor before discon-
necting it from your meter or instrument.)
You may also use your oscilloscope to amplify the signal while using
the1mV/Aproberange(whicho󰀨ersthebestaccuracyandleastphase
shift).
NOTE: It is possible to change the range on the current probe without remov-
ing the probe from the current carrying conductor, but it is important to
remember not to exceed the permissible peak ratings of 2000mV peak or
4000 mV peak to peak maximum. The peak ratings by range are: 20A peak
@ 100mV/A, 200A peak @ 10mV/A and 2000A peak @ 1mV/A.

14 AC Current Oscilloscope Probe Model SR661
CHAPTER 5
MAINTENANCE
5.1 Maintenance
WARNING
• Toensureoptimumperformance,itisimportanttokeeptheprobe
jawmatingsurfacescleanatalltimes.Failuretodosomayresult
inerrorinreadings.
• Formaintenanceuseonlyspeciedfactoryreplacementparts.
• Toavoidelectricalshock,donotattempttoperformanyservicing
unlessyouarequaliedtodoso.
• Toavoidelectricalshockand/ordamagetotheinstrument,donot
allowwaterorotherforeignsubstancesintothecase.
• Disconnecttheunitfromallcircuitsandtestcablesbeforeopen-
ingthecase.
• Usecautionwithmetallictoolsthatmayshortbatterypacks,power
supplies,etc.
5.2 Cleaning
• Tocleantheprobebody,useasoftclothdampenedinasolution
ofmilddetergentandwater.Tocleanthecore,openthejawand
cleanthe exposedcoresurfaceswithacottonswabdampened
with isopropyl alcohol (isopropanol) or ethyl alcohol (fotocol or
ethanol).Lubricatethejawsmatingsurfaceswithalightoil.
• Do not use chemicals containing benzine, benzene, toluene,
xylene,acetone,orsimilarsolvents.
• Donotimmersetheprobeinliquidsoruseabrasivecleaners.

AC Current Oscilloscope Probe Model SR661 15
Repair and Calibration
Toensurethatyourinstrumentmeetsfactoryspecications,werecommend
thatitbescheduledbacktoourfactoryServiceCenteratone-yearintervals
forrecalibration,orasrequiredbyotherstandardsorinternalprocedures.
For instrument repair and calibration:
You must contact our Service Center for a Customer ServiceAuthorization
Number(CSA#).Thiswillensurethatwhenyourinstrumentarrives,itwillbe
trackedandprocessedpromptly.PleasewritetheCSA#ontheoutsideofthe
shipping container. If the instrument is returned for calibration, we need to
knowifyouwantastandardcalibration,oracalibrationtraceabletoN.I.S.T.
(Includescalibrationcerticateplusrecordedcalibrationdata).
Ship To: ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments
15 Faraday Drive
 Dover,NH03820USA
 Phone:(800)945-2362(Ext.360)
  (603)749-6434(Ext.360)
 Fax: (603)742-2346or(603)749-6309
 E-mail:[email protected]
(Orcontactyourauthorizeddistributor)
Costsforrepair,standardcalibration,andcalibrationtraceabletoN.I.S.T.are
available.
NOTE: You must obtain a CSA# before returning any instrument.
Technical and Sales Assistance
Ifyouareexperiencinganytechnicalproblems,orrequireanyassistancewith
theproperoperationorapplicationofyourinstrument,pleasecall,mail,faxor
e-mailourtechnicalsupportteam:
 ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments
 200FoxboroughBoulevard
 Foxborough,MA02035USA
 Phone:(800)343-1391
  (508)698-2115
 Fax: (508)698-2118
 E-mail:[email protected]
 www.aemc.com
NOTE: Do not ship Instruments to our Foxborough, MA address.

16 AC Current Oscilloscope Probe Model SR661
Limited Warranty
TheACCurrentOscilloscopeProbeModelSR661iswarrantedtotheowner
foraperiodoftwoyearsfromthedateoforiginalpurchaseagainstdefectsin
manufacture.ThislimitedwarrantyisgivenbyAEMC®Instruments,notbythe
distributorfromwhomitwaspurchased.Thiswarrantyisvoidiftheunithas
beentamperedwith,abusedorifthedefectisrelatedtoservicenotperformed
byAEMC®Instruments.
Full warranty coverage and product registration is available on our
website at www.aemc.com/warranty.html.
Please print the online Warranty Coverage Information for your records.
What AEMC®Instruments will do:
Ifamalfunctionoccurswithinthewarranty period,youmayreturntheinstrument
tousforrepair,providedwehaveyourwarrantyregistrationinformation on
file or a proof of purchase.AEMC®Instruments will, at its option, repair or
replacethefaultymaterial.
REGISTER ONLINE AT: www.aemc.com
Warranty Repairs
What you must do to return an Instrument for Warranty Repair:
First, request a Customer ServiceAuthorization Number (CSA#) by phone
orbyfaxfromourServiceDepartment(seeaddressbelow),thenreturnthe
instrumentalong withthe signedCSAForm. Pleasewrite theCSA# onthe
outsideoftheshippingcontainer.Returntheinstrument,postageorshipment
pre-paidto:
Ship To: ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments
15FaradayDrive•Dover,NH03820USA
Phone:(800)945-2362(Ext.360)
(603)749-6434(Ext.360)
Fax: (603)742-2346or(603)749-6309
E-mail:[email protected]
Caution:Toprotectyourselfagainstin-transitloss,werecommendyouinsure
yourreturnedmaterial.
NOTE: You must obtain a CSA# before returning any instrument.

AC Current Oscilloscope Probe Model SR661 17
Notes:

10/17
99-MAN100130v13
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
15FaradayDrive•Dover,NH03820USA•Phone:(603)749-6434•Fax:(603)742-2346
www.aemc.com