n DC/AC MICROPROBE K110 - AEMC...4 DC/AC MicroProbe Models K100 and K110 1.2 Definition of...
Transcript of n DC/AC MICROPROBE K110 - AEMC...4 DC/AC MicroProbe Models K100 and K110 1.2 Definition of...
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E N G L I S H
n DC/AC MICROPROBE K100K110
User Manual
• OFF• 1 mV/mA
ON OL
AEMCI N S T R U M E N T S
® DC/AC MicroProbeModel K100
!
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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. For recalibration, please use our calibration services. Refer to our repair and calibration section at www.aemc.com.
Serial #: ________________________________
Catalog #: 1200.67 / 2111.73
Model #: K100 / K110
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.d.b.a AEMC® Instrumentswww.aemc.com
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Table of Contents
1. INTRODUCTION ............................................................................... 31.1 International Electrical Symbols ................................................31.2 DefinitionofMeasurementCategories .....................................41.3 ReceivingYourShipment ..........................................................41.4 OrderingInformation .................................................................4
2. PRODUCT FEATURES ...................................................................... 52.1 Description ................................................................................52.2 ModelK100Features ...............................................................62.3 ModelK110Features ................................................................7
3. SPECIFICATIONS............................................................................. 83.1 ElectricalSpecifications ............................................................83.2 EnvironmentalSpecifications ....................................................93.3 MechanicalSpecifications ........................................................93.4 SafetySpecifications ................................................................93.5 TypicalFrequencyResponse .................................................10
4. OPERATION .................................................................................. 114.1 MakingMeasurementswiththeK100/K110 ...........................114.2 IndicatorLights-GreenandRedLEDs ..................................114.3 ModelK100OperationExamples ...........................................12
DCCurrentMeasurementExample(K100) ..............................12DCCurrentMeasurementExample-CurrentReversed ........12Two-WireSum-of-CurrentsExample(K100) ............................13Two-WireCurrentDifferentialExample(K100) .........................13OscilloscopeMeasurementExample(K100) ............................14MaximumStepDiscontinuityExample(K100) ..........................14
4.4 ModelK110OperationExamples ...........................................15MeasuringtheDCComponentofan(AC+DC)Waveform ....15MeasuringtheACComponentofan(AC+DC)Waveform ......15OscilloscopeMeasurementExample(K110) ............................16
4.5 TipsForMakingPreciseMeasurements ................................164.6 ResidualReadingsFollowingSevereOverloads ....................19
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5. MAINTENANCE ............................................................................. 205.1 Warning..................................................................................205.2 Battery Installation ..................................................................205.3 Cleaning ..................................................................................21
RepairandCalibration ...........................................................................22TechnicalandSalesAssistance ............................................................22LimitedWarranty ...................................................................................23WarrantyRepairs ...................................................................................23
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DC/AC MicroProbe Models K100 and K110 3
CHAPTER 1
INTRODUCTION
WARNING Thesesafetywarningsareprovidedtoensurethesafetyofpersonnelandproperoperationoftheinstrument.
• Readtheinstructionmanualcompletelyandfollowallthesafetyinformationbeforeattemptingtouseorservicethisinstrument.
• Usecautiononanycircuit:Potentiallyhighvoltagesandcur-rentsmaybepresentandmayposeashockhazard.
• ReadtheSafetySpecificationssectionpriortousingtheModelK100/K110.Neverexceedthemaximumvoltageratingsgiven.
• Safetyistheresponsibilityoftheoperator.
• NEVERopenthebackoftheinstrumentwhileconnectedtoanycircuitorinput.
• ALWAYSconnecttheModelK100/K110adaptertothedisplaydevicebeforeclampingtheprobeontothesampleundertest.
• ALWAYS inspect the instrument, probe, probe cable andoutput terminals prior to use. Replace any defective partsimmediately.
• NEVER use the Model K100/K110 on electrical conductorsratedabove300VCATII,EN61010-1.
1.1 International Electrical Symbols
Thissymbolsignifiesthattheinstrumentisprotectedbydoubleorreinforcedinsulation.Useonlyspecifiedreplacementpartswhenservicingtheinstrument.
This symbol on the instrument indicates aWARNING and thattheoperatormustrefertotheusermanualforinstructionsbeforeoperating the instrument. In thismanual, the symbol precedinginstructions indicates that if the instructions are not followed,bodilyinjury,installation/sampleandproductdamagemayresult.
Riskofelectricshock.Thevoltageatthepartsmarkedwiththissymbolmaybedangerous.
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4 DC/AC MicroProbe Models K100 and K110
1.2 Definition of Measurement Categories
CAT II: Formeasurements performed on circuits directly connected totheelectricaldistributionsystem.Examplesaremeasurementsonhouseholdappliancesorportabletools.
CAT III: For measurements performed in the building installation atthe distribution level such as on hardwired equipment in fixedinstallationandcircuitbreakers.
CAT IV: For measurements performed at the primary electrical supply(
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DC/AC MicroProbe Models K100 and K110 5
CHAPTER 2
PRODUCT FEATURES
2.1 Description
ModelK100andModelK110are lowcurrentmeasurement instrumentsthatfeatureacompact,highsensitivitycurrentprobe.Unlikeotherinstru-ments,theModelK100exhibitsawidedynamicoperatingrange,whichextendsfrombelow100µAto±4.5Apeak,fromDCto2.0kHz*,withouttheneedforranging.TheK110hasanoperatingrangeof100µAto±450mAPeak,fromDCto1500Hz.*
ModelsK100andK110aredesignedtobeoperatedinconjunctionwithadigitalmultimeter,oscilloscopeorrecordingdevice.TheMicroProbeout-putsthecurrentmeasuredintheformofavoltagethatistheimageofthecurrent,inshapeandamplitude.TheModelK100outputs1mVpermAofmeasuredcurrent.TheModelK110outputs10mVpermAofmeasuredcurrent.TotakeadvantageoftheModelK100highsensitivity,bestresultsareobtainedthrough4-1/2digit(ormore)DMMwitharelativezerofunc-tion.TheModelK110wasdesignedtoprovidetheoperatorwithenhancedlowcurrentlinearityandaccuracy,butislimitedto450mAPeakcurrent.
TheModelK100/K110alwaysoutputs a signal proportional to the totalcurrent(AC+DC)intheconductorundertest.Thishasproventobethemost versatile signal output format, and allows the user to isolate andmeasureDCandACcomponentsofmeasuredcurrentseparately, ifsodesired.Typicalapplicationsinclude4to20mAloopmeasurements,auto-motivecurrentapplications,benchtopelectroniccurrent consumption incircuits,andotherapplicationsrequiringverylowcurrentmeasurementsincrowdedareas.
* See Electrical Specifications
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6 DC/AC MicroProbe Models K100 and K110
2.2 Model K100 Features
8
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Figure 1
1.Positive:Redbananaplug(+)
2.Negative:Blackbananaplug(-)
3.PowerONindicator(greenLED)
4.OVERLOADindicator(redLED)
5.Powerswitch
6.Zeroadjustknob(pushinandturntozero)
7.Probewindowaperture
8.Probehandle
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DC/AC MicroProbe Models K100 and K110 7
2.3 Model K110 Features
®
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Figure 2
1.Positive:Redbananaplug(+)
2.Negative:Blackbananaplug(-)
3.PowerONindicator(greenLED)
4.OVERLOADindicator(redLED)
5.Powerswitch
6.Zeroadjustknob(pushinandturntozero)
7.Probewindowaperture
8.Probehandle
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8 DC/AC MicroProbe Models K100 and K110
CHAPTER 3
SPECIFICATIONS
3.1 Electrical Specifications
Model K100Current Range:0to±4.5ADC0to3Arms(sinusoidal)Output (Vout):1mV/mAResolution:DC:50µAtypicalAC:100µAtypicalAccuracy:DC:1%reading±200µAAC:2%reading±200µAOutput Noise:<100µV,DCto3kHzFrequency Response: DCto2kHz(@-3dBsine)Zero Adjust:±25mA
Model K110Current Range:0to±450mADC0 to 300mA rmsOutput (Vout): 10mV/mAResolution: DC:50µAtypical,AC:100µAtypicalAccuracy: DC:0.5%reading±150µAAC:0.8%reading±200µAOutput Noise:
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DC/AC MicroProbe Models K100 and K110 9
3.2 Environmental SpecificationsOperating Temperature: -14°to131°F(-10°to55°C)Storage Temperature:-40°to176°F(-40°to80°C)Humidity:
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10 DC/AC MicroProbe Models K100 and K110
3.5 Typical Frequency Response
Model K100
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3.0 A
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Figure 3
Model K110
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Dec
ibel
s (d
B)
Figure 4
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DC/AC MicroProbe Models K100 and K110 11
CHAPTER 4
OPERATION
4.1 Making Measurements with the K100/K110• Removeanyconductorfromwithintheprobejaws.• Plugtheelectronicmoduleintothedisplayingdevice(e.g.,DMM,oscil-
loscope).Notethepolarityofthemoduleoutputbananaplugs(red=positive[+],black=negative[-]).
• Select theappropriaterangeondisplayingdevice(e.g.,DMM,oscil-loscope).Notethatthemoduleoutputis1mV/mAforModelK100and10mV/AformodelK110.
• TurndisplayingdevicepowerON.TurnontheModelK100/K110(thegreenLEDshouldbeON,andtheredLEDOFF).
• Withtheprobedisconnectedfromtestsamples(noconductorinprobejawwindow), adjust the zero control (push in the knoband turn) toreadzerovoltsonthedisplayingdevice.Intheunlikelyeventwherethezeropoint isunobtainable, refer toResidual Readings Following Severe Overloads(§4.6)-theModelK100/K110probemaybetem-porarilymagnetized.
• Clamp theprobearound theconductor tobe tested.Thedisplayingdeviceshouldnowdisplaythemeasuredconductorcurrent.InDC,apositivereadingindicatescurrentflowinginthedirectionofthearrowontheprobe.Anegativereadingindicatescurrentflowintheoppositedirectionofthearrow.
4.2 Indicator Lights - Green and Red LEDs• TheGreenLEDindicatesthattheModelK100/K110isONandthatthe
batteryisgood.TheGreenLEDwillnotlightunderlowbatterycondi-tions.Replacethe9VbatteryifthegreenLEDisnotlit.
• TheRedLED indicatesamomentaryor continuousoverloadof theinstrument.Readingstakenwhile theRedLEDisONorFLASHINGshouldbeconsidered inaccurate.Momentaryorcontinuouscurrentsexceeding ± 4.7A forModelK100 and 470mA forModelK110, anddynamiccurrentswithlargestepdiscontinuitieswillcausetheredLEDtoturnON.
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12 DC/AC MicroProbe Models K100 and K110
4.3 Model K100 Operation Examples
DC Current Measurement Example (K100)• Conductorcarrying20.0mADCinthedirectionofthearrow• VoltmeterplacedinDCVoltsmode• Voltmeterdisplays20.0mV
20 mA DCPUSHDC Zero
20.0 mV
ACV DCV
Figure 5
DC Current Measurement Example - Current Reversed (K100)• Conductorcarrying20.0mADCinoppositedirectionofarrow• VoltmeterplacedinDCVoltsmode• Voltmeterdisplays-20.0mV
20 mA DCPUSHDC Zero
-20.0 mV
ACV DCV
Figure 6
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DC/AC MicroProbe Models K100 and K110 13
Two-Wire Sum-of-Currents Example (K100)• Twoconductorsinprobeaperture(noteorientations)• VoltmeterplacedinDCVoltsmode• Voltmeterdisplays18.0mV
PUSH
DC Zero
18.0 mV
ACV DCV
7 mA DC 11 mA DC
Figure 7
Two-Wire Current Differential Example (K100)• Twoconductorsinprobeaperture(noteorientations)• VoltmeterplacedinDCVoltsmode• Voltmeterdisplays-4.0mV
PUSH
DC Zero
-4.0 mV
ACV DCV
7 mA DC 11 mA DC
Figure 8
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14 DC/AC MicroProbe Models K100 and K110
Oscilloscope Measurement Example (K100)• Conductorcarryinga2ApeakACwaveform• ModelK100connectedtooscilloscope
0
To Oscilloscope
Current WaveformOscilloscope
Output
• OFF
• 1 mV/mA
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AEMCI N S T R U M E N T S
®DC/AC MicroProbe
Model K100
0
2.0 A
2.0 V
-2.0 V
Figure 9
Maximum Step Discontinuity Example (K100)• Conductorcarryingnon-sinusoidalAC• ModelK100connectedtooscilloscope• Maximumallowablestep-discontinuity2A
0
To Oscilloscope
Current Waveform
OscilloscopeOutput
• OFF
• 1 mV/mA
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AEMCI N S T R U M E N T S
®
DC/AC MicroProbe
Model K100
0
2A
2.0 V
-2.0 V
-2A
Note: Step Discontinuities
Figure 10
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DC/AC MicroProbe Models K100 and K110 15
4.4 Model K110 Operation Examples
Measuring the DC Component of an (AC+DC) Waveform (K110)• Conductorcarrying20.0mADC+15.0mAAC• VoltmeterplacedinDCVoltsmode• Voltmeterdisplays200.0mV
15 mA AC+
20 mA DC
PUSH
DC Zero
200.0 mV
ACV DCV
Figure 11
Measuring the AC Component of an (AC+DC) Waveform (K110)• Conductorcarrying20.0mADC+15.0mAAC• VoltmeterplacedinACVoltsmode• Voltmeterdisplays150.0mV
PUSH
DC Zero
150.0 mV
ACV DCV 15 mA AC
+20 mA DC
Figure 12
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16 DC/AC MicroProbe Models K100 and K110
Oscilloscope Measurement Example (K110)• Conductorcarryinga0.2ApeakACwaveform• ModelK110connectedtooscilloscope
0
To Oscilloscope
Current WaveformOscilloscope
Output
• OFF
• 10 mV/mA
ON OL
AEMCI N S T R U M E N T S
®DC/AC MicroProbe
Model K110
0
0.2 A
2.0 V
-2.0 V
-0.2 A
Figure 13
4.5 Tips For Making Precise MeasurementsTheModelK100/K110iscapableofmakingmeasurementsofDCandlowfrequencycurrentsoverawiderange.Herearesomekeyconsiderationsforgettingthemostaccuracyfromyourdisplayinginstrument:
• WhenusingtheModelK100/K110withameter,itisimportanttoselect the range thatprovides thebest resolution.Failure todothismayresultinmeasurementerrors.Theexamplesshownonthenextpageuseanordinary3-1/2digitDMMwiththeModelsK100andK110,tomeasure16.7mADC.
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DC/AC MicroProbe Models K100 and K110 17
Model K100
16.7mA
PUSH
DC Zero
20
V2V 200m
V
PUSH
DC Zero
.02 V
20
V2V 200m
V
PUSH
DC Zero20
V2V 200m
V
Resolution: 10mV
Display Error: 19.8%
Resolution: 1mV
Display Error: 1.8%
Resolution: 100µV
Display Error: 0%
Figure 14
Model K110
PUSH
DC Zero
20
V2V 200m
V
PUSH
DC Zero
20
V2V 200m
V
PUSH
DC Zero
20
V2V 200m
V
Resolution: 10mV
Display Error: 1.8%
Resolution: 1mV
Display Error: 0%
Resolution: 100µV
Display Error: 0%
16.7mA
Figure 15
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18 DC/AC MicroProbe Models K100 and K110
• Always zero theModel K100/K110 prior tomaking ameasure-ment.See§4.1forprocedure.
• Makesure thatprobe jawmatingsurfacesare freeofdustandcontamination. Contaminants cause air gaps between sensorhalves, making the Model K100/K110 susceptible to externalmagneticfieldswhichcancontributetomeasurementerrors.See§5.3forcleaningprocedure.
• Donotallowprobe jaws toabruptlysnapclosed fromtheopenstate. This can lead to residual readings. If this happens, theModelK100/K110willneedtoberezeroed.
• Bewareofshort-circuitcurrents.Largein-rushcurrents(whichcanoccurwhenpowerisfirstappliedinacircuit)andlargehigh-cur-renttransientsmaycausevaryingdegreesofresidualreadings.Ifindoubtofaparticularreading,removetheprobefromthecon-ductorundertestandchecktoseethatthedisplaydevicereturnszero.Ifnot,itwillbenecessarytorezerotheModelK100/K110.
• WhenusingtheModelK100/K110tomeasureACcurrents,keepinmindthemaximumcurrentratingsandthefrequencyresponsecurves shown in the electrical specifications section. Dynamiccurrents thatcontain largestepdiscontinuitiesand/or frequencyconstituents near or beyond the measurement passband aresubject tomeasurementserrorsandwaveformdistortion (oscil-loscopedisplay).IftheredLEDcomesonduringmeasurement,theMicroProbe’soutputsignalmaybeinerror.
ManyDVMsprovidenull(relative)measurementcapability.ADVMplacedinthenullmodedisplaysthedifferencebetweenastorednullvalueandtheinputsignal.
• YoucanuseaDVM’snullfunctioninplaceoftheexternalDCzerocontrol to cancel anyDCoffset from theK100/K110.TheDVMnullfunctionshouldbeenabledwiththeproberemovedfromtheconductorimmediatelybeforemeasurement.
• You canuseaDVM’snull function todisplay changes inmea-suredcurrentfromafixed(constant)level.Inthisapplication,theDVMnullfunctionisenabledwiththeprobeconnectedtothecon-ductor.
Whenmaking null (relative)measurements, the probe aperture current(notdisplayedcurrent)mustnotexceedthemaximumratingssetforthinthespecificationssection.
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DC/AC MicroProbe Models K100 and K110 19
4.6 Residual Readings Following Severe OverloadsLarge short-circuit and transient currents outside the operating rangeof theModelK100/K110maycause largeresidualreadings. Inextremecases,theModelK100/K110willnotzero.Ifthishappens:
• Removetheprobefromthetestconductor.
• Open the probe and release, allowing the jaws to snap back.Repeatthisstepseveraltimes.
• Rezerotheinstrumentbeforemakingsuccessivemeasurements.
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20 DC/AC MicroProbe Models K100 and K110
CHAPTER 5
MAINTENANCE
5.1 Warning Pleasemakesure thatyouhavealready readand fullyunderstand theWARNINGsectiononpage2.
• To avoid electrical shock, do not attempt to perform any servicingunlessyouarequalifiedtodoso.
• Toavoidelectricalshockand/ordamagetotheinstrument,donotgetwaterorotherforeignagentsintothecase.TurntheModelK100/K110OFFanddisconnecttheunitfromallcircuitsbeforeopeningthecase.
5.2 Battery InstallationYourModelK100/K110hasbeenshippedwithanew9Vbatteryinstalled.Toreplacethebattery:• Removeprobefromanyconductorandplaceitawayfromanyactive
conductors,circuitry,etc.• Unplugelectronicmodulefromdisplaydevice (e.g.DMM,oscilloscope).• Removethescrewsfromthebottomcoveroftheelectronicmodule.• Replacebatterywithanew9Valkalinetype.• Replacebottomcoverandre-attachwithscrews.
SCREWS BATTERY CLIP
RA
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G
30
0 V
, IE
C 1
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0-1
, C
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. II
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9 V
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0-4
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Figure 16
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DC/AC MicroProbe Models K100 and K110 21
5.3 CleaningTo ensure optimumperformance, it is important to keep the probe jawmatingsurfacescleanatalltimes.Failuretodosomayresultinincreasedearth’sfieldsusceptibilityandoverallerrorsinreadings.Thefollowingistherecommendedprocedureforcleaningtheprobesensor:
(1) Applyafewdropsofisopropylalcoholtoanordinarysheetofwhitephotocopypaper.
(2) Openprobetoexposethematingsurfacesofthesensorandinsertthesheetofpaperintothejaws.Allowthejawstoclose.
(3) Withthejawsclosed,pullfreetheendofthepaperthroughthejawsuntilitreleases.
(4) Repeatstep(3)severaltimes,usinganew(dry)sectionofpapereachtime.
(5) Openprobeandinspectmatingsurfaces.Theyshouldbefreeofdustparticlesoranyothercontamination.Otherwise,repeatthecleaningprocessstartingagainatstep(1).
ALCOHOL
1
2
3
4
Figure 17
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22 DC/AC MicroProbe Models K100 and K110
Repair and Calibration
Toensurethatyourinstrumentmeetsfactoryspecifications,werecommendthatitbescheduledbacktoourfactoryServiceCenteratone-yearintervalsforrecalibration,orasrequiredbyotherstandardsorinternalprocedures.
For instrument repair and calibration:Youmust contactourServiceCenter foraCustomerServiceAuthorizationNumber(CSA#).Thiswillensurethatwhenyourinstrumentarrives,itwillbetrackedandprocessedpromptly.PleasewritetheCSA#ontheoutsideoftheshipping container. If the instrument is returned for calibration,weneed toknowifyouwantastandardcalibration,oracalibrationtraceabletoN.I.S.T.(Includescalibrationcertificateplusrecordedcalibrationdata).
Ship To: ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments 15 Faraday Drive Dover,NH03820USA Phone:(800)945-2362(Ext.360) (603)749-6434(Ext.360) Fax: (603)742-2346or(603)749-6309 E-mail:[email protected]
(Orcontactyourauthorizeddistributor)Costsforrepair,standardcalibration,andcalibrationtraceabletoN.I.S.T.areavailable.NOTE: You must obtain a CSA# before returning any instrument.
Technical and Sales Assistance
Ifyouareexperiencinganytechnicalproblems,orrequireanyassistancewiththeproperoperationorapplicationofyourinstrument,pleasecall,mail,faxore-mailourtechnicalsupportteam:
ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments 200FoxboroughBoulevard Foxborough,MA02035USA 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.
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DC/AC MicroProbe Models K100 and K110 23
Limited Warranty
TheModelsK100andK110arewarrantedtotheownerforaperiodof twoyearsfromthedateoforiginalpurchaseagainstdefectsinmanufacture.Thislimitedwarranty isgivenbyAEMC® Instruments,notby thedistributor fromwhomitwaspurchased.Thiswarrantyisvoidiftheunithasbeentamperedwith,abusedor if thedefect is related toservicenotperformedbyAEMC® 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:Ifamalfunctionoccurswithinthewarranty period,youmayreturntheinstrumenttous forrepair,providedwehaveyourwarrantyregistration informationonfile or a proof of purchase.AEMC® Instrumentswill, at its option, repair orreplacethefaultymaterial.
REGISTER ONLINE AT:www.aemc.com
Warranty Repairs
What you must do to return an Instrument for Warranty Repair: First, request aCustomerServiceAuthorizationNumber (CSA#) by phoneorbyfaxfromourServiceDepartment(seeaddressbelow),thenreturntheinstrumentalongwith thesignedCSAForm.Pleasewrite theCSA#on theoutsideoftheshippingcontainer.Returntheinstrument,postageorshipmentpre-paidto:
Ship To: ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments15FaradayDrive•Dover,NH03820USAPhone:(800)945-2362(Ext.360)
(603)749-6434(Ext.360)Fax: (603)742-2346or(603)749-6309E-mail:[email protected]
Caution:Toprotectyourselfagainstin-transitloss,werecommendyouinsureyourreturnedmaterial.
NOTE: You must obtain a CSA# before returning any instrument.
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Notes:
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09/17
99-MAN100091v14
Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments15FaradayDrive•Dover,NH03820USA•Phone:(603)749-6434•Fax:(603)742-2346
www.aemc.com
INTRODUCTIONPRODUCT FEATURES2.1Description2.2Model K100 Features2.3Model K110 Features
SPECIFICATIONS3.1Electrical Specifications3.2Environmental Specifications3.3Mechanical Specifications3.4Safety Specifications3.5Typical Frequency Response
OPERATION4.1Making Measurements with the K100/K1104.2Indicator Lights - Green and Red LEDs4.3Model K100 Operation ExamplesDC Current Measurement Example (K100)DC Current Measurement Example - Current Reversed (K100)Two-Wire Sum-of-Currents Example (K100)Two-Wire Current Differential Example (K100)Oscilloscope Measurement Example (K100)Maximum Step Discontinuity Example (K100)
4.4Model K110 Operation ExamplesMeasuring the DC Component of an (AC+DC) Waveform (K110)Measuring the AC Component of an (AC+DC) Waveform (K110)Oscilloscope Measurement Example (K110)
4.5Tips For Making Precise Measurements4.6Residual Readings Following Severe Overloads
MAINTENANCE5.1 Warning 5.2Battery Installation5.3Cleaning
Repair and CalibrationTechnical and Sales AssistanceLimited WarrantyWarranty Repairs