AEMC MiniFlex MF 300-6-2-10 User manual

FLEXIBLE
AC CURRENT SENSOR
MiniFlex
®
MF 300-6-2-10
MF 3000-10-2-1
ENGLISH User Manual
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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 #: 2126.81 / 2126.82
Model #: MF 300-6-2-10 / MF 3000-10-2-1
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 ................................................................................ 2
1.1 International Electrical Symbols................................................3
1.2 DenitionofMeasurementCategories .....................................3
1.3 ReceivingYourShipment..........................................................4
1.4 OrderingInformation.................................................................4
2. PRODUCT FEATURES........................................................................ 5
2.1 Description................................................................................5
2.2 Features....................................................................................6
2.3 ControlFeatures .......................................................................7
3. SPECIFICATIONS.............................................................................. 8
3.1 TypicalFrequencyResponseCurves .....................................10
3.1.1 AmplitudeError-ModelMF300-6-2-10 .....................10
3.1.2 AmplitudeError-ModelMF3000-10-2-1 ................... 11
3.1.3 PhaseError-ModelMF300-6-2-10...........................12
3.1.4 PhaseError-ModelMF3000-10-2-1.........................13
3.1.5 FrequencyLimitationVersusAmplitude......................14
4. OPERATION.................................................................................... 15
4.1 Compatibility ...........................................................................15
4.2 TipsforMakingPreciseMeasurements..................................15
4.3 MakingMeasurements ...........................................................16
5. MAINTENANCE............................................................................... 17
5.1 Maintenance ...........................................................................17
Warning .........................................................................17
5.1.1 BatteryReplacement ..................................................17
5.1.2 Cleaning......................................................................17
Limited Warranty .............................................................................19
WarrantyRepairs ............................................................................19
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2 MiniFlex
®
Flexible AC Current Probe
CHAPTER 1
INTRODUCTION
WARNING
Thesesafetywarningsareprovidedtoensurethesafetyofperson-
nel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.
• Safetyistheresponsibilityoftheoperator.TheMiniFlex®must
be used only by qualied personnel using applicable safety
precautions.
• Wearprotectiveclothingandglovesasrequired.
• 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priortousingthecurrent
probe.Neverexceedthemaximumvoltageratingsgiven.
• ALWAYSde-energizethecircuitbeforewrappingtheMiniFlex®
around bare conductors, bus bars, or near live parts. Do not
wraponliveconductors.
• ALWAYS connect the electronic module to the display device
beforewrappingtheMiniFlex®aroundthesamplebeingtested.
• ALWAYSinspectthemodule,sensor,sensorcable,andoutput
terminalspriortouse.Replaceanydefectivepartsimmediately.
Useonlyfactoryparts.
• NEVERusetheMiniFlex®onelectricalconductorsratedabove
1000VCATIII;600VCATIV.
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MiniFlex
®
Flexible AC Current Probe 3
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 B current sensor. Do not apply around or remove
from HAZARDOUS LIVE conductors without additional protective means (de-
energizing the circuit or wearing protective clothing suitable for high voltage
work).
Battery
Compliance with the Low Voltage & Electromagnetic Compatibility European
directives (73/23/CEE & 89/336/CEE)
In the European Union, this product is subject to a separate collection system
for recycling electrical and electronic components In accordance with directive
WEEE 2002/96/EC
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.
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4 MiniFlex
®
Flexible AC Current Probe
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.
1.4 Ordering Information
MiniFlex®ModelMF300-6-2-1 ............................................Cat. #2126.81
MiniFlex®ModelMF3000-10-2-1 ........................................Cat. #2126.82
Both models include a BNC (female)/Banana (male) adapter, 9V battery and a user manual.
1.4.1 Accessories and Replacement Parts
Adapter-BNC(female)/4mmBanana(male) ................... Cat. #2119.94
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MiniFlex
®
Flexible AC Current Probe 5
CHAPTER 2
PRODUCT FEATURES
2.1 Description
TheMiniFlex®isacompactexibleACcurrenttransformercomposedof
a exible sensor and an electronic module. The exible sensor permits
measurementsonconductorswherestandardclamp-onprobescouldnot
beused.Inparticular,itcanbeinstalledinconnedspaces,placeswhere
accessisdifcult,orevenwrappedaroundirregularshapes.
TheMiniFlex®islightweight.Itdoesnotusemagneticcoreslikestandard
transformers.Thetransformationprincipleisbasedonanaircore.Itpres-
entsvirtuallynoloadtothesystemundertest,hasalowphaseshiftand
excellentfrequencyresponse,andcannotbedamagedbyoverloads.The
sensorassemblyisinsulatedfor1000VCATIII;600VCATIV.TheMini-
Flex®meetsEN61010andisCEmarked.
The MiniFlex® has an mV output proportional to the current measured
fordirectreadingsonDMMs,dataloggers,oscilloscopes,andpoweror
harmonicmeters.TRMSmeasurementsaretakenwhenconnectedtoa
TRMSmeter.TheMiniFlex®isinsensitivetoDCcurrentsandonlytheAC
componentofthemeasuredsignalismeasured.
Theexiblesensorisavailableinlengthsof6"and10".
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6 MiniFlex
®
Flexible AC Current Probe
2.2 Features
• Measuresfrom0.5Armsto3000Arms(modeldependent)
• Accuracy1%ofReading±0.25A
• TRMSmeasurementswhenconnectedtoaTRMSinstrument
• Nocoresaturationordamageifoverloaded
• OverrangeLEDformeasurementcircuitry
• EN61010;1000VCATIII;600VCATIV;CEMark
• 9Vbatteryfortypical140hourcontinuousoperation
• 20kHzfrequencyresponse
• Lowphaseshiftforpowermeasurements
• InsensitivetoDC,measuresonlyACcomponentonDC+AC
signals
• Excellentlinearity
• Lightweight
• Sensorisresistanttooilsandaliphatichydrocarbons
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MiniFlex
®
Flexible AC Current Probe 7
2.3 Control Features
1
2
3
4
5
6
7
8
Figure 1
1. Flexiblesensor5mmØ
2. Sensoropeningdevice
3. Shieldedcord
4. BNCoutputconnector
5. RedOL(overload)indicator
6. GreenON/OFFindicator
7. Rangeselectionswitch:
 -ModelMF300-6-2-10(30/300A)
 -ModelMF3000-10-2-1(300/3000A)
8. BNC(female)/Banana(male)connector
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8 MiniFlex
®
Flexible AC Current Probe
CHAPTER 3
SPECIFICATIONS
REFERENCE CONDITIONS
Quantity of influence Reference values
Temperature 23 ± 5° C
Relative humidity 20 to 75% RH
Frequency of the signal measured 40 to 400Hz
Type of signal sinusoidal
External electric field < 1V/m
External DC magnetic field (earth field) < 40A/m
External AC magnetic field none
Position of the conductor centered in the measurement coil
Shape of the measurement coil nearly circular
Input impedance of the display device connected to housing ≥1MW
MODEL MF 300-6-2-10 MF 3000-10-2-1
ELECTRICAL
Range 30/300A 300/3000A
Signal Output 100mV/10mV/A 10mV/1mV/A
Frequency Range 10Hz to 20kHz with current derating
Frequency Limitation see § 3.1 (up to 300Arams there is no frequency limitation)
Influence Of Conductor Positioning 1.5% typical, 3% max
Influence Of Conductor Positioning
In Sensor Against Handle 4% typical, 6% max
External Conductor Influence 35dB to 40dB on contact
Accuracy ± 1% +0.25A
Common Mode Rejection 100dB typical, 80dB min
Max peak factor (1) at I nominal 1.5
Residual noise at I = 0 (Arms) (2) .25
Max phase shift at 50 Hz (°) 1.5 0.8
Max offset voltage (mVDC)50 5 5 2
Max output voltage (Vpeak) ± 4.5
Output impedance (kW)1
Power Source 9V alkaline battery (6LF22)
Battery Life 140 hrs continuous operation or 10,000 one minute measurements
Battery Indicator When green LED starts blinking, remaining life is approx 8 hours;
When LED is OFF, the battery needs to be replaced
(1):PeakfactorPF=Vpeak/Vrms
(2):Theresidualnoiseaffectsthemeasurementuncertaintyaccordingtotheformula:
(I measured x 0.01)2+ (residual noise)2
I measured
global uncertainty = (I measured ≠ 0)
Ifthecurrentmeasurediszero,theuncertaintyisequaltotheresidualnoise.
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MiniFlex
®
Flexible AC Current Probe 9
MODEL MF 300-6-2-10 MF 3000-10-2-1
MECHANICAL
Module Output Coaxial cable terminated by an insulated female BNC connector
Module Dimensions 4.0 x 2.5 x 1.1" (103 x 64 x 28mm)
Module Weight 7 oz. (200g)
Sensor Diameter 5mm Ø
Sensor Length 6" (152mm) 10"(250mm)
Max Conductor Size 1.77" (45mm) 2.95" (70mm)
Connection Cable Length 6.5 ft (2m)
Overload Indication Red LED ON indicates overload;
Module output may not reflect the actual measurement
Flammability Rating Sensor: UL94V0 Housing: UL94V2
Drop Test Per IEC 68-2-32
Vibration Per IEC 68-2-6
Mechanical Shock Per IEC 68-2-27
Weatherproofing IP 50
ENVIRONMENTAL
Operating Temperature Range 14° to 131°F (-10° to +55°C)
Storage Temperature Range -40° to 158°F (-40° to +70°C)
Influence of Temperature Sensor: -10° to 100°C: < 0.5% of Reading per 10°C
Module: -10° to 55°C: < 0.5% of Reading per 10°C
Relative Humidity 10 to 90% RH: 0.1% typical, 0.3% max
Altitude Operating: 0 to 2000m, working voltage derating above;
Non-operating: 0 to 12,000m
SAFETY
Double Insulation Yes, per IEC 1010-2-32
CE Rated Yes
Safety Rating EN 61010, 1000V CAT III; 600V CAT IV
Pollution Level 2
Immunity and Emission Industrial environment
Electromagnetic Compatibility Satisfies the EMC and LVD directives required for CE marking and
product standard IEC 61326-1 (Ed. 97) + A1 (Ed. 98)
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10 MiniFlex
®
Flexible AC Current Probe
3.1 Typical Frequency Response Curves
3.1.1 Amplitude Error - Model MF 300-6-2-10
30A Range:
-10%
0%
10%
20%
30%
1Hz 10Hz 100Hz 1000Hz 10000Hz 100000Hz
300A Range:
-10 %
0 %
10 %
20 %
30 %
1 10 100 1000 10000 100000
Hz Hz Hz Hz Hz Hz
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MiniFlex
®
Flexible AC Current Probe 11
3.1.2 Amplitude Error - Model MF 3000-10-2-1
300A Range:
-2 %
-1 %
0 %
1 %
1 10 100 1000 10000 100000
Hz Hz Hz Hz Hz Hz
3000A Range:
-1 %
0 %
1 %
1 10 100 1000 10000 100000
Hz Hz Hz Hz Hz Hz
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12 MiniFlex
®
Flexible AC Current Probe
3.1.3 Phase Error - Model MF 300-6-2-10
300A Range:
-60 °
-50 °
-40 °
-30 °
-20 °
-10 °
0 °
10 °
1 10 100 1000 10000 100000
Hz Hz Hz Hz Hz Hz
3000A Range:
-60 °
-50 °
-40 °
-30 °
-20 °
-10 °
0 °
10 °
1 10 100 1000 10000 100000
Hz Hz Hz Hz Hz Hz
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MiniFlex
®
Flexible AC Current Probe 13
3.1.4 Phase Error - Model MF 3000-10-2-1
300A Range:
-30 °
-25 °
-20 °
-15 °
-10 °
-5 °
0 °
5 °
10 °
1 10 100 1000 10000 100000
Hz Hz Hz Hz Hz Hz
3000A Range:
-20 °
-15 °
-10 °
-5 °
0 °
5 °
10 °
1 10 100 1000 10000 100000
Hz Hz Hz Hz Hz Hz
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14 MiniFlex
®
Flexible AC Current Probe
3.1.5 Frequency Limitation Versus Amplitude
3000A Range:
0 A
500 A
1000 A
1500 A
2000 A
2500 A
3000 A
3500 A
10 Hz 100 Hz 1000 Hz 10000 Hz 100000 Hz
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MiniFlex
®
Flexible AC Current Probe 15
CHAPTER 4
OPERATION
4.1 Compatibility
TheMiniFlex®iscompatiblewithanymultimeter,AC voltmeter,orother
voltagemeasuringinstrumentwithaninputimpedancegreaterthan1MW.
Toachievethebestoverallaccuracy,usetheMiniFlex®withanACvoltme-
terhavinganaccuracyof0.75%orbetter.
4.2 Tips for Making Precise Measurements
• Whenusing the MiniFlex®with a meter,it is important toselectthe
rangethatprovidesthebestresolution.Failuretodothismayresultin
measurementerrors.
• Forbest results, selectthehighestMiniFlex® output signalpossible
andthemostsensitivemeterrangeforthisoutput.
• MakesuretheDMMormeasuringinstrumentcanaccuratelymeasure
mVAC.CertaininexpensiveDMMhavepoorresolutionandaccuracy
whenmeasuringlowmVAC.
• Forbestaccuracy,centertheMiniFlex®aroundtheconductorto be
measured.
• TheoverallmeasurementaccuracyisthesumoftheMiniFlex®accu-
racyandthedisplayinginstrumentaccuracy.
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16 MiniFlex
®
Flexible AC Current Probe
4.3 Making Measurements
• ConnecttheelectronicmoduletotheACVoltrangeofamultimeteror
measuringinstrument.SelectthehighestrangeontheMiniFlex®.
COM +
V
• Pressthesensor’syellowopeningdevicetoopentheexiblecoil.
• Wrap the coil around the conductor to be tested. If possible, within
range,selectthelowestrangetoobtainthebestresolution.
• Donot exceed specied currentrangefortheoutput. Do not useon
selectedrangeifoverloadLEDgoeson.
• Readthedisplayedvalueonthemultimeteranddivideitbytherange
selected(i.e.ifreading=2.59Vwiththe10mV/Aoutputrange,thecur-
rentowingthroughtheprobeis2590mV÷10=259A).
• For best accuracy, carefully center the conductor inside the exible
core,andifpossible,avoidbeingintheproximityofotherconductors
whichmaycreatenoiseandinterference(particularlynearthelatch).
• TrueRMSmeasurementsareobtainedwhenthe MiniFlex® is connected
toaTrueRMSmeter.NotethattheDCcomponentisnotmeasured.
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MiniFlex
®
Flexible AC Current Probe 17
CHAPTER 5
MAINTENANCE
5.1 Maintenance
Warning
• Formaintenanceuseonlyspecied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
getwaterorotherforeignagentsintothecase.
• TurntheinstrumentOFFanddisconnecttheunitfromallthecir-
cuitsbeforeopeningthecase.
5.1.1 Battery Replacement
Thebatterymustbereplacedwhenthegreenindicatorashesorremains
offwhentheinstrumentisswitchedon.
• Disconnect everything connected to the instrument and set the
switchtoOFF.
• Useascrewdrivertounscrewthetwoscrewsonthehousing.
• Replacetheoldbatterywithanewone(9Valkalineorlithiumbat-
teryoftype6LF22).
• Closethehousing,makingsurethatitiscompletelyandcorrectly
closed,thenscrewbothscrewsbackin.
5.1.2 Cleaning
• Itisimportanttokeepthesensorlatchmatingsurfacescleanto
preventforeignmatterfromenteringtheclosing.
• The sensor may be gently cleaned with a soft cloth, soap and
water. Dry immediately after cleaning. Avoid water penetration
intotheelectronicmodule.
• Makesurethesensor,electronicmodule,andallleadsarecom-
pletelydrybeforeanyfurtheruse.
Shop for Data Logging products online at: www.DataLoggerStore.ca 1.800.561.8187

Shop for Data Logging products online at: www.DataLoggerStore.ca 1.800.561.8187