Flir Cm82 User manual

USERMANUAL

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FLIRMODELCM82

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600ATRUERMSPOWERCLAMPMETER

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FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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TableofContents

1.DISCLAIMERS4

1.1Copyright4

1.2QualityAssurance4

1.3Documentation4

1.4DisposalofElectronicWaste4

2.SAFETY5

3.INTRODUCTION7

3.1KeyFeatures7

4.METERDESCRIPTION8

4.1MeterParts8

4.2FunctionSwitch9

4.3FunctionButtons9

4.4DisplayIconsandIndicators10

5.OPERATION12

5.1PoweringtheMeter12

5.2Auto/ManualSelectMode12

5.3Auto/ManualRangeMode12

5.4HOLDMode13

5.5SilentMode13

5.6VoltageandCurrentMeasurements13

5.7Non‐ContactVoltageDetector17

5.8PowerMeasurements18

5.9ResistanceMeasurements22

5.10CapacitanceMeasurements22

5.11ContinuityTest23

5.12DiodeTest23

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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6.MAINTENANCE24

6.1CleaningandStorage24

6.2BatteryReplacement24

7.SPECIFICATIONS25

7.1Generalspecifications25

7.2Electricalspecifications26

8.TECHNICALSUPPORT31

9.WARRANTIES31

9.1FLIRGlobalLimitedLifetimeWarranty31

9.2FLIRTestandMeasurementLimited2YearWarranty32

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FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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1. Disclaimers

1.1Copyright

©2014‐2016,FLIRSystems,Inc.Allrightsreservedworldwide.Nopartsofthesoftwareincluding

sourcecodemaybereproduced,transmitted,transcribedortranslatedintoanylanguageor

computerlanguageinanyformorbyanymeans,electronic,magnetic,optical,manualor

otherwise,withoutthepriorwrittenpermissionofFLIRSystems.

Thedocumentationmustnot,inwholeorpart,becopied,photocopied,reproduced,translatedor

transmittedtoanyelectronicmediumormachinereadableformwithoutpriorconsent,inwriting,

fromFLIRSystems.

Namesandmarksappearingontheproductshereinareeitherregisteredtrademarksor

trademarksofFLIRSystemsand/oritssubsidiaries.Allothertrademarks,tradenamesorcompany

namesreferencedhereinareusedforidentificationonlyandarethepropertyoftheirrespective

owners.

1.2QualityAssurance

TheQualityManagementSystemunderwhichtheseproductsaredevelopedandmanufactured

hasbeencertifiedinaccordancewiththeISO9001standard.

FLIRSystemsiscommittedtoapolicyofcontinuousdevelopment;thereforewereservetheright

tomakechangesandimprovementsonanyoftheproductswithoutpriornotice.

1.3Documentation

Toaccessthelatestmanualsandnotifications,gototheDownloadtabat:http://support.flir.com.

Itonlytakesafewminutestoregisteronline.Inthedownloadareayouwillalsofindthelatest

releasesofmanualsforourotherproducts,aswellasmanualsforourhistoricalandobsolete

products.

1.4DisposalofElectronicWaste

Aswithmostelectronicproducts,thisequipmentmustbedisposedofinan

environmentallyfriendlyway,andinaccordancewithexistingregulationsfor

electronicwaste.

PleasecontactyourFLIRSystemsrepresentativeformoredetails.

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FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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2. Safety

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SafetyNotes

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Beforeoperatingthedevice,youmustread,understand,andfollowallinstructions,dangers,

warnings,cautions,andnotes.

FLIRSystemsreservestherighttodiscontinuemodels,partsoraccessories,andotheritems,orto

changespecificationsatanytimewithoutpriornotice.

Removethebatteriesifthedeviceisnotusedforanextendedperiodoftime.

WarningStatements

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Donotoperatethedeviceifyoudonothavethecorrectknowledge.Formalqualificationsand/or

nationallegislationfortheelectricalinspectionscanapply.Incorrectoperationofthedevicecan

causedamage,shock,injuryordeathtopersons.

Donotstartthemeasuringprocedurebeforeyouhavesetthefunctionswitchtothecorrect

position.Thiscancausedamagetotheinstrumentandcancauseinjurytopersons.

Donotchangetocurrentorresistancewhenyoumeasurethevoltage.Thiscancausedamageto

theinstrumentandcancauseinjurytopersons.

Donotmeasurethecurrentonacircuitwhenthevoltageincreasestomorethan1000V.Thiscan

causedamagetotheinstrumentandcancauseinjurytopersons.

Youmustdisconnectthetestleadsfromthecircuitthatyoudidatestonbeforeyouchangethe

range.Ifyoudonotdothis,damagetotheinstrumentandinjurytopersonscanoccur.

Donotreplacethebatteriesbeforeyouremovethetestleads.Thiscancausedamagetothe

instrumentandcancauseinjurytopersons.

Donotusethedeviceifthetestleadsand/orthedeviceshowsignsofdamage.Injurytopersons

canoccur.

Becarefulwhenyoudothemeasurementsifthevoltagesaremorethan25VACrmsor35VDC.

Thereisariskofshockfromthesevoltages.Injurytopersonscanoccur.

Donotdodiode,resistanceorcontinuitytestsbeforeyouhaveremovedthepowerfrom

capacitorsandotherdevicesundertestduringameasurement.Injurytopersonscanoccur.

Makesurethatchildrencannottouchthedevice.Thedevicecontainsdangerousobjectsandsmall

partsthatchildrencanswallow.Ifachildswallowsanobjectorapart,speakwithaphysician

immediately.Injurytopersonscanoccur.

Donotletchildrenplaywiththebatteriesand/orthepackingmaterial.Thesecanbedangerous

forchildreniftheyusethemastoys.

Donottouchexpiredordamagedbatterieswithoutgloves.Injurytopersonscanoccur.

Donotcauseashort‐circuitofthebatteries.Thiscancausedamagetotheinstrumentandcan

causeinjurytopersons.

Donotputthebatteriesintoafire.Injurytopersonscanoccur.

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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Cautions

Donotusethedeviceforaprocedurethatitisnotmadefor.Thiscancausedamagetothe

protection.

Thissymbol,adjacenttoanothersymbolorterminal,indicatesthattheuser

mustrefertothemanualforfurtherinformation.

Thissymbol,adjacenttoaterminal,indicatesthat,undernormaluse,

hazardousvoltagesmaybepresent.

Doubleinsulation.

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ULlistingisnotanindicationoraverificationoftheaccuracyofthemeter

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FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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3. Introduction

ThankyouforselectingtheFLIRCM82PowerClampMeter.Thisdeviceisshippedfullytestedand

calibratedand,withproperuse,willprovideyearsofreliableservice.

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3.1KeyFeatures

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10000‐countdigitaldisplay

Large‐scaledisplay

Analogbargraph

TrueRMSreadinginACandAC+DCmode

Worklight

AutoAC/DC600Acapabilityandselection

AutoAC/DC1000Vcapabilityandselection

Autoresistance/continuity/diodeselection

Powerandpowerfactormeasurement

Totalharmonicdistortionand1to25harmonics

PhaserotationIndication

100kΩresistancecapability

Non‐contactvoltagedetector

Frequencymeasurement

Capacitancecapability

Smartdatahold

Peakhold

Inrushcurrent

DCAzerokey

Minimum/maximumandaveragehold

VFDmode–Low‐passfilter

Autopoweroff

Jawopening1.45”(37mm)forconductorsupto1500MCM.

1.2m(4’)drop‐proof

Convenientbatterycover

SafetyCategoryRating:CATIV‐600V,CATIII‐1000V

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FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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4. MeterDescription

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4.1MeterParts

1. Clampjaw

2. Jawopeningtrigger

3. Backlight()Button

4. MODEButton

5. RANGEButton

6. LCDDisplay

7. NavigationButtons(/ )

8. COM(negative‐)ProbeInputJack

9. Non‐contactvoltagedetectorlight

10. Functionswitch,seesection4.2Functionswitch

11. Worklight()Button

12. HOLDButton

13. OK/ENTER()Button

14. Positive(+)ProbeInputJackforVoltage,

Capacitance,Resistance,andPower.







1. Worklight

2. Batterycompartment

1

9

2

311

12

4

5

6

13

7

14

8

10

1

2

Fig4‐2RearView

Fig4‐1FrontView

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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4.2FunctionSwitch

Themetercanmeasurecapacitancethroughtheprobeinputs.

Themetercanmeasureresistance,continuity,ordiodepolaritythroughthe

probeinputs.ThetypeofmeasurementisselectedbytheMODEbutton.

Themetercanmeasurepowerthroughtheprobeinputsandtheclamp

jaws.

Themetercanmeasurecurrentthroughtheclampjaws.

Themetercanmeasurevoltagethroughtheprobeinputs.

Themeterisinfullpower‐savingmode.

4.3FunctionButtons

UsethebuttontoselectAutoselectorManualselectmode,seesection

5.2Auto/Manualselectmode

InManualselectmode,pressthebuttontoselecttheoperatingmode

UsethebuttontoselectAutorangeorManualrangemode,seesection

5.3Auto/Manualrangemode

InManualrangemode,pressthebuttontochangetherange(scale)

PressthebuttontotogglebetweenNormalandHoldmodes,seesection

5.4Holdmode

Holdingthebuttondownfor2secondsenables/disablesthekeylock

mode

InHoldmode,themeterwillbeepcontinuouslyandthedisplaywill

flashifthemeasuredsignalislargerthanthedisplayreading(forthe

V.A.W.function).



Pressthebuttontoenable/disablethedisplaybacklight.



Pressthisbuttontoenable/disabletheworklights.



FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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4.4DisplayIconsandIndicators



IndicatesthatthemeterisinAutoselectmode.



Indicatesthatthemeterisdisplayingmaximumreadingvalues.



Indicatesthatthemeterisdisplayingminimumreadingvalues.



Indicatesthatthemeterisdisplayingtheaveragereading.



Indicatesthatthemeterisdisplayingpeakmaximumvalues.



Indicatesthatthemeterisdisplayingpeakminimumvalues.



IndicatesthatthemeterisinAutorangemode.

IndicatesthatthemeterisinPowerfactormode.



Indicatesthatthemeterdisplaysthetotalharmonicdistortion.

IndicatesthatthemeterisinPhaserotationmode.

IndicatesthatthemeterisinHoldmode.

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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Indicatesthebatteryvoltagestatus.

APOIndicatesthattheautopowerofffunctionisenabled.

Indicatesthatthemeasuredvoltageisgreaterthan30VDCorACRMS.

IndicatesthatthemeterismeasuringACcurrentorvoltage.

IndicatesthatthemeterismeasuringDCcurrentorvoltage.



IndicatesthatthemeterismeasuringAC+DCcurrentorvoltage.

Indicatesthatthecontinuityfunctionisactive.

Indicatesthatthediodetestfunctionisactive.

VFDmodeicon.

Peakmodeicon.

Min/Max/Avgmodeicon.

DCZeromodeicon.

HarmonicDistortionicon.

Inrushcurrentmodeicon.

Frequencymodeicon.

Silentmodeicon.

Lockmodeicon.

4.4.1Out‐of‐rangeWarning

Iftheinputisout‐of‐range,OLisdisplayed.



FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

12

5. Operation

Note:Beforeoperatingthedevice,youmustread,understand,andfollowallinstructions,dangers,

warnings,cautions,andnotes.

Note:Whenthemeterisnotinuse,thefunctionswitchshouldbesettotheOFFposition.

Note:Whenconnectingtheprobeleadstothedeviceundertest,connectthenegativeleadbefore

connectingthepositivelead.Whenremovingtheprobeleads,removethepositiveleadbefore

removingthenegativelead.

5.1PoweringtheMeter

1.Setthefunctionswitchtoanypositiontoswitchonthemeter.

2.Ifthebatteryindicator showsthatthebatteryvoltageisloworifthemeterdoesnotpower

on,replacethebattery.Seesection6.2Batteryreplacement.



5.1.1AutoPowerOff

Themeterenterssleepmodeafter30minutesofinactivity.Themeterbeepsthreetimes9

secondsbeforepoweringoff.Pressanybuttonorturnthefunctionswitchtopreventthemeter

frompoweringoff.Theautopowerofftime‐outisthenreset.Todisableautopoweroff(APO)

presstheMODEbuttonwhileturningonthemeter.

5.2Auto/ManualSelectMode

InAutoselectmode,themeterattemptstoautomaticallyselecttheproperoperatingmode(e.g.,

ACorDCmeasurement)basedontheinputsignal.InManualselectmode,thedesiredoperating

modeisselectedmanually.

Autoselectmodeisthedefaultmodeofoperation.Whenanewfunctionisselectedwiththe

functionswitch,thestartingmodeisAutoselectandtheindicatorisdisplayed.

ToenterManualselectmode,presstheMODEbutton.Tomanuallyselecttheoperating

mode,presstheMODEbuttonrepeatedly.

ToenterAutoselectmode,pressandholdtheMODEbuttonuntilthe indicatoris

displayed.

5.3Auto/ManualRangeMode

InAutorangemode,themeterautomaticallyselectsthemostappropriatemeasurementscale.In

Manualrangemode,thedesiredrange(scale)issetmanually.

Autorangemodeisthedefaultmodeofoperation.Whenanewfunctionisselectedwiththe

functionswitch,thestartingmodeisAutorangeandthe indicatorisdisplayed.

ToenterManualrangemode,presstheRANGEbutton.Tochangetherange,presstheRANGE

buttonrepeatedlyuntilthedesiredrangeisdisplayed.

ToenterAutorangemode,pressandholdtheRANGEbuttonuntiltheindicatoris

displayed.

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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5.4HOLDMode

1. InHoldmode,thedisplayfreezesthelastreadingandcontinuestodisplaythisvalue.

2. PresstheHOLDbuttontotogglebetweenNormalandHoldmodes.InHoldmode,the 

indicatorisdisplayed.

5.4.1SmartHOLD

Themeterwillbeepcontinuouslyandthedisplaywillflashifthemeasuredsignalislargerthan

thedisplayreading(fortheV.A.W.function).

5.5SilentMode

InSilentmode,thealertbeeperisdisabled.Silentmodedoesnotaffectthecontinuitybeeper.



1. UsethenavigationbuttonstoselecttheSilentmodeicon,seesection5.6.3.1.

5.6VoltageandCurrentMeasurements

Note:Ifthemeasuredvoltageisgreaterthan30VDCorACRMS,theindicatorisdisplayed.

5.6.1BasicVoltageMeasurements

1. SetthefunctionswitchtotheVposition.

2. TomanuallyselectAC,DC,orAC+DCmeasurement,presstheMODEbuttonrepeatedly.

Refertosection5.2Auto/Manualselectmode.

3. Tomanuallyselectthemeasurementrange(scale),presstheRANGEbuttonrepeatedly.

Refertosection5.3Auto/Manualrangemode.

4. InserttheblackprobeleadintothenegativeCOMterminalandtheredprobeleadinto

thepositiveVterminal.

5. Connecttheprobeleadsinparalleltothepartundertest.

6. Readthevoltagevalueonthedisplay.



5.6.2BasicCurrentMeasurements

WARNINGDonotmeasurethecurrentonacircuitwhenthevoltageincreasestomore

than1000V.Thiscancausedamagetotheinstrumentandcancauseinjurytopersons.



Whenmeasuringcurrentusingtheclampjaws,onlyoneconductorshouldbeenclosedbythe

jaws—refertoFigure5.1.

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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

Figure5.1Correctandincorrectsetup



1. Ensurethattheprobeleadsaredisconnectedfromthemeter.

2. SetthefunctionswitchtotheAposition.

3. TomanuallyselectAC,DC,orAC+DCmeasurement,presstheMODEbuttonrepeatedly.

Refertosection5.2Auto/Manualselectmode.

4. Tomanuallyselectthemeasurementrange(scale),presstheRANGEbuttonrepeatedly.

Refertosection5.3Auto/Manualrangemode.

5. Pressthetriggertoopentheclampjaws.Fullyencloseoneconductor—refertoFigure5.1.

Foroptimumresults,centertheconductorinthejaws.

6. Readthecurrentvalueonthedisplay.



5.6.3ExtendedFunctionalityModes

Inadditiontothebasicvoltageandcurrentmeasurements,themetercanbesettodifferent

modesforextendedfunctionality.

5.6.3.1SelectingModes

Themodeiconsapplicablefortheselectedmeasurementtypearedisplayedinthelower

partofthedisplay.Whenamodeisenabled,theiconisframed.



Figure5.2Modeicons(ACvoltagemeasurements):Peakmode/Silentmodeareenabled

Thenavigationbuttonsareusedtoselectamodeiconandtoenable/disableamode:

7. UsetheLEFTandRIGHTnavigationbuttonstonavigatetoamodeicon.Thecurrently

selectediconwillflash.

8. PresstheOKbuttontoenable/disabletheselected(flashing)mode.



FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

15

TIME

CURRENT

0A

Start Stop

Current

Detection

Threshold

Measured Inrush

Current

100ms Sample Window (60Hz)

5.6.3.2PeakMode



InPeakmode,themetercapturesanddisplaysthepositiveandnegativepeakvalues,and

updatesonlywhenahigher/lowervalueisregistered.Peakmodeisavailablewhen

measuringACcurrentorvoltageinManualselectmode.

1. Usethenavigationbuttonstoselect andenablePeakmode.



2. PresstheOKbuttontotogglebetweenthedisplayofPeakMaxandPeakMin.

InPeakMaxmode,the indicatorisdisplayed.

InPeakMinmode,the indicatorisdisplayed.



3. PressandholdtheOKbuttonfor2secondstodisablePeakmode.



5.6.3.3InrushCurrentMode

InInrushcurrentmode,themeterdisplaysthehighestcurrentreadinginthefirst100ms

afterthetriggerpoint(currentdetectionthreshold,seeFig.5.3below).Thecurrent

detectionthresholdis1.00Aforthe100.00Arangeand10.0Aforthe1000.0Arange.Inrush

currentmodeisavailablewhenmeasuringACcurrentinManualselectmode.

1. Connectthemetertotheunpoweredcircuitundertest

2. SetthemetertoA

3. UsethenavigationbuttonstoselectandenableInrushcurrentmode.

4. Turnonthepowertothecircuitundertest

Note:Iftheinrushcurrentundertestingismorethan100AAC,manuallysettherangeto

600Abeforeactivatingtheinrushcurrentmode,seesection5.3Auto/Manualrangemode.



Figure5.3InrushCurrent

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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5.6.3.4DCZeroMode

TheDCzerofeatureremovesoffsetvaluesandimprovestheaccuracyforDCcurrent

measurements.DCZeromodeisavailablewhenmeasuringDCorAC+DCcurrentinManual

selectmode.

1. Ensurethatthereisnoconductorintheclampjaws.

2. Usethenavigationbuttonstoselect andenableDCZeromode.



5.6.3.5FrequencyMode

InFrequencymode,themetermeasuresanddisplaysthefrequency.Frequencymodeis

availablewhenmeasuringACcurrentorvoltageinManualselectmode.

Importantnote:DonotswitchtotheFrequencymodeuntilthemeterissetupand

activelymeasuringthevoltageorcurrentsignal.

Usethenavigationbuttonstoselect andenableFrequencymode.

5.6.3.6MIN/MAX/AVGMode

InMin/Max/Avgmode,themetercapturesanddisplaystheminimumormaximumvalues

andupdatesonlywhenahigher/lowervalueisregistered.Themetercanalsodisplaythe

averageofallvaluesrecordedfromthebeginningofMin/Max/Avgmode.

1. Usethenavigationbuttonstoselect andenableMin/Max/Avgmode.

2. PresstheOKbuttonrepeatedlytocyclethroughtheminimum,maximum,andaverage

readingdisplays.Thecorrespondingiconsaredisplayed:,,or.

3. PressandholdtheOKbuttonfor2secondstodisableMin/Max/Avgmode.

5.6.3.7HarmonicDistortionMode



InHarmonicDistortionmode,themeterdisplaysthedistortionpercentagevalueforthe

first25harmonicsaswellasthetotalharmonicdistortion.HarmonicDistortionmodeis

availablewhenmeasuringACcurrentorvoltageinManualselectmode.

TheharmonicdistortionisexpressedasHn=(RMSofanindividualharmonicn)/(RMSofthe

fundamentals)×100%.

1. Usethenavigationbuttonstoselect andenableHarmonicDistortionmode.

2. WhileinHarmonicDistortionmode,usetheLEFTandRIGHTnavigationbuttonsto

navigatethroughtheindividualandtotalharmonicdata.H01,H02,…,Hnisdisplayed.

3. Whenthetotalharmonicdistortionisdisplayed,the indicatorappearsintheupper

partofthedisplayand'thd'isshowninthemaindisplay.

4. PresstheOKbuttontoswitchthedisplaybetweenHarmonicOrderIndicationmodeand

Percentagemode.

5. PressandholdtheOKbuttonfor2secondstodisableHarmonicDistortionmode.



FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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5.6.3.8VFDMode(lowpassfilter)

TheVFDmodeeliminateshighfrequencynoiseinvoltagemeasurementsbymeansofalow‐passfilter.

TheVFDmodeisdesignedforvariablefrequencydrive(VFD)measurements.Thismodeisavailablefor

measurementsofACcurrentorvoltage.



1.UsethenavigationbuttonstoselectandactivatetheVFDmode

5.7Non‐ContactVoltageDetector

Note:Testonaknownlivecircuitbeforetestingonanunfamiliarcircuit.

1. Holdtheclamptipsofthemeterveryclosetothevoltagesource.

2. Ifvoltageispresent,thenon‐contactvoltagealertlamp(seesection4.1Meterparts)

illuminatesaredcolor.

CAUTION

Ifthenon‐contactvoltagealertlampisnotilluminated,voltagecouldstillbepresent.

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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5.8PowerMeasurements

5.8.1SinglePhasePowerMeasurements

1. SetthefunctionswitchtotheWposition.

2. InserttheblackprobeleadintothenegativeCOMterminalandtheredprobeleadinto

thepositiveWterminal.

3. Pressthetriggertoopentheclampjaws.Fullyencloseoneconductor—refertoFigure5.1.

Foroptimumresults,centertheconductorinthejaws.

Note:The+symbolonthejawshouldbedirectedtowardthepowersource



4. Connecttheprobeleadsinparalleltothepartundertest.

5. Readtheactivepowervalueonthedisplay.

Ifthevalueisdisplayedwithoutasign,thepowerisflowingfromthepowersourcetothe

load.

Ifthevalueisdisplayedwithaminussign(–),thepowerisflowingfromthepowerloadto

thesource.

6. Tomeasureanddisplaythepowerfactor,presstheMODEbuttonrepeatedlyuntilthe 

indicatorisdisplayed.

7. Readthepowerfactorvalueonthedisplay.

Ifthevalueisdisplayedwithoutasign,thephaseofthecurrentsignalislaggingbehind

thevoltagesignal(inductiveload).

Ifthevalueisdisplayedwithaminussign(–),thephaseofthecurrentsignalisleadingthe

voltagesignal(capacitiveload).

8. Toreturntoactivepowermeasurements,presstheMODEbuttonrepeatedlyuntilneither

thenorthe indicatorisdisplayed.



Ifanoverloadoccurs,thefollowingisdisplayed:

OL.V:Voltageoverloadorbothvoltageandcurrentoverload.

OL.A:Currentoverload.

OL.kW:Activepoweroverload.

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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5.8.2Three‐PhasePowerMeasurements



5.8.2.1Three‐PhaseThree‐WireBalanced/Unbalanced

Thepowerofathree‐phasethree‐wiredeltaconfigurationismeasuredintwosteps,in

accordancewithFigure5.4.Thetotalpoweristhesumofthetwomeasurements:W=W1+

W2.



Figure5.4Three‐phasethree‐wiremeasurements

1. SetthefunctionswitchtotheWposition.

2. Ensurethatthemeterissettoactivepowermeasurement.Ifthe orthe 

indicatorisdisplayed,presstheMODEbuttonrepeatedlyuntilnoneofthese

indicatorsaredisplayed.

3. Taketwomeasurementsoftheactivepower,inaccordancewithFigure5.4.

4. Tomeasureanddisplaythepowerfactor,presstheMODEbuttonrepeatedlyuntilthe

indicatorisdisplayed.

5. Readthepowerfactorvalueonthedisplay.

Ifthevalueisdisplayedwithoutasign,thephaseofthecurrentsignalislagging

behindthevoltagesignal(inductiveload).

Ifthevalueisdisplayedwithaminussign(–),thephaseofthecurrentsignalis

leadingthevoltagesignal(capacitiveload).

6. Toreturntoactivepowermeasurements,presstheMODEbuttonrepeatedlyuntil

neitherthenorthe indicatorisdisplayed.

FLIRCM82USERMANUALDocumentIdentifier:CM82‐en‐GB_AD

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5.8.2.2Three‐PhaseFour‐WireBalanced/Unbalanced

Thepowerofathree‐phasefour‐wireconfigurationismeasuredinthreesteps,accordance

withFigure5.5.Thetotalpoweristhesumofthethreemeasurements:W=W1+W2+W3



Figure5.5Three‐phasefour‐wiremeasurements

1. SetthefunctionswitchtotheWposition.

2. Ensurethatthemeterissettoactivepowermeasurement.Ifthe orthe 

indicatorisdisplayed,presstheMODEbuttonrepeatedlyuntilnoneofthese

indicatorsaredisplayed.

3. Takethreemeasurementsoftheactivepower,inaccordancewithFigure5.5.

4. Tomeasureanddisplaythepowerfactor,presstheMODEbuttonrepeatedlyuntilthe

indicatorisdisplayed.

5. Readthepowerfactorvalueonthedisplay.

Ifthevalueisdisplayedwithoutasign,thephaseofthecurrentsignalislagging

behindthevoltagesignal(inductiveload).

Ifthevalueisdisplayedwithaminussign(–),thephaseofthecurrentsignalis

leadingthevoltagesignal(capacitiveload).

6. Toreturntoactivepowermeasurements,presstheMODEbuttonrepeatedlyuntil

neitherthenorthe indicatorisdisplayed.

FLIR CM82 User manual

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