FLIR CM85 - 5.8 Power Measurements; 5.8.1 Single Phase Power Measurements

FLIRCM85USERMANUALDocumentIdentifier:CM85‐en‐US_AB
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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.