User manual

EX65x‐en‐US_V1.512/15
17
CurrentMeasurementConsiderations:
 Currentmeasurementmustbeperformedinthetemperaturerangeof0~40
o
C(32to104
o
F).
 Whenpressingthetrigger,donotsuddenlyreleaseit;theclampissensitivetomagnetism,
heat,andmechanicalstressandsuchimpactwillcausethereadingtofluctuatebriefly.
 IfthereadingispositiveinthemeasurementofDCcurrent,thedirectionofcurrentisfrom
toptobottom(meterfaceplateisthetopandthemeterbackisthebottom).
 Inordertoensuremeasurementaccuracy,theconductormeasuredmustbepositionedin
themiddleoftheclampingarea;otherwiseadditionalerrorofreadingof±1.0%(typical)will
begenerated.
 Theaccuracyofnon‐sinusoidal
wavesmustbeadjustedasfollows:
Crestfactor1～2,accuracyincreasesaccuracyspec.by3%
Crestfactor2.0～2.5,accuracyincreasesaccuracyspec.by5%
Crestfactor2.5～3.0,accuracyincreasesaccuracyspec.by7%
