Extech Instruments EX655 User Manual

EX65x‐en‐GB_V1.67/16
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by3%
 Crestfactor2~2.5,accuracyincreasesby5%
 Crestfactor2.5~3,accuracyincreasesby7%


Extech Instruments EX655 Specifications

General

Brand	Extech Instruments
Model	EX655
Category	Measuring Instruments
Language	English