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 The Fluke 43B Power Quality Analyzer performs the measurements you need to maintain power systems, troubleshoot power problems and diagnose equipment failures all in a rugged handheld package.  
Fluke 43B combines the most useful capabilities of a power quality analyzer, multimeter and scope 
Calculates 3-phase power on balanced loads, from a 1-phase measurement 
Measures power harmonics, and captures voltage sags, transients and inrush current 
Monitoring functions help track intermittent problems and power system performance 
Menus use familiar electrical terminology 
Toggle through the most commonly used power quality modes with a single keystroke 
Records two selectable parameters for up to 16 days 
20 measurement memories to save/recall screens and data with cursor readings 
FlukeView Software can log harmonics and all other reading over time, complete harmonics profile up to the 51st harmonic 
Measures resistance, diode voltage drop, continuity, and capacitance  |