The Fluke 438-II Power Quality and Motor Analyzer<\/strong> is a dual-function diagnostic tool designed for both electrical power quality analysis<\/strong> and mechanical motor performance evaluation<\/strong>\u2014without requiring mechanical sensors. It’s ideal for industrial environments, motor-driven systems, and predictive maintenance workflows.<\/p>\n Voltage & Current<\/strong>: Measures RMS voltage\/current, frequency, power (active, reactive, apparent), and power factor.<\/p><\/li> Harmonics<\/strong>: Up to the 50th harmonic for voltage and current.<\/p><\/li> Unbalance Detection<\/strong>: Voltage and current unbalance to identify phase issues.<\/p><\/li> Transient Capture<\/strong>: Records waveform data at 200 kS\/s on all phases up to 6 kV.<\/p><\/li> PowerWave\u2122 Technology<\/strong>: Captures fast RMS data and half-cycle averages to analyze dynamic events like generator startups or UPS switching<\/p><\/li>\n Motor Speed (RPM)<\/strong>: Derived from electrical signals and motor nameplate data.<\/p><\/li> Torque & Mechanical Power<\/strong>: Calculates torque and output power in kW or hp.<\/p><\/li> Motor Efficiency<\/strong>: Evaluates how effectively electrical energy is converted to mechanical work.<\/p><\/li> De-rating Factor<\/strong>: Plots motor performance against load per NEMA guidelines.<\/p><\/li> No Mechanical Sensors Needed<\/strong>: All mechanical parameters are derived from electrical inputs<\/p><\/li>\nElectrical Power Quality Analysis<\/h3>\n
Motor Analyzer Capabilities<\/h3>\n