Product selection guide: Power quality analyzers

 
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Fluke 437 Series II 400 Hz Power Quality and Energy Analyzer - 1
Discontinued
Fluke 438-II Power Quality and Motor Analyzer
Discontinued
 
Fluke 437 Series II 400 Hz Power Quality Monitor and Energy AnalyzerFluke 438-II Power Quality Analyzer & Motor Analyzer
 
DC current   
Three-phase   
Single-phase   
RMS voltage   
RMS current   
Neutral current   
Compact size for use inside panels   
Status display only   
Setup by laptop   
Real-time display of measurements   
On-instrument setup   
400Hz frequency measurements  
Basic waveform display   
Fast oscilloscope function   
Phasor diagram   
Power and energy   
Total harmonic distortion   
Voltage harmonics   
Current harmonics   
Power harmonics   
K-factor   
Inrush current (triggered)   
Industrial   
Inside substation   
Residential / commercial   
Unbalance   
Interharmonics   
Power inverter efficiency   
Energy loss calculator   
< 1,600   
> 3000A (option)   
Long-term RMS logging   
Screenshots   
Timed snapshots   
Waveform recording   
Automatic transient triggering   
En50160 analysis   
Flicker   
IEC61000-4-30 complianceClass AClass A 
Mains signaling   
Phase sequence components   
Transient capture > 1MHz   
Battery operated   
Ethernet, WiFi or USBWiFi/USBWiFi/USB