Product selection guide: Power quality analyzers | Fluke
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Product selection guide: Power quality analyzers

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Fluke 438-II Power Quality and Motor Analyzer
Discontinued
Fluke 1777 Power Quality Analyser
Fluke 438-II Power Quality Analyzer & Motor AnalyzerFluke 1770 Series Three-Phase Power Quality Analysers
Automatic transient triggering   
En50160 analysis   
Flicker   
IEC61000-4-30 complianceClass AClass A 
Mains signaling   
Phase sequence components   
Transient capture > 1MHzTransient capture < 1MHz  
Transient capture < 1MHz  
IEEE519 analysis  
Unbalance   
Interharmonics   
Power inverter efficiency   
Energy loss calculator  
DC current   
Three-phase   
Single-phase   
RMS voltage   
RMS current   
Neutral current   
Ethernet, WiFi or USBWiFi/USBEthernet/WiFi/USB 
< 1,600   
> 3000A (option)   
Compact size for use inside panels   
Status display only  
Setup by laptopSetup by tablet  
Real-time display of measurements   
On-instrument setupExternal memory (CF, SD or USB stick)  
Setup by tablet  
External memory (CF, SD or USB stick)  
Long-term RMS loggingLong-term waveform recording  
Screenshots   
Timed snapshots  
Waveform recording   
Industrial   
Inside substationOutside substation / transformer  
Residential / commercial   
Battery operatedPower from the measurement line  
Power from the measurement line  
Residential / commercial400Hz 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)