Product selection guide: Solar industry tools

Fluke 279 FC
393 FC CAT III 1500 V True-rms Clamp Meter
Fluke 279 FC True-rms Thermal MultimeterFluke 393 FC Solar Clamp Meter CAT III 1500 V
True RMS readingsAC 
Basic DC accuracy0.09 % 
Auto / manual ranging  
Wide bandwidth500 Hz 
Voltage AC/DC1000 V 
Current AC/DCAC: 2500A w/ iFlex®. DC: w/ optional clamp accessories 
Resistance50 MΩ  
Frequency1 kHz  
Capacitance9,999 µF  
Continuity with beeper  
Diode test  
AC current  
AC voltage  
DC volts  
DC current  
True RMS  
Thermal imaging capability  
Display hold  
Min-max recording  
Display hold  
USB interfaceImage transfer to SmartView® 
Automatic power off  
Closed case calibration  
Low battery indication  
Overmolded case, integrated holster  
Operating temperature range-10 °C to +50 °C 
Dangerous voltage indication  
EN61010-1 CAT III1000 V 
EN61010-1 CAT IV600 V 
IP ratingIP 40 
Warranty3 years 
Category ratingsCAT III 1500 V, CAT IV 600 V 
Fluke Connect™ compatible  
Inrush current mode  
Low-pass filter  
18 inch iFlex® Flexible Current ProbeIncluded 
Visual continuity  
Audio polarity  
Data logging  
Jaw opening1.3 in (34 mm) 
Max wire size (MCM)750 
Current range AC (RMS)999.9 A 
AC responseTrue RMS 
Current range DC999.9 A 
Accuracy DC current: ± 5 counts2.00 % 
Voltage range DC1500 V 
Accuracy AC voltage: ± 5 counts1.00 % 
Resistance range60 kΩ 
Frequency measurement range500 Hz 
Accuracy AC current (50/60 Hz): ± 5 counts2.00 % 
Voltage range AC1000 V 
Accuracy DC voltage: ± 5 counts1.00 % 
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