Product selection guide: Solar industry tools

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	Fluke 279 FC True-rms Thermal Multimeter	Fluke 393 FC Solar Clamp Meter CAT III 1500 V

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Category

Category

Wireless

Basic features

Counts	6000
True RMS readings	AC
Basic DC accuracy	0.09 %
Auto / manual ranging
Digits	3.5
Wide bandwidth	500 Hz

Measurements

Voltage AC/DC	1000 V
Current AC/DC	AC: 2500A w/ iFlex®. DC: w/ optional clamp accessories
Resistance	50 MΩ
Frequency	1 kHz
Capacitance	9,999 µF
Continuity with beeper
Diode test
AC current
AC voltage
Continuity
DC volts
DC current
True RMS
Min-Max-Avg

Display

Thermal imaging capability
Display hold
Backlight

Diagnostics and data

Min-max recording
Display hold
USB interface	Image transfer to SmartView®

Other features

Automatic power off
Closed case calibration
Low battery indication
Overmolded case, integrated holster
Operating temperature range	-10 °C to +50 °C

Warranty and safety

Dangerous voltage indication
EN61010-1 CAT III	1000 V
EN61010-1 CAT IV	600 V
IP rating	IP 40
Warranty	3 years

Mechanical, environmental and safety ratings

Category ratings

CAT III 1500 V, CAT IV 600 V

Special features

Fluke Connect™ compatible
Inrush current mode
Low-pass filter
18 inch iFlex® Flexible Current Probe		Included
Visual continuity
Audio polarity
Data logging

Specifications

Jaw opening		1.3 in (34 mm)
Max wire size (MCM)		750
Current range AC (RMS)		999.9 A
AC response		True RMS
Current range DC		999.9 A
Accuracy DC current: ± 5 counts		2.00 %
Voltage range DC		1500 V
Accuracy AC voltage: ± 5 counts		1.00 %
Resistance range		60 kΩ
Frequency measurement range		500 Hz
Accuracy AC current (50/60 Hz): ± 5 counts		2.00 %
Voltage range AC		1000 V
Accuracy DC voltage: ± 5 counts		1.00 %

Unit power

Auto off

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