True-RMS AC/DC Clamp Meter

Fluke 374 FC delivers advanced troubleshooting performance and wireless connectivity

The Fluke 374 FC, part of the Fluke Connect family of wireless test tools, delivers the standard features you need for everyday troubleshooting. Measure AC and DC current to 600 A with the fixed jaw clamp or add an optional iFlex® flexible current probe to measure all the way to 2500 A. The large diameter and flexible design of the iFlex probe make it easier to measure around large conductors in tight spaces or to access tightly packed wires. You can also use the 374 FC to measure AC and DC voltage to 1000 V and resistance to 6000 Ω.

Use wireless connectivity to keep a safe distance

The 374 FC is Fluke Connect-enabled to wirelessly transmit results via Bluetooth to Apple and Android devices. That means you can read the results out of the arc flash zone, wearing less PPE. You can even save results to the cloud and create and send reports in email right from the field. Or converse in real-time with ShareLive™ video calls.

Other useful capabilities:

• Compatible with optional TPAK magnetic hanging strap
• Comes with soft carrying case, batteries, and three-year warranty
• Measures capacitance to 1000 µF
• Features CAT III 1000 V, CAT IV 600 V safety rating
• Provides True-RMS voltage and current measurements to accurately measure non-linear signals
• Includes Min/Max/Avg and inrush recording to capture variations automatically
• Runs on two AA alkaline batteries

General Specifications
AC Current via Jaw
Range	600.0 A
Resolution	0.1 A
Accuracy	2% ±5 digits (10 Hz to 100 Hz) 2.5% ±5 digits (100-500 Hz)
Crest Factor (50 Hz/60 Hz)	2.5 @ 600 A Add 2% for C.F. >2
AC Current via Flexible Current Probe
Range	2500 A
Resolution	0.1 A (≤ 600 A) 1 A (≤ 2500 A)
Accuracy	3% ±5 digits (5 – 500 Hz)
Crest Factor (50/60Hz)	2.5 at 1400 A 1.42 at 2500 A Add 2% for C.F. > 2
Position Sensitivity
	Distance from Optimum
		i2500-10 Flex	i2500-18 Flex	Error
	A	0.5 in (12.7 mm)	1.4 in (35.6 mm)	±0.5 %
	B	0.8 in (20.3 mm)	2.0 in (50.8 mm)	±1.0 %
	C	1.4 in (35.6 mm)	2.5 in (63.5 mm)	±2.0 %
Measurement uncertainty assumes centralized primary conductor at optimum position, no external electrical or magnetic field, and within operating temperature range.
DC Current
Range	600.0 A
Resolution	0.1 A
Accuracy	2% ±5 digits
AC Voltage
Range	1000 V
Resolution	0.1 V (≤600.0 V) 1 V (≤1000 V)
Accuracy	1.5% ±5 digits (20 Hz to 500 Hz)
DC Voltage
Range	1000 V
Resolution	0.1 V (≤600.0 V) 1 V (≤1000 V)
Accuracy	1% ±5 digits
mV dc
Range	500.0 mV
Resolution	0.1 mV
Accuracy	1% ±5 digits
Resistance
Range	6000 Ω
Resolution	0.1 Ω (≤600 Ω) 1 Ω (≤6000 Ω)
Accuracy	1% ±5 digits
Capacitance
Range	1000 μF
Resolution	0.1 μF (≤ 100 μF) 1 μ F (≤ 1000 μF)
Accuracy	1% ±4 digits
Mechanical Specifications
Maximum voltage between any terminal and earth ground	1000 V
Batteries	2 AA, NEDA 15A, IEC LR6
Operating temperature	-10 °C to +50 °C
Storage temperature	-40 °C to +60 °C
Operating humidity - non-condensing (< 10°C)	≤90% RH (at 10 °C to 30 °C) ≤75% RH (at 30 °C to 40 °C) ≤45% RH (at 40 °C to 50 °C)
Operating altitude	3000 m
Storage altitude	12,000 m
Size (L x W x H)	249 x 85 x 45 mm
Weight	395 g
Jaw opening	34 mm
Flexible current probe diameter	7.5 mm
Flexible current probe cable length (head to electronics connector)	1.8 m
Safety	IEC 61010-1, Pollution Degree 2 IEC 61010-2-032: CAT III 1000 V / CAT IV 600 V IEC 61010-2-033:CAT III 1000 V / CAT IV 600 V
IP rating	IEC 60529: IP30, non-operating
Radio Frequency Certification FCC ID	T68-FBLE IC:6627A-FBLE
Electromagnetic Compatibility (EMC)
International	IEC 61326-1: Portable, Electromagnetic Environment, IEC 61326-2-2 CISPR 11: Group 1, Class A Group 1: Equipment has intentionally generated and/or uses conductively-coupled radio frequency energy that is necessary for the internal function of the equipment itself. Class A: Equipment is suitable for use in all establishments other than domestic and those directly connected to a low-voltage power supply network that supplies buildings used for domestic purpose. There may be potential difficulties in ensuring electromagnetic compatibility in other environments due to conducted and radiated disturbances. Emissions that exceed the levels required by CISPR 11 can occur when the equipment is connected to a test object.
Korea (KCC)	Class A Equipment (Industrial Broadcasting & Communication Equipment) Class A: Equipment meets requirements for industrial electromagnetic wave equipment and the seller or user should take notice of it. This equipment is intended for use in business environments and not to be used in homes.
USA (FCC)	47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103.
Temperature coefficients	Add 0.1 x specified accuracy for each degree C above 28 °C or below 18 °C