Fluke 377 FC True-rms Non-Contact Voltage AC/DC Clamp Meter with iFlex

Why we love the Fluke 377FC

Voltage and current measurements with FieldSense™ technology

The Fluke 377 FC true-rms clamp meter is designed to make testing easier and safer thanks to FieldSense™ technology, so you can test without touching a live conductor, and what's more, the display turns green when a stable FieldSense measurement is detected. Visual Continuity also provides a bright green screen for easy detection of continuity in noisy work areas.

Get accurate voltage and current measurements through the clamp jaw. Simply clip the black test lead to any electrical ground, put the clamp jaw around the conductor and see reliable, accurate voltage and current values on the display.

The iFlex flexible current probe allows you to measure AC current as high as 2500A, its design means you can assess large conductors in difficult to reach spaces with ease.

Complete 3-phase measurements in quick, easy steps

Complete 3-phase voltage and current tests in 3 easy steps
Full set of phase-to-ground and phase-to-phase values calculated and shown on the meter
Values are also displayed on your smartphone and saved to the cloud via Fluke Connect software
Phase rotation auto-calculated and shown on the Fluke Connect software
No more hand-written notes or complicated math.

Record, analyze, share results with Fluke Connect® software

The Fluke Connect (FC) capability allows you to:

Save measurements to your phone and the Fluke Cloud, for comparison of readings over time
remotely log, trend and monitor measurements to pinpoint intermittent faults
Gather data as the basis for a preventive maintenance program

See it in action!

Fluke 377 FC and 378 FC True-rms Clamp Meters

Fluke 377FC True-RMS Non-Contact AC/DC Clamp Meter Key Features

Measure voltage and current with your clamp jaw
Faster, safer testing - all without touching a live wire - using FieldSense™ technology
Complete 3-phase voltage and current tests with fewer steps
Power quality indicator monitors equipment for power-related issues
iFlex Probe enables measurement of high currents up to 2500A
iFlex Probe provides access to large conductors in tight spaces
Backlit display
The display turns green when the continuity beeper sounds and when a stable FieldSense measurement is determined
Visual Continuity indication ensures continuity can be identified in noisy environments
Fluke Connect enables communication with smartphone/ tablet with the Fluke Connect App installed
Monitor log and trend data via the Fluke Connect App
View readings and results and calculate Phase Rotation via the Fluke Connect App

What’s Included?

377 FC Non-Contact Voltage True-rms Clamp Meter
iFlex flexible current probe (18 inches; 48 cm)
TL224 silicone insulated test leads
TP175 adjustable length test probes
AC285 grounding clip (black, quantity one)
TPAK magnetic hanging kit, with 9 inch (23 cm) hanging strap
Premium Carrying case
Quick reference guide

Tech Specs

Fluke 377FC Non-Contact Voltage True-rms AC/DC Clamp Meters with iFlex Technical Specifications

General specifications
General Maximum Voltage between any Terminal and Earth Ground		1000 V
Battery	Type	2 AA IEC LR6 alkaline
	Life	200 hour
Display		Dual readout
Automatic Power Off		20 minutes

Electrical
AC Current: Jaw
Range	999.9 A
Resolution	0.1 A
Accuracy	2 % ±5 digits (10 Hz to 100 Hz) 2.5 % ±5 digits (100 Hz to 500 Hz)
Crest Factor (50/60 Hz)	3 @ 500 A 2.5 @ 600 A 1.42 @ 1000 A Add 2 % for C.F. >2
AC Current: Flexible Current Probe
Range	2500 A
Resolution	1 A (≤2500 A) 0.1 A (≤999.9 A)
Accuracy	3 % ±5 digits (5 Hz to 500 Hz)
Crest Factor (50/60Hz)	3.0 at 1100 A 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	999.9 A
Resolution	0.1 A
Accuracy	2 % ±5 digits¹
^[1]When using the ZERO function to compensate for offsets
AC Voltage: Field Sense
Range	1000 V
Resolution	1 V (≤1000V)
Accuracy	≤4/0 AWG	3 % ±5 digits (45 Hz to 66 Hz)
	≥4/0 AWG	5 % ±5 digits (45 Hz to 66 Hz)
Position wire as close as possible to jaw opening (see illustration)
AC Voltage: Test Leads
Range	600.0 V 1000 V
Resolution	0.1 V (≤600.0 V) 1 V (≤1000 V)
Accuracy	1 % ±5 digits (20 Hz to 500 Hz)
DC Voltage
Range	600.0 V 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
Amps Frequency: Jaw
Range	5.0 Hz to 500.0 Hz
Resolution	0.1 Hz
Accuracy	0.5 % ±5 digits
Trigger Level	5 Hz to 10 Hz, ≥10 A 10 Hz to 100 Hz, ≥ 5 A 100 Hz to 500 Hz, ≥ 10 A
Amps Frequency: Flexible Current Probe
Range	5.0 Hz to 500.0 Hz
Resolution	0.1 Hz
Accuracy	0.5 % ±5 digits
Trigger Level	5 Hz to 20 Hz, ≥25 A 20 Hz to 100 Hz, ≥20 A 100 Hz to 500 Hz,≥25 A
Resistance
Range	60.00 kΩ 6000 Ω 600.0 Ω
Resolution	0.1 Ω (≤600.0 Ω) 1 Ω (≤6000 Ω) 10 Ω (≤60.00 kΩ)
Accuracy	1 % ±5 digits
Capacitance
Range	1000 μF
Resolution	0.1 μF (≤100.0 μF) 1 μF (≤1000 μF)
Accuracy	1 % ±4 digits
Mechanical
Size (L x W x H)	274 mm x 86 mm x 47 mm
Weight (with Batteries)	463 g
Jaw Opening	34 mm
Flexible Current Probe Diameter	7.5 mm
Flexible Current Probe Cable Length (head to electronics connector)	1.8 m
Rogowski Coil Length	450 mm
Environmental
Operating Temperature	-10 °C to 50 °C
Storage Temperature	-40 °C to 60 °C
Operating Humidity (without condensation)	Non condensing (<10 °C) ≤90 % RH (10 °C to 30 °C) ≤75 % RH (30 °C to 40 °C) ≤45 % RH (40 °C to 50 °C)
Temperature Coefficients	Add 0.1 x specified accuracy for each degree C >28 °C or <18 °C
Ingress Protection	IEC 60529: IP30 (jaw closed)
Operating Altitude	2000 m
Storage Altitude	12 000 m
Electromagnetic Compatibility (EMC)
	International	IEC 61326-1: Portable Electromagnetic Environment IEC 61326-2-2, CISPR 11: Group 1, Class B
	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 B: Equipment is suitable for use in domestic establishments and in establishments directly connected to a low voltage power supply network which supplies buildings used for domestic purposes. 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 Broadcast & Communications 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.
Safety
General	IEC 61010-1: Pollution degree 2
Measurement	IEC 61010-2-032: CAT III 1000 V / CAT IV 600 V IEC 61010-2-033: CAT III 1000 V / CAT IV 600 V
Current Clamp for Leakage Current Measurements	IEC 61557-13: Class 2, ≤30 A/m
Wireless Radio
Radio Frequency Certification	FCC ID: T68-FBLE IC:6627A-FBLE
Frequency Range	2405 MHz to 2480 MHz
Output Power	<100 mW
Radio Frequency Data	Radio Frequency Data For Class A Devices SIMPLIFIED EU DECLARATION OF CONFORMITY Hereby, Fluke declares that the radio equipment contained in this Product is in compliance with Directive 2014/53/EU. The full text of the EU declaration is available at the following internet address: https://dam-assets.fluke.com/s3fs-public/FLK_RED_1aeng0900.pdf.

Downloads

Fluke 377 & 378 AC-DC Clamp Meter - Datasheet Datasheets

SKU	FLUKE377FC/E
Manufacturer Part Code	5111858
Country of Origin	United States