Fluke 381

Remote Display True-rms AC/DC Clamp Meter w/iFlex

Order #: 381

Mfg #: 5065875

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Special Price $563.00 Regular Price $624.99

Fluke 381

Remote Display True-rms AC/DC Clamp Meter w/iFlex

Order #: 381

Mfg #: 5065875

Special Price $563.00 Regular Price $624.99
Clamps provide the ideal measurement flexibility for electricians by providing all of the measurements needed, without having to reach for another tool.

Check out Transcat's Fluke Clamp Meter Selection Guide!

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Fluke 381 Overview

What Once Took Two People, Now Takes One

Now one technician can do jobs that would otherwise require two people. Clamp the Fluke 381 around a conductor, remove the display and walk across the room to operate controls or remove protective equipment, all while watching real-time readings.

The iFlex® Flexible Current Probe (included) expands the measurement range to 2500 A AC while providing increased display flexibility. With a cord that runs 6 feet, you can finally measure those tight spaces, awkward sized conductors and disorganized wires.

Fluke 381 Highlights

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  • The first clamp meter with a detachable, remote display for easier, faster, safer measurements
  • 1000 A ac and dc current measurement with fixed Jaw
  • 2500 A ac current measurement with iFlex flexible current probe
  • 1000 V ac and dc voltage measurement
  • True-rms ac voltage and current for accurate measurements on non-linear signals
  • Frequency measurement to 500 Hz with both Jaw and iFlex
  • 60 kΩ resistance measurement to with continuity detection
  • Min, max, average and inrush recording to capture variations automatically
  • Wireless technology allows the display to be carried up to 30 ft. away from the point of measurement for added flexibility without interference with measurement accuracy
  • iFlex flexible current probe expands the measurement range to 2500 A ac while providing increased display flexibility, ability to measure awkward sized conductors and improved wire access
  • CAT IV 600V, CAT III 1000 V safety rating
  • Integrated low pass filter and state of the art signal processing allows for use in noisy electrical environments while providing stable readings

Each Fluke 381 Includes

  • 18-inch iFlex™ flexible current probe
  • Coated instruction card
  • Safety information sheet
  • Soft carrying case
  • TL75 test leads
  • Five AA Alkaline batteries

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AC Current via Jaw
Range 999.9 A
Resolution 0.1 A
Accuracy 2% ± 5 digits (10-100 Hz)
5% ± 5 digits (100-500 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 via Flexible Current Probe
Range 999.9 A / 2500 A (45 Hz – 500 Hz)
Resolution 0.1 A / 1 A
Accuracy 3% ± 5 digits
Crest Factor (50/60 Hz) 3.0 at 1100 A
2.5 at 1400 A
1.42 at 2500 A
Add 2% for C.F. > 2
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 digits
AC Voltage
Range 600 V /1000 V
Resolution 0.1 V / 1 V
Accuracy 1.5% ± 5 digits (20 – 500 Hz)
DC Voltage
Range 600.0 V /1000 V
Resolution 0.1 V / 1 V
Accuracy 1% ± 5 digits
Frequency – Via Jaw
Range 5.0 – 500.0 Hz
Resolution 0.1 Hz
Accuracy 0.5% ± 5 digits
Trigger Level 5 – 10 Hz, ≥ 10 A
10 – 100 Hz, ≥ 5 A
100 – 500 Hz, ≥ 10 A
Frequency via Flexible Current Probe
Range 5.0 to 500.0 Hz
Resolution 0.1 Hz
Accuracy 0.5% ± 5 digits
Trigger Level 5 to 20 Hz, ≥ 25 A
20 to 100 Hz, ≥ 20 A
100 to 500 Hz, ≥ 25 A
Resistance
Range 600 Ω/6 kΩ/60 kΩ
Resolution 0.1 Ω/1 Ω/10 Ω
Accuracy 1% ± 5 digits
Mechanical Specifications
Size (L x W x H) 277 x 88 x 43 mm (55 mm for remote unit)
Weight 350 g
Jaw Opening 34 mm
Flexible Current Probe Diameter 7.5 mm
Flexible Current Probe Cable Length 1.8 m
(head to electronics connector)
Environmental Specifications
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)
(Without Condensation)
Operating Altitude 2,000 meters
Storage Altitude 12,000 meters
EMI, RFI, EMC, RF EN 61326-1:2006, EN 61326-2-2:2006
ETSI EN 300 328 V1.7.1:2006
ETSI EN 300 489 V1.8.1:2008
FCC Part 15 Subpart C Sections 15.207, 15.209, 15.249
FCCID: T68-F381
RSS-210 IC: 6627A-F381
Temperature Coefficients Add 0.1 x specified accuracy for each degree C above 28°C or below 18°C
Wireless Frequency 2.4 GHz ISM Band 10 meter range
Safety Compliance ANSI/ISA S82.02.01:2004
CAN/CSA-C22.2 No. 61010-1-04
IEC/EN 61010-1:2001 to 1000V CAT III, 600V CAT IV.
Double Insulation Clearance Per IEC 61010-2-032
Double Insulation Creepage Per IEC 61010-1


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