Fluke 381 Remote Display True RMS AC/DC Clamp Meter with iFlex®

  • Double Clamp Meter | Fluke 381 True-RMS Clamp Meter | Fluke
  • Double Clamp Meter | Fluke 381 True-RMS Clamp Meter | Fluke
  • Double Clamp Meter | Fluke 381 True-RMS Clamp Meter | Fluke
  • Double Clamp Meter | Fluke 381 True-RMS Clamp Meter | Fluke

Key features

  • 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
  • The removable magnetic display can be conveniently mounted where it is easily seen
  • iFlex® Flexible Current Probe expands the measurement range to 2500 A AC
  • CAT IV 600 V, CAT III 1000 V
  • Integrated low pass filter and state-of-the-art signal processing allows for use in noisy electrical environments while providing stable readings
  • Proprietary inrush measurement technology to filter out noise and capture motor starting current exactly as the circuit protection sees it
  • Ergonomic design fits in your hand and can be used while wearing protective equipment
  • Radio transmitter automatically sets the correct measurement range so you do not need to change the switch positions while taking a measurement
  • Three-year warranty
  • Soft carrying case

Safety Conformance
IEC/EN 61010-1:2001, 1000V CAT III, 600V CAT IV

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Product 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.

Models

Fluke 381
Fluke 381 Remote Display True RMS AC/DC Clamp Meter with iFlex®
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Includes:

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

Specifications

Electrical Specifications
AC Current via Jaw
Range999.9 A
Resolution0.1 A
Accuracy2% ± 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
Range999.9 A / 2500 A (45 Hz – 500 Hz)
Resolution0.1 A / 1 A
Accuracy3% ± 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
Position Sensitivity
Flexible current probeDistance from Optimum
i2500-10 Flexi2500-18 FlexError
A0.5 in (12.7 mm)1.4 in (35.6 mm)±0.5%
B0.8 in (20.3 mm)2.0 in (50.8 mm)±1.0%
C1.4 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
Range999.9 A
Resolution0.1 A
Accuracy2% ± 5 digits
AC Voltage
Range600 V /1000 V
Resolution0.1 V / 1 V
Accuracy1.5% ± 5 digits (20 – 500 Hz)
DC Voltage
Range600.0 V /1000 V
Resolution0.1 V / 1 V
Accuracy1% ± 5 digits
Frequency – Via Jaw
Range5.0 – 500.0 Hz
Resolution0.1 Hz
Accuracy0.5% ± 5 digits
Trigger Level5 – 10 Hz, ≥ 10 A
10 – 100 Hz, ≥ 5 A
100 – 500 Hz, ≥ 10 A
Frequency via Flexible Current Probe
Range5.0 to 500.0 Hz
Resolution0.1 Hz
Accuracy0.5% ± 5 digits
Trigger Level5 to 20 Hz, ≥ 25 A
20 to 100 Hz, ≥ 20 A
100 to 500 Hz, ≥ 25 A
Resistance
Range600 Ω/6 kΩ/60 kΩ
Resolution0.1 Ω/1 Ω/10 Ω
Accuracy1% ± 5 digits
Mechanical Specifications
Size (L x W x H)277 x 88 x 43 mm (55 mm for remote unit)
Weight350 g
Jaw Opening34 mm
Flexible Current Probe Diameter7.5 mm
Flexible Current Probe Cable Length
(head to electronics connector)
1.8 m
Environmental Specifications
Operating Temperature-10°C to +50°C
Storage Temperature-40°C to +60°C
Operating HumidityNon 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 Altitude2,000 meters
Storage Altitude12,000 meters
EMI, RFI, EMC, RFEN 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 CoefficientsAdd 0.1 x specified accuracy for each degree C above 28°C or below 18°C
Wireless Frequency2.4 GHz ISM Band 10 meter range
Safety ComplianceANSI/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 ClearancePer IEC 61010-2-032
Double Insulation CreepagePer IEC 61010-1
Agency Approvals

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