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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.
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 |
Specifications | |
Fluke 381 Remote Display True RMS AC/DC Clamp Meter with iFlex | |
Features | Parameters |
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) | |
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 (head to electronics connector) | 1.8 m |
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 |
Specifications | |
Fluke 381 Remote Display True RMS AC/DC Clamp Meter with iFlex | |
Model Overview | |
Model | Description |
Fluke 381 | Remote Display True RMS AC/DC Clamp Meter with iFlex Included Accessories: 18-inch iFlex®flexible current probe Coated instruction card Safety information sheet Soft carrying case TL75 test leads Five AA Alkaline batteries |
Fluke 381 CAL | Remote Display True RMS AC/DC Clamp Meter with iFlex; with a traceable certificate of calibration with data from Fluke Included Accessories: 18-inch iFlex®flexible current probe Coated instruction card Safety information sheet Soft carrying case TL75 test leads Five AA Alkaline batteries A traceable certificate of calibration with data from Fluke |