Order #: 381
Mfg #: 5065875
Fluke 381 Remote Display True-rms AC/DC Clamp Meter with iFlex
Order #: 381
Mfg #: 5065875
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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
- 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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