Fluke 381 — True‑RMS AC/DC Clamp Meter
The Fluke 381 is a True-RMS AC/DC clamp meter with a detachable wireless display unit and an included iFlex™ flexible current probe. The primary function of the instrument is current and voltage measurement with the option for remote display of measurement values.Functions and Features
- Detachable, magnetic wireless display unit with a wireless range of up to 30 ft from the measurement point.
- iFlex™ 18" flexible current probe included, extends the AC measurement range to 2500 A.
- True-RMS measurements for accurate readings on non-linear signals.
- Min/Max/Average and inrush recording for automatic documentation of variations and inrush currents.
- Integrated low-pass filter and advanced signal processing for stable readings in noisy electrical environments.
- Backlit display and automatic range selection.
- Package includes TL75 test leads, AC175 alligator clips, and soft carrying case.
Typical Applications
- Remote monitoring: using the detachable wireless display unit allows the display to be removed from the measurement point (up to 30 ft) and real-time values to be read while the display is located elsewhere.
- Inrush current capture: the inrush function and proprietary inrush technology are used to filter noise and capture the motor's starting current as seen by the circuit protection.
- Measuring high AC currents: the iFlex™ extends the measurement range to 2500 A AC for measuring larger conductors or bundled current paths.
Documentation
For full technical data and detailed specifications, please refer to the manufacturer's datasheet:
View datasheet from manufacturer
Specifications
- Measurement range, AC via jaw: 999.9 A (resolution 0.1 A). Accuracy: 2 % ± 5 digits.
- Measurement range, AC via iFlex™: 2500 A (resolution 0.1 A). Accuracy: 3 % ± 5 digits.
- Measurement range, DC: 999.9 A (resolution 0.1 A). Accuracy: 2 % ± 5 digits.
- AC/DC voltage: up to 1000 V (resolution 0.1 V). AC accuracy 1.5 % ± 5 digits; DC accuracy 1 % ± 5 digits.
- Resistance: up to 60 000 Ω (resolution 0.1 Ω). Accuracy: 1 % ± 5 digits.
- Frequency: up to 500 Hz (resolution 0.1 Hz). Accuracy: 0.5 % ± 5 digits.
- Safety rating: CAT IV 600 V, CAT III 1000 V.
- Wireless display: range up to 30 ft.
- Included accessories: 18" iFlex™ flexible current probe, TL75 test leads, AC175 alligator clips, soft carrying case.
- Other functions: True-RMS, continuity, hold, backlight, min/max, inrush, low-pass filter.
- Warranty: Three-year warranty (specified by the manufacturer).
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