This manual describes the calibration methods for 381 series remote display true-rms clamp meters.
This document serves as a calibration guide for the Fluke 381 Remote Display True-rms Clamp Meter. It outlines safety precautions, lists required equipment, and details specific performance tests for AC/DC current, voltage, resistance, frequency, and iFlex probe functionality.
The manual provides step-by-step instructions for performing calibration adjustments using the device's internal menu system. It covers changing passwords, executing various test points defined in Table 5, and performing a balance adjustment to ensure accurate jaw readings.
| AC Current via Jaw Range | 999.9 A |
|---|---|
| Accuracy (10-100 Hz) | 2 % ± 5 digits |
| AC Current via iFlex Range | 999.9 A / 2500 A |
| Operating Temperature | -10 °C to +50 °C |
The warranty period is three years and begins on the date of shipment.
Push the ZER button to exit balance adjustment after the display shows End.