This document is the updated version of Fluke 287/289 Calibration Supplement Manual, which updates some measurement data and safety information.
This document provides calibration updates and specification changes for Fluke 287/289 multimeters. It includes revised accuracy values for resistance and frequency counter measurements, updated input characteristics, and modified safety and compliance sections. The supplement also replaces outdated safety information and adds new warnings and cautions for safe operation.
Changes cover multiple pages, including updates to tables, footnotes, and safety guidelines. It references the main user manual for complete operating instructions and includes compliance with IEC standards and regional regulations such as Korea’s Class A equipment classification.
| Resistance Accuracy for 500 kΩ | 0.05% +15 |
|---|---|
| Pulse Width Accuracy for 0.1000 ms | 0.002 ms + 30 counts |
| Typical Short Circuit Current for 5 MΩ | 1A |
| Measurement Category | CAT IV / CAT III |
The accuracy was changed from 0.05% +2 to 0.05% +15.
It was changed from 0.3 nA to 1A.
A new warning advises measuring a known voltage first to ensure the meter operates correctly.