The document describes the features and characteristics of Fluke 287/289 True-rms Digital Multimeters.
This manual introduces the Fluke 287/289 True‑RMS digital multimeters, covering safety precautions, symbols, and key features such as auto‑repeat, bar indicators, and the Input Alert™ function. Detailed sections explain button functions, display contrast adjustment, rotary switch positions, and how to select ranges and measurement modes for voltage, current, resistance, frequency, and more.
Later chapters describe how to configure instrument settings, use memory and data logging features, perform maintenance tasks like fuse and battery replacement, and troubleshoot common error messages. The final sections list the general and detailed specifications, including frequency range, input impedance, accuracy, and overload protection. This manual is written in Chinese.
| Frequency measurement range | 15 Hz – 100 kHz |
|---|---|
| Input impedance (AC) | 10 MΩ |
| Maximum input voltage | 1000 V |
| DC voltage accuracy (manual range) | ±12 digits |
Press the 7 key to increase contrast and the 8 key to decrease contrast when no menu item or input data is selected.
Use the Settings menu to select the desired language; the option is listed under "设置仪表的语言".