The Extech 401025 digital lux meter user manual provides setup, operation, range selection, zeroing, battery replacement, specifications, and calibration…
This manual introduces the Extech 401025 digital lux meter, describing its LCD display, data hold switch, power/range switches, analog output, battery compartment, unit and response switches, and light sensor. It also directs users to the Extech website for the latest guides and support.
The guide covers how to operate the meter in Lux or foot‑candle units, select appropriate measurement ranges, perform zero adjustments, use the analog output for data logging, apply illumination‑type correction factors, replace the 9 V battery, and understand the detailed specifications and typical brightness levels provided in the appendices. This manual is written in Chinese.
| Display | 13 mm (0.5") LCD |
|---|---|
| Lux Measurement Range | 0 – 50,000 Lux |
| Foot‑candle Measurement Range | 0 – 5,000 Fc |
| Power Source | 9 V DC battery |
| Weight | 220 g (0.52 lb) |