The DTSD/DSSD858 is a three‑phase electronic multifunction energy meter designed for residential power measurement with advanced metering chips and multi‑rate technology. It supports automatic data storage, LCD display, infrared and RS‑485 communication, and various measurement functions.
The document covers product introduction, physical layout and installation, detailed functional descriptions (including energy measurement, demand recording, loss‑voltage detection, data rotation, key display, alarm, and power‑off wake‑up), programming procedures, communication settings, and maintenance information. This manual is written in Chinese.
| 额定电压 | （校表数据） |
|---|---|
| 额定电流 | （校表粕撕） |
| 电池容量 | 1200 mAh |
| 极限工作温度范围 | -30 °C‑80 °C |
| 工作湿度范围 | 85 % |
| 重量 | 约 1.8 kg |
Loss‑voltage detection is set via parameters 86.00 (judgment method) and 86.01 (condition).