This operation manual introduces the basic operation methods of the Dongji PM810/820/850 electric meter, including device wiring, setting methods, display functions, etc.
This manual provides step‑by‑step instructions for configuring M/G PM810/820/850 electric meters before first use. It explains how to enter the factory password (default 0000), set date and time, and adjust CT/PT ratios via the MAINT menu.
The document also describes the display screens for current, voltage, power and harmonic data, lists the supported system configurations (1Φ2W, 3Φ3W2CT, 3Φ3W3CT, 3Φ4W3CT) and provides wiring diagrams and a quick‑reference table for common functions. This manual is written in Chinese.
| Maximum Input Voltage | ≤ 600 V |
|---|---|
| Supported System Configurations | 1Φ2W, 3Φ3W2CT, 3Φ3W3CT, 3Φ4W3CT |
The default password set at the factory is 0000.