The manual provides a complete overview of the PZ series programmable intelligent electric parameter meters, covering model variants, measurement capabilities, and interface options. It includes detailed installation dimensions, wiring diagrams, and safety precautions for mounting the meters in DC systems such as solar power, telecom base stations, and DC distribution panels.
Operational instructions cover menu navigation, key functions, programming procedures, alarm settings, and Modbus‑RTU communication setup. The document also explains how to configure analog and digital I/O, set voltage/current ratios, and perform remote data acquisition and control over RS‑485 networks. This manual is written in Chinese.
| Input voltage range | 0~48V, 0~110V, 0~220V, 0~1000V |
|---|---|
| Power consumption | ≈1 mW |
| Overload capacity | 2 × rated, 1 s |
| Accuracy class | 0.5 level |
| Insulation resistance | ≥100 MΩ |
| Operating temperature | -10 °C to 155 °C |
| Maximum humidity | ≤93 %RH |
| Maximum altitude | 2500 m |
| Mean time between failures | ≥50 000 h |
The default setting is 9600 baud, 8 data bits, no parity, 1 stop bit.
Up to 128 meters can be connected on one RS‑485 bus.
Communication parameters are set in menu 5.4.3 of the manual.
Register 0012H contains alarm status and digital I/O bits.