The Qingzhi ZWD414B and ZWD433B comprehensive power transducers user manual provides specifications, installation, wiring, parameter settings, and…
The ZWD414B (single‑phase) and ZWD433B (three‑phase) comprehensive power transducers measure AC voltage, current, active, reactive and apparent power, as well as energy consumption. They support RS‑485/232 MODBUS RTU communication and offer optional relay and switch outputs.
The manual covers product selection, main technical parameters, physical layout, preparation steps, detailed parameter configuration, wiring diagrams, serial‑port guide, extended functions, packing list, safety notices and maintenance procedures. It also includes troubleshooting tips and a FAQ section for common issues. This manual is written in Chinese.
| Voltage measurement range | 10–500 V |
|---|---|
| Current measurement range (single‑phase) | 0.02–20 A |
| Voltage input impedance | >2 MΩ |
| Current input impedance | <10 mΩ |
| Power supply | AC 85–265 V, 45–65 Hz; DC 125–250 V |
| Communication protocol | MODBUS RTU over RS‑485/232 |
| Display update rate | ≈2 times/second |
| Conversion rate | ≈8000 times/second |
| Dimensions (W×H×D) | 110 mm × 74 mm × 63 mm |
| Weight | ≈400 g |
The transducer can be powered from AC 85–265 V at 45–65 Hz or from DC 125–250 V.
If there is no operation for 15 seconds, the device automatically exits the setting mode and does not save the changes.