The Huibang HB-3300 manual describes functions, technical specs, wiring, operation, and Modbus RTU communication for three‑phase electrical parameter…
The HB-3300 series is a three‑phase intelligent electrical parameter monitor designed for power, petrochemical, chemical, metallurgical, coal and construction industry installations. It measures voltage, current, power, frequency and energy, and provides isolation and alarm functions for reliable automation and control.
The manual covers device overview, input/output specifications, display operation, measurement accuracy, signal processing, parameter setting, communication (RS485 Modbus RTU), power supply, environmental limits, wiring diagrams, alarm configuration, event recording and remote control functions. This manual is written in Chinese.
| Input AC voltage range | 0–100 VAC (PT) / 0–450 VAC (direct) |
|---|---|
| Input AC current range | 0–5 A (CT) |
| Communication interface | RS485 Modbus RTU |
| Power supply voltage | AC 85–260 V / DC 85–360 V, power <5 W |
| Voltage/current accuracy | 0.2 % FS |
| Operating temperature range | -10 °C to 50 °C |
| Display refresh rate | 1 Hz (once per second) |
| Electrical isolation | Full isolation between inputs, outputs and communication |
It uses an RS485 industrial bus with the standard Modbus RTU communication protocol.
The instrument provides three analog voltage inputs, each supporting 0–100 VAC (PT) or 0–450 VAC direct input.
It can be powered from AC 85–260 V or DC 85–360 V, with power consumption less than 5 W.
The accuracy for voltage and current measurements is 0.2 % of full scale.