DR-VAC03 intelligent three-phase voltage meter is an economical digital three-phase alternating voltage meter, which is mainly used for real-time measurement, display and alarm control of ac voltage in electrical lines. It has the characteristics of high measurement accuracy, good stability, intuitive reading, strong anti-interference ability, easy installation and simple wiring. It can be widely used in substation automation, distribution network automation, community power monitoring, industrial automation, intelligent buildings, intelligent distribution boards, instrument panels and switch cabinets as voltage parameter measurement, control and display components. It can directly replace the original pointer instrument.
The DR‑VAC03 is a digital three‑phase voltmeter designed for real‑time measurement, display and alarm control of line voltage. It offers high accuracy, strong anti‑interference, easy installation and simple wiring, suitable for substations, distribution automation, industrial plants and smart buildings.
The manual explains the panel layout, key functions, parameter setting steps, wiring diagrams, and provides an application example with alarm threshold configuration. It also lists technical specifications and environmental limits for proper operation. This manual is written in Chinese.
| Input voltage range | 0~500 V |
|---|---|
| Input network | 3‑phase 4‑wire or 3‑phase 3‑wire selectable |
| Response frequency | 50 Hz / 60 Hz |
| Voltage transformer ratio | 1–9999 (configurable) |
| Continuous over‑voltage tolerance | 1.2× |
| Measurement accuracy | ±0.5 % ± 2 d |
| Display resolution | 0.001 V (max) |
| Control output contacts | AC 220 V / 3 A |
| Operating temperature | 0 °C to +50 °C |
| Relative humidity | ≤ 85 % RH |
Press the setting key to enter parameter setting mode, then input the password (default 1005) and press the setting key again.
Each alarm relay contact is rated for AC 220 V at 3 A.
The display resolution is up to 0.001 V.