Digital single-phase voltmeter
Key attributes
| Brand | RW Energy |
| Model NO. | Digital single-phase voltmeter |
| size | 72*72mm |
| Series | RWY |
Product descriptions from the supplier
Designed for quickly and accurately measuring AC voltage, this feature-packed meter employs advanced digital processing technology. It provides clear and eye-catching voltage readings, making it the ideal solution for monitoring power systems, equipment operation, or voltages on industrial control panels.
Core Features:
Clear Digital Display: Large LED/LCD display (optional) provides intuitive readings with a wide viewing angle.
High Accuracy Measurement: Precisely measures single-phase AC voltage, featuring typical accuracy of ±0.5% rdg. (±1% rdg.).
Wide Measurement Range: Standard models cover common voltages (e.g., AC 80V to 260V / 100V to 300V; other ranges available), offering strong adaptability.
Easy Installation: Flush panel mounting enables simple integration into distribution cabinets.
Stable & Reliable: Industrial-grade design ensures stable performance and long service life.
Safety Compliant: Meets relevant electrical safety standards.
Technical Specifications
| Specification | Technical Index | |
| Accuracy Class | Class 0.5 / 0.2, Bar indicator: ±2% | |
| Display Digits | Four digits plus sign bit | |
| Input | Nominal Input | AC U: 100V, 220V, 380V |
| Overrange | Continuous: 1.2x, Instantaneous: 2x/10s | |
| Frequency | 45~65Hz | |
| Power Supply | Auxiliary Supply | AC/DC 80~270V |
| Power Consumption | < 3.0VA | |
| Working Withstand Voltage | 2kV (50Hz/1min) | |
| Insulation Resistance | ≥100MΩ | |
| MTBF (Mean Time Between Failures) | ≥50,000 hours | |
| Operating Conditions | Ambient Temp: 0~60℃ Relative Humidity: ≤93% RH Corrosive Gas Free Altitude: ≤2000m |
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Wiring diagram：
Calibration can be done on-site with a standard voltage source or via PC software (with RS485-to-USB adapter), following IEC calibration procedures. The recommended calibration cycle is 12-24 months, or according to local industrial regulations.
It has CE, UL, RoHS certifications and complies with IEC 61010-1 (safety) and IEC 61326-1 (EMC) international standards, with overload protection and anti-interference design, ensuring safe operation in harsh industrial environments.
Yes, it is equipped with 4-20mA DC or 0-10V DC standard analog output (isolated design), directly compatible with Siemens, Schneider, ABB and other mainstream PLC/DCS systems, realizing seamless data transmission.
It supports universal input ranges (e.g., AC 0-600V, DC 0-1000V) and wide power supply (AC 85-265V), compatible with 110V/220V/380V power systems in Europe, America, Asia and other regions, meeting global industrial application needs.
It complies with IEC 61010 international calibration standard, with standard accuracy class 0.1%FS (error ≤±0.1% of full scale) or 0.5%FS, and high resolution up to 0.001V, ensuring precise voltage measurement in industrial environments.
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