What Is Single-phase Voltage Meter？
The ZHIMING ZM-V, DV Series Digital Single-phase Voltage Meter delivers high-precision single-phase AC and DC voltage measurement with a digital display and local data query function, making it a reliable choice for real-time power monitoring. It features programmable voltage ratio settings, RS-485 communication using Modbus-RTU protocol, and supports switch input/output and analog signal output for flexible system integration. With a wide-range auxiliary power supply of AC/DC 80V–270V or AC 220V and multiple form factor options, this Digital Single-phase Voltage Meter adapts to various cabinet layouts in industrial and commercial applications.
Main Technical Schematic of the Single-phase Voltage Meter
Lưu ý: Các mẫu có thông số kỹ thuật đặc biệt khác sẽ được cung cấp theo yêu cầu của người dùng
Working Conditions of the Single-phase Voltage Meter
- Operating Temperature — -10°C to +55°C
- Storage Temperature — -25°C to +70°C
- Humidity — Relative humidity ≤ 93%, no corrosive gas present
- Altitude — No more than 2500m
Thông số kỹ thuật sản phẩm
| Tham số | Thông số kỹ thuật |
|---|---|
| Độ chính xác | Voltage: Class 0.5 |
| Nguồn điện dự phòng | AC/DC 80V–270V, AC 220V; Power consumption <4VA |
| Giao diện truyền thông | 1× RS-485, Modbus-RTU protocol; Baud rate 1200–9600 bps (default 2400 bps) |
| Switch Input | 2 dry contact inputs |
| Switch Output | 2 relay outputs, AC 250V/5A, DC 30V/5A |
| Analog Output | 1× 0/4–20mA or 0–5/10V |
| Connection Mode | Single phase |
| Điện áp định mức | AC 57.7V, 100V, 220V, 380V; DC 2V, 20V, 200V, 600V |
| Khả năng chịu quá tải | 1.2× rated continuous, 2× rated / 1s instantaneous |
| Signal Power Consumption | <1VA per phase |
| Input Impedance | >300kΩ |
| Frequency Range | 45–65Hz |
| Insulation Resistance | >100MΩ |
| AC Withstand Voltage | AC 2kV |
| Electrostatic Discharge (ESD) | Class 4 |
| Electrical Fast Transient Burst | Class 4 |
| Surge (Impact) | Class 4 |
Why Choose ZHIMING's Single-phase Voltage Meter?
Class 0.5 High-Precision Measurement
The Digital Single-phase Voltage Meter delivers Class 0.5 accuracy for both AC and DC single-phase voltage measurement, providing reliable data for power monitoring and control applications.
Multi-Interface Integration
With RS-485 Modbus-RTU communication, dual switch inputs, dual relay outputs, and an analog output channel (0/4–20mA or 0–5/10V), this Digital Single-phase Voltage Meter connects directly to PLCs, SCADA, and energy management platforms without extra signal converters.
Wide-Range Power Supply & Rugged Reliability
An ultra-wide auxiliary power input of AC/DC 80V–270V or AC 220V ensures stable operation under fluctuating supply conditions, while Class 4 EMC immunity, >100MΩ insulation resistance, and AC 2kV withstand voltage guarantee dependable performance in harsh industrial environments.
Flexible Installation & Standards Compliance
Multiple form factors suit various cabinet layouts for simplified panel integration. Fully compliant with GB/T 22264.1-2008 and GB/T 22264.7-2008, backed by competitive factory pricing (MOQ 100 pieces) and dedicated engineering support.
Câu hỏi thường gặp
What voltage types can this Digital Single-phase Voltage Meter measure??
The ZM-V, DV Series supports both single-phase AC voltage (57.7V, 100V, 220V, 380V) and DC voltage (2V, 20V, 200V, 600V). The rated input range covers common low-voltage distribution and control circuit requirements, with an overload capacity of 1.2× continuous and 2× instantaneous.
How does the RS-485 communication work on this single-phase voltage meter?
The Digital Single-phase Voltage Meter features one RS-485 communication channel operating on the Modbus-RTU protocol. The baud rate is configurable from 1200 to 9600 bps (default 2400 bps), allowing it to connect directly to PLCs, HMIs, SCADA systems, and energy management platforms for remote data reading and parameter configuration.
Can the meter output signals to external controllers or alarms?
Yes. In addition to the RS-485 digital interface, this Digital Single-phase Voltage Meter provides one analog output channel (0/4–20mA or 0–5/10V, programmable) and two relay outputs (AC 250V/5A, DC 30V/5A) for alarm signaling or load control. Two dry contact switch inputs are also available for status monitoring or external trigger functions.
What form factors are available for different cabinet installations?
The Digital Single-phase Voltage Meter is offered in multiple form factors to fit various panel and cabinet layouts. Please refer to the Specification & Dimensions section or contact ZHIMING’s engineering team with your cabinet dimensions for the most suitable model recommendation.
What are the operating environment requirements for this single-phase voltage meter?
The meter operates reliably in ambient temperatures from -10°C to +55°C, with storage tolerance from -25°C to +70°C. Relative humidity should not exceed 93% without corrosive gases, and installation altitude is limited to 2500m maximum.
