What Is Digital Voltage & Current Combination Meter?
The Digital Voltage&Current Combination Meter is a high-precision multifunctional instrument designed for three-phase AC power systems. It measures three-phase voltage and three-phase current simultaneously, with an accuracy class of 0.5 for both voltage and current. The device features an LED display and menu buttons, offering intuitive and simple operation. It supports programmable gain settings for voltage and current, making it adaptable to various field requirements. The meter accepts a wide range of auxiliary power supplies (AC/DC 80V~270V or AC220V) and can be easily integrated into SCADA and PLC systems via multiple communication protocols, enabling remote data acquisition and networking.
Working Conditions of the Digital Voltage&Current Combination Meter
- Working temperature: –10°C ~ +55°C
- Storage temperature: –25°C ~ +70°C
- Relative humidity: <93%
- Altitude: ≤ 2500 m
- Auxiliary power range: AC/DC 80V~270V, or AC220V
- Power consumption: <4VA
- Frequency: 45~65 Hz
Why Choose ZHIMING's Digital Voltage&Current Combination Meter?
High Measurement Accuracy
With accuracy class 0.5 for both voltage and current, this meter delivers reliable and precise readings for energy monitoring and power quality analysis. Whether used in substations, industrial panels, or commercial buildings, the 0.5 class accuracy meets most standard metering requirements.
Wide & Flexible Power Supply
The built-in auxiliary power supply accepts AC/DC 80V~270V or AC220V, covering almost all common control voltages. This eliminates the need for external voltage converters and simplifies installation in retrofit projects where power availability is uncertain.
Strong Overload & Safety Protection
The meter withstands 2× rated voltage (1 second) and 10× rated current (5 seconds) without damage. It also features insulation resistance >100MΩ and AC withstand voltage of 2KV, ensuring operator safety and device longevity in harsh electrical environments.
Excellent Electromagnetic Compatibility
Rated at Class 4 for electrostatic discharge (ESD), electrical fast transient burst, and surge (impact), this meter performs reliably in industrial environments with heavy switching noise, lightning-induced transients, or static discharges.
Easy Installation & Smart Communication
Compact outline dimensions, simple wiring, and a small engineering footprint make installation fast and cost-effective. The meter supports networking with SCADA and PLC systems via various communication software, enabling remote monitoring, data logging, and automated control.
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What is the accuracy class of this current combination meter?
The meter has an accuracy class of 0.5 for both voltage and current measurement, as specified in the technical index.
Can this meter be used in a three-phase three-wire system?
Yes, it supports both three-phase four-wire and three-phase three-wire connection modes. You can select the appropriate mode during installation.
What happens if the input current exceeds 5A temporarily?
The meter can handle 10 times the rated current (e.g., 50A for a 5A input) for up to 5 seconds (instantaneous overload). For continuous operation, do not exceed 1.2 times the rated current.
Does the current combination meter require an external power supply?
Yes, it requires an auxiliary power supply. The working range is AC/DC 80V~270V or dedicated AC220V. Power consumption is less than 4VA.
Can I connect this current combination meter to a PLC or SCADA system?
Yes. The performance characteristics state that the meter can complete networking with SCADA and PLC systems via a variety of communication software. (Specific communication protocol – e.g., Modbus – should be confirmed with the product datasheet or manufacturer.)
