How to Choose the Right Voltage Transmitter for Industrial Applications in 2026
In an era of fluctuating energy costs and evolving industrial demands, selecting a high-performance voltage transmitter has become critical for...
AC Three Phase CLASS 0.2 Accuracy Multifunction Energy Meter
Modern power systems require more than simple metering. Industrial facilities, smart buildings, substations, and energy-intensive AI infrastructure need one device capable of measuring, recording, diagnosing, and communicating in real time.
Instrava Curated Instruments Multifunction Energy Meter is an advanced AC Three Phase intelligent meter designed for precise energy measurement, power quality monitoring, demand management, and remote data communication.
With CLASS 0.2 accuracy, harmonic analysis up to the 63rd order, multi-tariff billing, built-in web server, and extensive data logging, this meter provides everything needed for reliable energy management and power system visibility.
Key Benefits
- AC Three Phase multifunction energy measurement
- High precision with 0.2S / 0.5S metering accuracy
- Harmonic analysis up to the 63rd harmonic
- Built-in web server and remote monitoring
- Multi-tariff billing and demand management
- Supports LV and MV voltage systems
Applications
Smart Buildings | Industrial Plants | Utilities | Substations | Data Centers | Renewable Energy Systems
Power Monitoring & Control Description
Multifunction Energy Meter Core Advantages
High-Accuracy AC Three Phase Multifunction Energy Meter
This Multifunction Energy Meter delivers highly accurate energy measurement for both low-voltage and medium-voltage systems.
- Active Energy Accuracy: Class 0.2S / 0.5S
- Reactive Energy: Class 2
- Suitable for LV and MV systems
- Supports direct connection up to 600VAC
For medium-voltage systems, the meter supports PT connection with programmable PT ratio, making it adaptable to a wide range of grid configurations.
Advanced Power Quality Monitoring with Harmonic Analysis
Unlike ordinary energy meters, this AC Three Phase Multifunction Energy Meter includes advanced power quality functions:
- 31st / 63rd harmonic analysis
- Voltage deviation and frequency deviation
- Voltage and current unbalance
- Current K factor and crest factor
- Flicker and fluctuation monitoring
- Voltage sag, swell, interruption, and transient recording
These functions make it ideal for identifying hidden electrical issues before they lead to equipment failure or energy waste.
Intelligent Demand Management and Multi-Tariff Billing
The meter supports programmable demand calculation and sophisticated tariff management:
- Fixed block and rolling block demand modes
- Programmable demand cycles: 5 / 10 / 15 / 30 / 60 min
- Monthly maximum demand statistics
- 31-day and 12-month historical data storage
- Up to 4 tariff rates and 8 daily time periods
This allows users to optimize electricity consumption and reduce utility costs.
Multifunction Energy Meter Technical Highlights
Embedded Web Server and Remote Monitoring
This Multifunction Energy Meter features a built-in HTTP web server for remote access and system management.
Key capabilities include:
- Real-time data view
- Cloud service logs
- Remote configuration and debugging
- Remote firmware and configuration updates
- NTP time synchronization
The integrated web platform reduces the need for additional software and simplifies energy monitoring across multiple locations.
Powerful Data Collection and Communication
The meter supports large-scale data acquisition and transmission:
- Supports both Modbus RTU and Modbus TCP devices
- Up to 40,000 data points
- Up to 4 RS485 ports
- Each RS485 port supports up to 60 slave devices
- Dual Ethernet ports and optional GPRS communication
- HTTP(s), XML, and JSON forwarding formats
This makes the meter highly suitable for integration into SCADA, EMS, BMS, and cloud-based monitoring platforms.
Built-In Alarm and Fault Recording
The Multifunction Energy Meter includes a powerful alarm system:
- Over/under limit alarm
- Real-time alarm transmission
- Relay output for fault conditions
- Event recording and waveform storage
- SMS alarm notification
The device can automatically detect abnormal conditions such as:
- High THD
- Low power factor
- Voltage imbalance
- Frequency deviations
This helps users quickly respond to faults and improve system reliability.
Compact Design for Panel Installation
The meter is designed for convenient panel mounting with minimal space requirements:
- Panel size: 96 × 96 mm
- Cut-out: 90 × 90 mm
- Ultra-thin design
- Expandable modular structure
Its pluggable option modules support future upgrades without replacing the entire device.
Power Monitoring & Control Parameter
Specification | Description | ||||
| Rated Working Parameters | Rated Power Supply | AC85-265V~50/60Hz or DC100-300V | |||
| Power Consumption | <10VA | ||||
| Rated Input Current | 5A(Compatible 1A) | ||||
| Rated Input Voltage | 3×57.7/100V、3×220/380V 40Hz~70Hz | ||||
| DI Input [External Power Supply] | External provide power supply 220Vac±35%,220Vdc±35% | ||||
| DI Input [Internal Power Supply] | PMAC770H internal power supply,30VDC | ||||
| Relay Output | Capacity:250Vac/5A,30Vdc/5A | ||||
Specification | Range | Accuracy | |||
| Parameter Accuracy | Direct input Voltage | Phase-Phase 10V~400V/Phase-N 10V~690V | 0.1%/0.2% | ||
| Primary Voltage | Max.650kV | — | |||
| Direct input Current | 5mA~6.5A | 0.1%/0.2% | |||
| Primary Current | Max.50000A | — | |||
| Frequency | 35Hz-65Hz | 0.1% | |||
| EMC | Working Environment | Temperature:-25℃ -+70℃,Humidity:5%～95%,no condensation | |||
| Insulation properties | Power Frequency withstand Voltage 4000VAC,Insulation Resistance≥100MQ | ||||
| IP Level | Front Case:IP54 | ||||
ltem | Reference Standard | Level | |||
Electromagnetic compatibility | Electrostatic discharge immunity | GB/T176262-2006(IEC61000-4-2:2001) | Level 4 | ||
| Radio frequency electromagnetic radiation immunity | GB/T17626.3-2006(IEC61000-4-3:2002) | Level 4 | |||
| Fast transient burst immunity | GB/T17626.4-2008(IEC61000-4-4:2006) | Level 4 | |||
| Surge immunity | GB/T17626.5-2008(IEC61000-4-5:2005 | Level 4 | |||
| Immunity to Conducted Disturbances Induced by RF Fields | GB/T17626.6-2008(IEC61000-4-6:2006) | Level 3 | |||
| Electromagnetic Emission Limits | GB 9254-2008(CISPR22:2006) | Class B | |||
Instrava OEM/ODM
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.
What is a Multifunction Energy Meter?
A Multifunction Energy Meter is an intelligent device that measures multiple electrical parameters such as voltage, current, power, energy, harmonics, and demand in a single instrument.
Why is Class 0.2 accuracy important?
Class 0.2 accuracy provides highly precise energy measurement with very low error. It is ideal for applications requiring accurate billing, cost allocation, and high-quality power monitoring.
Can this Multifunction Energy Meter monitor harmonics?
Yes. This meter supports harmonic analysis up to the 31st or 63rd harmonic, including THD, current K factor, and voltage imbalance.
Is this meter suitable for medium-voltage systems?
Yes. For medium-voltage applications, the meter can connect through PTs, and the PT ratio can be programmed to match the system.
Can this meter be integrated into SCADA or cloud platforms?
Yes. It supports Modbus RTU, Modbus TCP, Ethernet, GPRS, HTTP, XML, and JSON, making it easy to integrate into SCADA, EMS, cloud, and energy management systems.
What is the advantage of the built-in web server?
The embedded web server allows users to remotely monitor, configure, and troubleshoot the device through a browser without requiring additional software.
From Experimentation to Execution: Why April 2026 Marks the Turning Point for Industrial Instrumentation
April 2026 is not just another milestone—it marks the moment when industrial instrumentation shifts from experimentation to execution.For years, the...
Why Choose Instrava
Built on Consistency, Not Claims
Focused on Industrial Applications
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Strict Product Selection Criteria
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
Reliable Supply & Quality Consistency
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Practical, Experience-Based Support
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.
