Product parameters
1. Product Introduction
The EM619025 is a highly advanced, bi-directional DC energy meter designed for the next generation of power infrastructure. Engineered to handle extreme electrical loads, it offers flexible current options of 200A, 400A, or 650A and measures voltages from 100V to 1000V DC. Built for seamless integration, this smart DC meter features both RS485 and Ethernet communication, supporting Modbus, HTTP-JSON, and OCMF protocols. Fully compliant with rigorous MID and PTB Eichrecht standards, the EM619025 ensures legally binding, transparent billing, making it the ultimate measuring solution for DC EV fast chargers, solar PV, and battery energy storage systems (BESS).
2. Core Features & Technical Advantages
Wide Measurement Range (Bi-directional):
Available in 200A, 400A, and 650A variants, it measures wide voltage ranges from 100V to 1000V DC. Its true bi-directional metering capability precisely captures both charging and discharging data, which is essential for energy storage and solar grid integration.
Advanced IoT Connectivity & Protocols:
Equipped with dual communication interfaces: RS485 and Ethernet. It supports standard Modbus, as well as modern HTTP-JSON and OCMF protocols, enabling fast, reliable, and secure data transmission directly to cloud platforms and Energy Management Systems (EMS).
Comprehensive Alarm & Safety System:
The EM619025 includes intelligent fault detection. It triggers real-time alarms for over-temperature, over-current, and magnetic tampering (over-magnetic). It features self-diagnostic and safety protection functions. It also has line loss energy compensation.
PTB Eichrecht & MID Compliant:
For commercial billing applications, compliance is non-negotiable. This DC energy meter meets the stringent requirements of the German PTB Eichrecht and European MID testing standards, guaranteeing accuracy, data security, and legally transparent invoicing for end-users.
3. Technical parameters:
| Product Mode | EM619025 | EM619026 | EM619027 |
| Current | 200A | 400A | 650A |
| Max Current | 2A | 4A | 6A |
| Max Measure Current | 160mA | 320mA | 480mA |
| Rated Voltage | 100~1000V | ||
| Voltage Input | 24~36V DC | ||
| Communication methods | RS485, Ethernet | ||
| Communication Protocol | RS485 is compatible with Modbus RTU and DLT/645-2007. Ethernet uses HTTP-JSON and HTTP-OCMF protocols. | ||
| Accuracy | ±1%(current/voltage/power), Class 1(energy) | ||
4. DC Metering Applications
DC EV Charging Stations (High-Power Fast Chargers): Ensures accurate and legal billing for EV charging networks via OCMF protocols.
Solar PV Systems: Monitors DC generation from solar arrays before inversion, maximizing yield efficiency.
Battery Energy Storage Systems (BESS): Tracks bi-directional power flow (charge/discharge cycles) to optimize battery life and grid balancing.
Data Centers: Provides precise energy monitoring for DC microgrids and server rack power management.
Telecom Base Stations: Secures reliable power measurement for critical telecommunication infrastructure.
