Tamper Protection and Secure Data Logging
Transaction based energy measurement supports up to 60,000 transaction logs and an integrated Eichlog
with up to 6,000 logs stored in non-volatile memory. These logs can be accessed through the Modbus RTU
in signed Open Charge Metering Format (OCMF) for tamper protection. For physical security, the
AcuDC-320 has a terminal and interface sealing to provide tamper protection in regulated environment.
System Integration
Features built in Modbus RTU over RS485, 2-wire shielded twisted pair, for data query and
configuration for integrated communication with transfer rate from 2400-115200 bps. A Remote HMI with
a 128x64 pixel LCD display for quick and easy access of the readings.
Cable Loss Compensation
Includes built-in functionality to calculate and compensate for voltage drop across charging cables,
ensuring billing accuracy for the actual energy delivered.
Electrical Performance
Supports single channel metering with individual voltage and current input for ease of measurement.
The directly connected voltage measurement channel measures from 60V to 1500VDC at 0.1% accuracy and
direct current from 9A to 1500A through an internal shunt at 0.2% accuracy which ensures reliable
energy, power and charge calculations.
Revenue Grade Accuracy
Bidirectional energy measurement compliant with IEC 62053-41 and EN50470-4 Class 0.5, supporting
legally compliant billing for regulated applications such as DC EV charging stations, renewable energy
measurement such as solar panels, telecommunications infrastructure and DC power distribution systems.
