Carlo Gavazzi has announced a new DCM1 Energy Meter with Ethernet, specifically aimed at the emerging and growing dc metering requirements in fast chargers for electric vehicles (EVs).
Today’s EV charging applications are mostly based on fast, ultra-fast, and hyper-fast chargers. To this end, Carlo Gavazzi continues to develop innovative and flexible solutions to meet the needs of this growing market.
The new DCM1 Series builds on the foundation laid with the DCT1 Series Energy Transducer, by introducing a remote display and an Ethernet port. The remote display can be installed in a part of the charger that is isolated from the high voltage, allowing safe and easy viewing of the measured variables.
Much like the DCT1 Series, the DCM1 Series also has a resolution of 0.1 Wh, which complies with CTEP requirements for charger certification in the USA. It also complies with European requirements.
The DCM1 Series can show information about the specific charging session, while receiving and processing start/stop session commands. Equipped with a built-in Ethernet port, energy measurement information can be transmitted to the charger using the Modbus RTU or Modbus TCP protocols.
The main technical features include:
- Remote display solution: Includes a high-current transducer with dual-temperature measurement and alarm integrated dc voltage measurement, self-powered by the display unit to which it communicates via a supplied cable
- Display: Featurese a graphical visualization and quick setup
- Multi-protocols: The RS485 Modbus RTU or Ethernet Modbus TCP are available to adapt to different charger controllers
- Wide measurement range: From 150 to 1,000 Vdc, 300 A or 600 A max current
- Compactness: Offers 90 x 115 x 60-mm transducer housing + 3-DIN display housing
- Flexibility: Transducer is mountable, with both busbar and cable lug, in different orientations
- Fast serial data refresh time: A 0.1-Wh resolution class B kWh EN50470-4, also suitable for load emergency disconnection, 200 ms communication refresh time
- Bi-directional kWh meter (imported/exported): Ready for vehicle-to-grid applications (distributed storage by car batteries)
- High accuracy: Calibration is also based on internal temperature sensors
- Certifications and approvals: CE, cURus MID, LNE, Eichrecht certified charging session management and OCMF file generation
With its combination of high accuracy and resolution, the DCM1 Series dc energy meter with Ethernet is designed to provide an accurate monitoring system for certified fiscal billing in EV charging stations and battery energy storage systems — while providing power analysis capabilities to dc distribution systems in energy efficiency applications.
Filed Under: Charging, Technology News