Eaton's Direct Current energy meter

Eaton’s Direct Current (DC) energy meter is suitable for telecommunications and infrastructure operators who monitor and bill co-located tenants for DC energy and power consumed.

The meter features a colour LCD front panel interface and is designed for power systems operating at 24 V and 48 V DC. It measures cumulative kWh, minimum and maximum power, and other parameters of up to eight independent circuits. It operates stand alone and can work with any DC power system. The company also has available a range of special non-contact DC current sensors designed for cables and bus bars that can measure current from tens to thousands of amps. The sensors are powered from the meter to simplify installation and deployment.

Communication with the meter is via several physical interfaces, including ethernet, RS232 and USB. A built-in web server also allows users to easily access the data and to make system configuration changes. User’s SNMP-based monitoring systems can also access the data. A USB port allows local access for management and configuration. Security is handled via several login, front-panel and authentication options, including remote radius user management. Alarms can be established to alert the owner if sensors fail or power circuit errors occur. The meter has a number of spare I/O ports that can be used to manage or control site parameters like temperature, door alarms or intrusion detectors. The power to drive the meter comes from dual 24/48DC sources to ensure maximum system reliability.