The BM00ET serves as the central control and display module within the Relat BM3000 predictive battery monitoring system. Designed for standby power installations — generator sets, solar inverter banks, and UPS battery rooms — it continuously tracks cell voltage, internal resistance, and temperature across up to 508 individual cells, flagging degradation before it causes a failure during a critical power transfer.

Which battery types does the BM3000 system support?

The system is compatible with both vented lead-acid (wet/flooded) and VRLA (valve-regulated lead-acid) battery types. Each cell is monitored by a dedicated satellite sensor module that communicates back to the BM00ET controller over the system bus, allowing mixed-chemistry banks within the same monitored installation.

How does the BM00ET integrate with existing site infrastructure?

The controller provides one LAN port and two RS485 serial interfaces, all running MODBUS RTU protocol. This allows direct integration with facility SCADA, building management systems, and generator controllers. Six months of historical data — voltage trends, temperature logs, resistance drift — are stored locally on the controller and accessible for compliance reporting and maintenance scheduling.