BLOC12 – Counting and Monitoring Overfill Sensors

The BLOC12 is an electronic diagnostic unit developed to increase the reliability of overfill prevention systems in bottom loading operations. The equipment monitors, counts, and validates up to 12 five-wire optical overfill sensors, according to EN 13922. The system can be installed in parallel with the existing overfill monitor at the customer's base, adding diagnostic capabilities without replacing or interfering with the equipment responsible for permitting loading. This allows for simple modernization of existing installations, with less impact on infrastructure and operational processes. Through the sensor diagnostic wire, the BLOC12 verifies the number of active sensors and allows comparison to the expected truck configuration. This analysis helps identify faulty sensors, incorrect installations, incompatibilities, and possible bypass attempts. Its local interface displays the number of detected sensors and the system status via a display and indicator lights. The data can also be integrated into computers, PLCs, or supervisory systems via Modbus RTU protocol using RS485, in addition to the possibility of communication with ATC Scan through the BLE antenna.