Endress+Hauser FMU40-NNB2A4 Ultrasonic Level Sensor

Endress+Hauser FMU40-NNB2A4 Ultrasonic Level Sensor is an ultrasonic level measurement device identified by the FMU40-NNB2A4 part number and manufactured by Endress+Hauser. It operates on a 14–36 V DC power supply, aligning with typical industrial power architectures. Ultrasonic level sensing works by emitting a sound pulse toward the target and measuring the time for the echo to return, enabling level determination without the need for direct contact with the material in the vessel. The FMU40-NNB2A4 designation marks the specific configuration within Endress+Hauser’s line of level sensors, allowing engineers to reference the exact model when procuring replacement parts or integrating into a control system. This description focuses on the verifiable facts: manufacturer, product type, model, and electrical requirement, providing a concise basis for evaluating fit in projects that rely on Endress+Hauser instrumentation. The 14–36 V DC supply range helps technicians plan integration with a broad spectrum of industrial control systems and power distribution schemes typically found in manufacturing and processing environments.