E+H Prosonic FDU90 Ultrasonic Level Sensor is designed for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. But also for flow measurement in open channels and measuring weirs. The measurement is unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of sensors. Suited for explosion hazardous areas.

The sensor features measuring ranges of 3m (9.8ft) for liquids and 1.2m (3.9ft) for solids. Accuracy is ±2mm + 0.17% of measured distance. The hermetically welded PVDF sensor construction provides excellent chemical resistance and durability. Integrated heating prevents ice formation in cold environments, and automatic sensor detection simplifies configuration.

Weather resistant and flood-proof with IP68 rating, the FDU90 includes Time-of-Flight correction for accurate measurement under varying conditions. Threaded process connections allow easy installation, and 4-wire HART or PROFIBUS DP communication provides flexible integration with control systems. Reduced build-up formation ensures reliable operation even with adhesive media.