Endress+Hauser Prosonic Ultrasonic Level Transmitters
Provide non-contact level and open channel flow measurement for liquids and bulk solids. Based on time-of-flight ultrasonic technology, these instruments are suited for water and wastewater, storage tanks, silos, and utility applications. The portfolio includes compact all-in-one devices and modular sensor systems with remote transmitters for multi-point installations.
Product Overview
The Prosonic portfolio includes:
• Prosonic FDU90 / FDU91 / FDU92 / FDU93 / FDU95 – Ultrasonic sensors for connection to FMU9x transmitters
• Prosonic FDU91F – Hygienic ultrasonic sensor with stainless steel design
• Prosonic FMU30 / FMU40 / FMU41 / FMU42 / FMU44 – Compact ultrasonic transmitters for liquid and solid level measurement
• Prosonic FMU95 – Multi-channel transmitter for up to 10 ultrasonic sensors
These devices support level measurement in tanks, basins, channels, and silos with reliable non-contact sensing.
Key Technical Features
• Time-of-flight ultrasonic measuring principle
• Non-contact level measurement for liquids and solids
• Open channel flow capability
• Measuring ranges up to 45 m
• Compact all-in-one units and modular sensor/transmitter systems
• IP68 sensor designs for harsh environments
• Hygienic stainless steel version available
• Multi-sensor capability with FMU95 transmitter
Technical Specifications
Accuracy:
• Sensors: ±2 mm + 0.17% of measured distance
• Compact transmitters: ±2 to ±4 mm or ±0.2% of set measuring range
Process Temperature Range:
• Standard: –40 °C to +80 °C
• Extended hygienic version: up to +105 °C (short-term up to +135 °C)
• High-temperature sensor option: up to +150 °C
Process Pressure Range:
• Typically 0.7 to 3–4 bar absolute depending on model
Maximum Measurement Distance:
• Compact devices: up to 2 m, 3.5 m, 5 m, 8 m, 10 m or 20 m
• Modular sensors: up to 45 m
• Solids measurement: up to 15 m depending on sensor
Wetted Materials:
• PVDF
• PP / EPDM
• Unsaturated polyester (UP)
• 316L stainless steel (hygienic version)
Standards & Compliance
• Industrial EMC compliance
• IP68 / NEMA 6P sensor housings
• Suitable for wastewater and outdoor installations
• Hygienic version for food and sanitary processes
Applications
• Water and wastewater basins
• Pump stations and wet wells
• Storage tanks for liquids
• Bulk solids silos
• Open channel flow measurement in flumes and weirs
• Utility and general industrial level monitoring
Integration & System Compatibility
Prosonic transmitters integrate with PLC and SCADA systems via standard analog and digital outputs. The FMU95 supports connection of up to 10 ultrasonic sensors, enabling centralized monitoring of multiple measurement points from a single field or panel-mounted transmitter.
Why Ultrasonic Level Measurement?
Ultrasonic technology provides reliable non-contact measurement without mechanical parts. It is suitable for corrosive, abrasive, or dirty media and eliminates sensor contact with the product. Modular systems allow flexible installation in simple or multi-point level monitoring applications.
TSB Local Support – Jordan
TSB provides complete project support including application review, correct sensor selection, installation, commissioning, calibration, verification, and validation reporting for ultrasonic level systems in Jordan. We support water utilities, industrial facilities, and EPC contractors with proper specification, system integration, and documented performance validation to ensure reliable long-term operation.
Contact TSB Jordan for technical consultation, supply, installation, and full lifecycle support for Endress+Hauser Prosonic ultrasonic level transmitters.
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