Technical Specifications
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Measurement Accuracy
±2 mm with additional 0.17% of measured distance
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Working Temperature Range
-40°C to 95°C
(-40°F to 203°F) -
Operating Pressure Range
0.7 to 3 bar absolute
(10 to 43 psi) -
Detection Range Limits
Liquids: 25 m (85 ft),
Solids: 15 m (50 ft) -
Contact Materials
UP (unsaturated polyester)
Silicon/Aluminum with PTFE coating
Typical Applications
The FDU93 ultrasonic sensor delivers reliable, maintenance-free level monitoring for various substances including liquids, viscous materials, and granular solids. It performs equally well for flow measurement applications in open channels and weirs. Measurement consistency is maintained regardless of material properties or ambient conditions, featuring self-cleaning technology to prevent surface contamination. Approved for hazardous locations. Achieves maximum detection distances of 25m (85ft) for liquids and 15m (50ft) for solid materials.
Engineered for non-contact level measurement in storage tanks, processing equipment, material handling systems, and crushers. Ideal for flow monitoring in open channels and weirs. Especially valuable in space-constrained installations with limited overhead clearance.
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Mounting: Threaded process connection
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Operating temperature: -40°C to +95°C (-40°F to +203°F)
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Pressure range: 0.7 to 3 bar (10 to 43 psi)
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Max range capability: 25m (85ft) liquids, 15m (50ft) solids
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Minimum measurement distance: 0.6m (2ft)
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Internationally approved for explosive atmospheres
Key Benefits
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Integrated temperature compensation maintains precision across varying thermal conditions
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Optional remote transmitter installation (300m maximum) for challenging environments
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Self-cleaning transducer surface prevents material adhesion
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Automatic sensor identification with FMU90/FMU95 transmitters enables quick commissioning
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Waterproof and submersible construction (IP68 protection)
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Contactless measurement eliminates mechanical wear
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Worldwide certifications for explosive dust and gas environments
