技術的特徴と性能
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Extended Measuring Range: The FDU91 provides a reliable measuring range of up to 10 m in liquids and 5 m in bulk solids. This makes it ideal for medium-sized silos, wastewater basins, and large-scale industrial sumps.
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Time-of-Flight Precision: By emitting ultrasonic pulses and measuring the return time, the sensor determines the distance to the product surface. An integrated temperature sensor provides real-time compensation for the speed of sound, ensuring accuracy even in outdoor installations with fluctuating temperatures.
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Extreme Chemical Resistance: The sensor is hermetically welded and made of PVDF, making it highly resistant to aggressive chemicals, acidic vapors, and corrosive industrial environments.
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Self-Cleaning Membrane: The ultrasonic transducer vibrates during operation, which creates a self-cleaning effect that prevents the accumulation of dust, moisture, or light build-up on the sensor face.
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Robust IP 68 Protection: The FDU91 is completely flood-proof and weather-resistant. This durability allows for reliable performance in wastewater treatment plants, outdoor flumes, and heavy industrial sites.
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Seamless Integration: The sensor is automatically detected by the Prosonic FMU90 or FMU95 transmitters, allowing for “plug-and-play” setup and simplified commissioning.
技術仕様マトリックス
| 特徴 | 技術詳細 |
| 測定原理 | 超音波（非接触） |
| 最大使用範囲（液体） | 10メートル（33フィート） |
| 最大範囲（固形物） | 5メートル（16フィート） |
| ブロック距離 | 0.3 m (1 ft) |
| プロセス温度 | -40～+80℃（-40～+176°F） |
| プロセス圧力 | 0.7 to 4 bar (10 to 58 psi) |
| センサー材料 | PVDF (Hermetically welded) |
| 保護の程度 | IP 68 |
主な用途
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Medium-Sized Liquid Storage: Monitoring levels in chemical tanks, oil-water separators, and wastewater wet wells.
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Open Channel Flow: Measuring high-volume flow in large flumes and weirs for municipal water management.
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Bulk Solid Monitoring: Level detection for sand, plastic pellets, or grain in medium-height silos or on conveyor discharge points.
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Flood-Prone Areas: Due to its IP 68 rating, it is perfect for level monitoring in storm-water overflow basins.
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Hazardous Environments: Fully certified for use in areas where explosive gas or dust atmospheres may be present.
