Prosonic S FDU93
Technical Data
CompareContinuous / Liquids
| Measuring Principle | Ultrasonic |
| Characteristic / Application | Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300 m in-between sensor and transmitter |
| Supply / Communication | 4-wire (HART, PROFIBUS DP) |
| Accuracy | +/- 2 mm + 0.17% of measured distance |
| Ambient temperature | -40 °C ... 95 °C (-40 °F ... 203 °F) |
| Process temperature | -40 °C ... 95 °C (-40 °F ... 203 °F) |
| Process pressure / max. overpressure limit | 0.7 bar ... 3 bar abs (10 psi ... 43 psi) |
| Main wetted parts | UP (unsaturated polyester) |
| Process connection | G / NPT 1" |
| Blocking distance | 0.6 m (2 ft) |
| Max. measurement distance | Liquids: 25 m (85 ft), Solids: 15 m (50 ft) |
| Communication | Transmitter: 4...20 mA HART PROFIBUS DP |
| Certificates / Approvals | ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, UK Ex |
| Options | Second 4...20 mA output |
| Components | Transmitter: FMU90, FMU95 |
| Application limits | For tank farms scanner: FMU95 |
Continuous / Solids
| Measuring Principle | Ultrasonic |
| Characteristic / Application | Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300m in-between sensor and transmitter |
| Supply / Communication | 4-wire (HART, PROFIBUS DP) |
| Accuracy | +/- 2mm + 0.17% of measured distance |
| Ambient temperature | -40 °C ... 95 °C (-40 °F ... 203 °F) |
| Process temperature | -40 °C ... 95 °C (-40 °F ... 203 °F) |
| Process pressure / max. overpressure limit | 0.7 bar ... 3 bar abs (10 psi ... 43 psi) |
| Main wetted parts | UP (unsaturated polyester) |
| Process connection | G / NPT 1" |
| Blocking distance | 0.6 m (2 ft) |
| Max. measurement distance | Liquids: 25 m (85 ft), Solids: 15 m (50 ft) |
| Communication | Transmitter: 4 ... 20 mA HART PROFIBUS DP |
| Certificates / Approvals | ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, UK Ex |
| Options | Second 4...20mA output |
| Components | Transmitter: FMU90 |
The FDU93 ultrasonic sensor is suitable for continuous, non-contact level measurement of liquids, pastes, sludge, powders and coarse bulk solids, is maintenance-free, and can also be used for flow measurement in open channels and weirs. The measured values are unaffected by dielectric constant, density or humidity, and the self-cleaning function of the sensor eliminates the influence of medium adhesion on the measurement. Suitable for hazardous areas; maximum measuring range: liquids 25 m (85 ft), solids 15 m (50 ft).
Benefits
Integrated temperature sensor for time-of-flight correction. Precise measurement even when the temperature changes
Suitable for use in harsh climatic conditions; sensor and transmitter can be installed separately up to 300 m apart
Sensor self-cleaning function reduces adhesion formation
Integrated automatic sensor detection for convenient commissioning with the FMU90 / FMU95 level transmitter
Degree of protection IP68
Non-contact measurement minimizes service requirements
Dust-Ex and gas-Ex approval (ATEX, FM, CSA)
Applications
Suitable for continuous, non-contact level measurement of liquids, pastes, sludge, powders and coarse bulk solids; flow measurement in open channels and weirs. Maximum measuring range: liquids 25 m, solids 15 m; suitable for hazardous areas; other measuring ranges: FDU91/91F: liquids 10 m, solids 5 m; FDU92: liquids 20 m, solids 10 m; FDU95: solids 45 m; FDU96: solids 70 m
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Technical documentation
Technical data
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Measurement principle video
Source: Endress+Hauserpublic information from the website
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Ultrasonic Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Ultrasonic.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Ultrasonic for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Ultrasonic Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Ultrasonic.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Ultrasonic for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Ultrasonic Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Ultrasonic.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Ultrasonic for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Ultrasonic Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Ultrasonic.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Ultrasonic for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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Endress+Hauser