Prosonic S FDU92
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 | +/- 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 ... 4 bar abs (10 psi ... 58 psi) |
| Main wetted parts | PVDF (fully welded IP68 / NEMA 6P) |
| Process connection | G / NPT 1" |
| Blocking distance | 0.4 m (1.3 ft) |
| Max. measurement distance | Liquids: 20 m (65 ft), Solids: 10 m (33 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 ... 4 bar abs (10 psi ... 58 psi) |
| Main wetted parts | PVDF (fully welded IP68 / NEMA 6P) |
| Process connection | G / NPT 1" |
| Blocking distance | 0.4 m (1.3 ft) |
| Max. measurement distance | Liquids: 20 m (65 ft), Solids: 10 m (33 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 |
Liquids
| Measuring Principle | Ultrasonic |
| Product headline | Ultrasonic sensor for level and open channel flow measurement. For applications requiring separate level / open channel flow measurement system. |
| Max. measurement error | accuracy: distance measurement: +/- 2mm + 0.17% |
| Measuring range | Up to 20m / 65ft |
| Max. process pressure | 0.4 bar...4 bar (10 psi...58 psi) |
| Medium temperature range | -40...95°C (-40...203°F) |
| Degree of protection | IP68 |
| Display/Operation | Transmitter FMU90 |
| Outputs | Transmitter: 4...20mA HART PROFIBUS DP |
| Inputs | Transmitter FMU90 |
| Digital communication | HART, PROFIBUS DP |
| Hazardous area approvals | ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, UK Ex |
The FDU92 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 measuring weirs. Measured values are unaffected by dielectric constant, density or humidity, and the sensor self-cleaning function eliminates the influence of medium adhesion on measurement. Suitable for explosive hazardous areas; maximum measuring range: liquids 20m (65ft), solids 10m (33ft).
Advantages
Built-in temperature sensor for time-of-flight calibration; precise measurement even with temperature changes
Hermetically welded PVDF sensor for the highest level of corrosion-resistant measurement applications
Suitable for harsh climatic conditions; sensor and transmitter can be installed separately with a maximum distance of 300m
Sensor self-cleaning function reduces adhesion formation
Built-in automatic sensor detection for convenient commissioning with the FMU90/FMU95 level transmitter
Degree of protection IP68
Dust-Ex and gas-Ex approvals (ATEX, FM, CSA)
Areas of application
Suitable for continuous, non-contact level measurement of liquids, pastes, sludge, powders and coarse bulk solids; flow measurement in open channels and measuring weirs. Maximum measuring range: liquids 20m, solids 10m; suitable for explosive hazardous areas; other measuring ranges: FDU91/91F: liquids 10m, solids 5m; FDU93: liquids 25m, solids 15m; FDU95: solids 45m; FDU96: solids 70m
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Technical documentation
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Source:Endress+Hauserwebsite public information
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