Endress+Hauser COS51E-AA26TN Sensor for Oil-in-Water Measurement

The Endress+Hauser COS51E-AA26TN is an advanced, field-proven sensor designed for continuous, real-time monitoring of oil content in water. Engineered with high reliability and precision, this compact device is ideal for a wide range of applications including industrial wastewater, produced water treatment, environmental compliance monitoring, and process water control. Its robust construction and advanced measurement technology make it a critical tool for industries aiming to optimize processes and meet strict environmental regulations.

Key Technical Parameters

• Measurement Principle: UV fluorescence, providing high selectivity for hydrocarbons.

• Measurement Range: 0-20 ppm (mg/l), suitable for low-concentration applications.

• Accuracy: Excellent repeatability and low detection limit for reliable trend monitoring.

• Process Connection: Compact, immersion/flow-through version with a 3/4" NPT thread (AA26TN designation).

• Materials: The wetted parts, including the sensor tip, are constructed from titanium (Ti), offering superior corrosion resistance in demanding environments.

• Pressure Rating: Up to 16 bar (232 psi).

• Temperature Range: Operates in process temperatures from 0 to 50°C (32 to 122°F).

• Outputs: Configurable analog and digital outputs (via Memosens protocol) for easy integration into control systems.

• Communication: Features Memosens technology for digital data transmission, predictive maintenance, and enhanced data security.

Primary Advantages and Benefits

1. Unmatched Reliability with Memosens Technology:

The COS51E leverages digital Memosens technology, ensuring error-free data transmission, superior signal integrity, and comprehensive sensor diagnostics. This enables predictive maintenance, reduces downtime, and stores calibration data directly in the sensor for easy replacement.

2. Robust and Maintenance-Friendly Design:

Constructed with a titanium sensing element and a rugged housing, the sensor withstands harsh industrial environments. Its compact form factor and self-cleaning optical surface minimize the need for frequent maintenance.

3. High Sensitivity and Specificity:

The UV fluorescence method is highly sensitive to aromatic hydrocarbons (like oils, fuels, PAHs) and is largely immune to interference from bubbles, suspended solids, or turbidity, ensuring accurate and stable readings.

4. Simplified Integration and Operation:

Easy to install directly into pipelines or tanks, the COS51E integrates seamlessly with Endress+Hauser transmitters and standard control systems. Its user-friendly setup reduces commissioning time and operational complexity.

5. Ideal for Demanding Applications:

The specific model COS51E-AA26TN with titanium construction is perfectly suited for challenging applications such as offshore produced water, refinery effluent, or industrial wastewater where corrosion resistance is paramount.

Conclusion

The Endress+Hauser COS51E-AA26TN oil-in-water sensor sets the standard for reliable, low-maintenance, and accurate hydrocarbon monitoring. By combining robust titanium hardware with future-proof digital Memosens technology, it provides plant operators with a trusted solution for environmental protection, process optimization, and regulatory compliance. For precise, continuous oil-in-water measurement in demanding conditions, the COS51E-AA26TN is an outstanding investment.



Keywords: Endress+Hauser COS51E, oil in water sensor, hydrocarbon monitoring, UV fluorescence sensor, Memosens technology, titanium sensor, wastewater analysis, produced water treatment, environmental compliance, process water monitoring, COS51E-AA26TN specifications.