Optical DO (RDO) Spec Sheet
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Optical DO (RDO) Spec Sheet
Product catalog summary
Overview: The In-Situ® RDO® optical dissolved oxygen sensor is designed for long-term and ambient water quality monitoring, offering advantages such as rugged design, automatic setup, and fast response. It is suitable for various applications including vertical profiling, dynamically changing conditions, and low-flow groundwater sampling.
Key Features:
- Rugged Design: The sensor is wiper-free and abrasion-resistant, suitable for demanding environments with high sediment loads and rapid flow rates.
- Automatic Setup: Pre-loaded calibration coefficients in the sensor cap simplify setup and reduce programming errors.
- Precision and Accuracy: Operates with low drift, excels in hypoxic conditions, and maintains a stable response.
- Cost Efficiency: Reduces maintenance and site visits, with calibration lasting several months under minimal fouling conditions.
- Rugged Performance: Resistant to sulfide poisoning, cross-sensitivity, thermal shocking, and photobleaching.
Technical Specifications:
- Accuracy: ±0.1 mg/L from 0-8 mg/L; ±0.2 mg/L from 8-20 mg/L.
- Operating Range: 0-20 mg/L or 0-450% saturation.
- Temperature Range: 0 to 50°C (32 to 122°F).
- Pressure Rating: 300 psi (210 m; 692 ft).
- Salinity Range: Up to 42 ppt.
- Response Time: T90 = 30 seconds; T95 = 37 seconds.
- Material: Delrin® with oxygen-specific lumiphore embedded in a gas-permeable matrix.
- Sensor Foil Life: 1 year or 1 million measurements.
Applications: The sensor is applicable for environmental and estuary monitoring, spot checking, ambient monitoring, and long-term deployments.
Configurations: The RDO sensor can be used with TROLL 9500 in sub 2-inch or sub 4-inch configurations, with specific port assignments for different measurements.
Technology: Utilizes dynamic luminescence quenching to measure dissolved oxygen, providing stable and accurate readings with low maintenance requirements.
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