Memosens COS22D – Optical Dissolved Oxygen Sensor
The Endress+Hauser Memosens COS22D uses luminescence quenching technology to measure dissolved oxygen without consuming oxygen. This enables stable, drift-free measurement with minimal maintenance.
Key Features
- Measuring principle: Optical (luminescence quenching)
- DO range: 0 to 20 mg/l (0 to 200% saturation)
- Accuracy: ±0.1 mg/l
- No oxygen consumption (no flow dependency)
- Memosens digital technology
- Process temperature: 0 to +50 °C
- Process pressure: up to 10 bar
- Minimal maintenance (no electrolyte replacement)
- Compatible with Liquiline CM4xx transmitters
Applications
Wastewater treatment (aeration control), drinking water, aquaculture, fermentation, food and beverage, pharmaceutical, environmental monitoring.
Technical Specifications
| Parameter | Value |
|---|---|
| DO range | 0–20 mg/l (0–200% saturation) |
| Accuracy | ±0.1 mg/l |
| Measuring principle | Optical (luminescence quenching) |
| Process temperature | 0 to +50 °C |
| Process pressure | Up to 10 bar |
| Technology | Memosens |




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