Dissolved oxygen sensor Oxymax COS61 Brand New Original Endress + Hauser

Oxymax COS61 — Introduction

The Oxymax COS61 is a high-performance optical dissolved oxygen (DO) sensor manufactured by Endress+Hauser. It is part of the Liquiline/Cos product family and is designed for precise, low-maintenance measurement of dissolved oxygen in water, wastewater, environmental monitoring, and industrial processes.

Unlike traditional electrochemical (amperometric) DO sensors, the COS61 uses luminescence (optical) measurement technology, which offers superior stability, minimal drift, and eliminates electrolyte or membrane handling.

Key Features

1. Optical (Luminescence) Technology

• Measures DO using a luminescent cap
• No polarization time
• Low drift and long calibration intervals

2. Robust & Low Maintenance

• No electrolyte solutions
• Long sensor cap lifetime
• Rugged stainless-steel or plastic body options

3. High Accuracy & Reliability

• Fast response
• Resistant to fouling and flow variations
• Suitable for both low-oxygen and high-oxygen ranges

4. Digital Memosens Technology

• Non-contact digital data transmission
• 100% moisture-proof plug-and-play connection
• Stores calibration and sensor health diagnostics

5. Wide Application Compatibility

Works seamlessly with Endress+Hauser Liquiline transmitters (e.g., CM44x, CM42, CM82).

Typical Applications

• Wastewater treatment
• Aeration basin control
• Biological treatment optimization
• Drinking & process water
• Oxygen monitoring in filtration or storage
• Aquaculture
• Continuous DO monitoring for fish health
• Environmental monitoring
• Lakes, rivers, and groundwater DO analysis
• Industrial processes
• Food & beverage
• Chemical production
• Biotechnology

Technical Highlights (At a Glance)

Why Choose the Oxymax COS61?

• No calibration drift
• Extremely low upkeep
• Excellent reliability in harsh water environments
• Quick installation with Memosens plug-in design
• Ideal for long-term continuous monitoring