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Oxymax COS61 is an optical dissolved oxygen sensor with long-term stable fluorescence layer.

Dissolved oxygen sensor
Oxymax COS61

Optical oxygen sensor for water, wastewater and utilities

COS61
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Dissolved oxygen sensor Oxymax COS61 ©Endress+Hauser
Dissolved oxygen sensor Oxymax COS61 ©Endress+Hauser

Specs at a glance

  • Measuring range

    0mg/l ... 20mg/l
    0%SAT ... 200%SAT
    0 ... 400hPa

  • Process temperature

    -5°C ... 60°C
    ( 23 - 140°F)

  • Process pressure

    max. 10bar
    (145psi)

Field of application

Oxymax COS61 is a high-performance oxygen sensor that offers fast, accurate and drift-free measurement. It supports your process with low maintenance, high availability and easy handling. The sensor's long-term stable fluorescence layer is exclusively oxygen-selective (interference-free), ensuring consistently reliable measurement.

Oxymax COS61 measures the dissolved oxygen concentration in:

  • Wastewater treatment plants:
    - O2 control in the aeration basin
    - Process water treatment and monitoring

  • Water works:
    - Status monitoring of drinking water (oxygen enrichment, corrosion protection, etc.)
    - Water quality monitoring in rivers, lakes or seas

  • Utilities of all industries:
    - O2 control in the biological treatment
    - Process water treatment and monitoring

  • Fish farming:
    - O2 control for optimum growth conditions

Benefits

  • Minimum maintenance, maximum availability

  • Fast, drift-free measurement for aeration control and process monitoring

  • Long-term stability for increased process safety

  • High-performing in all aeration processes (SBR, Anamox, etc.)

  • Chemical-free: no electrolyte handling

  • Easy measuring point changeover to optical technology compatible with COS31 and COS41

Videos

  • The concentration of oxygen dissolved in a liquid can be measured using the amperometric or optical measuring principles. This video shows what it is about and how these measuring principles work.

Success stories

  • Simple products

  • Easy to select, install and operate

Technical excellence

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  • Standard products

  • Reliable, robust and low-maintenance

Technical excellence

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  • High-end products

  • Highly functional and convenient

Technical excellence

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  • Specialized products

  • Designed for demanding applications

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Variable

FLEX selections Technical excellence Simplicity
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Fundamental selection

Meet your basic measurement needs

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Simplicity
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Lean selection

Handle your core processes easily

Technical excellence
Simplicity
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Extended selection

Optimize your processes with innovative technologies

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Xpert selection

Master your most challenging applications

Technical excellence
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