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Digital oxygen sensor
Oxymax COS61D

Digital oxygen sensor
Oxymax COS61D ©Endress+Hauser
Digital oxygen sensor
Oxymax COS61D ©Endress+Hauser
Digital oxygen sensor
Oxymax COS61D ©Endress+Hauser

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.

Memosens optical oxygen sensor for water, wastewater and utilities

Oxymax COS61D is a high-performance, digital 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. Thanks to Memosens digital technology, the Oxymax COS61D combines maximum process and data integrity, and facilitates simple lab calibration.

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    • Measurement range

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

    • Process temperature

      -5 to 60 °C
      (20 to 140 °F)

    • Process pressure

      Max. 10 bar abs
      (Max. 145 psi)

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  • Voordelen

    • Minimum maintenance, maximum availability

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

    • Long-term stability for increased process safety

    • Outstanding performance in all aeration processes (SBR, Anamox, etc.)

    • Chemical-free...

  • Toepassingsgebied

    Oxymax COS61D 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...

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Details

  • Meetprincipe

    Optical oxygen measurement

  • Application

    Aeration tank, river monitoring, water treatment, fish farming

  • Characteristic

    Digital, optical measurement of dissolved oxygen based on fluorescence quenching
    Measurement possible in still water

  • Measurement range

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

  • Measuring principle

    Oxygen-sensitive molecules (marker) are integrated in an optical active layer (fluorescence layer). The fluorescence layer surface is in contact with the medium. The sensor optics are directed at the back of the fluorescence layer. The sensor optics transmit green light pulses to the fluorescence layer. The markers respond (fluoresce) with red light pulses. The duration and intensity of the response signals depend directly on the oxygen contents or partial pressure.

  • Design

    Calibration data saved in sensor
    High degree of EMC protection

  • Material

    Sensor shaft: stainless steel 1.4435
    Membrane cap: POM

  • Dimension

    Diameter: 40 mm (1.57 inch)
    Shaft length: 186 mm (7.32 inch)

  • Process temperature

    -5 to 60 °C
    (20 to 140 °F)

  • Process pressure

    Max. 10 bar abs
    (Max. 145 psi)

  • Temperature sensor

    NTC 30K

  • Connection

    Process connection: G1, NPT 3/4"
    Cable connection: fixed cable or TOP68 plug-in-head

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