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Oxymax COS61D is an optical dissolved oxygen sensor with long-term stable fluorescence layer.

Digital oxygen sensor
Oxymax COS61D

Memosens optical oxygen sensor for water, wastewater and utilities

COS61D
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  • Measuring principle

    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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