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Memosens COS51E: digital, amperometric oxygen sensor

Digital oxygen sensor
Memosens COS51E

Memosens 2.0 amperometric oxygen sensor for the wastewater industry and utilities

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  • Measuring principle

    Amperometric oxygen measurement

  • Application

    Typical applications are:
    - Wastewater treatment plants: oxygen control in aeration basin, process water treatment and monitoring
    - Water plants: status monitoring of drinking water, water quality monitoring in rivers, lakes or seas
    - Utilities of all industries: Oxygen control in biological treatment, process water treatment and monitoring.

  • Characteristic

    Digital amperometric 3-electrode longterm-stable sensor to measure dissolved oxygen

  • Measurement range

    0.01 to 100 mg/l
    0.00 to 1000 %SAT
    0 to 2000 hPa

  • Measuring principle

    Measuring principle

  • Design


  • Material

    Sensor shaft: POM
    Membrane cap: POM
    Working electrode: Gold
    Counter and reference electrode: silver/silver halide
    Membrane: ETFE (COS51-TN), FEP (COS51-TF)

  • Dimension

    Diameter: 40mm (1.57 inch)
    Shaft length: 146 mm (5.74 inch)

  • Process temperature

    -5 to 60 °C
    (20 to 140 °F)

  • Process pressure

    Max. 5 bar abs
    (Max. 72.5 psi abs)

  • Temperature sensor

    NTC 30k

  • Ex certification

    With ATEX, IECEx, CSA C/US, NEPSI, JapanEx and INMETRO approval for use in Zone 0, Zone 1 and Zone 2 hazardous areas. With CSA
    C/US approval also in Class I Division 1 hazardous areas in the
    Gas Ex area. Additionally suitable for Class I Division 2.

  • Connection

    Inductive, contactless connection head with Memosens 2.0 technology

  • Ingres protection

    IP 68