Dissolved oxygen sensor
Oxymax COS41

Dissolved oxygen sensor
Oxymax COS41 ©Endress+Hauser
Dissolved oxygen sensor
Oxymax COS41 ©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.

Amperometric oxygen sensor for water, wastewater and utilities

Oxymax COS41 is a reliable and accurate oxygen sensor for all kinds of water & wastewater applications. Designed for reduced maintenance and a long operating life, the sensor offers real value for money.

  • Voordelen

    • High measurement accuracy

    • Long maintenance intervals

    • Minimum calibration effort thanks to simple air calibration

  • Toepassingsgebied

    Oxymax COS41 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...

Kenmerken en specificaties



  • Meetprincipe

    Sensor Oxygen

  • Application

    Aeration tank, river monitoring, water treatment, fish farming.

  • Characteristic

    Amperometric 2-electrode system to measure dissolved oxygen.

  • Measurement range

    0,05 - 20mg/l

  • Measuring principle

    Closed (membrane covered) amperometric 2-electrode sensor.

  • Design

    - Extreme stable membrane- Analog communication

  • Material

    Sensor body : POMMembrane cap : POM

  • Dimension

    Diameter : 40mm
    (1.56inch)Length : 220mm

  • Process temperature

    max. 50°C

  • Process pressure

    max. 10bar

  • Temperature sensor

    Integrated NTC-sensor

  • Connection

    Process connection : G1"Cable : Fixed cable or TOP68 connector

Documenten / handleidingen / software

Accessoires / Spare parts

Order code
  • 2
  • 1
  • 3
    • Order code 50003987

      VBM junctionbox voor verlengkabel

      Met 10 hoog-ohmige aansluitklemmen Beschermingsklasse: IP65 Afmetingen: 125 x 80 x 55 mm (LxBxH)

    • Order code 50081787

      COY3-SK membraam beschermingsplaat

      for immersion of diss. oxygen sensors COS31/41/51D/61/61D in fish ponds.

    • Order code COS41-

      OXYMAX-W COS41

      Amperometrische 2-electroden zuurstof- sensor. Uitstekend geschikt voor afval- en drinkwaterapplicaties. Nulpuntkali- -bratie niet vereist. Montage met interne draad G1" of NPT3/4" Meetbereik 0.05...20 mg/l. Temperatuur range -5...50°C, 10 bar minimum flow 0.5 cm/s, IP 68. Incl. een cartridge met 10 ampullen met navul elektroliet, en reservemembranen

    • Order code COY8-

      Zero-point gel COY8

      Zero point: Verification, calibration, adjustment Check of zero point at oxygen sensors ::Amperometric and optical sensors ::12 and 40mm diameter ::Applicaiton in the lab, in the field

  • Voorganger