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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.

  • Dissolved oxygen sensor Oxymax COS41
  • Dissolved oxygen sensor Oxymax COS41

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.

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Variable

  • Specs at a glance

    • Measurement range

      0,05 - 20mg/l

    • Process temperature

      max. 50°C
      (122°F)

    • Process pressure

      max. 10bar
      (145psi)

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  • Optional add-ons
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Additional components

  • Liquisys COM223 is a compact panel transmitter for dissolved oxygen measurement. Liquisys COM223 is a compact panel transmitter for dissolved oxygen measurement.

    Dissolved oxygen transmitter
    Liquisys COM223

    Compact panel device for water, wastewater, utilities and fish farming

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    from CHF 803.-
  • Liquisys COM253 is a compact field transmitter for dissolved oxygen measurement. Liquisys COM253 is a compact field transmitter for dissolved oxygen measurement.

    Dissolved oxygen transmitter
    Liquisys COM253

    Compact field device for water, wastewater, utilities and fish farming

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    Prices temporarily unavailable
    from CHF 803.-
  • COY8 is an oxygen-free gel for validation, calibration and adjustment of oxygen and chlorine sensors COY8 is an oxygen-free gel for validation, calibration and adjustment of oxygen and chlorine sensors

    Zero-point gel
    COY8

    Ready-to-use gel for validation, calibration, and adjustment of oxygen and disinfection sensors

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    Prices temporarily unavailable
    from CHF 803.-

  • Benefits

    • High measurement accuracy

    • Long maintenance intervals

    • Minimum calibration effort thanks to simple air calibration

  • Field of application

    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...

Features and specifications

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Details

  • Measuring principle

    Amperometric oxygen measurement

  • 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
    (8.85inch)

  • Process temperature

    max. 50°C
    (122°F)

  • Process pressure

    max. 10bar
    (145psi)

  • Temperature sensor

    Integrated NTC-sensor

  • Connection

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

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
    • Order code 51506784

      Accessory kit COY31-Z

      Content: COY3-F, COY31-WP, COY31-OR and COY31-PF for sensors COS31, COS41 and COS51D standard

    • Order code 50053349

      Elektrolyte COY3-F

      10 pcs. plastic ampoules, for sensors COS3/3S/COS4 and COS31/41/51D/71.

  • 2
    • Nr 2 Order code 51506976

      Set of 2x membrane cap COY31-WP

      2 pcs. ready made for sensors COS31, COS41 and COS51D standard

  • 1
    • Nr 1 Order code 51506985

      Sealing set COY31-OR

      3 pieces O-rings for sensors COS31, COS41, COS51D and COS71.

    • Order code 51506973

      Polishing foil COY31-PF

      10 pcs. for cleaning of the gold cathode for sensors COS31, COS41, COS51D and COS71.

    • Order code 51506817

      Measuring cable COK41-7

      7 m of length, ready made for sensor COS41 with TOP68 connector.

    • Order code 51506818

      Measuring cable COK41-15

      15 m of length, ready made for sensor COS41 with TOP68 connector.

    • Order code 71495126

      Kit COSxx Protection cage 8,5 mm holes

    • Order code 71495128

      Kit COSxx Protection cage Standard

    • Order code 71495130

      Kit COSxx Protection cage Fish farming

  • 3
    • Order code 50003987

      Junction box VBM

      with 10 high-impedance terminals Protection class: IP65 Dimensions: 125 x 80 x 55 mm (L x W x H)

    • Order code 50081787

      COY 3-SK membrane protective basket

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

    • Order code COS41-

      Oxymax W COS41

      Dissolved oxygen sensor, amperometric. 2 electrode cell. Application: Water, waste water. Measuring range: 0.05...20 mg/l. :: Compatibility, Sensor: COS4.

    • Order code COY8-

      Zero-point gel COY8

      Zero point: Verification, calibration, adjustment at zero point of oxygen and disinfection sensors ::Amperometric and optical sensors ::12, 25 and 40mm diameter ::Application in the lab, in the field

Success stories

  • Industrial WWTP at Pasfrost Industrial WWTP at Pasfrost

    Compliance made easy

    The automated phosphate monitoring with Liquiline System CA80PH helps the food company Pasfrost ensure the compliance with the strict limit values for its industrial wastewater.

  • Pasfrost plant in Passendale, Belgium Pasfrost plant in Passendale, Belgium

    Conductivity measurement in a water reuse plant

    Pasfrost relies on Memosens CLS82D for the conductivity measurements in its water reuse plant. The sensor provides precise measurements even of very low conductivity values.

  • The aeration tank of a sewage treatment plant. The aeration tank of a sewage treatment plant.

    On the trail of orthophosphate

    White Paper on Orthophosphate Measurement in Municipal Sewage Treatment Plants

  • Sustainable wastewater treatment at Emmi's milk processing plant in Dagmersellen, Switzerland Sustainable wastewater treatment at Emmi's milk processing plant in Dagmersellen, Switzerland

    Making a clean job of it at Emmi

    Efficient wastewater treatment with Oxymax COS61D in the Sequencing Batch Reactor of a dairy company

  • The Stadtlohn WWTP regulates nitrogen reduction using the Liquiline Control. The Stadtlohn WWTP regulates nitrogen reduction using the Liquiline Control.

    Controlled by Liquiline Control

    Liquiline Control regulates nitrification and denitrification in the Stadtlohn wastewater treatment plant. The control system ensures compliance with limit values and optimized energy usage.

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