Enter at least 2 characters to start the search.
Show all products: Analysis Optical
Download as PDF

Dissolved oxygen sensor
Oxymax COS61

Dissolved oxygen sensor Oxymax COS61 ©Endress+Hauser
Dissolved oxygen sensor Oxymax COS61 ©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 COS61
  • Dissolved oxygen sensor Oxymax COS61

Optical oxygen sensor for water, wastewater and utilities

Oxymax COS61 is a high-performance 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.

  • Simple products

  • Easy to select, install and operate

Technical excellence

Simplicity

  • Standard products

  • Reliable, robust and low-maintenance

Technical excellence

Simplicity

  • High-end products

  • Highly functional and convenient

Technical excellence

Simplicity

  • Specialized products

  • Designed for demanding applications

Technical excellence

Simplicity

Variable

FLEX selections Technical excellence Simplicity
  • F
  • L
  • E
  • X

Fundamental selection

Meet your basic measurement needs

Technical excellence
Simplicity
  • F
  • L
  • E
  • X

Lean selection

Handle your core processes easily

Technical excellence
Simplicity
  • F
  • L
  • E
  • X

Extended selection

Optimize your processes with innovative technologies

Technical excellence
Simplicity
  • F
  • L
  • E
  • X

Xpert selection

Master your most challenging applications

Technical excellence
Simplicity

Variable

  • Specs at a glance

    • Measurement range

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

    • Process temperature

      -5°C ... 60°C
      ( 23 - 140°F)

    • Process pressure

      max. 10bar
      (145psi)

Quick selection

Choose from our suggested options
    -- selected coding
    -- selected label
    <%label%>
    -- selected coding
    -- selected label
    <%feature%>
  • Process Connection
      <%label%>
      <%label%>

  • <%message%>

COS61
Show details Hide details
Show details
Back to Quick Selection
  • <%feature%>
    <%coding%>
    <%label%>
pc
Loading price
Prices temporarily unavailable
from CHF 803.-
  • Optional add-ons
Please use the individual configurator to continue
or

Individual configuration

Continue your selection from all possible options

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

    Loading price
    Prices temporarily unavailable
    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

    Loading price
    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

    Loading price
    Prices temporarily unavailable
    from CHF 803.-

  • Benefits

    • Minimum maintenance, maximum availability

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

    • Long-term stability for increased process safety

    • High-performing in all aeration processes (SBR, Anamox, etc.)

    • Chemical-free: no electrolyte...

  • Field of application

    Oxymax COS61 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

Back

Details

  • Measuring principle

    Optical oxygen measurement

  • Application

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

  • Characteristic

    Digital, optical (luminescence) dissolved oxygen measurement.
    No flow needed - measurement possible in still water.

  • Measurement range

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

  • 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 body : stainless steel 1.4571Membrane cap : POM

  • Dimension

    Diameter : 40mm
    (1.56inch)Length : 220mm
    (8.58inch)

  • Process temperature

    -5°C ... 60°C
    ( 23 - 140°F)

  • Process pressure

    max. 10bar
    (145psi)

  • Temperature sensor

    NTC temperature sensor, 0 to 50°C
    (32 - 122°F)

  • Connection

    Process connection: G1" thread
    Cable connection : fixed cable or TOP68 plug-in-head.

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
  • 70
  • 80
  • 10
    • Nr 10 Order code 51506820

      Measuring cable COK31-1.5

      1.5 m of length, ready made for sensors COS31, COS61 and COS71 with TOP68 connector.

  • 20
    • Nr 20 Order code 51506821

      Measuring cable COK31-7

      7 m of length, ready made for sensors COS31, COS61 and COS71 with TOP68 connector.

  • 30
    • Nr 30 Order code 51506822

      Measuring cable COK31-15

      15 m of length, ready made for sensors COS31, COS61 and COS71 with TOP68 connector.

  • 60
  • 90
    • 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 51518599

      Calibration cap, COS31/41/61/51D/61D//71

  • 120
    • Nr 120 Order code 50001054

      Junction box VS

      with socket and plug, type SXP Protection class: IP65.

    • 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

    • 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

  • Baltic Sea water used as cooling water in the power station Baltic Sea water used as cooling water in the power station

    Cooling water directly from the Baltic Sea

    With the CUS52D, power plant operator KNG benefits from reduced maintenance costs due to reliable, stable measurement even under harsh conditions in salt water.

  • Reaction of styrene-butyl acrylate emulsion polymerizatio Reaction of styrene-butyl acrylate emulsion polymerizatio

    Monitoring Emulsion Polymerization Reactions

    Process optimization via reaction endpoint detection and control of kinetics

  • Schematic diagram of process-control system for semi-batch polymerization Schematic diagram of process-control system for semi-batch polymerization

    Semi-batch polymerization

    Monitoring and control of a semi-batch polymerization with Raman spectroscopy

  • real-time monitoring of critical parameters in fermentation processes real-time monitoring of critical parameters in fermentation processes

    Advanced bioprocess control

    From time consuming sample analysis to real-time monitoring of critical parameters in fermentation processes thanks to complete solutions from hardware to development and analytical services.

  • 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.

Compare products
We use cookies to store information on your device which helps us to customize and improve your interactions with us. More on cookies can be found in the privacy policy.

Please select your market / region

Go to selected market / region