Endress Hauser AG

- Model COS51D - Digital Oxygen Sensor



Memosens amperometric oxygen sensor for water, wastewater and utilities. Oxymax COS51D is a reliable and highly accurate oxygen sensor for all kinds of water & wastewater applications (including hazardous areas). Designed to be low-maintenance with a long operating life, the sensor offers outstanding value for money. Thanks to Memosens digital technology, the Oxymax COS51D combines maximum process and data integrity with simple operation. It resists corrosion and moisture, enables lab calibration and facilitates predictive maintenance.

  • Maximum measurement accuracy
  • Logging of sensor load data for easy traceability
  • Intelligent, self-monitoring sensor
  • Minimum calibration effort thanks to simple air calibration
  • Long maintenance intervals
  • Approved for hazardous area use

Oxymax COS51D 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 protection, etc.)
    • Water quality monitoring in rivers, lakes or seas
  • Utilities of all industries:
    • O2 control in the biological treatment
    • Process water treatment and monitoring
  • The sensor is suitable for hazardous area use (ATEX, FM, CSA).

  • Oxygen Measuring Principle: Sensor Oxygen
  • Application: Aeration tank, river monitoring, water treatment, fish farming.
  • Characteristic: Amperometric 3-electrode sensor to measure dissolved oxygen.
  • Measurement range: 0,01 - 100mg/l
  • Measuring principle: Closed membrane covered amperometric 3-electrode system.
  • Design: digital signal transmission
  • Storage of the calibration datas in the sensor.
  • Material: Sensor body: POM
  • Membrane cap: POM
  • Dimension: Diameter: 40mm (1.56inch)Length: 220mm  (8.58inch)
  • Process temperature: max. 50°C  (max.122°F)
  • Process pressure: max. 10bar  (max.145psi)
  • Connection: - Memosens connector- Process: G1' , NPT3/4

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