Endress Hauser Digital Dissolved Oxygen Sensor COS61D-AAA1A4

Oxymax COS61D is a high-performance, digital 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. Thanks to Memosens digital technology, the Oxymax COS61D combines maximum process and data integrity, and facilitates simple lab calibration.

Specifications

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• Measuring principle	Optical oxygen measurement
  Application	Aeration tank, river monitoring, water treatment, fish farming
  Characteristic	Digital, optical measurement of dissolved oxygen based on fluorescence quenching Measurement possible in still water
  Measuring range	0 to 20 mg/l 0 to 200 %SAT 0 to 400 hPa
  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 shaft: stainless steel 1.4435 Membrane cap: POM
  Dimension	Diameter: 40 mm (1.57 inch) Shaft length: 186 mm (7.32 inch)
  Process temperature	-5 to 60 °C (20 to 140 °F)
  Process pressure	Max. 10 bar abs (Max. 145 psi)
  Temperature sensor	NTC 30K
  Connection	Process connection: G1, NPT 3/4" Cable connection: fixed cable or TOP68 plug-in-head