Process Control Instruments, Field Devices and Industrial Automation
ENDRESS+HAUSER COS41-8S (1)
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EH Oxymax COS41 2-electrode amperometric sensor for the measurement of Dissolved Oxygen (O2) on water and wastewater applications. 0,05 - 20mg/l measuring range. Integrated NTC temperature sensor.

Part# with Options:        COS41-8S
Price with Options:        Please Email us your request for quote   

Options:    

Cable Length
(1) Cable Length for EH FTL71
Head
(2) Head for EH FTL71

  Availability 10 Days  ]

Application

The continuous measurement of the dissolved oxygen concentration is very important in many areas of water management:

  • Sewage treatment plants: Oxygen measurement and regulation in the activated sludge basin for a highly efficient biological cleaning process
  • Water monitoring: Oxygen measurement in rivers, lakes or seas as an indicator of the water quality
  • Water treatment: Oxygen measurement for status monitoring of drinking water for example (oxygen enrichment, corrosion protection etc.)
  • Fish farming: Oxygen measurement and regulation for optimum living and growth conditions
Your benefits
  • Maximum measurement accuracy:
    • Long maintenance intervals
    • Intelligent sensor self monitoring
  • Membrane covered sensor, i.e.:
    • high O2 selectivity
    • Minimum maintenance effort
    • Minimum calibration effort thanks to simple calibration in
    • air
Measuring principle

The oxygen molecules diffused through the membrane are reduced to hydroxide ions (OH-) at the cathode. Silver is oxidized to silver ions (Ag+) at the anode (this forms a silver halogenide layer). A current flows due to the electron donation at the cathode and the electron acceptance at the anode. Under constant conditions, this flow is proportional to the oxygen content of the medium. This current is converted in the transmitter and indicated on the display as an oxygen concentration in mg/l, as a saturation index in % SAT or as an oxygen partial pressure in hPa.

Measuring system
  • Oxygen sensor
  • Transmitter, e.g. Liquisys M COM223/253
  • Special measuring cable
  • Assembly, e.g. flow assembly COA250, immmersion assembly CYA611 or retractable assembly COA451

Measuring principle

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
(8.85inch)

Process temperature

max. 50C
(122F)

Process pressure

max. 10bar
(145psi)

Temperature sensor

Integrated NTC-sensor

Connection

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

Export Info
Made inGermany

  • OXYGEN > TRANSMITTERS
    COM223-DX0005 EH Liquisys COM223 Dissolved Oxygen transmitter for use with COS41 and COS61 sensors. 0/4-20 mA, HART and PROFIBUS interfaces. IP65. CSA Approval. ..

  • OXYGEN > TRANSMITTERS
    COM253-DX0005 EH Liquisys COM253 Dissolved Oxygen field transmitter for use with COS41 and COS61 sensors. 0/4-20 mA, HART and PROFIBUS interfaces. PC/ABS Housing. IP65. CSA Approval. ..

  • OXYGEN ANALIZERS > ASSEMBLY
    COA250-A EH Cleanfit COA250 flow assembly for Dissolved Oxygen sensors. Wall mounting or unsupported installation in pipes. PVC Material. 871 psi max pressure. ..

  • OXYGEN ANALIZERS > ASSEMBLY
    COA451-A1A EH Cleanfit COA451 manually operated retractable assembly for Dissolved Oxygen sensors. Includes stop bolt, O-ring seals and a ball valve. Stainless Steel Holder. ..


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