Product Overview
Oxymax COS61/COS61D is a high-performance dissolved oxygen sensor that provides fast, accurate and drift-free measurement. It features low maintenance, high applicability and simple operation. The sensor's long-term stable fluorescent layer is oxygen-selective (interference-free), ensuring reliable measurement at all times. AdvantagesMinimum maintenance requirements, maximum applicabilityFast, drift-free measurement for precise aeration control and process monitoringLong-term stable measurement for increased process safetyBest measurement performance for all types of aeration processes (SBR, Anamox, etc.)No chemical reagents required: no electrolyte handlingEasy conversion of measuring points to fluorescence technology, compatible with COS31 and COS41 Application areasOxymax COS61 is used for dissolved oxygen concentration measurement: Wastewater treatment plants:- O2 aeration basin control- Process water treatment and monitoringWaterworks:- Drinking water condition monitoring (oxygen enrichment, corrosion protection, etc.)- River, lake or seawater quality monitoringUtilities:- O2 biological treatment control- Process water treatment and monitoringFish ponds:- O2 optimal growth condition controlSpare Parts & Accessories 18
18 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 51518598 | Sensor membrane cap, COS61, COS61D, 1 pcSuccessor kit COV61 | Details |
| 51518597 | Sealing set, sensor COS61, COS61D, 2 piecesSealing set, Sensor COS61, 2 pieces | Details |
| COV61- | COV61 Maintenance kit COS61/COS61xMaintenance parts for COS61/COS61x. Include membrane caps, o-rings and further materials for maintenance. | Enquire |
| 71495128 | Kit COSxx Standard Protective Cap | Details |
| 71495126 | COSxx 8.5 mm aperture cage-type dissolved oxygen sensor protective cap | Details |
| 71495130 | COSxx Dissolved Oxygen Sensor Protective Cap for Fish Farm Aquaculture Applications | Details |
| 71110801 | Cleaning head COS61/61D 6/8mm | Details |
| 71110802 | Cleaning head COS61/61D 1/4" | Details |
| 51518599 | COS31/41/51D/61/71 calibration capCalibration cap, COS31/41/61/71 | Details |
| 50001054 | Junction Boxwith socket and plug, type SXP Protection class: IP65. | Details |
| COY8- | Zero-Point Gel COY8Zero 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 | Enquire |
| 51506820 | Measuring cable COK31-1.51.5 m of length, ready made for sensors COS31, COS61 and COS71 with TOP68 connector. | Details |
| 51506821 | Measuring cable COK31-77 m of length, ready made for sensors COS31, COS61 and COS71 with TOP68 connector. | Details |
| 51506822 | Measuring cable COK31-1515 m of length, ready made for sensors COS31, COS61 and COS71 with TOP68 connector. | Details |
| 51507038 | KIT COS31/71-S TOP68 plug unit | Details |
| 50053276 | Protective cage for COS31/41/51D/61/71protection cage | Details |
| 50081787 | COY 3-SK membrane protective basketfor immersion of diss. oxygen sensors COS31/41/51D/61 in fish ponds. | Details |
| 50001041 | DO/Chlorine Sensor Zero-Point Calibration PowderChemical producing water free of oxygen or chlorine for test purposes. | Details |
Configurator / Comparison
Manuals & Documents 5
All documents for this modelCase Studies
Municipal Wastewater Treatment · dissolved oxygen — Application Case
Site Conditions
This is a Municipal Wastewater Treatment customer whose plant is at the inlet, biological and outlet stages of a municipal plant. The main task was measuring dissolved oxygen for biological processes and deaeration control.
The Problem
The difficulty lies in high solids and corrosive fractions, with large diurnal flow swings; at the same time effluent parameters drift and probes foul with sludge and biofilm. Specification therefore means choosing membrane or optical sensors by basin depth and cleaning method.
What We Did
We took a analyser range approach — selecting as part of a complete water-analysis system. Delivery was built around choosing membrane or optical sensors by basin depth and cleaning method, with point-by-point checks on: stable compliance with Grade 1A discharge limits and online data reporting.
Operating Outcome
In service the system performs as intended — blowing follows oxygen demand, cutting aeration power noticeably, with routine maintenance falling noticeably.
Food & Beverage · dissolved oxygen — Application Case
Application Context
dosing, pasteurising, filling and CIP stages is a typical Food & Beverage duty. The project started from dissolved oxygen, focusing on measuring dissolved oxygen for biological processes and deaeration control.
Process Constraints
frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, and syrups, dairy and beverages that scale easily, under strict hygienic requirements only amplify it. The dissolved oxygen specification must therefore cover choosing membrane or optical sensors by basin depth and cleaning method.
Delivery Approach
Delivery was handled as the analyser range — selecting as part of a complete water-analysis system. Execution centred on choosing membrane or optical sensors by basin depth and cleaning method, together with food-safety and hygienic design per 3-A / EHEDG.
Field Results
Operation shows the benefit clearly — blowing follows oxygen demand, cutting aeration power noticeably, with confidence in this measuring point improving markedly.
Chemical & Pharmaceutical · dissolved oxygen — Application Case
Customer Profile
The typical setting in Chemical & Pharmaceutical is reactors, metering vessels and finished-product tanks. The measuring point is dissolved oxygen; the focus is measuring dissolved oxygen for biological processes and deaeration control.
Key Difficulties
Conditions are highly corrosive media with solvents and crystallisation, partly in explosive atmospheres and, on top of that, corrosion plus Ex protection shortens instrument life and makes downtime costly, which a standard configuration cannot handle for long. The design therefore starts with choosing membrane or optical sensors by basin depth and cleaning method.
Implementation
The scope ran through the analyser range: selecting as part of a complete water-analysis system. Technically it hinges on choosing membrane or optical sensors by basin depth and cleaning method, and on these requirements: Ex certification and GMP traceability of records.
Customer Benefit
In practice this means blowing follows oxygen demand, cutting aeration power noticeably, which cut the workload on the site maintenance team.
Power & Energy · dissolved oxygen — Application Case
Project Background
The project covers boiler feedwater, turbine condensate and FGD/DeNOx systems. The work centres on dissolved oxygen and the core task is measuring dissolved oxygen for biological processes and deaeration control.
Operating Challenges
The medium and duty are characterised by high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. So dissolved oxygen cannot be specified generically — it calls for choosing membrane or optical sensors by basin depth and cleaning method.
Solution
The Ainstru engineering team worked through the analyser range: selecting as part of a complete water-analysis system. The configuration involves choosing membrane or optical sensors by basin depth and cleaning method, with these requirements in view: compliance with power-industry codes and unit availability targets.
Results
Since start-up the system has run steadily; the practical result is blowing follows oxygen demand, cutting aeration power noticeably.
Related Products
Endress+HauserLiquisys M COM223
Endress+HauserOxymax W COS41
Endress+HauserOxymax COS61D
Endress+HauserDissolved oxygen sensor
Endress+HauserOxymax W COS51D
Endress+HauserLiquisys M COM253
Endress+HauserMemosens COS51E
Endress+Hauser