Specs at a glance
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Measuring 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)
Field of application
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.
Oxymax COS61 measures the dissolved oxygen concentration in:
Wastewater treatment plants:
- O2 control in the aeration basin
- Process water treatment and monitoringWater works:
- Status monitoring of drinking water (oxygen enrichment, corrosion protection, etc.)
- Water quality monitoring in rivers, lakes or seasUtilities of all industries:
- O2 control in the biological treatment
- Process water treatment and monitoringFish farming:
- O2 control for optimum growth conditions
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 handling
Easy measuring point changeover to optical technology compatible with COS31 and COS41
Videos
Predecessor
Success stories
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
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Technical Information (TI)
Oxymax COS61D/COS61
Optical sensor for measuring dissolved oxygen
EN Select other language 05/01/202219/02/202117/07/201821/08/201207/06/2010Language:
English
Version:
05/01/2022
File size:
1.9 MB
File name:
TI00387CEN_1621-00.pdf
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Operating Instruction (BA)
Operating Instructions COS61
Optical oxygen sensor
EN Select other language 21/08/201201/10/200501/06/2005Language:
English
Version:
21/08/2012
File size:
3.2 MB
File name:
BA00387CEN_1312.pdf
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Short Instruction (KA)
Brief Operating Instructions Oxymax COS61
Optical oxygen sensor
EN Select other language 21/08/201201/10/2005Language:
English
Version:
21/08/2012
File size:
821.1 KB
File name:
KA00387CEN_13.12.pdf
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Installation Instructions (EA)
EA Kit for Oxymax COS61/COS61D
For maintenance of oxygen sensors COS61 and COS61D
EN Select other language 04/03/202518/05/2022Language:
English
Version:
04/03/2025
File size:
1.1 MB
File name:
EA01425CEN_0225-00.pdf
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Special Documentation (SD)
SD COV61
Maintenance Kit for COS61 and COS61D
Language:
English
Version:
13/03/2025
File size:
287.7 KB
File name:
SD03389CEN_0125-00.pdf
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Fields of Activities (FA)
Sensors, transmitters, compact devices and assemblies
Experts in Liquid Analysis
Language:
English
Version:
24/09/2024
File size:
4.2 MB
File name:
FA00007CEN_Analyse_21.24_LowRes.pdf
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Fields of Activities (FA)
Sensoren, Messumformer, Kompaktgeräte and Armaturen
Kompetenz in der Flüssigkeitsanalyse
Language:
German
Version:
24/09/2024
File size:
4.1 MB
File name:
FA00007CDE_Analyse_21.24_LowRes.pdf
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Manufacturer Declaration
Product family: OxyMax W
Product root: COS61-
Declaration number: HE_01675_01.22
Manufacturer specification: RoHS
Additional information: China-RoHSEN Select other language 27/09/2022Language:
English
Version:
27/09/2022
File size:
387.8 KB
File name:
HE_01676_01.22_COS61D_China-RoHS.pdf
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EU Declaration
Product family: OxyMax W
Product root: COS61-
Declaration number: EC_00151_02.16EN Select other language 06/01/2023Language:
English
Version:
06/01/2023
File size:
277.9 KB
File name:
EC_00151_03.23_COS61_nonEx.pdf
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UK Conformity Assessed
Product family: OxyMax W
Product root: COS61-
Declaration number: UK_00376_01.21Language:
English
Version:
06/08/2021
File size:
277.8 KB
File name:
UK_00376_1.21 COS61_nonEx.pdf
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Miscellaneous
Product family: Absorbance, Cell growth, Isemax, Liquiport, Liquistation M, Memosens, New analyzer platform, OxyMax W, Spectrometer, Turbidity and total suspended solids, Turbimax, UV
Product root: CA80AL-, CA80AM-, CA80COD-, CA80CR-, CA80FE-, CA80HA-, CA80NO-, CA80PH-, CA80SI-, CA80TN-, CA80TP-, CAS40D-, CAS80E-,
COS22E-, COS41-, COS51E-, COS61-, COS61D-, COS81E-, CSF48-, CSP44-, CUS50D-, CUS51D-, CUS52D-, OUSAF11-, OUSAF12-, OUSAF21-, OUSAF22
-, OUSAF46-, OUSBT66-, OUSTF10-
Region: Eurasian Economic Union
Approval agency: T-Standard
Approval number: ЕАЭС KZ 7500525.13.12.00620Language:
Russian
Version:
27/03/2025
File size:
1.3 MB
File name:
EAC KZ 7500525.13.12.00620.pdf
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Miscellaneous
Product family: Absorbance, Cell growth, Isemax, Liquiport, Liquistation M, Memosens, New analyzer platform, OxyMax W, Spectrometer, Turbidity and total suspended solids, Turbimax, UV
Product root: CA80AL-, CA80AM-, CA80COD-, CA80CR-, CA80FE-, CA80HA-, CA80NO-, CA80PH-, CA80SI-, CA80TN-, CA80TP-, CAS40D-, CAS80E-,
COS22E-, COS41-, COS51E-, COS61-, COS61D-, COS81E-, CSF48-, CSP44-, CUS50D-, CUS51D-, CUS52D-, OUSAF11-, OUSAF12-, OUSAF21-, OUSAF22
-, OUSAF46-, OUSBT66-, OUSTF10-
Region: Eurasian Economic Union
Approval agency: T-Standard
Approval number: ЕАЭС KZ 7500525.13.12.00638Language:
Russian
Version:
11/02/2025
File size:
1.3 MB
File name:
EAC KZ 7500525.13.12.00638.pdf
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Maintenance kits 71512570: COV61
Maintenance kits 71512570: COV61
Kit Content Pcs. Pos.
Sensor cap COS61/D
O-ring (optional)
Zero Point Solution PowderLanguage:
English
Version:
09/05/2025
File size:
161.4 KB
File name:
Components_Sheet_COV61_maintenace_kits.pdf
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Sensor cap, COS61,COS61D, 1 piece
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Measuring chamber
Drawing numberOrder code8051518598 -
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Sealing set,SensorCOS61,COS61D2pieces
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Sealing
Drawing numberOrder code7051518597 -
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COV61 maintenance kits COS61/COS61x
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further parts
Order codeCOV61- -
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Kit COSxx Protection cage Standard
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further parts
Order code71495128 -
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Kit COSxx Protection cage 8,5 mm holes
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further parts
Order code71495126 -
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Kit COSxx Protection cage Fish farming
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further parts
Order code71495130 -
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Zero-point gel COY8
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further parts
Order codeCOY8- -
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Measuring cable COK31-1.5
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Cable/cable accessories
Drawing numberOrder code1051506820 -
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Measuring cable COK31-7
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Cable/cable accessories
Drawing numberOrder code2051506821 -
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Measuring cable COK31-15
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Cable/cable accessories
Drawing numberOrder code3051506822 -
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KIT COS31/71-S TOP68 plug unit
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Connection (electrical)
Drawing numberOrder code6051507038 -
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Protectiv.cage for COS31/41/51D/61/71
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Housing/housing accessories
Drawing numberOrder code9050053276 -
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Zero solution for DO/chlorine sensors
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further parts
Order code50001041 -
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Zero-point gel COY8
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further parts
Order codeCOY8- -
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Zero-point gel COY8
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further parts
Order codeCOY8- -
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Cleaning head COS61/61D, 6 or 8mm
Order code71110801 -
Cleaning head COS61/61D 1/4"
Order code71110802 -
Calibration cap, COS31/41/61/51D/61D//71
Order code51518599 -
Junction box VS
Drawing numberOrder code12050001054 -
COY 3-SK membrane protective basket
Order code50081787
Often bought together
Accessories
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