
Specs at a glance
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Measurement range
0.01 to 100 mg/l
0.00 to 1000 %SAT
0 to 2000 hPa -
Process temperature
-5 to 50 °C
(20 to 120 °F) -
Process pressure
max. 10 bar
(max. 145 psi)
Field of application
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. Oxymax COS51D is not the latest Memosens generation. To get information on the new Memosens COS51E sensor with extended functionality, click here.
Oxymax COS51D 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 monitoring
The sensor is suitable for hazardous area use (ATEX, FM, CSA).
Benefits
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
Videos
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity

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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 |
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Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
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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 |
Predecessor
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Technical Information (TI)
Technical Information COS51D
Oxygen sensor
EN 21/08/201201/03/201001/03/2007Language:
English
Version:
21/08/2012
File size:
562.4 KB
File name:
TI00413CEN_1312.pdf
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Operating Instruction (BA)
Operating Instructions Oxymax COS51D
Digital sensor for dissolved oxygen
EN 21/08/201201/10/200801/03/2007Language:
English
Version:
21/08/2012
File size:
1.6 MB
File name:
BA00413CEN_1312.pdf
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Short Instruction (KA)
Oxymax COS51D Brief Operating Instructions
Amperometric sensor for the measurement of dissolved oxygen
EN 31/05/201621/08/201202/10/2006Language:
English
Version:
31/05/2016
File size:
1.4 MB
File name:
KA00413CEN_1416.pdf
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Installation Instructions (EA)
EA Kit COS41/COS51D/E
for maintenance of the Oxymax W COS41/COS51D and Memosens COS51E oxygen sensors
EN 05/05/2023Language:
English
Version:
05/05/2023
File size:
636.5 KB
File name:
EA01476CEN_0123-00.pdf
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Special Documentation (SD)
Memoclip
Äußere Kennzeichnung von digitalen Sensoren und Kabeln mit Memosens-Technologie
EN 01/03/2007Language:
English
Version:
01/03/2007
File size:
284.4 KB
File name:
SD124Ca2.pdf
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Special Documentation (SD)
Liquiline CM14 DO kit 1
For oxygen measurement in wastewate
EN 16/07/2012Language:
English
Version:
16/07/2012
File size:
345.2 KB
File name:
SD169_CM14_A5_71154963.pdf
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Fields of Activities (FA)
Esperti nell’analisi dei liquidi
Dai sensori singoli a soluzioni complete “chiavi in mano”
Language:
Italian
Version:
12/01/2017
File size:
3.9 MB
File name:
FA01018CIT_02.16.pdf
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Fields of Activities (FA)
Catálogo Portfolio Analítica
Desde sensores hasta soluciones completas
Language:
Spanish
Version:
12/01/2017
File size:
1.5 MB
File name:
FA01018CES_Portfolio_Analitica_0216.pdf
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Fields of Activities (FA)
Jistota v analýze kapalin
Od senzorů po kompletní dodávku na klíč
Language:
Czech
Version:
12/01/2017
File size:
740.3 KB
File name:
Analyza_FA01018Ccs_0216.pdf
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Electrolytes
50053349 (Japan)
COY3-F
Language:
Japanese
Version:
22/11/2022
File size:
405.8 KB
File name:
MSDS_50053349_(J).pdf
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