Digital oxygen sensor
Memosens COS81D

The Memosens COS81D optical oxygen sensor is available in 120 mm length. — The Memosens COS81D optical oxygen sensor is available in 120 mm and...

The Memosens COS81D optical oxygen sensor is available in 220 mm length. — ...220 mm length.

The sensor is designed according to ASME BPE and EHEDG. — The sensor is designed according to ASME BPE and EHEDG allowing its use in applications with highest hygiene requirements such as fermentation, inertization or drinking water production.

Memosens COS81D can be applied in the process and in the laboratory. Providing you with 100% measuring consistency throughout your entire production.

Memosens COS81D with c-shaped sensor cap. Use this cap for oxygen measurement in fermenters. — Memosens COS81D with c-shaped tip of the sensor cap. Use this cap for oxygen measurement in liquids such as fermenter applications, to prevent the attachment of air bubbles.

Memosens COS81D with u-shaped sensor cap. Use this cap for oxygen measurement in inertization. — Memosens COS81D with u-shaped tip of the sensor cap. Use this cap for oxygen measurement in gas phases such as in inertizations, where abrasive particles could damage the cap's optical layer.

Conveniently maintain and calibrate your COS81D sensor in the laboratory with Memobase Plus CYZ71D. — Conveniently maintain and calibrate your Memosens COS81D sensor under controlled conditions in your lab with the Memobase Plus software.

Install the precalibrated sensor in your process and your measurement is instantly ready. — Install the precalibrated Memosens COS81D sensor in your process and your measurement is instantly ready for the next batch.

The concentration of oxygen dissolved in a liquid can be measured using the amperometric or optical measuring principles. This video shows what it is about and how these measuring principles work.

Memosens converts the measured value to a digital signal and transfers it to the transmitter without a contacting connection. This video shows how Memosens optimizes process control and maintenance.

Memosens optical oxygen sensor for hygienic applications in Life Sciences, Pharma and Food

Memosens COS81D is the ideal oxygen sensor for hygienic applications such as fermentation and inertization. Its precise, long-term stable measurements and its permanent self-monitoring ensure the most reliable measured values to help meet your desired product quality and optimize product yield. Thanks to Memosens digital technology, COS81D combines maximum process and data integrity with simple operation. It enables lab calibration and facilitates predictive maintenance.

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Additional components

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Benefits
Hygienic design according to EHEDG and ASME BPE (incl. USP class VI and FDA compliance) avoids cross-contamination and fulfills all GMP and GLP requirements.

The sensor can be used in process applications as well as benchtop fermenters. Providing you...

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Hygienic design according to EHEDG and ASME BPE (incl. USP class VI and FDA compliance) avoids cross-contamination and fulfills all GMP and GLP requirements.

The sensor can be used in process applications as well as benchtop fermenters. Providing you with 100% measuring consistency from the first lab trials to the final scaled-up process and your process lab.
More process up-time than ever before thanks to sensor exchange within seconds: precalibrate the sensor in your lab and then swap it into your process with plug & play. It does not need polarization time and is immediately ready to measure.
A built-in reference LED compensates the ageing of the measuring LED. This ensures reliable measured values throughout your entire batch production.

Reduce your maintenance effort: Memosens COS81D does not have a difficult-to-handle electrolyte or sensitive membrane. Just exchange the sensor cap, perform a calibration and you are done.

Memosens COS81D stores important sensor and process data in its intelligent head. The Memobase Plus CYZ71D sensor management software can use all this data to document the complete sensor lifetime offering full traceability with minimal paperwork.

Suitable for CIP/SIP and autoclaving and approved for hazardous area use.

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Field of application
Memosens COS81D measures oxygen in applications with high demands to sterility and hygiene such as:

Fermentation

Inertization

Drinking water production

With its international explosion protection approvals, such as ATEX and IECEx, the Memosens COS81D...

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Memosens COS81D measures oxygen in applications with high demands to sterility and hygiene such as:

Fermentation

Inertization

Drinking water production

With its international explosion protection approvals, such as ATEX and IECEx, the Memosens COS81D oxygen sensor is suitable for hazardous area use.

A pharma certificate of compliance with sensor serial number specified is available.

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Features and specifications

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Details

Measuring principle

Sensor Oxygen
Application

Process control in enzyme production, control of culture growth, biotechnology, food industry, general process applications
Installation

Standard process connection Pg 13.5
Installation in standard pH assemblies possible
Characteristic

Hygienic, optical sensor for stable oxygen measurement over multiple sterilization cycles
Measurement possible in still water
Measurement range

0.004 to 30 mg/l
0.05 to 330 %SAT
0.1 to 700 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

Optical System, stainless steel
Material

Sensor shaft: stainless steel 1.4435
Process seal: FKM (USP <87>, <88> Class VI and FDA)
Seal/O-rings: EPDM, FFKM (USP <87>, <88> Class VI and FDA)
Dimension

Diameter: 12 mm (0.47 inch)
Shaft length: 120, 220, 360 and 420 mm
(4.72, 8.66, 14.2 and 16.5 inch)
Process temperature

0 to 140 °C
(32 to 284 °F)
Process pressure

0.02 to 13 bar abs
(0 to 190 psi)
Temperature sensor

Pt1000 (Class A according to DIN IEC 60751)
Connection

Memosens-connection head
Additional certifications

Material certification 3.1
ASME BPE-2016
Regulation (EC) No. 1935/2004

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Documents / Manuals / Software

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Memosens COS81D Technical Information
Hygienic, optical sensor for measuring oxygen

Technical Information (TI)
Memosens COS81D Operating Instructions
Hygienic, optical sensor for measuring oxygen

Operating Instruction (BA)
Memosens COS81D Brief Operating Instructions
Optical sensor with Memosens technology for dissolved oxygen measurement

Short Instruction (KA)

04/18

German , English
COV81 Installation Instructions
Maintenance kit for COS81D

Installation Instructions (EA)
Case study über den Einsatz von Memosens COS81D zur Messung von gelöstem Sauerstoff in einer Goldmine
Case study über den Einsatz von Memosens COS81D zur Messung
von gelöstem Sauerstoff in einer Goldmine

Case Studies (CS)

06/19

German
Case study on the use of Memosens COS81D for dissolved oxygen measurement in a gold mine
Case study on the use of Memosens COS81D for dissolved oxygen
measurement in a
gold mine

Case Studies (CS)

06/19

English
Whitepaper: Reproduzierbare Messwerte vom Labor bis zum Prozess
Whitepaper über digitale pH- und DO-Sensoren in der
Biotechnologiebranche

Case Studies (CS)

05/19

German
White Paper Measuring consistency from lab to process
Whitepaper on digital pH and DO sensors in the biotechnology industry

Case Studies (CS)

05/19

English
Oxygen measurement in an inertisation plant
Oxygen measurement in an inertisation plant: Memosens COS81D increases
process safety and reduces costs

Case Studies (CS)

03/20

German
Oxygen measurement in fermenters and bioreactors
Memosens COS81D for guaranteed quality and yield

Innovations (IN)

08/17

English
Mesure de l'oxygène dans les fermenteurs et les bioréacteurs
Memosens COS81D pour une qualité et un rendement garantis

Innovations (IN)

08/17

fr
Sauerstoffmessung in Fermentern und Bioreaktoren
Sichern Sie Qualität und Ausbeute mit dem Memosens COS81D

Innovations (IN)

08/17

German
OxyMax H
Product Code: COS81D-
Declaration Number: HE_00907_01.17

Manufacturer Declaration

German , English
OxyMax H
Product Code: COS81D-
Declaration Number: HE_00390_03.16
Manufacturer Specification: Food hygiene, 1935/2004

Manufacturer Declaration

English
OxyMax H
Product Code: COS81D-
Declaration Number: HE_00885_02.17
Manufacturer Specification: RoHS

Manufacturer Declaration

Chinese
OxyMax H
Product Code: COS81D-
Declaration Number: FDA_00206_01.19

FDA Declaration

German , English
OxyMax H
Product Code: COS81D-
Declaration Number: FDA_00205_01.19

FDA Declaration

German , English
OxyMax H
Product Code: COS81D-
Declaration Number: EC_00469_03.16

EU Declaration

German , English , fr
OxyMax H
Product Code: COS81D-
Declaration Number: EC_00577_03.17

EU Declaration

German , English , fr
Viomax, UV, Turbimax, TURBIDITY AND TOTAL SUSPENDED SOLIDS, TOCII, Stip-Scan, Stamolys, SPECTROMETER, OxyMax W, OxyMax H, New Analyzer Platform, Liquistation M, Liquiport, Isemax, Cell growth, Absorbance
Product Code: CAM74-, CAS40D-, CAS51D-, CAS74-, CAS80E-, CKF50-, CKI50-, COS22D-, COS31-, COS41-, COS51D-, COS61-, COS61D-, COS81D-, CSF48-, CSP44-, CUS50D-, CUS51D-, CUS52D-, CVF52-, CVI52-, OUSAF11-, OUSAF12-, OUSAF22-, OUSAF46-, OUSBT66-, OUSTF10-, CA70SI-, CA71AL-, CA71AM-, CA71CL-, CA71CR-, CA71CU-, CA71FE-, CA71HA-, CA71HY-, CA71MN-, CA71NO-, CA71PH-, CA71SI-, CA72TOC-, CA76NA-, CA80AL-, CA80AM-, CA80COD-, CA80CR-, CA80FE-, CA80HA-, CA80MN-, CA80NO-, CA80PH-, CA80SI-, CA80TN-, CA80TP-
Approval Number: EAEC RU D-DE.AD07.B.01362/19

Miscellaneous

Russian
Viomax, UV, Turbimax, TURBIDITY AND TOTAL SUSPENDED SOLIDS, TOCII, Stip-Scan, Stamolys, SPECTROMETER, OxyMax W, OxyMax H, New Analyzer Platform, Liquistation M, Liquiport, Isemax, Cell growth, Absorbance
Product Code: CAS40D-, CAS51D-, CAS74-, CAS80E-, CKF50-, CKI50-, COS22D-, COS31-, COS41-, COS51D-, COS61-, COS61D-, COS81D-, CSF48-, CSP44-, CUS50D-, CUS51D-, CUS52D-, CVF52-, CVI52-, OUSAF11-, OUSAF12-, OUSAF21-, OUSAF22-, OUSAF46-, OUSBT66-, OUSTF10-, CAM74-, CA71AL-, CA71AM-, CA71CL-, CA71COD-, CA71CR-, CA71CU-, CA71FE-, CA71HA-, CA71HY-, CA71MN-, CA71NO-, CA71PH-, CA71SI-, CA72TOC-, CA76NA-, CA80AL-, CA80AM-, CA80COD-, CA80CR-, CA80FE-, CA80HA-, CA80MN-, CA80NO-, CA80PH-, CA80SI-, CA80TN-, CA80TP-
Region/Country: Russia (Declaration of Conformity)
Approval Number: EAEC D-DE.AD07.B.01363/19

Miscellaneous

Russian
InduMax P, Liquiline M, Memocheck, Memosens, OrbiPac, OrbiSint, OxyMax H
Product Code: CPS71D-, CPS71-, CPS491D-, CPS491-, CPS471D-, CPS471-, CPS441D-, CPS441-, CPS42D-, CPS42-, CPS41D-, CPS41-, CPS171D-, CPS72-, CPS72D-, CPS76D-, CPS91-, CPS91D-, CPS92-, CPS92D-, CPS96D-, CTS1-, CYK10-, CYP01D-, CYP02D-, CYP03D-, CLS12-, CLS13-, CLS15-, CLS15D-, CLS16-, CLS16D-, CLS21-, CLS21D-, CLS50-, CLS50D-, CLS54-, CLS82D-, CM42-, CPS16D-, CPS13-, CPS12D-, CPS12-, CPS11D-, CPS11-, CPF82D-, CPF82-, CPF81D-, CPF81-, COS51D-, COS22D-, COS21D-, COS81D-
Region/Country: Canada, USA
Approval Agency: CSA

Explosion Protection

English
TopHit, OxyMax W, OxyMax H, OrbiSint, OrbiPore, Messkabel, Memosens, Memocheck, ConduMax W, ConduMax H, Ceramax, CeraLiquid, CeraGel
Product Code: CYP02D-, CYP01D-, CYK20-, CYK10-, CPS96D-, CPS92D-, CPS91D-, CPS76D-, CPS72D-, CPS71D-, CPS491D-, CPS471D-, CPS441D-, CPS42D-, CPS41D-, CPS341D-, CPS171D-, CPS16D-, CPS12D-, CPS11D-, COS81D-, COS51D-, COS22D-, CLS82D-, CLS21D-, CLS16D-, CLS15D-
Region/Country: International (IECEx)
Approval Agency: EXAM (DMT, BVS)

Explosion Protection

English
TopHit, OxyMax W, OxyMax H, OrbiSint, OrbiPore, OrbiPac, Memosens, Liquiline, InduMax P, ConduMax W, ConduMax H, Chloromax, CeraLiquid, CeraGel
Product Code: CPF81D-, CPF82D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS41D-, CPS42D-, CPS441D-, CPS471-, CPS471D-, CPS491-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, COS81D-, CCS120D-, CCS142D-, CCS50D-, CCS51D-, CLS15D-, CLS16D-, CLS21D-, CLS50D-, CLS82D-, CM442-, CM442R-, CM444-, CM444R-, CM448-, CM448R-, COS21D-, COS22D-, COS51D-
Region/Country: Canada, USA
Approval Agency: CSA

Explosion Protection

English
TopHit, OxyMax W, OxyMax H, OrbiSint, OrbiPore, Memosens, ConduMax W, ConduMax H, Ceramax, CeraLiquid, CeraGel
Product Code: CPS96D-, CPS92D-, CPS91D-, CPS76D-, CPS72D-, CPS71D-, CPS491D-, CPS471D-, CPS441D-, CPS42D-, CPS41D-, CPS341D-, CPS171D-, CPS16D-, CPS12D-, CPS11D-, COS81D-, COS51D-, COS22D-, CLS82D-, CLS21D-, CLS16D-, CLS15D-
Region/Country: South Korea
Approval Agency: KTL
Protection: Ex ia IIC T6...T3

Explosion Protection
OxyMax W, OxyMax H, OrbiSint, OrbiPore, Messkabel, Memosens, Memocheck, ConduMax W, ConduMax H, Ceramax, CeraLiquid, CeraGel
Product Code: CYP02D-, CYP01D-, CYK20-, CYK10-, CPS92D-, CPS91D-, CPS72D-, CPS71D-, CPS491D-, CPS471D-, CPS441D-, CPS42D-, CPS41D-, CPS341D-, CPS171D-, CPS12D-, CPS11D-, COS81D-, COS51D-, COS22D-, COS21D-, CLS82D-, CLS21D-, CLS16D-, CLS15D-
Region/Country: Europe (ATEX)
Approval Agency: EXAM (DMT, BVS)

Explosion Protection

English
OxyMax H
Product Code: COS81D-
Region/Country: China
Approval Agency: NEPSI

Explosion Protection

English
TopHit, OxyMax W, OxyMax H, OrbiSint, OrbiPore, Messkabel, Memosens, Memocheck, ConduMax W, ConduMax H, Ceramax, CeraLiquid, CeraGel
Product Code: CYP02D-, CYP01D-, CYK20-, CYK10-, CPS96D-, CPS92D-, CPS91D-, CPS76D-, CPS72D-, CPS71D-, CPS491D-, CPS471D-, CPS441D-, CPS42D-, CLS15D-, CLS16D-, CLS21D-, CLS82D-, COS22D-, COS51D-, COS81D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS341D-, CPS41D-
Region/Country: International (IECEx)
Approval Agency: EXAM (DMT, BVS)

Explosion Protection

English
OxyMax H
Product Code: COS81D-
Region/Country: Europe
Approval Agency: TU München

Hygienic Equipment

English
OxyMax H
Product Code: COS81D-
Region/Country: Europe
Approval Agency: TU München

Hygienic Equipment

German
OxyMax H
Product Code: COS81D-
Region/Country: Canada (CRN)
Approval Agency: CRN

Pressure Equipment

English
Viomax, Turbimax, TopHit, OxyMax W, OxyMax H, OrbiSint, OrbiPore, OrbiPac, Memosens, Liquiline M, Liquiline, Isemax, InduMax P, InduMax H, ConduMax W, ConduMax H, Chloromax, Ceramax, CeraLiquid, CeraGel
Product Code: CPS47D-, CPS471D-, CPS441D-, CPS42D-, CPS41E-, CPS41D-, CPS341D-, CPS31D-, CPS171D-, CPS16D-, CPS12E-, CPS12D-, CPS11E-, CPS11D-, CPS491D-, CPS71D-, CPS71E-, CPS72D-, CPS76D-, CPS77D-, CPS91D-, CPS91E-, CPS92D-, CPS96D-, CPS97D-, CUS50D-, CUS51D-, CUS52D-, CAS40D-, CCS120D-, CCS142D-, CCS50D-, CCS51D-, CLS15D-, CLS15E-, CLS16D-, CLS16E-, CLS21D-, CLS21E-, CLS50D-, CLS54D-, CLS82D-, CLS82E-, CM14-, CM442-, CM442R-, CM444-, CM444R-, CM448-, CM448R-, COS22D-, COS51D-, COS61D-, COS81D-, CPF81D-, CPF82D-
Region/Country: Russia
Approval Agency: Rosstandart
Approval Number: OC.C.31.004.A NO 54218/1

Metrology

Russian
Turbimax, TopHit, OxyMax W, OxyMax H, OrbiSint, OrbiPore, OrbiPac, New Analyzer Platform, Memosens, InduMax P, InduMax H, ConduMax W, ConduMax H, Chloromax, Ceramax, CeraLiquid, CeraGel
Product Code: CPS171D-, CPS31D-, CPS341D-, CPS41D-, CPS41E-, CPS42D-, CPS441D-, CPS471D-, CPS47D-, CPS491D-, CPS71D-, CPS71E-, CPS72D-, CPS76D-, CPS77D-, CPS91D-, CPS91E-, CPS92D-, CPS96D-, CPS97D-, CUS50D-, CUS51D-, CUS52D-, CA80HA-, CA80SI-, CCS120D-, CCS142D-, CCS50D-, CCS51D-, CLS15D-, CLS16D-, CLS21D-, CLS50D-, CLS54D-, CLS82D-, COS22D-, COS51D-, COS61D-, COS81D-, CPF81D-, CPF82D-, CPS11D-, CPS11E-, CPS12D-, CPS12E-, CPS16D-
Region/Country: Russia
Approval Number: OC.C.31.004.A NO 75181

Metrology

Russian
Viomax, Turbimax, TopHit, Sample Preparations, OxyMax W, OxyMax H, OrbiSint, OrbiPore, OrbiPac, OEM, New Analyzer Platform, Memosens, InduMax P, InduMax H, ConduMax W, ConduMax H, Chloromax, Ceramax, CeraLiquid, CeraGel
Product Code: CPS16D-, CPS171D-, CPS31D-, CPS341D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CUS50D-, CUS52D-, OCCS50D-, OCUS51D-, CPS12D-, CPS11D-, CPF82D-, CPF81D-, COS81D-, COS61D-, COS51D-, COS22D-, CLS82D-, CLS54D-, CLS50D-, CLS21D-, CLS16D-, CLS15D-, CCS142D-, CAT860-, CAT820-, CAT810-, CAS51D-, CA80AL-
Region/Country: Russia
Approval Agency: Rosstandart
Approval Number: DE.C.31.004.A NO 70194

Metrology

Russian
Turbimax, OxyMax H, OrbiSint, OrbiPac, Messkabel, Memosens, Liquiline M, Liquiline, InduMax P, ConduMax W
Product Code: CYK10-, CUS52D-, CUS50D-, CPS12D-, CPS11D-, CPF81D-, COS81D-, CM82-, CM72-, CLS82D-, CLS50D-, CLS21D-, CCS55D-, CCS51D-, CCS50D-
Region/Country: International
Approval Agency: DNVGL

Marine

English
Turbimax, OxyMax H, OrbiSint, OrbiPac, Messkabel, Memosens, Liquiline M, Liquiline, InduMax P, ConduMax W
Product Code: CYK10-, CUS52D-, CUS50D-, CPS12D-, CPS11D-, CPF81D-, COS81D-, CM82-, CM72-, CLS82D-, CLS50D-, CLS21D-, CCS55D-, CCS51D-, CCS50D-
Region/Country: International
Approval Agency: ABS

Marine

English

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Accessories / Spare parts

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Order code

Specification

- Order code COV81-
  
  Maintenance kit Memosens COV81
  
  service kit for Memosens COS81D contains optical cap, o-rings and further material for maintenance of COS81D
  
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- Order code COY8-
  
  Zero-point gel COY8
  
  Zero 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
  
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- Order code CYK11-
  
  Measuring cable CYK11 Memosens
  
  Extension cable, Application: digital fixed cable sensors respectively CYK10. Operating temperature range: -30...90oC
  
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Digital oxygen sensor
Memosens COS81D