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Digital oxygen sensor
Memosens COS81D

The Memosens COS81D optical oxygen sensor is available in 120 mm length. ©Endress+Hauser

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

The Memosens COS81D optical oxygen sensor is available in 220 mm length. ©Endress+Hauser

...220 mm length.

The sensor is designed according to ASME BPE and EHEDG. ©Endress+Hauser

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. ©Endress+Hauser

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. ©Endress+Hauser

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. ©Endress+Hauser

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. ©Endress+Hauser

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. ©Endress+Hauser

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

The sensor's position in a fermenter. ©Endress+Hauser

The sensor's position in a fermenter.

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.

  • The Memosens COS81D optical oxygen sensor is available in 120 mm length.
  • The Memosens COS81D optical oxygen sensor is available in 220 mm length.
  • The sensor is designed according to ASME BPE and EHEDG.
  • Memosens COS81D can be applied in the process and in the laboratory.
  • Memosens COS81D with c-shaped sensor cap. Use this cap for oxygen measurement in fermenters.
  • Memosens COS81D with u-shaped sensor cap. Use this cap for oxygen measurement in inertization.
  • Conveniently maintain and calibrate your COS81D sensor in the laboratory with Memobase Plus CYZ71D.
  • Install the precalibrated sensor in your process and your measurement is instantly ready.
  • The sensor's position in a fermenter.

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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  • Overzicht specificaties

    • Measurement range

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

    • Process temperature

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

    • Process pressure

      0.02 to 13 bar abs
      (0 to 190 psi)

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  • Voordelen

    • 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...

  • Toepassingsgebied

    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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Details

  • Meetprincipe

    Optical oxygen measurement

  • 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

Documenten / handleidingen / software

Accessoires / Spare parts

Nr
Order code
Specification
    • Order code COV81-

      Onderhoudskit COV81 voor Memosens COS81D

      Service kit voor Memosens COS81D bevat optische sensorkap, o-ringen en verdere documenten voor het onderhoud van COS81D.

    • Order code COY8-

      Zero-point gel COY8

      Nulpunt: Verificatie, kalibratie, afstelling, afstelling op het nulpunt van zuurstof en desinfectiesensoren ::Amperometrische en optische sensoren ::12, 25 en 40mm diameter ::Toepassing in het labo, in het veld

    • Order code CYK11-

      Verlengkabel CYK11 Memosens

      Memosens Verlengkabel Toepassing: tbv digitale sensoren met of zonder vaste kabel (CYK10) Temperatuur: -30...90°C

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