Digital oxygen sensor
Memosens COS51E replace COS51D

Memosens 2.0 amperometric oxygen sensor for the wastewater industry and utilities

Field of application

Memosens COS51E is perfectly suited for all wastewater and utility applications including hazardous areas. The sensor is highly accurate and moisture-resistant ensuring the safety of your processes. COS51E features Memosens 2.0 digital technology. It is able to store more calibration and process data and thus provides the perfect basis for predictive maintenance and IIoT services. Designed to be low-maintenance with a long operating life, the sensor offers outstanding value for money.

Benefits

• Wide measuring range: The amperometric measuring principle and cathode design make the sensor suitable for all wastewater applications from industrial to municipal plants.

• High accuracy: Thanks to its amperometric, three-electrode design, the sensor provides long-term stable measurement with low drift.

• Increased plant availability: Memosens technology and Liquiline transmitters enable plug & play for fast commissioning and sensor exchange.

• Non-contact, inductive signal transmission ensures maximum process integrity.

• Memosens 2.0 digital technology makes the sensor ready for predictive maintenance and IIoT services since it offers extended storage of calibration and process data.

• Measuring principle

  Amperometric oxygen measurement

• Application

  Typical applications are:
  - Wastewater treatment plants: oxygen control in aeration basin, process water treatment and monitoring
  .
  - Water plants: status monitoring of drinking water, water quality monitoring in rivers, lakes or seas
  .
  - Utilities of all industries: Oxygen control in biological treatment, process water treatment and monitoring.

• Characteristic

  Digital amperometric 3-electrode longterm-stable sensor to measure dissolved oxygen

• Measurement range

  0.01 to 100 mg/l
  0.00 to 1000 %SAT
  0 to 2000 hPa

• Measuring principle

  Measuring principle

• Design

  Design

• Material

  Sensor shaft: POM
  Membrane cap: POM
  Working electrode: Gold
  Counter and reference electrode: silver/silver halide
  Membrane: ETFE (COS51-TN), FEP (COS51-TF)

• Dimension

  Diameter: 40mm (1.57 inch)
  Shaft length: 146 mm (5.74 inch)

• Process temperature

  -5 to 60 °C
  (20 to 140 °F)

• Process pressure

  Max. 5 bar abs
  (Max. 72.5 psi abs)

• Temperature sensor

  NTC 30k

• Ex certification

  With ATEX, IECEx, CSA C/US, NEPSI, JapanEx and INMETRO approval for use in Zone 0, Zone 1 and Zone 2 hazardous areas. With CSA
  C/US approval also in Class I Division 1 hazardous areas in the
  Gas Ex area. Additionally suitable for Class I Division 2.

• Connection

  Inductive, contactless connection head with Memosens 2.0 technology

• Ingress protection

  IP 68

COS51D-AS800 is replaced by COS51E-AA26TN