Voorgestelde zoekopdrachten
  • stopper set
  • weegschaal
  • ph meter
  • ind570
  • ics425
Alle categorieën
  • Alle categorieën
  • Producten
  • Koop online
  • Ondersteuning
  • Expertise
  • Evenementen & Webinars
  • Overige
Filter
Nederlands
Home Process Analytics Polarographic Dissolved Oxygen Sensors
Home Process Analytics Polarographic Dissolved Oxygen Sensors

Polarographic Dissolved Oxygen Sensors

Reliable Electrochemical DO Probes for In Situ Monitoring

Bel ons voor een offerte
Polarographic dissolved oxygen sensors utilize an oxygen permeable membrane that enables a chemical reduction reaction which produces an electrical signal to capture the DO concentration value. These electrochemical DO sensors offer highly accurate measurements even at the low oxygen levels in various industrial environments. Select METTLER TOLEDO polarographic DO probes have polarization times as low as one hour, simplifying maintenance and polarographic DO sensor inventory management.
View Results ()
Filter ()

Voeg 1 of 2 andere producten toe om te vergelijken

Gerelateerde informatie

Guide to Accurate Dissolved Oxygen Measurements

This guide covers good operating procedures and includes advice for maintaining in-line pH and dissolved oxygen (DO) sensors to ensure high measurement reliability at all times.

Family Flyer Dissolved Oxygen Measuring Systems

The high performance, inline oxygen sensors from METTLER TOLEDO stand the test of time under challenging operating conditions, whether in the biotechnology, pharmaceutical, brewing or food and beverage industry.

Can a Sensor Be Used for the Next Batch?

Cutting-edge measurement systems that utilize intelligent sensors that learn from your process, take all guesswork out of sensor replacement or maintenance decisions. Further, this technology also reduces the possibility of human-error, resulting in increased accuracy and reliability.

DO Measurement in Primary and Secondary Wastewater Treatment

Biological processes are being more and more used to treat wastewater effluents, instead of chemical and mechanical processes. Industries using a biological treatment are those whose wastewaters are rich in organic compounds (which are used as nutrients by the microorganisms).

Minimize DO Sensor Maintenance

This case study explores how EDP Group, which operates one of Brazil's largest power plants, needed to minimize DO sensor maintenance within the plant. Switching from polarographic dissolved oxygen sensors to optical sensors equipped with ISM predictive diagnostics enabled a massive drop in DO probe maintenance.

Process Analytics Product Catalog

Process Analytics Product Catalog

The Process Analytics Catalog provides a comprehensive overview of solutions for analytical measurements in liquid process applications, pure water monitoring and gas-phase measurement. Parameters covered include pH, dissolved oxygen, dissolved CO2, conductivity, turbidity, and total organic carbon.

Profiteer van ondersteuning op afstand en zorg voor topprestaties

Profiteer van ondersteuning op afstand en zorg voor topprestaties

Profiteer van ondersteuning op afstand en zorg voor topprestaties

  • Snelle interventie en volledige veiligheid
  • Klant ter plaatse met mobiel apparaat
  • Technicus op afstand op computer
Of bel ons
+32 3 250 15 70
Bel Service

Explore our Services - Tailored to Fit your Equipment

We support and service your measurement equipment through its entire life-cycle, from installation to preventive maintenance and calibration to equipment repair.

Uptime. Ondersteuning & Reparatie

Performance. Onderhoud & Optimalisatie

Compliance. Kalibratie & Kwaliteit

Expertise. Training & Consulting

What is a polarographic dissolved oxygen sensor?

Polarographic dissolved oxygen sensors utilize an oxygen permeable membrane that enables a chemical reduction reaction which produces an electrical signal to capture the DO concentration value by compensating for the changing solubility of oxygen with temperature. These electrochemical DO sensors offer highly accurate measurements at the lowest oxygen levels (down to 0.1 ppb) in pharmaceutical, food and beverage, chemical, microelectronics, pure water and waste water applications. Easy maintenance is ensured with a long-lasting membrane to reduce costs and support production in your process. Polarographic DO probes also have Intelligent Sensor Management (ISM) predictive diagnostics available to provide all of the necessary information for deciding if the sensor is good for the next batch.

Which METTLER TOLEDO polarographic DO sensors are available?

METTLER TOLEDO offers a range of polarographic dissolved oxygen sensors fully suitable for various industrial applications. The InPro 6800/6850i provide maximum accuracy for vessels with limited space or in containers with smaller volumes. These electrochemical DO sensors are available with 12 or 25 mm diameter bodies in durable 316L stainless steel and with PTFE/silicone membranes. The InPro 6900(i)/6950i offer the same advanced features as the InPro 6800, with the additional benefit of being able to measure trace oxygen concentrations. In particular, the InPro 6950i sensor offers excellent accuracy at the lowest oxygen levels due to the built-in 4-electrode measurement system. For pure water monitoring, the High Performance DO Probe from METTLER TOLEDO Thornton is a polarographic DO probe that is available in analog or ISM technology and meets the fast response time and accuracy levels needed for microelectronics UPW, power and pharmaceutical water systems.

What is the difference between a polarographic DO sensor and an optical DO sensor?

Polarographic dissolved oxygen sensors are membrane based and use an electrochemical technology. Oxygen diffuses through the membrane and is reduced at a cathode that is held at a defined potential. The measured reduction current is proportional to the partial pressure of oxygen in the media. Optical DO sensors utilize fluorescence quenching technology, which is the result of an energy transfer between a fluorescing chromophore and oxygen molecules.

What are the benefits of ISM technology on a polarographic DO sensor?

With Intelligent Sensor Management (ISM) technology, installation, handling and maintenance of the polarographic DO sensor system improves significantly. The real-time electrochemical DO sensor diagnostics provide all of the necessary information for deciding if the sensor is good for the next batch. Predictive maintenance tools for pre-batch diagnostics support production planning and help avoid outages during production. With these features, efficient and safe operation of the polarographic DO probe is assured. Plug and Measure ISM technology allows you to calibrate the polarographic DO sensor away from the process and then quickly integrate it where needed. This ensures fast sensor start-up and commissioning of a measurement point.