OxyFerm FDA VP

The OxyFerm FDA VP is an electrochemical oxygen sensor suited for applications with high demands for hygiene, e.g. in the pharmaceutical industry, in biotechnology, and in food & beverage production.

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  • Dissolved Oxygen Sensor OxyFerm FDA VP

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OxyFerm FDA VP Details

OxyFerm FDA VP is an electrochemical polarographic dissolved oxygen (DO) sensor specifically designed for applications with high demands for hygiene in the pharmaceutical, biotechnology, and food & beverage industries. Building on Hamilton's proven electrochemical DO sensor technology, OxyFerm FDA VP provides reliable dissolved oxygen measurements across a wide measuring range while meeting the requirements of hygienic production processes.

The sensor is equipped with a specially designed FDA-approved membrane with a rounded geometry that helps prevent gas bubble accumulation and ensures reliable measurement performance in sterile process environments. Its robust construction withstands steam sterilization, autoclaving, and CIP cleaning, supporting long-term operation under demanding hygienic process conditions.

OxyFerm FDA VP offers increased installation flexibility through a wide range of electrical connectors, process mounting options, and optional accessories. The traditional nanoamp (nA) output enables compatibility with a broad range of commercially available transmitters and process control systems.

Combining hygienic design, robust construction, and reliable electrochemical measurement technology, OxyFerm FDA provides a dependable solution for dissolved oxygen monitoring in sterile and hygienic process applications.

Common applications Water, Energy, & Environment, Power Generation, Agri-Food and Beverage, Brewing, Winemaking

Ensure hygienic compliance with FDA-approved membrane.

Withstand harsh cleaning processes like CIP, SIP, and autoclaving.

Easily integrate into existing systems with multiple connector options.

Hygienic Design

  • Built for pharmaceutical, biotech, and food & beverage applications.
  • Maintains product safety with high hygiene standards.

Versatile Integration

  • Available in 12 mm and 25 mm (XL) shaft diameters.
    Compatible with various electrical connectors and mounting options.
Scientific Citations

  • I could not be more pleased with my experience with Hamilton!

    My company has been using Hamilton probes for years and have always been happy with their performance! The team is always very helpful in trouble shooting issues and answering any questions that we may have about our probes. Overall, I could not be more pleased with my experience with Hamilton!

    Abigail Mann
    Bioprocessing Fermentation Associate at Heliae Development

  • Hamilton pH sensors are characterized by their high measuring accuracy and long service life.

    Hamilton pH sensors are characterized by their high measuring accuracy and long service life. This contributes significantly to the control of our processes. They also help us to guarantee the required product quality and to further optimize processes.

    Felix Colin
    Bioprocess Engineer, AB Enzymes GmbH

OxyFerm FDA VP Specifications

Print
Process Connection PG13,5
Sensor Family OxyFerm FDA
Wetted Parts Stainless Steel 1.4435
EPDM (Ethylene propylene elastomer)
FKM (Fluorocarbon Elastomer)
VMQ (Silicone elastomer)
See compliance details in Material Specification document
Electrical Connector VP6
Measuring Range 10 ppb to 40 ppm (DO) or 0.2 to 1000 mbar (pO₂)
Electrolyte Oxylyte
Drift at Room Temperature < 1 % per week
Membrane Cap FDA
Oxygen Consumption Ca. 20 ng/h in air at 25 °C
Temperature Sensor NTC 22 kOhm
Current in Air at 25 °C 40 - 80 nA
Surface Quality of Steel Ra < 0.4 µm (N5)
Electrode system Silver platinum combination
Polarization Voltage and Time -670 ± 50 mV, ≥ 2 hours
Serial Number Yes
Response Time t98% < 60 s at 25 °C
Certificate Material and Performance Test Certificate
ATEX Approval II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb; II 1/2 D ia IIIC T x °C Da/Db
IECEx Approval II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb; II 1/2 D ia IIIC T x °C Da/Db
Diameter 12 mm
Autoclavable Yes
Steam Sterilizable Yes
CIP Yes
Operating Temperature Range 0 to 130 °C
Pressure Range bar g 0 to 4 bar
Max. CO₂ Partial Pressure 0.01 bar
Required Flow ≥ 0.03 m/s

Compatibility with Hamilton Devices

Explore the limitless possibilities of Hamilton products.

OxyFerm FDA VP Resources

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Sensor Output signal diagram

Article

Sensor Output Signal

As polarographic sensors generate an electrical signal, this article explores the math used to determine the relationship between oxygen and current output.
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Article

Storage & Shelf Life - Polarographic Dissolved Oxygen Sensors

This brief article discusses the best practices for proper storage of polarographic sensors along with answering questions regarding shelf life.
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Article

Glossary of Sensor & Biopharma Acronyms & Abbreviations

Acronyms and abbreviations are commonly used with process analytics measurements found in the biopharma industry. This glossary is an attempt to de-code some of the more frequently used acronyms.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

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FAQ

Does salinity impact my DO measurement?

Yes, salinity of a solution generally has an inverse relationship to the dissolved oxygen content within the solution. Arc sensors can have the salinity value of the liquid added in to correct the measurement by using ArcAir.
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FAQ

Does temperature impact my oxygen measurement?

Yes, in a closed system, gas phase temperature is directly proportional to pressure and therefore measured oxygen content. In solution, temperature is inversely proportional to dissolved oxygen content.
Two overlapping green speech bubbles with a question mark on a dark navy circular background

FAQ

When should I replace the membrane and electrolyte in my polarographic DO sensor?

The frequency of membrane and electrolyte replacement is process specific and will vary. Routine calibration before each run can identify a high nA current at the nitrogen zero point or low nA current in air, indicating a need to replace the membrane and electrolyte. Click to learn more about membrane replacement.
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Preventative maintenance and regular service contracts. Schedule on-site service dates to ensure your sensors are properly maintained and your process is optimized.

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