OxyFerm FDA VP 325

Part # 237543

The OxyFerm FDA VP 325 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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OxyFerm FDA VP Details

OxyFerm FDA VP sensors are an electrochemical oxygen sensor designed for processes with high demands for hygiene, including pharmaceutical, biotechnology, and food & beverage production. Equipped with a special rounded FDA-approved membrane to prevent gas bubble accumulation, the sensor boasts a robust construction compatible with steam sterilization, autoclaving, and CIP cleanings. This wide measuring range sensor provides reliable dissolved oxygen monitoring in challenging environments.

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 325 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
a-length 325 mm

Compatibility with Hamilton Devices

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OxyFerm FDA VP 325 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.

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Article

Cathode Replacement on Polarographic DO Sensors

This quick guide discusses how to replace the cathode on OxyFerm and OxyGold polarographic DO sensors.
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Article

Electrolyte & Membrane Replacement for Polarographic DO Sensors

This quick guide discusses how to replace the electrolyte and membrane on OxyFerm and OxyGold polarographic DO sensors.
Polarographic do sensor diagram

Article

What is a Polarographic Dissolved Oxygen Sensor?

This article discusses polarographic dissolved oxygen sensors. A polarographic sensor is commonly used to determine the dissolved oxygen concentration in a liquid.

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

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FAQ

Does carbon dioxide sparging impact my DO measurement?

CO2 sparging will not impact the DO measurement using an optical DO sensor. CO2 can impact traditional polarographic DO sensors over time thus more frequent electrolyte replacement may be needed.
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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

Do bubbles impact my DO measurement?

DO sensors should be installed away from spargers to minimize the impact of bubbles potentially causing an erratic signal. For ODO sensors, an H2 cap with a convex tip design can be used to mitigate bubble aggregation on the ODO cap.
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