OxyFerm XL 300

Part # 237174

The OxyFerm XL is a 25 mm polarographic DO sensor for hygienic applications in pharma, biotech, and food industries. It withstands SIP, CIP, and autoclaving, offering nanoamp output with various connector and mounting options.

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OxyFerm XL Details

The OxyFerm XL is a polarographic dissolved oxygen (DO) sensor designed for hygienic applications in the pharmaceutical, biotechnology, and food & beverage industries. With an extra-long shaft, these sensors are optimized for deep vessel integration and ensures reliable performance under steam sterilization, CIP, and autoclaving. They deliver a stable nanoamp (nA) current output and offers a variety of electrical connector and process mounting options.

Common applications Pharma & Biopharma, Biotechnology, Agri-Food and Beverage, Bioprocess Upstream, Brewing

Ensure hygiene compliance with robust electrochemical design.

Resist harsh cleaning processes for consistent performance.

Adapt easily to different installations with multiple connection options.

Hygienic Design

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

Engineered for Durability

  • Durable construction for long-term reliability

  • 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 XL 300 Specifications

Print
Process Connection G 1¼ inch (Ingold)
Sensor Family Oxyferm XL
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 T82/D4
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 Standard
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
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 25 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 262 mm
O-ring Position (OP) 7 to 63 mm
Response Time t98% 30 to 60 s at 25 °C, from air to nitrogen

OxyFerm XL 300 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

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.
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Article

Common Questions for Autoclave Sterilization of Sensors

This brief article examines common questions from end-users about best practices for autoclaving Hamilton sensors.
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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.

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

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FAQ

When should I calibrate my DO sensor?

The frequency of calibration will depend upon the duration of process runs and the accuracy required for process control. In bioreactor applications calibration can be performed before sterilization; however many customers choose to calibrate after sterilization as well.
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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.
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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.
Services
Installation Support

Installation, set-up, and calibration support directly on-site. Our field service team ensures your sensors and cables are installed and functioning correctly.

Qualification IQ/OQ

Support for the qualification of Hamilton equipment including complete documentation. Readying your process for GMP manufacturing activities.

Maintenance and Calibration Services

Preventative maintenance and regular service contracts. Schedule on-site service dates to ensure your sensors are properly maintained and your process is optimized.

On-Site Training

User trainings and on-site trainings for technicians. Tailored training ranging from basic operation to advanced calibration and maintenance.

Modular Service Contracts

Hamilton offers modular service contracts tailored to your requirements, featuring a basic module complemented by optional add-ons.

On-Site Service Diagnostics

Diagnosing and resolution of process system problems on-site. Finding the root cause and presenting a solution to fit your needs.

Application and Technical Support

Hamilton's Technical Support team is here to provide product trouble-shooting, repair, application support, virtual start-up support, and more.

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