OxyFerm FDA Traditional DO Sensors
The OxyFerm FDA is an electrochemical oxygen sensor suited for applications with high demands for hygiene, e.g. in pharmaceutical industry, in biotechnology and in food & beverage production. It is available with 12 mm or 25 mm (XL) shaft diameter. The sensor is equipped with an FDA-approved membrane for use in hygienic processes. It withstands steam sterilization, autoclavation and CIP cleanings. OxyFerm FDA polarographic DO sensors provide a traditional nanoamp (nA) current output with multiple options for electrical connectors and process mounting connections.
Accessories for the OxyFerm FDA
Traditional Transmitters
Traditional Sensor Cables
Polarographic Oxygen Maintenance
Resources
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Catalog - Process Analytics
Download the Process Analytics sensor catalog to learn about the complete offering of Hamilton process sensors and accessories. -
Brochure - BioPharma
Innovative solutions for process analytics in biotechnological and pharmaceutical industries. -
Material Specification - O-ring EPDM
Material specification of O-ring EPDM
Does salinity impact my DO measurement?
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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. -
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. -
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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Comparing Optical To Polarographic Dissolved Oxygen Measurement
There is a clear trend in the market towards replacing polarographic with optical dissolved oxygen. When evaluating the switch to optical, engineers must consider if there will be any impact on the current process due to the change in measurement principle. -
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. -
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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