OxyFerm FDA Traditional DO Sensors
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
Hamilton Transmitter Series for traditional pH, ORP, conductivity and dissolved oxygen measurements combines ease of use and reliability.
Traditional Sensor Cables
Cables for traditional pH, ORP, and dissolved oxygen sensors offer a variety of connectors and cable lengths to match your application.
Polarographic Oxygen Maintenance
Kits, electrolytes, and related parts to keep your OxyFerm or OxyGold dissolved oxygen sensor working properly.
Resources
Hamilton's knowledge base provides a range of explanatory articles, frequently asked questions, and document downloads.
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Brochure - BioPharma
Innovative solutions for process analytics in biotechnological and pharmaceutical industries. -
Technical Manual - Dissolved Oxygen Sensor Shelf Life Information
A simple, one page guide to storing polarographic and optical dissolved oxygen sensors. -
Material Specification - O-ring EPDM
Material specification of O-ring EPDM
Featured 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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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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Cathode Replacement on Polarographic DO Sensors
This quick guide discusses how to replace the cathode on OxyFerm and OxyGold polarographic DO sensors. -
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. -
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.
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