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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.
| 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 | 
|---|---|
| Autoclavable | Yes | 
| CIP | Yes | 
| Current in Air at 25 °C | 40 - 80 nA | 
| Diameter | 12 mm | 
| Drift at Room Temperature | < 1 % per week | 
| Electrical Connector | T82/D4 | 
| Electrode system | Silver platinum combination | 
| Electrolyte | Oxylyte | 
| 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 | 
| Maximum CO₂ Partial Pressure | 0.01 bar | 
| Measurement Principle | Electrochemical reduction of oxygen | 
| Measuring Range | 10 ppb to 40 ppm (DO) or 0.2 to 1000 mbar (pO₂) | 
| Membrane Cap | Optiflow FDA | 
| Operating Temperature Range | 0 to 130 °C | 
| Oxygen Consumption | Ca. 20 ng/h in air at 25 °C | 
| Parameter | DO (Electrochemical) | 
| Polarization Voltage and Time | -670 ± 50 mV, ≥ 2 hours | 
| Pressure Range | 0 to 4 bar | 
| Process Connection | PG13,5 | 
| Required Flow | ≥ 0.03 m/s | 
| Response Time t90% | < 60 s at 25 °C | 
| Sensor Family | OxyFerm FDA | 
| Sensor Output | Traditional: nA | 
| Serial Number | Yes | 
| Steam Sterilizable | Yes | 
| Surface Quality of Steel | Ra < 0.4 µm (N5) | 
| Temperature Sensor | NTC 22 kOhm | 
| Wetted Parts | Stainless Steel 1.4435 \nEPDM (Ethylene propylene elastomer) \nSilicone - FDA 21 CFR 177.2600 \nVMQ (Silicone elastomer) | 
| Length | 160 mm |