Forbes Marshall - Trusted Partners in Steam Engineering & Control Instrumentation
Forbes Marshall - Trusted Partners in Steam Engineering & Control Instrumentation

Oxyferm FDA VP XL

The Oxyferm series establishes a new standard in biotechnology with its sterilizable and autoclavable dissolved oxygen sensors. Engineered for fermentation, API, and pharmaceutical applications, these sensors provide excellent stability through numerous sterilization cycles with a fast response time and negligible flow-rate sensitivity.

Key Technical Specs:

  • Measuring Range: 10ppb to saturation; 0.1%-200% for air oxygen.
  • Operating Temperature: 0 – 130 °C.
  • Pressure: Max 4 bar.
  • Temperature Sensor: 22 k Ohm NTC
  • Sanitary design where the silicon membrane seals without a gap to the steel membrane body (no additional O-ring).
  • Replaceable internal measuring body with quick-fit assembly.
  • Shaft and membrane have their own distinct serial and melt numbers

Variants

Oxyferm VP 120 (HT237400)

12mm shaft DO sensor utilizing a VP connector

Oxyferm FDA 120 (HT237450)

12mm shaft version shipped with an extra FDA-compliant spare membrane body

Oxyferm XL 56 (HT237175-25)

25mm extra-large shaft diameter version

Frequently Asked Questions

Can Oxyferm sensors withstand repeated sterilisation?

Yes, they are designed to be fully sterilizable and autoclavable, maintaining excellent reading stability even after numerous cycles.

Can the sensor be mounted upside down?

Yes, upside-down insertion is possible for nearly empty containers when using the specially designed OXYLYTE USD electrolyte.

How do you replace the cathode on an Oxyferm sensor?

It has a simple quick-fit assembly—just pull to remove the old cathode assembly and insert the new one.

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