Fermentation Dissolved Oxygen Sensor (Polarographic type)
Sper Scientific

Fermentation Dissolved Oxygen Sensor (Polarographic type)


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The Fermentation Dissolved Oxygen Sensor is designed for oxygen measurement in small-volume vessels and installations with limited space.

Its 316L stainless steel body and VP connector support use in hygienic fermentation processes requiring CIP, in-situ steam sterilization and high-pressure autoclaving.

A durable membrane cap provides resistance to high temperatures and pressures, including steam sterilization at 120–130°C. Designed to withstand more than 40 fermentation batches, the HDO100 offers multiple immersion depths for different vessel configurations.

  • Withstands steam sterilization at 120–130°C
  • Membrane cap designed for high-temperature and high-pressure resistance
  • 316L stainless steel body for durability and hygienic applications
  • Suitable for CIP, in-situ steam sterilization and autoclaving
  • Designed to withstand more than 40 fermentation batches
  • VP connector and PG13.5 mounting thread
  • Multiple immersion depths available
  • IP68 water resistance
Measurement Range 0–20 mg/L; 0–200%
Resolution 0.01 mg/L
Accuracy <±0.3 mg/L
Zero Error <0.1 mg/L
Temperature Range 0–130°C
Pressure Range 0–5 bar
Temperature Probe NTC22K, PT1000 and other options
Output >60 nA
Response Time <60 seconds
Calibration Zero calibration/full-scale calibration
Mounting Thread PG13.5
Body Material 316L stainless steel
Immersion Depth Options 70, 120, 150, 225 or 325 mm
Connector VP
Protection Level IP68 water resistance

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