Dissolved Oxygen Sensor
Measurements of dissolved oxygen (DO2) in biotechnological processes is a basis for process optimization and maximization of the product yield. A microorganism or cell responds to the oxygen concentration in regulating its overall metabolism. Therefore, knowledge of the DO2 concentration and its proper control during the process are of great importance. The AppliSens DO2-sensor is specifically designed for long-term, stable and accurate measurements in bioprocesses.
The DO2-sensor has a titanium membrane module to minimize the measurement drift. The autoclavable polarization module allows polarizing of your DO2-sensor while autoclaving your bioreactor system, resulting in a reduced start-up time of your cultivation.
Features
Titanium and PEEK materials guarantees low drift
cGMP compatible by using FDA approved materials
Electropolished surface roughness finish of 0.4 μm eases cleaning
Short response time
Withstands repeated SIP and CIP cycles
Standardized PG 13.5 connection guarantees interchangeability with other bioreactor brands
Specifications | |
|---|---|
Optimum polarization potential | – 800 mV @ 40°C |
Polarization potential amplifier | – 675 mV |
Max. pressure where linearity is guaranteed | 4 bar |
Max. sterilization temperatur
e | 135°C |
Minimum polarization time | 30 minutes |
Minimum polarization time after autoclaving | 4h |
Optimum polarization time after autoclaving | Overnight |
Polarization current | Air / 40 °C / 1.013 bar / 100 % RH, (65 – 98) nA |
Response time gas phase 40 °C | t (90%), (10 – 20) s |
Drift between 7 days and 30 days | < 0.05 % / day |
