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O2 Sensor Stick SST-PSt3-US

Luer Lock Adapter with Sensor for Customized Integration

O2 Sensor Stick SST-PSt3-US

This Luer Lock adapter is equipped with a miniaturized O2 Sensor Spot type PSt3 (max. measurement range 0 - 100 % O2). A polymer optical fiber is attached to the Sensor Stick and connects it to an oxygen meter. This way continuous, non-invasive oxygen measurements can be performed. The O2 Sensor Stick can easily be integrated in customer specific flow-through cells or experimental set-ups via Luer connectors. The SST-PSt3-US is independent of flow velocity or electromagnetic fields and due to its small size it can be implemented in many set-ups where other oxygen measurement equipment simply does not fit.

  • Non-invasive oxygen measurements in a max. range of 0 - 100 % O2
  • Small size
  • Easy connection via Luer Lock
  • For customized integration & perfusion cell culture monitoring
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Applications

Online Measurement in Perfusion Systems

Beta-irradiated and pre-calibrated pH and DO flow-through sensors can be integrated into perfusion systems. This allows easy control of process parameters in perfusion reactors. Typically Luer connectors are used, though different sizes for larger or smaller flow rates are available.


Technical

SpecificationsGaseous & Dissolved O2Dissolved O2
*at 20 °C, 960 - 980 hPa; humidified gas mixture
**after customized calibration
***determined changing from 20.9 % oxygen gas to nitrogen 5.0
****determined changing from air saturated water to a freshly prepared 1 % sodium sulfite solution
Measurement range*Optimal: 0 - 50 % O2, 0 - 500 hPa
Max.**: 0 - 100 % O2, 0 - 1000 hPa
Optimal: 0 - 22.5 mg/L
Max.**: 0 - 45.0 mg/L
Limit of detection*0.03 % O2, 0.3 hPa0.020 mg/L
Resolution*1 % O2 ± 0.02 % O2
20.9 % O2 ± 0.2 % O2
0.4 mg/L ± 0.09 mg/L
9 mg/L ± 0.04 mg/L
Response time (t90)< 10 sec.***< 30 sec.****
Properties
CompatibilityAqueous solutions, ethanol, methanol
No cross-sensitivitypH 1 - 14, CO2, H2S, SO2, ionic species
Cross-sensitivityOrganic solvents, such as pure acetone, toluene, chloroform or methylene chloride
Chlorine gas
Cleaning procedure3 % H2O2, acidic agents (HCl, H2SO4) max. 4 - 5 %
Sterilization procedure***Irradiation
Ethylene oxide (EtO)
CalibrationSensor Sticks are pre-calibrated;
Two-point calibration in oxygen-free environment (nitrogen, sodium sulfite) and air saturated environment
Temperature range operationOptimal: 0 °C to + 40 °C
Max.: - 10 °C to + 70 °C
Temperature range storageOptimal: room temperature (+ 20 °C ± 5 °C)
Max.: 0 °C to + 70 °C
Storage stability5 years provided the sensor material is stored at room temperature in dry conditions and in the dark

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