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Oxygen Monitoring in Smallest Volumes of Gases or Liquids
Oxygen Microsensor Integrated in Metal Flow-Through Cell FTCM-PSt7
The FTCM-PSt7 is a stainless steel tee with integrated microsensor. It has connectors for 1/16” steel tubing. Its inner volume of 2.1 µL is extraordinarily small, so it is ideally suited for all applications where only small volumes are available. With the tapered sensor type and its fast response time of t90 < 3 sec. in gas and < 10 sec. in liquids, real-time oxygen monitoring can be performed. The integrated PSt7 type sensor has a measurement range of 0 – 100 % oxygen, and a detection limit of 0.03 % oxygen.
- Perfusion monitoring in smallest volumes
- High temporal resolution (t90 < 3 s)
- No consumption of oxygen
- Signal independent of flow velocity
- Measures in liquids as well as in the gas phase
Technical
| Specifications | Gaseous & Dissolved O2 | Dissolved O2 |
|---|---|---|
| *after two-point calibration as described in the manual | ||
| Measurement range | 0 – 100 % O2 0 – 1000 hPa | 0 – 45 mg/L 0 – 1400 µmol/L |
| Limit of detection | 0.03 % oxygen | 15 ppb |
| Resolution | ± 0.01 % O2 at 1 % O2 | ± 0.005 mg/L at 0.4mg/L ± 0.025 mg/L at 9.06 mg/L |
| Accuracy at + 20 °C* | ± 0.05 % O2 or ± 3 % rel. | |
| Measurement temperature range | from 0 to + 50 °C | |
| Response time (t90) | < 3 sec. (gas) | < 10 sec. (liquid) |
| Properties | ||
| Compatibility | Aqueous solutions, ethanol, methanol | |
| No cross-sensitivity | pH 1 – 14 | |
| Cross-sensitivity | Organic solvents, such as acetone, toluene, chloroform or methylene chloride | |
| Sterilization procedure | Ethylene oxide (EtO), recalibration recommended | |
| Cleaning procedure | 3 % H2O2 | |
| Calibration | Two-point calibration with oxygen-free environment (nitrogen, sodium sulfite) and air-saturated environment | |
| Storage stability | 60 months provided the sensor material is stored in the dark at room temperature | |
Related products
Resources
FAQs
How can I prepare the calibration solutions cal0 and cal100 for oxygen sensors?
How do I import data into excel from a text file containing measurement data?
How do I verify whether the oxygen sensor is giving correct readings (performance proof)?
How does an oxygen sensor work?
How does salinity affect the oxygen measurement?
How does temperature affect the oxygen measurement?
The Stern-Volmer-equation
What is the time of delivery?
Which substances can interfere with the optical O2, pH and CO2 measurements?
Manuals
Brochures
Software
PreSens Oxygen Calculator version 3.1.1 - Windows 7/8/10