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Trace Oxygen Measurement in Pipes
Oxygen Probe Integrated in Metal Flow-Through Connector FTM-PSt6
An oxygen exchange window for trace oxygen measurement is integrated in a metal flow-through connector. The FTM can be integrated in pipes with o.d. 6 mm or other diameters using the respective adapters. The oxygen probe is very robust and long-term stable. It can be cleaned by CIP (Cleaning in place 2 % NaOH, + 80 °C) and also stands steam sterilization (+ 130 °C, 1.5 atm).
- Online oxygen measurement in perfusion systems
- No consumption of oxygen
- Signal independent of flow velocity
- Autoclavable, SIP (+ 130 °C, 1.5 atm) & CIP (2 % NaOH, + 80 °C)
- Polarization-free
- Long-term stability
Applications
In-line Oxygen Measurement in Brewing and Beverage Industry
Even low concentrations of oxygen influence shelf-life and the taste of certain beverages. Due to the extraordinary low detection limit and outstanding accuracy of PreSens trace oxygen sensors, the quality of oxygen-sensitive products such as beer, wine and soft drinks is secured.
The optical sensors have – compared to standard electrodes – a very fast response time and they are very easy to maintain.
Technical
Specifications | Gaseous & Dissolved O2 | Dissolved O2 |
---|---|---|
*after two-point calibration as described in the manual | ||
Measurement range | 0 – 5 % O2 0 – 41.4 hPa | 0 – 2 mg/L 0 – 56.9 µmol/L |
Limit of detection | 0.002 % oxygen | 1 ppb |
Resolution | ± 0.0007 % O2 at 0.002 % O2 | ± 0.0003 mg/L at 0.001 mg/L |
Accuracy* | ± 1 ppb or ± 3 % of the respective concentration; whichever is higher | |
Drift at 0 % oxygen | < 2 ppb within 30 days (sampling interval of 1 min.) | |
Measurement temperature range | from 0 to + 50 °C | |
Response time (t90) | < 6 sec. | < 40 sec. |
Properties | ||
Compatibility | Aqueous solutions, ethanol, methanol | |
No cross-sensitivity | pH 1 – 14 | |
Cross-sensitivity | Organic solvents, such as acetone, toluene, chloroform or methylene chloride Chlorine gas | |
Sterilization procedure | Steam sterilization | |
Cleaning procedure | Cleaning in place (CIP, 2 % NaOH, + 80 °C, + 176 °F) | |
Calibration | Two-point calibration with oxygen-free environment (nitrogen, sodium sulfite) and a second calibration value optimally between 1 % and 2 % oxygen | |
Storage stability | 24 months provided the sensor material is stored in the dark |
Related products
Resources
FAQs
Manuals
Brochures
Software
PreSens Datamanager version 2.0.0.57 - Windows XP/Vista/7/8
PreSens Oxygen Calculator version 3.1.1 - Windows 7/8/10