Watch tutorials, webinars and informative videos about PreSens optical sensor systems.
Replacement Trace Oxygen Sensor for OIMs or OXYPro® TR / TRM
Oxygen Exchange Cap OEC-PSt6-YAU
The Oxygen Exchange Cap with integrated sensor type PSt6 is made of stainless steel. The sensor has a maximum measurement range of 0 - 10 % oxygen, with a detection limit of 0.002 % O2. The OEC-PSt6-YAU is available in different versions: YOP for bioprocess monitoring, safe for food applications (CAF), or with a hydrophobic Teflon coating (PTFE) for measurements in aggressive environments. It can be screwed to the top of an OIM (Oxygen Probe for In-line Measurements) or the OXYPro® TR / TRM. This way a used sensor can easily be exchanged as the cap can be calibrated with one fast barcode scan. OEC-PSt6-YAU stands cleaning in place & steam sterilization.
- Maximum measurement range of 0 - 10 % O2
- Different versions: food applications, aggressive environments
- Stands SIP (max. + 140 °C, 1.5 atm) & CIP (+ 80 °C, 2 % NaOH)
- Easy exchange due to barcode calibration
- Pressure resistant
Process Control in Biotech & Pharma
The OIMs, the oxygen probes for in-line measurement, are designed for harsh conditions like high pressure or oil/water mixtures. These systems give high accuracy and are almost maintenance-free as they do not contain any membranes and electrolytes. The sensors are fully autoclavable and sterilizable (CIP & SIP).
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.
|*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 - 5 % O2, 0 - 50 hPa, 0 - 2.0 mg/L|
Max.**: 0 - 10 % O2, 0 - 100 hPa, 0 - 4.5 mg/L
|Limit of detection*||0.002 % O2, 0.02 hPa, 1 ppb|
|Resolution*||0.002 % O2 ± 0.0006 % O2, 0.046 % O2 ± 0.0008 % O2, 0.2 % O2 ± 0.001 % O2|
1 ppb ± 0.3 ppb, 20 ppb ± 0.4 ppb, 100 ppb ± 0.5 ppb
|Response time (t90)|
< 10 sec.
< 30 sec.
< 15 sec.
< 40 sec.
< 85 sec.
< 100 sec.
|Compatibility||Aqueous solutions, ethanol, methanol|
|No cross-sensitivity to||pH 1 - 14, CO2, H2S, SO2, ionic species|
|Cross-sensitivity to||Chlorine gas|
Organic solvents such as pure acetone, toluene, chloroform or methylene chloride
|Steam sterilization (max. + 140 °C, 1.5 atm)||Yes||Yes||Yes|
|Cleaning in Place (CIP)|
(+ 80 °C, 2 % NaOH)
|Cleaning Procedure||3 % H2O2, acidic agents (HCl, H2SO4) max. 4 - 5 %|
Cleaning agents containing ClO2 at room temperature
|Calibration||Two-point calibration in oxygen-free environment (e. g. nitrogen 5.0, 1 % sodium sulfite solution) and a second calibration medium between 1 and 2 % oxygen|
|Storage stability||5 years provided the sensor material is stored at room temperature in dry conditions and in the dark|
|Pressure resistance*||10 mbar up to 12 bar|
|Temperature range operation||Optimal: 0 °C to + 50 °C|
Max.: - 40 °C to + 90 °C
|Temperature range storage||Optimal: room temperature (+ 20 °C ± 5 °C)|
Max.: 0 °C to + 70 °C
|Variants||-||Safe for food applications||Hydrophobic Teflon coating|
Trace Range Oxygen Probe OXYPro® TR & TRM
(max. 0 - 10 % O2)
The OXYPro® TR & TRM combine an optical sensor type PSt6 and…
Oxygen Probe for In-Line Measurement OIM-PSt6
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