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Non-invasive Measurement of Smallest Oxygen Traces
Ultra-Trace Oxygen Sensor Spot SP-PSt9
The SP-PSt9 have been designed for measurements of even smallest gaseous oxygen traces. These sensors are especially suited for material research or oxygen sensitive technical applications. The contactless read-out of the sensors allows to place them in closed chambers or systems, while measurements can be taken through an optical window. The SP-PSt9 have a measurement range of 0 – 200 ppmv oxygen, and a detection limit of 0.5 ppmv oxygen. These oxygen sensor spots are suitable for gaseous oxygen measurements only.
- Contactless measurements down to 0.5 ppmv oxygen
- No consumption of oxygen
Technical
| Specifications | Gaseous O2 |
|---|---|
| *after two-point calibration as described in the manual | |
| Measurement range | 0 - 200 ppmv oxygen |
| Limit of detection | 0.5 ppmv oxygen |
| Resolution | 10 ± 0.5 ppmv oxygen 100 ± 0.8 ppmv oxygen 200 ± 1.5 ppmv oxygen |
| Accuracy at + 20 °C* | ± 2 ppmv oxygen or ± 5 %, whichever is higher |
| Measurement temperature range | from 0 to + 40 °C |
| Response time (t90) | < 3 sec. |
| Properties | |
| Compatibility | Gas phase only |
| No cross-sensitivity | CO2, SO2 |
| Cross-sensitivity | Organic vapor, Chlorine gas |
| Calibration | Two-point calibration with oxygen-free environment (nitrogen 6.0) and a second calibration value optimally between 100 and 200 ppmv gaseous oxygen |
| Storage stability | 24 months provided the sensor material is stored in the dark at room temperature |
Related products
Resources
FAQs
How do I import data into excel from a text file containing measurement data?
How does an oxygen sensor work?
How does temperature affect the oxygen measurement?
In which vessel can I integrate a sensor spot?
Is there a standard recommended distance to place the polymer optical fiber (POF) from the sensor spot?
The Stern-Volmer-equation
What are the response times for the oxygen sensors based on the 2 mm fiber like non-invasive oxygen sensors and oxygen probes?
What factors will affect the oxygen reading?
What is the time of delivery?
Where do I need sensor spot sizes different from the common diameter of 5 mm (approx. 0.2 inch)?
Which glue can I use to integrate optical sensor spots?
Which side of the oxygen sensor spot should face the medium?
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