Watch tutorials, webinars and informative videos about PreSens optical sensor systems.
Ultra-low oxygen measurements in pipes
Oxygen Sensor Integrated in Metal Flow-Through Cell FTM-M10-PSt9
An Oxygen Exchange Cap (OEC-M10) with PSt9 sensor for measurement of smallest oxygen traces (limit of detection 0.5 ppmv O2, measurement range 0 - 200 ppmv O2) is integrated in a metal flow-through cell via M10 thread. The FTM-M10-PSt9 is suitable for measurement in gases and is available with connector diameters of 6 mm, 1/4" or 1/2". The cells can also be connected to pipes with other diameters using the respective adapters. A polymer optical fiber is inserted in the cap for sensor read-out. For industrial environments robust fibers integrated in a metal spiral tube can be connected to the FTM magnetically. The oxygen probe is very robust and long-term stable. The OEC can easily be exchanged if necessary.
- Perfusion monitoring down to 0.5 ppmv O2
- Different FTM sizes available
- No consumption of oxygen
Technical
| Specifications | Gaseous O2 | |||
|---|---|---|---|---|
| *at 20 °C, 960 - 980 hPa; humidified gas mixture **determined changing from 20.9 % oxygen gas to nitrogen 5.0 | ||||
| Measurement range* | 0 - 200 ppmv O2 | |||
| Limit of detection* | 0.5 ppmv O2 | |||
| Resolution* | 10 ± 0.5 ppmv O2 100 ± 0.8 ppmv O2 200 ± 1.5 ppmv O2 | |||
| Response time (t90)** | < 10 sec. | |||
| Properties | ||||
| Compatibility | Gas phase only! | |||
| No cross-sensitivity | CO2, H2S, 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 | 5 years provided the sensor is stored at room temperature in dry conditions and in the dark | |||
| Pressure resistance | 10 mbar up to 20 bar | |||
| Temperature range operation | Optimal: 0 °C to + 40 °C Max.: - 20 °C to + 60 °C | |||
| Temperature range storage | Optimal: room temperature (+ 20 °C ± 5 °C) Max.: 0 °C to + 70 °C | |||
| FTM-M10 formats | Connector diameter | 6 mm | 1/4" | 1/2" |
| Inner diameter | 4.7 mm | 4.8 mm | 10.4 mm | |
| Inner volume | 1.1 cm3 | 1.2 cm3 | 5.0 cm3 | |
| Material | stainless steel 316L (body), 304 (OEC-M10) | |||