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Ultra-low oxygen measurement in pipes
Metal Flow-Through Cell with Integrated O2 Sensor FTM-PSt9
A sensor stick 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 this metal flow-through cell. The FTM2-PSt9 is suitable for measurement in gases and available with a connector diameter of 1/4". The cell can also be connected to pipes with other diameters using the respective adapters. A polymer optical fiber is screwed to the sensor stick via SMA connector for sensor read-out. The oxygen probe is very robust and long-term stable. The sensor stick can easily be exchanged, if necessary.
- Perfusion monitoring in gases down to 0.5 ppmv O2
- No consumption of oxygen
- Easy exchange of sensor stick
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 (up to 100 bar on special request) |
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 |
FTM2 format | Connector diameter: 1/4" Inner diameter: 4.8 mm Inner volume: 1.0 cm3 Material: stainless steel 316 (body), 316L (sensor stick) |