Oxygen sensor NFSG-PSt1

laboratory

The tiny sensor tip of this oxygen microsensor is fixed inside a steel needle, so it does not protrude the needle tip. It is specially designed for packaging applications and measurements in the headspace. Fixed inside the needle the sensor can be pierced through the packaging material and the oxygen content in the headspace can be determined within seconds. The NFSG-PSt1 has a measurement range of 0 – 50 % oxygen, with a limit of detection of 0.05 % oxygen. High spatial resolution High temporal resolution (t90 < 3 sec.) No consumption of oxygen Measurement in headspace or smallest volumes Specifications - Gaseous O2 *after two-point calibration as described in the manual **TS: tapered sensor tip with a diameter < 50 μm and no optical isolation ***TF: flat-broken sensor tip with a diameter of 140 μm Measurement range - 0 – 50 % O2 0 – 500 hPa Limit of detection - 0.05 % oxygen Resolution - ± 0.01 % O2 at 0.21 % O2 ± 0.09 % O2 at 20.9 % O2 ± 0.1 hPa at 2 hPa ± 1 hPa at 207 hPa Accuracy* - ± 0.4 % O2 at 20.9 % O2 ± 0.05 % O2 at 0.2 % O2 - Drift - < 0.1 % O2 within 30 days (sampling interval of 1 min.) Measurement temperature range - from 0 to + 50 °C Response time TS** (t90) - < 1 sec. Response time TF*** (t90) - < 15 sec. Properties - - No cross-sensitivity - pH 1 – 14 CO2, H2S, SO2 Ionic species Cross-sensitivity - Organic solvents, such as acetone, toluene, chloroform or methylene chloride Chlorine gas Sterilization procedure - Ethylene oxide (EtO) Cleaning procedure - 3 % H2O2 Ethanol Soap solution Calibration - Two-point calibration with oxygen-free environment (nitrogen, sodium sulfite) and air-saturated environment