*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

0 – 22.5 mg/L

0 – 700 µmol/L

Limit of detection

0.05 % oxygen

20 ppb

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

± 0.005 mg/L at 0.09 mg/L
± 0.04 mg/L at 9.06 mg/L
± 0.14 µmol/L at 2.83 µmol/L

± 1.3 µmol/L at 283 µmol/L

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. (gas)

< 2 sec. (liquid)

Response time TF*** (t90)

< 15 sec. (gas)

< 30 sec. (liquid)

Properties

Compatibility

Aqueous solutions, ethanol, methanol

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

Steam sterilization
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

Storage stability

60 months provided the sensor material is stored in the dark at room temperature