O2-M2 Oxygen Sensor Description
Alphasense Oxygen sensors use capillary flow control.
Unlike partial pressure oxygen sensors, they have good pressure and temperature dependence, making them the best choice in safety applications.
Standard galavanic sensors use lead for greatest reliability but fixed lifetime.
| O2-M2 Oxygen Sensor PERFORMANCE | ||
| Output | μA @ 20.9% O2 | 80 to 120 |
| Response time | t90 (s) from 20.9% to 0% O2 | <15 |
| Zero current | μA in N2 | <2.5 |
| Linearity | % O2 deviation @ 10% O2 | 0.6 |
| O2-M2 Oxygen Sensor LIFETIME | ||
| Output drift | % change in output @ 3 months | <1 |
| Operating life | months until 85% original output of 20.9% O2 | > 24 |
| O2-M2 Oxygen Sensor ENVIRONMENTAL | ||
| Humidity Sensitivity | % O2 change: 0% to 95% rh @ 40℃ | <0.7 |
| CO2 sensitivity | % (change O 2 reading) / % CO2 @ 5% CO2 | 0.1 |
| Pressure sensitivity | (% change of output)/(% change of pressure) @ 20kPa | <0.1 |
| O2-M2 Oxygen Sensor KEY SPECIFICATIONS | ||
| Temperature range | ℃ | -30 to 55 |
| Pressure range | kPa | 80 to 120 |
| Humidity range | % rh continuous (0 to 99% rh short term) | 5 to 95 |
| Storage period | months @ 3 to 20℃ (store in sealed pot, open circuit) | 6 |
| Load resistor | Ω (recommended) | 47 to 100 |
| Diameter | mm (including label) | 20 |
| Height | mm (including foam ring) | 17.4 |
| Weight | g | <16 |
