| SO2-BF Sulfur Dioxide Sensor SO2 Sensor PERFORMANCE |
| Sensitivity | nA/ppm in 20ppm SO2 | 300 to 480 |
| Response time | t90 (s) from zero to 20ppm SO2 | < 40 |
| Zero current | ppm equivalent in zero air | < ±0.5 |
| Resolution | RMS noise (ppm equivalent) | < 0.1 |
| Range | ppm limit of performance warranty | 100 |
| Linearity | ppm error at full scale, linear at zero and 20ppm SO2 | < ±2 |
| Overgas limit | maximum ppm for stable response to gas pulse | 1000 |
| | | |
| SO2-BF Sulfur Dioxide Sensor SO2 Sensor LIFETIME |
| Zero drift | ppm equivalent change/year in lab air | < 0.1 |
| Sensitivity drift | % change/year in lab air, monthly test | < 4 |
| Operating life | months until 80% original signal (24 month warranted) | > 24 |
| | | |
| SO2-BF Sulfur Dioxide Sensor SO2 Sensor ENVIRONMENTAL |
| Sensitivity @ -20°C | % (output @ -20°C/output @ 20°C) @ 20ppm | 78 to 90 |
| Sensitivity @ 50°C | % (output @ 50°C/output @ 20°C) @ 20ppm | 100 to 120 |
| Zero @ -20°C | ppm equivalent change from 20°C | < 0 to 1 |
| Zero @ 50°C | ppm equivalent change from 20°C | < 0 to 2 |
| | | |
| SO2-BF Sulfur Dioxide Sensor SO2 Sensor CROSS SENSITIVITY |
| Filter capacity | ppm·hrs | 450 |
| H2S sensitivity | % measured gas @ 20ppm H2S | < 2 |
| NO2 sensitivity | % measured gas @ 10ppm NO2 | < -120 |
| Cl2 sensitivity | % measured gas @ 10ppm Cl2 | < -50 |
| NO sensitivity | % measured gas @ 50ppm NO | < -10 |
| CO sensitivity | % measured gas @ 400ppm CO | < 1.5 |
| H2 sensitivity | % measured gas @ 400ppm H2 | < 0.5 |
| C2H4 sensitivity | % measured gas @ 400ppm C2H4 | < 50 |
| NH3 sensitivity | % measured gas @ 20ppm NH3 | < 0.1 |
| | | |
| SO2-BF Sulfur Dioxide Sensor SO2 Sensor KEY SPECIFICATIONS |
| Temperature range | °C | -30 to 50 |
| Pressure range | kPa | 80 to 120 |
| Humidity range | % rh continuous (see note below) | 15 to 90 |
| Storage period | months @ 3 to 20°C (stored in sealed pot) | 6 |
| Load Resistor | Ω (recommended) | 10 to 47 |
| Weight | g | < 13 |
