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NO2-B1 Nitrogen Dioxide Sensor NO2 Sensor Description
Alphasense Nitrogen Dioxide gas sensors operate using proven fuel cell technology.
NO2-B1 Nitrogen Dioxide Sensor size:
32mm diameter package, the best choice for fixed site applications
The NO2 range provides OEMs with reliable sensors for use in a number of high volume applications. Strong signal levels combined with low zero current allows resolution to 50 parts per billion (ppb) and an operating range to 20ppm. The sensors are suitable for use in fixed installation sensing heads, portable safety instruments, urban air monitoring and stack gas analysers.
The NO2 sensors offer our electrolyte leak-free guarantee and reliable long-term detection performance. The leakproof housing is moulded with a colour coded top for ease of identification.
| NO2-B1 Nitrogen Dioxide Sensor NO2 Sensor PERFORMANCE | ||
| Sensitivity | nA/ppm in 10ppm NO2 | -450 to -1000 |
| Response time | t90 (s) from zero to 10ppm NO2 (33Ω load resistor) | <60 |
| Zero current | ppm equivalent in zero air | <±0.2 |
| Resolution | RMS noise (ppm equivalent) (33Ω Load Resistor) | <0.02 |
| Range | ppm NO2 limit of performance warranty | 20 |
| Linearity | ppm error at full scale, linear at zero and 10ppm NO2 | <±0.2 |
| Overgas limit | maximum ppm for stable response to gas pulse | 100 |
| NO2-B1 Nitrogen Dioxide Sensor NO2 Sensor LIFETIME | ||
| Zero drift | ppm equivalent change/year in lab air | <0.03 |
| Sensitivity drift | % change/year in lab air, monthly test | <-20 to -40 |
| Operating life | months until 80% original signal (24 month warranted) | > 24 |
| NO2-B1 Nitrogen Dioxide Sensor NO2 Sensor ENVIRONMENTAL | ||
| Sensitivity @ -20°C | % (output @ -20°C/output @ 20°C) @ 5ppm NO2 | 75 to 95 |
| Sensitivity @ 50°C | % (output @ 50°C/output @ 20°C) @ 5ppm NO2 | 100 to 112 |
| Zero @ -20°C | ppm equivalent change from 20°C | <± 0.1 |
| Zero @ 50°C | ppm equivalent change from 20°C | <0 to -0.5 |
| NO2-B1 Nitrogen Dioxide Sensor NO2 Sensor CROSS SENSITIVITY | ||
| H2S sensitivity | % measured gas @ 20ppm H2S | <-100 |
| NO sensitivity | % measured gas @ 50ppm NO | <0.5 |
| Cl2 sensitivity | % measured gas @ 10ppm Cl2 | <100 |
| SO2 sensitivity | % measured gas @ 20ppm SO2 | <-2 |
| CO sensitivity | % measured gas @ 400ppm CO | <0.1 |
| H2 sensitivity | % measured gas @ 400ppm H2 | <0.1 |
| C2H4 sensitivity | % measured gas @ 400ppm C2H4 | <0.1 |
| NH3 sensitivity | % measured gas @ 20ppm NH3 | <0.1 |
| CO2 sensitivity | % measured gas @ 5% (Vol) CO2 | 0 |
| NO2-B1 Nitrogen Dioxide Sensor NO2 Sensor KEY SPECIFICATIONS | ||
| Temperature range | °C | -20 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 (for optimum performance) | 33 |
| Weight | g | <13 |
Matched Transmitter board for NO2-B1 NO2 Sensor
4-20mA Analogue Transmitter Board
• Factory calibration, custom-set for immediate use
• Wide operating voltage range
• Low RFI susceptibility
Alphasense 4-20 mA analogue transmitter boards provide a cost effective way for Original Equipment Manufacturers to engineer transmitter heads for fixed installation systems.
4-20mA Digital Transmitter Board
• Factory calibration, custom-set for immediate use
• Digital zero, sensitivity and temperature compensation
• Digital and 4-20mA output
• Biased or unbiased operation
• Calibration and range change
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