- Week technology ltd
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Shenzhen, Guangdong, China
- Main products: Gas Sensor, Temperature Sensor, Humidity Sensor, Pressure Sensor, Ultrasonic Sensor, UV Sensor, Wind Speed sensor, Liquid Level Sensor
Home > Products > Gas sensor > OX-B431 Ozone Sensor + Nitrogen Dioxide Sensor (O3 Sensor + NO2 Sensor)
OX-B431 Ozone Sensor + Nitrogen Dioxide Sensor (O3 Sensor + NO2 Sensor)
USD $80 - $100
/ Piece
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Product Details
| Brand Name | Alphasense | Place of Origin | United Kingdom | |
| Model Number | OX-B431 | Usage | Gas Sensor |
Product Description
OX-B431 Oxidising Gas Sensor
Ozone + Nitrogen Dioxide
4-Electrode
| OX-B431 O3 Sensor Specification | ||
| OX-B431 O3 Sensor PERFORMANCE | ||
| Sensitivity | nA/ppm at 1ppm O3 | -225 to -550 |
| Response time | t90 (s) from zero to 1ppm O3 | <45 |
| Zero current | nA in zero air at 20℃ | -50 to 70 |
| Noise* | ±2 standard deviations (ppb equivalent) | 15 |
| Range | ppm O3 limit of performance warranty | 20 |
| Linearity | ppm error at full scale, linear at zero and 20ppm O3 | <±0.5 |
| Overgas limit | maximum ppm for stable response to gas pulse | 50 |
| * Tested with Alphasense AFE low noise circuit | ||
| OX-B431 O3 Sensor LIFETIME | ||
| Zero drift | ppb equivalent change/year in lab air | 0 to 20 |
| Sensitivity drift | % change/year in lab air, monthly test | <-20 to -40 |
| Operating life | months until 50% original signal (24 month warranted) | > 24 |
| OX-B431 O3 Sensor ENVIRONMENTAL | ||
| Sensitivity @ -20℃ | (% output @ -20℃/output @ 20℃) @ 2ppm O3 | 70 to 90 |
| Sensitivity @ 40℃ | (% output @ 40℃/output @ 20℃) @ 2ppm O3 | 95 to 125 |
| Zero @ -20℃ | nA | 0 to 25 |
| Zero @ 40℃ | nA | 5 to 100 |
| OX-B431 O3 Sensor CROSS SENSITIVITY | ||
| H2S | sensitivity % measured gas @ 5ppm H2S | <170 |
| NO | sensitivity % measured gas @ 5ppm NO | <5 |
| Cl2 | sensitivity % measured gas @ 5ppm Cl2 | <90 |
| SO2 | sensitivity % measured gas @ 5ppm SO2 | <-7 |
| CO | sensitivity % measured gas @ 5ppm CO | <0.1 |
| C2H4 | sensitivity % measured gas @ 100ppm C2H4 | <0.1 |
| NH3 | sensitivity % measured gas @ 20ppm NH3 | <0.1 |
| H2 | sensitivity % measured gas @ 100ppm H2 | <0.1 |
| CO2 | sensitivity % measured gas @ 5% Vol CO2 | 0.1 |
| Halothane | sensitivity % measured gas @ 100ppm Halothane | <0.1 |
| OX-B431 O3 Sensor KEY SPECIFICATIONS | ||
| Temperature range | ℃ | -30 to 40 |
| Pressure range | kPa | 80 to 120 |
| Humidity range | % rh continuous | 15 to 85 |
| Storage period | months @ 3 to 20℃ (stored in sealed pot) | 6 |
| Load resistor | Ω (AFE circuit recommended) | 33 to 100 |
| Weight | g | <6 |
NO2 Sensor Specification | ||
| OX-B431 NO2 Sensor PERFORMANCE | ||
| Sensitivity to NO2 | nA/ppm at 2ppm NO2 | -250 to -650 |
| Response time | t90 (s) from zero to 2ppm NO2 | <35 |
| Zero current | nA in zero air at 20℃ | -50 to +70 |
| Noise* | ±2 standard deviations (ppb equivalent) | 15 |
| Range | ppm NO2 limit of performance warranty | 20 |
| Linearity | ppm error at full scale, linear at zero and 20ppm NO2 | <±0.5 |
| Overgas limit | maximum ppm for stable response to gas pulse | 50 |
| * Tested with Alphasense AFE low noise circuit | ||
| OX-B431 NO2 Sensor LIFETIME | ||
| Zero drift | ppb equivalent change/year in lab air | 0 to 20 |
| Sensitivity drift | % change/year in lab air, monthly test | <-20 to -40 |
| Operating life | months until 50% original signal (24 month warranted | > 24 |
| OX-B431 NO2 Sensor ENVIRONMENTAL | ||
| Sensitivity @ -20℃ | (% output @ -20℃/output @ 20℃) @ 2ppm NO2 | 70 to 90 |
| Sensitivity @ 40℃ | (% output @ 50℃/output @ 20℃) @ 2ppm NO2 | 95 to 110 |
| Zero @ -20℃ | nA | 0 to 25 |
| Zero @ 40℃ | nA | 5 to 50 |
| OX-B431 NO2 Sensor CROSS SENSITIVITY | ||
| H2S | sensitivity % measured gas @ 5ppm H2S | <170 |
| NO | sensitivity % measured gas @ 5ppm NO | < 5 |
| Cl2 | sensitivity % measured gas @ 5ppm Cl2 | <90 |
| SO2 | sensitivity % measured gas @ 5ppm SO2 | <-7 |
| CO | sensitivity % measured gas @ 5ppm CO | <0.1 |
| C2H4 | sensitivity % measured gas @ 100ppm C2H4 | <0.1 |
| NH3 | sensitivity % measured gas @ 20ppm NH3 | <0.1 |
| H2 | sensitivity % measured gas @ 100ppm H2 | <0.1 |
| CO2 | sensitivity % measured gas @ 5% Vol CO2 | 0.1 |
| Halothane | sensitivity % measured gas @ 100ppm Halothane | <0.1 |
| OX-B431 NO2 Sensor KEY SPECIFICATIONS | ||
| Temperature range | ℃ | -30 to 40 |
| Pressure range | kPa | 80 to 120 |
| Humidity range | % rh continuous | 15 to 85 |
| Weight | g | <6 |
Contact Us
- Week technology ltd
- Contact nameCherry Chat Now
- Phone86-0755-83289036-843
- Address16 Floor, Building #3, Zhongke Mansion, Gaoxin South, Shenzhen, Guangdong
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