ShenzhenYijiajie Electronic Co., Ltd.
The company advocates the corporate culture of "integrity and dedication, pragmatic innovation, unity and cooperation, diligence and progress", pays attention to standardized management, advocates
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NH3-B1 Four Electrode Electrochemical Ammonia Sensor Electrochemical Gas Sensor For Detect The Concentration Of Ammonia In The Atmosphere Linear Current Output Easy Signal Processing
NH3-B1 Ammonia Sensor NH3 Sensor Description
Alphasense is expanding its line of electrochemical toxic gas sensors to address industry-specific requirements, including emissions monitoring, process safety, environmental monitoring and VOCs.
Ammonia (NH3)
Our first family of Ammonia sensors. This sensor is designed for higher concentrations of Ammonia. Sensors for lower level detection are in development.
| NH3-B1 Ammonia Sensor NH3 Sensor PERFORMANCE | ||
| Sensitivity | nA/ppm in 50ppm NH3 | 25 to 45 |
| Response time | t90 (s) from zero to 50ppm NH3 | <60 |
| Zero current | ppm equivalent in zero air | < ± 7 |
| Resolution | RMS noise (ppm equivalent) | <0.3 |
| Range | ppm NH3 limit of performance warranty | 100 |
| Linearity | ppm error at full scale, linear at zero and 20ppm NH3 | +5 to -5 |
| Overgas limit | maximum ppm for stable response to gas pulse | 200 |
| NH3-B1 Ammonia Sensor NH3 Sensor LIFETIME | ||
| Zero drift | ppm equivalent change/year in lab air | <2 |
| Sensitivity | drift % change/year in lab air, monthly test | <3 |
| Operating life | months until 80% original signal (24 month warranted) | >24 |
| NH3-B1 Ammonia Sensor NH3 Sensor ENVIRONMENTAL | ||
| Sensitivity @ -20°C | % (output @ -20°C/output @ 20°C) @ 20ppm | ND |
| Sensitivity @ 50°C | % (output @ 50°C/output @ 20°C) @ 20ppm | ND |
| Zero @ -20°C | ppm equivalent change from 20°C | ND |
| Zero @ 50°C | ppm equivalent change from 20°C | ND |
| NH3-B1 Ammonia Sensor NH3 Sensor CROSS SENSITIVITY | ||
| H2S sensitivity | % measured gas @ 20ppm H2S | <300 |
| NO2 sensitivity | % measured gas @ 20ppm NO2 | <-300 |
| Cl2 sensitivity | % measured gas @ 10ppm Cl2 | <-300 |
| NO sensitivity | % measured gas @ 50ppm NO | ND |
| SO2 sensitivity | % measured gas @ 20ppm SO2 | ND |
| CO sensitivity | % measured gas @ 400ppm CO | <20 |
| H2 sensitivity | % measured gas @ 400ppm H2 | <15 |
| C2H4 sensitivity | % measured gas @ 400ppm C2H4 | ND |
| CO2 sensitivity | % measured gas @ 5% CO2 | ND |
| NH3-B1 Ammonia Sensor NH3 Sensor KEY SPECIFICATIONS | ||
| Bias voltage | mV (Working Electrode potential is above ground) | +200 |
| Temperature range | °C | -30 to 50 |
| Pressure range | kPa | 80 to 120 |
| Humidity range | % rh continuous | 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 |
