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Help CenterSO2-AE High Concentration Sulfur Dioxide Sensor (SO2 Sensor)
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SO2-AE Sulfur Dioxide Sensor SO2 Sensor Description
Alphasense Sulfur Dioxide gas sensors operate using proven fuel cell technology.
SO2-AE Sulfur Dioxide Sensor sizes:
20mm diameter, the industry standard size for portable gas detectors
The SO2 range provides OEMs with reliable sensors for use in a variety of applications. Strong signal levels combined with low zero current allows resolution below 1ppm and an operating range for safety applications up to 2,000ppm. The sensors are designed for use in both fixed site and portable instrumentation.
The SO2 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.
| SO2-AE Sulfur Dioxide Sensor SO2 Sensor PERFORMANCE | ||
| Sensitivity |
nA/ppm in 400ppm SO2 |
55 to 80 |
| Response time |
t90 (s) from zero to 400ppm SO2 |
|
| Zero current |
ppm equivalent in zero air |
|
| Resolution |
RMS noise (ppm equivalent) |
|
| Range |
ppm limit of performance warranty |
2,000 |
| Linearity |
ppm error at full scale, linear at zero and 400ppm |
0 to -80 |
| Overgas limit |
maximum ppm for stable response to gas pulse |
10,000 |
| SO2-AE Sulfur Dioxide Sensor SO2 Sensor LIFETIME | ||
| Zero drift |
ppm equivalent change/year in lab air |
|
| Sensitivity drift |
% change/year in lab air, monthly test |
|
| Operating life |
months until 80% original signal (24 month warranted) |
> 24 |
| SO2-AE Sulfur Dioxide Sensor SO2 Sensor ENVIRONMENTAL | ||
| Sensitivity @ -20°C |
% (output @ -20°C/output @ 20°C) 400ppm |
80 to 92 |
| Sensitivity @ 50°C |
% (output @ 50°C/output @ 20°C) 400ppm |
98 to 108 |
| Zero @ -20°C |
ppm equivalent change from 20°C |
|
| Zero @ 50°C |
ppm equivalent change from 20°C |
|
| SO2-AE Sulfur Dioxide Sensor SO2 Sensor CROSS SENSITIVITY | ||
| Filter capacity |
ppm·hrs H2S |
|
| H2S sensitivity |
% measured gas @ 20ppm H2S |
|
| NO2 sensitivity |
% measured gas @ 10ppm NO2 |
|
| Cl2 sensitivity |
% measured gas @ 10ppm Cl2 |
|
| NO sensitivity |
% measured gas @ 500ppm NO |
|
| CO sensitivity |
% measured gas @ 400ppm CO |
|
| H2 sensitivity |
% measured gas @ 400ppm H2 |
|
| C2H4 sensitivity |
% measured gas @ 1000ppm C2H4 |
|
| NH3 sensitivity |
% measured gas @ 20ppm NH3 |
|
| SO2-AE Sulfur Dioxide Sensor SO2 Sensor KEY SPECIFICATIONS | ||
| 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 |
|
Matched Transmitter board for SO2-AE SO2 Sensor
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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