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Help CenterH2S-B1 Hydrogen Sulfide Sensor (H2S Sensor)
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H2S-B1 Hydrogen Sulfide Sensor (H2S Sensor) Description
Alphasense Hydrogen Sulfide gas sensors operate using well-known fuel cell technology.
H2S-B1 Hydrogen Sulfide Sensor sizes:
32mm diameter package, the best choice for fixed site applications
With very high sensitivity and low zero, accurate and stable readings are possible when measuring current concentration ranges from ppb to 1% H2S.
| H2S-B1 Hydrogen Sulfide Sensor (H2S Sensor) PERFORMANCE | ||
| Sensitivity |
nA/ppm in 20ppm H2S |
300 to 450 |
| Response time |
t90 (s) from zero to 20ppm H2S |
|
| Zero current |
ppm equivalent in zero air |
± 0.8 |
| Resolution |
RMS noise (ppm equivalent) |
|
| Range |
ppm H2S limit of performance warranty |
200 |
| Linearity |
ppm error at full scale, linear at zero and 20ppm H2S |
1 to -5 |
| Overgas limit |
maximum ppm for stable response to gas pulse |
500 |
| H2S-B1 Hydrogen Sulfide Sensor (H2S 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 |
| H2S-B1 Hydrogen Sulfide Sensor (H2S Sensor) ENVIRONMENTAL | ||
| Sensitivity @ -20°C |
% (output @ -20°C/output @ 20°C) @ 20ppm |
80 to 92 |
| Sensitivity @ 50°C |
% (output @ 50°C/output @ 20°C) @ 20ppm |
100 to 110 |
| Zero @ -20°C |
ppm equivalent change from 20°C |
|
| Zero @ 50°C |
ppm equivalent change from 20°C |
|
| H2S-B1 Hydrogen Sulfide Sensor (H2S Sensor) CROSS SENSITIVITY | ||
| NO2 sensitivity |
% measured gas @ 10ppm NO2 |
|
| Cl2 sensitivity |
% measured gas @ 10ppm Cl2 |
|
| NO sensitivity |
% measured gas @ 50ppm NO |
|
| SO2 sensitivity |
% measured gas @ 20ppm SO2 |
|
| CO sensitivity |
% measured gas @ 400ppm CO |
|
| H2 sensitivity |
% measured gas @ 400ppm H2 |
|
| C2H4 sensitivity |
% measured gas @ 400ppm C2H4 |
|
| NH3 sensitivity |
% measured gas @ 400ppm NH3 |
|
| CO2 sensitivity |
% measured gas @ 5% CO2 |
|
| H2S-B1 Hydrogen Sulfide Sensor (H2S Sensor) KEY SPECIFICATIONS | ||
| Temperature range |
°C | -30 to 50 |
| Pressure range |
kPa |
80 to 12 |
| Humidity range |
% rh |
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 H2S-B1 H2S 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.
4-20 mA 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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