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Hydrogen Sensor (H2 Sensor)
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Price
Price on request ≥1piece
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Model Number
H2-BF -
Data Sheet
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Package
Original packaging -
Specs
H2-BF -
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Product Description
H2-BF Hydrogen Sensor H2 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.
Hydrogen (H2)
The Hydrogen sensor has excellent ppm sensitivity for low concentrations to 2,000ppm H2. The very low sensitivity to CO makes this one of the most selective Hydrogen sensors on the market.
As with all Hydrogen sensors, temperature compensation for sensitivity must be applied carefully.
Available in A series.
Alphasense is expanding its line of electrochemical Toxic Gas Sensors to address industry-specific requirements, including emissions monitoring, process safety, environmental monitoring and VOCs.
Hydrogen (H2)
The Hydrogen sensor has excellent ppm sensitivity for low concentrations to 2,000ppm H2. The very low sensitivity to CO makes this one of the most selective Hydrogen sensors on the market.
As with all Hydrogen sensors, temperature compensation for sensitivity must be applied carefully.
Available in A series.
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H2-BF Hydrogen Sensor H2 Sensor PERFORMANCE |
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Sensitivity |
nA/ppm in 400ppm H2 |
10 to 25 |
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Response time |
t90 (s) from zero to 400ppm H2 |
< 55 |
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Zero current |
ppm equivalent in zero air |
< ±15 |
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Resolution |
RMS noise (ppm equivalent) |
< 0.8 |
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Range |
ppm H2 limit of performance warranty |
5,000 |
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Linearity |
ppm error at full scale, linear at zero and 4000ppm H2 |
-200 to -500 |
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Overgas limit |
maximum ppm for stable response to gas pulse |
20,000 |
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H2-BF Hydrogen Sensor H2 Sensor LIFETIME |
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Zero drift |
ppm equivalent change/year in lab air |
< 10 |
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Sensitivity drift |
% change/year in lab air, monthly test |
nd |
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Operating life |
months until 80% original signal (24 month warranted) |
> 24 |
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H2-BF Hydrogen Sensor H2 Sensor ENVIRONMENTAL |
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Sensitivity @ -20°C |
% (output @ -20°C/output @ 20°C) @ 400 ppm H2 |
10 to 40 |
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Sensitivity @ 50°C |
% (output @ 50°C/output @ 20°C) @ 400 ppm H2 |
190 to 220 |
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Zero @ -20°C |
ppm equivalent change from 20°C |
30 to 40 |
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Zero @ 50°C |
ppm equivalent change from 20°C |
-5 to -20 |
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H2-BF Hydrogen Sensor H2 Sensor CROSS SENSITIVITY |
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Filter capacity |
ppm·hrs H2S |
250,000 |
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NO2 sensitivity |
% measured gas @ 10ppm NO2 |
< 1 |
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Cl2 sensitivity |
% measured gas @ 10ppm Cl2 |
< 1 |
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NO sensitivity |
% measured gas @ 50ppm NO |
< 1 |
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SO2 sensitivity |
% measured gas @ 20ppm SO2 |
< 1 |
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CO sensitivity |
% measured gas @ 400ppm CO |
< 2 |
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H2S sensitivity |
% measured gas @ 20ppm H2S |
< 1 |
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C2H4 sensitivity |
% measured gas @ 400ppm C2H4 |
< 60 |
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NH3 sensitivity |
% measured gas @ 400ppm NH3 |
< 1 |
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CO2 sensitivity |
% measured gas @ 5% CO2 |
< 1 |
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H2-BF Hydrogen Sensor H2 Sensor KEY SPECIFICATIONS |
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Temperature range |
°C |
-30 to 50 |
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Pressure range |
kPa |
80 to 120 |
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Humidity range |
% rh |
15 to 90 |
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Storage period |
months @ 3 to 20°C (stored in sealed pot) |
6 |
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Load resistor |
Ω (recommended) |
10 to 47 |
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Weight |
g |
< 13 |