Small Size Gas Sensor Alphasense B4 Series H2S Sensor
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China [CN] Small Size Gas Sensor Alphasense B4 Series H2S Sensor
Model Number : H2S-B4
Figure 1 H2S-B4 Hydrogen Sulfide Sensor Schematic Diagram
H2S Hydrogen Sulfide Sensor Performance
| Sensitivity | nA/ppm at 2ppm H2S | 1450 to 2050 |
| Response time | t90 (s) from zero to 2ppm H2S | < 45 |
| Zero current | nA in zero air at 20°C | -250 to 0 |
| Noise | ±2 standard deviations (ppb equivalent) | 1 |
| Range | ppm H2S limit of performance warranty | 100 |
| Linearity | ppb error at full scale, linear at zero and 40ppm H2S | < ±4 |
| Overgas limit | maximum ppm for stable response to gas pulse | 200 |
| * Tested with Alphasense ISB low noise circuit | ||
H2S Hydrogen Sulfide Sensor Lifetime
| Zero drift | ppb equivalent change/year in lab air | < ±100 |
| Sensitivity drift | % change/year in lab air, monthly test | < 20 |
| Operating life | months until 80% original signal (24 month warranted) | > 24 |
H2S Hydrogen Sulfide Sensor Environmental
| Sensitivity @ -20°C | (% output @ -20°C/output @ 20°C) @ 2ppm H2S | 77 to 90 |
| Sensitivity @ 50°C | (% output @ 50°C/output @ 20°C) @ 2ppm H2S | 100 to 110 |
| Zero @ -20°C | nA change from 20°C | 50 to 60 |
| Zero @ 50°C | nA change from 20°C | -120 to -160 |
H2S Hydrogen Sulfide Sensor Key Specification
| Temperature range | °C | -30 to 50 |
| Pressure range | kPa | 80 to 120 |
| Humidity range | % rh non-condensing (0 to 99% rh short term) | 15 to 90 |
| Storage period | months @ 3 to 20°C (store in sealed pot, open circuit) | 6 |
| Load resistor | Ω (recommended) | 33 to 100 |
| Weight | g | <13 |
H2S Hydrogen Sulfide Sensor Sensitivity Temperature Dependence
H2S Hydrogen Sulfide Sensor Zero Temperature Dependence
H2S Hydrogen Sulfide Sensor Zero Response to Pressure Steps
Welcome to inquiry for Small Size Gas Sensor Alphasense B4 Series H2S Sensor !
Daisy
Sales Dept.
Tel: +86-755-83289036 Ext. 826
Fax: +86-755-83289052
Email:daisychen@isweek(.)com
www.isweek.com
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