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Dual Sensor Carbon Monoxide/Hydrogen Sulfide

Description:
Alphasense now offers a compact, dual gas sensor which allows designers to reduce significantly instrument size and cost. The sensor provides a unique approach to the dual gas sensor in both its size and working electrode configuration. The use of a high capacity filter over the Carbon Monoxide working electrode eliminates Carbon Monoxide cross sensitivity to Hydrogen Sulfide.

D2 Specification Carbon Monoxide Channel:
1) Resolution: 1ppm
2) Response time: t90(S)<25s
3) Range: 1000 ppm
4) Zero current < +/-6
5) Sensitivity: 34–55nA/ppm @ 22C, 400ppm CO
6) Linearity: 40ppm
7) Overgas limit: 5,000ppm

D2 Specification Hydrogen Sulfide Channel:
1) Resolution：0.25ppm
2) Response time: t90(S)<30s
3) Range: 100 ppm
4) Zero current < +/-0.6
5) Sensitivity: 90–150nA/ppm @ 22C, 20ppm H2S
6) Linearity: -9ppm
7) Overgas limit: 400ppm