Electrochemical carbon monoxide (CO) sensor with low hydrogen cross sensitivity Alphasense

Cross sensitivity to H2, > 4%

Sensitivity nA/ppm in 400ppm CO 55 to 85

Response time t90 (s) from zero to 800ppm CO < 45

Zero current ppm equivalent in zero air < ± 2

Resolution RMS noise (ppm equivalent) < 1

Range ppm CO limit of performance warranty 2,000

Linearity ppm error at full scale, linear at zero and 800ppm CO < ± 40

Overgas range maximum ppm for stable response to gas pulse 4,000

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