Specification O3 Sensing

PERFORMANCE
Sensitivity           nA/ppm at 1ppm O3                                      -225 to -650
Response time         t90 (s) from zero to 1ppm                               O3 < 45
Zero current          nA in zero air at 20°C                                 -50 to 70
Noise*                ±2 standard deviations (ppb equivalent)                15
Range                 ppm O3 limit of performance warranty                    20
Linearity             ppm error at full scale, linear at zero and 20ppm O3    < ±0.5
Overgas limit         maximum ppm for stable response to gas pulse            50
* Tested with Alphasense AFE low noise circuit

Specification NO2 Sensing
PERFORMANCE       
Sensitivity to NO2           nA/ppm at 2ppm NO2                                 -250 to -650
Response time                t90 (s) from zero to 2ppm NO2                              < 35
Zero current                 nA in zero air at 20°C                              -50 to +70
Noise*                       ±2 standard deviations (ppb equivalent)                     15
Range                        ppm NO2 limit of performance warranty                        20
Linearity                    ppm error at full scale, linear at zero and 20ppm NO2    < ±0.5
Overgas limit                maximum ppm for stable response to gas pulse                 50
* Tested with Alphasense AFE low noise circuit