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PERFORMANCE
Sensitivity nA/ppm at 1ppm O3 -200 to -650
Response time t90 (s) from zero to 1ppm O3 < 45
Zero current nA in zero air at 20℃ -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

LIFETIME
Zero drift ppb equivalent change/year in lab air 0 to 20
Sensitivity drift % change/year in lab air, monthly test < -20 to -40
Operating life months until 50% original signal (24 month warranted) > 24

ENVIRONMENTAL
Sensitivity @ -20℃ (% output @ -20℃/output @ 20℃) @ 2ppm O3 60 to 80
Sensitivity @ 40℃ (% output @ 40℃/output @ 20℃) @ 2ppm O3 80 to 105
Zero @ -20℃ nA 0 to 25
Zero @ 40℃ nA 20 to 90

CROSS SENSITIVITY
H2S sensitivity % measured gas @ 5ppm H2S    < 100
NO sensitivity % measured gas @ 5ppm NO < 5
Cl2   sensitivity % measured gas @ 5ppm Cl2 < 85
SO2 sensitivity % measured gas @ 5ppm SO2     < -6
CO sensitivity % measured gas @ 5ppm CO < 0.1
C2H4 sensitivity % measured gas @ 100ppm C2H4   < 0.1
NH3 sensitivity % measured gas @ 20ppm NH3 < 0.1
H2 sensitivity % measured gas @ 100ppm H2 < 0.1
CO2 sensitivity % measured gas @ 5% Vol CO2    0.1
Halothane sensitivity % measured gas @ 100ppm Halothane < 0.1

KEY SPECIFICATIONS
Temperature range ℃    -30 to 40
Pressure range kPa 80 to 120
Humidity range % rh continuous 15 to 85
Storage period months @ 3 to 20℃(stored in sealed pot) 6
Load resistor Ω (AFE circuit recommended) 33 to 100
Weight   g < 6

Specification NO2 Sensing
PERFORMANCE
Sensitivity to NO2 nA/ppm at 2ppm NO2   -200 to -550
Response time t90 (s) from zero to 1ppm NO2 < 45
Zero current nA in zero air at 20℃    -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

LIFETIME
Zero drift ppb equivalent change/year in lab air 0 to 20
Sensitivity drift % change/year in lab air, monthly test < -20 to -40
Operating life months until 50% original signal (24 month warranted) > 24

ENVIRONMENTAL
Sensitivity @ -20℃ (% output @ -20℃/output @ 20℃) @ 2ppm NO2 50 to 80
Sensitivity @ 40℃ (% output @ 50℃/output @ 20℃) @ 2ppm NO2 115 to 130
Zero @ -20℃ nA 0 to 25
Zero @ 40℃ nA 20 to 50

CROSS SENSITIVITY
H2S sensitivity % measured gas @ 5ppm H2S < 100
NO    sensitivity % measured gas @ 5ppm NO < 5
Cl2 sensitivity % measured gas @ 5ppm Cl2 < 85
SO2 sensitivity % measured gas @ 5ppm SO2 < -6
CO   sensitivity % measured gas @ 5ppm CO < 0.1
C2H4 sensitivity % measured gas @ 100ppm C2H4    < 0.1
NH3 sensitivity % measured gas @ 20ppm NH3 < 0.1
H2 sensitivity % measured gas @ 100ppm H2 < 0.1
CO2 sensitivity % measured gas @ 5% Vol CO2    0.1
Halothane sensitivity % measured gas @ 100ppm Halothane    < 0.1

KEY SPECIFICATIONS
Temperature range ℃ -30 to 40
Pressure range kPa    80 to 120
Humidity range % rh continuous 15 to 85

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