CO-BF Carbon Monoxide Sensor

PERFORMANCE
Sensitivity        nA/ppm in 400ppm CO                       80 to 130
Response time t90 (s) from zero to 400ppm CO        < 25
Zero current    ppm equivalent in zero air                   < ± 4
Resolution       RMS noise (ppm equivalent)               < 0.5
Range             ppm limit of performance warranty      5,000
Linearity          ppm CO error at full scale, linear at zero, 1000ppm CO  < ± 30
Overgas limit  maximum ppm for stable response to gas pulse        10,000

LIFETIME
Zero drift           ppm equivalent change/year in lab air    < 0.1
Sensitivity drift  % change/year in lab air, monthly test   < 3
Operating life     months until 80% original signal (24 month warranted) > 24

ENVIRONMENTAL
Sensitivity at -20℃ % (output at -20℃/output at 20℃) at 400ppm CO  70 to 88
Sensitivity at 50℃  % (output at 50℃/output at 20℃) at 400ppm CO   102 to 115
Zero at -20℃         ppm equivalent change from 20℃    < -1 to +4
Zero at 50℃          ppm equivalent change from 20℃    < ± 6

CROSS SENSITIVITY
Filter capacity      ppm·hrs H2S     250,000
Filter capacity      ppm·hrs NO2     120,000
Filter capacity      ppm·hrs NO      120,000
Filter capacity      ppm·hrs SO2     160,000
H2S   sensitivity  % measured gas at 20ppm H2S             < 0.1
NO2   sensitivity  % measured gas at 10ppm NO2            < 0.1
Cl2     sensitivity  % measured gas at 10ppm Cl2              < 0.1
NO     sensitivity  % measured gas at 50ppm NO              < 25
SO2   sensitivity  % measured gas at 20ppm SO2             < 0.1

H2     sensitivity  % measured gas at 400ppm H2 at 20℃ < 65
C2H4 sensitivity  % measured gas at 400ppm C2H4          < 65
NH3   sensitivity  % measured gas at 20ppm NH3              < 0.1

KEY SPECIFICATIONS
Temperature range ℃                            -30 to 50
Pressure range        kPa                          80 to 120
Humidity range       % rh continuous      15 to 90
Storage period        months @ 3 to 20℃ (stored in sealed pot) 6
Load resistor           Ω (recommended)    10 to 47
Weight                    g                              < 13