NO-B4 4-Electrode Nitric Oxide Sensor - NO-B4

4-Electrode Nitric Oxide Sensor

  • Model Number: NO-B4
  • Data Sheet: Date Sheet File
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  • NO-B4 4-Electrode Nitric Oxide Sensor
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Product Specification

NO-B4 Nitric Oxide Sensor 4-Electrode


PERFORMANCE
Sensitivity               nA/ppm at 2ppm NO                                                             500 to 850
Response time         t90 (s) from zero to 2ppm NO                                               < 45
Zero current            nA in zero air at 20℃                                                            30 to 140
Noise*                   ±2 standard deviations (ppb equivalent)                                   15
Range                    ppm NO limit of performance warranty                                    20
Linearity                 ppb error at full scale, linear at zero and 5ppm NO                   < ±1
Overgas limit          maximum ppm for stable response to gas pulse                         50
* Tested with Alphasense ISB low noise circuit


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


ENVIRONMENTAL
Sensitivity @ -20℃  (% output @ -20℃/output @ 20℃) @ 2ppm NO                      60 to 90
Sensitivity @ 40℃   (% output @ 50℃/output @ 20℃) @ 2ppm NO                       97 to 110
Zero @ -20℃          nA                                                                                       0 to 30
Zero @ 40℃           nA                                                                                       100 to 200


CROSS SENSITIVITY
H2S                       sensitivity % measured gas @ 5ppm H2S (after 3 minutes)          < 10
NO2                       sensitivity % measured gas @ 5ppm NO2 (after 3 minutes)         < 4
Cl2                         sensitivity % measured gas @ 5ppm Cl2                                   < 3
SO2                       sensitivity % measured gas @ 5ppm SO2                                  < 5
H2                         sensitivity % measured gas @ 100ppm H2                                < 0.1
CO                         sensitivity % measured gas @ 5ppm CO                                   < 0.3
NH3                       sensitivity % measured gas @ 5ppm NH3                                 < 0.1
CO2                       sensitivity % measured gas @ 5% Vol CO2                               < 0.1
O3                         sensitivity % measured gas @ 100ppb O3                                 < 4
Halothane sensitivity                                   @ 100ppm Halothane                          < 0.1


KEY SPECIFICATIONS
Bias voltage             mV(working electrode potential is above reference electrode)   +200
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 (ISB circuit is recommended)                                                33 to 100
Weight                  g                                                                                          < 13

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