NO-B4 Nitric Oxide Sensor Technical specifications Version 1.0 NO-B4 Nitric Oxide Sensor – 4-Electrode Figure 1 NO-B4 Schematic Diagram Bottom View Bottom View Side View Side View Dimensions are in millimetres PERFORMANCE (± 0.1 mm). Sensitivity nA/ppm at 2ppm NO nA/ppm in 2ppm 500 to 850 Performance Response Sensitivity 2ppm NO time t90 (s) from zero to NO Response time t90 (s) from zero to 2ppm NO < 45 Zero current current nA in zeroinair at 20°C Zero nA zero air at 20°C 30 to 200 Noise* ±2 standard deviations (ppb equivalent) Noise ± 2 standard deviations (ppb equivalent) 15 Range ppm NO limitperformance warranty of performance warranty 20 Range ppm NO limit of Linearity ppb error at full scale, linear at zero and 5ppm NO < 1 Linearity Overgas limit ppb error at full scale, linear at to gas pulse 5ppm± NO zero and maximum ppm for stable response 50 Overgas limit with Alphasense IBS low noise circuit maximum ppm for stable response to gas pulse Tested * * Tested with Alphasense ISB low noise circuit Zero drift Sensitivity drift ppb Operating life ppb equivalent change/year in lab air % change/year in lab air, monthly test equivalent change/year (24-month warranted) in lab air months until 50% original signal Zero drift Sensitivity drift % change/year in lab air, monthly test Operating life months % (output @ -20°C/output @signal 2ppmmonth warranted) until 50% original 20°C) @ (24 NO Sensitivity @ -20°C 60 to 90 Environmental ENVIRONMENTAL Zero @ -20°C nA 0 to 30 nA Sensitivity Zero-20°C (% output @ -20°C/output @ 20°C) @ 2ppm 100 to 200 @ @ 40°C NO Sensitivity @ 40°C (% output @ 50°C/output @ 20°C) @ 2ppm NO H S sensitivity % measured gas @ 5ppm H S (after 3 mins) < -10 Cross Sensitivity Zero @ -20°C nA NO sensitivity % measured gas @ 5ppm NO (after 3 mins) <4 Zero @ 40°C nA Cl sensitivity % measured gas @ 5ppm Cl <3 CROSS SENSITIVITY H sensitivity % measured gas @ 100ppm H < 0.1 H2S sensitivity % measured gas @5ppm CO 2S (after 3 minutes) 5ppm H CO sensitivity % measured gas @ < 0.3 NH sensitivity % measured gas @ 5ppm @ 5ppm NH NO2 sensitivity % measured gas NO2 (after 3 < 0.1 minutes) CO sensitivity % measured gas @ 5% volume CO < 0.1 Cl2 sensitivity % measured gas @100ppb 5ppm O Cl2 O sensitivity % measured gas @ <4 SO2 sensitivity % measured gas @100ppm 5ppm Halothane SO2 Halothane sensitivity @ < 0.1 H2 sensitivity % measured gas @ 100ppm H2 Bias voltage % measured gas @ 5ppm +200 mV (working electrode potential is above reference electrode) Key Specifications sensitivity CO CO Temperature range °C -30 to 50 NH3 sensitivity % measured gas @ 5ppm NH3 Pressure range kPa 80 to 120 CO2 sensitivity range% measured gas @ 5% Vol CO2 Humidity % rh continuous 15 to 85 O3 sensitivity period% measured@ 3 to 20°C (stored in sealed pot) 3 Storage months gas @ 100ppb O 6 Load resistor � (AFE circuit is recommended) Halothane sensitivity @ 100ppm Halothane 33 to 100 2 KEY SPECIFICATIONS Bias voltage mV (working electrode potential is above reference electrode) +20 Temperature range °C -30 to 4 For further information on the performance of this sensor, on other sensors in the range or any other T: +44 (0)1376 556700 E: [email protected] W: www.alphasense.com subject, please contact Alphasense Ltd. or visit our website at “www.alphasense.com

Technical specifications Version 1.0 Perf erformance Data NO-B4 Performance Data Figure 1 Sensitivity Temperature Dependence Figure 2 Sensitivity Temperature Dependence Perf erformance Data NO-B4 Performance Data 120 Figure 2 shows the temperature dependence of sensitivity at 2ppm NO. % Output (referenced to 20(referenced to(referenced to 20oC) % Output oC) % Output 20oC) Figure 2 Sensitivity Temperature Dependence NO-B4 Performance Data Perf erformance Data 100 120 This data2is taken from a Figure shows the typical batch of sensors. of Figure 1 shows the temperature dependence of temperature...