Specifications - Nitrogen Dioxide Sensors

Nitrogen Dioxide

NO2-A1

NO2-AE

NO2-B1

NO2-D4

Operating range (ppm) 0 to 20 0 to 200 0 to 20 0 to 20
Sensitivity (nA/ppm) -400 to -750 -100 to -160 -600 to -1100 -200 to -400
Resolution (ppm, 33 ohm load resistor) < 0.02 < 0.1 < 0.02 < 0.1
Response time (t90) (s) < 40 < 25 < 60 < 25
Zero current (ppm equivalent @ 20°C) < ± 0.2 < ± 1.5 < ± 0.2 < ± 0.35
Overgas Limit (ppm) 100 1000 100 60
Operating life (months) >24 >24 >24 >24*
Temperature range (°C) -20 to 50 -20 to 50 -30 to 50 -20 to 50
Pressure range (kPa) 80 to 120 80 to 120 80 to 120 80 to 120
Humidity range (%rh) 15 to 90 15 to 90 15 to 90 15 to 90
Load resistor (ohm) recommended 33 33 33 33

Note: all sensors tested and stored at ambient environments unless otherwise stated. As applications of use are outside our control, the information provided is given without legal responsibility. Customers should test under their own conditions, to ensure that the sensors are suitable for their requirements.

*Alphasense will only warrrant a maximum continuous exposure period of 10 days at 85% rh and 40°C. Where such exposure occurs the sensor will recover normal electrolyte volumes when allowed to rest at lower %rh and temperature levels for several days.

Please use PCB sockets when connecting Alphasense sensors. Soldering, gluing or other methods of connection will void your warranty.

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