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High Concentration Nitrogen Dioxide Sensor (NO2 Sensor) - NO2-AE

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• Range: 200 ppm limit of performance warranty
• Sensitivity: -100 to -170 nA/ppm @ 20℃ in 10ppm NO2
• Resolution: < 0.1 RMS noise (ppm equivalent) (33Ω)
• Response time t90: < 40 (s) from zero to 10ppm NO2
• Temperature range: -20 to 50°C
• Pressure range: 80 to 120 kPa
• Humidity range: 15 to 90% rh continuous
• Weight: < 6g

Model Number: NO2-AE
Data Sheet:

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Product Specification

NO2-AE Nitrogen Dioxide Sensor (NO2 Sensor) Description
Alphasense Nitrogen Dioxide gas sensors operate using proven fuel cell technology.

NO2-AE Nitrogen Dioxide Sensor size:
20mm diameter, the industry standard size for portable gas detectors

The NO2 range provides OEMs with reliable sensors for use in a number of high volume applications. Strong signal levels combined with low zero current allows resolution to 50 parts per billion (ppb) and an operating range to 20ppm. The sensors are suitable for use in fixed installation sensing heads, portable safety instruments, urban air monitoring and stack gas analysers.

The NO2 sensors offer our electrolyte leak-free guarantee and reliable long-term detection performance. The leakproof housing is moulded with a colour coded top for ease of identification.

NO2-AE Nitrogen Dioxide Sensor (NO2 Sensor) PERFORMANCE
Sensitivity	nA/ppm @ 20℃ in 10ppm NO2 (33Ω Load Resistor)	-100 to -170
Response time	t90 (s) from zero to 10ppm NO2 (33Ω Load Resistor)	< 40
Zero current	ppm equivalent in zero air	< ± 1.5
Resolution	RMS noise (ppm equivalent) (33Ω)	< 0.1
Range	ppm limit of performance warranty	200
Linearity	ppm error at 200ppm, linear at 30 and 100ppm NO2	< 2 to 11
Overgas limit	maximum ppm for stable response to 10 minute gas pulse	> 1000

NO2-AE Nitrogen Dioxide Sensor (NO2 Sensor) LIFETIME
Zero drift	ppm equivalent change/year in lab air	nd
Sensitivity drift	% change/month in lab air, twice monthly gassing	< 2
Operating life	months until 80% original signal (24 month warranted)	> 24

NO2-AE Nitrogen Dioxide Sensor (NO2 Sensor) ENVIRONMENTAL
Sensitivity @ -20°C	% (output @ -20°C/output @ 20°C) @10ppm NO2	75 to 95
Sensitivity @ 50°C	% (output @ 40°C/output @ 20°C) @ 10ppm NO2	98 to 110
Zero @ -20°C	ppm equivalent	< ± 0.5
Zero @ 50°C	ppm equivalent	< 0 to -5

NO2-AE Nitrogen Dioxide Sensor (NO2 Sensor) CROSS SENSITIVITY
CO sensitivity	% measured gas @ 400ppm CO	< 3.5
NO sensitivity	% measured gas @ 50ppm NO	< 1
SO2 sensitivity	% measured gas @ 20ppm SO2	< -10
Cl2 sensitivity	% measured gas @ 5ppm Cl2	< 90
H2 sensitivity	% measured gas @ 400ppm H2	< -0.8
H2S sensitivity	% measured gas @ 200ppm H2S	< -220
C2H4 sensitivity	% measured gas @ 400ppm C2H4	< 0.1
NH3 sensitivity	% measured gas @ 20ppm NH3	< -1
CO2 sensitivity	% measured gas @ 5% volume CO2	0
O3 sensitivity	% measured gas @ 100ppb O3	< 60

NO2-AE Nitrogen Dioxide Sensor (NO2 Sensor) KEY SPECIFICATIONS
Temperature range	°C	-20 to 50
Pressure range	kPa	80 to 120
Humidity range	% rh continuous	15 to 90
Storage period	months @ 3 to 20°C (stored in sealed pot)	6
Load resistor	Ω (for optimum performance)	33
Weight	g	< 6

Matched Transmitter board for NO2-AE NO2 Sensor

4-20mA Digital Transmitter Board
• Factory calibration, custom-set for immediate use
• Digital zero, sensitivity and temperature compensation
• Digital and 4-20mA output
• Biased or unbiased operation
• Calibration and range change