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20 ppm Zetron NO Nitric Oxide Gas Sensor 4 Electrode NO-B4

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20 ppm Zetron NO Nitric Oxide Gas Sensor 4 Electrode NO-B4

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Brand Name :	Alphasense
Model Number :	NO-B4
Certification :	CE
Payment Terms :	L/C, D/A, D/P, T/T

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20 ppm Zetron NO Nitric Oxide Gas Sensor 4 Electrode NO-B4

NO-B4 Nitric Oxide Sensor (NO Sensor) Description
Alphasense Nitric Oxide gas sensors operate using proven fuel cell technology.
Sensors are available in the following sizes:
A: 20mm diameter, the industry standard size for portable gas detectors
B: 32mm diameter package, the best choice for fixed site applications
D: miniature, with proven long-term performance. Sensors designed for the next generation of portable gas detectors.
The NO 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 200 parts per billion (ppb) whilst giving linear outputs to as high as 250ppm. The sensors are suitable for inclusion in fixed installation sensing heads, portable safety instruments, urban air monitoring and stack gas analysers.
Alphasense NO sensors provide a significant improvement in stability of response to transient relative humidity changes.
The NO 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.

NO-B4 Nitric Oxide Sensor (NO Sensor) 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

NO-B4 Nitric Oxide Sensor (NO Sensor) 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

Nitric Oxide Sensor (NO Sensor) NO-B4 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

NO-B4 Nitric Oxide Sensor (NO Sensor) 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

NO-B4 Nitric Oxide Sensor (NO Sensor) 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

Matched Transmitter board for NO-B4 NO Sensor
Individual Sensor Board (ISB) Alphasense B4 4-Electrode Gas Sensors
The Individual Sensor Board (ISB) is designed for use with the Alphasense B4 family of four-electrode gas sensors. This potentiostat provides a dual channel voltage output.
A low noise bandgap provides the bias voltage for NO sensors and the ISB can measure both oxidising (CO, H2S, SO2 and NO) and reducing (O3 and NO2) gases.
The ISB is configured for specific sensors: NO, NO2, O3 and CO / H2S / SO2 .
Designed for low power applications, the ISB requires 3.5 to 6.4 stable DC supply at only 1mA.

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