NO2-A1 Nitrogen Dioxide Sensors - Alphasense - (Version JPG) - Page n° 2 - PDF Catalogue | Technical Documentation

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Nitrogen dioxide sensor, Carbon dioxide sensor, Hydrogen sulfide sensor, Catalytic sensor, Carbon monoxide sensor

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NO2-A1 Performance Data

Figure 2 Sensitivity Temperature Dependence


	1-


	- 90
			—•—Mean —■—"+95% conf."
			"-95% conf."
	-1-1-1-1-75-

Figure 2 shows the variation in sensitivity caused by changes in temperature.

This data is taken from a typical batch of sensors. The mean and ± 95% confidence intervals are shown.

o o

CM O

cu o

m m

cu co

0^s

-30 -20

-10

0 10 20

Temperature (^oC)

Figure 3 Zero Temperature Dependence

05-

Figure 3 shows the variation in zero output caused by changes in temperature expressed at ppm gas equivalent.

This data is taken from a typical batch of sensors. The mean and ± 95% confidence intervals are shown.

-*5-

Temperature (^oC)

Figure 4 Humidity plus Temperature Transient Response

0.5

Figure 4 shows typical sensor outputs for a group of sensors exposed to exhaled breath for 4 cycles over 240 seconds.

This is an extreme test for such sensors and the shift in the base line of no more than 0.5 ppm shows a very strong resistance to this test. Therefore the sensor will not give false signals when exposed to transient changes in relative humidity.

0.3

0.1

u p

-0.1

-0.3

-0.5

-0.7

Time (seconds)

For further information on the performance of this sensor, on other sensors in the range or any other subject, please contact Alphasense Ltd. For Application Notes visit "www.alphasense.com".

In the interest of continued product improvement, we reserve the right to change design features and specifications without prior notification. The data contained in this document is for guidance only. Alphasense Ltd accepts no liability for any consequential losses, injury or damage resulting from the use of this document or the information contained within it. ©ALPHASENSE LTD ) Doc. Ref. TDS/NO2A1/Issue 15

NO2-A1 Nitrogen Dioxide Sensors - Alphasense - #2

Nitrogen dioxide sensor, Carbon dioxide sensor, Hydrogen sulfide sensor, Catalytic sensor, Carbon monoxide sensor