日本原装进口商用二氧化氮气体检测探头NE-NO2-P

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上传时间：2015-04-26
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日本原装进口商用二氧化氮气体检测探头NE-NO2-P

平面型,尺寸小,易于使用设计.深国安-气体检测一站式方案解决者.

Electrochemical Nitrogen Dioxide Gas Sensor

(Flat Type)

For Industrial Application

深圳市深国安电子科技有限公司地址：广东省深圳市龙华新区牛栏前大厦Ｃ５０７　　　

蒋小姐：１３４　２８７６　２６３１　　　　　　　电话：８６　７５５－８５２５８９００网址：ｗｗｗ．ｓｉｎｇｏａｎ．ｃｏｍ　　ｗｗｗ．ｓｉｎｇｏａｎ．ｃｏｍ．ｃｎ　　ｗｗｗ．ｓｈｅｎｇｕｏａｎ．ｃｏｍ

平面型,尺寸小,易于使用设计.深国安-气体检测一站式方案解决者.

1. General

Nemoto NE series sensors were developed for industrial applications, and NE-NO2-P is a flat/planer type electrochemical nitrogen dioxide gas sensor. Shape and pin positions are quite different from others, but the stability, repeatability, durability and reliability are superior to others like NE-NO2, however the price is competitive with others. Features and applications are as follows.

2. Detection principle

Electrochemical sensor consists of working electrode on which oxidization or reduction takes place, counter electrode on which reduction or oxidization takes place, and reference electrode which can monitor and keep the voltage at constant. Structure of electrochemical sensor is shown in the following figure, nitrogen dioxide gas diffuses through membrane into working electrode, and is reduced to nitrogen monoxide at working electrode. Generated oxygen ion at working electrode reacts with proton, consequently water is generated at this oxidization reaction. Water molecule proceeds to counter electrode, and is reduced at counter electrode by generated current of this serial reaction. Total reaction is in the below described. NO2 gas concentration is proportional to the current that is

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generated by serial reaction.

3. Features

?Quick response

?Excellent selectivity

?Good linearity and stability

?High reliability

? Excellent durability against high temperature and humidity

4. Detected gas

Nitrogen dioxide

5. Application

?NO2 gas densitometer for industrial application

?NO2 gas alarm for industrial equipment like for car parking area

深圳市深国安电子科技有限公司地址：广东省深圳市龙华新区牛栏前大厦Ｃ５０７　　　

平面型,尺寸小,易于使用设计.深国安-气体检测一站式方案解决者.

6. Dimensions and appearance

Case Material

Cap Color

Weight PPO Orchid (Pre-filter : wine-red) 2.4 g (approx.)

Fig. 1 : Appearance and dimensions of NE-NO2-P

7. Ratings

1) Ambient temperature and Temperature : -20 - +50 degree C humidity in operation Humidity : 15 – 90%RH 2) Recommended ambient temperature Temperature : 0 – 20 degree C and humidity in storage Humidity : 15 – 90%RH

3) Operating pressure range 0.9 – 1.1 atm 4) Detection range 0 – 20ppm 5) Maximum overload 100ppm 6) Recommended load resistor 10 ohm

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深圳市深国安电子科技有限公司地址：广东省深圳市龙华新区牛栏前大厦Ｃ５０７　　　

平面型,尺寸小,易于使用设计.深国安-气体检测一站式方案解决者.

8. Specifications 1) Output signal 150 +/-30nA/ppm of NO2 (Contrary signal to other models) 2) Response time (T90) Less than 25sec. 3) Repeatability in the same day Less than +/- 2% 4) Annual zero offset drift Less than 0.5ppm of NO2 5) Zero offset temperature dependence Less than 2ppm of NO2

(-20 ~ +50 degree C)

6) Minimum detection range 0.2ppm 7) Sensitivity reduction in long term Less than 4%/month 8) Lifetime warranty 24 months 9) Recommended storage time Less than 6 months

9. Electrical properties

9-1. Typical Gas Sensitivity

9-2.

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深圳市深国安电子科技有限公司

Fig. 2 : Gas Sensitivity of NE-NO2-P 地址：广东省深圳市龙华新区牛栏前大厦Ｃ５０７　　　蒋小姐：１３４　２８７６　２６３１　　　　　　　电话：８６　７５５－８５２５８９００网址：ｗｗｗ．ｓｉｎｇｏａｎ．ｃｏｍ　　ｗｗｗ．ｓｉｎｇｏａｎ．ｃｏｍ．ｃｎ　　ｗｗｗ．ｓｈｅｎｇｕｏａｎ．ｃｏｍ

平面型,尺寸小,易于使用设计.深国安-气体检测一站式方案解决者.

9-2. Cross Sensitivity

Table 1 : Cross Sensitivity of NE-NO2-P

Detected gases Relative sensitivity (Sensitivity to NO2 is 100.)

Nitrogen dioxide 100

Carbon monoxide 0

Carbon dioxide 0

Hydrogen 0

Chlorine 0

Sulfur-dioxide Approx. 0

Nitrogen monoxide 0

Hydrogen sulfide -60