日本根本有毒气体氯气传感器NE-Cl2

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Electrochemical Chlorine Gas Sensor

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

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深国安电子另有不同量程和信号输出的气体检测模块、气体探测器、气体检测模组和气体检测仪有售。免费技术咨询,免费出解决方案。深国安电子-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-Cl2 is a newly developed electrochemical chlorine gas sensor. Shape and pin positions are compatible with others, but the stability, repeatability, durability and reliability are superior to others, 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, chlorine gas diffuses through membrane into working electrode, and is reduced to hydrogen chloride at working electrode. Consequently adsorbed chlorine receives proton at working electrode, and then, hydrogen chloride is generated at this 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. Cl2 gas concentration is proportional to the current that is generated by this serial reaction.

HCl

Cl

Cl + 2H + 2e → 2Cl + 2HO→

3. Features

Quick response Excellent selectivity

Good linearity and stability High reliability Excellent durability against high temperature and humidity

2

2

+-

224. Detected gas Chlorine 5. Application

Cl2 gas densitometer for industrial application Cl2 gas alarm at water sterilizer

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

深国安电子另有不同量程和信号输出的气体检测模块、气体探测器、气体检测模组和气体检测仪有售。免费技术咨询,免费出解决方案。深国安电子-气体检测一站式方案解决者

6. Dimensions and appearance

Case Material Cap Color Weight PPO

Lemon yellow 5 g (approx.)

Fig.1: Appearance and dimensions of NE-Cl2

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

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深国安电子另有不同量程和信号输出的气体检测模块、气体探测器、气体检测模组和气体检测仪有售。免费技术咨询,免费出解决方案。深国安电子-气体检测一站式方案解决者

7. Ratings

1) Ambient temperature and Temperature : -20 - +50 C

humidity in operation Humidity : 15 – 90% RH 2) Recommended ambient Temperature : 0 – 20 C and humidity in storage Humidity : 15 – 90 %RH

3) Operating pressure range 0.9 – 1.1 atm

4) Detection range 0 – 10ppm

5) Maximum overload 50ppm

6) Recommended load resistor 33 ohm

8. Specifications 1) Output signal 600 +/-150nA/ppm of Cl2

(Contrary signal to other models)

2) Response time (T90) Less than 40sec.

3) Repeatability in the same day Less than +/- 2%

4) Zero offset drift Less than +/-0.2ppm of Cl2

5) Zero offset temperature dependence Less than 0.5ppm of Cl2

(20 ~ +50 C)

6) Minimum detection range 0.1ppm

7) Sensitivity reduction in long term Less than 2%/month

8) Expected lifetime 24 months

storage time Less than 6 months 9) Recommended

9. Electrical properties 9-1. Typical Gas Sensitivity

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地址：广东省深圳市龙华新区牛栏前大厦Ｃ５０７　　　

Fig.2: Gas Sensitivity of NE-Cl2

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深国安电子另有不同量程和信号输出的气体检测模块、气体探测器、气体检测模组和气体检测仪有售。免费技术咨询,免费出解决方案。深国安电子-气体检测一站式方案解决者

9-2. Cross Sensitivity

Table1: Cross Sensitivity of NE-Cl2

Detected gases Relative sensitivity (Sensitivity to Cl2 is 100.)

Chlorine 100

Carbon monoxide Almost 0 Carbon dioxide 0 Hydrogen Almost 0 Nitrogen dioxide 100 Sulfur-dioxide Less than -15 Nitrogen monoxide Less than 2 Hydrogen sulfide Less than -100 Ammonia 0 Ethanol Almost 0

9-3. Zero temperature dependence

Fig. 3 : Typical temperature coefficient of NE-Cl2

(100 at 20 C)

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

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