日本原装进口4系一氧化碳气体传感器NE-CO

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日本原装进口4系一氧化碳气体传感器NE-CO

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

Electrochemical CO 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　　　

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1. General

Nemoto NE series sensors were developed for industrial applications, and NE-CO is a standard type electrochemical CO gas sensor. Shape, pin positions and basic features are compatible with others, however the stability, repeatability, durability and reliability are superior to others, but the price is competitive with the others. Features and applications are as follows.

2. Detection principle

Electrochemical sensor consists of working electrode on which oxidization takes place,

counter electrode on which reduction takes place, and reference electrode which can

monitor and keep the voltage at constant. Structure of electrochemical sensor is shown

in right figure, CO gas diffuses through

membrane into working electrode, and CO is

oxidized to CO2 at working electrode. Generated proton at this reaction proceeds to counter electrode, and reacts with dissolved oxygen in electrolyte to water. Total reaction is in the above. CO gas concentration is proportional to the current that is generated by serial reaction.

3. Features

?Quick response and large sensitivity

?Excellent selectivity

?Good linearity and stability

?High reliability and long lifetime

? Excellent durability against high temperature and humidity 4. Detected gas

Carbon monoxide

5. Application

?CO gas densitometer for industrial application

?CO gas alarm for industrial equipment

?Handheld type CO gas leakage checker

?Environmental monitoring equipment

? Fire alarm

6. 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

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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　　　

3) Operating pressure range 0.9 – 1.1 atm

4) Detection range 0 - 1,000ppm

5) Maximum overload 1,500ppm

6) Recommended load resistor 10 ohm

7. Specifications 1) Output signal 70 +/- 15nA/ppm.CO at 20 degree C 2) Response time (T90) Less than 30sec. 3) Repeatability in the same day Less than +/- 2% 4) Annual zero offset drift Less than 5ppm of CO 5) Zero offset temperature dependence Less than 10ppm of CO (-20 ~ +50 degree C) 6) Sensitivity reduction in long term Less than 5%/year 7) Lifetime warranty 24 months 8) Recommended storage time Less than 6 months

8. Dimensions and appearance

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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　　　

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Case Material PPO

Cap Color Light grayish Green Weight 5 g (approx.)

Fig.1 : Appearance and dimensions of NE-CO

9. Electrical properties

9-1. Typical gas sensitivity

Fig.2 : Gas Sensitivity of NE-CO

9-2. Cross Sensitivity Table 1 : Cross Sensitivity of NE-CO

Detected gases Relative sensitivity (Sensitivity to CO is 100.) Carbon-monoxide 100