工业级甲烷CH4气体传感器NC-300S(英文)

Catalytic type gas sensor NC series were developed for industrial applications, and NC-300S is a single header type gas sensor for general combustible gases. Shape, supply voltage and current are compatible with other sensor, however reliability, repeatability, stability and responsibility are quite superior to others, additionally the durability

（Catalytic Type Gas Sensor）

(Single Header 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

Catalytic type gas sensor NC series were developed for industrial applications, and NC-300S is a single header type gas sensor for general combustible gases. Shape, supply voltage and current are compatible with other sensor, however reliability, repeatability, stability and responsibility are quite superior to others, additionally the durability

1. General

Catalytic type gas sensor NC series were developed for industrial applications, and NC-300S is a single header type gas sensor for general combustible gases. Shape, supply voltage and current are compatible with other sensor, however reliability, repeatability, stability and responsibility are quite superior to others, additionally the durability in strict circumstance are quite excellent. Features and typical applications are as follows.

2. Features and applications

1) Features

?Good stability

?Excellent repeatability and detection accuracy

?Good linearity against gas concentration

?Quick response

?Down sizing for design flexibility of gas alarm or detector

2) Applications

?Fixed type gas alarm or detector for general combustible gases

?Gas densitometer

3. Ratings

1) Supply voltage to sensor AC 2.0 +/- 0.1V(50－60Hz)

DC 2.0 +/- 0.1V

2) Current (when 2.0V is supplied) AC 300 +/- 20mA(50－60Hz)

DC 300 +/- 20mA

3) Ambient temperature and humidity in operation

Temperature -20 - +60 degree C

Humidity Less than 95%RH

(without dew condensation)

4) Ambient temperature and humidity in storage

Temperature -30 - +70 degree C

Humidity Less than 99%RH

(without dew condensation)

5) Detection range 0 – around 60%LEL

accuracy over 60%LEL Lower

(Except acetylene) 4.Specification

1) Zero offset value in air 0 +/- 30mV

(without trimming resistor)

2) Minimum sensitivity 40mV/1% of methane

3) Response time Less than 8 sec. at T90

Less than 3 sec. at T50

4) Linearity Effectively linear to 60%LEL

5) Detection accuracy +/- 1%LEL

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

Catalytic type gas sensor NC series were developed for industrial applications, and NC-300S is a single header type gas sensor for general combustible gases. Shape, supply voltage and current are compatible with other sensor, however reliability, repeatability, stability and responsibility are quite superior to others, additionally the durability

6)

7)

8)

5. Span drift Less than 1%LEL/month Zero offset drift Less than 0.5%LEL/month Warranty period 24 months Appearance and dimension

Fig. 1 : Appearance and dimensions

6. Measuring circuit diagram

Input(+)

Input(GND)

Fig. 2 : Recommended circuit diagram (R1, 2 : 200ohm, VR1 : 3Kohm)

7. Gas sensitivity characteristics 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

Catalytic type gas sensor NC series were developed for industrial applications, and NC-300S is a single header type gas sensor for general combustible gases. Shape, supply voltage and current are compatible with other sensor, however reliability, repeatability, stability and responsibility are quite superior to others, additionally the durability

Fig. 3 : Gas sensitivity characteristics

8.

Temperature dependence at 60%RH

深圳市深国安电子科技有限公司 Fig. 4 : Temperature dependence of zero offset 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

Catalytic type gas sensor NC series were developed for industrial applications, and NC-300S is a single header type gas sensor for general combustible gases. Shape, supply voltage and current are compatible with other sensor, however reliability, repeatability, stability and responsibility are quite superior to others, additionally the durability

Fig. 5 : Temperature dependence of relative sensitivity to methane

9.

Humidity dependence

Fig. 6 : Humidity dependence of zero offset (at 25 degree 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 网址：ｗｗｗ．ｓｉｎｇｏａｎ．ｃｏｍ　　ｗｗｗ．ｓｉｎｇｏａｎ．ｃｏｍ．ｃｎ　　ｗｗｗ．ｓｈｅｎｇｕｏａｎ．ｃｏｍ