Electrochemical gas sensor NE7-H2S-S

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NE7-H2S-S Electrochemical gas sensor

Electrochemical gas sensor NE7-H2S-S

Industrial
Industrial alarm
Air pollutants
Electrochemical formula
Hydrogen sulfide

NE7-H2S-S is an industrial electrochemical gas sensor.
It is mainly used as a stationary gas alarm and measuring instrument.Since this sensor has high gas sensitivity and high resolution, it is possible to detect trace amounts of hydrogen sulfide in the atmosphere with high accuracy.

【Feature】

Good response characteristics
Excellent gas selectivity
Extremely high linearity with respect to gas concentration
Durability that can withstand harsh environments

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NE7-H2S-S specifications

Gas selectivity

Gas type and test gas concentration (ppm)	Equivalent gas concentration (ppm)
Hydrogen sulfide 10	10
Carbon monoxide 100	Less than 1.5
Hydrogen 1000	Less than 5
Methane 5000	0
Isobutane 2500	0
Carbon dioxide 5000	0
Sulfur dioxide 10	Less than 3
Nitric oxide 35	Less than 2
Nitrogen dioxide 30	Less than -2
Ammonia 100	0
Ethanol 1000	Less than 50
Acetone 1000	Less than 0.2
Toluene 100	0
Heptane 100	0
2-propanol 1000	Less than 50
Dichloromethane 100	0

Gas sensitivity characteristics

Temperature characteristics

Dimensions

Recommended measurement circuit

basic specifications

Sensor (IE, RE)	NE7-H2S-S
Detection gas	Hydrogen sulfide
Detection concentration range	0-10ppm
Maximum detection gas concentration	20ppm
Output value	3000 +/- 700nA / ppm.H2S (under 20 ℃ environment)
Operating environment (temperature conditions, humidity conditions)	Temperature: -20-+ 50 ℃ Humidity: 15-90% RH
Response time (T90)	Within 35 seconds
Same day reproducibility	Within ± 2%
Annual zero point drift	±1ppm
Zero temperature dependence	1ppm
Long-term stability	Within 30% / year
Design life	12 months
Recommended storage period	Within XNUMX months
Resolution (ppm)	0.02ppm
Straightness	Within ± 5%
Bias voltage	Must not
Zero point offset	±0.1ppm

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