Hydrogen sulfide gas sensor NE7-H2S

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Disaster countermeasure measuring instrument
NE7-H2S Hydrogen sulfide gas sensor

hydrogen sulfide gas sensor NE7-H2S

Industrial
Industrial alarm
Disaster countermeasure measuring instrument
Electrochemical formula
Hydrogen sulfide

NE7-H2S is an industrial electrochemical hydrogen sulfide gas sensor.
It is mainly used as a stationary gas alarm and measuring instrument.This sensor is a gas sensor that operates in a wider concentration range than the normal shape NE4-H2S, and has excellent response characteristics and durability against high concentrations. ”

【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 specifications

Gas selectivity

Gas type and test gas concentration (ppm)	Equivalent gas concentration (ppm)
Hydrogen sulfide 10	10
Carbon monoxide 100	Less than 6
Hydrogen 1000	Less than 8
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
Isopropyl alcohol 1000	Less than 50
Dichloromethane 100	0

Gas sensitivity characteristics

Temperature characteristics

Dimensions

Recommended measurement circuit

basic specifications

Sensor (IE, RE)	NE7-H2S
Detection gas	Hydrogen sulfide
Detection concentration range	0-200ppm
Maximum detection gas concentration	1000ppm
Output value	400 +/- 100nA / 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	2ppm
Long-term stability	Within 10% / year
Design life	24 months
Recommended storage period	Within XNUMX months
Resolution (ppm)	0.1ppm
Straightness	Within ± 5%
Bias voltage	Must not
Zero point offset	±1ppm

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