Electrochemical gas sensor NAP-523

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NAP-523 Electrochemical gas sensor

Electrochemical gas sensor NAP-523

For consumer
Consumer alarm
Disaster countermeasure measuring instrument
Special purpose measurement Combustion exhaust measuring instrument
Electrochemical formula
Hydrogen sulfide

NAP-523 is a 3-electrode type electrochemical gas sensor developed to detect hydrogen sulfide.This sensor is highly sensitive and has extremely high selectivity for hydrogen sulfide.Due to the small size of this sensor, it is a gas sensor that can be mounted on portable devices such as bad breath checkers.

【Feature】

High sensitivity
Extremely good gas selectivity
Extremely high linearity with respect to gas concentration
Durability that can withstand harsh environments

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NAP-523 specifications

Gas selectivity

Gas type and test gas concentration (ppm)	Equivalent gas concentration (ppm)
Hydrogen sulfide 0.5	0.5
Methyl mercaptan 0.5	Less than 0.5
Tetrahydrothiophene 0.5	0.5
2-Nonenal 100	Approximately 0
Carbon monoxide 100	Approximately 0
Carbon dioxide 5000	0
Hydrogen 100	Approximately 0
Chlorine 1	-0.4
Sulfur dioxide 1	Less than 0.25
Nitric oxide 5	-0.25 or more and less than 0
Methane 100	0
Ammonia 10	0
Nitrogen dioxide 5	-0.5 or more and less than 0
Ethanol 10,000	Less than 0.5
Acetone 10,000	-0.5 or more and less than 0.1
Acetaldehyde 100	Approximately 0

Gas sensitivity characteristics

Temperature characteristics

Dimensions

Recommended measurement circuit

basic specifications

Sensor (IE, RE)	NAP-523
Detection gas	Hydrogen sulfide
Detection concentration range	0-0.5ppm
Maximum detection gas concentration	1ppm
Output value	550 ± 150 nA / ppm
Operating environment (temperature conditions, humidity conditions)	Temperature: -20-+ 50 ℃ Humidity: 15-90% RH
Response time (T90)	Within 60 seconds
Same day reproducibility	Within ± 5%
Annual zero point drift	Within ± 0.1 ppm
Zero temperature dependence	Within ± 1 ppm
Long-term stability	Within 2% / month
Design life	24 months
Recommended storage period	Within XNUMX months
Resolution (ppm)	0.06ppm / H2S
Straightness	Within ± 10%
Bias voltage	Must not
Zero point offset	Within ± 0.1 ppm

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