Contact combustion type gas sensor NAP-51A

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Consumer alarm
NAP-51A Contact combustion type gas sensor

Contact combustion type gas sensor NAP-51A

For consumer
Consumer alarm
Contact combustion type
Combustible gas (for city gas)

Like the NAP-51A, the NAP-50A is a model with reduced alcohol sensitivity.False detection due to alcohol used in disinfection and cooking can be suppressed. Gas sensitivity is about 50 times higher than NAP-1.6A.

【Feature】

Single head type
Low alcohol sensitivity
High sensitivity

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NAP-51A specifications

Gas sensitivity characteristics

Temperature characteristics

Dimensions

basic specifications

Sensor (RC)	NAP-51A
Detection gas	Flammable gas
Applied voltage	2.5V +/- 0.25V
Clean air output	0+/-35mV
Detection concentration range	Methane: 0-2.5% (0-50% LEL)
Output value * Methane, isobutane, propane, hydrogen sensitivity (10% LEL)	Methane: 27.0 --40.0 mV Isobutane: 15.0 --24.0 mV
Current consumption (at applied voltage)	170mA+/-10mA
Operating environment (temperature conditions, humidity conditions)	-20 ~ + 60 ℃ Less than 95% RH without condensation
Storage environment	-30 ~ + 70 ℃ Less than 99% RH without condensation
Response time (T90)	T90: Within 10 seconds
Same day reproducibility	Zero point: ± 0.5 mV Gas sensitivity: ± 0.5% LEL
Annual zero point drift	Zero point: +/- 2mV / year
Long-term stability	Sensitivity: +/- within 2 mV / month
Design life	5 years or more (in appropriate consumer and small commercial applications)
Recommended storage period	6 months
Straightness	50% LEL

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