NAP-50A

NAP-50A is a miniature & low power consumption type sensor.

NAP-50A is mainly used for gas detectors.  Compared to NAP-55A, NAP-50A has a lower alcohol sensitivity to eliminate false alarms caused by alcohol, thus more reliable gas detectors can be produced with NAP-50A.

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NAP-50A's Structure

Target gases and Concentration

Gases Detection Range
Methane CH4 0.05 - 5% (0.05 - 2%)
Ethane C2H6 0.05 - 3.2% (0.05 - 1.5%)
Hydrogen H2 0.05 - 4% (0.05 - 1.5%)
Hydrocarbons CnH2n+2 1 - 100%LEL (1 - 50%LEL)
( )is a detection range in high accuracy

Gas sensitivity characteristics

Gas & Concentration Output voltage
Output in clean air -35 - +35 mV
Methane 3,000 ppm 10 - 16 mV
Hydrogen 1,400 ppm 7 - 12 mV
Ethanol 1 % Less than 10 mV
Gas sensitivity characteristics Recommended measuring circuit

Ratings

Items Ratings
Supply voltage DC 2.5±0.25V
AC 2.5±0.25V(r.m.s. 50-60Hz)
Current (2.5V supplied) DC 150 - 170mA
AC 150 - 170mA(r.m.s. 50-60Hz)
Ambient Temperature In operation -10 - +50°C
In storage -10 - +50°C
Ambient humidity In operation 95%RH or less
In storage 99%RH or less(No dew condensation)