NAP-56A

NAP-55A

NAP-55A is a miniature & low power consumption type sensor. NAP-55A is mainly used for gas detectors and leak testers. NAP-55A is a half in height and needs a half in power consumption compared to existing sensor so that thinner and lighter-weight detectors can be produced.

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NAP-55A's Structure

Target gases and Concentration

Gases Detection Range
Methane CH4 0.05 - 5% (0.05 - 2%)
Propane C3H8 0.03 - 2.2% (0.03 - 1%)
Iso-butane  Iso-C4H10 0.03 - 1.8% (0.03 - 0.8%)
Hydrogen H2 0.05 - 4% (0.05 - 1.5%)
Ethanol C2H5OH 0.05 - 3.2% (0.05 - 1.5%)
Hydrocarbons CnH2n+2 1 - 100%LEL (1 - 50%LEL)
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Gas sensitivity characteristics

Gas & Concentration Output voltage
Output in clean air -35 - +35 mV
Methane 3,000 ppm 10 - 16 mV
Iso-butane 1,400 ppm 10 - 15 mV
Hydrogen 1,400 ppm 7 - 12 mV
Ethanol 1,400 ppm Less than 11 mV
Gas sensitivity characteristics Recommended measuring circuit
NAP-55A

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)