NAP-67A

NAP-67A is not made with thermoplastics to achieve a higher temperature resistivity. The pin locations and dimensions are compatible to NAP-66A for the convenience of current users of Nemoto NAP-66A.
The gas sensitivity is better than NAP-66A by about 15%. Users are to pay attention to this higher gas sensitivity upon calibration.

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NAP-67A's Structure

Target gases and Concentration

Gases Detection Range
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%)
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
Iso-butane 1,400 ppm 12 - 18 mV
Hydrogen 1,400 ppm 10 - 17 mV
Ethanol 1,400 ppm 8 - 16 mV

Ratings

Items Ratings
Supply voltage DC 2.0±0.2V
AC 2.0±0.2V(r.m.s. 50-60Hz)
Current (2.0V supplied) DC 140 - 160mA
AC 140 - 160mA(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)