Various sensor products
NAP－56A
NAP-55A has been followed by a new version, NAP-56A that is not made with thermoplastics to achieve a higher temperature resistivity. The pin locations and dimensions are compatible to NAP-55A for the convenience of current users of Nemoto NAP-55A. The gas sensitivity is better than NAP-55A by about 15%. Users are to pay attention to this higher gas sensitivity upon calibration.
 Fig. Appearance and structure of NAP－56A |
 |
Target gases & 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％) |
| Hydro-carbons |
CnH2n+2 |
1-100%LEL(1-50%LEL) |
( ) = Detection range with high accuracy
Ratings
| Item |
Ratings |
| Supply voltage |
DC 2.5±0.25V
AC 2.5±0.25V(RMS 50-60Hz)
|
| Current(2.5Vapplied) |
DC 150－170mA
AC 150－170mA(RMS 50-60Hz)
|
| Ambient temperature |
Usage －10 ~ +50℃
Storage －10 ~ +50℃
|
| Ambient humidity |
Usage 95％RH or less
Storage 99％RH or less but no dewCondensation.
|
Gas sensitivity characteristics
| Gases and concentration |
Output values |
| Output in clean air |
－35 ~ +35mV |
| Methane 3,000ppm |
15 ~ 23mV |
| Iso-butane 1,400ppm |
12 ~ 18mV |
| Hydrogen 1,400ppm |
10 ~ 17mV |
