Various sensor products
NAP|50A
NAP-50A is a miniature & low power consumption type of NAP-2A, and 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. The following are the basic characteristics but it is recommended to refer to the individual userfs manual for further information. See NAP-2A for measuring circuit for sensor evaluation.
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| Structure & Appearance of NAP-50A |
Target gases and detection range
| Gases |
Detection range |
| Methane |
CH4 |
0.05 ~ 5% (0.05 ~ 2%) |
| Ethane |
C2H6 |
0.05 ~ 3.2 (0.05 ~ 1.5) |
| 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
Ratings
| Items |
Specifications |
| Supply voltage |
DC 2.5 +/- 0.25V
AC 2.5 +/- 0.25V (r.m.s. 50~60Hz) |
| Current (When 2.5V is applied) |
DC 150 ~ 170mA
AC 150 ~ 170mA (r.m.s. 50~60Hz) |
| Ambient Temperature |
In operation -10 ~ +50
In storage -10 ~ +50 |
| Ambient humidity |
In operation 95RH or less
In operation 99RH or less(No dew condensation) |
Gas sensitivity characteristics
| Gases & concentration |
Output voltage |
| Output in air |
-35 ~ +35mV |
| Methane 3000ppm |
10 ~ 16mV |
| Iso-butane 1400ppm |
9 ~ 14mV |
| Hydrogen 1400ppm |
7 ~ 12mV |
| Ethanol 1% |
Less than 10mV |
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| Gas sensitivity characteristics |
Response characteristics |
