Various sensor products
NAP−130A
NAP-130 is a simple gas sensing unit which output voltage in air has been calibrated. When the rated DC voltage is supplied to the unit, it puts out in mV order and reaches to 0mV in the existence of around 10%LEL of methane or hydrogen gas. Calibration is done depending on users’ requirements, but setting at around 10%LEL is recommended for reliable gas detection in consideration of variation of temperature/humidity and presence of tiny quantity of noise gases.
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Structure & appearance of NAP-130 |
Ratings and specifications
| Item |
Specifications |
| Supply voltage |
DC 2.5 +/- 0.1V |
| Current |
DC 150 - 170mA (2.5V is supplied.) |
| Ambient temperature |
In operation -20 - +80 degree C
In storage -20 - +70 degree C |
| Ambient humidity |
Less than 95%RH,
not dew condensation |
| Recommended initial insensitive time |
90sec. |
| Response time |
T90 : Less than 30sec. |
| Recommended calibration |
10 +/- 1%LEL, Methane : 4500 - 5500ppm,Hydrogen : 3600 - 4400ppm |
| Acceptable calibration |
5 - 25%LEL |
| Output in air |
-27 - -33mV |
Terminal explanation
| No.1 |
+2.5V |
Red |
| 2 |
Unused |
|
| 3 |
Output (+) |
Yellow |
| 4 |
Output (-) |
Green |
| 5 |
GND. |
Black |
Remarks) GND. Should not short-circuit with output (-).
This sensor is installed in outer cases of fixed type fuel cells and gas engines for the purpose of gas leakage detection. Wire length should be less than 2m long, and please do not use connectors other than our recommended ones.
