Technical specifications and features for Nemoto's low-cost, linear-output catalytic combustion gas sensors (NAP-50A and NAP-55A) designed for home use.
The document describes the Nemoto NAP-50A and NAP-55A as contact-type combustible gas sensors intended for residential gas detection. These devices feature a small volume, long life, and linear output up to 50% LEL (Lower Explosive Limit). The sensor consists of a matched pair of catalytic combustion elements housed in a plastic shell with a metal protective mesh. This manual is written in Chinese.
| Measurement Range | 0 - 50% LEL |
|---|---|
| Recommended Voltage | 2.60 ±0.25V |
| Current Consumption | 170 ±10 mA |
| Output Sensitivity (Methane) | 12 ~ 16 mV @ 3000PPm |
| Operating Temperature Range | -10℃ to +50℃ |
| Expected Lifespan | >5 years |
| Response Time (T90) | 8 seconds |
The output sensitivity ranges from 12 to 16 mV at a methane concentration of 3000PPm.
The sensors measure combustible gases and vapors in air within a range of 0-50% LEL.
The recommended operating voltage is 2.60 ±0.25V.
The sensors can be used in an ambient temperature range of -10°C to +50°C.