The S4CH3OH methanol gas detection sensor is a constant-potential electrolytic sensor. Methanol and oxygen undergo corresponding oxidation-reduction reactions on the working electrode and counter electrode, respectively, releasing charges and forming an electric current. The magnitude of the generated current is directly proportional to the methanol concentration. By measuring the magnitude of the current, the methanol concentration can be determined.
| Item | Parameters |
| Model | S4CH3OH-100 |
| Detection principle | Electrochemical three electrodes |
| Detection gas | methanol |
| Detection range | 0-100PPM |
| Maximum load concentration | 200PPM |
| Sensitivity | 200±100nA/PPM |
| Zero drift | 0~1PPM |
| Resolution | 0.5PPM |
| Response time | ＜30s |
| Bias voltage | 300 mV |
| Load resistance | 5~30Ω |
| Working Temperature | -30℃-50℃ |
| Working Humidity | 15%RH ~ 90%RH(no condensation) |
| Repeatability | ＜±2% |
| Long-term stability | ＜2% signal/month |
| Linearity | Linear |
| Working pressure | 90 ~ 110 kPa |
| Shelf life | 12 months after delivery |
| Service life | 2 years |
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