The SMNO nitric oxide gas detection sensor is a constant potential electrolytic sensor. Nitric oxide and oxygen undergo corresponding redox reactions on the working electrode and counter electrode, respectively, releasing charges and forming a current. The magnitude of the current is directly proportional to the nitric oxide concentration, and the concentration of nitric oxide can be determined by measuring the current magnitude.
| Item | Parameter |
| Model number | SMNO-100 |
| Detection principle | Electrochemical three electrodes |
| Detection gas | NO |
| Detection range | 0-100PPM |
| Maximum load concentration | 200PPM |
| Sensitivity | 350±100nA/PPM |
| Zero Drift | ±2PPM |
| Resolution | 0.5PPM |
| Response time | ＜30s |
| Bias | +300mv |
| Load resistance | 5~30Ω |
| Temperature range | -30℃-50℃ |
| Humidity range | 15%RH to 90%RH (no condensation) |
| Repeatability | ＜±2% |
| Long-term stability | ＜5% signal/year |
| Linearity | Linearity |
| Work pressure | 90 to 110 kPa |
| Shelf life | 12 months after delivery |
| Service life | 2 years |
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