The S4-NO nitric oxide gas detection sensor is a constant potential electrolytic sensor. Nitric Oxide and oxygen undergo corresponding redox reaction on the working electrode and the counter electrode and release charge to form a current. The generated current is proportional to the concentration of Nitric Oxide. The concentration of Nitric Oxide can be determined by measuring the current.
| Item | Parameter |
| Model | S4-NO |
| Detection principle | Electrochemical 3 electrodes |
| Detection gas | NO |
| Detection range | 0-50PPM |
| Maximum load concentration | 200PPM |
| Output signal | 800±200nA/PPM |
| Zero drift | -2~10PPM |
| Resolution | 1PPM |
| Response time | ≤30s |
| Bias voltage | +300mv |
| Load resistance | 5~30Ω |
| Working Temperature | -30℃-50℃ |
| Working Humidity | 15%RH to 90%RH（no condensation） |
| Repeatability | ＜±2% output signal |
| Long-term stability | ＜2% signal/month |
| Linearity | 200PPM |
| Work pressure | 90 to 110 kPa |
| Shelf Life | 12 months after delivery |
| Service Life | 2 years |
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