| Location | Risk Significance |
|---|---|
| Double-wall ventilation ducts | Confined space with limited ventilation - leak accumulation is high-risk |
| Fuel-tank joints & connections | Primary leak point on fuel handling systems |
| Fuel preparation rooms | Hot-work adjacent zone with continuous fuel handling |
| Engine rooms & pump rooms | Equipment density and high-temperature surfaces |
| LNG cargo areas | Cryogenic flammable-gas risk |
| Model | Target Gas | Range | Principle | Accuracy | Response | Temperature |
|---|---|---|---|---|---|---|
| GT-C100 | CH₄ Methane | 0-100% LEL | TDLAS | +/-3% FS | <=30 s | -40 ~ 70 °C |
| GQ-C100G-1 | O₂ Oxygen | 0-25% Vol | Electrochemical | +/-3% FS | <=30 s | -20 ~ 55 °C |
| GQ-C100G-2 | CH₃OH Methanol | 0-100% LEL | Catalytic | +/-3% FS | <=30 s | -20 ~ 55 °C |
| GT-C100G-3 | CO₂ Carbon Dioxide | 0-5% Vol | Infrared | +/-3% FS | <=60 s | -20 ~ 55 °C |
| GQ-C100G-4 | H₂S Hydrogen Sulfide | 0-100 ppm | Electrochemical | +/-5% FS | <=60 s | -20 ~ 55 °C |
| GQ-C100G-5 | NH₃ Ammonia | 0-100 ppm | Electrochemical | +/-2% FS | <=30 s | -20 ~ 55 °C |
| GQ-C100B-1 | Cl₂ Chlorine | 0-100 ppm | Electrochemical | +/-5% FS | <=90 s | -20 ~ 55 °C |
| Item | Specification |
|---|---|
| Power consumption | <= 5 W (with audible & visual alarm) |
| Protection rating | IP66 |
| Display | LCD |
| Explosion-proof marking | Ex db IIC T6 Gb (GQ-C100B-1: Ex db ia IIC T4 Gb) |
| Output signal | 4-20 mA / RS485 / wireless |
| Installation | Wall-mounted or pipe-mounted |