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| Brand | Wisdom Optics |
|---|---|
| Origin | Beijing, China |
| Model | GGA-313 |
| Detection Principle | Mid-Infrared Cavity Ring-Down Spectroscopy (CRDS) |
| Configuration | Online Continuous Monitoring System |
| Response Time | <1 s (t₉₀) |
| Repeatability | ±0.2 ppm CO₂, ±0.2 ppb N₂O, ±300 ppm H₂O (1σ, 1 s) |
| Drift | ≤2 ppm CO₂, ≤2 ppb N₂O over 24 h |
| Linear Range | 0–2000 ppm CO₂, 0–10 ppm N₂O, 0–3% H₂O |
| Sample Flow Rate | ~200 sccm |
| Operating Temperature | 0–45 °C |
| Power Consumption | 70 W (startup/heating), 45 W (steady-state) |
| Input Voltage | 200–240 VAC, 50/60 Hz |
| Dimensions (W×D×H) | 530 × 430 × 225 mm |
| Weight | 15 kg |
| Inlet/Outlet Fitting | 1/4″ Swagelok® |
| Communication Interfaces | RS-232, USB |
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