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| Brand | Guance |
|---|---|
| Origin | Beijing, China |
| Model | GCYZS-75A |
| Measurement Range | 0–100% O₂ |
| Resolution | 0.1% O₂ |
| Accuracy | ±0.4% O₂ |
| Response Time | <10 s |
| Display Precision | 0.1% ±1 digit |
| Drift | <3% per year |
| Combustion Tube ID | 90 mm, Length: 480 mm |
| Gas Flow Velocity in Tube | 40 ±10 mm/s |
| Chamber Temperature Control | 23 ±2 °C |
| Ignition Flame Length | 5–50 mm (adjustable) |
| Power Supply | 220 V ±15%, 50 Hz, 100 W |
| Operating Pressure | 0.1 MPa |
| Input Pressure Range | 0.25–0.4 MPa |
| Gas Requirements | Industrial-grade O₂ (GB/T 3863) and N₂ (GB/T 3864), each with pressure regulator (user-supplied) |
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