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| Brand | CHINYEE |
|---|---|
| Origin | Japan |
| Model | RX-620 |
| Measurement Principle | Energy-Dispersive X-ray Fluorescence (ED-XRF) |
| Standards Compliance | ASTM D4294, ISO 8754, JIS K2541, JIS B7995 |
| Sample Types | Kerosene, Naphtha, Diesel, Crude Oil, Heavy Fuel Oil |
| Measurement Range | 0.003–6.00 wt% S |
| Sample Volume | 3–5 mL |
| Detection Limit | 5–200 ppm |
| C/H Ratio Correction | 0.003 wt%/unit C/H ratio (at 1 wt% S) |
| Calibration | Auto 1-, 2-, or 3-point |
| Sample Changer | 12-position turret with acrylic dust cover |
| Detector System | Single reusable PTFE sample cup with polyester film window (sole consumable) |
| X-ray Leakage | ≤0.6 µSv/h at instrument surface |
| Safety | Interlocked mechanical shutter and door sensor |
| Display | 4-line × 20-character LCD |
| Printer | Integrated dot-matrix printer |
| Interface | RS-232C (1 port) |
| Power | DC 12 V (vehicle battery compatible) |
| Weight | 12 kg |
| Enclosure | Integrated console with display, keypad, and printer |
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