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| Brand | TUNE VOLT |
|---|---|
| Model | TW-5258 |
| Origin | Beijing, China |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Range | 0–1000 mg/L |
| Minimum Resolution | 0.01 mg/L |
| Accuracy | ≤ ±2% F.S. |
| Repeatability | ≤ 3% |
| Optical Drift | < 0.002 A in 20 min |
| Dimensions (with printer) | 340 mm × 250 mm × 130 mm |
| Dimensions (without printer) | 266 mm × 200 mm × 130 mm |
| Operating Temperature | 5–45 °C |
| Relative Humidity | ≤ 85% RH |
| Power Supply | AC 220 V ± 10%, 50 Hz ± 0.5 Hz |
| Weight | 4 kg |
| Brand | TUNE VOLT |
|---|---|
| Model | TW-5235 |
| Origin | Beijing, China |
| Measurement Range | 0.05–100 mg/L (three sub-ranges: 0–1, 1–10, 10–100 mg/L) |
| Accuracy | ±5% or ±0.2 mg/L (whichever is greater) |
| Repeatability | ≤±3% |
| Chloride Interference Tolerance | ≤2000 mg/L |
| Digestion Temperature | 125 °C (adjustable from ambient to 180 °C) |
| Digestion Time | 30 min |
| Optical Drift | <0.002 A over 20 min |
| Dimensions | 400 × 310 × 158 mm |
| Weight | 5 kg |
| Display | Backlit LCD with Chinese menu interface |
| Data Storage | 10 calibration curves + 99 measurement records (non-volatile memory) |
| Connectivity | USB port for data export |
| Output | Integrated thermal printer |
| Light Source | High-brightness, long-life (100,000 h) imported LED |
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