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| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | COD-583 |
| Price | USD 16,500 (FOB Shanghai) |
| Measurement Principle | Potassium Permanganate Oxidation with ORP Endpoint Detection |
| Instrument Type | Online Analyzer |
| Repeatability | ≤ ±5% |
| Accuracy | ±10% of Full Scale (Actual Water Sample Comparison) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DGB-425 |
| Principle | Potassium Permanganate Oxidation with ORP Endpoint Detection |
| Type | Portable |
| Range | 0.000–10.00 mg/L |
| Repeatability | ≤2.0% RSD |
| Accuracy | ±5% FS |
| LOD | 0.5 mg/L |
| Resolution | 0.001 mg/L |
| Single-test Duration | 30 min |
| Light Source | LED at 540 nm |
| Cuvette | 16 mm OD × 100 mm, 10 mL capacity |
| Dimensions | 220 × 85 × 50 mm |
| Weight | 0.4 kg |
| Operating Temp. | 5–35 °C |
| RH | 0–85% |
| Power | 4 × AA alkaline batteries or USB 5 V DC |
| Display | Backlit LCD with adjustable contrast and backlight timeout |
| IP Rating | IP65 |
| Data Management | GLP-compliant storage, review, deletion, print export via USB |
| Calibration | Up to 5-point user-defined calibration |
| Firmware Upgradeable | Yes |
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