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| Brand | WTW |
|---|---|
| Model | TresCon COD-3250 |
| Type | Online Analyzer |
| Measurement Principle | Potassium Dichromate Digestion (High-Temperature Closed-System) |
| Wavelength | 620 nm |
| Range | 20–5000 mg/L COD |
| Accuracy | ≤ ±10% at ≥30 mg/L |
| Repeatability | ≤ ±3% |
| Detection Limit | Not Specified |
| Cycle Time | 35 min per sample |
| Sample Throughput | 1 sample per cycle |
| Compliance | Designed to meet GB 11914-1989 and HJ 399-2007 requirements |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | TresCon COD-3250 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Potassium Dichromate Digestion Method (Online) |
| Wavelength | 610 nm |
| Measurement Range | 20–1500 mg/L (extendable to 5000 mg/L) |
| Accuracy | ±10% of reading for ≥30 mg/L |
| Repeatability | ≤3% |
| Limit of Detection | 5 mg/L |
| Cycle Time | 35 minutes |
| Batch Capacity | 1 sample per cycle |
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