DW-K9860 - Automatic Kjeldahl Analyzer

Reference
- DW-K9860 : Kjeldahl Analyzer
The DW-K9860 Automatic Kjeldahl Analyzer is a fully automated device integrating distillation and titration functions, designed based on the classical Kjeldahl nitrogen determination method. It features a state-of-the-art central control system, high automation, and premium components. The instrument provides automatic cleaning of digestion tubes and titration cups, steam supply control, and real-time detection of condensation temperature. Its high-precision dosing pump and titration system ensure accurate and reliable test results, while multiple fluid level sensors guarantee a smooth and safe testing process.
Main Features
- High-precision dosing and operation using 4 KNF pumps for liquid measurement and control.
- Easy maintenance with pre-installed cleaning functions: reception cup cleaning, alkali pipeline cleaning, boric acid pipeline cleaning, acid wash, and steam bottle evacuation.
- High titration accuracy: up to 2.0 pL per step.
- Integrated printer for immediate documentation.
Technical Advantages
- Automatic cleaning ensures operator safety and saves time.
- External titration cup design allows real-time monitoring of the entire testing process.
- Adjustable steam flow to meet various testing requirements.
- Reagent reservoir with low-fluid warning function ensures smooth operation.
- High-precision dosing pump and titration system guarantee accurate results.
- Real-time monitoring of distillate temperature; the instrument automatically stops if temperature anomalies occur to ensure experiment accuracy.
Technical Specifications
| Specification | Details |
|---|---|
| Measuring range | 0.1 mg – 200 mg N |
| Analysis time | 5–10 minutes per sample |
| Reproducibility | Average relative error ±0.5% |
| Recovery | ≥ 99.5% |
| Burette volume | 2.0 pL per step |
| Sample capacity | Solid ≤ 5 g / Liquid ≤ 20 mL |
| Water consumption (distillation) | 1.5 L/min |
| Data storage capacity | 1000 groups |
| Power supply | 220 V AC ± 10%, 50 Hz |
| Power | 2 kW |
| Net weight | 38 kg |
| Dimensions (L × W × H) | 455 × 391 × 730 mm |