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| Brand | Anjie |
|---|---|
| Origin | Shanghai, China |
| Model | AJ5700 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion with Potassium Dichromate (Cr(VI)) Oxidation |
| Measurement Range | 0–700 mg/L COD<sub>cr</sub> |
| Accuracy | ≤5% (vs. certified reference materials) |
| Repeatability | RSD ≤2.0% |
| Cycle Time | <15 min per sample |
| Sample Capacity | ≥30 positions |
| Digestion Stations | ≥30 |
| Titration Stations | ≥2 |
| Reagent Dispensing Precision | ±0.2% |
| Safety Design | Negative-pressure enclosed chamber with fume containment |
| Waste Handling | Integrated废液 collection with overflow alarm |
| Connectivity | TCP/IP & Wi-Fi |
| Data Export Formats | PDF, Word, Excel, CSV, RTF, HTML |
| Brand | ANJIE |
|---|---|
| Model | APA-500 |
| Origin | Shanghai, China |
| Sample Capacity | 48 positions |
| Water Bath Capacity | 8 positions |
| Sample Volume | 100 mL |
| Measurement Range | 0–5.0 mg/L |
| Repeatability | RSD ≤ 2.0% |
| Detection Limit | < 0.07 mg/L |
| Titration Resolution | 1 µL |
| Analysis Time | < 4 min per sample |
| Constant-Temperature Titration Temperature Range | 40–100 °C |
| Temperature Control Accuracy | ±0.1 °C |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | CR3200 |
| Digestion Method | Rapid Thermal Digestion |
| Heating Module | Single Aluminum Block |
| Batch Capacity | 24 × 16 mm Reaction Tubes |
| Temperature Range | Adjustable from Ambient to 170 °C in 1 °C Increments |
| Temperature Accuracy | ±1 °C ±1 Digit |
| Power Supply | 230 VAC 50 Hz ±15% / 115 VAC 60 Hz ±15% |
| Max. Power Consumption | 560 W |
| Safety Compliance | DIN VDE 0700 Part 1 (11/90), CE, cETLus, GS |
| Dimensions (W×D×H) | 256 × 185 × 315 mm |
| Weight | Approx. 3.6 kg |
| Interface | RS232 Serial Port + 2 Banana Sockets (for TFK/AK CR/P or CR/PC Sensors) |
| Predefined Programs | 8 Fixed + 8 User-Defined (0–180 min, Ambient–170 °C) |
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