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| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | ECO 8 / ECO 25 |
| Instrument Type | Laboratory Benchtop Digestion Unit |
| Measurement Principle | Closed-Tube Thermal Oxidation (Dichromate Reflux Method) |
| Wavelength for Photometric COD Readout | 610 ± 20 nm (requires compatible spectrophotometer) |
| COD Range | 10–5000 mg/L O₂ |
| Accuracy | ±0.5 mg/L (at low range), ±3% (full scale) |
| Repeatability | ±0.5% RSD |
| LOD | 0.1 mg/L |
| Digestion Time Programmable | 0–199 min or continuous mode |
| Batch Capacity | 8 or 25 samples simultaneously |
| Operating Temperatures | 70, 100, 120, 150, 160 °C (user-selectable, PID-controlled) |
| Safety Features | Transparent polycarbonate lid with overheat cut-off, auto-shutdown after cycle completion, thermal insulation housing |
| Optional Accessory | Alphanumeric tube extractor for ECO 25 |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | ECO6, ECO8, ECO16, ECO25 |
| Power Supply | 220–240 V / 50–60 Hz or 110–130 V / 50–60 Hz |
| Temperature Control Accuracy | ±0.5 °C |
| Max Heating Temperature | ECO6 up to 200 °C |
| Sample Capacity | ECO6: 6 × 20 mL tubes |
| ECO8 | 8 × Ø16 mm + 1 × Ø22 mm tubes |
| ECO16 | 14 × Ø16 mm + 2 × Ø22 mm tubes |
| ECO25 | 25 × Ø16 mm tubes |
| Power Consumption | ECO6: 700 W |
| ECO8 | 140 W |
| ECO16 | 550 W |
| ECO25 | 400 W |
| Weight | ECO6: 5.6 kg (12.3 lb) |
| ECO8 | 2.0 kg (4.4 lb) |
| ECO16 | 3.8 kg (8.4 lb) |
| ECO25 | 3.6 kg (7.9 lb) |
| Dimensions (W × H × D) | ECO6: 198 × 132 × 319 mm (7.8 × 5.2 × 12.5 in) |
| ECO8 | 135 × 95 × 230 mm (5.3 × 3.7 × 9.0 in) |
| ECO16 | 168 × 110 × 269 mm (6.6 × 4.3 × 10.6 in) |
| ECO25 | 155 × 95 × 275 mm (6.1 × 3.7 × 10.8 in) |
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