COD-571 Chemical Oxygen Demand Tester COD Meter
The COD-571 chemical oxygen demand tester has abandoned the traditional complex and bulky spectroscopic system and adopted a new LED light source, greatly reducing the volume and weight of the measuring equipment. Equipped with a special digestion device, the sealed reflux digestion method allows 21 samples to be digested simultaneously. It offers easy operation, rapid digestion, and significant savings in water, electricity, and reagents, while reducing secondary pollution. The COD-571 is suitable for the environmental protection industry, facilitating convenient COD determination of large quantities of samples.
Features
COD analysis in accordance with EPA 410.4 and ISO 15705:2002 standards.
LCD display screen.
2 LED light sources for different COD testing ranges.
2-point calibration.
Data capacity of up to 200 sets (GLP-compliant).
Data stored can be transferred to a computer via USB communication interface.
Specifications
| Parameter | Specification |
|---|---|
| Model | COD-571 |
| Measuring Unit – Range | (0–150) mg/L, (0–1500) mg/L |
| Accuracy | ±8% |
| Repeatability | 3% |
| Fluctuation | 6 mg/L (20 min) |
| Power Supply | AC (220 ± 22) V, (50 ± 1) Hz |
| Dimensions (mm) & Weight (kg) | 315 × 225 × 100 mm, 2 kg |
Main Functions
| Function | Specification |
|---|---|
| Principle of Measurement | Potassium dichromate colorimetry |
| Digestion Method | Hermetically sealed reflux method (21 samples simultaneously) |
| Digestion Temperature | (100–165) °C |
| Digestion Time | (0–120) minutes |
| Calibration | Two-point calibration (zero and full calibration) |
| Data Storage Quantity | 200 |
| Review, Delete, and Print | Included |
| Display | LCD |
| Output Interface | USB |