Model | BK-COD571 | BK-COD572 | |
Range | COD | 0.0~150.0mg/L 0.0~1500mg/L | 0.0~100.0mg/L 100.0~1000mg/L |
Electrolysis current divide | - | 10mA/20mA/40mA | |
Accuracy | Basic accuracy | ≤150mg/L: ±8% reading ±1 mg/L ≥150mg/L: ±8% reading | ±2%FS |
Repeatability | 3% reading | 1%FS | |
Stability | ±2% (reading )/15min | - | |
Measuring Principle | Dichromate colorimetric method | Coulometric titration | |
Digestion Method | Sealing reflux method(could dispelling 21 samples simultaneously) | Reflux method | |
Digestion Temperature | RT~165ºC | Reflux method | |
Digestion Time | 0~120min | - | |
Calibration | Two-point calibration (zero and full scale calibration) | Calibration not need standard solution | |
Data Storage | 200 data with time-and-date stamp | 200 data with time-and-date stamp | |
Data view, delete & print | Yes | ||
Display | LCD | ||
Power Supply | AC110/220V±10%, 50/60Hz | ||
Packing size(mm) | BK-COD571: 370*305*330 Bk-COD571-1: 575*435*285 | 575*435*285 | |
Gross weight(kg) | 8.5 | 4.5 |