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Measuring principle: Two-wavelength spectrophotometric measurement method (UV: 254 nm / VIS: 546 nm)
Measurement method: Distribution cell method by pumping sample water (cell length: 10 mm)
Indication: LCD 4-digit
Upper row: COD display
Lower row: UV absorbance, VIS absorbance, UV-VIS absorbance, and turbidity display
Measuring range:
COD :0~50 0~100 0~200mg/L
UV absorbance :0~0.500 0~1.000 0~2.000 Abs
VIS absorbance :0~0.500 0~1.000 0~2.000 Abs
UV-VIS absorbance: 0~0.500 0~1.000 0~2.000 Abs
Turbidity: 0~250 0~500 0~1000mg/L (formazine turbidity standard)
3 ranges manual switching (standard)
Resolution:
COD : 0.1mg/L
UV absorbance : 0.001Abs
VIS absorbance : 0.00Abs
UV-VIS absorbance: 0.001Abs
Turbidity : 1 degree
Calibration:
Zero calibration: Pure water or tap water
Absorbance span calibration:
(1) Standard calibration filter 0.8Abs (2) Potassium hydrogen phthalate solution (separate preparation required)
Turbidity span calibration: Calibration with turbidity standard solution (formazine turbidity standard) (separate preparation required)
COD conversion function: The regression line (a+bx) constant a and coefficient b can be set. x is UV-VIS absorbance
Sample water conditions:
Temperature: 0~40°C (not freezing)
Flow rate: 2~5L/min
Pressure: 0.05~0.5MPa(0.5~5kgf/cm2)
Ambient conditions:
Temperature: -5~40°C
Humidity: 90%RH or less
Power supply voltage: AC 85V~240V 50/60Hz 100VA or less
Power Consumption: 100VA or less
Weight: 20kg or less
