RK500-25 COD Sensor

Many organics dissolved in water can absorb UV light. Therefore, the total amount of dissolved organic pollutants in water can be accurately measured by measuring the absorption of these organic compounds to UV light of 254 nm wavelength. The COD sensor adopts two light sources, one is 254nm ultraviolet light, the other is 550nm green light reference light, which can automatically compensate the attenuation of the optical path and eliminate the interference of impurities in the granular suspension to a certain extent, so as to achieve more stable and reliable measurement.