Online COD Water Quality Analyzer KCD600

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Xi'an Kacise Optronics Tech Co., Ltd.

Shaanxi, China

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Principle and Application of COD Analyzer
Cod is a commonly used comprehensive index to evaluate the degree of water pollution. The reducing substances in water are various organic matter, nitrate, sulfide, ferrous salt, and so on, but the main one is organic matter. As a result, Chemical oxygen demand is often used as a measure of how much organic matter is in the water. The bigger the Chemical oxygen demand, the more polluted the water is with organic matter.
Principle: water sample, potassium dichromate, silver sulfate solution, and concentrated sulfuric acid mixed high-temperature digestion, high-temperature digestion, determination of the sample in the reduction of the potassium dichromate of the trivalent chromium absorbency, the increased value of the trivalent chromium absorbance value is proportional to the COD value, and the absorbance of trivalent chromium is converted into COD value.

                                                            Model
                                                            KCD600
                                                        
                                                            Contour Dimension
                                                            551 * 403 * 651(length * width * height unit mm)
                                                        
                                                            Monitoring Parameter
                                                            COD
                                                        
                                                            Method
                                                            Potassium dichromate oxidation, spectrophotometry
                                                        
                                                            Power Requirements
                                                            Rated voltage (220 ± 22) VAC frequency (50 ± 1)% Hz
                                                        
                                                            Range
                                                            (0-1000) mg/L and (10-40000) mg/L are expandable
                                                        
                                                            Display unit
                                                            12232 dot matrix display, 7-inch LCD touch screen dual display
                                                        
                                                            Measurement mode
                                                            Manual  measurement,     continuous    measurement,            periodic measurement,      fixed-point     measurement       and automatic calibration measurement
                                                        
                                                            Ambient Humidity
                                                            （65±20）%RH
                                                        
                                                            Measurement period
                                                            Anywhere from 30 minutes to 24 hours
                                                        
                                                            Zero Drift
                                                            ≤±1mg/L
                                                        
                                                            Ambient Temperature
                                                            5-40 °C
                                                        
                                                            Range Drift
                                                            ≤±1%
                                                        
                                                            Repeatability
                                                            ≤3%
                                                        
                                                            Indication error
                                                            ≤±3
                                                        
                                                            MBTF
                                                            > 1440 hours
                                                        
                                                            Stored data
                                                            Five years of data storage
                                                        
                                                            Communication interface
                                                            Route 24-20ma, Route 1 RS232, Route 1 RS485

Monitoring of enterprise rainwater and sewage
Monitoring of COD Analyzer content in the municipal pipe networks, pumping stations, groundwater, river water, lake water, and seawater.