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Chemical Oxygen Demand(COD) Analyser

Chemical Oxygen Demand(COD) Analyser


Quick COD ultra-continually checks the COD content of waste water. Optionally, other sum parameters can be detected, too. At 1,200°C, samples are completely oxidized and within 1-2 minutes the COD result is determined. The COD measurement takes place in less than 2 minutes. Thereby, short measurement value peaks can also be reliably shown. The maintenance service that is required is also fast: Less than 30 minutes per week are necessary. The analyser‘s availability is over 98%.

Moreover, all areas of the analyser have been designed for easy maintenance. Because of their high temperatures our analysers do not need any catalysers. They also can do withoutany filtration of the sample. The entire raw waste water sample including all particles is directly injected into the furnace via the unique injection system. This direct injection through the special lock valves avoids that volatile and purgable organic carbons (VOC/ POC) escape from the sample. The Quick COD ultra-determines the COD of all components. In contrast to the common standard methods, which are time consuming and require dangerous reagents, the QuickCODultra uses the combustion method. It is fast and takes up the original idea of the complete consideration of all organic compounds. The most crucial aspect of this method is: LAR‘s high temperature method – at a temperature of 1,200°C – ensures the reliable   chemical digestion of all compounds in the sample. The complete sample including any particles is oxidised. Afterwards, the amount of oxygen needed is detected by an oxygen detector. This method goes without any use of dangerous and etching substances so that a high operational safety is ensured.



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  • Measurement range: 10 – 150 mg/l, 100 – 2,000 mg/l, 500 – 5,000 mg/l, 1,000 – 8,000 mg/l, 20,000 – 250,000 mg/l, further options available

    Highest combustion temperature (1,200°C) available on the market

    Reliable measurement without reagents

    No filtration necessary

    No memory effects

    Very low maintenance and operational costs

    Measures the real oxygen demand

    Response time: 1 – 2 minutes

    Catalyst-free technique


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