Hach-Lange PCII-COD LCK 014_114_314_614 - Manual (Page 32)

Operation
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10. The result is displayed in mg/l COD.
Note: In case the COD concentration is out of the selected measuring range the value for
the lowest or highest concentration is displayed and flashes. Repeat the test using the
appropriate LCK Cuvette Test measuring range or dilute your sample.
Note: A zero measurement (with the reagent blank) should be performed prior to each
individual test series.