LaMotte 2020we Manual

LaMotte 2020we Manual Manual pdf 17 page image

 SAMPLE DILUTION TECHNIQUESIf a test result is out of the range of the meter, it must be diluted. Thetest should then be repeated on the diluted sample. The following tablegives quick reference guidelines for dilutions of various proportions.Amount of Sample Deionized Water to BringFinal Volume to 10 mLMultiplication Factor10 mL 0 mL 15 mL 5 mL 22.5 mL 7.5 mL 41 mL 9 mL 100.5 mL 9.5 mL 20All dilutions are based on a final volume of 10 mL, so several dilutionswill require small volumes of the water sample. Graduated pipets shouldbe used for all dilutions. If volumetric glassware is not available, dilutionscan be made with the colorimeter tube. Fill the tube to the 10 mL linewith the sample and then transfer it to another container. Add 10 mLvolumes of deionized water to the container and mix. Transfer 10 mL ofthe diluted sample to the colorimeter tube and follow the test procedure.Repeat the dilution and testing procedures until the result falls withinthe range of the calibration. Multiply the test result by the dilution factor.For example, if 10 mL of the sample water is diluted with three 10 mLvolumes of deionized water, the dilution factor is four. The test result ofthe diluted sample should be multiplied by four.OPTIONS & SET UP FACTORY DEFAULT SETTINGSSettings that have user options have been set at the factory to defaultsettings.The factory default settings are:Averaging DisabledTurbidity Units NTUTurbidity Calibration FormazinDate Format MM-DD-YYYYPower Save 5 minutesBacklight 10 secondsLanguage English17Options/Set Up