LaMotte DC1500-CL Manual page 8

11. Insert tube into chamber, close
lid and select Scan Sample.
Record result as Total Chlorine
(Monochloramine, Dichloramine,
and Nitrogen Trichloride)
present in the water sample.
12. Subtract free chlorine reading from total chlorine reading to obtain
concentration of combined chlorine.
13. Press
previous menu or make another menu selection.
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