Aqualytic CHECKIT Comparator D55 Instruction Manual page 5

The mirror unit makes use of the view through the entire length
of the cuvette. Compare the two colour fields and
result as total chlorine in mg/l.
Combined chlorine
Deduct the reading for free chlorine from the figure obtained for
total chlorine. The difference represents the result for combined
chlorine.
Example:
minus
gives :
Important:
Place the cell with the mark (point) to the viewer in the
compartment.
It is essential to rinse the cells thoroughly after each test.
Hold the comparator on the slant so that enough north day light
goes through the cell. The mirror unit makes use of the view
through the entire length of the cell.
Store CHECKIT Disc in the dark.
®
total chlorine
free chlorine
combined chlorine
read off the
0.2 mg/l
0.06 mg/l
0.14 mg/l
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