LaMotte SMART3 Colorimeter - Manual (Page 130)

PROCEDURE
1. Press and hold until colorimeter turns on.
2. Press ENTER to select TESTING MENU.
3. Select ALL TESTS (or another sequence containing 019 Chlorine Diox) from
TESTING MENU.
4. Scroll to and select 019 Chlorine Diox from menu.
5. Rinse a clean tube (0290) with sample water. Fill to 10 mL line with sample.
6. Insert tube into chamber, close lid and select SCAN BLANK.
7. Remove tube from colorimeter. Add 5 drops of Glycine Solution (6811).
8. Add one *Chlorine DPD #1 Instrument Grade Tablet (6903A). Cap and shake
for 10 seconds. Invert 5 times slowly. Solution will turn pink if chlorine dioxide is
present.
9. Immediately insert tube into chamber, close lid and select SCAN SAMPLE.
10. Press
to turn colorimeter off or press
EXIT
to exit to a previous menu or
make another menu selection.
CHLORINE DIOXIDE SMART3 Test Procedures 11.10
Test P
rocedures