LaMotte COD Plus Colorimeter 1922-EX2 - Manual (Page 83)

PROCEDURE
1. Press and hold ON button until colorimeter turns on.
2. Press ENTER to start.
3. Press ENTER to select TESTING MENU.
4. Select ALL TESTS (or another sequence containing 11 Copper DDC)
from TESTING MENU.
5. Scroll to and select 11 Copper DDC from menu.
6. Rinse a clean tube (0290) with sample water. Fill to the 10 mL line with
sample.
7. Insert tube into chamber, close lid and select SCAN BLANK.
8. Remove tube from colorimeter and add 5 drops of *Copper 1 (6446). Cap
and mix. Solution will turn yellow if copper is present.
9. Insert tube into chamber, close lid and select SCAN SAMPLE. Record
result.
10. Press
OFF button to turn colorimeter off or press EXIT button to exit to a
previous menu or make another menu selection.
NOTE: The reaction may stain the tubes. Scrub the tubes thoroughly after each
use.
COPPER - CUPRIZONE 2/2 COD PLUS TEST PROCEDURES 6/02