LaMotte SMART 2 - Manual (Page 180)

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 56 Manganese
H
) from TESTING MENU.
5. Scroll to and select 56 Manganese H from menu.
6. Rinse a 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. Use the 0.1 g spoon (0699) to add two
measures of Manganese Buffer Reagent (6310). Cap and mix until powder
dissolves.
9. Use the 0.15 g spoon (0727) to add one measure of *Manganese Periodate
Reagent (6311). Cap and shake for one minute. An undissolved portion of
the reagent may remain in the bottom of the tube without adversely
affecting the test results. Wait two minutes for maximum color
development. Solution will turn pink if manganese is present.
10. At the end of the two minute waiting period, mix, insert tube into
chamber, close lid and select SCAN SAMPLE. Record result.
11. Press
OFF button to turn colorimeter off or press EXIT button to exit to a
previous menu or make another menu selection.
Manganese–HR 2/2 Smart2 TEST PROCEDURES 2.04