LaMotte SMART3 Colorimeter - Manual (Page 247)

PROCEDURE
1. Use Indicator, Range, & Test Name chart to select the indicator, corresponding
to anticipated pH range and to determine corresponding test name to select
from colorimeter menu.
2. Press and hold until colorimeter turns on.
3. Press ENTER to select TESTING MENU.
4. Select ALL TESTS (or another sequence containing the appropriate pH test
name) from TESTING MENU.
5. Scroll to and select the appropriate pH test name 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. Use the 0.5 mL pipet (0369) to add exactly 0.5
mL of the pH indicator for the chosen range. Cap and mix.
9. Insert tube into chamber, close lid and select SCAN SAMPLE. Record result.
10. Press
to turn colorimeter off or press
EXIT
to exit to a previous menu or
make another menu selection.
SMART3 Test Procedures 11.10 pH
Test P
rocedures