LaMotte SMART3 Colorimeter - Manual (Page 112)

PROCEDURE
1. Press and hold until colorimeter turns on.
2. Press ENTER to select TESTING MENU.
3. Select ALL TESTS (or another sequence containing 020 Chloride Tablet) from
TESTING MENU.
4. Scroll to and select 020 Chloride Tablet from menu.
5. Rinse a tube (0290) with sample water. Fill to 10 mL line with sample.
6. Insert the tube into chamber, close lid and select SCAN BLANK.
7. Remove the tube from colorimeter.
8. Add one *Chloride Spectrophotometric Grade Tablet (3885A).
9. Use Tablet Crusher (0175) to crush tablet.
10. Cap tube.
11. Invert 2 times.
12. Wait 3 minutes. Do NOT mix.
13. Insert tube into chamber, close lid and select SCAN SAMPLE. Record result in
ppm chloride.
14. Press to turn the colorimeter off or press
EXIT
to exit to a previous
menu or make another menu selection.
NOTE: For best possible results, a reagent blank should be determined to account
for any contribution to the test result by the reagent system. To determine the
reagent blank, follow the above test procedure to scan a distilled or deionized
water blank. Then follow the above procedure to perform the test on a distilled or
deionized water sample. This test result is the reagent blank. Subtract the reagent
blank from all subsequent test results of unknown samples.
The reagent system is temperature sensitive. The calibration is for 25ºC If sample is
at 30ºC, multiply resulting ppm by 1.1. If the sample is at 20º, multiply ppm by 0.9.
CHLORIDE, Tablet SMART3 Test Procedures 11.10
Test P
rocedures