LaMotte Smart3 Operator's Manual page 166

PROCEDURE
Use COD/UDV adapter.
1. Press and hold
2. Press
3. Select ALL TESTS (or another sequence containing 043 Hardness UDV) from
4. Scroll to and select 043 Hardness UDV from menu.
5. Rinse a clean vial (0156) with sample water.
6. Use the syringe (1184) to add 3 mL of sample to the vial.
7. Insert the vial into chamber, close lid and select SCAN BLANK.
8. Remove vial from the colorimeter.
9. Use the syringe (1184) to add 3 mL of sample to a Calcium Hardness UDV vial
10. Shake vigorously for 10 seconds.
11. Wait one minute.
12. Invert vial 3 times to mix.
13. Insert tube into chamber, close lid and select SCAN SAMPLE. Record result.
14. Press
NOTES: 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. It is necessary to
determine the reagent blank only when a new lot number of reagents is obtained.
UDVs from opened pouches should be used promptly. Store unused vials from
opened pouches in the Foil Storage Bag (9467) to extend the shelf life of the
reagent. Generally, UDVs stored in the bag should be used within 10 days if the
humidity is less than 50% and within 5 days if humidity is greater than 50%. The Foil
Storage Bag contains a desiccant pack with indicator. When the indicator in the
window turns from blue to pink, the bag should be replaced.
HARDNESS, Total, UDV
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until colorimeter turns on.
to select TESTING MENU.
ENTER
TESTING MENU.
(4309).
NOTE: Firmly tap side of vial 5-10 times to remove all air bubbles.
to turn the colorimeter off or press
menu or make another menu selection.
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SMART3 Test Procedures 11.10
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