LaMotte WaterLink 3 Express Lab User Manual
Page 12
UDV TROUBLESHOOTING
High Chlorine/Bromine - High sanitizer levels may cause the DPD powder
1.
in the UDV to bleach out to a colorless or near colorless solution. A dilution
procedure can be used to determine the approximate level of sanitizer.
Note: At high sanitizer levels, chloramines could break through into the Free
Chlorine test, the pH UDV may turn purple and the Alkalinity UDV may turn
yellow.
High Copper - Copper at levels above 1.0 ppm may cause the Hardness
2.
test to read low.
Low Alkalinity - Algaecide treatments above recommended levels may lower
3.
the alkalinity results. Make sure the color has been allowed to develop for
1.5 minutes.
Cyanuric Acid - Since Cyanuric Acid tests are temperature dependent, the
4.
best results are obtained when sample temperatures are between 70 and
80 degrees. Below this range, results may read high, while in temperatures
above the range they may read low.
pH Purple - As noted under High Chlorine/Bromine above, sanitizer levels
5.
beyond 10 ppm can turn the pH reaction purple.
Hardness - Be sure to allow the Hardness color to develop for at least one
6.
minute, but read the result before five minutes expire. High Copper or low
pH levels can significantly reduce the expected hardness result.
OTHER SERIES
The Other Series uses various forms of reagent systems. The reactions are
read in a round glass tube (0290) so the UDV adapter must be removed
from the meter chamber (See page 8). To perform one test in the series,
press
or
to scroll to the desired test factor, press ENTER, and
then follow the test instructions to scan a blank and a reacted sample.
To run multiple tests in the series, insert the blank tube containing the
sample water and press ENTER to select BLANK vial. The meter will only
need to be blanked once at the beginning of the series. Press
or
to scroll from one test factor to the next and follow the individual test
instructions to react and scan a reacted sample.
12
Testing with the W
aterLink
®
3 Express Lab