LaMotte TC-3000 Tri-Meter - Manual (Page 54)

8. Cap the tube. Wipe the tube
thoroughly again with a lint-free
cloth.
9. Open the meter lid. Insert the tube
with the sample water. Align the
index notch on the positioning ring
with the index arrow on the meter.
Close the lid. Scroll down and press
*IOK to select Scan Sample.
C o l o r
* S c a n S a m p l e
€
1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5
10. Record the result. C o l o r
2 8 . 0
c u
* S c a n S a m p l e
€
1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5
11. Press
OFF to turn the meter off or
press
to exit to a previous menu
or make another menu selection.
Note: The meter will remember the last scanned blank reading. It is not necessary
to scan a blank each time the test is performed. To use the previous blank
reading, instead of scanning a new one, scroll to Scan Sample and proceed. For
the most accurate results, the meter should be blanked before each test and the
same tube with tube positioning ring should be used for the blank and the reacted
sample.
Dilution Procedures
Samples and standards may be diluted with distilled or deionized water.
Standard Solutions
The meter has been calibrated with colored standards of known concentrations of
platinum cobalt. One unit of color is equivalent to the color that is produced by 1 mg
platinum/L in the form of the chloroplatinate ion. A 500 cu Color Standard (60 mL,
Code 6058-H) is available from LaMotte.
54 ANALYSIS & CALIBRATION • COLOR