6. Dry the tube with a lint-free cloth. Put
on a dry positioning ring. Cap the
tube. Wipe the tube thoroughly
again with a lint-free cloth.
7. Open the meter lid. Insert the tube
into the chamber. Align the index
notch on the positioning ring with
the index arrow on the meter. Close
the lid.
8. Press *IOK to select Scan Blank.
Remove the tube.
Turbidity (F)
* Scan Blank
q
16:02:19 01/04/05
9. Rinse a clean tube (0290), or the
same tube, three times with the
water to be tested. Avoid spilling
water on the outside of the tube.
10. Fill the tube to the fill line with the
sample. Pour the sample down the
inside of the tube to avoid creating
bubbles.
CALIBRATION & ANALYSIS • TURBIDITY 39
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