Turb 430 IR/T
Operation
27
ba75507d09
08/2021
Move to the
Konfiguration
menu with the
<MENU>
key.
Settings
4.6
Measuring the turbidity
NOTE
Never pour any liquids directly into the cell shaft. Always use a cell for
measurement. The meter only measures precisely if the cell is closed
with the black light protection cap and aligned with the marking of the
measuring position determined.
Measuring
For quick and easy measuring we recommend that you use marked cells (see
section 4.3.1 P
If your cells are not marked you can determine the suitable position of the in-
dividual cells in the cell shaft while measuring.
Menu item
Setting
Explanation
Zeit
hh:mm:ss
Enter the time with the number
keys
Datum
Enter the date with the number
keys
Datumsformat
TT.MM.JJ
MM.TT.JJ
MM/TT/JJ
Settings of time and date.
The outside of the cell always has to be clean, dry, and free of fin-
gerprints and scratches. Clean the cells before starting to mea-
sure (see section 5.2.2). Only hold the cells by the top or by the
black light protection cap.
With turbidity values under 1 FNU/NTU, the measured value is
strongly influenced by the cell and its alignment.
To increase measurement accuracy with turbidity values under 1
FNU/NTU, calibration in the 0.02 FNU/NTU standard and later
measurement should take place in the same cell.
1
Clean the cell (see section 5.2.2).
2
Rinse the cell:
Pour approximately 10 ml sample into the cell. Close the cell and ro-
tate it several times before throwing the sample away.
3
Repeat the rinsing procedure twice more.
