Camlab CW8200, Manual

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Press [Read/Avg] or [Read] key.
Note the displayed result.
Rotate the vial in the sample chamber about 45°.
Place the cover on the instrument.
Press [Read/Avg] or [Read] key.
Note the displayed result.
Repeat this procedure until the smallest NTU value is
reading.
Mark the vial at this point. Use this orientation mark for all
further measurements.
Note:
Assess the indication "Underrange" as 0.00 NTU.
2.3.8.6 Indexing a set of sample cells
Fill several clean and dry vials until the mark with dilution water.
Cap the vials.
Hold the vials by the cap and wipe with a smooth, lint-free cloth to remove Water spots
and finger prints.
Switch the turbidimeter on.
Place the first vial in the sample chamber making sure that the marks are aligned.
Place the cover on the instrument.
Press [Read / Avg] or [Read] key.
Note the displayed result. 1.
2.
3.
4.
5.
6.
7.
8.
Read
Read
Avg
or
Read
Avg
or
Read
1.02 NTU
*
or 1.00 NTU
1.00 NTU or
1.02 NTU
*