Hanna Instruments HI 98703 - Manual (Page 14)

14
In order to index a cuvette follow the next steps:
• Fill the cuvette with high quality water (<0.1
NTU) up to the line.
• Clean and oil the cuvette as described before.
• Turn the instrument ON.
• Insert the cuvette into the instrument and press
READ . Record the reading.
• Open the instrument lid, slightly rotate the
cuvette and take a new reading.
• Repeat the last step until you read the lowest
NTU value. Alternatively, keep READ pressed
and, after the first value is displayed, open the
lid and start rotating the cuvette until the
lowest NTU value is displayed.
• Mark this position on the thicker white band on
the top of the cuvette with a water resistant
pencil.
• Always use this position to align it with the
sign on the instrument top.