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The instructions listed below should be carefully followed during testing to ensure best accuracy.
• Color or suspended matter in large amounts may cause
interference, therefore these should be removed by
treatment with active carbon and by prior filtration.
• For a correct filling of the cuvet: the liquid in the cuvet
forms a concavity on the top; the bottom of this concavity
must be at the same level of the 10 mL mark.
• It is important that the sample does not contain any debris.
This would corrupt the reading.
• Each time the cuvet is used, the cap must be tightened to
the same degree.
• Whenever the cuvet is placed into the measurement cell,
it must be dry outside, and completely free of fingerprints,
oil or dirt. Wipe it thoroughly with
HI 731318
or a lint-
free cloth prior to insertion.
GENERAL TIPS FOR AN ACCURATE MEASUREMENT
Battery low:
The battery must be replaced soon.
Dead battery:
This indicates that the battery is dead and must
be replaced. Once this indication is displayed, the meter will
lock up. Change the battery and restart the meter.
