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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 cuvette: the liquid in the cuvette
forms a concavity on the top; the bottom of this concavity
must be at the same level of the 10 mL mark.
• Proper use of the powder reagent packet:
(a)
use scissors to open the powder packet;
(b)
push the edges of the packet to form a spout;
(c)
pour out the content of the packet
Dead battery:
This indicates that the battery is dead and must
be replaced. Once this indication is displayed, normal operation of
the instrument will be interrupted. Change the battery and restart
the meter.
GENERAL TIPS FOR AN ACCURA
TE MEASUREMENT
• Proper use of dropper:
(a)
to get good reproducible results, tap the dropper on the table for several times and wipe
the outside of the dropper with a cloth.
(b)
always keep the dropper bottle in a vertical position while dosing the reagent.
