User`s manual

98
Farbe: P 249 – Prüfmittelnummer: 126 X
Checking your meter
99
Checking your meter
6
 Take a bottle of control solution.
 Open it and wipe the tip of the dropper with a clean paper towel in
order to remove any dried-on residues.
 Apply a drop of control solution to the surface of a clean, easily
washable object made of glass, porcelain or stainless steel (e.g. a
plate or spoon).
i
Use only control solution that has been freshly applied to the sur-
face of the object. The control solution must not be left exposed
on the surface for any length of time. If it is, the control solution
may give results that are too high.
 Hold the meter so the test strip is pointing downwards (see illustra-
tion).
Always hold the meter so the test strip is pointing downwards
when you are applying control solution to the test strip. Continue
to hold the meter with the test strip pointing downwards until you
have ejected it.
If you hold it so the test strip is pointing upwards or sideways or
you put the meter down with the test strip still in it, control solu
-
tion can enter the meter and contaminate it.