Accu-Chek Mobile User Manual page 152

5 using the meter as a diary
The meter calculates the average for a time
i
period even if the saved results cover a shorter
period. example: tests were only performed in
the last 5 days. In this case, the averages for all
three periods (7, 14 and 30 days) are calculated
from the results of the last 5 days.
If no average can be calculated, x.x is displayed
i
instead of a value and the number of results
(tests) is given as zero. This is the case if either
no results or only results which are not used for
calculation of averages were saved in the speci-
fied period.
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In the event that you changed the date or time,
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then performed a test and afterwards re-set the
date or time, the meter only calculates the aver-
age from the results which the meter saved in
uninterrupted chronological order. If the chrono-
logical order was interrupted, the earlier results
are ignored. If you have not performed any tests
since you made the change, x.x is displayed
instead of a value and the number of results
(tests) is given as zero.