Roche Accu-Chek Performa Manuel De L'utilisateur page 63

Not enough blood or
control solution was
drawn into the test strip
for measurement or was
applied after the test had
started. Discard the test
strip and repeat the test.
The code chip is from an
expired lot of test strips.
Ensure the code chip
number matches the code
number on the test strip
container. Make sure the
time and date in the meter
are correct.
Blood or control solution was
applied to the test strip before
the flashing drop symbol
appeared on the display.
Discard the test strip and
repeat the test.
An electronic error occurred
or, in rare cases, a used
test strip was removed and
reinserted. Turn the meter off
and on, or take the battery out
for 20 seconds and reinsert
it. Perform a blood glucose
or control test. If the problem
persists, call Roche.
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