Accu-Chek Compact Plus Manuel De L'utilisateur page 89

If the test does not start despite the fact that you have held the
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blood drop against the test strip, the test strip drew up too little
blood. In this case you can, within a certain period, draw up more
blood with the test strip (see the package insert that came with
the test strip drums).
If the meter beeps not once but several times when displaying
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the result, either the hypo indicator is turned on and the result is
below the limit (see Chapter 3.10) or Acoustic Mode is turned on
(see Chapters 3.3 and 6).
Testing blood glucose
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