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Symbols, problems and error messages
Error messages
When an error occurs, an error message appears on the display and two beeps sound. Turn the meter off.
Depending on the situation, either briefly press the M button and S button or remove the test strip from
the meter to turn the meter off.
If your meter has been dropped, this can also lead to error messages.
If error messages occur frequently, contact your customer support and service centre.
Error message Cause and solution
• You did not slide the test strip in correctly or completely.
Hold the test strip so that the arrows printed on it and the green square face
upwards. Without bending it, gently slide the test strip into the test strip guide
in the direction of the arrows. You must feel the test strip lock into place.
• You slid a used test strip into the meter.
• You applied blood or control solution to the test strip too soon, i.e. before the
drop symbol flashed on the display.
Start the blood glucose test from the beginning with a new test strip.
• The measurement window is dirty.
Clean the measurement window (see page 44).
• Your blood glucose value may be very low.
If you have typical symptoms of a very low blood glucose, immediately follow
your healthcare professional’s instructions for such cases. Repeat the test
afterwards.
• You removed the test strip from the meter in order to apply blood and did not
slide it back in it within 20 seconds.
• The test strip was bent or moved while testing was in progress.
• You applied too little blood or control solution to the test strip.
• You waited too long before applying a second drop of blood or control solution.
Start the blood glucose test from the beginning with a new test strip.
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