Operation Manual

18
If the results are not within the control range printed
on the test strip vial, the meter and strips may not
be working properly. Repeat the control solution
test. When using Control Solution mode, very high
or very low readings will be displayed as a number
rather than a “HIGH” or “LOW” warning screen.
Incorrect unit of
measure.
Error in performing
the test.
Failure to shake the
control solution vial
well.
Improper meter coding.
Test strip deterioration.
• Meter malfunction.
Failure to discard the
first drop of control
solution and wipe the
dispenser tip clean.
Expired or
contaminated control
solution.
The meter, test strips,
or control solution are
too warm or too cold.
Testing blood in Control
Solution mode.
CAUTION: If you continue to get control solution test results
that fall outside of the range printed on the test strip vial,
the system may not be working properly. Do Not use the
meter. Call LifeScan Customer Service at 1 800 227-8862.
Control solution out-of-range results may be 
due to: