
3. If the control solution test result is out of range:
POSSIBLE CAUSE W HAT TO D O
Error in performing the test.
Improper code number. Check if the code number on
the display matches the code
number on the test strip vial.
Do not shake the control
solution vial very well.
Shake the control solution
vigorously and repeat the test
again.
Expired or contaminated
control solution.
Control solution that is too
warm or too cold.
Test strip deterioration. Repeat the test with a new
test strip.
Meter malfunction. Contact local customer
service.
Read the instruction thor-
oughly and repeat the test
again.
Check the expiration date or
the discard date of the control
solution.
Control solution, meter, and
test strips should come to
room temperature (20-
25°C/68-77°F) before testing.
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