Blood Glucose Measurement
Symptom
Cause
Batteries
exhausted.
The device
does not
display a
Test strip inserted
message after
upside down or
inserting a
incompletely.
test strip.
Defective device or
test strips.
Insufficient blood
sample.
Defective test strip.
The test does
not start after
Sample applied
applying the
after the device
sample.
is automatically
turned off.
Defective device.
What To Do
Replace the battery
immediately and reset
date and time on the
meter setting.
Insert the test strip with
contact bars end first
and facing up.
Please contact customer
service.
Repeat the test using a
new test strip with larger
volume of blood sample.
Repeat the test with a new
test strip.
Repeat the test with a
new test strip. Apply
sample only when the
meter displays "Take a
blood sample. "
Please contact customer
service.
EN-22
Error in performing
the test.
Control solution
vial was poorly
shaken.
Expired or
The control
contaminated
solution
control solution.
testing result
is out of
Control solution
range.
that is too warm or
too cold.
Defective test strip.
Device
malfunction.
Read instructions
thoroughly and repeat
the test again.
Shake the control
solution vigorously and
repeat the test again.
Check the expiration
date of the control
solution.
Control solution, device,
and test strips should
be at room temperature
(20°C to 25°C / 68°F to
77°F) before testing.
Repeat the test with a
new test strip.
Please contact customer
service.