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