Error Message
Error Message Cause
Appears when the
batteries cannot
provide enough
power for a test.
Problem with the
meter.
Remove the strip
after applying blood
to the absorbent
hole.
Appears when a
used test strip is
inserted.
What To Do
Replace the batteries
immediately.
Repeat the test with
a new test strip. If the
meter still does not
work, please contact
the customer service
for assistance.
Re-test with a new
test strip.
Repeat with a new
test strip.
EN-20
Appears when
ambient
temperature is below
system operation
range.
Appears when
ambient
temperature is above
system operation
range.
Announcement of Error Message by
Universal Tone
• Hi or Lo Result: Results larger than 600 mg/dL (33.3
mmol/L) are represented as 999, i.e. three groups of nine
short beeps with pauses between the groups.
• Results lower than 20 mg/dL (1.1 mmol/L) are represented
as 000, i.e. three long beeps.
• Low Battery Warning: When the batteries are about to be
exhausted, 2 quick beeps are announced three times in
succession. This warning is sounded when the meter is
switched on.
• Other Errors: Other Error Messages are announced by 2
quick beeps four times in succession.
System operation
range is 10°C to
40°C (50°F to 104°F).
Repeat the test after
the meter and test
strip are in the above
temperature range.