number displayed on the Meter by
repeatedly pressing Code Button “C” or
holding it down until the correct code
appears in the display. (See Chapter 4,
Coding the Meter, for more information.)
ٗ
✔
The Test Strips have expired. Check
the expiration date on the Test Strip
package. If the expiration date has
passed, discard the package and repeat
the test with a Strip from a new package,
being sure to reset the code number on
the Meter.
ٗ
✔
The Test Strip vial was opened for
the first time more than 4 months ago.
Discard Strips and open a new vial, or
purchase individually foil-wrapped Test
Strips.
ٗ
✔
The Test Strip Holder and Test Area
are dirty. (See Chapter 8, Cleaning and
Maintaining the Meter.)
ٗ
✔
The test was performed outside of
the acceptable operating conditions for
testing. The ONE TOUCH
®
II Meter may
be used between 15°C and 35°C
(59°F–95°F), with relative humidity
under 90%.
ٗ
✔
The test result number is higher than
33.3 and the letters mm do not appear
before the result. This means you may
have accidentally changed the unit of
measurement or an electronic malfunc-
tion may have caused the Meter to reset
to mg/dL. (See Chapter 9, Setting Date,
Time, and Other Special Functions, to
reset the unit of measurement to mmol/L.)
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