Accu-Chek Aviva Owner's Booklet page 20

3. Make sure the code number on the
display matches the code number
on the test strip container. If you
miss seeing the code number,
remove the test strip and reinsert it
into the meter.
Chapter 2: Control Testing
OR
4. Select the control solution you
want to test. You will enter the
level later in the test.
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5. Place the meter on a flat
surface, like a table.
6. Remove the control bottle cap
and wipe the tip of the bottle
with a tissue.