Accu-Chek performa Owner's Booklet page 24

You need the meter, a test strip, a lancing device designed for AST, and a lancet.
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1. Prepare your lancing device.
2. Insert a test strip into the meter in the
direction of the arrows. The meter turns
on.
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.