Roche Accu-Chek Performa Manuel De L'utilisateur page 51

2. Press and hold
about four seconds to
enter the set-up mode.
"Set-up" and the hour
flash on the display.
3. Press and release
for
repeatedly until "OFF"
and the flashing "set-up"
and
display.
appear on the
4. Press and release
or to switch
between "On" and "OFF."
Press and release
set the option.
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to