Roche Accu-Chek Performa Manuel D'utilisation page 37

Display Action
The temperature is above or below the proper range for the system. Refer to the test
strip package insert for system operating conditions. Move to an area with the
appropriate conditions, wait 5 minutes, and repeat the blood glucose or control test.
Do not artificially heat or cool the meter.
The battery is almost out of power. Change the battery now. If the message reappears
after the battery has been replaced, remove the battery again, press any meter
button, then reinsert the battery.
The time and date settings may be incorrect. Make sure the time and date are correct
and adjust, if necessary.
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Maintenance and Troubleshooting
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