1. Press CAL, and 7.0 flashes in the window
2. Put the meter in your 7.0 calibration fluid and wait a couple of minutes
3. Once settled press READ and then 4.0 flashes in the window
4. Rinse the meter, wipe off the water, then put it into your 4.0 calibration fluid and wait
5. Once settled press READ
možda pomogne oko tog adwa 100 AD iako... prošlo je dosta vremena od tvog pitanja
2. Put the meter in your 7.0 calibration fluid and wait a couple of minutes
3. Once settled press READ and then 4.0 flashes in the window
4. Rinse the meter, wipe off the water, then put it into your 4.0 calibration fluid and wait
5. Once settled press READ
možda pomogne oko tog adwa 100 AD iako... prošlo je dosta vremena od tvog pitanja