Sper-scientific 850045 Dissolved Oxygen - DO Pen Manuale Utente Scaricare il pdf (Pagina 6)

Perform the calibration procedure in an open and well

ventilated area to achieve the best possible results. Once

the calibration is complete the meter should read approx.

20.9 as this is the typical amount of O

in the air.

CALIBRATION

CAL

Flashing

Counts down

from 30 to 0

6. Press and release the HOLD button (Fig., 1-3) - the

display will read HOLD.

7. Press and release the REC button (Fig., 1-4) - the

display will show a flashing CAL indicator and the upper

value will change to 30, then countdown to 0 (takes 30

seconds).

8. Once the countdown has been completed, the End

indicator will be displayed momentarily, then display will

return to the normal display as shown on page 3.

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Sper-scientific 850045 Dissolved Oxygen - DO Pen Manuale Utente Pagina 6