5)Press the " Hold button " ( 3-3, Fig. 1 ) once.
The " CLr " will flashing, following show " End ".
then return the normal measurement screen and
finish the " Calibration clear " procedures.
screen 4
CLr flashing
CAL
screen 5
End
5. MEASURING PROCEDURE
5-1 pH measurement
After the pH electrode is calibrated
( section 4-3 ) , the unit is ready for measuring.
1)Power on the meter by pressing the " Power button "
( 3-2, Fig. 1 ).
2)Place the electrode into the measured solution, little
shake the electrode and wait a few seconds to let the
ATC ( automatic temperature compensation ) sensor
to stabilize with the temperature of the solution..
The LCD will show pH value ( up main display ) and
the temperature value ( lower display ) at the same
time.
10
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