•
Submerge the electrode tip approximately 4 cm into
the solution, place the temperature probe as close as
possible to the electrode and stir gently.
•
The message NOT READY will blink for 12 sec-
onds.
Then, if the reading is not close to the selected
buffer, WRONG BUFFER and WRONG ELEC-
TRODE will blink alternatively; if the reading is close
to the selected buffer, the calibration is performed and
the display will show READY and blinking CFM.
18
TWO-POINT CALIBRATION
•
Press the CAL key. CAL and BUFFER tags will be
displayed.
•
The secondary LCD will display the value “7.01 pH”.
•
If a different calibration buffer is desired, use the ar-
row keys to change the displayed value.
19
