15
STEP 9 a: Calibration of the pH sensor
- Remove the sensor from its soaking water indicated in Section 4.3, Step 2, and remove any excess water.
PLACE THE SENSOR IN THE pH7 SOLUTION, SHAKE, LEAVE INSIDE WITHOUT TOUCHING
pH 8.5 PRESS OK
Hold down the CAL/OK button for 5 SECONDS.
CALIBRATING pH 7
pH 7.25 (-90s)
QUALITY 100%
pH 4.0 PRESS OK
RINCE PROBE, PUT IN PH 4, MOVE IR AROUND STOP TOUCHING & LET INSIDE
pH 7.0 PRESS OK
Caution before soaking the sensor in
the pH 4 solution, rinse well using clean
water
CALIBRATION pH 4
pH 7.25 (-90s)
Tip
PRESS THE ESC KEY AT ANY
TIME TO EXIT THE
CALIBRATION PROCEDURE
Tip
PRESS THE ESC KEY AT ANY
TIME TO EXIT THE
CALIBRATION PROCEDURE
After pressing OK, the unit
continues operating normally