
Servicing
Instruction Manual AquaMaster
12745E/4
73
WORKSTEP
ADDITIONAL INFO / IMAGES
5.3: Press the
Initiate
button. The recalibration
begins.
If the adjustment was successful, confirm with
Adjustment OK
. This completes the adjust-
ment.
If the adjustment was not OK, the following
messages may appear:
running...
Cause: Values not yet stable.
Diff. too small
Cause: The nominal values of the calibration
solutions are too close to each other.
Action:
Correct calibration solution used.
Calibration not OK.
Out of tolerance
Cause: Current actual value is too far from the
nominal value.
Action:
Ensure that the set nominal value and the
nominal value of the calibration solution
match.
Clean sensor.
If the quality indication af-
ter calibration is between 100
and 35, the age of the sensor is
the reason.
If the calibration was not correct,
30 is shown at quality. The cali-
bration must be repeated for
both nominal values.
6.
Rinse off the pH sensor with distilled water and
dab dry.
7.
Perform recalibration for nominal value 2.
Change to
Nom. val. 2
by pressing the arrow
key bottom right and repeat steps 3 .. 6 with
second calibration solution.
8.
Install pH sensor in measuring cell block in ac-
cordance with Section 8.1.3.