6
2.6.
Specification of the type of pH corrector used
Possible settings :
(acidic)
,
(basic)
.
Default setting :
.
1)
Make a long press on the right key until the message flashes.
2)
Press the up or down key x times until the message flashes.
3)
Press the right key : the flashing message corresponds to the type of pH corrector recorded.
4)
Select a type of pH corrector with the up/down keys.
5)
Press the right key to validate : the type of pH corrector selected freezes briefly, then the message flashes.
6)
Press the left key twice to return to the default display.
2.7.
Specification of the pH concentration rate used
Possible settings :
from to (i.e. from 5% to 55%, in steps of 1%).
Default setting :
1)
Make a long press on the right key until the message flashes.
2)
Press the up or down key x times until the message flashes.
3)
Press the right key : the flashing value is the pH concentration rate recorded.
4)
Select a value with the up/down keys.
5)
Press the right key to validate : the selected value freezes briefly, then the message flashes.
6)
Press the left key twice to return to the default display.
2.8.
Manual injection of pH corrector
This function also allows you to prime the peristaltic pump.
Possible settings of the injection duration :
from to (i.e. from 1 s to 60 s, in steps of 1 s),
then from to (i.e. from 1 min 10 s to 9 min 50 s, in steps of 10 s).
Setting the default injection duration :
.
To set the injection duration and then start the injection :
1)
Make a long press on the right key until the message flashes.
2)
Press the right key : the default injection duration flashes (60 s).
3)
Select an injection duration with the up/down keys.
4)
Press the right key to validate the duration and start the injection : the injection duration is displayed in real
time (time countdown).
To stop the injection before the time has elapsed, press the left or right key.
5)
When the injection is complete, press the left key twice to return to the default display.
2.9.
Adjustment of the pH measurement
Possible settings :
from 6.5 to 7.5, in steps of 0.1.
1)
Make a long press on the right key until the message flashes.
2)
Press the up or down key x times until the message flashes.
3)
Press the right key.
4)
Select a value with the up/down keys.
5)
Press the right key to validate.
6)
2 Possibilities :
The message is displayed briefly, then the message flashes : the adjustment is complete.
The message is displayed briefly, then the message flashes : the adjustment failed. In this case, visually
check the state of the pH probe, then attempt an adjustment again, several times if necessary. If the
adjustment still fails, change the pH probe and perform a pH probe calibration.
7)
Press the left key twice to return to the default display.
