Innowater pH BASIC Operating Manual page 6

You can set both point and choose the percentage of dosage for each of them. To
do this, press the cursor with the MENU key in the parameter you want to modify
and act with the arrows to change the value. Press OK to save the data and exit
the sub-menu.
By choosing the set points you will be defining at the same time the required
dosing volume and the response delay after dosing, both of them depending on the
size of your pool. For example, if your pool has a high volume you should establish
high percentages of dosing. The response time in the pH measurement of your pool
can be considered when setting point A of the setpoint, stopping
before reaching the desired pH value. For example, to obtain a pH = 7.0 and avoid
overdosing, set the dosage stop in a higher value:
Each pool needs more or less acid, as they are more or less reactive to the dosage;
at the beginning at least, you may need to correct the setpoints several times.
1.2.— 1.3. pH probe Calibration
pH Configuration
2 Cal pH 4
pH probes require a calibration before their first use and then they need to be
calibrated periodically. This is because different probes have different responses
and the response of the same probe inevitably varies with time.
The calibration consists of measuring the response of the probe introducing it in
two different buffer solutions in order to deduct the pH of any other solution, in our
case, the pH of the pool water.
The calibration of the probe is carried out using the two buffer solutions supplied
(pH4 and pH7) and entering the submenus "2 Cal pH4" and "3 Cal pH7"
respectively.
Enter the sub-menu 2 Cal pH4 by pressing OK key, it will show the following
screen:
pH 4 Calibration
Lec: 4.05
The value next to Lec (on the left) indicates the current pH value measured by the
probe.
pH Basic
A: pH 7,2
pH Configuration
3 Cal pH 7
pH 7 Calibration
4.00 Lec: 7.05
0%
7.00
5
the dosage