3.2 Rule for injecting pH Perfect
Proportional cyclic dosing - exclusive to Zodiac
• To reach the set point in the best possible conditions (the quickest, but with the least possible
corrective solution), your pH Perfect automatically detects the difference of the pH value measured in
the pool compared with the desired set point (default value = 7.4 pH).
• This proportional injection is cyclic and the cycle time is 10 minutes.
What will change in dosing is the different times of injection and pause.
The proportions are adjusted automatically and the different dosages are distributed in steps of
0.15 pH.
E.g.: For 4 cycles with a set point of 7.4 pH and acid regulation (standard alkalinity levels):
pH
≥
7,55
: 20% injection (2 minutes) & 80% pause (8 minutes)
pH
≥
7,70
: 50% injection (5 minutes) & 50% pause (5 minutes)
pH
≥
7,85
: 75% injection (7 minutes 30 secondes) & 25% pause (2 minutes 30 secondes)
pH
<
7,90
: 100% injection (10 minutes, continuous)
pH
+
8,20
8,15
8,10
8,05
8,00
7,95
7,90
7,85
7,80
7,75
7,70
7,65
7,60
7,55
7,50
7,45
7,40
7,35
7,30
-
Evolution of pH in the pool
Dosage
cycle times
100%
75%
50%
20%
Set point = 7.4 pH
10 min
10 min
10 min
10 min
The injection rule is, of course, inversed if alkaline dosing is chosen.
3.3 Adjusting the dosage depending on alkalinity
Water’s pH is potentially unstable. Its stability depends on the alkalinity of the water (also called total
alkalinity). If the total water hardness is low (< 100 ppm), the pH will be potentially unstable and it will be
the opposite if the total water hardness is high (> 150 ppm).
In order to always have an optimal balance, the pH Perfect has a function making it possible to adjust
the quantities of potentially injected corrector product depending on the total water hardness (see
paragraph 4.5).
8
Adjustments: “Settings” menu
4.1 Language
The default language displayed on the pH Perfect is French (A).
You can choose between 6 languages for the LCD display: French, English,
German, Spanish, Italian and Dutch.
To change language when in the “Settings” menu, enable the option list by
pressing the “CAL/Enter” button (a small arrow appears on the right of the
screen and the language message fl ashes). Then select the language using the
“
p
” and “
q
” navigation buttons.
Accept the choice by pressing the “CAL/Enter” button.
4.2 “Settings” menu - Default parameters
The pH Perfect is factory preset with the following settings (suitable for most cases):
a. Language:
French
b. Set point:
pH = 7.4
c. Dosage = acid (injection when the pH is higher than the set point)
d. Alkalinity level =
standard
e. “OFA” over-feed protection:
4 hours
f. Calibration =
enabled in 2 points
(pH7 & pH4)
g. Detection that fi ltration is in progress:
enabled
Pour To access the “Settings” menu, the appliance must be ON. Simultaneously
press the “CAL/Enter” and “SET/Esc” buttons for about 5 seconds until the LCD
screen displays “Settings” (B).
This “settings” menu gives access to the following adjustments:
o
Language
o
Set point
o
Type of dosage
o
Alkalinity level
o
Time before triggering the “OFA” over-feed protection
o
Type of calibration
o
Detection that fi ltration is in progress
Pour To exit the “Settings” menu, press the “SET/Esc” button and select “Yes”
or “No”, using the “
p
” and “
q
” navigation buttons to save the new settings or
not. Accept the choice by pressing the “CAL/Enter” button (C).
4.3 Set point
The default set point on the pH Perfect is 7.4 pH (D)
To change it when in the “Settings” menu, enable the option list by pressing the
“CAL/Enter” button (the pH value fl ashes). Then select the value chosen using
the “
p
” and “
q
” navigation buttons. The adjustment is made in increments of
10 mV.
Accept the choice by pressing the “CAL/Enter” button.
It is also possible to directly access the set point by holding down the “SET/Esc” button (keep pressing
while changing the setting using the “
p
”
and
“
q
” navigation buttons).
4
(A)
(B)
(C)
(D)
9
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27
EN
