CCEI
Limpido Z2
v1.0
Page 6
START-UP
NB: ONLY REGULAR ANALYSIS ENABLES THE RIGHT CONFIGURATION OF THE APPLIANCE
Carefully following the stages below will guarantee a problem-free start-up.
SALT
LEVEL
CONTROL
Limpido Z2®
is designed to operate with a water conductivity corresponding to a salinity rate between 1.5g/l
and 3,5g/l at 25°C. To accurately control the salt rate of your pool, we recommend that you use a conductivity
tester. This instrument is very easy to use and gives you a direct reading of the salt rate in g/l. There are also
analysis tabs which effectively monitor the salinity of your water.
When the salinity is unsuitable,
Limpido Z2
®
shuts down production and lights up the "excessive production"
indicator in the event of excess salt or "under production" in the event of a lack of salt. If one of these
indicators is displayed, firstly check that the cell is correctly connected to the casing and that it is in a good
condition and make any necessary corrections to the pool water.
The water conductivity is proportional to salinity, but also depends on temperature in the region of 2.2% per
degree Celsius.
10°C
15°C
20°C
25°C
30°C
35°C
40°C
Mini
3,3
3,1
2,8
2,5
2,2
2,0
1,7
IdEal
4,7
4,3
3,9
3,5
3,1
2,7
2,3
Max
6,7
6,1
5,6
5
4,5
3,9
3,4
salinity in g/l
At 35°C, the max salt rate therefore goes from 5g/l to
3.8g/l
.
P
H
REGULATION
The pH or potential hydrogen measures the degree of acidity of water. Its value is between 0 and 14. A solution
with a pH equal to 7 is neutral. If it is lower than 7, the solution is acidic and if it is greater the solution is
deemed to be basic or alkaline.
For the comfort of swimmers, the efficiency of the treatment and reliability of the installation, the pH of the
pool water must be maintained at around 7.
A pH between 6.8 and 7.6 is generally deemed to be correct.
Excessively acidic water (pH <6.8) is aggressive for mucus membranes, promotes the corrosion of metal parts
and can damage PVC (liners).
Excessively basic water (pH > 7.8) can also be aggressive
(caustic) and significantly reduces the efficiency of the
chlorine. Thus, when the pH goes from 7.2 to 8.2, the
percentage of active chlorine goes from 70% to 20%.
Moreover, the pH systematically tends to increase due to
the presence of salt in the water, which renders the pH
regulation particularly useful.
To maximise the efficiency of treatment, it is therefore
essential to maintain the pH of the water between 7.0 and
7.6.
STABILISING AGENT
Chlorine is gaseous at ambient temperature. Its solid form (tablets, powder, etc.) is obtained by a combination
with a cyanuric acid molecule. This cyanuric acid acts as a stabilising agent as it protects the chlorine from any
damage that solar ultraviolet (UV) rays may cause. On the other hand, this cyanuric acid is not consumed and
inexorably accumulates in pools treated with chlorine tablets and ends up inhibiting the chlorine potential. For
public pools, the maximum cyanuric acid concentration is established at 80 ppm (or mg/l).
Treatment by salt electrolysis prevents this overdose of cyanuric acid; however, it may be useful to add
between 25 and 50 ppm (or mg/l) of stabilising agent when the pool is widely exposed to the sun and when the
chlorine concentration is insufficient.
Indeed, in full sunlight, 90% of the free chlorine is destroyed in two to three hours in the absence of cyanuric
acid while this proportion is reduced to 15% with 30 ppm of stabilising agent (cyanuric acid).
Chlore Libre Actif
0
10
20
30
40
50
60
70
80
90
100
5,5
6,0
6,5
7,0
7,5
8,0
8,5
9,0
9,5
pH
%
