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H0493700.A - EN - 2014-07
4
pH Link module
Dual Link module
pH minus dosage
Proportional cyclic
pH sensor tolerances
Flow speed 2 metres/second - 5 bar / 60°C
Measurement scale & pH sensor accuracy
pH 0.0 to pH 12.0, ± 0.1 pH
pH sensor calibration
1 point, pH 7.5
ACL sensor tolerances
/
Flow speed 2 metres/second -
5 bar / 60°C
Measurement scale & ACL sensor accuracy
/
100 mV to 1000 mV / ± 10 mV
ACL sensor calibration
/
1 point, 700 mV
pH and ACL sensor response time
< 15 seconds
Dimensions (w x h x d)
28.5 x 15.5 x 7.5 cm
Weight (module only)
1 kg
Protection index
IP23
2. Installation
2.1 Preparing the pool: water balance
The Zodiac® electrolyser or MagnaPool™ hydroxinator is designed to disinfect the water in the pool by means of its salt
chlorination function.
With the pH Link module, it automatically maintains the pH value of your pool.
With the Dual Link module (electrolyser only), it automatically maintains the pH value and chlorine level (ACL or Redox
potential) of your pool.
It is essential that the pool water balance is controlled and adjusted before installing the appliance. Making sure that the
pool water balance is correct from the very start will reduce the likelihood of encountering problems on the first days of
operation or during the season the pool is in use.
Even if it is an automatic control system, it is essential to analyse the water regularly to check the water balance
parameters.
Unit
Recommended
values
To increase
To reduce
Test frequency
(in the season)
pH
/
7.2 – 7.4
Deactivate dosage
or add pH+
Automatic
(pH minus Perfect pH-
or pH-)
Weekly
Free
chlorine
mg/L or
ppm
0.5 – 2
Increase ACL
set point or add
chlorine
Decrease ACL set point
or turn off the unit
Weekly
TAC
(alkalinity or
buffering power)
°f (ppm)
8 – 15
(80 – 150)
Add alkaline
corrector
(Alca+ or TAC+)
Add hydrochloric acid
Monthly
TH
(calcium hardness)
°f (ppm)
10 – 30
(100 – 300)
Add calcium
Add a calcium carbonate
sequestering agent
(Calci-) or carry out
carbonate removal
Monthly
Cyanuric
acid
(stabiliser)
mg/L or
ppm
< 30
/
Partially empty the pool
and refill it
Quarterly
Metals
(Cu, Fe, Mn…)
mg/L or
ppm
± 0
/
Add a metal fixer
(Metal Free)
Quarterly