4
EN
pH Link module
Dual Link module
pH minus dosage
Proporti onal 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 calibrati on
1 point, pH 7.5
ACL sensor tolerances
/
Flow speed 2 metres/second -
5 bar / 60°C
/
10 ppm maximum (shock chlorinati on)
Measurement scale & ACL sensor accuracy
/
100 mV to 1000 mV / ± 10 mV
ACL sensor calibrati on
/
1 point, 700 mV
pH and ACL sensor response ti me
< 15 seconds
Dimensions (w x h x d)
28.5 x 15.5 x 7.5 cm
Weight (module only)
1 kg
Protecti on index
IP23
2. Installation
2.1 Preparing the pool: water balance
The Zodiac® electrolyser or hydroxinator are designed to disinfect pool water.
With the pH Link module, it automati cally maintains the pH value of your pool.
With the Dual Link module (electrolyser only), it automati cally maintains the pH value and chlorine level (ACL or Redox
potenti al) of your pool.
It is essenti al 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 fi rst days of
operati on or during the season the pool is in use.
Even if it is an automati c control system, it is essenti al 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
Deacti vate dosage
or add pH+
Automati c
(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
buff ering 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
/
Parti ally empty the pool
and refi ll it
Quarterly
Metals
(Cu, Fe, Mn…)
mg/L or
ppm
± 0
/
Add a metal fi xer
(Metal Free)
Quarterly
