Zodiac PH Expert User manual

H0434900.G - 2019/11
More documents on:
www.zodiac.com
EN
- English
pH dosing system
Translation of the original instructi ons in french

1
EN


• Failure to respect the warnings may cause serious damage to the pool equipment
or cause serious injury, even death.
• Only a person quali ed in the technical  elds concerned (electricity, hydraulics or
refrigera on) is authorised to perform this procedure. The quali ed technician
working on the appliance must use/wear personal protec ve equipment (such as
safety goggles and protec ve gloves, etc.) in order to reduce the risk of injury oc-
curring when working on the appliance.
• Before servicing the appliance, ensure that it is switched o and isolated from the
power supply circuit.
• The appliance is intended to be used only for swimming pools and spas; it must not
be used for any purpose other than that for which it has been designed.
• This appliance is not intended for use by children.
• This appliance is not intended for use by persons (including children, aged 8 years
and above) with reduced physical, sensory or mental capabili es or lack of experi-
ence and knowledge, unless:
- they have been given supervision or instruc on, by a person responsible for their
safety, concerning use of the appliance in a safe way by a person responsible for
their safety; and
- they clearly understand the hazards involved.
• Children should be supervised to ensure that they do not play with the appliance.
• The appliance must be installed according to the manufacturer’s instruc ons and
in compliance with all applicable local and na onal standards. The installer is re-
sponsible for installing the appliance and for compliance with na onal installa on
regula ons. Under no circumstances may the manufacturer be held liable in the
event of failure to comply with applicable local installa on standards.
• For any work other than the simple user maintenance described in this manual, the
product should be referred to a quali ed professional.
• Incorrect installa on and/or use may cause serious damage to property or serious
injuries (possibly causing death).
• All equipment, even postage and packing paid, travels at the risks and perils of the
recipient. The la er shall issue reserves in wri ng on the carrier's delivery slip if
damage is detected, caused during transport (con rma on to be sent to the car-
rier within 48 hours by registered le er). In the event that an appliance containing
coolant has been turned on its side, men on your reserva ons in wri ng to the
carrier.
• If the appliance su ers a malfunc on, do not try to repair it yourself; instead con-
tact a quali ed technician.
• Refer to the warranty condi ons for details of the permi ed water balance values
for opera ng the appliance.
• In addi on to using spare parts manufactured by unauthorised third-party manu-
facturers, deac va ng, elimina ng or by-passing any of the safety mechanisms in-
tegral to the appliance, will automa cally void the warranty.
• Do not spray insec cide or any other chemical (infl ammable or non-infl ammable)
in the direc on of the appliance, as this may damage the body and cause a  re.
• Do not touch the fan and/or any moving parts and do not insert anything, including
your  ngers in the vicinity of the moving parts while the appliance is in opera on.

2

This symbol means that your appliance must not be thrown into a normal bin. It will be selecvely collected
for the purpose of reuse, recycling or transformaon. Any substances it may contain which are potenally
dangerous to the environment shall be eliminated or neutralised.
Request informaon on recycling procedures from your retailer.

• The electrical supply to the appliance must be protected by a dedicated 30
mA dierenal residual current protecon device (RCD), complying with the
standards and regulaons in force in the country where it is installed.
• Do not use an extension cord to plug in the appliance; connect the appliance
directly to a suitable power supply circuit.
• Before carrying out any operaons, check that:
- The voltage indicated on the rang plate of the appliance corresponds to the
mains voltage,
- The power grid is adapted to the power requirements of the appliance, and is
grounded.
- The plug (where applicable) is suitable for the socket.
• In the event of abnormal funcon or signs of overheang such as a burning
odour from the appliance, turn it of immediately, unplug / disconnect it from
its power supply and contact a professional.
• Before accessing the enclosure for any reason, ensure that all power to the
appliance and also power to any accessories or external devices which may
be connected to the appliance, is disconnected from the mains power supply.
• Do not disconnect and reconnect the appliance to the power supply when in
operaon.
• Do not pull on the power cord to disconnect it from the power supply.
• If the supply cord is damaged, it must be replaced by the manufacturer, its
service agent or similarly qualied persons in order to avoid a hazard.
• Do not aempt to carry out any servicing or maintenance operaons with
wet hands or while the appliance is wet.
• Ensure that all terminals for mains power are free in good condion and free
of corrosion and/or dirt/debris.
• For any component or sub-assembly containing a baery: do not recharge or
dismantle the baery, or throw it into a re. Do not expose it to high tempera-
tures or direct sunlight.
• In stormy weather, disconnect the appliance from the power supply to pre-
vent it from suering lightning damage.
• Do not immerse the appliance in water (with the excepon of cleaners) or
mud.

3
CONTENTS
 4
1.1 I Descrip on 4
1.2 I Technical speci ca ons 4
1.3 I Dimensions and marking 5
 6
2.1 I Preparing the pool 6
2.2 I Hydraulic connec ons
8
2.3 I Electrical connec ons 10
 11
3.1 I Control box presenta on 11
3.2 I Checks before commissioning 11
3.3 I Calibra ng the sensor 12
3.4 I Priming the peristal c pump 13
3.5 I Se ngs 13
 16
4.1 I Changing the peristal c tube 16
4.2 I Winterizing 16
 17
5.1 I Appliance behaviour 17
5.2 I Displays 18
 


 
     

 


• Write down your retailer's contact details to help you  nd them more easily and  ll in the "product"
informa on on the back of the manual; your retailer will ask you for this informa on.
EN

4


AControl box
BSuc on cane
CPipework installa on kit
DpH sensor
E Threaded sensor holder
FFixture collar
GWall-moun ng bracket kit
HPack of pH4, pH7 bu er solu ons

Power supply voltage 220-240 VAC-50 Hz - 1-phase
Electric output 9W
Protec on index IP65
Maximum peristal c pump fl ow 1.5L/hr
Maximum counter pressure at the injec on point 1.5 bar
Correc on acidic or basic
pH sensor tolerance 5 bar / 60°C / maximum speed 2m/s
Measurement scale 0.0 - 14.0 pH (± 0.1 pH)
pH sensor response  me 15 seconds

5

Peristal c pump
Master switch
BNC connector socket for pH sensor
Cable gland for direct coupling with the  ltering system
Connector for suc on tube
Connector for injec on tube
Cable gland for suc on cane cable
Cable gland for 230Vac/50Hz power cord
EN

6


2.1.1 Water balance
It is essen 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  rst days of opera on or during the season the pool is in use.
Even though it is an automa c regula on system, it is essen al to carry out regular water analyses
to check the water balance parameters.
Unit Recommended
values To increase To decrease Test frequency
(during the
season)
pH /7.2 – 7.4
Use the appliance in
"alkaline" dosage mode
and/or increase the set
point.
Use the appliance in
"acidic" dosage mode
and/or decrease the
set point.
Weekly
Free
chlorine
mg/L
or ppm 0.5 – 2 Add chlorine (manually
or using an automated
system)
Stop the release or
produc on of chlorine Weekly
TA
(alkalinity
or bu er
capacity)
°f (ppm) 8 – 15
(80 – 150)
Add alkalinity corrector
(Alca+ or TA+) Add hydrochloric acid Monthly
HL
(hardness
level)
°f (ppm) 10 – 30
(100 – 300) Add calcium chloride
Add a scale
sequestering
agent or carry out
decarbona on
Monthly
Cyanuric
acid
(stabiliser)
mg/L
or ppm < 30 / Par ally empty the
pool and re ll it Quarterly
Metals
(Cu, Fe,
Mn…)
mg/L
or ppm ± 0 / Add a metal
sequestering agent Quarterly

7
2.1.2 Appliance injec on programme
Example of 4 cycles with a set point at 7.4 pH and acid regula on (standard alkalinity):
 : 20% injec on (2 min) & 80% pause (8 min)
 : 50% injec on (5 min) & 50 % pause (5 min)
 : 75% injec on (7 min 30 sec) & 25% pause (2 min 30 sec)
 : 100% injec on (10 min)
• The injec on programme is of course inverted when a basic dosage is selected.
• Ac ve chlorine is more effi cient with the correct pH level.
• Maximum release rate is 1.5 L/h. This dosage ensures that the set point is reached quickly and
accurately.
• This propor onal injec on is cyclic and the cycle dura on is 10 minutes. The
dose will change according to the distribu on of injec on  mes and pauses.
The propor onality adjusts automa cally and the balancing between the
di erent doses is made in 0.15 pH steps.
2.1.3 Adjus ng dosage according to alkalinity
The pH level of water is poten ally unstable. Its stability is governed by the level of water alkalinity (also called "TA" for
‘‘Total alkalinity’’). If the TA is low (< 100 ppm), the pH will become poten ally unstable and conversely if the TA is high
(>150 ppm).
In order to always achieve op mal water balance, the appliance has a feature that allows users to adjust the quan ty of
corrector product poten ally injected depending on the water TA (see §"3.5.4 "Dosage" menu")
EN



2.2.1 Sensor and injec on point loca on
• The pH sensor must be installed more than 30 cm before or a� er a piping bend. Use the op onal
POD kit if necessary. Failing to follow this posi oning can lead to incorrect or unstable measure-
ments.
• The  p of the pH sensor must not be in contact with the pipe.
• Never install a pH sensor before the  ltra on pump or between the pump and the  lter. This
would cause random readings and a shortened service life.
• The pH sensor must be placed a� er the  lter and before the hea ng system,
• It must be placed ver cally or sloping at a maximum of 45°; it should never point downwards.
• The injec on point must be the last element on the pool circuit, a� er any hea ng and water treatment
systems.


2.2.2 Sensor and injec on point installa on
• There must be at least 60 linear cm between the sensor and the injec on point. If this is not possible, use
the POD kit available as an op on or a check valve.
• Fixture collars (or the POD kit) must be installed on rigid Ø50 PVC pipes. A Ø63 adapter is available as an
op on.
• The POD kit is recommended if a Redox (chlorine) regula on module has also been installed.
• Maximum pressure must not exceed 1.5 bar.
• Drill a hole with a diameter between 16 and 22 mm on the pipe at the selected loca ons for the pH sensor
and the injec on point.
• Then install the  xture collars.
• Use Tefl on tape to make sure the threads on the sensor holder, the injec on valve and its adapter are
water ght.
• Screw down the one or more sensor holders onto the  xture collar or a POD kit (op onal), 

• Carefully unscrew the protec on tube from the sensor,  

• Rinse the end of the sensor with tap water and shake o excess water,  
 
 

• Screw the sensor into the sensor holder, holding the BLUE connector in one hand and the black connector
in the other to avoid tangling the cable,  
• Once the sensor is installed, it can be connected to the BNC connector's control box, 

EN

10

 
• Using the supplied  xture kit, install the control box on a rigid, ver cal surface in an easy-access loca on.
• Connect the power cord to a 230Vac mains outlet.
• Connect the stripped wire to couple the  ltra on pump to the  ltra on pump's 230Vac contactor using a
relay to avoid any voltage returns when the pump is stopped.

11


-Ac vate sensor calibra on mode (press and hold for 5 seconds)
-Con rm a choice in the "Se ngs" menu
-Cancel the "OFA" over feed alarm
-View the set point value (press and hold for 5 seconds)
-Exit the "Se ngs" menu
-Scroll up or down through the "Se ngs" menu
-Ac vate the "Priming" func on (press and hold the up bu on for a long  me)
0-1 -Master switch to power the appliance on and o
Thanks to its double electrical supply, the appliance is always powered on, even if  ltering
is stopped, making it possible to view the water pH level at all  mes. The sensor can also be
calibrated when  ltering is stopped.
The appliance can be powered o at all  mes using the 0-1 switch on the side of the appliance.

 

• The suc on tube must be immersed with the suc on cane in the container of product to be injected, and
is connected to the peristal c pump (le� side).
• The injec on tube is connected on the one hand to the peristal c pump (right side) and on the other hand
to the pool discharge pipe via the injec on valve.
• The peristal c pump cover must be re  ed using its  xing screw.
EN

12

 

 
• Rinse the  p of the pH sensor with tap water.
• Shake it to remove excess water.
3.3.1 Calibra ng pH 7
• Immerse the sensor in pH 7 bu er solu on.
• Press and hold the bu on for 5 seconds un l is displayed, then
,
• Press , the progress bar is displayed:
• A� er about 60 seconds the pH sensor reliability measurement is displayed.
• Depending on the message displayed, perform the corresponding opera ons:
Message
Ac on(s) • turn o the appliance using the master switch
0-1
• replace the bu er solu on and/or the pH
sensor
• restart calibra on
con nue calibra on
• Rinse the  p of the pH sensor with tap water.
• Shake it to remove excess water.
3.3.2 Calibra ng pH 4
• Immerse the sensor in pH 4 bu er solu on.
• Press the bu on to display ,
• Press , the progress bar is displayed: ,
• A� er about 30 seconds the pH sensor reliability measurement is displayed.
• Depending on the message displayed, perform the corresponding opera ons:
Message
Ac on(s) • turn o the appliance using the master
switch 0-1
• replace the bu er solu on and/or the pH
sensor
• restart calibra on
• press to complete calibra on
• Rinse the  p of the pH sensor with tap water.
• Shake it to remove excess water.
• Fit the sensor back onto its holder.
• The sensor measurement is more accurate if the calibra on is performed at 2 points (pH7 and
pH4) rather than at a single point (pH7)

13

The peristal c pump is self-priming. However, it can be run manually by
pressing . The peristal c pump will then run to inject corrector product as long as the key is kept pressed
down.


Menu Default se ngs
Language French
pH set point 7.4
Dosage Acidic
Alkalinity level Standard (100 < TA < 150 ppm)
"OFA" over feed alarm 4 hours
Calibra on Ac vated 2 points (pH7 and pH4)
Filtering opera on detec on Ac vated "On"
• Press and at the same  me and hold for 5 seconds when the appliance is powered on:
• To exit this menu, press :
• Select "Yes" or "No" using the and keys,
• Con rm by pressing .
EN

14

The interface has six available languages:
• EN = English,
• FR = French,
• ES = Spanish,
• DE = German,
• IT = Italian,
• NL = Dutch.

2 methods for adjus ng the set point:
• see §"3.5.1 "Se ngs" menu"

• Press when the appliance is running: ,
• Press and hold and adjust the set point using the and keys.
• Release the key to exit.

It is used to select the type of corrector product to be injected (acidic or basic dosage).

It is used to select the level of alkalinity for the pool water: standard (100 < TA < 150 ppm), high (TA >
150 ppm) or low (TA < 100 ppm).

15

This appliance is   ed with a safety mechanism to avoid any risk of correc on product overdose, for example
in the event of a problem with the sensor. This safety mechanism, called the "OFA" (= Over Feed Alarm),
pauses the appliance if it has not reached the set point within a given  me limit. A high set point value is
strongly recommended to avoid any unplanned and/or unjus  ed triggering (a  me of  ltra on in excess of
4 hours is recommended for large pools and/or pools or with high alkalinity levels).
The over feed safety mechanism operates in two main steps:
• fl ashes a� er 75% of the programmed  me has elapsed without having
reached the set point
• is displayed when the  me has elapsed. The appliance then switches to
safety mode.
If  ltering stops and restarts while the appliance is in "OFA Stop" status, the appliance will ac vate an "OFA
Test" mode for 1 hour to make sure that the measurement from the sensor is correct.
On comple on of this "OFA Test" mode:
-if the set point has been reached = the appliance remains in normal mode
-if the set point has not been reached: the appliance switches to "OFA Alarm" mode and make an injec on
of corrector product
-if the set point has s ll not been reached a� er the "OFA Alarm" mode is complete (=25% of total OFA set
 me), the appliance switches to "OFA Stop" (thus stopping any product injec on process) and safety mode
and will remain in this state un l manual interven on.
To reset this safety measure and restart the appliance, press the key. First make sure that the sensor is
in good condi on and is calibrated.
Special over feed safety func on:
In order to prevent false alarms just a� er the appliance is installed, the over feed safety can be deac vated
for 24 or 48 hours:
• Press , and at the same  me to deac vate the safety mechanism for 24 hours
• Press , and at the same  me to deac vate the safety mechanism for 48 hours

It is possible to perform calibra on in a single step for pH7 (quicker but the measurements will be less reliable
in  me), or to remove this func on (we advise strongly against this, except in the case of pools under a
maintenance contract).

This appliance is   ed with a double electric power supply making it possible to keep the appliance switched on
to carry out pH sensor calibra on when  ltering is not opera onal. This func on can however, be deac vated
in the case of a di erent electrical connec on (only carried out by a professional).
 



All factory se ngs can be restored.
• Turn o the appliance
• Turn the appliance back on by pressing and at the same  me:
• Select "Yes" or "No" using the and keys, then con rm by pressing .
EN

16


• Remove the peristal c pump cover,
• Place the roller holder at "10:20" by turning it clockwise,
• Completely free the le�   ng by keeping it stretched outwards,
• Then turn the roller holder clockwise to free up the tube as far as the right   ng
• Make sure that the roller holder is in the 10:20 posi on.
• Insert the le�   ng of the new peristal c tube into its housing.
• Then pass the tube into the roller holder guide.
• Turn the roller holder clockwise and accompany the tube as far as the right   ng.
• Re t the peristal c pump cover.

 
• During winterising, it is recommended to leave the pump in clean water in order to
rinse the peristal c tube by carrying out manual priming (see §"3.4 I Priming the
peristal c pump").
• Then place the roller holder at 6 o’clock to facilitate restar ng.
• Remove the pH sensor from its holder and store it in its original bo le or in a container
 lled with tap water.
• Close o the sensor holder if necessary.

17

 

 
 

Behaviour Possible causes Solu ons



• Cable problem and/or BNC
connector problem
• Check that the connec on between the
sensor and the control box has not short cir-
cuited (between the cable's central core and the
external shielding)
• Check that there is no dampness and/or
condensa on on the BNC socket




• The pH sensor connec on
cable is damaged
• Check the cable and/or the BNC connector
• The pH sensor cable is too
close to an electric cable lead-
ing to interference
• Reduce the distance between the appliance
and the sensor
• There is an air bubble in
the pH sensor bulb
• Put the pH sensor in the ver cal posi on
and shake it gently so that the air bubble rises
to the top (it must be mounted in the ver cal
posi on or  lted to 45° maximum, see §"2.2.1
Sensor and injec on point loca on")
• Problem on sensor's porous
coa ng and/or dirt deposits
• Restart calibra on
• Check that the pH sensor bulb is not
damaged and that it did not dry outside the
water
• As a last resort, clean it by dipping the
sensor in a 10% hydrochloric acid solu on for a
few hours
• The sensor is not correctly
  ed on the piping
• Place the sensor in a more suitable loca on
(see §"2.2.1 Sensor and injec on point loca-
 on")


• The pH sensor is electro-
sta cally charged
• Rinse the sensor with clean water
• Do not wipe the sensor with a cloth or
paper, shake it gently
EN



Message Possible causes Solu ons
"Level Low"
• Corrector product container
empty
• Replace the corrector product container
• Floater blocked • Check that the white fl oater on the suc on
cane is in working order
• Level sensor cut o • Change the suc on cane
"OFA Alarm"
First step of the ac vated over
feed safety mechanism ( me >
75%) • Press to stop the alarm
• Check the sensor and/or the pH in the pool
"OFA Stop"
Second step of the ac vated
over feed safety mechanism
( me = 100%) • Press to stop the alarm
• Check the sensor and/or the pH in the pool
"OFA Test"
pH sensor measurement test if
the "OFA Stop" was ac vated
during the previous  ltering
cycle
• Wait for the end of the procedure (1 hour)
then check the sensor and/or the pool pH
level
"Filtering" • Filtering stopped • Start and/or check the  ltering
• Incorrect connec on • Check the electrical connec ons
"4pH Sensor Fail"
or
7pH Sensor Fail"
• Bu er solu on defec ve • Check that the solu on used is pH7 or pH4
• Take a new pH7 and/or pH4 bu er solu on
• Check the pH of the bu er solu on with an
electronic pH meter
• Problem on sensor's porous
coa ng and/or dirt deposits
• Restart calibra on
• Check that the pH sensor bulb is not
damaged and that it did not dry outside the
water
• As a last resort, clean it by dipping the
sensor in a 10% hydrochloric acid solu on for a
few hours
• Check that the sensor's porous coa ng is in
good condi on (wash the sensor with an acidic
solu on)
• The sensor is worn • Replace the pH sensor
• The sensor is electrically
charged
• Rinse the sensor with clean water
• Do not wipe the sensor with a cloth or
paper, shake it gently
• If the problem persists, replace the pH sensor
"Parameter Error"
Parameter error
• Press to cancel the error
• Replace the printed circuit board
If the problem con nues, contact your retailer.

ZODIAC® is a registered trademark of Zodiac Internaonal, S.A.S.U., used under license.
Zodiac Pool Care Europe - Bd de la Romanerie - BP 90023 - 49180 St Barthélémy d’Anjou cedex - S.A.S.U. au capital de 1 267 140 € / SIREN 395 068 679 / RCS PARIS
Votre revendeur
Your retailer
Modèle appareil
Appliance model
Numéro de série
Serial number
Pour plus d’informaons, enregistrement produit et support client :
For more informaon, product registraon and customer support:
