Innowater PH PUBLIC Manuale utente

pH PUBLIC

Operating Manual

Ver. 5 /19

WARNINGS

Before carrying out any installation or maintenance of the pH-Public, disconnect it

from the mains power supply.

This appliance is not intended for use by persons (including children) that lack ex-

perience and knowledge, unless they have been given supervision or instruction

concerning use of the appliance by a responsible person.

The installation of this device should be carried out by a qualified person.

The pH-Basic device should be located in the correct pool zone and connected to

supply via a power outlet that is protected by a residual current device (RCD) hav-

ing a rated residual operating current not exceeding 30mA.

The power outlet should have a degree of protection suitable for the pool zone

Ensure that equipotential bonding of all parts of the pool installation is carried out.

During the installation phase of the pH Basic, check the following:

• the voltage of the power supply must to the voltage indicated on the side

of the appliance

• the injection point pressure must be lower than 1.5 Bar

• the peristaltic pump's protection cover must be correctly fitted

• the suction tube must be immersed in the corrective solution container

with the suction tube also connected to the peristaltic pump (left side).

• the injection tube must be connected on one side to the peristaltic pump

(right side) and on the other side to the pool return pipe via the injection

valve.

Innowater Tratamientos Integrales del Agua S.L. will not be held liable for the use

of this device with inappropriate products.

2 pH Wireless

PAGE

1. Description ................................................................ 3

2. Installation ................................................................ 4

2.1. Mechanical and hydraulic installation ............................ 4

2.2. Electrical installation................................................... 4

3. Start up...................................................................... 5

3.1. ON/OFF..................................................................... 5

3.2. Data reception ........................................................... 5

3.3. Priming ..................................................................... 5

3.4. Stroke speed regulation .............................................. 6

4. User interface ............................................................ 6

4.1. Main screen ............................................................... 6

4.2. Secondary screen....................................................... 6

5. Main menu ................................................................. 7

5.1. Set point .................................................................. 7

5.2. – 5.3. pH calibration ................................................... 8

5.4. Factory calibration...................................................... 9

5.5. Dosing alarm ............................................................. 9

5.6. Language ................................................................ 10

5.7. Contrast LCD ........................................................... 10

pH Public 3

1. DESCRIPTION

The pH Public works to correct the pH level of your pool by injecting corrective acid

solution in the circuit. The device monitors the pH continuously by means of its pH

sensor and sends a WIRELESS control signal to the pump which will, in turn, injects

acid in the pool when needed.

The device will control the speed of the pump depending on the measurement of

the probe and the setpoints programmed. All the control and measurements

functions are performed and accessible through the control device, with a display

and four buttons.

1. BNC socket for pH probe

2. 230 Vac power supply

3. Buttons

4. LCD display

5. Connection for suction tube

6. Connection for injection tube

7. Stroke speed knob

8. Data reception LED

9. Connection for venting tube

4 pH Public

2. INSTALLATION

2.1. Mechanical and hydraulic installation

During installation ensure that the mains cable is disconnected from

the power supply.

Acids are very corrosive and can harm you eyes, skin and airways.

When working with pH correctors necessary caution and preventive

measures should be taken. Always wear safety googles, gloves and

clothing.

Acid container. We strongly recommend to place the acid container outside the

filter shed. If it is not possible, ensure the adequate ventilation is provided and

place the container as far from metallic and electronic equipment as possible and

NEVER underneath the pump or other device.

Control device. Install the device on the wall in an easy to access location using

the bracket provided. Before attaching the bracket to the pump, use the bracket to

mark in the wall the location of the holes you will need to make for the screws.

Wireless pump. Install the pump on the wall in an easy to access location using

the bracket provided. Before attaching the bracket to the pump, use the bracket to

mark in the wall the location of the holes you will need to make for the screws.

Choose a location close to the injection point.

Injection. Install the clamp saddle provided in the return pipe after all other

equipment (pump, filter, heater, chlorinator etc.). It should be the last element on

the return line. Install the injection one way valve on the clamp saddle. Use Teflon

tape to seal the thread. Connect the injection rigid tubbing to the valve.

Connect the other end of the injection tube to the injection connection (upper side)

of the pump.

Suction. Connect the suction tube to the suction connection (down side) of the

pump. Use a length of tube long enough to reach from the acid container to the

pump (max. 1,5 meters).

Probe. Install pH probe preferably after the filter. If there is a salt water

chlorinator, the probe must be installed before the cell and as far as possible from

it. Try to choose a point in the circuit that never gets empty of water, because the

probe deteriorates very quickly when dry.

2.2. Electrical installation

Power supply

Connect the 230 VAC power supply cable plug (3) into a mains power point

provided with a protective earthing conductor (PE)

pH Public 5

3. START UP

3.1. ON/OFF

Once all the elements are installed (pH probe, injection and suction tubes, level

probe) and device connected to 230Vac supply, press ON/OFF key for two seconds

to turn on the control device.

Before first use and then periodically, pH probe must be calibrated

To turn off the device, go to main screen and keep ON/OFF key pressed for two

seconds.

3.2. Data reception

As soon as controller is turned on it will continuously a control signal to the pump. If

the pump is connected to a 230 Vac supply, its LED indicator (8) will flash every

second, even when there is no need to dose acid. The control device shows the data

that is sending in the main screen (Pul. ON or OFF). This signal depends on the

calculated dosage and the working cycle (see 4.2). If at any moment, the pump

stops receiving data from the controller the LED indicator will stop flashing and the

dosage will stop within a few seconds.

3.3. Priming

To start the pump manually press “OK” for two seconds while in the main screen.

Open the venting connection turning it counter-clock wise and wait for the acid to

begin flowing into the venting tube.

Acids are very corrosive and can harm you eyes, skin and airways.

Always wear safety googles, gloves and clothing and provide a safe

means to evacuate the priming acid.

Once the pump is completely full of liquid close the venting connection, the pump

will start dosing through injection tube. Press OK to stop the priming process, if

don´t it will automatically return to main screen in 60 seconds.

pH 7.40 Dos.20%

Pul. ON

PRIMING

STOP = OK

OFF

pH 7.40 Dos.20%

Pul. ON

ON/OFF

6 pH Public

3.4. Stroke speed regulation

By means of the stroke speed knob you can adjust the stroke speed from 0 to 160

strokes/minute and therefore, the pump flow. If knob is at 160, flow is about 5 l/h.

Adjust the stroke speed depending on the amount of water to treat.

A high flow will reach the setpoint faster, but if it is too high it could exceed the

setpoint, because there is always a delay between the system reaction to the acid

dosage and the pH measurement. On the other hand, a lower flow will moderate

that delay but it will take more time to reach the setpoint.

4. USER INTERFACE

4.1. Main screen

Main screen shows the following info:

(1) pH measurement

(2) Acid dosage percentage, calculated from the setpoints

(3) The command that is being sent to the pump

4.2. Secondary screen

There is a secondary screen, reachable from main screen, that shows additional

info. To enter and exit the secondary screen, press arrow keys.

Working cycle

The signal sent to the pump is modulated as a variable duty cycle proportional to

the percentage of dosage and periods of 100 seconds. For example, when the

calculated percentage is 40%, the command (Pul.) will be ON the first 40 seconds

and remain OFF the other 60 seconds. While dosage is 0%, it will not begin a new

cycle. The course of this cycle is shown in the left side (T).

pH 7.40 Dos. 20%

Pul. ON

T 68 Dos.20%

25 min Pul. ON

Working cycle

Accumulated

dosage

pH Public 7

Working cycle

The signal sent to the pump is modulated as a variable duty cycle proportional to

the percentage of dosage and periods of 100 seconds. For example, when the

calculated percentage is 40%, the command (Pul.) will be ON the first 40 seconds

and remain OFF the other 60 seconds. While dosage is 0%, it will not begin a new

cycle. The course of this cycle is shown in the left side (T).

Accumulated dosage

When dosing alarm is enabled, the secondary screen will show the accumulated

dosage time (in minutes) without reaching the setpoint. If dosing alarm is not

enabled the secondary screen will show “-- min”.

5. MAIN MENU

Press Menu to access to the main menu. Use the arrows to scroll the different

functions. Press OK to enter in each sub-menu.

5.1. Set points

Enter with OK key. It will show the following screen:

The calculation of the dosage is made by establishing two setpoints, A and B, and

the relative volume of dosage that is required in each of these points.

- When the pH value is below the lower set point, the pump will not dose acid.

- When the pH is between both points, the chlorinator will send a proportional

signal defined by both points. For example, in the case of the figure, if pH is at 8,

the pump will dose al 40%.

- When the pH is above the upper setpoint, the pump will dose to the fixed volume

defined for the upper point. In the case of the figure, 80%.

You can set both point and choose the percentage of dosage for each of them. To

do this, press the cursor with the MENU key in the parameter you want to modify

and act with the arrows to change the value. Press OK to save the data and exit

the sub-menu.

pH Configuration

1 Set Points

A: pH 7.0 0%

B: pH 9.0 80%

8 pH Public

By choosing the set points you will be defining at the same time the required dosing

volume and the response delay after dosing, both of them depending on the size of

your pool. For example, if your pool has a high volume you should establish high

percentages of dosing. The response time in the pH measurement of your pool can

be considered when setting point A of the setpoint, stopping the dosage before

reaching the desired pH value. For example, to obtain a pH = 7.0 and avoid

overdosing, set the dosage stop in a higher value:

A: pH 7,2 0%

Each pool needs more or less acid, as they are more or less reactive to the dosage;

at the beginning at least, you may need to correct the setpoints several times.

5.2.— 5.3. pH probe Calibration

pH probes require a calibration before their first use and then they need to be

calibrated periodically. This is because different probes have different responses and

the response of the same probe inevitably varies with time.

The calibration consists of measuring the response of the probe introducing it in two

different buffer solutions in order to deduct the pH of any other solution, in our

case, the pH of the pool water.

The calibration of the probe is carried out using the two buffer solutions supplied

(pH4 and pH7) and entering the submenus “2 Cal pH4” and “3 Cal pH7”

respectively.

Enter the sub-menu 2 Cal pH4 by pressing OK key, it will show the following screen:

The value next to Lec (on the left) indicates the current pH value measured by the

probe.

The value on the right indicates the buffer solution we are using. You can adjust this

value using the arrows to adapt it to the temperature and the sample used.

Insert the probe in the 4 pH buffer calibration, remove it slightly with the probe and

wait for a stable reading value to be reached.

Once the reading value has stabilized press OK key to save calibration and exit the

pH Configuration

2 Cal pH 4

pH Configuration

3 Cal pH 7

pH 4 Calibration

Lec: 4.05 4.00

pH 7 Calibration

Lec: 7.05 7.00

pH Public 9

sub-menu.

Next, remove probe the probe from the pH4 buffer solution, rinse its bottom with

clean water and shake gently to remove an excess of water.

Repeat the procedure above with the pH7 buffer solution and submenu “3 Cal pH

7”

Note: During calibration, if value measured by the probe (Lec), differs in more

than 2 units from the theoretical of the buffer solution (pH4 and pH7), data

calibration won´t be saved and it will go back to factory values.

For example, if the reading value (Lec) is 6,05 while calibrating with pH4 solution.

5.4. Factory calibration

In submenu 5 Factory calib, gives you the possibility to reset general calibration

parameters that correspond, approximately, with those of a new probe and which

are the ones programmed by the chlorinator form factory values. This can be

useful if you have saved successive calibrations and do not have the buffer solution

for a correct calibration.

Press OK to enter the sub menu 5 Factory calib, it will show the following screen.

5.5. Dosing alarm

Press OK to enter. To activate or deactivate, scroll with arrow keys up or down to

ON or OFF. Then, press menu key to set the amount of time desired (up to 20

minutes). When enabled, if the device is dosing acid for the period of time set

without reaching the setpoint, it will stop the dosage and show an alarm.

pH Configuration

6 Dosing alarm

Dosing Alarm OFF

Max. Dos. 20 min

pH Configuration

5 Factory calib.

Factory Calib.?

yes:OK exit:MENU

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