Peraqua iQntrol DOS MODBUS User manual

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Subject to technical modifications
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Handelsstraße 8 Tel. [phone] www.peraqua.com
A –4223 St. Valentin [email protected]
Measuring, control and dosing
technology
for private pools
iQntrol DOS MODBUS
As 01/2022 serial no. 84050
Measuring, control and dosing technology for pH correction and disinfectants

iQntrol DOS-MODBUS
Original manual in German Version 1.0.2 2022.10.06 2/39
Table of contents
1About this manual......................................................................................................................................................................... 4
1.1 Scope of applicability ............................................................................................................................................................... 4
1.2 Target group............................................................................................................................................................................. 4
1.3 Storage of the manual.............................................................................................................................................................. 4
1.4 Further information ................................................................................................................................................................. 4
1.5 Symbols used ........................................................................................................................................................................... 4
2Safety ............................................................................................................................................................................................ 5
2.1 Intended use ............................................................................................................................................................................ 5
2.2 Safety notices........................................................................................................................................................................... 5
3Important facts about swimming pool water properties.............................................................................................................. 6
3.1 Auxiliary hygiene parameters................................................................................................................................................... 6
3.1.1 pH value .............................................................................................................................................................................. 6
3.1.2 Redox voltage...................................................................................................................................................................... 6
3.1.3 free chlorine........................................................................................................................................................................ 6
3.1.4 combined chlorine............................................................................................................................................................... 6
3.1.5 Cyanuric acide ..................................................................................................................................................................... 6
4Scope of delivery –device description.......................................................................................................................................... 7
4.1 Scope of delivery...................................................................................................................................................................... 7
4.2 Check for transport damage..................................................................................................................................................... 7
4.3 Identification of the device ...................................................................................................................................................... 7
4.4 Device description.................................................................................................................................................................... 7
5Installation .................................................................................................................................................................................... 8
5.1 Select installation location ....................................................................................................................................................... 8
5.2 Mounting the device on the wall ............................................................................................................................................. 8
5.3 Voltage supply.......................................................................................................................................................................... 8
5.4 Assembly notices...................................................................................................................................................................... 8
5.5 Provide external pre-filter........................................................................................................................................................ 8
5.6 Installation suggestion ............................................................................................................................................................. 9
6Commissioning - Notices............................................................................................................................................................. 10
6.1 Control parameters................................................................................................................................................................ 10
6.2 pH electrode........................................................................................................................................................................... 10
6.3 Cleaning beads ....................................................................................................................................................................... 10
6.4 Measuring cell flow................................................................................................................................................................ 10
6.5 Dosing cartridges.................................................................................................................................................................... 10
6.6 Chemicals ............................................................................................................................................................................... 10
6.7 Disinfectants........................................................................................................................................................................... 11
6.8 Swimming pool filter backwashing / vacuuming the floor ..................................................................................................... 11
7Electrical connection................................................................................................................................................................... 12
7.1 Open and close the casing...................................................................................................................................................... 12
7.2 Insert lines.............................................................................................................................................................................. 12
7.3 Overview of the connection diagram..................................................................................................................................... 13
7.3.1 The power pack NT_SCHW-8............................................................................................................................................. 13
7.3.2 The I/O board IO_SCHW-8................................................................................................................................................. 15
7.3.3 The measuring amplifier MV_CPRT_V1................................................................................................................................... 16
7.4 External functions .................................................................................................................................................................. 16
7.4.1 Central control technology off (external OFF)................................................................................................................... 16
7.4.2 Clean water external ......................................................................................................................................................... 16
7.4.3 Temperature control......................................................................................................................................................... 16
8Operating the touch screen ........................................................................................................................................................ 17
8.1 Operating programmes.......................................................................................................................................................... 18
8.1.1 Automatic (auto mode)..................................................................................................................................................... 18
8.1.2 Quick Info .......................................................................................................................................................................... 18
8.1.3 Dosing delay ...................................................................................................................................................................... 18
8.1.4 Start routine ...................................................................................................................................................................... 18

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8.1.5 Alarm .................................................................................................................................................................................19
8.2 Main menu..............................................................................................................................................................................19
8.2.1 Main menu Settings ......................................................................................................................................................19
8.2.1.1 Main menu Settings pH .......................................................................................................................................20
8.2.1.2 Main menu Settings Proportional disinfection, 2-point (chlorine, bromine).......................................................20
8.2.1.3 Main menu Settings Disinfection O2 (active oxygen) ..........................................................................................21
8.2.1.4 Main menu Settings Dosing performance ...........................................................................................................23
8.2.1.5 Main menu Settings Temperature.......................................................................................................................24
8.2.1.6 Main menu Settings Dosing delay .......................................................................................................................24
8.2.1.7 Main menu Settings System ................................................................................................................................24
8.2.1.8 Main menu Settings System Password End user –Password level 1..............................................................25
8.2.1.9 Main menu Settings System Password Technician 1 –Password level 2........................................................25
8.2.1.10 Main menu Settings System Network.............................................................................................................25
8.2.2 Main menu Service........................................................................................................................................................26
8.2.2.1 Main menu Service Input test..............................................................................................................................26
8.2.2.2 Main menu Service Output test...........................................................................................................................26
8.2.2.3 Main menu Service Info.......................................................................................................................................26
8.2.2.4 Main menu Service Manual dosing O2................................................................................................................26
8.2.3 Main menu Login ..........................................................................................................................................................27
8.2.4 Main menu Log .............................................................................................................................................................27
8.2.4.1 Main menu Log Event Log ...................................................................................................................................27
8.2.4.2 Main menu Log Event Log Justage.......................................................................................................................28
8.2.4.3 Main menu Log Data Log.....................................................................................................................................28
8.2.4.4 Hauptmenü Log Export........................................................................................................................................28
8.2.5 Main menu Calibration..................................................................................................................................................29
8.2.5.1 Main menu Calibration pH 2-point (pH electrode)..............................................................................................29
8.2.5.2 Main Menu Calibration pH - phenol red (tablet measurement)..........................................................................29
8.2.5.3 Main menu Calibration Redox electrode.............................................................................................................30
9Network connection - Visualisation.............................................................................................................................................31
9.1 Network installation ...............................................................................................................................................................31
9.1.1 Insert the network line into the control housing ...............................................................................................................31
9.1.2 Localise the LAN interface..................................................................................................................................................31
9.2 Establish network access at the device...................................................................................................................................32
9.2.1 Main menu Settings System Network .................................................................................................................32
9.2.2 IP-address ..........................................................................................................................................................................32
9.2.3 Gateway.............................................................................................................................................................................32
9.2.4 Subnetmask .......................................................................................................................................................................32
10 Maintenance and cleaning ..........................................................................................................................................................33
10.1 Fine filter............................................................................................................................................................................33
10.2 pH electrode ......................................................................................................................................................................33
10.3 Dosing valves .....................................................................................................................................................................33
10.4 Flow control valve..............................................................................................................................................................33
10.5 Dosing cartridges ...............................................................................................................................................................34
10.6 Redox electrode.................................................................................................................................................................34
11 Decommissioning - Overwintering - Storage...............................................................................................................................34
12 Technical data..............................................................................................................................................................................34
13 Change history - IQntrol DOS MODBUS.......................................................................................................................................35
14 Commissioning protocol..............................................................................................................................................................36
15 Spare part list...............................................................................................................................................................................38
16 Personal notes.............................................................................................................................................................................39

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1About this manual
1.1 Scope of applicability
This manual describes the installation, commissioning and operation of the device.
The manual covers the POOLKLAR Touch XL starting with version -> see footer and cover sheet.
1.2 Target group
Only persons who have received proper instructions regarding the device functions may operate the device. Electrical and water-
side connection work may only be conducted by appropriately trained specialists.
1.3 Storage of the manual
All manuals for the device as well as those for the installed components must be stored in the immediate vicinity of the device and
be accessible to the operating personnel at all times.
1.4 Further information
Further information about special topics, e.g., design of the dosing performance or description of the operating parameters, is
available from your specialist dealer.
1.5 Symbols used
This document uses the following types of safety notices as well as general notices:
DANGER!
"DANGER" denotes a safety notice whose non-observance will directly result in
death or serious injury!
WARNING!
"WARNING" denotes a safety notice whose non-observance may result in death or serious injury!
CAUTION!
"CAUTION" denotes a safety notice whose non-observance may result in minor or moderate injury!
ATTENTION!
"ATTENTION" denotes a safety notice whose non-observance may result in property damages!
Notice
A notice denotes information whose non-observance may result in operational disruptions.
Tip
A tip denotes information that may result in improvements in the operating process.

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2Safety
2.1 Intended use
The IQntrol DOS MODBUS device is designed for carrying out measuring and control tasks when treating swimming pool water in
private swimming pools.
2.2 Safety notices
The operation manual must be consulted prior to installation, commissioning and maintenance work. Following the
commissioning, the manual must be made available to the operator. In your own interest, please observe the safety notices
contained in this manual.
Always handle chemicals with special care!
Please contact your chemicals supplier for information about the safe handling of chemicals.
WARNING!
There is a risk of chemical burns and poisoning!
Observe the relevant regulations when handling chemicals!
-Never mix different chemicals with each other.
-Only use chemicals that have been approved for the treatment of swimming pool water
-Wear suitable protective clothing when conducting maintenance work.
Further information about the chemicals used is available from your chemicals supplier.

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3Important facts about swimming pool water properties
3.1 Auxiliary hygiene parameters
The following information is meant to offer a preliminary overview about the most important auxiliary hygiene parameters in the
treatment of swimming pool water. Further information is available from your swimming pool dealer, the chemicals supplier, or
the book trade. The information provided here refers to DIN 19643 for swimming pool water in public pools.
Devices that are installed outside of Germany should comply wit the county-specific regulations and statutes, e.g., ÖNORM, etc.
3.1.1 pH value
The pH value has a decisive effect on the chemicals added to the swimming pool cycle. If the pH value is too high, it negatively
affects the germ-killing speed of disinfectants containing chlorine. The likelihood of lime precipitation and water clouding
increases. If the pH value drops too low for an extended time, there is a risk that the treatment system and the basin may be
damaged.
According to the DIN, a pH value around pH7 should be aimed for.
Values below pH6.5 and above pH7.6 should be avoided.
3.1.2 Redox voltage
The redox voltage indicates the ratio between reducing substances (organic contaminations) and oxidising power (active chlorine
content) in the pool water. The redox voltage serves as a measure for assessing the hygienic basin water quality. The higher the
redox voltage, the faster germs and bacteria will be killed. To achieve a sufficiently fast germicidal effect, the redox voltage in
private pools should also comply with the values specified by the DIN. In this context, the amount of free chlorine measured with
the DPD1 method should be between 0.3 and 0.6 mg/l.
The chlorine's disinfecting power essentially depends on the basin water’s pH value. The higher the pH value, the lower the
disinfecting power; if the pH value decreases, the disinfecting power increases at a constant chlorine level.
If the redox voltage is far below 700 mV at a free chlorine content between 0.3 and 0.6 mg/l, the complete function of the
swimming pool water treatment must be checked.
According to the standard a redox voltage around 750 mV should be aimed for.
Values below 650 and above 800 mV should be avoided.
3.1.3 free chlorine
The chlorine available for disinfection in the pool water is called free chlorine. Free chlorine is detected by means of the DPD1
method.
According to the DIN, the free chlorine content should be kept between 0.3 and 1.5 mg/l.
Values below 0.2 and above 1.2 mg/l should be avoided.
3.1.4 combined chlorine
Combined chlorine is the product of a reaction between organic contamination introduced in the pool and a chlorine-containing
disinfectant. Combined chlorine causes the characteristic indoor pool smell and may lead to skin irritation and red eyes.
Ideally, the organic chlorine compounds will be retained in the swimming pool filter system and flushed out via the regular
backwashing. If the filter system does not work correctly, or if the backwashing is not conducted in a proper fashion, combined
chlorine may accumulate in the swimming pool cycle. If the water starts smelling of chlorine, it is high time to conduct a chlorine
measurement by means of the DPD3 measuring.
The concentration of combined chlorine results from the difference between the overall chlorine content and the amount of free
chlorine in the water. Observe the instructions of the analytic device's manufacturer when determining the concentration.
Combined chlorine can only be reduced by dilution, i.e., with vigorous backwashing or by a shock chlorination, if applicable.
Consult your swimming pool dealer.
According to the DIN, a combined chlorine content below 0.2 mg/l should be aimed for.
“Chlorine odours” can result above a combined chlorine content of approx. 0.3 to 0.4 mg/l. (characteristic indoor pool smell)
3.1.5 Cyanuric acid
Cyanuric acid is found in organic chlorine products (stabilized chlorine). If disinfection is carried out with organic chlorine, cyanuric
acid will accumulate. Cyanuric acid can only be reduced by dilution, i.e. with vigorous backwashing. Ask your swimming pool
retailer.
According to the standard, a maximum concentration of 100 mg/l must be observed.
Tip
Since the pH value is an elementary factor in the swimming pool treatment, the dosing of chlorine-containing
disinfectants is only released once the pH value has entered the control range!

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4Scope of delivery –device description
4.1 Scope of delivery
The IQntrol DOS MODBUS is delivered with the following standard accessories.
- Buffer solutions pH7, pH4, redox test solution
- Electrode cleaner, distilled water
- Glass beads, electrolyte solution, replacement gaskets
- 2 pc. ½“ measuring water ball valve with immersion pipe
- 7 m each measuring water pipe 6x1 mm in PE and PTFE, respectively
Customer-specific or order-related modifications are possible.
4.2 Check for transport damage
Please check the device and all accessories immediately upon receipt for transport damage and completeness.
4.3 Identification of the device
For spare part orders and troubleshooting, it is useful to know the device serial number and software version. The device serial
number is located on the identification plate on the right side of the control housing. The programme version can be called up via
the menu item Service  Info.
4.4 Device description
1
2
2
5
7
4
6
8
9
13
3
10
11
12
1. Control IQntrol DOS MODBUS
2. Dosing pumps Standard SR10 (optional Sa)
3. Buffer solutions
4. Redox test cylinder
5. pH electrode
6. Measuring cell illumination
7. Dosing valves
8. Flow control valve
9. Flow monitoring
10. Redox electrode
11. Test water tap
12. Measuring water inlet
13. Measuring water return flow
14. Suction set (not visible in image)
The IQntrol DOS MODBUS is delivered as a ready-assembled unit. All parts are mounted on a plastic plate. This ensures a quick
installation of the device. It also goes toward preventing potential execution errors on the part of the installation personnel, as far
as possible.
For the transport, the factory merely removes the pH electrode from the measuring cell and delivers it in a separate protective
box. In order to avoid deformation of the dosing hoses during extended storage, the two dosing cartridges have been pulled off
the motor shaft.
The IQntrol DOS MODBUS is equipped with a touch-sensitive touch screen. By touching a symbol or a numeric value, this will be
activated for parametrisation. The adjustment menus come with additional text-based instructions.
In order to eliminate the risk of confusing both chemicals as far as possible, the dosing technology is colour-coded throughout. The
colour-coding runs from the suction set over the associated dosing pump to the dosing valve.
The parts used for pH value control are located to the left and coded in red. The components used for disinfection are located on
the right and coded in yellow.
CAUTION!
If the two chemicals are switched, this leads to a malfunction of the addition of chemicals to the pool water! This
may result in significant overdosing!

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5Installation
5.1 Select installation location
A freely accessible installation location should be selected to facilitate operation and subsequent maintenance tasks. The
installation location must be protected from frost and the device may not be exposed to direct sunlight.
5.2 Mounting the device on the wall
Select the installation height so that the device is located at eye level. Measure the four drill holes on the mounting plate and mark
their location on the wall. Use the included four black plastic spacers to ensure the required distance from the wall.
5.3 Voltage supply
The devices must be supplied with continuous voltage. I.e., the voltage supply must not be locked with the filter system. For
locking with the filter system, please use the external off input.
The permanent voltage supply is required for the proper execution of the disinfection dosing by means of active oxygen. This also
prevents condensation corrosion.
5.4 Assembly notices
Only "good" basin hydraulics can achieve a satisfactory control of the two auxiliary hygiene parameters, pH value and redox
voltage. The dosed chemicals must reach all areas of the basin within a short time. Even under stress, the concentrations
measured in different areas must be approximately the same. The measuring water should be as close to identical to the basin
water as possible and must reach the measuring cell as quickly as possible. This is the only way to quickly detect and rebalance
changes in the water quality.
If the basin water is conducted through an overflow gutter and a compensation basin (splash water), which is potentially also used
for the freshwater feed-in, only the sampling of the measuring water directly from the basin will lead to satisfactory measuring and
control results.
At very low temperatures <5°C, the touch screen may become impaired due to the stiffness of the frontal film!
5.5 Provide external pre-filter
It is not possible for the pool operator to detect a contaminated pre-filter below the new design cover. For this reason, an external
pre-filter must be integrated in the measuring water inlet. Depending on the local conditions, the pre-filter can be installed directly
at the device or at any other installation site along the measuring water inlet. This has the advantage of making it possible to select
a more convenient access point for the pool operator.

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5.6 Installation suggestion
The following sketch shows an example of the integration of the IQntrol DOS MODBUS in the swimming pool’s water treatment
cycle. In most cases, a measuring water withdrawal between the filter pump and the filter boiler is sufficient. The water is
recirculated into the clean water line downstream of the heat exchanger. Two ball valves ½“ with immersion pipe for the
connection to the filter piping are provided with the accessories. The immersion pipe of the two ball valves should be shortened so
that it ends approximately in the middle of the pipe.
ATTENTION!
Since both chemicals are mixed in with the measuring water, the measuring water recirculation must occur in the
direction of the flow downstream of the heat exchanger in order to prevent corrosion.
If the pool is being operated with an overflow gutter and a splash water tank, into which freshwater is also allowed
to enter, marked differences in the water quality on the measuring cell and in the basin must be expected. In order
to ensure perfect control quality in this case, it is recommended that the measuring water is withdrawn directly
from the basin, using a separate measuring water pump.

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6Commissioning - Notices
Before the device can be commissioned, the following measures must be implemented. You can find the position of the parts
listed in the following under Item 4.4 Device description.
6.1 Control parameters
The device is loaded with factory-defined control parameters; see Commissioning protocol on page 25/29. Please adjust the
control parameters for your basin according to the required dosing performance and the desired set points. The factory setting for
the dosing performance is 100%, which should be sufficient for an outdoor pool of approx. 100 m³.
Tip
Parameter changes are saved to the SD card with a time delay. This can take up to two minutes. If the voltage supply
is interrupted prior to the backup on the SD card, the device continues to control using the values prior to the change.
That means, if a voltage interruption occurred shortly after a parameter change, the changed parameters must be
checked again and be readjusted, if necessary!
The newly determined adjustment values are also saved to the SD card with a time delay.
6.2 pH electrode
Remove the pH electrode from the packing box and pull off the protective cap. Remove the electrode cable’s union nut from the
electrode by twisting it to the left and screw the electrode into the measuring cell from above. Subsequently, the electrode plug
must be placed back onto the pH electrode and the union nut must be tightened.
Tip
Following a temperature adjustment and inflow time of approx. one hour, it should be checked whether the pH
electrode needs to be calibrated. For this purpose, the pH electrode must be unscrewed from the measuring cell
once again and be placed in the pH7 buffer solution. If the display value shows a deviation larger than 0.1pH, a
calibration must be conducted.
6.3 Cleaning beads
The enclosed blue glass beads serve for cleaning the redox electrode's platinum surface. Pull the cable from the redox electrode
and unscrew the electrode from the measuring cell. Place approx. 15 of the enclosed blue cleaning beads on the platinum surface
so that this area is covered. Screw the redox electrode back into the measuring cell and plug the cable's black plug back into the
electrode.
When screwing in the redox electrode, ensure that no glass beads are present in the thread.
ATTENTION!
Please ensure that all hose screw connections of the measuring water pipes are firmly tightened. Check all screw
connections at the device and at the two measuring water ball valves ½“. Plastic screw connections may only be
fastened hand-tight!
6.4 Measuring cell flow
Once all electrodes have been screwed hand-tight into the measuring cell and the measuring water pipes have been connected,
the ball valves may be opened. The measuring cell flow volume can be adjusted at the flow control valve. The flow mounting float
must be pushed toward the top in order to release the dosing. In order to keep the redox electrode clean, the cleaning beads must
rotate on the platinum surface, but they must not be allowed to lift off of the platinum surface.
6.5 Dosing cartridges
Push the two dosing cartridges onto the motor shaft.
6.6 Chemicals
Place the two chemical containers under the device. In order to protect the floor, it is recommended to place the containers in a
protective tray. Please observe the proper positioning of the container; oredopH value regulation chemical on the left and
oyellowodisinfection chemical on the right.
ATTENTION!
Please do not use hydrochloric acid for the pH value regulation. Hydrochloric acid diffuses through the dosing hose
and corrodes the dosing motor. This, in turn, causes premature wear and tear of the dosing pump.