BASENHURT Tebas-Economic EFka300 pH/Chlor User manual

1
Tebas-Economic
EFka300 pH/Redox
EN
INSTALLATION AND MAINTENANCE INSTRUCTIONS

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WARNINGS
This manual is dedicated to the technical personnel responsible of the installation, management and
maintenance of the plants. The manufacturer assumes no responsibility for damages or malfunctions occurring
after intervention by non-authorized personnel, or not compliant with the prescribed instructions.
Before performing any maintenance or repair action, ensure that the system is electrically and hydraulically
insulated.
Dispose of waste material and consumables accordingly with local regulations.
GENERAL SAFETY TIPS
WARNING! Before performing any operation on the pump, unplug the pump and discharge the liquid from the
pump head and tubes. Never operate on working pump!
During maintenance and repair of parts that normally become in contact with chemicals, always wear all
prescribed personal protections (gloves, clothes, glasses, etc.).
The pump has to be handled by qualified personnel only. Always use original spare parts for maintenance.
Failure to follow instructions can cause damage to the equipment and, in extreme cases, to people.
The manufacturer can modify the instrument or the technical manual without advanced notice.
Warranty
The device is warranted for a period of 12 months from the delivery date.
Warranty is not valid if all instructions of installation, maintenance and use, are not strictly followed by the user. Local
regulations and applicable standards have also to be followed.
In particular, the warranties regarding the operational safety and reliability of dosing pumps will be recognized only if the
following conditions are fulfilled:
oThe installation, wiring, adjustment, maintenance and repairs performed only by qualified personnel
oThe dosing pump was used according to instructions provided in this manual
oOnly original spare parts have been used for repairs
From the guarantee are excluded all consumables (tubing, seals, etc.). Mechanical damage is not covered under warranty.

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Table of content
PACKING LIST.............................................................................................................................................. 19
INTRODUCTION............................................................................................................................................ 19
INSTALLATION............................................................................................................................................. 19
TECHNICAL SPECIFICATIONS.................................................................................................................... 19
FUNCTIONAL DESCRIPTION OF THE SYSTEM ......................................................................................... 20
HYDRAULIC CONNECTIONS....................................................................................................................... 22
Suction Line.................................................................................................................................... 22
Bleed Line ....................................................................................................................................... 22
Injection Line .................................................................................................................................. 22
PRIMING........................................................................................................................................................ 23
ELECTRICAL CONNECTIONS ..................................................................................................................... 23
Level Control................................................................................................................................... 23
Flow Control.................................................................................................................................... 23
Internal Connections (for technical personnel only).................................................................... 23
START-UP..................................................................................................................................................... 24
VISUALIZATIONS ......................................................................................................................................... 24
OPERATION OF THE ELECTRONIC UNIT................................................................................................... 25
Standard Configuration.................................................................................................................. 25
Advanced Configuration ................................................................................................................ 25
List of Configuration Parameters .................................................................................................. 26
Electrochemical Calibration........................................................................................................... 28
Manual Mode................................................................................................................................... 29
CONTROL EXAMPLES................................................................................................................................. 29
ERRORS/ALARMS........................................................................................................................................ 30
MAINTENANCE............................................................................................................................................. 30
ACCESSORIES AND SPARE PARTS .......................................................................................................... 31

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PACKING LIST
The Tebas-Economic EFka300 is supplied complete with:
1. pH electrode with plastic body, 65 cm cable and BNC connector with protective sheath
2. Redox electrode with plastic body, 65 cm cable and BNC connector with protective sheath
3. pH and redox calibration solutions, 90 ml bottles (pH4, pH7 and 220 mV)
4. Two standard kits for electromagnetic pump, including:
•foot filter and injection valve, with PP body and FPM seals
•PVC Crystal, 4x6 tube for suction and bleed connections, 2+2 meters
•semi-rigid PE, 4x6 tube for injection line, 2 meters
5. Screws and stoppers for wall installation
6. Instruction manual
INTRODUCTION
The Tebas-Economic EFka300 is a compact system easy to install (wall) and maintain, which allows to monitor
and control the pH and redox potential levels in swimming pools.
The system includes a digital controller which operates accordingly with the set thresholds, two dosing pumps with a flow
rate of 10 l/h and input for level sensor, pH and redox electrodes with BNC connector, and down-flow probe-holder.
INSTALLATION
Warning! Always follow the warnings and general safety information referred at the beginning of this
manual!
Install the Tebas-Economic EFka300 away from heat sources, in a dry place protected from direct sunlight, at a maximum
ambient temperature of 45°C. The minimum temperature shall be such as to ensure the solution to be dosed remains in a
fluid state and in no case less than that declared in the “Technical specifications” section. The unit must be installed on a
vertical wall and securely clamped. Choose a location that allows easy calibration operations, use and maintenance.
Place the tanks of the products to be dosed below the pumps, without exceeding the maximum suction height of the pumps
(about 1.5 m). If the system is installed below the level of the liquid to be dosed, check the condition of the injection valves
or install appropriate anti-siphon kit. If the pump is placed above the tank and the reagent fumes could be especially
aggressive, check the tank seals.
Connect the connectors may be disconnected for packaging reasons to the respective inputs on the bottom of the
unit (see the “Functional description” section for further details).
TECHNICAL SPECIFICATIONS
pH/RX Inputs available on BNC connectors, input impedance > 10^12 Ω
Measure Ranges 0.00 to 14.00 pH, 0 to 1000 mV (redox),
0 to 100°C (optional, to be requested upon order)
Precision better than 1% of the full scale
Repeatability better than 0.2% of the full scale
Configuration two configuration level (standard and advanced)
LEV Inputs 2 independent inputs for level sensors, available on connectors, accept SPDT contact 5 V/5
mA
FLOW Input 1 input that can be used for connecting both the filter pump contactor or the flow sensor
(SPDT contact 5 V / 5 mA)
Serial Port RS232, available on external connector (optional)
Relay Output NO/NC configurable contact for alerting (optional)
Display large alphanumeric, double row (x 16 characters) LCD, with backlight
Electrode-holder down-flow type, transparent methacrylate body, with standard connections for 8x12 tube
and sampling needle

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Dosing Pumps Flow rate: 10 l/h @ 2 bar
Max working frequency: 140 injections/minute
Materials: PP pump head, PTFE diaphragm, Pyrex ball valves, FPM (or EPDM) seals
Max suction height: 1.5 m
Power Supply standard 230 V~, 50 Hz (other options upon request) ; 100W
Protection Fuse F3.15A 5x20 (a 230V~)
Environment Storage temperature -20 to +60 °C
Working temperature -10 to +45 °C
RH max 90% noncondensing
Casing self-extinguish plastic material with polyester front panel
Installation wall installation with supplied screws and stoppers
Protection Rate IP65
Dimensions 380 x 350 x 175 mm
Fixing Template 356 x 250 mm
Weight approx. 5 kg
Dimensions
FUNCTIONAL DESCRIPTION OF THE SYSTEM
Front view
- Control panel with large display and keyboard (see description on next page)
- Electromagnetic pump for acid dosage
- Electromagnetic pump for chlorine dosage
- Transparent methacrylate, down-flow type electrode-holder
- pH electrode with plastic body, 65 cm cable and BNC connector with protective sheath
- Redox electrode with plastic body, 65 cm cable and BNC connector with protective sheath

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Bottom view: connections
POWER: Power cable (already wired internally)
LEV1: Level sensor connector for acid pump / tank
LEV2: Level sensor connector for chlorine pump / tank
FLOW: Connector for flow sensor
pH: BNC connector for pH electrode
RX: BNC connector for redox electrode
Front panel
POWER LED Green light; slow flashing indicates that the unit is powered and normally functioning, while fast
blinking indicates a fault (lack of liquid to be dosed or pump disabled)
PUMP1, 2 LED Red light; lights at each pulse of the corresponding pump magnet
CAL Key Provides access to the “Configuration”, “Calibration” and “Manual Mode” menus; confirms parameter
modifications
⇓Key Scrolls the available menus/options; in calibration and configuration modes decreases the displayed
value; in manual mode decreases the pump working frequency
⇑Key Scrolls the available menus/options; in calibration and configuration modes increases the displayed
value; in manual mode increases the pump working frequency
ESC Key In calibration and configuration modes exits without saving the modifications; from manual mode
resumes to normal operations
ON/OFF Key Activate / de-activates the unit or confirms alarms; both the disabled dosing or alarm condition are
indicated by the POWER LED that flashes fast
(Warning! The unit remains disabled even in case of shutdown / restart)

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HYDRAULIC CONNECTIONS
Check that the suction line does not exceed the maximum height of 1.5 m from the tank bottom. Unscrew the pipe-wrench
nut and remove the two protective caps from fittings (in the case a pump head needs to be removed, it is recommended to
reuse the protective caps, to prevent any leakage from the pump body).
Note: If the product to be dosed is sulfuric acid, previously remove any water from the pump and use polyethylene pipes.
All operations to tighten the pipe connections of the pumps must be done by hand, without using any tools (e.g. pliers
squeeze tube), to avoid damaging the hydraulic connections.
Suction Line (also see drawing)
1. Unscrew the fixing nut of the suction fitting (located on the bottom of pump
head) and remove the protective cap.
2. Cut the PVC Crystal, transparent tube.
3. Insert the pipe-wrench and tube-press on the tube.
4. Mount the tube on the conic hose of the suction fitting, pushing it until it
reaches the stop collar.
5. Fix the tube by screwing the pipe-wrench nut onto the suction fitting of the
pump head.
6. Locate the PVC Crystal tube inside the tank and/or the suction lance.
7. Unscrew the pipe-wrench nut of the foot filter.
8. Cut the PVC Crystal, transparent tube.
9. Insert the pipe-wrench on the tube.
10. Mount the tube on the conic hose of the foot filter fitting, pushing it until it
reaches the stop collar.
11. Fix the tube by screwing the pipe-wrench nut onto the foot filter fitting.
12. Screw the foot filter onto the suction lance (if used) and/or locate it in its
working place.
Notes:
•The foot filter must be located at a minimum distance of 5 cm from the tank bottom.
•If a dense product is dosed, it is recommended to remove the small inside filter from the foot valve, in order to facilitate
the suction.
Bleed Line
1. Cut the PVC Crystal, transparent tube.
2. Insert the tube on the bleed outlet, located on the right side of the pump head.
3. Insert the other end of the tube in the tank of the product to be dosed, in order to recover the product that comes out
when the bleed valve is operated.
Injection Line (also see drawing)
1. Unscrew the fixing nut of the head fitting (located on the top of the pump head) and remove the protective cap.
2. Cut the white, semi-rigid, PE tube.
3. Insert the pipe-wrench and tube-press on the PE tube.
4. Mount the tube on the conic hose of the pump fitting, pushing it until it reaches the stop collar.
5. Fix the tube by screwing the pipe-wrench nut onto the head fitting of the pump head.
6. Place the head tube avoiding as much as possible the curves and ensuring that it does not rub against rigid bodies for
effect of the pulses.
7. Perform all electrical connections (see related section later in this manual) and power the pump.
8. At the injection point on the pipeline, mount a ½” GAS connection, internally threaded (not supplied).
9. Wrap PTFE tape to the thread and tighten the injection valve to the fitting.
10. Unscrew the pipe-wrench nut of the injection valve fitting.
11. Cut the white, semi-rigid, PE tube.
12. Insert the pipe-wrench on the PE tube.
13. Mount the tube on the conic hose of the injection valve, pushing it until it reaches the stop collar.
14. Screw the pipe-wrench nu tonto the valve fitting.
Note: The injection valve also works as non-return valve: do not disassemble it internally.

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PRIMING
Slightly open the bleed valve and set the manual operation at the maximum dosing frequency, to facilitate priming of the
pump. When the product to be dosed protrudes from the purge tube, close the valve.
Sometimes it is more effective slightly loosen the bleed valve, wait 4-5 seconds, close it, wait a few seconds and repeat the
operation.
Warning! Before performing any kind of operation on the pump, carefully read the HSDS of the chemical to be
dosed, in order to define the proper behaviors to be followed, and the personal safety equipment to be worn.
ELECTRICAL CONNECTIONS
The EFka300 is supplied already wired internally and complete with power cable (without plug).
This is the only electrical connection to be performed by the customer.
Standard power supply: 230 V∼, 50 Hz, monophasic.
Carefully follow all the rules of electrical safety.
Before starting the unit, check that all electrical and plumbing connections have been properly executed.
The measure inputs from pH and redox electrodes are available on BNC connectors, while inputs for level sensors
(one for each pump) and flow sensor are available on special connectors that allow an extremely fast and easy connection
even for unskilled personnel.
Note: the pH and redox inputs should never be left open; if an input is not used, you need to short-circuit it.
Level Control
The system is supplied already configured for disabling the dosage in case of low level in the tank. The
level control is made through a specific float sensor (optional, see “Accessories and spare parts”), to be
connected to pins 3 and 4 of the LEV connector (see Figure).
When the product level in the tank falls below the level sensor, the unit stops dosing and the fault is
shown on the display.
The alarm condition is generated with a delay of a few seconds compared to the detection of low level, to
avoid errors due to extreme situation (such as water surface).
Two inputs for level sensor are available, one for each pump/tank.
Flow Control
The system is supplied already configured for disabling the dosage in case of lack of water flow.
The control is made through a SPDT contact to be connected to pins 3 and of the FLOW connector
(see Figure). A specific flow sensor is also available (optional, see “Accessories and spare parts”).

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Internal Connections ( for technical personnel only )
The unit is provided internally prewired, and all connections of normal use (power supply, dosing pumps, measurement
sensors and flow sensor) are available externally via cable or connector.
However, if you need to operate on the electronic boards or replace blown fuses, refer to the diagram below.
Notes:
•The possible reversal of the connections line / neutral of the power supply does not affect the normal operation.
•If the level and flow inputs are not used, leave them open (not connected).
START-UP
At start-up the microcontroller displays for a couple of seconds information about the firmware (type/version), then shows
the two measures flashing for all the start-up delay time (if set) and then starts operating accordingly with the configured
working mode.
VISUALIZATIONS
During normal operations, the display shows the two measured values on the top line, while the bottom row displays the
status of the two pumps. In models with Pt100 (optional) the bottom row switches between the temperature measurement
and the status of the two pumps.
For example: “7.25pH 286mV”
“65i/min 78i/min”
In these conditions, pressing the ⇓or ⇑button, you can display the OFFSET and GAIN values of the pH and redox
measurements.
For example: “7.25pH”
“O=-4 G=1.000”
This information is useful to verify the electrode status. Note that an electrode in good condition should have an offset close
to zero and a gain close to 1.000. When these values deviate from the ideal ones, indicate a dead electrode or sensor
aging.
IN
Chlorine
Power
Transformer
Fuse F3.15A
Y/G Br Br
Pump 1
Y/G N L
Power Supply
µProcesor
PT100
Br Bk Bl
Flow
+ -
Level 1
Connector for front board flat cable
Y/G Br Br
Pump 2 IN
pH
Reserved
OUT
Alarm
+ -
Level 2

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During manual working mode, the display shows on the top line the pump to which the information refers, while the bottom
row shows the pump status and working frequency.
For example: “Pump 2 manual”
“ON 78i/min”
In these conditions, pressing the ⇓or ⇑button, you can respectively decrease or increase the working frequency, while the
ON/OFF button allows to enable / disable the pump.
In case of fault or alarm condition, the working frequency is automatically set to “0i/min” and the pump stops dosing until
the normal working conditions are restored.
OPERATION OF THE ELECTRONIC UNIT
To access the configuration, calibration and manual mode menus, press the CAL button. The display will show the
following available options:
•Standard Configuration
•Advanced Configuration
•Calibration IN1 (input 1) pH
•Calibration IN2 (input 2) redox
•Manual Mode 1 (pump 1, acid dosage)
•Manual Mode 2 (pump 2, chlorine dosage)
Use the ⇓/ ⇑keys to scroll the available options, then press CAL to enter the highlighted mode or ESC to return to
measurement visualization.
For a complete list of parameters, valid values and related explanations, see the “List of Configuration
Parameters” section.
Standard Configuration
The standard configuration mode allows the customer to set a series of parameters related to the normal functioning of the
unit. These parameter can be freely accessed and configured from the front keyboard.
1) Once selected the “Standard Configuration” option, press
the CAL button to edit the list of parameters, or press ESC
to return to the normal visualization mode
2) Now use the ⇑ and ⇓ keys to scroll the list of the available
parameters
3) To modify the displayed parameter, press CAL; to quit the
mode press ESC
Advanced Configuration
The advanced configuration mode also includes the parameters protected by password, that allow a complete configuration
of the system. This mode is normally accessed only by authorized technical personnel.
1) Once selected the “Advanced Configuration” option, press
the CAL button to edit the list of parameters, or press ESC
to return to the normal visualization mode
2) Now use the ⇑ and ⇓ keys to scroll the list of the available
parameters
3) To modify the displayed parameter, press CAL; to quit the mode press ESC
S T A N D A R D C O N F I G .
C A L > Y E S E
>
S C > N O
P 0 1 F U N C . T Y P E P 1
O n O f f
A D V A N C E D C O N F I G .
C A L > Y E S E S C > N O

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List of Configuration Parameters
In this section are listed all the configuration parameters.
It is recommended to fill the last column with the values set for your application.
PAR. Description Min Value Max Value Default Value Set Value
P01 Functioning Type Pump 1 ON-OFF / Proportional ON-OFF
P02 Setpoint Pump 1 0.00pH 14.00pH 7.00pH
P03 Hysteresis Pump 1 0.20pH 2.00pH 0.50pH
P04 Dosage Pump 1 Acidification / Alkalinisation Acidification
P05 Frequency Pump 1 0 imp/min 150 imp/min 60 imp/min
P06 Functioning Type Pump 2 ON-OFF / Proportional ON-OFF
P07 Setpoint Pump 2 0mV 1000mV 750mV
P08 Hysteresis Pump 2 20mV 200mV 50mV
P09 Dosage Pump 2 Chlorination / De-chlorination Chlorination
P10 Frequency Pump 2 0 imp/min 150 imp/min 60 imp/min
P11 Alarm Pump 1 0min 240min 0min
P12 Alarm Pump 2 0min 240min 0min
P13 Start Delay 0min 60min 0min
P14 Language Italiano - English
Français - Español English
P15 Restore default values 0 255 0
P16 Password 0 255 0
P17 Alarm Functioning Relay NO / Relay NC Relay NO
P18 Flow Functioning Input NO / Input NC Input NO
P19 pH Equilibrium 0min 240min 0min
Warning! Warning! The complete list of parameters can be accessed only from the “Advanced Configuration”
menu, while the “Standard Configuration” mode allows to modify only the parameters that are not protected by
password (highlighted in bold in the table above).
PARAMETER 01 FUNCTIONING TYPE OF THE PUMP 1
This parameter allows to set the functioning type of pump 1, typically used for the pH control.
If the “On-Off” mode is selected, the pump activates automatically when the set threshold is exceeded, working at the set
frequency, and stops dosing when the measurement reaches the required value.
If the “Proportional” mode is selected, the instrument calculates the pump working frequency depending on the measured
value, then as the measurement approaches the required value, the pump automatically slows down its frequency to a
stop. In this way, the desired value can be reached avoiding overdoses due to delays in reading or wrong speed of the
dosing pump.
PARAMETER 02 SET-POINT PUMP 1
This parameter allows to enter the desired pH value for the swimming pool water. The dosing pump is activated / de-
activated to reach this value and keep it constant.
PARAMETER 03 HYSTERESIS PUMP 1
This parameter is sued to adjust the functioning hysteresis of pump 1 around the threshold set in P02. It is recommended
to set a narrow window in case of ON-OFF mode, while for proportional mode it is advisable to set a window of at least
points.
PARAMETER 04 DOSAGE DIRECTION OF PUMP 1
This parameter allows to set the dosage direction. The choice depends on the product dosed to adjust the pH level: if you
dose an acid, set this parameter to “Acidification”, while if you dose a base set “Alkalinisation”.

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PARAMETER 05 WORKING FREQUENCY OF PUMP 1
If the pump is configured for ON-OFF mode, this parameter is the working frequency of the pump.
If the pump is configured for proportional functioning, this parameter states the maximum working frequency of the pump
(when the measurement is far from the set threshold).
PARAMETER 06 FUNCTIONING TYPE OF THE PUMP 2
This parameter allows to set the functioning type of pump 2, typically used for controlling the redox potential level. See
description of parameter P01.
PARAMETER 07 SET-POINT PUMP 2
See parameter P02, but referred to redox measurements.
PARAMETER 08 HYSTERESIS PUMP 2
See parameter P03, but referred to redox measurements.
PARAMETER 09 DOSAGE DIRECTION OF PUMP 2
See parameter P04, but referred to redox measurements and dosing directions “Chlorination / De-chlorination”.
PARAMETER 10 WORKING FREQUENCY OF PUMP 2
See parameter P05, but referred to redox measurements.
PARAMETER 11 DOSAGE ALARM OF PUMP 1
This parameter allows to generate an alarm when the measurement does not return to the setpoint value within a set time
interval, from 0 (function disabled) to 240 minutes. The counter starts when the unit detects a measurement that exceeds
the setpoint value, and automatically resets to zero when measurement returns to an acceptable. If measurement remains
outside of the setpoint for a time longer than that set, an alarm is generated, the display shows the message “AL.1” and the
pump stops dosing. To reset the alarm and resume to normal operations, press the ON/OFF button or shutdown and
restart the unit. This condition can occur when the dosage is insufficient to reach the setpoint (P02).
PARAMETER 12 DOSAGE ALARM OF PUMP 2
See parameter P11, but referred to pump 2.
PARAMETER 13 START-UP DELAY
This parameter allows to set a start-up delay, which is a time of waiting before starting measurements to allow the correct
polarization and stabilization of the measuring electrodes. This prevents unreliable initial readings. Typically in the case of
pH measurements one minute is enough, while for redox electrodes may be necessary a delay of 30 minutes. This waiting
time also allows to compensate for any hydraulic delays which may occur at the start-up of the plant.
Set a time (in minutes) during which, after turning on the electronic unit, the system waits, measurements blink on the
display and the pumps are not active. After this time, the system begins normal operation .
PARAMETER 14 LANGUAGE
This parameter allows to select the display language.
PARAMETER 15 RESTORE THE DEFAULT SETTINGS
This feature allows to restore the factory configuration if you want to delete incorrect or undesired settings. Once confirmed
this option, all custom setting will be lost. To enable the feature, enter the value “12” .
PARAMETER 16 PASSWORD
This parameter allows to enter a password (numeric value within 1 and 255) to protect the system from unauthorized
access. Once set and confirmed, the password will be requested to access the menus “Advanced configuration” and
“Manual mode”.
The instrument is supplied with no password set (P16=0).
Warning! If you forget the password, you need to send back the unit to the factory for a complete reconfiguration (out of
warranty)!
PARAMETER 17 FUNCTIONING OF THE ALARM OUTPUT
This parameter allows to select the functioning mode of the alarm relay, normally open “NO” (factory setting) or normally
closed “NC”.
PARAMETER 18 FLOW FUNCTIONING
This parameter allows to select the functioning mode of the “flow” input, normally open “NO” (factory setting) or normally
closed “NC”.

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Warning! The inversion of this parameter compared to the default setting can determine the functioning of the device even
in the absence of flow!
PARAMETER 19 pH EQUILIBRIUM
This parameter allows to set a maximum waiting time before activating the chlorine adjustment, during which only the pH
adjustment is active.
This time is counted from the start-up of the equipment, simultaneously to a possible start-up delay set in P13, during which
the entire measuring system is in stand-by.
In other words, the pH adjustment is activated after the start-up delay (P13) has elapsed, while the chlorine regulation is
activated when the pH reaches the set threshold (P02) or in any case at the end of the “pH Equilibrium” period.
For example, if a 1-minute start-up delay is set and you want the pH is adjusted for a maximum of 15 minutes before also
activate the chlorine regulation, the “pH Equilibrium” time should be set to 16 minutes.
To disable this feature, simply set the parameter to 0 (default).
Notes:
•Once in configuration mode, if no button is pressed for 30 seconds, the unit automatically returns to the idle mode.
•The system is factory configured with default values; you can delete undesired settings and restore the initial
configuration, using the “RESTORE” function (P15).
Electrochemical Calibration
pH Calibration
1) Rinse the pH electrode with distilled water, then immerse it in the pH 7.01 pH buffer solution
2) Press the CAL key to enter the menu mode and use the ⇑/ ⇓
keys to select the option “IN1 CALIBRATION”
3) Press CAL again to confirm
4) Press ⇓to select the OFFSET calibration and confirm by
pressing CAL
5) The system automatically recognizes and displays the buffer
value (7.01 pH)
6) If necessary, use the ⇑/ ⇓keys to adjust the calibration value
7) Press CAL to confirm the calibration, or ESC to quit the procedure and keep the previous calibration
8) Rinse the pH electrode with distilled water, then immerse it in the pH 4.01 (or 9.01) buffer solution
9) Press the CAL key to enter the menu mode and use the ⇑/ ⇓
keys to select the option “IN1 CALIBRATION”
10) Press CAL again to confirm
11) Press ⇑to select the GAIN calibration and confirm by
pressing CAL
12) The system automatically recognizes and displays the buffer
value (4.01 or 9.01 pH)
13) If necessary, use the ⇑/ ⇓keys to adjust the calibration value
14) Press CAL to confirm the calibration, or ESC to quit the procedure and keep the previous calibration
Notes
If the system does not automatically recognize the buffers or the “Calibration Impossible” error occurs, it can be due to:
a) buffer solution contaminated or expired
b) electrode faulty or dead
c) connection cable or connector damaged
If you try to calibrate the offset at a pH value too different from 7.00, the calibration is automatically ignored. Similarly if
you try to calibrate the gain with a buffer solution at a pH too close to neutrality, the procedure will fail.
During normal operation, it is possible to view the offset (pressing ⇓) and gain (pressing ⇑) values, to check the
electrode status. The ideal values are an offset close to zero and a gain close to 1.000. When these values are close
to the max / min limits (offset: -1.00pH ... +1.00pH; gain: 0.750 ... 1.500), the electrode is contaminated or dead.
I N 1 C A L I B R A T . P H
C A L > Y E S E S C > N O
I N 1 C A L I B R A T . P H
⇓
O F F S E T ⇑ G A I N
I N 1 C A L I B R A T . P H
C A L > Y E S E S C > N O
I N 1 C A L I B R A T . P H
⇓
O F F S E T ⇑ G A I N

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Redox Calibration
1) Rinse the electrode with distilled water, then immerse it in the calibration solution (e.g. 220 mV)
2) Press the CAL key to enter the menu mode and use the ⇑/ ⇓
keys to select the option “IN2 CALIBRATION”
3) Press CAL again to confirm
4) Press ⇓to select the OFFSET calibration and confirm by
pressing CAL
5) The system automatically recognizes and displays the solution
value (220 mV)
6) If necessary, use the ⇑/ ⇓keys to adjust the calibration value
7) Press CAL to confirm the calibration, or ESC to quit the procedure and keep the previous calibration
Notes
If the system does not automatically recognize the buffers or the “Calibration Impossible” error occurs, it can be due to:
a) calibration solution contaminated or expired
b) electrode faulty or dead
c) connection cable or connector damaged
During normal operation, it is possible to view the offset value by pressing ⇓, to check the electrode status. The ideal
offset value is close to zero. When this value is close to the max / min limits (-100mV ... +100mV), the electrode is
contaminated or dead.
Manual Mode
At any time you can force a manual working mode, useful for a temporary use of the system.
If a password has been set (see parameter P16), the system will require it to enable the access to this feature.
1) Press the CAL key to enter the menu mode and use the ⇑/ ⇓
keys to select the option “MANUAL FUNC.1” (or “MANUAL
FUNC.2”)
2) Press CAL again to confirm
3) Similarly proceed for pump 2
4) Press ESC at any time to exit the manual mode
Warning! In manual mode only one pump at a time can be activated.
CONTROL EXAMPLES
Typical application in swimming pool control: acidification when pH exceeds the pH value of 7.30.
Refer to the “List of configuration parameters” and set:
-P01 ON/OFF working mode for pump 1
-P02 set-point 7.30 pH
-P04 dosage direction “ACIDIFICATION”
-P05 if the quantity of the product to be injected is not known, it is recommended to start with a low working frequency
(e.g. 20 pulses/minute), and if the acidification process would last too long, increase the frequency gradually until a
conditioning time of approx. 30-45 minutes
- P11 alarm pump 1 = 60 minutes
Typical application in swimming pool control: chlorination when redox potential falls below 680 mV. Refer to the “List of
configuration parameters” and set:
-P06 PROPORTIONAL working mode (recommended for an easier stabilisation)
-P07 set-point 680 mV
-P09 dosage direction “CHLORINATION”
-P10 if the quantity of the product to be injected is not known, it is recommended to start with a low working frequency
(e.g. 20 pulses/minute), and if the chlorination process would last too long, increase the frequency gradually until a
conditioning time of approx. 30-45 minutes
-P12 alarm pump 2 = 60 minutes
Common settings for the two examples described above:
-P13 start-up delay of 15 minutes (average time required for the polarization of redox electrodes)
-P16 protection PASSWORD to prevent unauthorized access
M A N U A L F U N C . P 1
C A L > Y E S E S C > N O
M A N U A L P U M P 1
O F F 0 i / m i n
I N 2 C A L I B R A T . R X
C A L > Y E S E S C > N O
I N 2 C A L I B R A T . R X
⇓
O F F S E T

30
ERRORS AND ALARMS
Every error or anomaly detected by the system generates an alarm message on the display:
LEV1 / LEV2 The level sensor 1 or 2 detected a low level of the liquid to be dosed; restore the level into the
related tank
FLOW The flow sensor detected an anomaly that can be due to low pressure into the hydraulic circuit
or wrong adjustment of the flow sensor in the electrode-holder; restore the flow or adjust the
sensor
STOP This message indicates that the pumps have been manually de-activated by pressing the
ON/OFF button
UR / OR Under/Over Range: measurement out of range; this signal can be generated by a dead or
broken electrode, or by a damaged or disconnected cable; check the system and restore
correct measurement conditions
AL.1 / AL.2 Dosing time alarm for pump 1 or 2: measurement is outside the set-point for a time longer than
the set limit, due to an insufficient dosage or a wrong configuration of the alarm time (see
parameters P11 and P12); set the parameters properly
Calibration Impossible Check the status of electrode and connection cable; check that the calibration solutions are
not expired or contaminated; repeat the procedure
MAINTENANCE
The periodic maintenance operations are essential for the proper functioning of the system and its duration in time. The
below advices should be strictly followed.
Before any operation, make sure the system is unplugged!
Dosing Pumps
For a perfect seal, after about 800 hours of work, it is recommended to tighten the bolts of the pump by applying a torque of
4 Nm.
Weekly operations:
-Check the level of the solution to be dosed to prevent the pump from running dry
-Check that the suction and head pipes are clean and not containing any impurities
-Check that the filter is not clogged to avoid the decreasing of flow rate
Operations every three months (or in case of pump drifting):
-Clean all the parts that come into contact with the chemical (pump body, foot filter and injection valve). If the pump
doses additives that from crystals, clean more frequently.
Proceed as follows:
oDip the suction tube and the foot filer into clean water
oStart the pump and leave it run for a few minutes to let the water wash the pump head
If there are crystals to remove, proceed as follows:
oFirst use a proper chemical (instead of water) to dissolve the crystals (e.g. hydrochloric acid for sodium
hypochlorite crystals) and let the pump work for a few minutes
oRepeat the procedure with clean water
Once the cleaning is done, connect again the pump to the plant and resume normal operations.
Replacement of worn parts:
-Valve replacement:
oUnscrew the upper and lower connections using a 24 mm spanner
oInstall and tighten the new fittings
-Replacement of the pump head O-ring and diaphragm: this maintenance must be performed only by authorized
personnel - Contact the technical service
-Fuse replacement: this maintenance must be performed only by authorized personnel - Contact the technical service

31
pH and Redox Electrodes
Typically, it is recommended to clean the electrodes when the response is slow or measurements are not reliable, and
when they have been used for a long time, especially in aggressive solutions, pollutants, very acidic or very alkaline
environments.
We provide a kit of solutions for the cleaning and storage of pH and redox electrodes.
The kit includes three solutions:
-Solution A: dip the electrode in this solution for cleaning it
-Solution B: use this solution to rinse the electrode, before and after cleaning
-Solution C: storage solution to be used for filling the electrode protective cap when the electrode is not used
(wintering, closure of the plant)
ACCESSORIES AND SPARE PARTS
Item Description Code
pH Electrode Combined pH electrode with short plastic body, black head, 65 cm cable
and BNC connector 8009.2231
RX Electrode Combined redox electrode with platinum sensor, short plastic body,
black head, 65 cm cable and BNC connector 8019.2231
SDE Transparent methacrylate, down-flow probe-holder with standard
connections for 8x12 tubes and sampling needle 8061.0252
Flow control kit for SDE electrode-holder 9700.9203
EFK1-SGV Complete PP pump head with Pyrex ball valves and FPM seals, for
pumps 9700.2101/SGV
EFK2-SGV Kit of suction / head valves with PP body, Pyrex ball and FPM seals, for
EFka pumps 9700.2000/SGV
EFK3-SGV Kit of suction / head / purge valves and O-ring for pump head. PP valves
with Pyrex ball, FPM seals and O-ring 9700.2001/SGV
EFK4 Maintenance kit including flange, PTFE diaphragm for pumps EF-
C11/C12, and FPM O-ring for pump head 9700.2021
EFK5 Kit purge with PP valve and FPM seals 9700.2026
EFK6-SGV
Standard accessory kit for pumps with FPM seals, including: foot filter
and injection valve with PP body and Pyrex ball, 4x6 PVC Crystal tube
(2+2 m), 4x6 in PE tube (2 m)
9700.2010/SGV
SLP2 Level sensor with 2 m cable and connector 9700.9002
pH4-S pH 4 buffer solution, 90 ml bottle 8009.0095
pH7-S pH 7 buffer solution, 90 ml bottle 8009.0096
RX220-S Redox calibration solution (220 mV), 90 ml bottle 8019.0091
KRE Cleaning and storage kit for pH and redox electrodes 8009.9902