ETATRON eSelect M 1 PH Controller Instruction Manual

eSelect M 1 Cl

OPERATING INSTRUCTIONS AND MAINTENANCE

UNI EN ISO 9001-2015

WASTE OF ELECTRICAL AND ELECTRONIC EQUIPMENT DIRECTIVE (WEEE, RAEE in Italy) UP TO LAST EDITION

The marking shown below indicates that the product cannot be disposed of as part of normal household waste. Electrical and Electronic Equipment (EEE) can contain materials harmful to health and the environment, and therefore is subject to separate waste collection: it must be disposed of at appropriate waste collection points or returned to the distributor against purchase of new equipment of similar type or having the same functions. The directive mentioned above, to which make reference for further details, provides for punitive actions in case of illegal disposal of such waste.

CERTIFICATE OF CONFORMITY

ETATRON D.S. S.p.A.

Head Office
Via dei Ranuncoli, 53 – 00134 ROMA • ITALY
Tel. +39 06 93 49 891 • Fax +39 06 93 43 924
C.C.I.A.A. 535990 – Trib. di Velletri 5170/85 • Cod. Fisc. 06632160583
P. Iva 01585941006 • N. Export M/7011798
Internet: www.etatronds.com   e-mail: info@etatronds.com

AS MANUFACTURER OF CHEMICAL DOSING PUMPS

series: eControl, eSelect, AG-Select, AG-S/Control, ePhoton, Laundry Control System, Flow Meter PN

Under our own responsibility we declare conformity in accordance with the following directives:

2014/30/UE: “Electromagnetic Compatibility”
2014/35/UE: “Low voltage”
2012/19/UE: “RAEE”

In addition, in accordance with the following regulations:
UNI EN ISO 12100:2010, CEI EN 60204-1:2016, CEI EN 55014-1:2017

This certificate confirms equipment supplied marked and technical documentation including operating manual and spare parts manual.
This declaration conforms to the above directive an integral part of the manufacturer operating manual.

ETATRON D.S.
Sole Director
NicolaCarbone

(Rome) Italy, Date: 01/01/2019

Warnings

Read the warnings below carefully. They provide important information regarding safe installation, use and maintenance. Store this manual with the utmost care for future reference.

The device is built to a professional standard. Its durability and electrical and mechanical reliability will be more efficient if it is used properly and maintenance is carried out on a regular basis.

ATTENTION: Any work or repairs inside the device must be carried out by qualified and authorised personnel. We assume no liability due to failure to comply with this rule.

WARRANTY: 1 year (excluding parts subject to normal wear where applicable, namely: valves, fittings, pipe clamps, tubes, filter and injection valve). Improper use of the device will void this warranty. The warranty is understood as ex-works or authorised distributors.

Symbols used in the manual

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FORBIDDEN

Precedes information regarding safety. Indicates a forbidden operation.

| ATTENTION

Precedes very important text to protect the health of exposed persons or the machine itself.

|

INFORMATION NOTE

Precedes information concerning use of the device.

Transport and handling

The device must be transported as indicated on the box. Shipping by any means, even if free of carriage of the purchaser or recipient, is carried out at the purchaser’s risk. Complaints for missing materials must be submitted within 10 days of arrival of the goods and within 30 days of receipt for defective material. If the device is to be replaced, this must be agreed upon with authorised personnel or the authorised distributor.

Intended use of the device

The device must be solely used for the use it has been expressly constructed for, i.e. to measure pH/Rx. Any other use is considered improper and therefore dangerous. The device is not intended to be used for any applications not foreseen at the design stage. For further explanations, the customer must contact our offices for information on the type of instrument in their possession and its correct use. The manufacturer shall not be held liable for any damage resulting from improper, erroneous or unreasonable use.

Risks

After removing the packaging, check the integrity of the device. If in doubt, do not use it and contact a qualified technician. The packing materials (such as plastic bags, polystyrene, etc.) must not be left within the reach of children since they are potentially dangerous.

Before connecting the device, make sure that the rating corresponds to that of the mains. The rating is displayed on the adhesive label on the device itself

The execution of the electrical system must comply with the standards that define professional workmanship in the country where the system is made.

Use of any electrical device implies observance of some fundamental rules. In particular:

• do not touch the device with wet or damp hands or feet (e.g. swimming pools);
• do not leave the device exposed to atmospheric agents (rain, sun, etc.);
• do not allow the device to be used by children or persons incapable of using it without surveillance.
• In case of failure and/or malfunctioning of the device, switch it off and do not tamper with it. For any repairs, please cont act our service centres and request the use of original spare parts. Failure to comply with the above can jeopardise the safety of the pump.
• If you decide to no longer use a device, it is recommended to make it inoperable by unplugging it from the mains.
• Make sure it is switched off electrically (both polarities), disconnecting the conductors from the contact points of the mains by opening the omnipolar switch with at least 3 mm between the contacts.

Assembly of the instrument

All instruments produced are normally supplied already assembled. For wall installation see paragraph “ Wall assembly ”.

Disassembly of the instrument

Always pay the utmost attention when disassembling the instrument or before performing maintenance on it. Always disable electrical connections beforehand.

INSTRUMENT ESELCT M1 CL

General features

eSelect M1 Cl is a multi-purpose instrument for a single parameter suited for measuring the Free (Residual) or Total CHLORINE by using the relevant sensor. The eSelect M series offers whole high quality performance in terms of measurement and functions that make it possible to meet most requirements for an instrument. It offers many features that make it extremely versatile and easy to use.

The chlorine measurements may be chosen based on the type of sensor used and relevant measurement range:

• Residual Chlorine or Total Chlorine measurements using the respective sensors and buffer solutions of reference;
• Ion-selective type membrane sensors with operational ranges 0-2 Cl ppm (preset); 0-20 Cl ppm; 0-20 Cl ppm (Total);
• Open type chlorine amperometric cell (model CLC) with operational range 0-10 Cl ppm
• Ethernet connection (LAN) external module, Modbus TCP + memory card with ETACLOUD software (not included)
• Timed AUX output programming; Adjustable real-time timer; switch-on time programming.

ADVANTAGES: the features described above allow the operator to have one type of instrument only, thus reducing the value of the stock and avoiding problems when placing an order from the manufacturer.

Two types of programming menus:

• Basic: simplifies programming for household applications such as small swimming pools or water treatment systems
• Expert: in the case of professional applications, makes it possible to fine-tune the measurements and safety functions.

The programming menu is simple and self-explanatory and the wide and elegant display assures easy viewing.

Main features

• Device manufactured according to standards
• Case made of: ABS plastic
• Level probe arrangement (to check chemicals)
• Output relay for setpoint values
• mA outputs
• AUX timer external unit remote control output
• Level probe input for tank (not included)
• RS485 / Ethernet external module connection
• Proximity sensor
• PT100 temperature sensor
• 100/240 VAC power supply 50/60 Hz single-phase (maximum ±10% fluctuations are permitted); on demand 12/24 V

Dimensions of the instrument

Main additional functions

Setpoint

|

Relay 1 – 2 outputs

| 2 setpoints| Independent settings to start up metering pumps or peristaltic dispensers in ON-OFF or proportional mode
Setpoint| Adjusts the setpoint value (ON-OFF mode)
Hysteresis| Selects a measurement range around the setpoint value, activating the output relays (ON-OFF)
Direct – Reverse CL chlorine| Selects the metering direction
ON-OFF / PWM proportional modular pulse mode| Output in ON-OFF mode or in PWM proportional Time/Pause pulses activate metering pumps
Delay on setpoint value| Selects a delay time (max 999 sec adjustable) before activating the output relay

Relay 3 AUX Output

| The real-time clock controls remote appliances or devices in a very accurate manner: programming time/days/weeks and start-up time and operating duration

Alarm 4 Relay

| Min Alarm / Max Alarm| Alarm function that, on exceeding a minimum and/or maximum value, switches on the alarm relay

4-20 mA1-2

|

mA devices outputs

| Controls the data logger, PLC, recorder or devices suited to processing an mA signal

Setpoint metering

| Controls mA metering pumps or devices suited to processing an mA signal

Calibration

| Calibration menu for ion-selective membrane or open type amperometric cell chlorine sensor

System settings

|

Flow sensor

| Switches on/off the instrument via the flow sensor input (proximity sensor)

Manual temperature

| Selects the manual temperature offset 0-100°C

Automatic temperature

| Offsets the temperature via a PT100 probe

RS485/Ethernet

| Remote control via external RS485 / ETHERNET module, Modbus protocol with ETATRON SmartApp® Software. The operator connects the unit via a PC, a smartphone or a tablet.

INSTALLATION

Install the instrument away from heat sources in a dry place at a maximum room temperature of 40°C.

Comply with standards in force in the different countries regarding electrical installation (Fig. 2). If the power cord does not have a plug, the device must be connected to the mains by means of an omnipolar disconnecting switch with at least 3 mm between the contacts. All the power supply circuits must be interrupted before accessing the connection devices.

Fig. 1 – Electrical connection

1. 100 – 240 Vac 50/60 Hz
2. BLUE – BLU
3. BROWN – MARRONE
4. YELLOW/ GREEN – GROUND
   GIALLO/VERDE – TERRA

Wall installation

The wall-mounting plugs are supplied with the device. Always use a plug suitable to the available support. The layout of the holes to be drilled on the support is displayed in Figure 2.

Fig. 2 – Measurements for wall fixing 226l x 146h

1. Covers ( A ) x 4

To access the 4 installation holes, remove the covers on the installation points (A) found on each corner of the instrument, use a Phillips screwdriver to loosen the four screws underneath the covers, then open the front panel (see Fig.2).

The casing has 4 captive screws to quickly open/close the cover, thereby allowing for easy access for commissioning and servicing, as well as assuring excellent seal for long-lasting operation

• Install the unit in a dry place away from heat sources. Max room temperature 40°C.
• Strictly comply with the regulations in force in the various countries regarding electrical systems.
• Fit the instrument on the wall using the screws supplied

Diagram of electrical connections

To connect the accessories and peripheral devices to the instrument, remove the front cover screws, using a Phillips screwdriver to reach the connecting terminal boards.

The terminal boards consist of spring terminals for quick coupling of the wires. Press the square “slotted” pin with a small flat headed screwdriver and insert the stripped wire in the corresponding terminal. ATTENTION: exert slight pressure on the spring pin to avoid irreparably damaging the terminal board.

Do not connect more than one device to each pin

Run the wires to be connected through the cable glands on the case wall.

Fig. 3 – Connection diagram

TERMINAL BOARD “A”

COM|

Relay 1

| Setpoint 1 CL CHLORINE ON-OFF / PWM output relay timed pulses

NO

COM|

Relay 2

| Setpoint 2 CL CHLORINE ON-OFF / PWM output relay timed pulses

NO

COM|

Relay 3

| Auxiliary ON-OFF AUX output for remote equipment with Timer programming

NO

COM|

Relay 4

| ALARM ON-OFF relay output for external signalling device

NO

TERMINAL BOARD “B”

IN 1

| Digital input of the level probe for the chemical tank

IN 2

| NOT Connected

IN 3

| Proximity Sensor input BLACK + / BLUE – wires

TERMINAL BOARD “C”

+12VDC out

| 12 VDC output of the Proximity Sensor BROWN wire

4/20 mA1

| (+) Proportional output Cl CHLORINE 4-20 mA1 for metering pump mA, PLC or data collection

–

| (-) Proportional output Cl CHLORINE 4-20 mA2 for metering pump mA, PLC or data collection

4/20 mA2

| (+) Proportional output Cl CHLORINE 4-20 mA2 for metering pump mA, PLC or data collection

TERMINAL BOARD “D”

+

| PT100 temperature probe (RED wire)

S +

| PT100 temperature probe (BLUE wire)

S –

| PT100 temperature probe (GREEN wire)

–

| PT100 temperature probe (YELLOW wire)

TERMINAL BOARD “E”

A|

ORANGE wire

| Connection for RS485 / ETHERNET external module.
For connection to the ETACLOUD , the external KIT CONNECT module must be connected (NOT included with the instrument) code KST0000101 KIT CONNECT X INSTRUMENTS SERIES M

B

|

YELLOW wire

–

|

BLACK wire

+

|

Not Connected

TERMINAL BOARD “F”

| NEW membrane Chlorine sensor| Open Chlorine cell|

OLD membrane Chlorine sensor

–

| Not Connected| Not Connected| White Wire
+| Red Wire| Not Connected|

Brown Wire

M

| Grey Wire| BLUE Wire| Green Wire
0| Black Wire| Brown Wire|

Yellow Wire

ESELECT M1 PH(RX)

Control Panel

The following picture shows the control panel with a description of the functions of the various keys.

Fig. 4 – Keypad

1

| | Button to scroll the menu to the left and decrease values
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2

| | Button to quit the menu

3

| | Button to enter the menu and confirm selections

4

| | Button to scroll the menu to the right and increase values

5

| Display

OPERATING FUNCTIONS

ON-OFF mode

The unit features an ON-OFF mode that enables (or disables if the reverse mode is ON) the output relays of the metering pumps, peristaltic pumps or other equipment.
ADVANTAGES: it works with the great majority of ON-OFF devices, which are also cost-effective.

DIRECT / REVERSE direction

The setpoint relays are factory set as follows:

Setpoint 1 CL: DIRECT mode, the output is active when the measured value is lower than the selected setpoint, the metering pump injects an oxidising solution.
Setpoint 2 CL: REVERSE mode, the output is active when the measured value is higher than the selected setpoint, the metering pump injects a reducing solution.

MIN / MAX ALARM function

The Alarm function makes it possible to select the minimum and maximum values outside which the instrument triggers an alarm.
ADVANTAGES: increasing safety measures assuring an alert if the parameters are out of control.

HYSTERESIS

Hysteresis is useful during operations to adjust the setpoints in ON-OFF mode and is used to enable or disable the output relays when the selected hysteresis is achieved. Hysteresis is useful when there are too many quick swings around the setpoint, that might damage the connected device. By increasing hysteresis it is possible to move away from the setpoint value in accordance with the required value.

Example with CL chlorine with range 2 Cl ppm: if the selected setpoint is 1 Cl ppm and hysteresis is set at 0.050 Cl ppm, the two activation values are 0.95 and 1.05 Cl ppm; within this range, the setpoint is OFF and outputs are blocked, outside this range the setpoint is ON (always according to Direct or Reverse mode).
ADVANTAGES: assuring proper system control without straining the connected device.
DISADVANTAGES: the user must remember that the programmed hysteresis is slightly different from the required setpoint.

DELAY output response delay on setpoint

The Delay time blocks the output relays (max 999 sec. programmable) to ensure the outputs are active only when the sensor measurements are stable, thus assuring the best results in terms of chemical balance.

PROPORTIONAL – PWM mode: Timed “Pulse Width Modulation”

PWM “pulse width modulation” supports a proportional mode on each setpoint activating at the pulse, with a change of the Start/Stop cycle time according to the measured value with respect to the setpoint.
Pulse width: pulses are timed ON and OFF based on the distance from the selected setpoint, programmable, example: if the selected setpoint is 0.500 Cl ppm and the measured value is 0.400 Cl ppm, if the selected value of the PWM mode is 0.050 Cl ppm (based on the selected range) the proportional function starts after reaching 0.450 Cl ppm with Time/Pause pulses and decreasing the active time while reaching the setpoint.
Cycle Time: selected value of the PWM mode 0.050 Cl ppm with a 60 second cycle (programmable), example: setpoint is 0.500 Cl ppm active time 60 sec – pause time = 0 sec; at 0.450 Cl ppm active time = 30 sec – pause time = 30 sec… decreasing the active time while reaching the setpoint. The cycle time depends on many variables, such as: distance from the injection point of the system to be treated, how fast or slowly the setpoint needs to react, chemical concentration, etc.
MIN Active Time: programmable. Defines the minimum time in which the PWM function is active; prevails over the selected settings. The pulse modulation function is adjusted with 3 functions according to the following formula: Active Time in accordance with the selected formula = (measured value – setpoint) / (period width cycle time). If the result of the formula is < than that chosen with MIN Active Time, the latter prevails on the former, example: range 2 Cl ppm measured value 0.400 Cl ppm; setpoint 0.500 Cl ppm / Period Width 0.050 Cycle time 60 sec = active time 4 sec. If the user has selected Active time min 5 sec, this will be the minimum PWM time and not 4 sec.
ADVANTAGES: the proportional function is more accurate than the ON-OFF mode.
DISADVANTAGES: to select the most accurate settings and assure the best results, the operator should be an expert.

ANALOGUE OUTPUTS IN CURRENT 4 -20 mA1 / 4-20 mA2

The instrument features 2 outputs with signal in current in mA. The 4-20mA1 and 4-20mA2 signal follows the Chlorine settings selected previously. The mA output provides two operating modes to be selected according to the system’s operational requirements:

• mA DEVICE: this is a programmable function combined with the unit of measure of the Chlorine in real time which makes it therefore possible to remotely monitor devices such as data loggers, PLCs, recorders or other devices suited to processing remote signals in mA. 4 mA corresponds to the minimum Chlorine value (0 Cl ppm), 20 mA corresponds to the maximum measurable value (according to the selected chlorine range) which may be 2, 20, 200 or 10 Cl ppm, the connected device is activated accordingly.
• METERING ON SETPOINT: the mA outputs control metering pumps suited to processing an mA signal on input. 4 mA corresponds to the minimum Chlorine value (0 Cl ppm), therefore the connected metering pump operates at the minimum capacity. 20 mA corresponds to the maximum measured value (according to the selected chlorine range) which may be 2, 20 or 10 Cl ppm, the connected metering pump will work at the max programmed capacity (according to the settings of the device).
• ADVANTAGES: best possible results because the pulses are extremely accurate in relation to measured levels.
• DISADVANTAGES: the user requires a specific metering pump or other device suited to processing an input signal in mA.

OVERDOSE TIME

With the overdose time alarm one can select a period during which the setpoint must be reached. If the setpoint is not reached during this period of time, the instrument blocks output operations, including those in mA (metering pumps), the alarm is ON (displayed) and triggers a relay output.
ADVANTAGES: preventing excessive doses of chemicals.

MAXIMUM METERING TIME

The maximum metering time is an extra function that ensures that metering operations are completed within a certain time limit selected by the operator. The relays connected to the metering pumps activate accordingly. This function makes it possible to eliminate time limits, to meter continuously based on the selected setpoints or, if the operator wishes to change the settings, it lets them choose a given period (up to 999 minutes) within the selected hours.
ADVANTAGES: preventing excessive addition of chemical product not only according to the setpoint, but also cancelling any form of programming of the instrument’s setpoint.

START/STOP TIMES

The Timer in real time makes it possible to control through a timer the AUX outputs for each remote device, for the period selected in the program. The operator may also program the days of activity and the exact time of the unit’s operations through the Start/Stop programming.

AUX OUTPUT

The auxiliary output controls various functions connected to any type of remote On-Off device controlled by a timer in real time. Each output is able to control a device or appliance thanks to very accurate programming of minutes/hours/days/weeks.
ADVANTAGES: this function makes this instrument a very versatile control unit not only to measure chemical physical parameters but also for other functions connected to the system where it is installed.

START-UP DELAY

The start-up delay stops the output relays when the unit is switched on, thus allowing the sensor to polarise assuring correct measurements (programmable).

FLOW SENSOR function “Proximity Sensor”

Flow Sensor: if there is no water flow in the probe socket (and possibly in the system), the flow sensor (proximity sensor) disables all outputs ensuring no chemical substance is added (DISABLED by default).

TEMPERATURE

Manual / Automatic Temperature offset (the latter with a PT100 temperature sensor) 0-100°C, the conductivity measurements will be offset in temperature, always obtaining the exact value.

ETHERNET / RS485 communication control unit with external module

The eSelect M series is suitable for remote control thanks to an RS485 expansion board with Modbus protocol using the ETACLOUD software. The control unit via RS485/ETHERNET connection allows the operator to connect to the unit via a PC, a smartphone or a tablet, change and view the programming and settings using the ETACLOUD software. The unit sends an email message once the alarm level, overdose settings are reached, or when the maximum metering time of the metering pump has elapsed.

INITIAL DISPLAY

NOTE FOR THE PROGRAMMER: Read the manual before starting programming or always have it at hand to be sure you are making the correct selections.

IMPORTANT: if no keys are pressed for 60 seconds, the instrument will show the current measurement.
To go forward quickly, press and hold one of the ◄► buttons

The software version is shown when the instrument is on the lower part of the display.
The software is subject to revisions without notice.

The instrument is prepared for measuring and is then ready to operate.

At this stage some status messages might be displayed such as:
S1 S2 L1 DATE/TIME AUX OVERDOSE ALARM MAX DOSE FLOW BASIC MENU EXPERT MENU which might be active due to the current measurements, just go Forward with programming.

The INITIAL DISPLAY shows the chlorine Cl ppm measurements according to the range selected in the paragraph. SELECT THE CHLORINE RANGE”. If the instrument has already been programmed, the display shows the programs selected previously.

The CONTINUOUS MEASUREMENT DISPLAY shows the measurements of the parameter, the status of the functions and the alarm indications.

The MAIN DISPLAY shows the measurements of the parameter, the status of the functions and the alarm indications.

When the instrument is switched on for the first time , a list of functions of all keys is displayed. This screen is no longer displayed during subsequent start-up operations.

READ THE MESSAGE CAREFULLY, THEN PRESS [ OK ] TO START.
USE OF THE KEYS
OK: access to the menu, start/stop, selection and editing
± selects the step of the menu or increases / decreases the value
ESC: goes back to the previous menu or does not save the change
Press OK to start
To go forward quickly, press and hold one of the ◄► buttons

IN ENGLISH

Select the language of the PROGRAMMING MENU

To select the language of the programming menu.
After selecting the Language (ITALIAN, ENGLISH), the programming menu adapts accordingly.

Select the CHLORINE MEASUREMENT RANGE

The instrument of the eSelect M CL series offers the option of selecting 4 chlorine measurement ranges and related sensors:

• Ion-selective membrane sensors with measurement ranges 0-2 Cl ppm (preset); 0-20 Cl ppm; 0-20 Cl ppm (Total chlorine);
• Open type amperometric cell (model CLC) range 0-10 Cl ppm
  After making the selection, the measurement parameters displayed will change accordingly.

IMPORTANT: after selecting the CHLORINE SCALE , ENSURE the appropriate CHLORINE sensor is connected.
In case the operator should want to change the CHLORINE SCALE range also during operations, proceed as follows:

BASIC menu > [SETTINGS] > [EXPERT MENU] > [MENU SELECTION] > [SETPOINT1]

[ Chlorine Scale ] from EXPERT menu go into > [MENU SELECTION] > [SETPOINT1] > [ Chlorine Scale ] Press [ESC] to go back to [MENU SELECTION] or press [ESC] [ESC] to go back to [MEASUREMENT DISPLAY]

TEMPERATURE settings

One of the following functional modes can be selected:
Manual:
The value is set by the user (0-100°C ) in the configuration menu, it is the reference parameter for offsetting the pH value
Automatic:
The value measured by the PT100 probe is the reference parameter for offsetting the chlorine value

DATE AND TIME – Timer in real time

◄ ►◄  ► Some applications might require programming activation or deactivation of the device. This is why the electronic device is equipped with a clock and calendar.

PROGRAMMING MENU

The eSelect M instrument lets you choose between:
BASE programming: only the basic functions are available (for the user).
EXPERT programming: complete programming that includes functions for more accurate control and results (for the installer).
After selecting the type of programming, the Menus and sub-menus will change accordingly.
To help the operator choose the correct menu, the main differences between the two are set out below:

Setpoint 1-2 <Setpoint value – Metering – ON/OFF or Proportional mode – Alarm MIN/MAX (only on Setpoint1) > Calibration > Settings >

Setpoint 1-2 < Setpoint value – Metering – ON/OFF or Proportional mode – Hysteresis – Setpoint delay – Temp. correction – MIN/MAX Alarm (only on Setpoint1) – Overdose – Max Dosage – Start – up delay > 4-20mA1 > 4-20mA2 > Calibration > Start/Stop > Aux Output > Settings >

Press [OK/MENU] the display shows BASIC menu (default)

BASIC PROGRAMMING MENU

These are all the steps included in the MENU SELECTION menu configuration with BASIC programming:

◄ ► ◄ ► *Selecting the [ Chlorine Scale ], [SETPOINT1] and [CALIBRATION] will be followed by values in the selected Cl ppm range

◄ ► ◄ ► ◄ ►

Press [OK/MENU] to confirm the selection and to go on to the next sub-menu.
Press ESC to go back to the [MEASUREMENT DISPLAY]

SETPOINT 1 AND SETPOINT2 CL CHLORINE > BASIC MENU

SETPOINT1 CL

The chlorine instrument eSelect M CL is preset by default for a 0 to 2 ppm range. By selecting the required chlorine range, the values and displays change accordingly.
The setpoints will activate the output relays for the metering pumps or other devices.
The display shows the values according to the selected Chlorine Scale.

SETPOINT2 CL

Direct mode: the output is active when the measured value is lower than the one selected in the setpoint, the metering pump injects Chlorine.

Setpoint 2 is set for operations in Reverse mode: the output is active also the measured value is higher than the one selected in the setpoint, the metering pump injects a Chlorine reducing agent.

The unit has an ON-OFF mode which switches on or off (if the reverse mode is ON) The output relays of Constant / ON-OFF metering pumps or other ON-OFF equipment.

BY SELECTING “ON-OFF” THE NEXT STEP IS “MIN ALARM” (ONLY in SET POINT1)

Modular pulses, also known as PWM “pulse width modulation”, support a proportional mode on each ON-OFF setpoint, activating the corresponding pulses on the output relays based on the measured value and always relating to the previous selected settings.
The default activation point is 0.050 ppm (2 Cl ppm); 0.50 ppm (range 20 Cl ppm, 0-10ppm CLC Cell).

For more accurate settings of the “ Modular pulses ” PWM, select the “ Expert ” menu in the initial settings.

• GOING BACK TO THE SETPOINT PROGRAMMING STEPS FROM “ ON-OFF ” MODE OR FROM “ PROPORTIONAL ” MODE FUNCTION ONLY AVAILABLE WITH SETPOINT 1

The MIN and MAX Alarm function selects the alarm levels beyond which the alarm relay is triggered on.

ONLY WHEN USING METERING PUMPS
The priming function blocks the setpoint value to allow the metering pump to remain primed, the outputs are not active.

Press [ESC] to go back to [MENU SELECTION] or press [ESC] [ESC] to go back to the [MEASUREMENT DISPLAY]

CALIBRATION > BASIC MENU

◄ ► Press [OK/MENU] to confirm the selection and go to the next sub-menu.

The chlorine parameter has 3 ranges suitable for ion-selective membrane sensors (one of which for the Total chlorine) and a range for open type amperometric cells.

NOTE

During calibration, the – (minus) sign might be displayed, which disappears or is removed by correct settings! The value in the lower part of the display shows the sensor signal in mV thus indicating the sensor’s efficiency. It is advisable to perform constant checks and periodic recalibration of the sensor, via DPD1.
For the calibration of ion-selective membrane sensors always refer to the probe’s manual.
In BASIC MENU mode calibration is performed with one point only, the DPD one.

Select the value of the required sample solution and check with the DPD1 test kit for free chlorine, or with portable instrument, measure the chlorine concentration in ppm (residual or total) in water, wait for the measurement to stabilise, press and hold ▲▼ until showing the value obtained with the DPD method then confirm with [OK/MENU]

Press [ESC] to go back to [MENU SELECTION] or press [ESC] [ESC] to go back to [MEASUREMENT DISPLAY]

START/STOP TIMES > BASIC MENU

The Timer in real-time programs the days and exact time of instrument operations.

Program the date and time by selecting the backlit steps.

Press [ESC] to go back to [MENU SELECTION] or press [ESC] [ESC] to go back to the [MEASUREMENT DISPLAY]

SETTINGS > BASIC MENU

BASIC programming: simplified mode for end user or non-professional operators

EXPERT programming: complete programming that includes functions for more accurate control and results (for the installer).

After selecting the type of MENU, e.g. by selecting EXPERT, the display first shows BASIC but changes to EXPERT as soon as you start programming, and vice versa.

Program the date and time by selecting the backlit steps.

Adjusts display backlighting obtaining energy savings;

To select the language of the programming menu.
After selecting the Language, the programming menu adapts accordingly (Italian/English)

DATA RESET: resets default factory settings. ONLY to be used when the parameters do not match or if there are programming issues or when the operator wishes to restart from scratch. NOT to be overused as many resets may undermine the instrument’s efficiency.

◄ ► ◄  ►

By confirming YES , the display goes out for 1 second approximately, then goes back to the [MEASUREMENT DISPLAY]

MENU SELECTION > EXPERT PROGRAMMING MENU

These are all the steps included in the MENU SELECTION configuration with the EXPERT MENU programming menu:

◄ ► ◄ ► ◄ ►

◄ ► ◄ ► ◄ ►

◄ ► ◄ ► *Selecting the [ Chlorine Scale ], [SETPOINT1] and [CALIBRATION] will be followed by values in the selected Cl ppm range

Press [OK/MENU] to confirm the selection and to go on to the next sub-menu.
Press [ESC] to go back to the [MEASUREMENT DISPLAY]

SETPOINT 1 CL AND SETPOINT 2 CL CHLORINE > EXPERT MENU

SETPOINT1 CL

The instrument is preset by default for a 0 to 2 ppm range. By selecting the required chlorine range, the values and displays change accordingly.
The setpoints will activate the output relays for the metering pumps or other devices once the setpoint level is selected.

SETPOINT2 CL

Direct mode: the output is active when the measured value is lower than the one selected in the setpoint, the metering pump injects Chlorine.

Setpoint 2 is set for operations in Reverse mode: the output is active also the measured value is higher than the one selected in the setpoint, the metering pump injects a Chlorine reducing agent.

The unit has an ON-OFF mode which switches on or off (if the reverse mode is ON) The output relays of Constant / ON-OFF metering pumps or other ON-OFF equipment.

BY SELECTING “ON-OFF” THE NEXT STEP IS “MIN ALARM” (ONLY SET POINT1)

*Modular pulses, also known as PWM “pulse width modulation”, support a proportional mode on each ON-OFF setpoint, activating the corresponding pulses on the output relays based on the measured value and always relating to the previous selected settings.
The default activation point is 0.050 ppm (2 Cl ppm); 0.50 ppm (range 20 Cl ppm, 20 Cl ppm (Total), 0-10ppm CLC Cell) (see pg.11-12).

SELECTING “ON-OFF” THE NEXT PROGRAMMING STEO IS “HYSTERESIS”
SELECTING “PROPORTIONAL” REQUIRES PROGRAMMING THE NEXT STEPS

PWM PROPORTIONAL MODE WITH TIMED PULSES

Pulse width: pulses are timed ON and OFF based on the distance from the selected setpoint, programmable, example: with a selected chlorine range at 2 Cl ppm, if the selected setpoint is 0.500 Cl ppm and the measured value is 0.400 Cl ppm, the PWM mode starts after reaching 0.450 Cl ppm with Time/Pause pulses and decreasing the active time while reaching the setpoint
(see pg.11-12).

Cycle Time: the PWM mode has a 60 second cycle (programmable), example: setpoint is 0.500 Cl ppm, active time 60 sec – pause time = 0 sec; 0.475 Cl ppm active time = 30 sec – pause time = 30 sec… as a consequence the active time decreases while reaching the setpoint. The cycle time depends on many variables, such as: distance from the injection point of the system to be treated, how fast or slowly the setpoint must react, chemical concentration, etc.

MIN Active Time: programmable. Defines the minimum time for which PWM is active; prevails over the selected settings. The pulse modulation function is adjusted with 3 functions according to the following formula: Active Time in accordance with the selected formula = (measured value – setpoint) / (period width * cycle time). If the result of the formula is < of that selected with MIN Active Time, the latter prevails on the former.

BY SELECTING “ON-OFF ” THE NEXT PROGRAMMING STEPS ARE AS FOLLOWS ……

FUNCTION NOT AVAILABLE SIMULTANEOUSLY WITH PROPORTIONAL MODE

Hysteresis is useful during operations to adjust the setpoints in ON-OFF mode and is used to enable or disable the output relay when the selected hysteresis has been achieved. Hysteresis is useful when there are too many quick swings around the setpoint, that might damage the connected device. By increasing hysteresis it is possible to move away from the setpoint in accordance with the required value.

FUNCTION NOT AVAILABLE SIMULTANEOUSLY WITH PROPORTIONAL MODE

The Delay time blocks the output relays (max 999 sec. programmable) to ensure the outputs are active only when the measurements are stable, thus assuring the best results in terms of chemical balance.

• GOING BACK TO THE SETPOINT PROGRAMMING STEPS FROM THE “ON-OFF” MODE OR “PROPORTIONAL” MODE

FUNCTION ONLY VALID FOR SET POINT1 TO CHANGE THE PREVIOUSLY SELECTED CHLORINE RANGE

– Ion-selective membrane sensor range 0-2 Cl ppm ( default ); range 0-20 Cl ppm; range 0-20 Cl ppm (Total);
– Open type amperometric cell (CLC model) range 0-10 Cl ppm
Once the selection is made, the display and measurement resolutions change accordingly.

In the event of changing the range, ensure the appropriate sensor is used!

FUNCTION ONLY AVAILABLE WITH SETPOINT 1

The MIN and MAX Alarm function selects the alarm levels beyond which the alarm relay is triggered on.

With the overdose time alarm one can select a period during which the setpoint must be reached. If the setpoint is not reached during this period of time, the instrument blocks output operations, including those in mA (metering pumps), the alarm is displayed as ON and triggers a signalling instrument connected to the alarm relay.

Maximum Metering is an extra safety function that ensures metering is completed in the selected time. This function makes it possible to eliminate time limits (continuous metering according to the selected setpoints) or to select the minutes (up to 999) and the hours, for instance metering for 999 minutes in 24 hours.

The start-up delay stops the output relays when the unit is switched on, thus allowing the sensor to polarise assuring correct measurements (programmable). ONLY SETPOINT1 EXPERT MENU

The priming function does not take into account the setpoint value to allow
the metering pump to remain primed, the outputs are not active.

Press [ESC] to go back to [MENU SELECTION] or press [ESC] [ESC] to go back to the [MEASUREMENT DISPLAY]

ANALOGUE 4-20MA OUTPUTS FUNCTION SELECTION > EXPERT MENU

◄ ►◄  ►

Press [OK/MENU] to go into mA mode following the CHLORINE SCALE value Cl ppm previously selected. In mA mode the instrument lets you choose two operative functions:

– mA DEVICE: external devices suited to operating with mA signal such as data loggers or data recorders or other mA equipment
– SETPOINT DISPENSING: through the control of metering pumps suited to controlling an mA external digital signal.

4-20mA1 / 4-20mA2 OUTPUT CHLORINE > REMOTE DEVICES FUNCTION

The analogue 4-20mA1 / 4-20mA2 outputs of the instrument follow the options previously selected of the CHLORINE SCALE

Please note that the displayed value is automatically adjusted according to the Chlorine Scale range

The 4-20mA proportional analogue outputs are related to the measurements in real time in order to drive remote equipment such as data loggers, PLCs or graphic recorders or other equipment suited to processing a remote mA signal.

Select the value corresponding to 4 and 20 mA based on Setpoint 1.
Programming valid for mA1 and mA2

Press [ESC] to go back to [MENU SELECTION] or press [ESC] [ESC] to go back to the [MEASUREMENT DISPLAY]

4-20mA1 / 4-20mA2 OUTPUTS CHLORINE > METERING FUNCTION ON SETPOINT

The analogue 4-20mA1 / 4-20mA2 outputs of the eSelect M follow the options previously selected of the CHLORINE SCALE

Please note that the displayed value is automatically adjusted according to the Chlorine Scale range previously set up.

The 4-20mA proportional analogue outputs are related to the measurements in real time in order to drive remote equipment such as data loggers, PLCs or graphic recorders or other equipment suited to processing a remote mA signal

Direct mode: the output is active when the measured value is lower than the one selected in the setpoint.

Reverse mode: the output is active even if the measured value is higher than the one selected in the setpoint.

The window width sets the distance from the setting point where the 4-20mA mode starts: 4mA = 0 metering pump pulse, 20mA = max impulsive frequency of the metering pump. The window width depends on many variables: distance injection point, reaction time, chemical % ….

With the overdose time alarm one can select a period during which the setpoint must be reached. If the setpoint is not reached during this period of time, the instrument blocks output operations, including those in mA (metering pumps), the alarm is displayed as ON and triggers a signalling instrument connected to the alarm relay.

Maximum Metering is a safety function that ensures metering is completed in the selected time. The relays of the metering pumps open accordingly.
This function makes it possible to eliminate time limits (continuous metering according to the selected setpoints) or to select the minutes (up to 999) and the hours, for instance metering for 999 minutes in 24 hours.

Press [ESC] to go back to [MENU SELECTION] or press [ESC] [ESC] to go back to the [MEASUREMENT DISPLAY]

CALIBRATION > EXPERT MENU

◄ ►Press [OK/MENU] to confirm the selection and go to the next sub-menu

The chlorine parameter has 3 ranges suitable for ion-selective membrane sensors, one of which for the Total chlorine, and a range for open type amperometric cells.

NOTE

During calibration, the – (minus) sign might be displayed, which disappears or is removed by correct settings! The mV value in the lower part of the display shows the sensor signal in mV thus indicating sensor’s efficiency. It is advisable to perform constant checks and recalibration of the sensor, via DPD1 or DPD3.
For the calibration of ion-selective membrane sensors always refer to the probe’s manual.

The [ZERO] must be adjusted in realistic operative conditions with water having no Chlorine. Wait 5/10 minutes. “If is not possible to make the chemical ZERO (no chlorine in the water), then the calibration of the ZERO must not be modified, DO NOT many any short-circuit on the measurement”.

Press and hold ▲▼ until [ 0.00 ] is displayed then confirm [OK/MENU]

GO TO THE SECOND CALIBRATION POINT

Note: if the Total Chlorine range has been selected, DPD3 will be displayed.
With the DPD1 test kit for free chlorine or DPD3 for total chlorine, or with portable instrument, measure the chlorine concentration in ppm (residual or total) in water, wait for the measurement to stabilise, press and hold ▲▼ until showing the value obtained with the DPD method then confirm [OK/MENU]

Press [ESC] to go back to the [MENU SELECTION] Press [ESC] [ESC] to go back to the [MEASUREMENT DISPLAY]

START/STOP TIMES > EXPERT MENU

In the EXPERT MENU mode, the START/STOP TIMES menu does not change. Therefore, refer to the START/STOP TIMES menu – BASIC MENU, illustrated above.

AUX OUTPUT > EXPERT MENU

◄ ► The auxiliary output controls various functions connected to any type of remote On-Off device controlled by a timer in real time. The AUX output may control a device or appliance thanks to very accurate programming of minutes/hours/days/weeks.
ADVANTAGES: this function makes this instrument a very versatile control unit not only to measure chemical physical parameters but also for other functions connected to the system where it is installed.

Press [OK/MENU] to confirm the selection and to go on to the next sub-menu.

If the operator has selected ClC 0-10 Cl ppm , the AUX1 output is suited for two functions: controlling an external device or, by selecting Cleaning one may program a system for automatic cell cleaning, ask ETATRON or dealer for a CLC cleaning KIT.

Program the AUX mode.

AUX1 may be used to control an external Device or for Cleaning the open Chlorine Cell for maintenance purposes.

Press ESC to go back to MAIN MENU or press ESC ESC to go back to the CONTINUOUS MEASUREMENT display

In the highlighted steps, enter and select the desired parameters, confirm the selection with OK/MENU.

The settings of the program entail many steps, which may be selected to have absolute operating precision (up to 99 programs for each AUX output).

AUX 1| Program  01| Press ◄ ► select program number (up to 99)
Confirm by pressing OK , automatically goes to the next step
---|---|---
Active time|

(m:s)  01:00

| Selects the active time of the connected On/Off device
Press ◄ ► to select the minutes, confirm OK to move to the next digits
Press ◄ ► to select the seconds, confirm OK to move to the next step
Start time|

(h:m)  10:30

| Selects the start time of the connected On/Off device
Press ◄ ► to select the hours, confirm OK to move to the next digits
Press ◄ ► to select the minutes, confirm OK to move to the next step
Enabl. days|

Mon:  N … Y

| Selects the days during which the connected equipment is operational
Press ◄ ► to select the days of activity ◄ ► N no or Y yes
Confirm by pressing OK , automatically goes to the next step
Weeks|

1:S  2:N  3:N  4:N

| Selects the weeks of the month during which the connected equipment is operational
Press ◄ ► to select the weeks of activity ◄ ► N no or Y yes
Confirm by pressing OK , automatically goes to the next step

Press [ESC] to go back to [MENU SELECTION] or press [ESC] [ESC] to go back to the [MEASUREMENT DISPLAY]

SETTINGS > EXPERT MENU

BASIC programming: simplified mode for end user or non-professional operators

EXPERT programming: complete programming that includes functions for more accurate control and results.

After selecting, e.g. EXPERT, the display first shows BASIC but changes to EXPERT, and vice versa, as soon as you start programming.

Program the date and time by selecting the backlit steps.

Flow Sensor: if there is no water flow in the probe socket (and possibly in the system), the flow sensor (proximity sensor), ENABLED, disables all outputs ensuring no chemical substance is added (DISABLED by default).

Manual temperature offset 0-100°C.
Press ◄► to change the temperature.
By selecting AUTOMATIC offset the temperature measurements are performed via PT100 probe (not supplied).

Press ◄► to show the ambient temperature and calibrate the sensor.

Modbus Address: from 0 to 254
Modbus Baudrate: transmission speed
TCP Address: IP address

The above menus are ONLY displayed if the instrument of the eSelect M series is connected to the external RS485 / ETHERNET module (for the settings, refer to the CONNECTION manual).

Adjusts display backlighting obtaining energy savings;

To select the language of the programming menu.
After selecting the Language, the programming menu adapts accordingly.

DATA RESET: resets default factory settings. ONLY to be used when the parameters do not match or there are programming issues or when the operator wishes to restart from scratch. NOT to be overused as many resets may undermine the instrument’s efficiency.

◄ ► ◄ ►

By confirming YES , the display goes out for about 1 second, then goes back to the [MEASUREMENT DISPLAY]

INSTRUMENT TROUBLESHOOTING

WARNING: ignoring the safety information may endanger your life or cause severe injuries!
ATTENTION: in the presence of gas or in premises saturated with gas, ensure you disconnect the device’s power supply for metering the Chlorine gas; also ensure the power supply of other equipment making up the system is secured.
Before working on the unit, disconnect it from the mains

b. Check whether the mains match the power supply shown on the label.
Burnt smell| Check the board and replace it following authorisation by ETATRON D.S.
2. The measurement on the display remains steady
(there are no changes)| pH or RX levels are NOT stable| Check again using a portable instrument or portable kit, especially the pH for chlorine values.
The signal from the sensor does not change| Repeat sensor calibration and if the problem persists, change the electrode.
3. The measurement on the display changes all the time (measurement fluctuations)| Electrical disruption from the local mains| Check the local mains. Check the earthing system connections
Micro-electrical disturbances in the measured fluid| Check instrument calibration, if the instrument measures correctly eliminate the electrical disturbances and refer to point A
4. The sensor calibration procedure cannot be completed| Old or contaminated buffer solution kit| Change buffer solution and use a portable kit
Faulty sensor| Adhere to the recommendations below
IMPORTANT TESTS: in cases 2, 3, 4 above, always test operation of the unit with the following steps:
A. Take down the unit from the system and install it in another room or laboratory without connections to other devices, but directly to the local mains.
B. Recreate in a container with fresh water the chemical-physical conditions of the system in terms of pH.
C. Program the unit and calibrate the electrode

a. If the results show correct unit operation, this means the issues lie within the system.
b. If the problem persists, replace the sensor with a new one; if the problem continues, the unit is faulty, contact the Manufacturer or authorised Dealer.

5. The setpoint relay does not close the contact| Incorrect setpoint| Correct the setpoint
Incorrect setpoint mode| Change the setpoint operating mode, direct or reverse, on the functions menu

REMEMBER: unit with universal voltage 100-250 VAC (±10%) or 9-24VDC. If the real voltage is constantly at the limit (minimum or maximum), or when the peaks are far above the mentioned range, the unit input is electrically protected against voltage fluctuations; outside the range mentioned above, the instrument does not work and the electric circuit must be replaced.
It is recommended to use voltage protections, check the earthing system and, when other equipment is connected in parallel, use a transducer. Furthermore, ETATRON D.S. recommends installing a UPS (genset) to assure continuity, thus ensuring no data are lost. A system that is set up without following the proper electrical design rules, without an earthing system, with frequent ON/OFF operations, might directly undermine the duration of the electric circuit.

HEAD OFFICE – ITALY
Via dei Ranuncoli, 53 – 00134 ROMA – ITALY
Phone +39 06 93 49 891 – Fax +39 06 93 43 924
e-email: info@etatronds.com – web: www.etatronds.com

ITALY (BRANCH OFFICE)
ETATRON D.S.
Via Ghisalba, 13
20021 Ospiate di Bollate
(MI) ITALY
Phone +39 02 35 04 588
Fax +39 02 35 05 421

AMERICA
DILUTION SOLUTIONS Inc
2090 Sunnydale Blvd
Clearwater FL 33765
Phone: 727-451-1198
Fax: 727-451-1197

ASIA
ETATRON D.S. (Asia-Pacific)
PTE Ltd
Oxley Business Hub, #04-46
Singapore 408729
Phone +65 67 43 79 59
Fax +65 67 43 03 97

BRASIL
ETATRON DO BRASIL
Rua Vidal de Negreiros, 108
Bairro Canindé – CEP 03033-050
SÃO PAULO SP
BRASIL
Phone/Fax +55 11 3228 5774

ESPAÑA
ETATRON DOSIFICACION Y
MEDICION S.L.
Ihurrita Bidea, 13 Bajo 25
Polígono Industrial Oiartzun
20180 OIARTZUN
(Guipúzcoa) ESPAÑA
Phone: +34 902 099 321

FRANCE
ETATRON FRANCE
Batiment 4 – Hall 406 95520
Osny FRANCE
Phone: +33 (0)1 34 48 77 15
Fax: +33 (0)1 78 76 73 95

UNITED KINGDOM
ETATRON GB
Newlin Business Park
Exchange Road
Lincoln, LN6 3AB UK
Phone +44 (0) 1522 85 23 97

ROMANIA
ETATRON ROMANIA
Str. Avram Iancu, nr.34A
407280 Floresti, Cluj,
ROMANIA
Phone +40 264 57 11 88
Fax +40 364 80 82 97

RUSSIAN FEDERATION
DOSING SYSTEMS
3-rd Mytishenskaya, 16/2
129626 Moscow RUSSIA
Phone +7 495 787 1459
Fax +7 495 787 1459

UKRAINE
ETATRON – UKRAINE ltd.
Soborna Street, 446 Rivne,
33024 Rivne Region UKRAINE
Phone +380 36 26 10 681
Fax +380 36 26 22 033

COD. DMU 00218ML-A (04-2019)

References

• Etatron
• Etatron

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