Emec DIN DIGITAL CD User manual

1
Read carefully! ENGLISH Version
R1-11-05
This manual contains important safety informations
about installation and use of this equipment. Ignoring
this informations could result in injuries or damages.
It is strictly forbidden to use this equipment with
radioactive chemicals!
OPERATING MANUAL FOR
“DIN DIGITAL CD” CONTROLLER

Danger!
GENERAL SAFETY GUIDELINES
In emergencies the instrument should be switched off immediately! Disconnect the power cable
from the power supply!
When installing always observe local regulations!
Manufacturer is not liable for any unauthorized use or misuse of this product that may cause injury,
damage to persons and / or materials.
Caution! Instrument must be accessible at all times for both operating and servicing. Access must not be
obstructed in any way!
Feeder should be interlocked with a no-flow protection device to automatically shut-off the pumps
when there is no flow!
Pumps and accessories must be serviced and repaired by qualified and authorized personnel only!
Always discharge the liquid end before servicing the instrument!
Empty and rinse the liquid end before work on a pump which has been used with hazardous or
unknown chemicals!
Always read chemical safety datasheet!
Always wear protective clothing when handling hazardous or unknown chemicals!
Instrument must be operated / serviced by trained technicians only!
All connection operations must be performed while the instrument is not connected to main
supply!
Missed activation for Min/Max alarm and Maximum Dosing Alarm may cause hazardous overdosing!
NORME CE
EC RULES(STANDARD EC)
NORMAS DE LA CE
Direttiva Bassa Tensione
Low Voltage Directive
Directiva de baja tensión
Direttiva EMC Compatibilità Elettromagnetica
EMC electromagnetic compatibility directive
EMC directiva de compatibilidad electromagnética
2014/35/UE
2014/30/UE
⎬
⎬

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Index
Index
GENERAL DESCRIPTION ...................................................................................................... 4
CONTROL PANEL .................................................................................................................. 4
ELECTRICAL WIRINGS: ......................................................................................................... 5
VIEW ON MENU ..................................................................................................................... 6
SETTING SETPOINTS: 1)SETPN ........................................................................................... 6
Out mA .................................................................................................................................... 7
CALIBRATION: 2)CALIB ........................................................................................................ 8
DELAY: 3) Delay ..................................................................................................................... 9
RESERVED: 4) Reserv ........................................................................................................... 9
PASSWORD SETUP: 1) New Pw ........................................................................................ 10
MANUAL WORKING MODE: 3) Serv. ................................................................................... 11
ERROR MESSAGES ............................................................................................................. 11
Warning: proportional mode operates on 100 or 150 seconds basis

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GENERAL DESCRIPTION
“DIN Digital CD” measures and controls Conductivity in industrial process. It is possible to set two
ON/OFF setpoints and a current signal for connecting a chart recorder or a metering pump. It is
possible to set the current output on 0÷20 or 4÷20 mA. LCD backlight display facilitates reading in
high luminosity conditions. The instrument is cased into a plastic box for DIN mounting.
CONTROL PANEL
Into normal operating mode press “UP” or “DOWN” key for instrument’s details.
Use keyboard (up, down, left and right) to make a selection or change set values. Press the “RIGHT” key to go back
in previous menu or cancel entered data.
The “Enter” key confirms the selection.
Press “RIGHT” key for about 4 seconds to switch off the instrument (the display shows OFF). Repeat the sequence
to return to the normal operating mode.
To reset the instrument (restore default settings) unplug power supply and keeping pressed “UP” and “DOWN” keys, plug
in power supply. The instrument will show “Checksum Error- Press any key”. Press any key to continue.
DisplayDisplay
DisplayDisplay
Display
LCD backlight display
facilitates reading in
high luminosity
conditions. It provides
constant indications
regarding operating
conditions and
equipment status.
Introduction
A convenient keypad
allows easy and quick
access to the menu for
easy programming and
calibrating operations.
KK
KK
Keyboardeyboard
eyboardeyboard
eyboard
“RIGHT” (ON/OFF - ESC) key “ENTER” key
E
UP” key “DOWN” key
100 uS
1on 2--
SetPoint status. Ex:
“1ON” setpoint 1 is
active.
“2--” setpoint 2 is
not active.

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ELECTRICAL WIRINGS:
1 - 2: Power Supply (24VAC* or 115VAC* or 230VAC*). * See instrument's label
3-4: Setpoint 1 output - free contact.
5-6: Setpoint 2 output - free contact.
7-8: Conductivity probe (7 Red; 8 Black).
9-10: Temperature compensation probe. 9 (GND) ; 10 (NTC).
11-12: Current output (0÷20mA o 4÷20mA) proportional to read value. 11(-) ; 12 (+).
13-14-15-16: See the following paragraph.
Note:
Conductivity probes with built in temperature compensation (for example ECDCC/1) have 4 wires +
shield.
Connect red and black wires to conductivity blocks.
Connect white and green wires to temperarure blocks.
Connect shield to ground 9 (GND).
“SEPR” CONFIGURATION.
The instrument is set to work without a proximity sensor. If needed, proximity sensor turns the
instrument into stand-by mode if there isn’t flow. Instrument’s display shows “NO FLOW”.
Connect “SEPR” to blocks 13(blue), 15(black), 16(brown). Connect together block 14 with block 13.
To work without a “SEPR” and with the same functionality use blocks 15 and 16 as a free contact.
Connect together block 14 with block 13.
Using “SEPR” or the free contact, two instruments can be controlled. Connect block 14 and 15 from
master instrument to another instrument “Din Digital” (slave). Finally follows the previous described
connections for the master instrument.
POWER SUPPLY FUSE PROTECTED (0,5A)
Installation
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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VIEW ON MENU
Make connections and plug the instrument. Instrument’s version message on display confirms that
the instrument is on. The display shows also the probe reading status and if setpoints are active.
Press “E” for about 4 seconds to enter into setup menu.
Note: During setup the instrument is in “Stand-by” mode. If user doesn’t press any key for one minute
the instrument will return to normal working mode.
To enter into setup menu, a password is needed. If this the first time that user enters into this menu or
if the password is not changed, simply press “E”. Use “UP” and “DOWN” keys to scroll.
“MAIN” menu is configured as follows:
1)Setup: This menu is divided into 1)Setpn ; 2)Calib ; 3)Delay.
2)Param: This menu is divided into 1)New Pw
3)Serv.: service mode.
SETTING SETPOINTS: 1)SETPN
“Out 1” and “Out 2” are relay’s driven outputs. The instrument can be programmed to operate in “On/
Off” mode or “Proportional” mode.
“Proportional” mode can be selected in % between 10 and 100.
Select “SETUP” from “MAIN” menu. Select “SETPN” and press “E”. The display shows:
Setpoint
1) Out 1
Pressing “UP” or “DOWN” key the display will show in succession:
Setpoint
1) Out 1
Setpoint
2) Out 2
Setpoint
3) Out mA
Select the setpoint to set (Out 1 or Out 2) using “UP” and “DOWN” keys, press “E” to confirm. “Out
mA” allows to set the current output based on two Conductivity values. In the next example setpoint 1
(Out 1) has been set.
Installation

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SETUP
The instrument shows:
1a) ->OFF
1100uS
Pressing twice “RIGHT” key the display will show:
1b) ->ON
1000uS
“1a)” and “1b)” are working range values. Every range is set by a value that operates relay output.
Using default values, the setpoint 1 will drive a pump that will increase the conductivity value. The
pump will switch on for uS values minor than 1000uS and switch off when reaches 1100uS: this is the
ON/OFF working mode. The difference between the two uS (1100 e 1000) is called HYSTERESIS.
To avoid damaging the relay do not set Hysteresis under 100uS.
PROPORTIONAL mode. The output relay is modulated (ON/OFF) depending on uS values set in 1a)
and 1b). Ex.: Proportional mode between 1100uS (0%) and 1000uS (100%). In this way the relay will
be on for values between 0 and 1000uS, it will be on for values higher than 1100uS. For values
between 1000uS and 1100uS the relay will be on or off depending on calculated percentage.
The calculation is based on a 100 seconds time. If Conductivity reaches 1030uS the relay will be on
for 70 seconds and off for 30 seconds. To set the PROPORTIONAL functioning mode substitute
percentual value to “ON” and “OFF”.
It is not possible to enter mixed values (ex.: 100% for SP1 and ON for SP2). In this case it will not
possible save them.
In proportional mode the instrument doesn’t show % values for setpoints status but only if they
are on or off.
It is possible modify setpoint status (on,off, %) and setpoint values with RIGHT key on the function to
modify and using “UP” and “DOWN” key to change the value. Enter the value and save by pressing
“E” to save.
Repeat sequence for setpoint 2 (OUT2).
Press “E” key to exit from setpoint setting. The display will show “SetPoint Saved” and it return
to the previous menu.
Out mA
This function allows to program the current output for driving a metering pump or a chart recorder.It is
possible to program in 0÷20mA mode or 4÷20mA mode in the working range between 0 and 2000uS.
The current output and the working range may be modified. Ex.: it is possible to set 4mA at 0uS and
20mA at 1000uS. In this case, if you connect a metering pump it will dose at the maximum flow at 0uS.
The pump will reduce the flow when Conductivity decrease and it will stop at 1000uS. If you connect
a chart recorder, a graphic curve will be printed. Use “UP” and “DOWN” keys to change these settings.
Press “RIGHT” key to scroll through the options. Press “E” to confirm.

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CALIBRATION: 2)CALIB
Choose “CALIB” from “Setup”. Display shows:
Calib
1)Zero
Press “UP” key. Display shows:
Calib
2) Slope
Zero calibration.
When display shows “1) Zero” press “E” to enter into zero calbration procedure. Display shows:
R --.--uS
C 0.00uS
To calibrate probes (K1) as mod. ECDIC/1 remove it from probe holder and calibrate it to air. Wait
until “R” value is stable. ATTENTION: IT IS NOT NECESSARY THAT “R” VALUE WILL BE THE
SAME OF “C” VALUE. Press “E” to confirm. Display shows:
Calibr.
Success.
Slope calibration.
When display shows “2) Slope” press “E” to enter into slope calbration procedure. Display shows:
Temp Cal
25°C
This is the buffer solution or the plant temperature. It is not possible modify this value. Press “E” to
continue. The instrument will show:
Comp.
3%
This is the temperature compensation coefficient. Modify this value according with the table on the
buffer solution / chemical product bottle, using “UP” and “DOWN” keys. Press “E” to confirm. The
instrument will show:
R --.-- uS
C 84uS
If you are using a 84 uS (or a different one compatible with working range) buffer solution press “E”
otherwise enter the buffer solution value used by “UP” and “DOWN” keys and press “E”.
Connect the probe to the instrument. Insert the probe tip into the 84 uS buffer solution and wait until
R value (read value) is stablized and then press “E” to confirm the calibration.
ATTENTION: IT IS NOT NECESSARY THAT “R” VALUE WILL BE THE SAME OF “C” VALUE.
If the procedure is correct the instrument will show a confirmation message otherwise a numbered
error message will be displayed (see table on page 10). Is an error occurred, repeat the procedure.
Otherwise press “RIGHT” key to esc from procedure.
SETUP

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SETUP
DELAY: 3) Delay
t’s possible to set an activation delay for each output when the instrument reaches the setpoint
values. Default value is set to 0. Select “DELAY” from “SETUP” menu. The instrument will show:
OUT1
10 Sec.
Press “RIGHT” key. The instrument will show:
OUT2
5 Sec.
Delay time can be set from 0 (no delay) to 60 seconds. Press “E” to confirm. The display will show
the confirmation message “DELAYS SAVED”.

10
PARAM
PASSWORD SETUP: 1) New Pw
To avoid undesired access to the instrument a 4 number password may be set. Using “UP” or
“DOWN” keys, from “Param” menu choose “1) New Pw”, press “E” to confirm. The display shows:
NEW PW
-> 0 0 0 0
Use “UP” and “DOWN” keys to modify th first digit. Use “RIGHT” key to go on the next digit. Press
“E” to confirm. The instrument will show the new password for 2 seconds and then will return to the
main menu.

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SERV.
MANUAL WORKING MODE: 3) Serv.
This function allows to manual control the external relays contact (SP1 / SP2).
The display will show 1 or 2 to show the selected setpoint/output. The output status can be set “ON”
or “OFF” using “UP” key for SP1 and “DOWN” key for SP2. “ON” is the status of N.O contact closed
and N.C. contact open. “OFF” is the status of N.O. contact open and N.C. contact closed.
ERROR MESSAGES
If the display shows an error message, use the following table:
ERROR 1: Buffer solution error during calibration. Try again using a
different buffer solution.
ERROR 2: Buffer solution read error during calibration. Try again using a
different buffer solution.
ERROR 3: N/A
ERROR 4: Offset error. Verify sample and repeat procedure.

Disposal of end-of-life equipment by users
This symbol warns you not to dispose of the product with normal waste. Respect human
health and the environment by giving the discarded equipment to a designated collection
center for the recycling of electronic and electrical equipment. For more information visit the
online site.
When dismantling a pump please separate material types and send them according to local
recycling disposal requirements. We appreciate your efforts in supporting your local Recycle
Environmental Program. Working together we’ll form an active union to assure the world’s
invaluable resources are conserved.