Conex DIA-2Q Instrument amplifier and controller - GRUNDFOS ALLDOS INSTRUCTIONS

 
GRUNDFOS ALLDOS INSTRUCTIONS

Conex® DIA-2Q
Instrument amplifier and controller
   Installation and operating instructions
Declaration of Conformity
    We Grundfos Alldos declare under our sole responsibility that the product
    Conex® DIA-2Q, to which this declaration relates, is in conformity with the
    Council Directives on the approximation of the laws of the EC Member States
    relating to
    – Electromagnetic compatibility (89/336/EEC).
        Standards used:
        EN 61000-3-2: 1995 + A1 + A2: 1998,
        EN 61000-3-3: 1995,
        EN 61326: 1997 + A1: 1998 + A2: 2001 Class B,
        EN 61326: 1997 / A1: 1998 + A2: 2001.
    – Electrical equipment designed for use within certain voltage limits
        (73/23/EEC) [95].
        Standard used: EN 61010-1: 2002.

    Pfinztal, 15th April 2008

                 W. Schwald                           Ulrich Stemick
               Managing Director                    Technical Director

2
CONTENTS                                                       Warning
                                              Page             These complete installation and
1.    Symbols used in this document              3             operating instructions are also
2.    A few words in advance                     4             available on www.Grundfosalldos.com.
3.    Installation data                          4             Prior to installation, read these
                                                               installation and operating instructions.
4.    Installation sketch                        5
                                                               Installation and operation must comply
5.    Instrument settings                        6             with local regulations and accepted
6.    General information                        8             codes of good practice.
6.1   Warranty                                   8
7.    Applications                               8   1. Symbols used in this document
8.    Safety                                     8
8.1   Obligations of the owner/                                Warning
      operations manager                         8             If these safety instructions are not
8.2 Avoidance of danger                          8             observed, it may result in personal
9.    Identification                             9             injury!
9.1 Nameplate                                    9
9.2 Type key, Conex® DIA-2Q controllers         10             If these safety instructions are not
9.3 Type key, Conex® DIA-2Q preassembled             Caution   observed, it may result in malfunction
      systems                                   10             or damage to the equipment!
10. Technical data                              12             Notes or instructions that make the job
10.1 Design / enclosure class                   12    Note
                                                               easier and ensure safe operation.
10.2 General data                               12
10.3 Electronic data and functions              12
10.4 Measuring ranges                           14
10.5 Dimensions                                 14
11. Installation                                15
11.1 Transport and storage                      15
11.2 Unpacking                                  15
11.3 Installation requirements                  15
11.4 Installation in control panel              15
11.5 Installation of wall-mounted enclosure     16
12. Commissioning /
      electrical connections                    17
12.1 Terminals                                  18
12.2 Power supply connection                    20
12.3 Relay outputs                              20
12.4 Current output                             21
12.5 Connections of controller stop,
      sample-water sensor and
      temperature sensor                        21
12.6 Connection of measuring cells              22
13. Operation                                   24
13.1 Control and display elements               24
13.2 Display elements during initial
      commissioning                             24
13.3 Software overview                          26
13.4 Main menu                                  27
13.5 Setup                                      28
13.6 Selection, configuration and
      parameterisation of the controller        33
13.7 "Alarm" menu                               39
13.8 Checking the settings in the
      "service" menu                            41
13.9 Calibration                                43
13.10 Manual operation                          48
14. Fault finding                               51
15. Maintenance                                 52
16. Disposal                                    52

                                                                                                        3
2. A few words in advance                               3. Installation data
The Conex® DIA-2Q (Dosing Instrumentation                           Please fill in the data below after
Advanced, with 2 inputs, with flow measurement)                     commissioning. It will help you and
multipurpose measuring amplifier and controller you       Note      your Grundfos Alldos service partner
have just purchased uses the company’s leading-                     make subsequent adjustments to the
edge measuring technology.                                          installation.
The Conex® DIA-2Q is a multipurpose device
                                                        Owner:
designed to carry out high-precision measurements
and controls of the following:
• a value from parameter group 1:                       Grundfos Alldos customer number:
    – chlorine, chlorine dioxide, ozone, hydrogen
      peroxide or peracetic acid                        Order number:
• a value from parameter group 2:
    – pH value, redox potential or fluoride.            Product number:
The integrated controller, the high-resolution
graphics display and the multilingual plain-text user   Product serial number:
interface make complicated measuring and control
tasks in water chemistry much easier.
                                                        Put into service on:
Just a few button inputs lead you to your goal. The
potentiostat helps save even more time, being
automatically matched to the various input variables.   Location of product:
The safety standard of the dosing process is raised
by the automatic open-circuit monitoring of the         Used for:
current outputs.
Properties of the Conex® DIA-2Q measuring
amplifier and controller include the following:
• all control functions including PID and
    continuous-action controls
• proportional control
• setpoint control
• combined setpoint control with external
    disturbance variable feedforward
• manual or automatic temperature compensation
• logbook function: chronological recording of
    calibration values with date and time
• user coding function as a means of protection
    against access by unauthorised persons and for
    system administration
• error message function for indication of non-
    functioning sensors.

4
4. Installation sketch

                         5
5. Instrument settings

                                                            Parameter 1

                             Setup                                         Controller                         Alarm

                                                                     Proportional Xp                          Alarm
         Parameter                        Controller                                                  On:_
                                                                                               %      Off:_

                                      Proport. contrl.
     Chlorine:_                           Current input               Reset time TN
     Chlorine dioxide:_
                                                                                                        Alarm value 1
                                        Proport. variable                 (PI/PID control)               Switching point
     Ozone:_                         Off:_
     Peroxide:_                      0 - 20 mA:_
     Peracetic acid:_                4 - 20 mA:_                                               sec.
                                     Others:_ ________
                                                                     Deriv. action Tv                   Alarm value 1
       Temp. meas.                   Interpulse ctrl.:_                    (PID control)               Switching direction
     Yes:_                           Pulse freq. ctrl:_
                                                                                                      Upward violation:_
     No:_                            Cont. controller:_
                                                                                               sec.   Downward viol.:_

                                      Setpoint contrl.
                                     Combined contrl.                Int.pulse period                   Alarm value 2
       Temp. comp.                   Off:_                                (interpulse ctrl.)             Switching point
     Yes:_                           Limit:_
     No:_                            Interpulse ctrl.:_
                                                                                               sec.
                                     Pulse freq. ctrl:_
                                     Cont. controller:_
                                                                          Min. ON time                  Alarm value 2
    pH compensation                     Limit contact                     (interpulse ctrl.)           Switching direction
     Yes:_                           Downward viol.:_
                                                                                                      Upward violation:_
     No:_                            Upward violation:_
                                                                                               sec.   Downward viol.:_

                                                                      Max. frequency
    Measuring ranges                   Ctrl. direction                                                    Hysteresis
                                                                      (pulse freq. ctrl.)
                                     Downward control:_
                mg/l (ppm)           Upward control:_
                                                                                             n/min

                                      Type of control                       Setpoint
     Current output 1                                                                                    Alarm delay
                                     P:_                                   (limit contact)
                                     PI:_
                        mA                                                                                                 sec.
                                     PID:_

                                       Current input
                                     Disturbance variable             Constant load                   Dos. time monit.
                                     Off:_
      Measuring cell                                                                                  On:_
                                     0 - 20 mA:_
                                                                                                %     Off:_
                                     4 - 20 mA:_
                                     Others:_ ________

                                                                     Max. dosing flow                 Dos. time monit.
    Measuring cell type                                                                                 Max. dosing time

                                                                                                %
                                                                                                                           min

                                                                               Limit
      Cleaning motor                                                       (limit contact)
     Monitoring on:_
     Monitoring off:_

                                                                           Hysteresis
       Water sensor                                                        (limit monitor)
     On:_
     Off:_

6
Parameter 2

                          Setup                                          Controller                           Alarm

                                                                   Proportional Xp                            Alarm
    Parameter                          Controller                                                   On:_
                                                                                              %     Off:_

                                    Proport. contrl.
                                        Current input               Reset time TN
pH:_
                                                                                                       Alarm value 1
                                      Proport. variable                 (PI/PID control)                Switching point
Redox:_                           Off:_
Fluoride:_                        0 - 20 mA:_
                                  4 - 20 mA:_                                                sec.
                                  Others:_ _______
                                                                   Deriv. action TV                    Alarm value 1
  Temp. meas.                     Interpulse ctrl.:_                     (PID control)                Switching direction
Yes:_                             Pulse freq. ctrl:_
                                                                                                    Upward violation:_
No:_                              Cont. controller:_
                                                                                             sec.   Downward viol.:_

                                   Setpoint contrl.
                                  Combined contrl.                 Int.pulse period                    Alarm value 2
  Temp. comp.                     Off:_                                 (interpulse ctrl)               Switching point
Yes:_                             Limit:_
No:_                              Interpulse ctrl.:_
                                                                                             sec.
                                  Pulse freq. ctrl:_
                                  Cont. controller:_
                                                                    Min. ON time                       Alarm value 2
pH compensation                      Limit contact                      (interpulse ctrl)             Switching direction
Yes:_                             Downward viol.:_
                                                                                                    Upward violation:_
No:_                              Upward violation:_
                                                                                             sec.   Downward viol.:_

                                                                   Max. frequency
Measuring ranges                     Ctrl. direction                                                        Hysteresis
                                                                        (pulse freq. ctrl)
                                  Downward control:_
             mg/I (ppm)           Upward control:_
                                                                                            n/min

Current output 1                    Type of control                                                     Alarm delay
                                  P:_                                      Setpoint
                                  PI:_                                   (limit contact)
                   mA             PID:_                                                                                   sec.

                                     Current input
                                   Disturbance variable             Constant load                    Dos. time monit.
                                  Off:_
                                                                                                    On:_
                                  0 - 20 mA:_
                                                                                              %     Off:_
                                  4 - 20 mA:_
                                  Others:_ _______
                                                                                                     Dos. time monit.
                                                                   Max. dosing flow
                                                                                                       Max. dosing time

                                                                                              %
                                                                                                                          min

                                                                             Limit
                                                                         (limit contact)

                                                                         Hysteresis
                                                                         (limit contact)

                                                                                                                                 7
6. General information                                   8. Safety
These installation and operating instructions contain
all information important for users of the               8.1 Obligations of the owner/operations
Conex ® DIA-2Q:                                              manager
• technical data                                         The owner/operations manager must ensure that
• instructions on commissioning, use and                 persons working with the Conex® DIA-2Q
    maintenance                                          instrument amplifier and controller fulfil these
• safety information.                                    requirements:
Should you require further information or should you     • They are acquainted with the regulations
encounter problems that are not handled in sufficient        concerning working safety and accident
depth in this manual, please contact Grundfos                prevention.
Alldos. We shall be pleased to support you with our      • They have been trained in use of the device.
comprehensive know-how in the fields of measuring        • They have read and understood the warning
and control technology as well as water treatment.           information and handling symbols.
We always welcome suggestions on how to optimise         The owner/operations manager is also responsible
our installation and operating instructions to satisfy   for ensuring that this manual is kept in the immediate
our customers.                                           vicinity of the device and is always available for the
                                                         operating personnel.
6.1 Warranty
A warranty claim in accordance with our general          8.2 Avoidance of danger
terms of sale and delivery is only valid if these
requirements are complied with:                                     Warning
• The device has been used in accordance with the                   Installation and connection of the
   information in this manual.                                      device and the associated
                                                                    supplementary components must only
• The device has not been dismantled or handled
                                                                    be carried out by authorised personnel!
   incorrectly.
                                                                    The local safety regulations must be
                                                                    observed!
7. Applications
The Conex® DIA-2Q instrument amplifier and                          Warning
controller is suitable for measuring chlorine (Cl2),                Switch off the power supply before
chlorine dioxide (ClO2), ozone (O3), hydrogen                       connecting the power supply cable and
peroxide (H 2O2), peracetic acid, fluoride, pH or                   relay contacts!
redox potential and for controlling these variables
using appropriate actuators within the applications                 Do not dismantle the device!
described in this manual.                                           Maintenance and repair must only be
                                                                    carried out by authorised personnel!
          Warning
          Other applications are not approved                       The mounting location must be
          and not permitted. Grundfos Alldos                        selected so that the housing is not
          cannot be held liable for any damage            Caution   subjected to mechanical loading.
          resulting from incorrect use.                             Check that all settings are correct
                                                                    before starting up the device!

8
9. Identification
9.1 Nameplate

  1
           DIA-2Q, 1-D/HP/PA 2-P/R/F, Q-W-G
  2        352-2200-10001                       12
           S/N: 08/12345
  3
           Conex DIA-2Q
  4        230/240V 50/60Hz, 15 VA,
  5                                             10
           IP 65
 11
           96609140P1108120808565

                                                     TM04 0455 0708
  6

               7               8          9

  Fig. 1    Nameplate,     Conex®   DIA-2Q

  Pos.       Description

      1      Type designation
      2      Model
      3      Product name
      4      Voltage [V]
      5      Frequency [Hz]
      6      Product number
      7      Country of origin
      8      Year and week of production
      9      Marks of approval, CE mark, etc.
   10        Power consumption [VA]
   11        Enclosure class
   12        Serial number

                                                                      9
9.2 Type key, Conex® DIA-2Q controllers
Type key example: DIA-2Q, 1-D/HP/PA 2-P/R/F, Q-W-G

Example:                                                       DIA -2Q 1-D/HP/PA    2-P/R/F   Q    -W   -G

Measuring amplifier and controller
            Dosing Instrumentation Advanced with 2 inputs +
DIA-2Q
            flow measurement
Input parameter 1
D           Chlorine (Cl2), chlorine dioxide (ClO2) or ozone (O3)
HP          Hydrogen peroxide (H2O2)
PA          Peracetic acid (PAA)
Input parameter 2
P           pH
R           Redox (ORP)
F           Fluoride (F–)
Variant
Q           Flow compensation
Mounting
W           Wall-mounted
P           Panel-mounted
Voltage
G           1 x 230 V, 50/60 Hz
H           1 x 120 V, 50/60 Hz
I           24 VDC

9.3 Type key, Conex® DIA-2Q preassembled systems
Type key example: DIA-2Q-A, D2-X-AU-PCX-QS-T, W-G

Example:                                            DIA -2Q     -A   D2   -X   -AU -PCX -QS   -T   W    -G

Units for measurement and control
            Dosing Instrumentation Advanced, with 2 inputs,
DIA-2Q
            with flow measurement
Assembly
A           Preassembled
Cell type
D1          Pressure-proof, with cleaning motor
D2          Pressure-proof, with hydro-mechanical cleaning
D3          Pressureless, with hydro-mechanical cleaning
D4          For total chlorine measurement
D5          For free chlorine measurement with buffer dosing
P/R         pH or redox (ORP) only
P           With pressure retention valve
X           Without pressure retention valve
                                                                                          (to be continued)

10
Example:                                            DIA -2Q   -A   D2   -X   -AU -PCX -QS   -T   W   -G

Disinfection electrodes
AU         Gold
PT         Platinum
X          No disinfection measuring
Other electrodes
PCB        pH, ceramic diaphragm, incl. buffer solution
PTB        pH, PTFE diaphragm, incl. buffer solution
PKB        pH, KCl filling, incl. buffer solution
PGB        pH, gel filling incl. buffer solution
PCX        pH, ceramic diaphragm, excl. buffer solution
PTX        pH, PTFE diaphragm, excl. buffer solution
PKX        pH, KCL filling, excl. buffer solution
PGX        pH, gel filling, excl. buffer solution
RCB        Redox (ORP), ceramic diaphragm, incl. buffer solution
RTB        Redox (ORP), PTFE diaphragm, incl. buffer solution
RCX        Redox (ORP), ceramic diaphragm, excl. buffer solution
RTX        Redox (ORP), PTFE diaphragm, excl. buffer solution
F          Fluoride
PA         Peracetic acid
HP         Hydrogen peroxide
X          No electrode
Flow sensor
QS         Flow sensor integrated
X          No flow sensor
Temperature sensor
T          With Pt100
X          No temperature sensor
Mounting of controller
W          Wall-mounted
P          Panel-mounted
Voltage
G          1 x 230 V, 50/60 Hz
H          1 x 120 V, 50/60 Hz
I          24 VDC

                                                                                                      11
10. Technical data                                  10.3 Electronic data and functions
                                                    10.3.1 Electronics
10.1 Design / enclosure class
                                                    Electronics            16-bit microprocessor
Wall-mounted
enclosure                                                                  High-resolution graphics LCD
                                                    Display
(distance from        IP65                                                 with background light
sensors up to three                                                        1 alarm relay, 2 controller
metres)                                             Potential-free relay
                                                                           relays (250 V/6 A, maximum
                                                    outputs
                      IP54 (front) /                                       550 VA)
                      IP65 (sensor interface)                              Controller stop; proportional
Control panel
                      (distance from sensor         Signal inputs          value, disturbance variable 0/
enclosure
                      interface up to 100 metres,                          4 to 20 mA; water sensor
including separate
                      distance from sensor
potentiostat                                                               4 analog outputs 0/4 to
                      interface to sensors up to
                      three metres)                 Signal outputs         20 mA, freely adjustable,
                                                                           maximum load 500 Ω
10.2 General data                                                          •   Parameter group 1:
                                                                               chlorine, chlorine dioxide,
Input power           Approximately 15 VA                                      ozone, peroxide, peracetic
Permissible                                                                    acid
ambient               0 °C to +50 °C                                       •   Parameter group 2: pH,
temperature                                                                    redox or fluoride
Permissible                                                                •   For temperature or
                                                    Freely adjustable          continuous control
storage               –20 °C to +65 °C
                                                    analog outputs for         (0/4 to 20 mA) of the
temperature
                                                    measured values            parameters from group 2
Maximum relative                                                               (pH, redox or fluoride)
                      90 % (non-condensing)
humidity                                                                   •   For continuous control
Weight                1.5 kg                                                   (0/4 to 20 mA) of the
                                                                               parameters from group 1
                      Plastic (control panel                                   (chlorine, chlorine dioxide,
Enclosure             enclosure: noryl, wall-                                  ozone, peroxide, peracetic
                      mounted enclosure: ABS)                                  acid)
                      •   230/240 V (50/60 Hz)
                          (standard model)          10.3.2 Functions of the instrument amplifier
Power supply
versions              •   115/120 V (50/60 Hz)
                                                                           Measured-value display:
                      •   24 V DC                                          measured value with its unit,
                                                    Display mode
                                                                           temperature display:
                                                                           in °C or °F
                                                    Temperature            Manual or automatic with
                                                    compensation           Pt100 (–5 °C to +120 °C)
                                                                           Manual calibration, or with
                                                    Calibration            automatic recognition of
                                                                           buffer solution

12
10.3.3 Proportional controller functions

                     0 to 20 mA / 4 to 20 mA or        Basic load           0 to 50 % of dosing rate
Proportional value
                     other value (freely adjustable    Maximum dosing       Value (basic load + 1) to
input
                     between 0 mA and 20 mA)           rate                 100 % of dosing rate
                     Proportional or inversely                              Adjustable to upward or
Controller output                                      Control direction
                     proportional                                           downward control
                     Interpulse output, pulse          Controller stop      Adjustable to NC or NO
Controller output    frequency output, continuous
                     controller output                 10.3.5 Combined controller functions
                     1 to 100 seconds (only with
Interpulse period                                      Minimum ON time      0.1 to 10.0 seconds (only with
                     interpulse controller)
                                                       Tmin                 interpulse controller)
Minimum ON time      0.1 to 10.0 seconds (only with
                                                                            1 to 180 pulses per minute
Tmin                 interpulse controller)            Maximum
                                                                            (only with pulse frequency
                                                       frequency
                     1 to 180 pulses per minute                             controller)
Maximum
                     (only with pulse frequency
frequency                                              Basic load           0 to 50 %
                     controller)
                                                       Maximum dosing       Value (basic load + 1) to
Basic load           0 to 100 % of dosing rate
                                                       rate                 100 % of dosing rate
                     0 to 100 % of dosing rate
Maximum dosing                                                              Adjustable to upward or
                     (value for maximum dosing         Control direction
rate                                                                        downward control
                     rate < basic load is possible!)
                                                       Controller stop      Adjustable to NC or NO
                     0.1 to 10 (weighting of
Dosing factor D.F.
                     proportional value)                                    0 to 20 mA / 4 to 20 mA or
                                                       Disturbance
                                                                            other (freely adjustable
Controller stop      Adjustable to NC or NO            variable input
                                                                            between 0 and 20 mA)
10.3.4 Setpoint controller functions                                        0.1 to 10.0 (weighting of
                                                       Dosing factor D.F.
                                                                            disturbance variable)
                     Limit monitor, interpulse
                     controller (P, PI, PID), pulse
Controller output    frequency controller (P, PI,
                     PID), continuous controller
                     (P, PI, PID)
                     0 to 100 % of measuring
                     range, adjustable in the unit
Limit
                     of the measured value (only
                     with limit monitor)
                     0 to 50 % of full-scale value,
                     adjustable in the unit of the
Hysteresis
                     measured value (only with
                     limit monitor)
                     0 to 100 % of measuring
Setpoint input       range, adjustable in the unit
                     of the measured value
Proportional
                     0.1 to 3000.0 %
band Xp
                     1 to 3000 seconds, resolution
Reset time Tn        1 second (only with PI, PID
                     controllers)
                     0 to 1000 seconds, resolution
Derivative action
                     1 second (only with PID
time Tv
                     controller)
                     1 to 100 seconds (only with
Interpulse period
                     interpulse controller)
Minimum ON time      0.1 to 10.0 seconds (only with
Tmin                 interpulse controller)
                     1 to 180 pulses per minute
Maximum
                     (only with pulse frequency
frequency
                     controller)

                                                                                                         13
10.4 Measuring ranges

                                                               Peracetic
        CI2           CIO2          O3            H2O2                           pH        Redox (ORP)    Fluoride
                                                                 acid

        mg/l          mg/l         mg/l            mg/l          mg/l            pH            mV               mg/l
 0.00 - 0.50       0.00 - 0.50 0.00 - 0.50       0-100          0-100       0.00 - 14.00 –1500 to +1500   0.00 - 2.00
 0.00 - 1.00       0.00 - 1.00 0.00 - 1.00       0-500          0-500       2.00 - 12.00     0-1000       0.00 - 5.00
 0.00 - 2.00       0.00 - 2.00 0.00 - 2.00       0-1000         0-1000      5.00 - 9.00
 0.00 - 5.00       0.00 - 5.00 0.00 - 5.00       0-2000         0-2000
0.00 - 10.00       0.00 - 10.0
0.00 - 20.00

               The measuring ranges are also freely adjustable (within the above-mentioned range limits).
     Note      In the case of chlorine and chlorine dioxide, the free adjustment of the measuring range can
               be extended up to a maximum of 50.0 mg/l.

10.5 Dimensions

                         84        10                                            180
                                                27
        125

                                                                                                          110
184.5

                                                145
        59.5

                                                                                                                       TM03 6687 4506
                                        Ø 4.5
                              59                                                 198
                                                                                 212

     Fig. 2    Wall-mounted enclosure     Conex®      DIA-2Q

                                                                           158                18
90
96

                                                                                                    90

                                                                                                                       TM03 6688 4506

                        90                                                 166
                        96
     Fig. 3    Control panel enclosure Conex® DIA-2Q

14
11. Installation                                       11.4 Installation in control panel

11.1 Transport and storage                                                             > 20
•    Transport the device carefully, do not drop!
•    Store at dry and cool location.
                                                                         92+0.8
11.2 Unpacking
•    Check the device for damage.                                        92+0.8
     Install as soon as possible after unpacking.
•    Do not install or connect damaged devices!         > 20
              Retain the packing material or dispose
     Note

                                                                                                        TM03 6689 4506
              of it according to local regulations.

11.3 Installation requirements
•    Dry room
•    Room temperature: 0 °C to 50 °C
•    Vibration-free location.                            Fig. 4   Control panel enclosure Conex® DIA-2Q

              If you do not observe the installation
              requirements, the device may be
    Caution
              damaged!
              The measurements may not be correct!

                                                                                                        TM03 6690 4506
                                                         Fig. 5   Sensor interface

                                                       1. Make an opening of 92 + 0.8 mm x 92 + 0.8 mm in
                                                          the control panel.
                                                       2. Slip on the supplied gasket.
                                                       3. Insert the Conex® DIA-2Q into the opening from
                                                          the front.

                                                                  Do not damage the gasket!
                                                        Caution
                                                                  The gasket must be fitted exactly!
                                                       1. Hook the clamps into the tightening cones on the
                                                          sides at the top and bottom.
                                                       2. Secure the device from the rear using a
                                                          screwdriver.
                                                       3. Install a separate sensor interface near the
                                                          sensors (maximum distance of three metres).

                                                                                                        15
11.5 Installation of wall-mounted enclosure

                                                           27
              Warning
              Switch off the power supply before
              installing!
              Enclosure class IP65 is only

                                                           145
              guaranteed if the terminal cover is
              correctly sealed, if the front panel of
              the terminal enclosure is closed and

                                                                                                               TM03 6691 4506
              the appropriate cable glands or dummy
              caps fitted.

              Do not damage the terminal cover
Caution       gasket! The terminal cover gasket must        10.5                     198
              fit exactly!
                                                             Fig. 6   Wall-mounted enclosure Conex® DIA-2Q

                                                          1. Drill three holes (∅8 mm) as shown in the
                                                             diagram, and insert the supplied dowels.
                                                          2. Screw the screw (A) into the top centre dowel
                                                             until it projects by approximately 1 cm. See fig. 7.
                                                          3. Loosen the fastening screws of the front panel,
                                                             and remove the front panel.
                                                          4. Hang the instrument onto the screw (A).
                                                          5. Tighten the instrument with the two screws (B).
                                                          6. Mount the front panel of the enclosure.

                                                  A

                    B

                                                      B                                                        TM03 6692 4506

     Fig. 7   Mounting drawing

16
12. Commissioning / electrical connections
           Warning
           Switch off the power supply before
           installing!
           Enclosure class IP65 is only
           guaranteed with the front panel of the
           terminals enclosure closed and with
           appropriate cable glands or dummy
           caps.

           Warning
           Switch off the power supply before
           connecting the power supply cable and
           the relay contacts! For safety reasons,
           the protective conductor must be
           connected correctly!
           Observe the local safety regulations!
           Protect the cable connections and
           plugs against corrosion and humidity.

           Before connecting the power supply
           cable, check that the supply voltage
           specified on the nameplate
           corresponds to the local conditions!
           An incorrect supply voltage may
           destroy the device!
           To guarantee electromagnetic
 Caution   compatibility (EMC), the input and
           current output cables must be
           screened.
           Connect the screening to the screen
           ground on one side.
           Refer to the wiring diagram! Route the
           input, current output and power supply
           cables in separate cable channels.

           Enclosure class IP65 is only
           guaranteed if the terminal cover is
           correctly sealed! Do not damage the
 Caution   gasket on the terminal cover!
           The gasket on the terminal cover must
           be positioned precisely!
           Do not damage the gasket!

  Note     Unused terminals must remain open.

1. Remove the terminal cover on the front of the
   device.
2. Use the appropriate cable feedthroughs and
   tighten the screws carefully.
3. Connect the cables used to the terminals
   according to the Conex® DIA-2Q terminal
   assignment.
4. Close the terminal cover again with correctly
   positioned gasket.

                                                     17
18
                                                                                                    15 (white)
                                                                                                    16 (brown)

     Fig. 8
                                                                                                                                                                                                                                                      12.1 Terminals

                                            +       -             L N PE

                                                1       3   5      1    3    5          7 9          11 13           15 17 19 21 23 25 27 29 31 33 35                37 38 39 40 41 42

                                                    2 4     6          2 4    6              8 10      12 14           16 18 20 22 24 26 28 30 32 34 36                Cells / electrodes

                                                                                                             N.O15 (wh)                                                          37 =       39 = B/R
                                                +       -                                                    .
                                                                    L N PE                                      16 (br)                                                          38 = M     40 = G/C
                                                                                                                                                                      33/35
                                                                                         1     2          N.C. Cells                   23 - 30                      External     41/42 = +/– mV
                                                                                                                         17 - 22                           32,34,36
                                                                                      Relays        Alarm       PAA     Sensors     Outputs 1         4             input                   pH
                                                                                                                                                                                              –
                                                                  115/120                                       H 2 O2                      mA                                              F

     Terminals of wall-mounted enclosure
                                             24
                                             24 V/DC
                                                V/DC               115/120VV                                                                                            mA
                                                                                                                                                                                                       12.1.1 Wall-mounted enclosure Conex ® DIA-2Q

                                                                  230/240
                                                                   230/240 VV
                                                                                                                                                                               +–         External
                                                                                                                                                                        mA                input

                                                                                                                                         15 17 19 21 23 25 27 29 31 33 35
                                                                15 17 19 21 23 25 27 29 31 33 35
                                                                                                                                            16 18 20 22 24 26 28 30 32 34 36
                                                                 16 18 20 22 24 26 28 30 32 34 36
                                                                                                                     Outputs        1    4
                                                                                             Sensors
                                                                                                                       Cl2,ClO 2 , O3,           mA
                                                                                     21/22 = Pt 100                    H2O2, PAA         P1           1 +–
                                                                                  19 = + H2O, 20 = – H2O (water)                            –   P2    mA
                                                                                                                             pH, mV, F                     2 +–
                                                                             17/18 = Controller stop                                                       mA
                                                                                                                                   T / P2                       3 +–
                                                                                                                                                           mA
                                                                                                                                         P1                      4     +–

                                           TM03 6693 4506
1/1   (brown),
                                                                                                       1/1 (br), 1/21/2 (white)
                                                                                                                     (wh)
                                               Outputs
                                                                                      mA         Cells:      PAA                      2 /1, 2/2 = Controller stop

     Fig. 9
                                                                   Cl2 , ClO2 ,                              H2O2               2/3 (+), 2/4 (–) = H2O (water)
                                                1     4            O3 , H2O2 ,    1
                                                                   PAA                                         1/1            2/1       5/1             6/1
                                               5/1                                                             1/2            2/2       5/2             6/2
                                                                                                                                                                        1
                                                                                                               1/3            2/3       5/3             6/3
                                               5/2                                                                                                                     Relays
                                                                  pH, mV, F –     2                            1/4            2/4       5/4             6/4
                                                                                                                                                                        2
                                               5/3                                                             1/5                      5/5       5/1 - 5/5
                                                                                                               1/6            3/1
                                               5/4                         T      3                                           3/2                       7/1             N.O.
                                                                                                               1/7
                                               5/5                                                             1/8            3/3                       7/2             Alarm
                                                                                                               1/9            3/4                       7/3
                                                                                                                                                                        N.C.
                                             5/1 - 5/5

     Terminals of control panel enclosure
                                                                                  4                            1/10
                                                                                                                                                                                                     12.1.2 Control panel enclosure Conex® DIA-2Q

                                                                                                                              4/1                       8/1         PE              8/1
                                                                                                               1/11
                                                                                                                              4/2                       8/2         N               8/2       -
                                                                                                               1/12
                                                                                                                              4/3                       8/3          L              8/3       +
                                                                                                               1/13
                                                             External input                                                                                                               (24
                                                                                                               1/14           4/4    Conex DIA-2Q                 115/120
                                                                                                                                                                   115/120 VV              24V/DC
                                                                                                                                                                                              V/DC
                                                                                      mA         –+                                                               230/240
                                                                                                                                                                   230/240 VV

                                                                                                                                                              Connection to
                                                             Sensor interface              1/11 -1/14                  4/1 - 4/4      3/1 - 3/4               Conex® DIA-2Q
                                                                                           Pt 100                     Cells           Electrodes
                                                                                                                      Cl 2, ClO 2,    pH, mV, F –                A     1/1
                                                                                                                                                                       1/1(brown)
                                                                                                                                                                           (br)
                                                                                             DIP                      O3, PAA,                                         1/2
                                                                                                                                                                 B     1/2(white)
                                                                                                                                                                           (wh)
                                                                                                                      H2O2                                                  PAA
                                                                                           off            on                                                   Cells
                                                                                                                                      Jumper                                H2O2
                                                             Cells / electrodes
                                                                                                                                                                  A      2 /3 (+)
                                                                          M B/R G/C        Pt 100
                                                                                                          1/11 1/13 4/1 4/3 3/1 3/3           A                   B      2 /4 (-)
                                                              +     –                                                                                              H 2O (water)
                                                                                                            1/12 1/14 4/2 4/4 3/2 3/4             B
                                                             pH, mV, F –

                                            TM03 6694 4506

19
Legend of terminals                                      12.2 Power supply connection
                                                         1. Control panel enclosure: Plug the plug strip into
Pos.            Description                                 the corresponding terminal strip at the rear side of
                                                            the device. Ensure correct orientation.
Relays          Relay 1 + 2
                                                         2. Connect the protective earth conductor (PE) to
                Alarm relay                                 terminal 5 (wall-mounted enclosure) or terminal 8/
Alarm              – N.O.: normally open                    1 (control panel enclosure).
                   – N.C.: normally closed               3. Connect the neutral conductor (N) (or the –
Pt100           Temperature sensor                          conductor with 24 V version) to terminal 3 (wall-
                                                            mounted enclosure) or terminal 8/2 (control panel
H2O             Water sensor                                enclosure).
                Controller stop                          4. Connect phase (L1) (or the + conductor with 24 V
Stop
                (NO or NC selectable)                       version) to terminal 1 (wall-mounted enclosure) or
                                                            8/3 (control panel enclosure).
Outputs         Current outputs [mA]
                                                         Switch the device on and off by switching the power
                Cl2 (chlorine), ClO2 (chlorine           supply on and off accordingly. The device itself is not
                dioxide), O3 (ozone), H2O2               equipped with a separate on/off switch.
1
                (hydrogen peroxide) or PAA
                (peracetic acid)                         12.3 Relay outputs
2               pH, mV (redox), F– (fluoride)
                                                                       The connection of the relay outputs
                T/P2: temperature / continuous                         depends on the application and the
3
                controller parameter 2                                 final control elements used. Therefore
                                                              Note
                P1: output of continuous controller                    the connections described below
4                                                                      should only be considered as
                parameter 1
                                                                       guidelines.
Inputs          External inputs [mA]
                                                         With inductive loads (also relays and contactors),
                Measuring cells, electrodes and          interference suppression is necessary. If this is not
Electrodes
                single-rod measuring chains              possible, protect the relay contacts using a
M               Measuring electrode                      suppressor circuit as described below.
                                                         • With AC voltage:
B/R             Reference electrode
G/C             Counter electrode                            Current up to    Capacitor C        Resistor R
Earth
                                                             60 mA            10 nF, 275 V       390 Ω, 2 W
mV              Redox electrode
                                                             70 mA            47 nF, 275 V       22 Ω, 2 W
F–              Fluoride electrode
                                                             150 mA           100 nF, 275 V      47 Ω, 2 W
screen
                                                             1.0 A            220 nF, 275 V      47 Ω, 2 W
Control panel enclosure Conex® DIA-2Q
                                                         •     With DC voltage: Connect the free-wheeling
• Conex® DIA-2Q: for installation in the control               diode in parallel to relay or contactor.
    panel.
• Sensor interface: for installation near the sensors.       Caution
                                                                       Provide the relay outputs with a
Use the following cable to connect the sensor                          corresponding backup fuse!
interface to the Conex® DIA-2Q: shielded cable, 4 x
0.5 mm2.                                                     DC                      AC      +
                                                                                                              TM03 7209 4506

                                                                              R

                                                                              C

                                                                                             -

                                                              Fig. 10 Suppressor circuit, DC/AC

20
12.4 Current output                                     Output 4: continuous control parameter 1
                                                        This current output shows the calculated actuating
           Make sure that the polarity of the           variable signal as an analog current signal.
 Caution   current output is correct!                   Use of actuating variable signal:
           Maximum load: 500 Ω.                         • as input signal for a continuous final control
The current output can be set to one of the two            element.
standard ranges "0-20 mA" or "4-20 mA", or it can be    1. Connect the + conductor to terminal 29 (wall-
freely adjusted.                                           mounted enclosure) or terminal 1/8 (control panel
• Connect the screen to earth (PE) at one end.             enclosure).
Output 1: chlorine, chlorine dioxide, ozone,            2. Connect the – conductor to terminal 30 (wall-
hydrogen peroxide or peracetic acid                        mounted enclosure) or terminal 1/7 (control panel
(parameter 1)                                              enclosure).
This current output shows the displayed measured        12.5 Connections of controller stop,
value as an analog current signal.
                                                             sample-water sensor and temperature
Use of current signal for measured values:
                                                             sensor
• as input signal for another indicator
• as input signal for an external controller.           Connecting the controller stop
1. Connect the + conductor to terminal 23 (wall-        1. Connect the + conductor to terminal 17 (wall-
   mounted enclosure) or terminal 1/3 (control panel       mounted enclosure) or terminal 2/1 (control panel
   enclosure).                                             enclosure).
2. Connect the – conductor to terminal 24 (wall-        2. Connect the – conductor to terminal 18 (wall-
   mounted enclosure) or terminal 1/4 (control panel       mounted enclosure) or terminal 2/2 (control panel
   enclosure).                                             enclosure).

Output 2: pH, redox or fluoride (parameter 2)           Connecting the sample-water sensor
This current output shows the displayed measured        Cable colours and marking: See connections of
value as an analog current signal.                      measuring-cell types AQC-D1/AQC-D2/AQC-D3.
Use of current signal for measured values:              1. Connect the + conductor to terminal 19 (wall-
                                                           mounted enclosure) or terminal 2/3 (control panel
• as input signal for another indicator
                                                           enclosure).
• as input signal for an external controller.
                                                        2. Connect the – conductor to terminal 20 (wall-
1. Connect the + conductor to terminal 25 (wall-           mounted enclosure) or terminal 2/4 (control panel
   mounted enclosure) or terminal 1/5 (control panel       enclosure).
   enclosure).
2. Connect the – conductor to terminal 26 (wall-                  When using measuring cell AQC-D2,
   mounted enclosure) or terminal 1/4 (control panel      Note    the water sensor must always be
   enclosure).                                                    connected and activated!
Output 3: continuous controller parameter 2 (or         Connecting the Pt100 temperature sensor
temperature)                                            1. Connect the + conductor to terminal 21 (wall-
Shows the calculated actuating variable signal of the      mounted enclosure) or terminal 1/11 (control
controller as an analog current signal.                    panel enclosure).
Use of actuating variable signal:                       2. Connect the – conductor to terminal 22 (wall-
• as input signal for a final control element with         mounted enclosure) or terminal 1/12 (control
    current input                                          panel enclosure).
or temperature output:
Shows the temperature measured by the optional
temperature sensor as an analog current signal.
Use of temperature current signal:
• as input signal for another indicator.
1. Connect the + conductor to terminal 27 (wall-
    mounted enclosure) or terminal 1/6 (control panel
    enclosure).
2. Connect the – conductor to terminal 28 (wall-
    mounted enclosure) to terminal 1/7 (control panel
    enclosure).

                                                                                                           21
12.6 Connection of measuring cells
                                                                                                                                      37 38 39 40 41 42
Jumper setting
• All measuring values except for peroxide:                                                                                                                             +           -
  All cell types: position 1 (standard).                                                                                                                   7

                                                                                                                                                                                                                        TM03 6967 4506
• Measuring value peroxide:                                                                                                                               13
  Cell type HP (peroxide): position 1 (standard).
• Measuring value peroxide:
  Cell types AQC-D1/AQC-D3: position 2 (move the
  wire strap of the jumper (blue) to the higher
  position).
                                                                                                    Fig. 14 Connection to single-rod measuring

                                                                              TM03 6696 4506
                                                                                                            chains for pH, redox and fluoride
                             Peroxide with AQC-D1/AQC-
               2          2: D2/AQC-D3                                                         12.6.2 Connection of control panel enclosure
               1                                                                                      Conex ® DIA-2Q
                          1: Standard
 Jumper                                                                                                 M B/R G/C                     Pt 100

     Fig. 11 Jumper setting                                                                     1
                                                                                                2                                                     3
                                                                                                                                                      4
12.6.1 Connection of wall-mounted enclosure                                                     5
       Conex ® DIA-2Q
                                                                                                         7                             6
     15 17 19 21 23 25 27 29 31 33 35    37 38 39 40 41 42

      16 18 20 22 24 26 28 30 32 34 36                    5
                                                          1                                                        8
 1                                                        2
 4                 4
                   3                                  6
                                                                                                          9

                                                                                                                                                                                                                        TM03 5871 1106
                                                      7                                                                                                                           Conex
                                                                                                                                                                                 2/ 2/
              10                                                                                                     Sensor interface
                                                                                                                     Sensor-Interface                                           +3 - 4

                                                  8                                                       1/    1/          4/        4/        3/        3/                                        10
                                                                                                                                                                    A                      1
                                                                                                          11    13          1         3         1         3
                                                                                                              1/       1/        4/        4/        3/        3/
                                     9
                                                                       TM03 5872 1106

                                                                                                                                 2                                      B                 4
                                                                                                              12       14                  4         2         4

                                                                                                    Fig. 15 Connection to measuring cells
                                                                                                            AQC-D1/AQC-D2/AQC-D3

                                                                                                    M   B/R    G/C                          1/11 1/13               4/1     4/3     3/1       3/3         A

     Fig. 12 Connection to measuring cells
                                                                                                                                                 1/12 1/14                4/2     4/4     3/2       3/4       B
             AQC-D1/AQC-D2/AQC-D3

 15 17 19 21 23 25 27 29 31 33 35                  37 38 39 40 41 42
                                                                                                                                                               12         11

      16 18 20 22 24 26 28 30 32 34 36                                                                                                                                                        1     2         1/1 1/2
                                                                                                                                                                                                               -   +
                                                                                                                                                                                                                        TM03 6968 4506

                          11    12

     2 1
                                                                       TM03 6966 4506

                                                                                                    Fig. 16 Connection to measuring cells
                                                                                                            PA (peracetic acid) / HP (peroxide)

     Fig. 13 Connection to measuring cells
             PA (peracetic acid) / HP (peroxide)

22
Peculiarities for the connection at the control
                + -                                           panel enclosure of Conex® DIA-2Q
                                                              1. First connect the measuring cells, the single-rod
                                                                 measuring chains and the water sensor (if
                                                                 present) to the separate sensor interface.
                           7
                                                              2. Secondly, connect the sensor interface to the

                                             TM03 6969 4506
                           13
                                                                 Conex® DIA-2Q control panel enclosure.
                                                              Connecting the sensor interface to the
                                                              Conex® DIA-2Q (see back side of device)
                                                              • Measuring cells AQC-D1/AQC-D2/AQC-D3,
                                                                PA (peracetic acid) / HP (peroxide)
Fig. 17 Connection to single-rod measuring                      Connect terminals 4/1 to 4/14 of the sensor
        chains for pH, redox and fluoride                       interface to the corresponding terminals of the
                                                                Conex® DIA-2Q.
                                                              • Measuring cells HP (peroxide) /
Pos.   Description
                                                                PA (peracetic acid)
 1     Brown                                                    In addition, connect terminal A to terminal 1/1 and
                                                                terminal B to terminal 1/2 of the Conex® DIA-2Q.
 2     White
                                                              • Single-rod measuring chains
 3     Black                                                    (pH, redox, fluoride)
                                                                Connect terminals 3/1 to 3/4 of the sensor
 4     Blue
                                                                interface to the corresponding terminals of the
 5     Screen                                                   Conex® DIA-2Q.
 6     Outer conductor (screen)                               • Sample-water deficiency sensor
                                                                Connect terminal A to terminal 2/3 and terminal B
 7     Inner conductor                                          to terminal 2/4 of the Conex® DIA-2Q.
 8     Reference electrode
                                                                        When using measuring cell AQC-D2,
       Measuring electrode                                      Note    the water sensor must always be
 9     Counter electrode                                                connected and activated!

       Pt100 temperature sensor                               DIP switch
                                                              • If necessary, set the DIP switch for the desired
10     Water sensor
                                                                 measured value to "On" (move the switch to the
 11    Yellow                                                    right, top switch 1 is not used).
12     Green
                                                                       DIP

                                                                                                                 TM03 6699 4506
13     Outer conductor                                         OFF              On
                                                                          1
                                                                          2     ClO2, O3
                                                                          3     H2O2
                                                                         4      Cl2

                                                                Fig. 18 DIP switch

                                                                                                                 23
13. Operation
13.1 Control and display elements

                                                                          2 7 8 1

                                                                                                          TM03 6970 4506
 1                 6      5       4      3          2 7 8              6 5 4          3
     Fig. 19 Wall-mounted enclosure and control panel enclosure

Pos. Description                                        13.2 Display elements during initial
Control elements                                             commissioning
                                                        When connected to the power supply on the device’s
         Red alarm LED                                  initial commissioning and following the start-up
     1   • Flashes in case of faults or incorrect       indication, the display shows the "Sprache/language"
           entries.                                     menu.
     2   Display
                                                            Language/Langue...
Operating buttons
                                                            Deutsch
         [OK] button
                                                            English
     3   • Enters the selected menu.
         • Confirms the selected line or value.             Français
         [Down] button                                      Nederlands
         • Moves one line downward (the selected
     4
           line is displayed inversely).                •  The word "language" in the header is displayed in
         • Decreases values.                               all available languages successively at intervals
                                                           of approximately one second.
         [Up] button
                                                        Start the Conex® DIA-2Q by selecting the desired
         • Moves one line upward (the selected line
     5                                                  operating language:
           is displayed inversely).
         • Increases values.                            1. Select the desired language using the [Up] and
                                                           [Down] buttons.
         [Esc] button                                      – The selected language is displayed inversely
         • Returns to the previous menu.                      (white letters on black background).
     6
            – The data which were entered last are      2. Press [OK] to confirm.
              not changed.
                                                                       The selected language is stored and
Function buttons with yellow LED
                                                                       will remain the operating language
         [Cal] button                                                  when the device is rebooted. If
         • Switches between calibration mode and             Note      necessary, the operating language can
     7     measuring mode.                                             be changed in the "language" submenu
                                                                       in the "setup" menu.
            – In calibration mode, the corresponding
               LED illuminates.                                        See section 13.5 Setup.

         [Man] button
         • Switches between automatic and manual
     8     modes.
            – In manual mode, the corresponding
              LED illuminates.

24
The translations for the words "setup" and                                See sections 10.4 Measuring ranges and
"language" into the currently available languages                         13.5.4 Setting the measuring ranges for chlorine,
are:                                                                      chlorine dioxide, ozone, peroxide, peracetic acid,
                                                                          pH, redox and fluoride.
    Deutsch
                                                                          13.2.1 Display modes
    Hauptmenü           Grundeinstellung      Sprache
                                                                          Switching between display modes 1 and 2:
    English                                                               1. Use the [Up] and [Down] buttons to switch
    main menu           setup                 language                       between the two display modes:
    Français                                                              Display mode 1 with two parameters
    Menu principal      Paramétrage           Langue
    Nederlands                                                              ClO2                      pH

                                                                             0.30
    hoofdmenu           basisinstelling       taal

                                                                                                                               TM03 6971 4506
    Español                                                                                     mg/l

                                                                             4.00
    Menu principal      Ajuste básico         Idioma
    Italiano                                                                                     pH
    Menu principale     programm. fond.       lingua
                                                                          The large display shows the measured values for
    Português
                                                                          the two parameters (for example ClO2 and pH).
    Menu principal      Posição inicial       Língua                      The inverted font in the header displays the two
                                                                          parameters left-justified and right-justified.
    Pусский
                                                                          The measured value for the left-justified parameter 1
    главное меню        станд. настройка      язык                        is displayed in the first line, and the measured value
    Polski                                                                for the right-justified parameter 2 is displayed in the
                                                                          second line underneath the header. The measured
    manu główne         ustawienia            język                       value for a possibly active temperature
                                                                          measurement is not output in this display mode.
    chlorine                                                              Display mode 2 with two parameters

                                                                            ClO2                      pH
    0.43 mg/l

                                                                            0.30
                                                                                                                               TM03 6972 4506
                                                                                               mg/l

•     After selecting and confirming the operating
                                                                                     4.00       pH     c
      language by pressing [OK] during initial                                      100.0       °C     c
      commissioning, the display shows "chlorine" as
      the value to be measured.                                           The large display shows the measured values for
      – On subsequent start-ups, the display will show                    parameter 1, and the small display shows the
        the measured value selected the previous time.                    measured values for parameter 2 and the possibly
                                                                          active temperature measurement. "c" is displayed if
                                                                          the compensation functions are active.
      chlorine

               0.43 mg / l
                                                         TM03 6704 4506

                                5.20 pH   c
                                22 °C     c

•     On upward or downward violation of the selected
      measuring range, the display will show the upper
      or lower limit and flash.

                                                                                                                               25
Display with one parameter                                           13.3 Software overview

                                                                               Provided that the code numbers for
  ClO2                                                                         access right have been set, some
                                                                               menus (and submenus) as well as the

     0.30

                                                    TM03 6973 4506
                                                                       Note    functions Cal and Man are protected
                     mg/l                                                      against unauthorised access. The
                                                                               protected menus are marked with "C"
                                                                               (calibration rights) or "F" (full rights).
            100.0    °C     c
                                                                     Main menus
                                                                     • Controller 1 / 2, see section Controller 1/2.
The large display shows the measured values, and
the selected parameter is displayed in the header.                   • Alarm 1 / 2, see section Alarm 1/2.
The measured value for a possibly active                             • Service, see section Service.
temperature measurement is output in the second                      • Setup, see section Setup.
line. "c" is displayed if the compensation functions
are active.                                                          Function buttons
                                                                     • Cal, see section Calibration function.
Alarm signals
                                                                     • Man, see section Manual operation.
A parameter-based alarm refers to the flashing
parameter in the header. Parameter-independent                       Controller 1/2
alarms are displayed in the bottom line, but the                     "F" (full rights)
display does not flash for this alarm.                               Setting the parameters
If several alarms are present, they can be scrolled                  • Relay 1/2
using the [Up] and [Down] buttons. They are
displayed in chronological order. The selected alarm                    – setpoint
signal is displayed with inverted font. Subsequently,                   – controller parameters.
the display is switched to the last display mode set.                • Continuous controller
Display mode with active alarms and two                                 – setpoint
parameters                                                              – controller parameters.
                                                                     Alarm 1/2
  ClO2                     pH                                        "F" (full rights)
                                                                     • Alarm settings
     0.30                 4.00
                                                    TM03 6974 4506

                                                                        – alarm 1/2 values (switching points)
                                                                        – effective direction
     alarm line 1
                                                                        – hysteresis
     alarm line 2                                                       – alarm delay.
                                                                     • Dosing time monitoring
The parameters are displayed left-justified and right-                  – maximum dosing time (at constant dosing flow
justified in the header, and the measured values of                       level of 100 %).
the parameters are displayed directly underneath.
The measured value for a possibly active                             Service
temperature measurement and the display "c", if the                  • Calibration logbook 1/2
compensation functions are active, are suppressed.                      – the last 10 calibrations.
Display mode with active alarms and one                              • Calling up the controller 1/2 settings
parameter                                                            • Test of functioning of current outputs
                                                                     • Test of functioning of relays
  ClO2                                                               • Test of functioning of display.

  0.30
                                                    TM03 6975 4506

                       mg/l
     alarm line 1
     alarm line 2

The large display shows the measured values, and
the selected parameter is displayed in the header.
The measured value for a possibly active
temperature measurement and the display "c", if the
compensation functions are active, are suppressed.

26
Setup                                                      Selecting the functions "calibration" and
"F" (full rights)                                          "manual operation"
• Selecting language                                       See the buttons [Cal] and [Man] to the right of the
                                                           display.
• Parameter 1/2: selecting measured values
                                                           • Calibration: Press [Cal] to switch to the
• Selecting measuring cell
                                                              calibration menu (the yellow LED illuminates).
• Selecting measuring range
                                                           • Manual operation: Press [Man] to switch to
• Configuration of controller 1/2                             manual operation (the yellow LED illuminates).
• Switching on/off water sensor
• Time setting                                                       Switching to manual operation is only
                                                                     possible if a controller type has been
• Code function                                                      selected in the "setup" menu. The
                                                             Note
• Display contrast                                                   functions "Cal" and "Man" can only be
• Calling up factory settings                                        accessed by persons with calibration
• Current output: assignment of current outputs to                   rights or full rights.
   measuring ranges
• Calling up program version.
Calibration function
"C" (calibration rights)
• Calibration of selected parameters
   – chlorine, chlorine dioxide, ozone, peroxide,
     peracetic acid, pH, fluoride.
Manual operation
"C" (calibration rights)
• Running the configured controllers manually.

13.4 Main menu
1. Switch to "main menu" by pressing [OK] or, if
   necessary, by pressing [Esc] several times.
Options in "main menu"

    main menu

    controller
    alarm
    service
    setup

•     "controller"
      In this submenu, a controller can be
      parameterised. This option will only be displayed
      if a type of controller has been selected in the
      "setup" menu.
•     "alarm"
      In this submenu, the measured value is compared
      with the permitted value, and an alarm is
      triggered, if necessary.
•     "service"
      Diagnosis submenu. The measured values and
      the last 10 alterations of calibration data can be
      viewed. In this mode, values cannot be altered.
      If measuring cell AQC-D2 is selected, the data of
      the water sensor can be viewed.
•     "setup"
      In this submenu, the settings for language,
      parameters, measuring ranges, controllers, etc.
      can be adjusted.

                                                                                                                 27
13.5 Setup
All standard settings of the device can be defined in   The "setup" menu can only be accessed by persons
the "setup" menu. During initial commissioning, basic   having full rights.
functions are configured which after that should only   See section 13.5.8 Code function.
be altered rarely or even not at all.
                                                        Enter the code number.
13.5.1 Selection of measured values for chlorine, chlorine dioxide, ozone, peroxide, peracetic acid, pH,
       redox and fluoride

        setup

       parameter 1

                off
                chlorine
                chlorine dioxide        temp. meas.            temp. comp.
                ozone                   on                     on
                peroxide                off                    off
                peracetic acid

       parameter 2
                                                         pH-comp. chlorine *
                                                         on
                                                         off

                 off
                                       temp. meas.                           temp. meas.
                 pH
                 redox                 on                                    on
                 fluoride              off                                   off

                                                                                                      TM03 6733 4506

     Fig. 20 Selection of measured value in menus "parameter 1" and "parameter 2"

* pH-comp. chlorine is only available if chlorine and
pH have been selected as parameters.
1. Select the line "parameter 1" / "parameter 2"
   using the [Up] and [Down] buttons, and press
   [OK] to switch to the corresponding menu.
2. Use the [Up] and [Down] buttons to select the
   measured variable (parameter). Press [OK] to
   confirm.
3. Use the [Up] and [Down] buttons to select further
   settings. Press [OK] to confirm.

28
13.5.2 pH and temperature compensation                              The measuring cell that corresponds to the selected
                                                                    measured value can be selected:
pH compensation with chlorine measurement
                                                                    • AQC-D1/AQC-D2/AQC-D3 with chlorine, chlorine
The dissociation of hypochlorous acid (HOCl) into
                                                                      dioxide or ozone
the hypochlorit-anion (OCl–) leads to a loss of slope
(loss of sensitivity) of the sensor for chlorine                    • AQC-D1/AQC-D3, HP with peroxide.
measuring.                                                          The measuring cell PA (peracetic acid) is selected
Using a mathematical compensation function, this                    automatically if "peracetic acid" is selected as the
loss of sensitivity can be eliminated.                              measured value.
Temperature compensation                                            Monitoring the cleaning motor
Using a compensation function, the influence of                     (measuring cells AQC-D1)
temperature on the measurement can be eliminated                    Having selected measuring cell type AQC-D1, press
mathematically.                                                     [OK] to get to the "cleaning motor" submenu.
Control field for pH value, pH compensation,                        1. Switch the monitoring of the cleaning motor on/
temperature and temperature compensation in                            off.
the display of measured value                                       Measuring cell AQC-D2 / -D3 selected

    chlorine                                                           chlorine

               0.43 mg/l                                                           0.43 mg/l

                                                                                                                           TM03 6708 4506
                                                   TM03 6703 4506

                    5.20 pH         c
                    22 °C           c

    Fig. 21 Chlorine measurement with pH and                          Fig. 22 Chlorine measurement with AQC-D2 / -
            temperature compensation                                          D3

•  Press [Esc] once or twice to change to the display               A black bar on the display indicates the actual data
   with the measured value.                                         of the water sensor.
See sections 13.2 Display elements during initial                   See installation and operating instructions for the
commissioning and 13.6.3 Controller control fields                  potentiostatic measuring cell AQC-D2 / -D3.
on the display.
                                                                    13.5.4 Setting the measuring ranges for chlorine,
In addition to the current measured value, the                              chlorine dioxide, ozone, peroxide,
current pH value and the temperature of the sample                          peracetic acid, pH, redox and fluoride
water are indicated as well.
                                                                    In the "measuring ranges" menu, the corresponding
With activated pH compensation or temperature                       measuring ranges are assigned to the measured
compensation, the letter "c" for "compensation" is                  values which have been selected in the "parameters"
displayed at the end of the line.                                   menu.
With deactivated temperature measurement, the                       • In the "measuring ranges" menu, the following
water temperature for compensation should be                            options are available:
entered manually after calibration. See section
13.9.2 Calibrating the pH value.                                        – standard measuring ranges
                                                                        – "others."
13.5.3 Selection of measuring cell
                                                                    See section 10.4 Measuring ranges.
           The "measuring cell" submenu is                          • The measuring ranges for temperature can be
           shown only if the measured values                            defined in °C (Celsius) or in °F (Fahrenheit).
    Note   chlorine, chlorine dioxide, ozone,
           peroxide or peracetic acid were                                    The "temperature" submenu is only
           selected during the parameterisation.                              shown if the temperature measurement
                                                                      Note    has been switched on in the
Names of the measuring cells contained in the                                 "parameter" menu, or if parameter pH
software                                                                      or fluoride has been selected.
• AQC-D1
                                                                    13.5.5 Controller parameters 1/2
• AQC-D2
                                                                    See section 13.6 Selection, configuration and
• AQC-D3                                                            parameterisation of the controller in order to adjust
• HP (peroxide).                                                    the controllers.

                                                                                                                           29
13.5.6 Water sensor                                                   13.5.8 Code function
In the "wat. def. sensor" menu, the water sensor can                  The code function is designed to protect the device
be switched on/off.                                                   from unauthorised access.
In the event of sample-water deficiency, the following                Entering the four-digit code number and
will occur:                                                           changing it
• The malfunction-indicating relay is activated, and                  1. Select the line "code function" in the "setup"
    the alarm message "fault water sensor" is                             menu using the [Up] and [Down] buttons, and
    triggered.                                                            press [OK] to switch to the corresponding menu.
• With devices with control functions, the actuators                  There are two types of access rights:
    are switched to passive or closed.
                                                                      Calibration rights: The owner of calibration rights
            The water sensor must be switched on                      has access to the calibration menu and to manual
 Caution                                                              operation.
            for the measuring cell AQC-D2!
                                                                      The owner of calibration rights may do the following:
13.5.7 Setting the current time (date/time/summer                     • alter calibration data
       time)
                                                                      • operate control relays manually.
1. Switch from the "setup" menu to the "date/time"
   menu.                                                              Full rights: The owner of full rights has full access to
                                                                      all settings including calibration data.
                                                                      The owner of full rights may do the following:
     time set                                                         • alter calibration data
                                                                      • alter setup
                                                                      • parameterise the controller
        01 : 18 : 40 pm                                               • alter alarm settings
                                                     TM03 6709 4506

                                                                      • run the device manually.

                                                                      cal right
     time

                                                                      code             0000
     Fig. 23 Time setting

2. Set the device to the current time in the "time set"               old code
   menu in the format hh.mm.ss.
   – Press [OK] to switch to the next number field.                   2. Select the desired type of access rights, and
      The number field which is currently activated                      press [OK] to get to the corresponding menu.
      flashes.                                                        3. If an old code exists, confirm the old code number
   – Alter the settings by pressing the [Up] and                         first (on first use, confirm code 0000).
      [Down] buttons.                                                 4. Select "change".
   – Pressing the buttons continuously makes the                      5. Enter the old code in the submenu (see comment
      adjustment dynamically faster.                                     line at the bottom of the display) using the [Up]
3. Set the device to the current date in the "date"                      and [Down] buttons, and press [OK] to confirm
   menu in the format mm.dd.yyyy with English as                         and switch to the query "new code" (see the
   operating language or the format dd.mm.yyyy for                       comment line at the bottom of the display).
   all other languages similarly to the adjustment of                 6. Enter a new four-digit code number using the [Up]
   time. The corresponding day of the week                               and [Down] buttons. Press [OK] to confirm.
   (Mo...Su) is displayed automatically.                              7. Repeat to confirm: Set a new four-digit code
4. If necessary, enter the beginning and end date of                     number using the [Up] and [Down] buttons, and
   the summer time, the kind of time shift and the                       press [OK] to confirm.
   number of hours of the time shift.                                 8. Access rights can be cancelled by deleting the
                                                                         corresponding code number in the "delete"
                                                                         submenu.
                                                                      • Entering a valid four-digit code number gives the
                                                                         operator access to the corresponding functions
                                                                         for a limited time of 60 minutes.
                                                                      • If no code was entered previously, the desired
                                                                         menu can be accessed without restrictions. The
                                                                         code number 0000 will not be displayed / the
                                                                         operator will not be asked to enter it.

30
13.5.11 Factory setting reset
          If a wrong code is entered, access to
          the corresponding menus is denied. An                In the "factory setting" submenu, the
  Note    error message is triggered                           Conex® DIA-2Q can also be reset to the factory
          (duration: five seconds), and the device             setting using code 6742.
          will return to "main menu".
                                                                          Only use this function in an emergency.
Reset function                                                            All device settings are lost and must be
• Entering the code number "1998" deletes all                   Caution   re-entered!
  previously entered code numbers.                                        Do not disconnect the device from the
• All prior access codes are deleted and reset to                         power supply during the reset!
  "0000".                                                      Resetting the Conex® DIA-2Q to the factory
13.5.9 Adjusting display contrast                              setting
In the "display" menu, the contrast of the display can         • Reset
be adjusted.                                                     - Code: 0000 is displayed.
1. Switch from the "setup" menu to the "display"                 - Set code 6742 using the [Up] and [Down]
    menu using the [Up] and [Down] buttons, and                     buttons, and press [OK] to confirm.
    press [OK] to confirm.                                     The device is now returned to the original factory
                                                               setting.
          If the contrast setting is too high, it
          may not be possible to read the dis-                            Before subsequent start-up:
  Note    play. Hold down the [Down] button                     Caution   Check all parameters and set the device
          until the contrast setting is low enough                        again according to your application!
          to be read again.
                                                               General factory settings
13.5.10 Saving / accessing user settings
                                                               • Language**: The Conex® DIA-2Q is waiting for
In the "factory setting" submenu, the current device              language input. The languages "Deutsch/English
setting can be saved so that it can be reactivated                Français...." are indicated alternately.
later, or a saved setting can be activated.
                                                               • Summer time: off.
• Setup
                                                               • Code numbers: 0000 calibration rights, 0000 full
   - Save setup: Saves all current device settings                rights.
     from the menus (not just the "setup" settings).
                                                               • Current outputs 1-4: 0-20 mA.
   - Activate setup: Resets the device to the last
                                                               • Dosing monitoring: off.
     saved setup.
                                                               • Parameter 1: chlorine.
          In this menu, save your device settings              • Parameter 2: off.
          once you have set all the values in the              ** For the first calibration, the default value =
          "setup", "controller" and "alarm"                    last setting.
  Note
          menus. You can then activate them
          again at any time (even after a factory
          reset)!

Default values for parameter group 1

                                    Cl2                  ClO2/O3              PAA                 H2O2

Measuring range [mg/l]              0.00 - 2.00          0.00 - 1.00          0-100               0-100

                                                                              PA
Measuring cell                      AQC-D1               AQC-D1                                   AQC-D1
                                                                              (peracetic acid)

Temperature measurement             off                  off                  off                 off

Water sensor                        off                  off                  off                 off

Default values for parameter group 2

                                    pH                   Redox                      Fluoride

Measuring range                     0.00 - 14.00         0-1000                     0.00 - 2.00

Temperature measurement             off                  off                        off

Water sensor                        off                  off                        off

                                                                                                                    31
13.5.12 Current outputs
In the "current output" menu, the operator can assign      •     Enter the associated start-of-scale current value
the selected values to the current outputs and then              using the [Up] button. Press [OK] to confirm.
assign the current outputs to the selected measuring             – An additional line is displayed with the scan for
ranges.                                                            the full-scale value of the range "20.00 mg/l".
In the "current output" menu, the selected                 •     Enter the full-scale value of the range using the
parameters are listed in the following order:                    [Down] button. Press [OK] to confirm.
                                                                 – In the same line, "= 20 mA" is displayed.
    current output
                                                               chlorine

    chlorine
    pH                                                         0.20 mg/l = 0 mA
    temperature                                                15.00 mg/l = 20 mA

•     Output 1: parameter group 1: chlorine, chlorine
      dioxide, ozone, hydrogen, peroxide and peracetic
                                                           •     Enter the associated full-scale current value using
      acid
                                                                 the [Down] button. Press [OK] to confirm and
•     Output 2: parameter group 2: pH, redox, fluoride           return to the "current output" menu.
•     Output 3: temperature or continuous controller for
      parameters from group 2                              13.5.13 Program version
•     Output 4: continuous controller for parameters
      from group 1.                                            program version

Assignment of the current outputs to the
measuring range (example: chlorine                             Conex DIA-2Q
measurement)
There are two standard ranges, "0-20 mA" and
"4-20 mA" which can be assigned to the current                 v0.20.1     20030304
outputs. They are assigned to the measuring range
linearly.                                                  In case problems make it necessary to contact our
The start-of-scale and full-scale values can be freely     service department, the "program version" menu
defined within 0 to 20 mA in an optional setting for       enables the operator to easily identify the software
the current outputs 1 and 2 as well as for current         components of the actual device.
output 3 with temperature measurements.                    • Version, for example v0.20.1.
                                                           • Last update: yyyymmdd.
    chlorine

    0-20 mA
    4-20 mA
    others

•     In the corresponding submenu (for example
      chlorine), select the line "others" using the [Up]
      and [Down] buttons. Press [OK] to confirm.
•     In the subsequent display "0.00 mg/l", enter the
      start-of-scale value of the range using the [Up]
      button. Press [OK] to confirm.
      – In the same line, "= 0 mA" is displayed.

    chlorine

    0.20 mg/l = 0 mA

32
13.6 Selection, configuration and
     parameterisation of the controller
It takes two steps to set up the controller:
• First: selection and configuration of the controller
    type in the "setup" menu, "controller" submenu.
• Secondly: parameterisation of the selected
    controller type in "main menu", "controller"
    submenu.
13.6.1 Selection and configuration of the controller

     setup

    controller
    parameter 1
                        current
                        input
                        off                                prop. controller
    parameter 1
    proport. contrl.    0-20 mA                            interpulse ctrl.
                        4-20 mA                            pulse freq. ctrl.
                        others              low mA         cont. controller
                                            high mA

                        setpt controller       Limit contact
                        off                    downward viol.
                        limit contact          upward violation
     setpoint           interpulse ctrl.
     contrl.            pulse freq. ctrl.
                        cont. controller              ctrl. direction             ctrl. charact.
                                                      downward control            P
                                                      upward control              PI
                                                                                  PID

    combined            comp.
    contrl.             controller               ctrl. direction         ctrl. charact.    current
                        off                      downward                                  input
                                                                         P
                        interpulse ctrl.         control                 PI                0-20 mA        low mA
                        pulse freq. ctrl.        upward control          PID               4-20 mA        high mA
    controller          cont. controller                                                   others
    parameter 2

                                                                                            for mA, select values
    parameter 2                                                                             with [Up] and [Down]    TM03 6740 4506
    as controller                                                                           buttons
    parameter 1

    Fig. 24 Selection and configuration of the controller

•   In the "setup" menu, select the line "controller
    parameter 1" or "controller parameter 2" using the
    [Up] and [Down] buttons, and select the menu
    with the same name using [OK].

                                                                                                                    33
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