Eutech Instruments αlpha-CON560 Instruction Manual

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Instruction Manual

αlpha-CON560

Conductivity Controller

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68X216878 Rev 3 Aug 07

Preface

This manual serves to explain the use of the αlpha-CON 560 Industrial Conductivity Controller. The manual functions in two ways, firstly as a step by step

guide to help the user operate the instrument. Secondly, it serves as a handy reference guide. This instruction manual is written to cover many anticipated applications of the αlpha-CON 560 controller. If you have doubts in the use of the instrument, please do not hesitate to contact the nearest Eutech Instruments Authorised Distributor.

The information presented in this manual is subject to change without notice as improvements are made, and does not represent a commitment on part of Eutech Instruments.

Eutech Instruments cannot accept any responsibility for damage or malfunction of the unit due to improper use of the instrument.

Eutech Instruments Pte Ltd.

Table of Contents

1. Introduction ...........................................................................................................1

1.1 Before You Begin ................................................................................................................... 1

1.2 Intended Use .......................................................................................................................... 1

1.3 Safety Instructions.................................................................................................................. 2

1.4 Taking Out of Service / Correct Disposal of the Unit ............................................................. 2

2. Getting Started ......................................................................................................3

2.1 Description of Instrument ....................................................................................................... 3

2.2 Measurement and Control System......................................................................................... 4

2.3 Connecting Peripherals.......................................................................................................... 5

2.3.1 Connection Terminals.................................................................................................... 5

2.3.2 Switching Between Pt100 & Pt1000 Temperature Sensors.......................................... 6

2.3.3 Connecting Conductivity Probe ..................................................................................... 7

2.3.4 Connecting Temperature Probe .................................................................................... 7

2.4 Installation .............................................................................................................................. 8

2.4.1 Mechanical Dimensions................................................................................................. 8

2.4.2 Wall Mount..................................................................................................................... 8

2.4.3 Panel Mount................................................................................................................... 9

2.5 Display & Keypad ................................................................................................................. 10

2.5.1 Display Overview......................................................................................................... 10

2.5.2 Key Functions.............................................................................................................. 11

3. Operation .............................................................................................................13

3.1 Measurement mode ............................................................................................................. 13

3.2 Menu Overview .................................................................................................................... 14

4. Calibration Mode .................................................................................................15

4.1 About Calibration.................................................................................................................. 15

4.2 Calibration ............................................................................................................................ 16

5. Setup Mode ..........................................................................................................19

5.1 Enter Setup mode ................................................................................................................ 19

5.2 Temperature Coefficient Settings......................................................................................... 20

5.3 Temperature Settings........................................................................................................... 21

5.4 Relay 1/Relay 2 Settings...................................................................................................... 23

5.5 Controller Settings................................................................................................................ 25

5.6 Measuring Range Settings................................................................................................... 27

5.7 Configuration Settings.......................................................................................................... 28

5.8 Viewing Electrode Properties ............................................................................................... 30

6. Technical Specifications.....................................................................................31

7. List of Accessories .............................................................................................33

8. Troubleshooting ..................................................................................................34

9. General Information ............................................................................................35

9.1 Warranty............................................................................................................................... 35

9.2 Return of Goods ................................................................................................................... 35

9.3 Guidelines for Returning Unit for Repair .............................................................................. 35

10. Appendices .......................................................................................................36

10.1 Appendix 2 Conductivity of various aqueous solutions....................................................... 36

10.2 Appendix 2 Graphical Representation of the Function of Hysteresis ................................. 37

10.3 Appendix 3 General Instructions Concerning Controller Setting ........................................ 38

10.4 Appendix 4 - Abbreviations Used in LCD............................................................................. 39

Instruction Manual αlpha-CON 560

1. Introduction

1.1 Before You Begin

We thank you for purchasing the αlpha CON 560 controller.

The construction of the CON 560 controller employs leading edge technology and complies with safety regulations currently in force. Notwithstanding this, improper use could lead to hazards for the user or a third-party, and/or adverse effects on the plant or other equipment. Therefore, the operating instructions must be read and understood by the persons involved before working with the controller.

The instruction manual must always be stored close at hand, in a place accessible to all people working with the conductivity controller.

If you have questions, which are not or insufficiently answered in this instruction manual, please contact your authorized supplier. They will be glad to assist you.

1.2 Intended Use

αlpha CON 560 controllers are intended solely for conductivity and temperature measurement, as described in this instruction manual.

Any other use, or use not mentioned here, that is incompatible with the technical specifications is deemed inappropriate. The operator is solely responsible for any damage arising from such use.

Other prerequisites for appropriate use include:

– Comply with the instructions, notes and requirements set out in this

instruction manual.

– Comply with all local safety regulations concerning safety at work.

– Comply with all information and warnings in the documentation dealing

with the products used together with the conductivity controller (housings, sensors, etc.).

– Comply with local environmental and operational conditions.

Instruction Manual αlpha-CON 560

1.3 Safety Instructions

- The αlpha CON 560 controller should be installed and operated only by personnel familiar with the instrument and who are qualified for such work.

- A defective CON controller must neither be installed nor put into service.

- The αlpha CON 560 must only be operated under the specified operating conditions (see section 6).

- The αlpha CON 560 must not be repaired by the customer.

- No modifications to the αlpha CON 560 are allowed. The manufacturer/supplier accepts no responsibility for damage caused by unauthorized modifications. The risk is borne entirely by the user.

1.4 Taking Out of Service / Correct Disposal of the Unit

Taking out of Service

• First disconnect the unit from the power supply and then undo all electrical connections.

• Remove the unit from the wall / panel.

Correct Disposal of the Instrument

When the αlpha CON 560 controller is permanently taken out of service, obey the local environmental regulations for correct disposal or send the instrument to your local distributor, they will take care of proper disposal.

Instruction Manual αlpha-CON 560

2. Getting Started

2.1 Description of Instrument

The Eutech Instruments’ αlpha CON 560 controller is used for measuring conductivity and temperature values. The controller can be used for applications such as water treatment and controlling, galvanicdecontamination, chemical processing, food processing, clean or wastewater control and neutralization processes.

The controller has many user-friendly and safety features which include:

• Push-button keypad for calibration and setup

• Built-in non-volatile memory to ensure that calibration and other

information are not erased if power supply fails

• Menu-driven program that simplifies setup

• Automatic temperature compensation (ATC)

• Manual temperature compensation setting without the ATC probe, with

independent setting for calibration and process temperature

• Large dual display LCD for easy reading with clear multiple annunciators,

operational mode indicators and error indicators

• Two switching contacts as set-point relays

• Limit (on/off) control mode

• Separately adjustable high and low set-point hysteresis (dead bands) to

prevent chattering of relays around the set points

• 0 to 2000 seconds time delay adjustment on all relays – minimizes false

alarms

• Backlight LCD display

Instruction Manual αlpha-CON 560

2.2 Measurement and Control System

A typical measurement system consists of:

• A conductivity process controller

• A conductivity sensor with integrated or separate Pt100/Pt1000

temperature sensor

• An appropriate measurement cable

• An immersion, flow or process assembly

• A final control element such as pump or valve

lpha CON 560 Controller

Pump or Valve

lpha pH560

ESC

CAL

pH M onitor

ENT

Relay Output

Power Adaptor

Housing and Sensors

Measurement Cable

(+9 V DC)

Instruction Manual αlpha-CON 560

2.3 Connecting Peripherals

2.3.1 Connection Terminals

Remove Back Cover:

Remove the screws from the four corners at the back of the conductivity controller. Remove the back cover. The connectors are exposed on the back PCBA as shown in the Figure 1 below.

Connectors:

• J8 – 9V DC power connector (1.2mm diameter)

• J9 – Relay connections

• J10 - Conductivity electrode & Temperature probe connections (wiring has

to be done in the detachable connector

J10 Connections

1. CON Low Current

2. CON Low Voltage

3. CON High Voltage

4. CON High Current

5. Pt 100 Compensate

6. Pt 100 Sense

7. Pt 100 GND

8. (No connection)

J9 Connections

Relay 1 & 2

9V DC Power

Screw

REL 1

J10

REL 2

Figure 1: Outer Side of Back PCBA

Instruction Manual αlpha-CON 560

2.3.2 Switching Between Pt100 & Pt1000 Temperature Sensors

The controller supports both Pt100 & Pt1000 (2-wire or 3-wire) temperature sensors. The default factory setting is Pt100. If you need to use Pt1000 temperature sensor, you have to change the jumper setting (J7) as described below.

Remove Back Cover:

Remove screws from the four corners at the back of the conductivity controller. Remove the back cover.

Remove Back PCBA:

Remove the screw located center of the back PCBA (

Figure 1). Detach the back PCBA from the controller. Turn over the back PCBA. Locate J7 jumper on the inner side of the back PCBA as shown in Figure 2 below.

Jumper Setting for

Pt100

(Factory Default)

Jumper Settings for

Pt1000

Figure 2: Inner Side of Back PCBA

Set Jumper J7:

Set the J7 jumper to required sensor (Pt100 or Pt1000) type.

Instruction Manual αlpha-CON 560

2.3.3 Connecting Conductivity Probe

Any industrial conductivity probe (2-cell or 4-cell) can be connected to the conductivity controller.

2-Cell Conductivity Probe:

1. Short Pin 1 & 2 of J10 connector using a jumper wire.

2. Connect CON low input wire (white) to Pin 2 of J10 connector.

3. Connect CON high input wire (black) to Pin 3 of J10 connector.

4. Short Pin 3 & 4 of J10 connector using a jumper wire.

4-Cell Conductivity Probe:

1. Connect CON low input wire (black) to Pin 1 of J10 connector

2. Connect CON low input wire (white) to Pin 2 of J10 connector.

3. Connect CON high input wire (orange) to Pin 3 of J10 connector.

4. Connect CON high input wire (blue) to Pin 4 of J10 connector.

2.3.4 Connecting Temperature Probe

For Automatic Temperature Compensated (ATC) conductivity readings, an in-built temperature sensor is usually integrated with industrial conductivity probes. Alternatively, a separate 100Ω Pt RTD temperature probe (2-wire or 3-wire) can be connected to the controller.

3-Wire Probe:

1. Connect PT100 compensate wire to Pin 5 of J10 connector.

2. Connect PT100 sense wire to Pin 6 of J10 connector.

3. Connect PT100 GND wire to Pin 7 of J10 connector.

2-Wire Probe:

4. Short Pin 5 & 6 of J10 connector using a jumper wire.

5. Connect PT100 sense wire to Pin 6 of J10 connector.

6. Connect PT100 GND wire to Pin 7 of J10 connector.

Instruction Manual αlpha-CON 560

2.4 Installation

2.4.1 Mechanical Dimensions

lpha CON560

ESC

CAL

2.4.2 Wall Mount

ENT

Conductivity Monitor

Cover the catch slots at

both sides with overlays

Pierce through holes at

both sides

Instruction Manual αlpha-CON 560

2.4.3 Panel Mount

Prepare panel cut-out of

92.0 mm X 92.0 mm

Remove back cover of

conductivity controller and slide it through panel cut-out

Gasket

Panel

Insert threaded rods through catch

until conductivity controller is held against panel

Attach catch to both sides

of conductivity controller

Instruction Manual αlpha-CON 560

2.5 Display & Keypad

2.5.1 Display Overview

The Liquid Crystal Display (LCD) of αlpha CON 560 conductivity controller has two alpha-numerical displays (Upper and a Lower).

• Upper display: Measured conductivity value is displayed when the

controller is in normal operation (measurement) mode.

• Lower display: Measured temperature value is displayed when the

controller is in normal operation (measurement) mode. In conductivity calibration mode, measured conductivity values are displayed here.

The two displays indicate function names, options & settings in Setup mode. Refer ‘Appendix 4 - Abbreviations Used in LCD’ for more details.

The LCD also consists of various mode indicators, status annunciators and unit of measurement indicators.

Upper Display

Mode Indicators

MEAS

SETUP

CAL

Status Annunciators

READY

HOLD

ATC

Measurement mode (Refer Section ) 3.1

Setup mode (Refer Section ) 5

Calibration mode (Refer Section ) 4

Appears when the reading is stable

Appears in Setup mode and Calibration mode to indicate that the relay function is frozen

Appears when Automatic Temperature Compensation (ATC) is enabled. Not visible when Manual Temperature Compensation (MTC) is enabled. Flashes if the temperature probe is faulty in its ATC mode.

SETUP MEAS

READY

HOLD

ERR

8. 8. 8. 8

CAL

.8.8.8

Lower Display

µS

°F

°C

ATC

(Refer Section ) 5.3

ERR

Appears when an error occurs

Electrode annunciator. Blinks during calibration error (Refer Section ) 4.2

Buffer annunciator. Appears in calibration mode (Refer Section ) 4.2

Cell Constant (Refer Section ) 4.2

Instruction Manual αlpha-CON 560

Units of Measurement Indicators

µS

ºC

ºF

Conductivity in Milli Siemens

Conductivity in Micro Siemens

Line Resistance in Ohms (Refer Section ) 5.7

Temperature Coefficient (Refer Section 5.2

Temperature in Celsius (Refer Section )

Temperature in Fahrenheit (Refer Section )

2.5.2 Key Functions

)

5.3

lpha CON560

Key Description

CAL

Enter Calibration mode

Enter Setup mode

Access sub screens (parameters) within a group of settings in Setup

ENT

mode

Confirm (save) setup parameters and numerical values

Start/Confirm calibration in Calibration mode.

Select a group of settings in Setup mode.

Select parameters and increment/decrement numerical values in Setup and Calibration modes.

(When pressed continuously, speed of value increment/decrement increases)

ESC

CAL

Conductivity Monitor

ENT

Returns to Measurement mode when both keys are pressed simultaneously.

Instruction Manual αlpha-CON 560

3. Operation

3.1 Measurement mode

When the conductivity controller is powered on, the display shows all the LCD segments briefly, and then automatically enters into the measurement

mode.

MEAS

READY

µS

°C

25.0

The mode indicator ‘MEAS’ at the top of the display indicates that the conductivity controller is in measurement mode. The upper alpha-numerical display shows the measured conductivity value, while the lower display shows the temperature value.

The controller has six selectable measuring ranges. The unit of measurement and resolution of the conductivity reading depend on the selected measuring range. If the controller reads a conductivity reading beyond the selected measuring range, the display shows ‘Or’ (over range) error indicator.

NOTE:

From measurement mode you can access:

• Calibration mode (by pressing CAL key)

• Setup mode (by pressing ENT key)

To guarantee accurate readings, the measuring system (the conductivity controller and the sensor) must be calibrated regularly.

ATC

For more details, refer section mode.)

4 for Calibration mode and section 5 for Setup

Instruction Manual αlpha-CON 560

3.2 Menu Overview

READY

MEAS

ENT

µS

CAL ENT

°C

ATC

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

ENT

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

ENT

Instruction Manual αlpha-CON 560

4. Calibration Mode

4.1 About Calibration

Calibration should be carried out each time a new electrode is attached to the controller or when you suspect that the controller/electrode is out of calibration. The controller allows you to perform temperature calibration and conductivity calibration.

About Temperature Calibration

It is important to ensure that temperature calibration is carried out prior to conductivity calibration since temperature readings affect the accuracy of conductivity measurements. It is recommended that temperature calibration should be carried out only if the temperature value displayed on the controller is different from that of a calibrated thermometer. A temperature offset calibration of ± 10 °C/± 18 °F from the default reading is allowed. Once a temperature calibration is performed, conductivity calibration should be carried out to ensure the accuracy of conductivity measurements.

About Measuring Ranges & Conductivity Calibration

The controller has six selectable conductivity measuring ranges. You can only calibrate one-point in the measuring range that you have selected for your process application. You have to recalibrate the controller every time you change the measuring range since the calibration data of the controller will be reset every time a new measuring range is selected.

About Conductivity Calibration

During conductivity calibration, the controller allows a calibration window of ± 40% from the measured default reading of the calibration standard. The minimum allowable calibration point is 10% of the full scale reading of the measuring range selected.

For best results, select a standard conductivity solution close to the sample value you are measuring.

Instruction Manual αlpha-CON 560

4.2 Calibration

The controller requires one-point calibration. Conductivity calibration is always carried out in the specific measuring range selected for the controller. Make sure, the controller is set to desired measuring range before you enter calibration mode (Refer Section 5.6 for selecting measuring ranges).

Select a suitable standard conductivity solution so that its conductivity value is within 10% to 100% of the full scale of the selected measuring range of the controller. (For better accuracy, select the calibration standard to be nearly 50% of the full scale of the measuring range selected.) Prepare calibration standard solution in two beakers – one for rinsing and the other for calibration. Prepare separate de-ionized water for electrode rinsing.

All new calibration values will automatically override existing calibration data. If you wish to abort the calibration, press ▲ and ▼ keys simultaneously and the controller reverts to measurement mode and the controller will revert to previous calibration data.

MEAS

READY

µS

CAL

°C

ATC

From measurement mode press CAL key to enter calibration mode.

The display briefly shows the cell type (“2 CELL” or “4 CELL”) to which

HOLD

the controller is configured (Refer section

CAL

ENT

READY HOLD

5.7 for cell type settings)

CAL

µS

ENT

READY HOLD

READY

MEAS

Next, the last configured cell constant (k) is displayed in the upper display. Use ▲ or ▼ keys to adjust the cell constant to mach the cell constant of the conductivity probe. Adjustable range is 0.10 to 10.0. Press ENT key to confirm the new cell constant value.

Rinse the electrode in de-ionized water and then rinse with the calibration standard. Immerse the probe in calibration standard solution intended for calibration and swirl gently to create a homogenous sample. Make sure there are no any air-bubbles trapped in the sensor.

CAL

ENT

µS

°C

The upper display shows the currently measured conductivity value of

the solution based on last calibration (if any). The lower display shows uncalibrated (default) reading of the solution. The buffer annunciator appears in LCD. The ‘READY’ annunciator appears when the reading is stable.

Once the reading stabilizes press the ▲ or ▼ key to adjust the upper display value to that of the standard solution. Press the ENT key to accept the value.

Instruction Manual αlpha-CON 560

NOTES:

• The acceptable calibration window is ±40% of the displayed (default) value. For example, if the display is 1000 µS, the values to which it can be adjusted is 600 to 1400 µS.

• If the conductivity reading of the solution is not within 10% to 100% of the full scale of the selected measuring range, calibration error occurs; LCD displays “ERR” and flash electrode annunciator.

• If the conductivity reading of the solution is beyond the selected measuring range, calibration error occurs; LCD displays “Or” (over range), “ERR” and flashes electrode annunciator.

• If calibration error occurs, exit form calibration mode by pressing ▲ and ▼ keys simultaneously.

Calibration is completed. The display shows the calibration factor (FCt).

This serves as an indication of the effectiveness of the sensor which will degrade with time and usage. An effective sensor should have a calibration factor of 0.60 to 1.40

Press ENT key to return to measurement mode.

NOTES:

• If you use a 2-cell conductivity sensor, make sure that the pin 1 and 2 are shorted and pin 3 and 4 are shorted on the J10 connector. (Refer section 2.3.3 for more details)

• When calibrating with manual temperature compensation, the controller automatically changes from the preset process temperature to the calibration temperature. After leaving the Calibration mode, the controller switches back to the process temperature (for setting the calibration temperature and the process temperature, see section 5.3)

WARNING: If you change the measuring range of the controller after calibration is done, the controller will reset back to its factory default calibration.

Instruction Manual αlpha-CON 560

5. Setup Mode

5.1 Enter Setup mode

The setup mode allows you to customize the settings of the conductivity controller to suite your requirements. While in measurement mode, press the ENT key to access setup mode. LCD shows ‘SETUP’ mode indicator and the first page of setup (rAng – Range settings). Press ▲ or ▼ key to access other pages of the setup mode.

READY

MEAS

µS

°C

ATC

ENT

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

ENT

SETUP

HOLD

SETUP

HOLD

ENT

NOTES:

• To exit setup mode at any time press ▲ and ▼ keys simultaneously (escape). The controller returns to the measurement mode

• If you do not press any key for 2.5 minutes, the controller automatically exists from the setup mode.

Instruction Manual αlpha-CON 560

5.2 Temperature Coefficient Settings

Setting the temperature coefficient to match your process/calibration liquids allows controller to achieve conductivity readings with higher accuracy.

SETUP

HOLD

From measurement mode press ENT key to enter setup mode as

ENT

SETUP

HOLD

SETUP

HOLD

described in section

ENT

SETUP

HOLD

5.1. The LCD shows the first screen of setup mode

ENT

SETUP

HOLD

(rAng). Press ▲ or ▼ key to select temperature coefficient settings screen (tC).

Press ENT key to access temperature coefficient settings (tC).

Select type of temperature coefficient: The upper display shows the

last configured temperature coefficient type (Lin or PUr). Press ▲ or ▼ key to select the desired type based on type of your process liquid.

PUr :

Pure water temperature coefficient: Select this if your process

liquid is pure water or ultra pure water.

ENT

Lin :

Linear temperature coefficient: Select this for all other process liquids

Press ENT key to confirm your selection.

If PUr was selected:

The controller reverts back to tC screen

If Lin was selected:

Select temperature coefficient for process liquid: The lower

display shows ‘P.tC’. The upper display shows last configured temperature coefficient for process liquid (if any). The default value is 2.1%. Press ▲ or ▼ key to select the desired value. Allowable range: 0 to 10%.

Press ENT key to confirm your value.

Select temperature coefficient for calibration liquid: The lower

display shows ‘C.tC’. The upper display shows last configured temperature coefficient for calibration liquid (if any). The default value is 2.1%. Press ▲ or ▼ key to select the desired value. Allowable range: 0 to 10%. Press ENT key to confirm your value. The controller reverts to tC screen.

Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode.

Instruction Manual αlpha-CON 560

5.3 Temperature Settings

Automatic Temperature Compensation (ATC):

The conductivity value of a sample is affected by temperature. Use ATC feature of the controller to compensate for conductivity changes when the temperature of the sample or process liquid fluctuates. Connect a separate temperature probe (Pt100/pt1000) to the controller if an integrated conductivity/Temperature probe is not available.

Manual Temperature Compensation (MTC):

Set the controller to MTC (disable ATC) when the temperature of sample or process liquid is constant and a temperature probe is not available. If you disable ATC, the controller allows you to set your process temperature (P.ºC) and calibration temperature (C.ºC). This allows calibration at a different temperature other than the process temperature. Example: Setting calibration temperature of 25°C lets you calibrate using standard solutions at 25°C, even if your process temperature is different from 25°C.

SETUP

HOLD

ENT

SETUP

HOLD

SETUP

HOLD

°C

°F

ENT

SETUP

HOLD

SETUP

HOLD

°C

ENT

SETUP

HOLD

SETUP

HOLD

°C

ENT

SETUP

HOLD

SETUP

HOLD

From measurement mode press ENT key to enter setup mode as

described in section

5.1. The LCD shows the first screen of setup mode

(rAng). Press ▲ or ▼ key to select Temperature settings screen (SET

ºCF).

Press ENT key to access temperature settings (SET ºCF).

Selecting unit of measurement for temperature: The upper display

shows ‘Unit’ and the lower display shows the last configured unit of measurement for temperature.

ENT

°C

ATC

ENT

Press ▲ or ▼ key to select the desired units for temperature (ºC or ºF). Press ENT key to confirm your selection.

Enable/disable ATC: The lower display shows ‘AtC’ and the upper

display shows the last configured ATC selection (‘On’ or ‘OFF’).

Press ▲ or ▼ key to enable (ATC On) or disable (ATC OFF) automatic temperature compensation. Press ENT key to confirm your selection.

Instruction Manual αlpha-CON 560

If ATC enabled (ATC On):

Selecting temperature offset: The upper display shows the last

configured temperature offset value (if any), otherwise the default is zero. The lower display shows currently measured temperature reading (including last configured offset value). LCD shows ‘ATC’ annunciator in lower-right corner.

Place a thermometer, which is known to be accurate, in your sample or process liquid. Make sure your temperature probe is placed in the same liquid. Compare the stabilized temperature reading displayed on the controller with the thermometer. If there is a difference between the two readings (offset), you can adjust the reading of the controller. Press ▲ or ▼ key to adjust the lower display to the correct temperature value.

As the lower display value changes, the controller adjust the upper

display reading automatically to suit the new offset value. Up to ± 10 ºC/ ± 18 ºF offset is allowed.

Press ENT key to confirm the value. The controller reverts to SET ºCF screen.

If ATC disabled (ATC OFF):

Setting process temperature: The lower display shows ‘P.ºC’ and

the upper display shows the last configured process temperature. Press ▲ or ▼ key to adjust the upper display to desired process temperature. Allowable range: –10.0 to 125.0°C / 14.0 to 257.0°F.

Press ENT key to confirm the process temperature.

Setting calibration temperature: The lower display shows ‘C.ºC’

and the upper display shows the last configured calibration temperature. Press ▲ or ▼ key to adjust the upper display to desired calibration temperature. Allowable range: –10.0 to 125.0°C /

14.0 to 257.0°F.

Press ENT key to confirm the calibration temperature. The controller reverts to SET ºCF screen.

Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode.

To exit from any intermediate steps, press ▲ and ▼ keys simultaneously (escape). The controller returns to the first screen of temperature settings SET

ºCF.

Instruction Manual αlpha-CON 560

5.4 Relay 1/Relay 2 Settings

NOTE:

The SP1 settings determine the operating parameters for Relay 1; while SP2 settings define the operating parameters for Relay 2. Since these two settings have identical setup parameters, only SP1 is described here.

Note that when you change measuring range of the controller, the values you have set for SP1 & SP2 will not be affected. However, the unit of measurement & resolution displayed in LCD for SP1 & SP2 will change according to the newly selected measuring range.

If controller type is set to ‘OFF’ (Refer section 5.5 for controller settings), the ‘Relay 1/Relay 2 Setting’ is not available.

SETUP

HOLD

From measurement mode press ENT key to enter setup mode as

ENT

SETUP

HOLD

described in section

µS

ENT

SETUP

HOLD

SETUP

HOLD

5.1. The LCD shows the first screen of setup mode

µS

ENT

SETUP

HOLD

µS

ENT

SETUP

HOLD

SETUP

HOLD

(rAng). Press ▲ or ▼ key to select relay 1 (Set point 1) settings screen (SP1).

Press ENT key to access relay 1 settings (SP1).

Setting set point value: The upper display shows the last configured set

point value, otherwise the default value 100 µS. Press ▲ or ▼ key to enter the value for set point 1, at which control function of the conductivity controller should activate. Press ENT key to confirm your set point value.

ENT

Select relay function: The upper display shows the last configured relay

function (LO = Low or HI=High). Press ▲ or ▼ key to select the desired function.

Press ENT key to confirm your selection.

Instruction Manual αlpha-CON 560

This parameter lets you choose the relay function. Select ‘LO’ to

NOTE:

activate the relay when the conductivity reading undershoots the set point (SP1) or select ‘HI’ to activate the relay when the conductivity reading overshoots the set point (SP1). SP1 and SP2 can be selected as ‘LO/LO’, ‘LO/HI’, ‘HI/LO’, or ‘HI/HI’.

Setting hysteresis value: The lower display shows ‘HYS’. The upper

display shows the last configured value, otherwise the default value 20 µS. Press ▲ or ▼ key to enter the hysteresis value for set point 1. Allowable range: 0 to 10% of full-scale of the selected measuring range.

Press ENT key to confirm your hysteresis value.

Hysteresis prevents rapid relay contact switching if the

NOTE:

conductivity reading is fluctuating near the set point. Refer

Appendix 2

‘ Graphical Representation of the Function of Hysteresis

Setting on-delay time: The lower display shows ‘On.d’. The upper

’.

display shows last configured on-delay value. Press ▲ or ▼ key to enter the on-delay time for set point 1. Allowable range: 0 to 2000 seconds. When the conductivity reading is reached the set point 1, the controller delays the relay activation (switch on) by the on-delay time you set here.

Press ENT key to confirm your on-delay time.

Setting off-delay time: The lower display shows ‘OF.d’. The upper

display shows last configured off-delay value. Press ▲ or ▼ key to enter the off-delay time for set point 1. Allowable range: 0 to 2000 seconds. When the conductivity reading is reached the set point 1 plus hysteresis value, the controller delays the relay deactivation (switch off) by the offdelay time you set here.

Press ENT key to confirm your off-delay time. The controller reverts to SP1 screen.

Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode.

Instruction Manual αlpha-CON 560

5.5 Controller Settings

The controller settings allow you to set the relay type and relay status of the controller.

SETUP

HOLD

ENT

SETUP

HOLD

SETUP

HOLD

ENT

SETUP

HOLD

SETUP

HOLD

ENT

From measurement mode press ENT key to enter setup mode as

described in section

5.1. The LCD shows the first screen of setup mode

(rAng). Press ▲ or ▼ key to select controller settings screen (Cntr).

Press ENT key to access controller settings (Cntr).

Select the controller type: The lower display shows ‘tyP’. The upper

display shows the last configured controller type. (‘OFF’ or ‘L.Ct’). Press

▲ or ▼ key to select the desired controller type.

OFF :

L.Ct:

Press ENT key to confirm your selection.

Controller Off

Selecting ‘OFF’, the conductivity controller stops functioning as a controller by preventing relay functions. Once the controller type is set to ‘OFF’, the setup mode does not show you the Relay 1/Relay 2 settings.

Limit value control (Controller On)

Selecting ‘L.Ct’, the conductivity controller is set to function as a controller. When the controller type is set to ‘L.Ct’, the Relay 1/Relay 2 settings are available in the setup mode for you to configure relay operating parameters.

Instruction Manual αlpha-CON 560

If Controller type was set to Off (OFF)

The controller reverts to Cntr screen.

If Controller type was set to On (L.Ct)

Select the relay status under Non-Alarm condition: The lower

display shows ‘rEL’. The upper display shows the last configured relay status. (‘dEEn’ or ‘En’). Press ▲ or ▼ key to select the desired relay status.

dEEn: De-energized

En: Energized

Press ENT key to confirm your selection. The controller reverts to

Cntr screen.

Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode.

Instruction Manual αlpha-CON 560

5.6 Measuring Range Settings

The conductivity controller has 6 different measuring ranges. You need to select a range which is the most suitable for conductivity reading of your applications/samples. The factory default is 2000 µS (0 to 2000 µS/cm).

The measuring range you select here will affect the way the controller behaves in the measurement mode and calibration mode. In measurement mode, if the conductivity reading of the controller is above the selected measuring range, the LCD shows “Or” (over range) error. In calibration mode, the controller adjusts calibration tolerance based on full scale of the selected measuring range. The calibration is carried out only for the selected measuring range.

WARNING: If you change the measuring range of the controller after calibration is done, the controller will reset back to its factory default calibration.

From measurement mode press

ENT key to enter setup mode as

described in section

5.1. The LCD shows the first screen of setup mode (rAng). Press ENT key to access measurement range setting (rAng).

The upper display shows the

currently selected measuring range. The factory default is 2000 µS. The lower display shows the currently configured cell constant (k). (Refer section

4.2 for setting cell constant)

Press ▲ or ▼ key to select the desired measuring range. Press ENT key to confirm your selection.

The controller reverts to rAng screen.

Measuring range Resolution

0.000 to 2.000 µS/cm 0.001 µS/cm

0.00 to 20.00 µS/cm 0.01 µS/cm

0.0 to 200.0 µS/cm 0.1 µS/cm 0 to 2000 µS/cm 1 µS/cm

0.00 to 20.00 mS/cm 0.01 mS/cm

0.0 to 200.0 mS/cm 0.1 mS/cm

SETUP

HOLD

ENT

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

µS

ENT

µS

ENT

µS

ENT

µS

ENT

Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode.

Instruction Manual αlpha-CON 560

5.7 Configuration Settings

Configuration settings let you to enable/disable backlight of the LCD, select between 2-cell & 4-cell and reset the controller to factory defaults.

SETUP

HOLD

ATC

ENT

µS

°C

ENT

SETUP

HOLD

SETUP

HOLD

ENT

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

HOLD

SETUP

ENT

HOLD

This screen app ears only

when 2-c ell is selected

and measuring range is set to

0.0 to 200.0 mS/cm

ENT

READY

ENT

MEAS

SETUP

HOLD

ENT

From measurement mode press ENT key to enter setup mode as

described in section

5.1. The LCD shows the first screen of setup mode (rAng). Press ▲ or ▼ key to select configuration settings screen (Cnfg).

Press ENT key to access configuration settings (Cnfg).

Enable/disable LCD backlight: The upper display shows ‘LitE’. The

lower display shows last configured backlight selection (‘On’ or ‘OFF’).

Press ▲ or ▼ key to enable (LitE On) or disable (LitE OFF) backlight of

the LCD.

Press ENT key to confirm your selection.

Select cell type of the sensor: The lower display shows ‘CEL’. The

upper display shows the last configured cell type (‘2’ or ‘4’).

Instruction Manual αlpha-CON 560

Press ▲ or ▼ key to select the cell type of your conductivity probe.

Press ENT key to confirm your selection.

NOTE: If you use a 2-cell conductivity sensor, make sure that the pin 1

and 2 are shorted and pin 3 and 4 are shorted on the J10 connector. (Refer section

Setting line resistance: The lower display shows ‘L.Ad’ and the upper

2.3.3 for more details)

display shows the last configured line resistance; otherwise the default is

0.00 R.

NOTE: Line resistance of sensor cable constitutes to an error in measurement of high conductivity values. The controller will compensate this error if you specify line resistance value in this setting. The setting is available only if the cell type is set to 2-cell (step 3 above) and the measuring range is selected to ‘0.0 to 200.0 mS/cm’.

Press ▲ or ▼ key to set the line resistance of the sensor cable connected to the controller.

Press ENT key to confirm your selection.

Reset to factory defaults: The display shows ‘nO dEF’.

Press ▲ or ▼ key to select:

nO dEF : Not default reset of the controller. User configured values

remain active, when confirmed by pressing ENT key.

FCt dEF: Reset all settings of the controller to factory defaults, when

confirmed by pressing ENT key.

CAL dEF: Reset all calibration settings of the controller to factory

defaults, when confirmed by pressing ENT key.

NOTE: Refer section 6 for factory/calibration default settings

Press ENT key to confirm your selection.

- If ‘nO dEF’ was selected, the controller reverts to Cnfg screen.

Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement

mode.

- If ‘FCt dEF’ or ‘CAL dEF’ was selected, the controller performs the selected reset and returns to measurement mode.

Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode.

To exit from any intermediate steps, press ▲ and ▼ keys simultaneously (escape). The controller returns to the first screen configuration settings (Cnfg).

Instruction Manual αlpha-CON 560

5.8 Viewing Electrode Properties

Each time you calibrate the conductivity sensor, the controller re-calculates the calibration factor of the sensor and shown in the LCD at the end of calibration. The setup mode allows you to view the last saved calibration factor and cell constant at any time.

SETUP

HOLD

ENT

SETUP

HOLD

ENT

SETUP

HOLD

ENT

From measurement mode press ENT key to enter setup mode as

described in section

5.1. The LCD shows the first screen of setup mode (rAng). Press ▲ or ▼ key to select viewing electrode properties screen (CdAt).

Press ENT key to view electrode properties (CdAt).

Cell constant: The lower display shows ’CEL’ and the upper display

shows the last configured cell constant.

Press ENT key.

Calibration factor: The lower display shows ‘FCt’ and the upper display

shows the calibration factor based on the last conductivity calibration.

NOTE: The upper display shows ‘- - - ‘ if the controller has not been calibrated yet or the controller has been reset to factory defaults.

Press ENT key to quit from electrode properties screen. The controller reverts to CdAt screen.

Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode.

Instruction Manual αlpha-CON 560

6. Technical Specifications

General Specification

Conductivity

Measuring Range: Resolution:

0.000 - 2.000 µS/cm 0.001 µS/cm

0.00 - 20.00 µS/cm 0.01 µS/cm

0.0 - 200.0 µS/cm 0.1 µS/cm 0- 2000 µS/cm 1 µS/cm

0.00 - 20.00 mS/cm 0.01 mS/cm

0.0 - 200.0 mS/cm 0.1 mS/cm Relative accuracy ± 1% of full scale reading System accuracy The effective measuring range and the total system

accuracy depend on the sensor used with the controller. Please refer respective sensor documentation.

Temperature

Measuring range -10.0 to +125.0 oC

+14.0 to +257.0 oF

Resolution 0.1

Relative accuracy ±0.5 oC

Sensor 2 wire / 3 wire - Pt100 or Pt1000 (Jumper Selectable) Compensation Automatic or Manual (reference at 25oC)

0.1 oF

±1.0 oF

Calibration

Conductivity

Number of calibration points 1 point Calibration window ±40% of default reading Calibration standard solution window 10% to 100% of the selected measuring range

Temperature

Offset Adjustment ± 10 ˚C/ ± 18 ˚F

Controller

Output 2 SPST Relays Relay 1/Relay 2 function (for Set Point 1 (SP1) & Set Point(SP2) Hysteresis window 0% to 10 % of selected measuring range

On-delay & Off-delay time 0 to 2000 seconds

Display

LCD 7 segments display with symbols for status information Back light On/Off selectable

Electrical Data and Connections

Conductivity Input Screw Terminal (3.5mm pitch) Connection terminal 8-pin & 4-pin terminal blocks, DC power connector

EMC Specifications

Emission EN 61 36 Susceptibility EN 61326

LO (Relay is active when measured value < Set point) HI (Relay is active when measured value > Set point)

(1.2mm diameter)

Instruction Manual αlpha-CON 560

Other

Power Input Universal +9 V DC Adaptor and 24V DC Supply Dimensions (W x H x D) 96mm x 96mm x 66 mm Weight (Estimated) 210g Ambient Temp. operating range 0 to 40 oC Maximum Relative Humidity 80% up to 31 oC decreasing linearly to 50% at 40oC

Calibration Default Settings (CAL dEF)

Conductivity

Calibration factor Reset to 1.000

Factory Default Settings (FCt dEF)

Conductivity

Calibration factor Reset to 1.000 Cell constant 1.00 Cell type 2-cell Measuring range 0 to 2000 µS/cm Line resistance 0.000 Ω

Temperature

Unit of measurement

C Temperature compensation ATC On Temperature coefficient 2.1% (Both process & calibration temp. coefficients) Temperature coefficient type Linear MTC (ATC Off) 25 oC (Both process & calibration temperature)

Controller Output

Controller type Limit control Relay status De-energized

Relay 1 (SP1)

Set point value 100 µS Relay function Low Hysteresis 20 µS On-delay time 0 seconds Off-delay time 0 seconds

Relay 2 (SP2)

Set point value 1900 µS Relay function High Hysteresis 20 µS On-delay time 0 seconds Off-delay time 0 seconds

Display

Backlight On

Instruction Manual αlpha-CON 560

7. List of Accessories

Controller Replacement and Accessories

Item Description Order Code

Alpha CON 560 Controller EC-PHCP0560 Conductivity cell, Epoxy body, Graphite sensor, w/3-wire Pt100, k = 0.1 EC-CONSEN89X Conductivity cell, Epoxy body, Graphite sensor, w/3-wire Pt100, k = 1.0 EC-CONSEN88X Conductivity 2 Cell type probe, 0.1 - 200μS; Cell constant, K=0.1 with

integrated Pt 100, Material SS316 and 25ft cable (open-ended) Conductivity 2 Cell type probe, up to 200 mS; Cell constant, K=1.0 with

integrated Pt 100, Material SS316 and 25ft cable (open-ended)

NOTE: Please contact your authorised distributor or dealer for the prices of extension measuring cables and other accessories such as tee joints, electrode assembly, and calibration solutions.

EC-CS10-0-1S

EC-CS10-1-0S

Instruction Manual αlpha-CON 560

8. Troubleshooting

Problem Solution

Power on, but no display a) Loose connections

Unstable conductivity reading

Oscillating temperature readings

Slow response a) Dirty / Oily probe a) Clean probe Blinking ATC

Blinking electrode

annunciator

Or (Conductivity)

Or/Ur (Temperature)

Cause

a) Ensure cables make good

b) Incorrect output voltage of

the power adaptor b) Use an power adaptor with

c) Cables not in correct polarity

(+ and – position) c) Re-wire loop cables with correct

a) Air bubbles in the probe a) Tap probe to remove air bubbles b) Dirty probe b) Clean probe and recalibrate c) Probe not deep enough in

sample

a) Electrical noise interference

a) No temperature probe

connection during ATC mode

a) Error in calibration b) Conductivity value of the

calibration standard is not within acceptable range

a) Conductivity reading is

above the selected measuring range

a) Temperature probe is not

connected when ATC enabled

b) Temperature value exceeds

above/ below the specified range

contact

specified output voltage

polarity

c) Ensure that the sample entirely

covers the sensor of the probe

a) Ensure shield wire is properly

connected to pin 7

a) Ensure temperature sensing

cable makes good contact

a) Ensure calibration standard

solution is not contaminated. Ensure electrode is clean

b) Ensure calibration standard is

within 10 to 100% of full-scale of the selected measuring range

a) Ensure correct conductivity

measurement range is selected

a) Ensure electrode makes good

contact with controller

b) Ensure temperature calibration is

done properly. Ensure process temperature is within the specified range

Instruction Manual αlpha-CON 560

9. General Information

9.1 Warranty

Eutech Instruments warrants this product to be free from significant deviations in material and workmanship for a period of one year from the date of purchase. If repair is necessary and not the result of abuse or misuse within the warranty period, please return by freight pre-paid and amendment will be made without any charge. Eutech Instrument Customer Service Dept. will determine if the product problem is due to deviations or customer abuse. Out-of-warranty products will be repaired on an exchange basis at cost.

Exclusions

The warranty on your instrument shall not apply to defects resulting from:

• Improper or inadequate maintenance by customer

• Unauthorized modification or misuse

• Operation outside of the environment specifications of the products

9.2 Return of Goods

Before returning goods for any reason whatsoever, the Customer Service Dept. has to be informed in advance. Items must be carefully packed to prevent damage during shipment, and insured against possible damage or loss. Eutech Instruments will not be responsible for any damage resulting from careless or insufficient packing.

Warning: Shipping damage as a result of inadequate packaging is the user's/distributor’s responsibility. Please follow the guidelines below before shipment.

9.3 Guidelines for Returning Unit for Repair

Use the original packaging material if possible when shipping the unit for repair. Otherwise wrap it with bubble pack and use a corrugated box for additional protection. Include a brief description of any faults suspected for the convenience of Customer Service Dept., if possible.

Instruction Manual αlpha-CON 560

10. Appendices

10.1 Appendix 2 Conductivity of various aqueous solutions

At Temperature 25 oC /77 oF

Solution Conductivity Resistivity

Ultra-pure Water 0.055 µS/cm 18.18 MΩ-cm

Power Plant Boiler Water 0.05 - 1 µS/cm 1 - 18 MΩ-cm

Distilled Water 0.5 µS/cm 2 MΩ-cm

De-ionized Water 0.1 - 10 µS/cm 0.1 - 10 MΩ-cm

De-mineralized Water 1 - 80 µS/cm 0.01 - 1 MΩ-cm

Mountain Water 10 µS/cm 0.1 MΩ-cm

Drinking Water 0.5 - 1 mS/cm 1 - 2 kΩ-cm

Waste-water 0.9 - 9 mS/cm 0.1 - 1 kΩ-cm

Potable Water Maximum 1.5 mS/cm 0.7 kΩ-cm

Brackish Water 1 - 80 mS/cm 0.01 - 1 kΩ-cm

Industrial Process Water 7 - 140 mS/cm Rarely stated

Ocean Water 53 mS/cm Rarely stated

Instruction Manual αlpha-CON 560

10.2 Appendix 2 Graphical Representation of the Function of Hysteresis

SP1 = 100 & Set to LO SP2 = 1900 & Set to HI

µS

HYSTERESIS BAND

100

SP1

µS

Default = 20

120

RELAY ON

RELAY OFF

µS

Default = 20

HYSTERESIS BAND

1880 1900

SP2

Forward Direction

Reverse Direction

µS

The relay of the conductivity controller activates when the set-point is reached (forward direction). In the reverse direction, it does not de-activate when the value reaches the set-point. Instead, it continues to be active till the value reaches the amount set by the Hysteresis band.

Example: You have set your high set point at 1900 µS and your hysteresis value at 20 µS. If your measured value overshoots 1900 µS, the controller’s relay activates. The actions of the external device will cause the solution’s conductivity to drop. The relay will deactivate, when the conductivity value drops below 1880 µS.

Instruction Manual αlpha-CON 560

10.3 Appendix 3 General Instructions Concerning Controller Setting

Control characteristic of controller used as limit value switch

MIN function MAX function

100% Yh

50%

-Xw

SP 2

Xp = 0

+Xw

Instruction Manual αlpha-CON 560

10.4 Appendix 4 - Abbreviations Used in LCD

Abbreviation Description

AtC Automatic Temperature Compensation CAL Calibration mode C.ºC Calibration temperature CdAt Electrode properties CEL Cell CnFg Configuration Cntr Controller C.tC Temperature coefficient for calibration liquid dEF Default values dEEn De-energized En Energized FCt Factory (defaults) HI High limit HOLD Relay functions are hold HyS Hysteresis K Cell constant L.Ad Linear resistance L.Ct Limit control Lin Linear LitE Backlight LO Low limit MEAS Measurement mode OF.d Off delay On.d On delay Or Reading is over range P.ºC Process temperature P.tC Temperature coefficient for process liquid PUr Pure water rAng Range Set Setting SETUP Setup mode SP1 1 Set point SP2 2 Set point tC Temperature Coefficient tyP Type Ur Reading is under range

NOTES

For more information on Eutech Instruments’ products, contact your nearest distributor or visit our website listed below:

Eutech Instruments Pte Ltd. Distributed by: Blk 55, Ayer Rajah Crescent, #04-16/24 Singapore 139949 Tel: (65) 6778 6876 Fax: (65) 6773 0836 E-mail: marketing@eutechinst.com Web-site: www.eutechinst.com

Eutech Instruments αlpha-CON560 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1.1 Before You Begin

1.2 Intended Use

1.3 Safety Instructions

1.4 Taking Out of Service / Correct Disposal of the Unit

2. Getting Started

2.1 Description of Instrument

2.2 Measurement and Control System

2.3 Connecting Peripherals

2.3.1 Connection Terminals

2.3.2 Switching Between Pt100 & Pt1000 Temperature Sensors

2.3.3 Connecting Conductivity Probe

2.3.4 Connecting Temperature Probe

2.4 Installation

2.4.1 Mechanical Dimensions

2.4.2 Wall Mount

2.4.3 Panel Mount

2.5 Display & Keypad

2.5.1 Display Overview

2.5.2 Key Functions

3. Operation

3.1 Measurement mode

3.2 Menu Overview

4. Calibration Mode

4.1 About Calibration

4.2 Calibration

5. Setup Mode

5.1 Enter Setup mode

5.2 Temperature Coefficient Settings

5.3 Temperature Settings

5.4 Relay 1/Relay 2 Settings

5.5 Controller Settings

5.6 Measuring Range Settings

5.7 Configuration Settings

5.8 Viewing Electrode Properties

6. Technical Specifications

7. List of Accessories

8. Troubleshooting

9. General Information

9.1 Warranty

9.2 Return of Goods

9.3 Guidelines for Returning Unit for Repair

10. Appendices

10.1 Appendix 2 Conductivity of various aqueous solutions

10.2 Appendix 2 Graphical Representation of the Function of Hysteresis

10.3 Appendix 3 General Instructions Concerning Controller Setting

10.4 Appendix 4 - Abbreviations Used in LCD