EUTECH INSTRUMENTS ALPHA CON 200 CONDUCTIVITY CONTROLLERTRANSMITTER, Alpha CON 200 Instruction Manual

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Instruction Manual

α

lpha CON 200

1/8 DIN Conductivity Controller with

Temperature display and Transmitter

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68X276103 rev 0
04/2002

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PREFACE

This manual serves to explain the use of the αlpha CON 200

controller/transmitter. This manual functions in two ways: first, as a step­by-step guide to help you operate the meter; second, it serves as a handy
reference guide.

This manual is written to cover as many anticipated applications of the

αlpha CON 200 controller/transmitter as possible. If there are doubts in
the use of the αlpha CON 200 controller/transmitter, do not hesitate to

contact the nearest Eutech Instruments Authorized Distributor.

Eutech Instruments cannot accept any responsibility for damage or
malfunction to the controller/transmitter caused by improper use of the
instrument. Remember to fill in the guarantee card and mail it mail to your
Authorized Distributor or Eutech Instruments Pte Ltd.

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

Copyright© Apr 2002 Eutech Instruments Pte Ltd. All rights reserved.

TABLE OF CONTENTS

1 INTRODUCTION 1

2 SAFETY INFORMATION 2

3 OVERVIEW 3

3.1 F

3.2 B

3.3 W

3.4 P

4 MEASUREMENT MODE 7

5 PASSWORD 8

6 CONDUCTIVITY CALIBRATION 10

7 TEMPERATURE CALIBRATION 12

8 SETUP MODE 13

8.1 G

8.2 S

RONT PANEL

ACK PANEL

IRING

ANEL-MOUNTING THE CONTROLLER

ENERAL INFORMATION

ETUP MODE OVERVIEW

3

4

5

6

13

14

8.3 S

8.4 S

8.5 M

8.6 C

8.7 V

8.8 V

8.9 C

9 RELAYS 24

10 TRANSMITTER FUNCTION 24

11 SPECIFICATIONS 25

12 ACCESSORIES 26

13 GENERAL INFORMATION 29

ET POINT 1 –

ET POINT 2 –

EASUREMENT RANGE SELECTION –

ONFIGURE TEMPERATURE SETTINGS –

IEWING CONDUCTIVITY CALIBRATION DATA –

IEWING CONDUCTIVITY/ TEMPERATURE ELECTRODE DATA –

ONTROLLER RESET –

P1.0 15

P2.0 17

P3.0 19

P4.0 20

P5.0 21

P7.0 23

P6.0 22

1 INTRODUCTION

Thank you for purchasing a CON 200 ⅛ DIN Conductivity Controller. This
controller is part of a series of quality process controllers available from Eutech
Instruments. These sturdy, economical conductivity controllers are designed with
the features and reliability of a much more expensive instrument.

Your controller includes:

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Some features of this controller are:

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Removable terminal blocks for easy connections;

Two mounting brackets for easy panel mounting;

Two set point, two SPDT relay operation

Scrolling, 14-segment LED guides user easily through setup functions

Reliable power supply from 85 to 260 V AC, 50/60 Hz or DC withstands
voltage fluctuations

Push-button operation from the front panel

Single-point calibration for each individual range

Adjustable hysteresis band prevents rapid contact switching around set-point

Selectable automatic or manual temperature compensation

Two-level password protection

Removable terminal strips for quick and easy connections

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Built-in memory backup retains setup even if power fails, and lets you
configure unit before installation

Isolated 4-20 mA output for remote monitoring or hard copy recording

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2 SAFETY INFORMATION

The Eutech Controller/Transmitter shall be installed and operated only in the
manner specified in the Instruction manual. Only skilled, trained or authorized
person should carry out installation, setup and operation of the instrument.

Before powering up the unit, make sure that power source it is connected to, is as
specified in the top label. Failure to do so may result in a permanent damage to the
unit.

The unit has live and exposed parts inside. If it has to be opened, make sure that
the power to the unit is off and disconnected.

The unit is Fuse protected. In the event the fuse has to be replaced, use only those
as specified in the manual.

The degree of protection against electric shock will be achieved only by
observance of the corresponding installation rules.

2

3 OVERVIEW

3.1 Front Panel

The front panel consists of a 4-digit LED display, 8 LED annunciators and 4 keys.

Annunciators

1. REL 1 Displayed when Relay 1 is activated

2. REL 2 Displayed when Relay 2 is activated

3. MEAS Displayed in measurement mode

4. CAL Displayed in calibration mode

5. SETUP Displayed in setup mode

6. µS Displayed when measurement range in micro-Siemens / cm

7. oC Unit of the displayed parameter (temperature)

8. mS Displayed when measurement range in milli-Siemens / cm

Keys

9. MODE

10. ENTER

11. ▲(

11. ▼(decrement)

12. LED Display 14 segment LED display

increment)

Toggle between Conductivity and temperature display
Confirm changes or to enter into further levels of sub-menu
Use during calibration and setup modes to increment values.

Press

▲/▼

Use during calibration and setup modes to decrease values.
Press

▲/▼

keys together to escape to Measurement mode

keys together to escape to Measurement mode

8.8.8.8.

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3.2 Back Panel

The back panel consists of three different connectors that can be used with
removable terminal blocks (included):

19 18 17 16 15 14 13

12 11 10 9 8 7 6 5 4 3 2 1

1. VAC live wire

2. VAC neutral wire

3. VAC protective ground wire

4. unused

5. Relay 2 deactivated position (normally closed)

6. Relay 2 center pole

7. Relay 2 activated position (normally open)

8. Relay 1 deactivated position (normally closed)

9. Relay 1 center pole

10. Relay 1 activated position (normally open)

11. 4-20 mA connection, negative

12. 4-20 mA connection, positive

Pt 100 connection: sense (jumper to terminal 14 if using 2-wire RTD)

13.

14. Pt 100 connection: input

15. Pt 100 connection: ground

16. Conductivity positive terminal

17. Conductivity negative terminal

18. unused

19. unused

4

3.3 Wiring

Caution: Ensure electrical mains is disconnected before proceeding.

1. Connect the power supply to the three-pin terminal block

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alpha CON 200 controller accepts voltages from 85 to 260 VAC, 50/60 Hz or DC.

2. Connect the Pt 100 leads to terminals 13 to 15 of the seven-pin terminal block.

NOTE: CON 200 is factory set for Automatic temperature compensation. MTC can
be selected in Program P4.0.

3. Power on the controller. The display automatically shows the Conductivity

NOTE: In the event Pt 100 is not connected or the connection is broken in the ATC
mode, the display flashes ‘OR’ to alert you.

VAC live wire = 1

VAC neutral wire = 2

VAC protective ground wire = 3

Either wire can be connected to either terminal. Terminals 13 and 14 must be
shunted unless using a 3-wire RTD.

reading, the µS and ‘MEAS’ annunciators lights.

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3.4 Panel-mounting the controller

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d

The supplied mounting hardware allows surface mounting to all panels and
protective enclosures. Mounting cut-out size is 91 x 45 mm.

To attach the mounting to the controller:

1. Align the catch to the side of the controller, and insert threaded rods through

catch.

2. Screw the threaded-rod through the catch in a clock-wise direction. Tighten

until the catch holds the controller firmly against the back of the panel or
protective housing. Repeat on the other side.

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SIDE VIEW

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4 MEASUREMENT MODE

Press MODE to toggle between:

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Conductivity measurement mode and

Temperature measurement mode

Conductivity Measurement Mode

The controller displays the selected Conductivity range number, R X (X ranges
from 1 to 8), for 2 seconds before displaying the Conductivity measurement.

Conductivity Range Range No., R Resolution Cell Constant

0.00 – 20.00 µS/cm 1 0.01 µS/cm 0.1

0.0 – 200.0 µS/cm 2 0.1 µS/cm 0.1

0.0 – 200.0 µS/cm 3 0.1 µS/cm 1
0 – 2000 µS/cm 4 1 µS/cm 1

0.00 – 10.00 mS/cm 5 0.01 mS/cm 1

0.00 – 20.00 mS/cm 6 0.01 mS/cm 1

0.0 – 200.0 mS/cm 7 0.1 mS/cm 1

0.0 – 200.0 mS/cm 8 0.1 mS/cm 10

Temperature Measurement mode

Press MODE key once to view the temperature measurement. The display shows
ATC (Automatic Temperature Compensation) or MTC (Manual Temperature
Compensation), then the current measured temperature (for ATC) or the set

o

temperature (for MTC). The

C annunciator lights when you are measuring

temperature.

NOTE: After pressing the MODE key to display Temperature, if there is no further
key-press, the Controller will automatically revert to Conductivity Measurement
mode after about 30 seconds.

See Setup program P4.0 for further instructions.

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