Eutech Instruments CON 200 User Manual

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Instruction Manual

αlpha CON 200

1/8 DIN Conductivity Controller with Temperature display and Transmitter

Technology Made Easy ...

68X276103 rev 1 09/2003

PREFACE

This manual serves to explain the use of the αlpha CON 200 controller/transmitter. This manual functions in two ways: first, as a step- by-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© Rev. 1 09/2003

Eutech Instruments Pte Ltd. All rights reserved.

TABLE OF CONTENTS

1

INTRODUCTION

1

2

SAFETY INFORMATION

2

3

OVERVIEW

3

 

3.1

FRONT PANEL

3

 

3.2

BACK PANEL

4

 

3.3

WIRING

5

 

3.4

PANEL-MOUNTING THE CONTROLLER

6

4

MEASUREMENT MODE

7

5

PASSWORD

8

6

CONDUCTIVITY CALIBRATION

10

7

TEMPERATURE CALIBRATION

12

8

SETUP MODE

13

 

8.1

GENERAL INFORMATION

13

 

8.2

SETUP MODE OVERVIEW

14

 

8.3

SET POINT 1 – P1.0

15

 

8.4

SET POINT 2 – P2.0

17

 

8.5

MEASUREMENT RANGE SELECTION – P3.0

19

 

8.6

CONFIGURE TEMPERATURE SETTINGS – P4.0

20

 

8.7

VIEWING CONDUCTIVITY CALIBRATION DATA – P5.0

21

 

8.8

VIEWING CONDUCTIVITY/ TEMPERATURE ELECTRODE DATA – P6.0

22

 

8.9

CONTROLLER RESET – P7.0

23

9

RELAYS

24

10

TRANSMITTER FUNCTION

24

11

SPECIFICATIONS

25

12

ACCESSORIES

26

13

GENERAL INFORMATION

29

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:

Removable terminal blocks for easy connections;

Two mounting brackets for easy panel mounting;

Some features of this controller are:

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

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

1

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

Eutech Instruments CON 200 User Manual

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

 

Toggle between Conductivity and temperature display

10. ENTER

 

Confirm changes or to enter into further levels of sub-menu

11. ▲(increment)

 

Use during calibration and setup modes to increment values.

 

 

 

Press ▲/▼keys together to escape to Measurement mode

11. ▼(decrement)

Use during calibration and setup modes to decrease values.

 

 

 

Press ▲/▼keys together to escape to Measurement mode

12. LED Display

 

14 segment LED display

8.8.8.8.

3

3.2 Back Panel

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

21

20

 

 

 

 

19

18

17

16

15

14

13

 

 

 

 

 

Caution

 

 

NC

NC

+ CON

- CON GND

IN

 

SENSE

 

 

 

 

 

 

 

 

 

- 20mA

20mA

 

RELAY1

 

 

RELAY2

PT100

 

 

+ 4

- 4 -

 

 

 

 

 

 

 

NC

 

NC

N

L

 

 

 

 

 

 

 

 

 

 

 

 

 

12

11

10

9

8

7

6

5

 

4

 

3

 

2

1

1.VAC live wire

2.VAC neutral wire

3.unused

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

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

14.Pt 100 connection: input

15.Pt 100 connection: ground

16.Conductivity positive terminal

17.Conductivity negative terminal

18.unused

19.unused

20.VAC protective ground wire

21.VAC protective ground wire

4

3.3 Wiring

Caution: Ensure electrical mains are disconnected before proceeding.

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

VAC live wire = 1

VAC neutral wire = 2

VAC protective ground wire = 20 OR 21

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

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 reading, the µS and ‘MEAS’ annunciators lights.

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.

5

3.4 Panel-mounting the controller

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.

Wallp

Catch

Threaded

 

 

100

 

 

approx.

 

Catch

Threadedrod

 

 

.xorppa02.451

 

TOP VIEW

 

 

SIDE VIEW

6

4 MEASUREMENT MODE

Press MODE to toggle between:

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 temperature (for MTC). The oC 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.

7

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