Thermo Fisher Scientific COND 1000 User Manual

Alpha COND 1000

Controller/Transmitter

uS/cm / mS/cm / ºC

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Preface

This manual serves to explain the use of the Alpha COND 1000 process controller/transmitter. 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 hand y reference guide. This instruction manual is written to cover as many anticipated applications of the Alpha COND 1000 process controller/transmitter. If you have doubts in the use of the instrument, please do not hesitate to contact the nearest Authorized Distributor.

Thermo Scientific will not accept any responsibility for damage or malfunction of the unit due to improper use of the instrument.

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 Thermo Scientific.

Safety Information

The 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.

TABLE OF CONTENTS

INTRODUCTION................................................................................1

1.1 Description of Unit.....................................................................................1

1.2 Applications ..............................................................................................1

2 ASSEMBLY AND INSTALLATION ...................................................2

2.1 Measurement and Control System............................................................2

2.2 Unit Dimensions........................................ Error! Bookmark not defined.

3 ELECTRICAL CONNECTION............................................................3

3.1 Connection Diagram.................................................................................3

3.2 Back Panel................................................................................................4

4 OVERVIEW ........................................................................................5

4.1 Keypad and Display..................................................................................5

4.1.1 Keypad ................................................................................5

4.1.2 Display.................................................................................5

4.2 Function Groups .......................................................................................6

4.2.1 How to view operating parameters without access to

change them:......................................................................................6

4.3 Control Concept........................................................................................7

5 MEASUREMENT ...............................................................................8

5.1 Display in Measurement mode..................................................................8

5.1.1 Check electrode performance.............................................8

5.1.2 Checking set points.............................................................8

5.2 Security Codes..........................................................................................9

5.2.1 How to enter and change parameters in Calibration mode.9

5.2.2 How to enter and change parameters in Advanced Setup mode 9

6 CALIBRATION MODE.....................................................................11

6.1 Conductivity Calibration..........................................................................11

7 ADVANCED SET-UP MODE...........................................................13

7.1 Temperature Coefficient sub-function.....................................................13

7.1.1 Selecting Pure-water or Linear Temperature Coefficient..13

7.2 Temperature Calibration (ATC mode only).............................................14

7.2.1 Setting Manual Temperature Compensation ....................14

7.3 Control Relay A/Control Relay B (SP1/SP2) sub-function ......................15

7.3.1 Entering the Set point 1 (or Set point 2) sub-function.......15

7.3.2 Selecting the set point values............................................15

7.3.3 Choosing High or Low set points.......................................16

7.3.4 Selecting a hysteresis (dead band) value .........................16

7.3.5 Setting an on-delay time lag..............................................17

7.3.6 Setting an off-delay time lag..............................................17

7.4 Controller (Cntr) sub-function..................................................................18

7.4.1

Entering the Controller sub-function..................................18

7.4.2 Choosing the controller type (limit or proportional) ...........19

7.4.3 Choosing Break/Make Contact Relay Type......................19

7.4.4 Selecting Proportional Range Value, Xp...........................20

7.4.5 Maximum Pulse Length (tPL) or Maximum Frequency (FPF) 20

7.5 Measurement Range sub-function..........................................................21

7.5.1 Selecting the Measuring Range sub-function ...................21

7.6 Current Output (rng) sub-function...........................................................22

7.6.1 Entering current output sub-function.................................22

7.6.2 Choosing the output type ..................................................22

7.6.3 Selecting Conductivity value at 0(4)mA.............................22

7.6.4 Selecting Conductivity value at 20mA...............................23

7.7 Configuration (ConF) sub-function..........................................................23

7.7.1 Entering the Configuration sub-function............................23

7.7.2 Selecting Filter Function and the Alarm or Wash Function 23

7.7.3 Selecting the alarm time lag..............................................24

7.7.4 Selecting steady or pulse contact for the alarm relay .......24

7.7.5 Wash contact (if the relay 3 is set to Wash)......................25

7.7.6 Input Line Resistance Adjust.............................................25

7.7.7 Reverting to factory default settings..................................25

7.8 Calibration (CAL) sub-function............................................................26

7.8.1 Entering Calibration mode from Advanced Set-up mode..26

8 AUTO/MANUAL MODE...................................................................27

8.1 Auto mode (mode after switch-on)..........................................................27

8.2 Manual mode..........................................................................................27

9 TECHNICAL SPECIFICATIONS .....................................................28

10 ACCESSORIES ...............................................................................29

11 GENERAL INFORMATION..............................................................29

11.1 Warranty .............................................................................................29

11.2 Packaging...........................................................................................29

11.3 Return of Goods..................................................................................29

11.4 Guidelines for Returning Unit for Repair .............................................30

12 APPENDICES ..................................................................................30

12.1 Appendix 1 – Jumper Positions...........................................................30

12.2 Appendix 2 – Measurement Ranges available in the Controller..........31

12.3 Appendix 3 – Conductivity at Related Temperature Coefficients (25 °C) 31

12.4 Appendix 4 – Conductivity of Various Aqueous Solutions at 25 C....33

12.5 Appendix 5 - Simple Explanation on the Function of Hysteresis.........34

12.6 Appendix 6 – General Instructions Concerning Controller Setting......35

1 INTRODUCTION

1.1 Description of Unit

Thank you for purchasing the ¼ DIN Alpha COND 1000 series Conductivity process controllers. This unit is used for measuring the Conductivity of a solution, either in micro-Siemens or milli-Siemens, one at a time, and the operational mode is switchable from the menu. You can use this unit to measure Conductivity with limit control. This controller has many user-friendly and safety features which include:

• Menu-driven program that simplifies set-up

• Ten ranges of Conductivity measurements-software selectable (Appendix

2).

• Built-in memory backup to ensure that calibration data and other information are not erased if power supply fails

• Automatic temperature compensation (ATC) with Pt100 or Pt 1000

• Manual temperature compensation with independent setting for

calibration and process temperature

• Temperature coefficient variable between 0.00 to 10.00 % per pure water compensation curve stored in memory. Reference temperature at 25oC.

• 0 to 1999 second time delay adjustment on all relays – minimise false alarms

• Separately adjustable high and low set point hysteresis (dead bands) prevents chattering of relays around the set points. Selectable Filter function stabilises rapid measurement changes

• Four operating modes: limit, display monitor , proportional pulse length or proportional pulse frequency control.

• Large dual display LCD for easy reading with clear multiple annunciators, alarm status and operational message annunciators

• Two switching contacts as set-point triggering relays and an alarm output relay

• Separate alarm relay alerts you when set points have exceeded the limits and if the Pt100/Pt1000 wires are broken or disconnected during the ATC function

• Hold function freezes output current (0/4...20mA) and releases control relays

• LED indicators signal control activities to monitor controller status from a distance

• Protection against electromagnetic interference - galvanically isolated

0/4 - 20mA output provides safety for data logging and control purposes

1.2 Applications

Use this controller in panel mounted enclosures for applications in water treatment and demineralization, waste water treatment and neutralization processes.

C. Separate

Operating Instructions Thermo Scientific Alpha COND 1000

)

2 ASSEMBLY AND INSTALLATION

2.1 Measurement and Control System

A typical measurement system consists of:

• a Alpha COND 1000 process controller

• a suitable Conductivity electrode with the appropriate Cell constant and

integrated temperature sensor Pt 1000 or Pt 100,

• an immersion, flow or process assembly

• a final control element such as pump or valve and

• a chart recorder.

Flow Assembly

to Dosing Pumps

Chart Recorder

Power Mains

(220/110 VAC)

Alarm / Siren

System

Pt100/Pt1000

Temperature Sensor

Process Assembly

with Electrode

Alpha COND 1000

Alpha-CON1000 Controller

lpha-CON1000

2.2 Unit Dimensions

The field-tested control panel housing is 96 x 96 mm; with protection class IP 54 (front).

92 + 0.5

asket(1mm

Flat

(Tobe Inserted By Customer)

Note: The Taped Corners Have to Be On Top

Mounting Cut-Out

max. 175

max. 45

Operating Instructions Thermo Scientific Alpha COND 1000

3 ELECTRICAL CONNECTION

ENSURE that the power cable is physically separated from the power

supply.

3.1 Connection Diagram

Cond.

Power Mains

18 19 20

PE/S

Pt 100

Relay 1

PEAC: NL

* ) indicated contact positions are for currentless or no error conditions

Relay 2

78 9

21 22

Signal Input Conductivity

Alarm

12 13

PE/S

Signal OutputHold Input

Cond.

151715 16

Operating Instructions Thermo Scientific Alpha COND 1000

3.2 Back Panel

The back panel consists of two connectors. The first connector is the 17-way PCB edge connector and the other is the 5-way connector.

ENSURE that the power cable is physically separated from the power supply.

Connection for the 17-way screw terminals (from left to right):

1. AC mains live wire 10. Alarm relay resting position (NO)

2. AC mains neutral wire 11. Alarm relay common

3. AC mains protective earth wire 12. Alarm relay working position (NC)

4. Low set relay resting position (NC) 13. Hold function switch terminal 1

5. Low set relay common 14. Hold function switch terminal 2

6. Low set relay working position (NO) 15. No connection

7. High set relay resting position (NC) 16. 0/4 - 20 mA for -ve connection

8. High set relay common 17. 0/4 - 20 mA for +ve connection

9. High set relay working position (NO)

Connections for the 5-way screw terminals:

18. Pt1000/Pt100 lead 1 terminal

19. Pt1000/Pt100 sense lead terminal

20. Pt1000/Pt100 lead 2 terminal

21. Conductivity lead 1

22. Conductivity lead 2

cell

ALARM

HOLD

FUSE 250VAC

(F)

63mA

N PE

RELAY1

Pt100/

Pt1000

RELAY2

IMPORTANT: The Alarm relay functions as an “Active Low” device i.e. it switches OFF under Alarm condition. Therefore the Alarm display device should be connected to the ‘NC’ contacts of the relay.

Operating Instructions Thermo Scientific Alpha COND 1000

4 OVERVIEW

4.1 Keypad and Display

4.1.1 Keypad

•

Perform rapid calibration Allows entry to Set up mode

•

• Select individual functions within the function group of Set up mode

• Store input data in the Set up mode

• Start calibration in the calibration mode

•

Select various function groups in the Set up mode.

• Set parameters and numerical values in sub functions of Set up mode

If pressed continuously, the setting speed increases

• Control the relays in the MANUAL function

• Return to the Measurement mode when both keys are pressed

together

Switch between AUTO and MANUAL relay operation using a code

•

Display limit set-point values for the switch contacts in AUTO relay

operation mode

• Switch between RELAY A and RELAY B in MANUAL relay operation

mode

4.1.2 Display

The LCD display features two numerical displays that sho w status messages and measured values for easy, quick reference. The display provides short-text information for setting parameters and configuration.

HOLD

SETUP MEAS CAL

READY

-8.8.8.8

-1.8.8.8

Display for RELAY A/B. Green LED indicates measured value within

•

Alarm display if limit value overshoot or the ATC connection is broken.

limit while RED LED indicates measured value outside limit.

• HOLD: Relay position and current output are frozen

• SETUP: Set-up mode of function groups

• MEAS: Measurement mode

• CAL: Calibration mode of Conductivity

• READY: Comes on after a successful

calibration

• ATC: Comes on in the ATC mode. Disappears in the Manual temperature Compensation mode. “ATC” flashes if the temperature probe is faulty in its ATC mode

• 8: Indicates the measurement range selected. Refer to Appendix 2.

ATC

Operating Instructions Thermo Scientific Alpha COND 1000

4.2 Function Groups

The main function and sub-function groups are organised in a matrix format for configuration and selection of parameters. The main function groups are:

1) Temperature Coefficient settings (

2) Temperature Measurement / compensation settings (SEt

3) Control relay 1 configuration (SP1). See Section 7.3.

4) Control relay 2 configuration (

5) Control type (Cntr). See Section 7.4.

6) Current output (rng). See Sections 7.5 & 7.6.

7) Configuration (

8) Calibration (CAL Con). See Sections 6 & 7.8.

HOLD SETUP HOLD SETUP HOLD HOLDSETUP SETUP

ConF). See Section 7.7.

tc). See Section 7.1.

SP2). See Section 7.3.

C). See Section 7.2.

Sp1 Sp2

HOLD SETUP

HOLD SETUP HOLD SETUP

HOLD SETUP

Cal

The set-up parameters can be viewed or changed by entering a security code. See Section 5.2 for security code information.

4.2.1 How to view operating parameters without access to change them:

a) Press the ENTER key. The display will prompt the

user to enter a security code (S.Cd). Leave the security code at “000” (do not enter a security code).

b) Press ENTER key again. This allows you only to

view (not change) any sub-functions’ settings.

c) Press the ▲ or ▼ keys to scroll through the sub-

functions. d) Press the ENTER key at a particular sub-function to view in detail. e) Press the ENTER key to return to the sub-function menu. f) Press the ▲ or ▼ keys simultaneously (as an Escape key) at any time to return

to the Measurement mode. Note: To simplify operations, the controller will not display parameters that are not

relevant to a particular sub-function. For example: If the user set the controller for Limit control, it will not display pulse length/frequency settings.

000

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