Instruction Manual lpha-CON 1000 Conductivity Controller/Transmitter Technology Made Easy ... 68X216802 rev 3, 11/04 This manual serves to explain the use of the lpha-CON1000 series Conductivity 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 handy reference guide. This instruction manual is written to cover as many anticipated applications of the lpha-CON1000 Conductivity controller/transmitter. 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 Pte Ltd. Eutech Instruments cannot accept any responsibility for damage or malfunction of the unit due to improper use of the instrument. Copyright ©1998 Rev 3 11/04 All rights reserved. EUTECH INSTRUMENTS PTE LTD Blk 55 Ayer Rajah Crescent, #04-16/24, Singapore 139 949. Tel: (65) 6778 6876; Fax: (65) 6773 0836 e-mail: marketing@eutechinst.com ; Web Site: http://www.eutechinst.com Preface 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. TABLE OF CONTENTS 1 1.1 1.2 INTRODUCTION ................................................................................ 1 Description of Unit ..............................................................................................1 Applications .........................................................................................................1 2 2.1 2.2 ASSEMBLY AND INSTALLATION ................................................... 2 Measurement and Control System.....................................................................2 Unit Dimensions ..................................................................................................2 3 3.1 3.2 ELECTRICAL CONNECTION............................................................ 3 Connection Diagram ...........................................................................................3 Back Panel ...........................................................................................................4 4 4.1 OVERVIEW ........................................................................................ 5 Keypad and Display ............................................................................................5 4.1.1 4.1.2 4.2 Keypad.......................................................................................... 5 Display.......................................................................................... 5 How to view operating parameters without access to change them: 6 Function Groups .................................................................................................6 4.2.1 4.3 Control Concept ..................................................................................................7 5 5.1 MEASUREMENT ............................................................................... 8 Display in Measurement mode...........................................................................8 5.1.1 5.1.2 5.2 Check electrode performance ....................................................... 8 Checking set points....................................................................... 8 How to enter and change parameters in Calibration mode ........... 9 How to enter and change parameters in Advanced Setup mode... 9 Security Codes .....................................................................................................9 5.2.1 5.2.2 6 6.1 CALIBRATION MODE ..................................................................... 11 Conductivity Calibration..................................................................................11 7 7.1 7.2 7.3 ADVANCED SET-UP MODE ........................................................... 12 Temperature Coefficient sub-function ............................................................12 7.1.1 7.2.1 7.3.1 7.3.2 7.3.3 7.3.4 7.3.5 7.3.6 Selecting Pure-water or Linear Temperature Coefficient........... 12 Setting Manual Temperature Compensation .............................. 13 Entering the Set point 1 (or Set point 2) sub-function ................ 14 Selecting the set point values...................................................... 14 Choosing High or Low set points ............................................... 15 Selecting a hysteresis (dead band) value .................................... 15 Setting an on-delay time lag ....................................................... 16 Setting an off-delay time lag ...................................................... 16 Temperature Calibration (ATC mode only) ...................................................13 Control Relay A/Control Relay B (SP1/SP2) sub-function ............................14 7.4 Controller (Cntr) sub-function.........................................................................17 7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 7.5 7.6 Entering the Controller sub-function .......................................... 17 Choosing the controller type (limit or proportional)................... 18 Choosing Break/Make Contact Relay Type ............................... 18 Selecting Proportional Range Value, Xp.................................... 19 Maximum Pulse Length (tPL) or Maximum Frequency (FPF) .. 19 Selecting the Measuring Range sub-function ............................. 20 Entering current output sub-function.......................................... 21 Choosing the output type............................................................ 21 Selecting Conductivity value at 0(4)mA .................................... 21 Selecting Conductivity value at 20mA ....................................... 22 Entering the Configuration sub-function .................................... 22 Selecting Filter Function and the Alarm or Wash Function ....... 22 Selecting the alarm time lag ....................................................... 23 Selecting steady or pulse contact for the alarm relay ................. 23 Wash contact (if the relay 3 is set to Wash) ............................... 23 Input Line Resistance Adjust...................................................... 24 Reverting to factory default settings........................................... 24 Entering Calibration mode from Advanced Set-up mode........... 24 Measurement Range sub-function ...................................................................20 7.5.1 7.6.1 7.6.2 7.6.3 7.6.4 7.7 Current Output (rng) sub-function .................................................................21 Configuration (ConF) sub-function .................................................................22 7.7.1 7.7.2 7.7.3 7.7.4 7.7.5 7.7.6 7.7.7 7.8 Calibration (CAL) sub-function.......................................................................24 7.8.1 8 8.1 8.2 AUTO/MANUAL MODE ................................................................... 25 Auto mode (mode after switch-on)...................................................................25 Manual mode .....................................................................................................25 9 10 11 TECHNICAL SPECIFICATIONS ..................................................... 26 ACCESSORIES ............................................................................... 27 GENERAL INFORMATION.............................................................. 27 11.1 11.2 11.3 11.4 Warranty .......................................................................................................27 Packaging ......................................................................................................27 Return of Goods............................................................................................27 Guidelines for Returning Unit for Repair...................................................28 Appendix 1 ­ Jumper Positions ...................................................................28 Appendix 2 ­ Measurement Ranges available in the Controller...............29 Appendix 3 ­ Conductivity at Related Temperature Coefficients (25 °C)29 Appendix 4 ­ Conductivity of Various Aqueous Solutions at 25 C.........31 Appendix 5 - Simple Explanation on the Function of Hysteresis..............32 Appendix 6 ­ General Instructions Concerning Controller Setting .........33 12 APPENDICES .................................................................................. 28 12.1 12.2 12.3 12.4 12.5 12.6 1 1.1 INTRODUCTION Description of Unit Thank you for purchasing the ¼ DIN alpha-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 oC. Separate 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. 1 Operating Instructions lpha-CON1000 2 2.1 ASSEMBLY AND INSTALLATION Measurement and Control System A typical measurement system consists of: · a lpha-CON1000 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 lpha-CON1000 Controller lpha-CON1000 Pt100/Pt1000 Temperature Sensor Alarm / Siren System Process Assembly with Electrode Power Mains (220/110 VAC) 2.2 Unit Dimensions Flat Gasket (1mm) (To be Inserted By Customer) Note: The Taped Corners Have to Be On Top 92 + 0.5 92 56 32 92 + 0.5 96 max. 45 Mounting Cut-Out max. 175 The field-tested control panel housing is 96 x 96 mm; with protection class IP 54 (front). 2 Operating Instructions lpha-CON1000 3 ELECTRICAL CONNECTION ENSURE that the power cable is physically separated from the power supply. 3.1 Connection Diagram Cond. S/ V 18 19 20 21 22 PE/S Pt 100 Signal Input Conductivity Relay 2 Hold Input Signal Output Power Mains Relay 1 Alarm Cond. mA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + 17 PE/S AC: L N PE * ) indicated contact positions are for currentless or no error conditions 3 Operating Instructions lpha-CON1000 3.2 Back Panel The back panel consists of two connecto ...