Instruction Manual lpha-RES1000 Resistivity Controller/Transmitter Technology Made Easy ... 68X216807 rev 3 12/04 This instruction manual serves to explain the use of the lpha-RES1000 series Resistivity 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-RES1000 Resistivity 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 ©1999 Rev 3 12/04 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 Operating Instructions lpha-RES1000 TABLE OF CONTENTS 1 INTRODUCTION .................................................................................................1 1.1 1.2 2 DESCRIPTION OF UNIT ....................................................................................1 APPLICATIONS................................................................................................1 ASSEMBLY AND INSTALLATION.....................................................................2 2.1 2.2 MEASUREMENT AND CONTROL SYSTEM............................................................2 UNIT DIMENSIONS ..........................................................................................2 3 ELECTRICAL CONNECTION.............................................................................3 3.1 3.2 CONNECTION DIAGRAM...................................................................................3 BACK PANEL..................................................................................................4 4 OVERVIEW .........................................................................................................5 4.1 4.1.1 4.1.2 KEYPAD AND DISPLAY.....................................................................................5 Keypad .............................................................................................................. 5 Display ............................................................................................................... 5 4.2 4.3 5 FUNCTION GROUPS ........................................................................................6 CONTROL CONCEPT .......................................................................................7 MEASUREMENT ................................................................................................8 5.1 5.1.1 5.1.2 DISPLAY IN MEASUREMENT MODE ....................................................................8 Check electrode performance ........................................................................... 8 Checking set points ........................................................................................... 8 5.2 5.2.1 5.2.2 SECURITY CODES...........................................................................................8 How to enter and change parameters in Calibration mode ............................... 8 How to enter and change parameters in Advanced Setup mode ...................... 9 6 CALIBRATION MODE ......................................................................................10 6.1 RESISTIVITY CALIBRATION .............................................................................10 7 ADVANCED SET-UP MODE ............................................................................11 7.1 7.1.1 TEMPERATURE COEFFICIENT SUB-FUNCTION ...................................................11 Selecting Pure-water or Linear Temperature Coefficient ................................ 11 7.2 7.2.1 TEMPERATURE CALIBRATION (ATC MODE ONLY) ..............................................12 Setting manual temperature compensation..................................................... 12 7.3 7.3.1 7.3.2 7.3.3 7.3.4 m) 7.3.5 7.3.6 CONTROL RELAY A/CONTROL RELAY B (SP1/SP2) SUB-FUNCTION ..................13 Entering the Set point 1 (Set point 2) sub-function.......................................... 13 Selecting the set point values.......................................................................... 13 Choosing High or Low set points..................................................................... 13 Selecting a hysteresis (dead band) value (0.000 to 0.200 m or 0.00 to 2.00 14 Setting an on-delay time lag ............................................................................ 14 Setting an off-delay time lag ............................................................................ 15 7.4 7.4.1 7.4.2 7.4.3 7.4.4 CONTROLLER (CNTR) SUB-FUNCTION .............................................................15 Entering the Controller sub-function ................................................................ 15 Choosing the controller type (limit or proportional).......................................... 15 Choosing break/make contact relay type ........................................................ 16 Selecting proportional range value Xp............................................................. 16 Operating Instructions 7.4.5 lpha-RES1000 Maximum Pulse Length (tPL) or Maximum Frequency (FPF) ......................... 17 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.5.5 7.5.6 7.5.7 MEASUREMENT RANGE SUB-FUNCTION ...........................................................17 Entering the Measuring Range sub-function ................................................... 17 Selecting Measuring Range sub-function........................................................ 17 Measurement Range available in the Controller ............................................. 18 Current Output (rng) sub-function.................................................................... 18 Choosing the output type................................................................................. 18 Selecting Resistivity value at 0(4)mA .............................................................. 18 Selecting Resistivity value at 20mA................................................................. 19 7.6 CONFIGURATION (CONF) SUB-FUNCTION ........................................................19 Entering Configuration sub-function ................................................................ 19 Selecting Filter Function and the Alarm or Wash Function ............................. 19 Selecting the alarm time lag (if the relay 3 is set to Alarm) ............................. 20 Selecting steady or pulse contact for the alarm relay (if the relay 3 is set to 20 Wash Contact (if the relay 3 is set to Wash) ................................................... 20 Input Line Resistance Adjust ........................................................................... 21 Reverting to factory default settings ................................................................ 21 Entering Calibration mode from Advanced Set-up mode ................................ 21 7.6.1 7.6.2 7.6.3 7.6.4 Alarm) 7.6.5 7.6.6 7.6.7 7.7 7.7.1 CALIBRATION (CAL) SUB-FUNCTION ...............................................................21 8 AUTO/MANUAL MODE ....................................................................................22 8.1 8.2 AUTO MODE (MODE AFTER SWITCH-ON)...........................................................22 MANUAL MODE .............................................................................................22 9 10 TECHNICAL SPECIFICATIONS.......................................................................23 GENERAL INFORMATION...........................................................................24 10.1 10.2 10.3 10.4 WARRANTY..................................................................................................24 PACKAGING .................................................................................................24 RETURN OF GOODS......................................................................................24 GUIDELINES FOR RETURNING UNIT FOR REPAIR ..............................................24 APPENDICES ...............................................................................................25 APPENDIX 1 ­ JUMPER POSITIONS .............................................................................25 APPENDIX 2 ­ CONDUCTIVITY / RESISTIVITY OF VARIOUS AQUEOUS SOLUTIONS AT 25OC26 APPENDIX 3 - SIMPLE EXPLANATION ON THE FUNCTION OF HYSTERESIS ........................26 APPENDIX 4 ­ PURE WATER CURVE...........................................................................27 11 Operating Instructions lpha-RES1000 1 1.1 Introduction Description of Unit Thank you for purchasing Eutech's ¼ DIN alpha-1000 series Resistivity process controllers. This unit is used for measuring the Resistivity of a solution in mega-ohms. You can use this unit to measure Resistivity with limit control. This controller has many user-friendly and safety features which include: · · · · · · · · · · · · · · Menu-driven program that simplifies set-up Two ranges of Resistivity measurements-software selectable (Section 7.5.3). 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) prevent chattering of relays around the set points. Selectable Filter function stabilises rapid measurement changes. Three control modes: limit, proportional pulse length or proportional pulse frequency. 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 Pure water and R.O. Systems. 1 Operating Instructions lpha-RES1000 2 2.1 Assembly and Installation Measurement and Control System A typical measurement system consists of: · a lpha-RES1000 process controller · a suitable Resistivity 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-RES1000 Controller Resistivity Controller lpha RES 1000 18.20 Pt100/Pt1000 Temperature Sensor m Alarm / Siren System Process Assembly i h El d 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 2 max. 175 The field-tested control panel housing is 96 x 96 mm; with protection class IP 54 (front). Operating Instructions lpha-RES1000 3 3.1 Electrical Connection Connection Diagram RES O S/ V 18 19 2 0 PE/S 2 1 22 Pt 1000/100 Signal Input Resistivity P o w e r M a in s R ela y A Relay B A larm Hold Input S ignal O u tp u t RES mA NC 1 AC : L N 2 + 16 17 3 PE 4 5 6 7 8 9 10 11 12 13 14 15 PE/S * ) in d ica te d co ntact positions are for currentless conditions 3 Operating Instructions lpha-RES1000 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. Connection for the 17-way screw terminals (from left to right): 1. 2. 3. 4. 5. 6. 7. 8. 9. AC mains live wire AC mains neutral wire AC mains protective earth wire Relay 1 relay resting position (NC) Relay 1 relay common Relay 1 relay working ...