Instruction Manual lpha CON 190 1/8 DIN Conductivity Controller with Temperature display and Transmitter Technology Made Easy ... 68X276107 Rev 0 11/2004 PREFACE This manual serves to explain the use of the lpha CON 190 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 lpha CON 190 controller/transmitter as possible. If there are doubts in the use of the lpha CON 190 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 to your Authorized Distributor or Eutech Instruments Pte Ltd. The information presented in this manual is subject to change without notice as improvements are made, and does not represent a commitment on the part of Eutech Instruments Pte Ltd. Copyright© Rev. 0 11/2004 Eutech Instruments Pte Ltd. All rights reserved. TABLE OF CONTENTS 1 2 3 INTRODUCTION SAFETY INFORMATION OVERVIEW 3.1 3.2 3.3 3.4 3.5 FRONT PANEL BACK PANEL WIRING PANEL-MOUNTING THE CONTROLLER FERRITE ASSEMBLY 1 2 3 3 4 5 5 6 4 MEASUREMENT MODE 4.1 4.2 MEASUREMENT MODE DISPLAY SET POINTS ADJUSTMENTS 7 7 8 5 6 7 8 PASSWORD CONDUCTIVITY CALIBRATION TEMPERATURE CALIBRATION SETUP MODE 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 GENERAL INFORMATION SETUP MODE OVERVIEW SET POINT 1 ­ P1.0 SET POINT 2 ­ P2.0 MEASUREMENT RANGE SELECTION ­ P3.0 CONFIGURE TEMPERATURE SETTINGS ­ P4.0 VIEWING CONDUCTIVITY CALIBRATION DATA ­ P5.0 VIEWING CONDUCTIVITY/ TEMPERATURE ELECTRODE DATA ­ P6.0 CONTROLLER RESET ­ P7.0 9 11 13 14 14 15 16 18 20 21 22 23 24 9 RELAYS 25 25 26 27 30 10 TRANSMITTER FUNCTION 11 SPECIFICATIONS 12 ACCESSORIES 13 GENERAL INFORMATION 1 INTRODUCTION Thank you for purchasing the lpha CON 190 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 non volatile memory 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 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 2. REL 2 3. MEAS 4. CAL 5. SETUP 6. µS 7. oC 8. mS Keys 9. MODE 10. CAL / ENTER 11. SP1 / SP2 / Displayed when Relay 1 is activated Displayed when Relay 2 is activated Displayed in measurement mode Displayed in calibration mode Displayed in setup mode Unit of the displayed parameter (micro-Siemens / cm) Unit of the displayed parameter (temperature) Unit of the displayed parameter (milli-Siemens / cm) Use to toggle between Measurement modes (Conductivity and temperature). Use to enter Calibration mode. Use also to enter into levels of the Setup mode and to confirm changes made. Use to enter Set Point 1 (SP1) or Set Point 2 (SP2) adjustment mode. Use as increment or decrement keys during Calibration and Setup modes. Use both keys together in Calibration and Setup modes to escape to Measurement mode. 12.14-segment display SP1 CAL ENTER SP2 MODE µS mS CON 190 Series 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 + CON GND - CON NC NC + 4 - 20mA - 4 - 20mA RELAY1 RELAY2 PT100 NC NC N L 12 11 10 9 8 7 6 5 4 3 SENSE IN Caution 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 lpha CON190 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 190 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. 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. 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 321 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. 5 Wall panel Catch Catch approx. 154.20 Threaded rod Threaded rod SIDE VIEW approx. 100 TOP VIEW 3.5 Ferrite Assembly The power cable (L, N & E) needs to be connected to the instrument with two turns through the Split Ferrite which is supplied as an accessory with the instrument. It is strongly suggested that the Ferrite element supplied as a standard accessory be installed as described below. 6 4 MEASUREMENT MODE The lpha CON 190 controller is capable of taking conductivity measurement with Automatic (ATC) or Manual (MTC) Temperature Compensation. The measurements are displayed distinguishingly by the annunciators on the front panel. 4.1 Measurement mode display Press the MODE key to toggle between Conductivity 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. The µS or mS annunciator will light up depending on which range is selected. Conductivity Range 0.00 ­ 20.00 µS/cm 0.0 ­ 200.0 µS/cm 0.0 ­ 200.0 µS/cm 0 ­ 2000 µS/cm 0.00 ­ 10.00 mS/cm 0.00 ­ 20.00 mS/cm 0.0 ­ 200.0 mS/cm 0.0 ­ 200.0 mS/cm Range No., R 1 2 3 4 5 6 7 8 Resolution 0.01 µS/cm 0.1 µS/cm 0.1 µS/cm 1 µS/cm 0.01 mS/cm 0.01 mS/cm 0.1 mS/cm 0.1 mS/cm Cell Constant 0.1 0.1 1 1 1 1 1 10 Temperature Measurement mode Press MODE key once to view the temperature measurement. The °C annunciator lights up. The display shows ATC or MTC, then the current measured temperature. For selection of temperature compensation ATC or MTC, see Setup program P4.1. 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. 7 4.2 Set Points Adjustments You can make quick set points adjustments with the direct access of the Set Points adjustment modes (SP1 and/or SP2). By just pressing the SP1/ or SP2/key, you can enter the Set Point adjustment mode and set a new Conductivity value that will cause your controller to activate. Set Point 1 (SP1) adjustment mode This lets you adjust the Conductivity value in Set Point 1. If this value is crossed, the set point relay 1 LED will light. 1. 2. 3. Press the SP1/ key. The screen will scroll P1.1, SP1, and then the current set point value. Press the or keys and adjust first relay set point. Default value is 10% of full scale of range selected. Press ENTER to confirm and return to the measurement mode. NOTE: Press and keys together (ESCAPE) at anytime, to return to Measurement mode. Set Point 2 (SP2) adjustment mode This lets you adjust the Conductivity value in Set Point 2. If this value is crossed, the set point relay 2 LED will light. 4. 5. 6. Press the SP2/ key. The screen will scroll P2.1, SP2, and then the current set point value. Press the or keys and adjust first relay set point. Default value is 90% of full scale of range selected. Press ENTER to confirm and return to the measurement mode. NOTE: Press and keys together (ESCAPE) at anytime, to return to Measurement mode. NOTE: These modes are only for adjusting relay 1 and/or relay 2 set points values. To set the relays as low or high set points or to set its hysteresis values, you have to make the adjustments from the Setup mode as in Section 8.3 and Section 8.4. 8 5 PASSWORD The Setup mode is to be accessed by entering a password code. The direct accessed Set Point adjustment mode (SP1 and SP2) and the Calibration mode can also be accessed through this password code procedure. The alpha CON 190 controller features two separate passwords: · Conductivity and Temperature calibration mode password = 011 · Setup program password = 022 To enter the password: 1. Press the MODE key, and within 1 second, press the CAL/ENTER key. The display reads P.WRD. 2. Press ENTER again. The display reads "P.000". The first "0" flashes. 3. Press ENTER again to leave the first digit "0" and to scroll to the next number. 4. Press the or keys to change the second digit to the desired password number (1 or 2). Press ENTER. 5. Press the or keys to change the second digit to the correct password number (1 or 2). Press ENTER. The display flashes the password that has been entered. NOTE: If you enter an incorrect digit, press MODE to step backward. 6. Press ENTER again. You are now in Calibration mode or Setup mode, depending on password entered. NOTE: In the Password Entry mode, if there is no key-press for more than 30 seconds, Controller will automatically revert to measurement 9 P . P .000 P .000 .0 P 10 P .020 P 11 .0 .022 P P .011 .022 P 10 6 CONDUCTIVITY CALIBRATION IMPORTANT: When Calibration mode is entered, controller automatically goes into a "HOLD" mode where the 4-20 mA output freezes and relays are de-activated (if it was in an activated condition). Upon return to measurement mode, both 4-20mA output and relay activities resume, depending on settings. The lpha CON 190 controller includes 8 conductivity measurement ranges. Onepoint slope calibration is possible, in each range. Choose fresh standard solutions, whose value is reasonably close to the measurement value. Before calibration, make sure electrode is clean. Use iso-propyl alcohol followed by thorough rinsing in distilled water to clean electrode. Important: To achieve a successful conductivity calibration, two conditions must be satisfied: 1. Difference between measured value of standard solution, and actual value of standard solution, must be within ± 40 %. ...