Omega CDTX-90 User's Manual
Contents
1. Notes on Steps 3 and 4 P e Refer to pages 8 13 for complete listing of menu items and their use 7 f Cell Constant e From the Step 3 display pressing the UP and DOWN keys simultaneously will Gruer 5 return the display to the VIEW menu e If no key is pressed for 10 minutes display will also return to the VIEW menu H Step 3 ug I Step 3 Finished Editing Output Setpnt Step 4 Press the UP and DOWN keys simultaneously after 20 0 uS gt ep m saving the last setting to return to normal operation 7 Notes on Steps 5 and 6 All output functions remain active during editing g SUI ag kr Only the flashing element can be edited EE RIGHT ARROW key advances the flashing element in a continuous loop Ke eee Step 5 Edited value is effective immediately after pressing ENTER key i If no key is pressed for 10 minutes unit will restore the last saved value and return to step 3 Step 6 pressing ENTER key always returns you to Step 3 Output Setpnt Repeat steps 3 6 until all editing is completed 900 08 Output Setpnt Step 5 Made an Error u B eee Press the UP and DOWN keys simultaneously Step 6 Fe while any element is flashing This will recall the i Output Setpnt last saved value of the item being edited and Ene return you to Step 3 19 00 us gt Output Setpnt page 9 CDTX 90 1 Calibrate Menu Display as Cell Constant Se2. CDTX 90 3 Calibrate Menu Display Cell Constant Select CUSTOM only if you are connecting a certified conductivity sensor Select STANDARD for all other systems Standard Cell Standard For STANDARD sensors Select from these options 0 01 0 1 1 0 10 0 or 20 0 1 Cell Custom For CUSTOM sensors Enter the precise cell constant from the certificate provided with your sensor or from the information label on the sensor 1 0000 Cond Units Select from the following options uS mS kQ MQ PPM uS PPM Factor If the Units selection is PPM you can set the ratio of Total Dissolved Solids to uS See 5 66 section 3 of this manual for additional information The TDS factor can only be set in PPM Set Adjust the temperature of the system based on an accurate external reference Temperature Set For use with STANDARD sensors Perform this single point wet calibration for most accurate on ee results Not required for CUSTOM sensors except for periodic system accuracy confirmation Conductivity Enter all zeroes to restore factory calibration to TEMP and COND settings Loopl Source Select the input source to be associated with the current loop output Conductivity or Temperature Cond gt Loopl Range uS Select the minimum and maximum values for the current loop output Be sure to modify this setting if you change the Cond Units 0 0000 100 000 gt Output Source Select the source for the Open Collector output Conductivity o
3. Conductivity Resistivity 25 0 C Sh li t Op online a O OMEGA p omega com CEOMEGA www omega com e mail info omega com CDTX 90 Series Conductivity Resistivity Transmitters page 2 omega com CEOMEGA OMEGAnet Online Service Internet e mail www omega com info omega com USA ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance USA and Canada Mexico Benelux Czech Republic France Germany Austria United Kingdom ISO_9002 Certified Sales Service 1 800 826 6342 1 800 TC OMEGA Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN TELEX 996404 EASYLINK 62968934 CABLE OMEGA En Espafiol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands TEL 31 0 20 3472121 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail nl omega com Rud arm dy 1868 733 01 Karvin 8 TEL 420 0 69 6311899 FAX 420 0 69 6311114 Toll Free 0800 1 66342 e mail czech omega com 9 rue Denis Papin 78190
4. 0 1 Cell 0 000001 Siemens Simulation resistance Q 100 000 92 or 1uS cm Conversion 1 uS 1 X 106 Siemens or 0 000001 Siemens 4 Place the calculated simulation resistance between the Signal IN and Iso Gnd terminals as shown 5 Set temperature and set conductivity Optional Reset to factory calibration by entering zero as the Set Conductivity value 2 Temperature Coefficient Conductivity measurement is highly dependent on temperature 3 Cool the sample solution close to the minimum process Temperature dependence is expressed as the relative change per temperature Place sensor in the sample solution allowing C commonly known as percent C change from 25 C or slope several minutes for stabilization Record displayed of the solution temperature and conductivity values in the spaces provided Slopes can very significantly depending on process solution type Displayed temperature T2 C The factory default temperature compensation factor is 2 00 C Displayed conductivity C2 C Process solutions may require adjustment for maximum accuracy To determine the optimum temperature compensation factor for a A 10 change in conductivity between steps 2 and 3 is process recommended 1 Disable the temperature compensation factor by entering 4 Substitute recorded readings steps 2 and 3 into the 0 00 following formula 2 Heat the sample solution close to the maximum process TC Slope 100 x C1 C2 tempe
5. Band Heaters rd Flexible Heaters A Laboratory Heaters ENVIRON MENTAL MONITORING AND CONTROL 4 Metering amp Control Instrumentation A Refractometers 4 Pumps amp Tubing LA Air Soil amp Water Monitors A Industrial Water amp Wastewater Treatment u pH Conductivity amp Dissolved Oxygen Instruments M3632 0802
6. Terminals 7 10 Open collector Outputs Two transistor outputs programmable Internal open collector as output circuit e High or Low setpoint with adjustable hysteresis proportional pulse to 400 pulses per minute maximum e May be disabled Off if not used Terminals 1 2 Auxiliary power Provides DC power to measurement circuit Required for all CDTX 90 systems CDTX 90 3 System Power Loop Connections Stand alone application no current loop used Connection to a PLC with built in power supply PLC Terminals Transmitter Terminals Power Supply DC 12 24V Loop2 Channel 2 4 20 mA in Channel 2 Channel 1 Channel 1 4 20 mA in Internal PLC Connection Example Two transmitters connected to PLC Recorder with separate power supply Transmitter Terminals Transmitter 2 Channel 2 4 20 mA in Channel 2 4 20 mA in Channel 1 4 20 mA in Channel 1 4 20 mA in Transmitter 1 AUX power required for all CDTX 90 systems page 7 3 3 Relay and Open Collector Outputs The Relay and Open Collector outputs can be used as a switch that responds when the process value moves above or below a setpoint or they can be used to generate a pulsing signal with a rate proportional to the process value e Low setpoint Output triggers when process is less than the setpoint The output will relax when the process moves above the setpoint plus the hysteresis value High setp
7. over range This may be a Check sensor for correct range normal condition if your process operates Check Decimal setting in OPTIONS menu at near the limits of the sensor range Check Calibrate menu settings for incompatible kQ or MQ units selected amp sensor is open SOURCE and RANGE values Value Must be less The PPM factor must be a value from Set a PPM value less than 3 than 3 0 00 to 3 00 Value must be greater than 0 Custom cell constant cannot be set to 0 Set cell constant to a value greater than 0 Value must be Pulse Rate cannot be greater than 400 set a pulse rate value less than 400 400 or less Display erratic shows 0 or Auxiliary Power not connected Connect Auxiliary power intermittently Too much Error Defective or dirty coated sensor Clean or replace sensor Check Sensor Wiring error Check and correct wiring Fluid conductivity too low Defective temp element Replace sensor Technical notes If a Current Loop is locked at 3 6 mA the problem is related to the temperature circuit This occurs only if the CDTX 90 detects a resistance from the temperature sensor that is less than 250 or greater than 28000 e Check the sensor wiring for open short or poor connections on white TEMP IN and black ISO GND wires e The PT1000 temperature device in the sensor is defective The transmitter is defective Auxiliary Power terminals 1 and 2 must ALWAYS be connected for the CDTX 90 to operate page 17 Notes p
8. 0 mA gt 5 00 mA i 19 00 mA lt 20 00 mA gt 21 00 ma Loop Adjust Use this setting to match the system output to any external device 20 00 mA Temp Display Select C or F oc gt Temperature Set the percent change in Conductivity caused by a 19C change in temperature May be from 0 00 to 10 00 Comp 2 00 Output Active Active HIGH This setting is used to turn a device pump valve ON at the setpoint Low Active LOW This setting is used to turn a device OFF at the setpoint Test Loop Press UP and DOWN keys to manually order any output current value from 3 6 g mA to 21 00 mA to test the output loop Test Output Press UP and DOWN keys to manually toggle the Open Collector output state gt page 11 CDTX 90 2 Calibrate Menu Display TA Cell Constant Select CUSTOM only if you are connecting a certified conductivity sensor Select STANDARD for all other systems Standard Cell Standard For STANDARD sensors Select from these options 0 01 0 1 1 0 10 0 or 20 0 1 Cell Custom For CUSTOM sensors Enter the precise cell constant from the certificate provided with your sensor or from the information label on the sensor 1 0000 gt Cond Units Select from these options uS mS kQ MQ PPM us PPM Factor If the Units selection is PPM set the ratio of Total Dissolved Solids to uS The maximum allowable is 3 uS 1 PPM The TDS factor can only be set in PPM 2 00 Set Adjust the temperature o
9. ITE Signal IN RED Power Internal open collector Terminals 1 2 Auxiliary power output circuit Provides DC power to measurement circuit Required for all CDTX 90 i I I I I I systems Terminals 5 6 Open collector Output e Atransistor output programmable see CALIBRATE menu as High or Low setpoint with adjustable hysteresis and proportional pulse to 400 pulses per minute maximum May be disabled Off if not used CDTX 90 1 System Power Loop Connections Stand alone application no current loop used Connection to a PLC with built in power supply Transmitter Transmitter Power Supply Terminals DC 12 24V Terminals Power Suppl Ground we Terminals UX ower Internal PLC Connection Example Two transmitters connected to PLC Recorder with separate power supply Transmitter 1 Transmitter Power Supply Terminals Channel 1 4 20 mA in Channel 1 4 20 mA in Channel 2 4 20 mA in AUX power required for all CDTX 90 systems 2 Channel 2 4 20 mA in page 5 CDTX 90 2 Terminal Connections Terminals 3 and 4 Loop Power 12 24 VDC 10 system power Terminals 11 14 Sensor input and current loop output 11 is conductivity input 12 is temperature input Max loop impedance 50 Q max 12 V 325 Q max 18 V 600 Q max 24 V 13 is the isolated signal ground 14 is the sensor earth ground Oo 9 Com Oj 4 ar 8 N O14 ns oj 3 esr 7 W
10. Trappes TEL 33 0 130 621 400 FAX 33 0 130 699 120 Toll Free in France 0800 4 06342 e mail france omega com Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7059 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail germany omega com One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5EX United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk It is the policy of OMEGA to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA Engineering Inc accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for patient connected applications Omega CDTX 90 Series Conductivity Resistivity Transmitter Conductivity Resistivity GASTON Contents 62 50 us en Remove power to unit before wiring 1 Installation input and output connections 2 Specifications AL OMEGA e Follow instructions carefully to avoid 3 Electrical Connections personal injury 4 Menu Functions 1 Installation CDTX 90 Ser
11. Wire lengths of 100 feet are acceptable cable shield must be maintained through cable splice Calibration may be done by known solution value A or by resistance simulation B A Calibration with NIST Traceable Solutions When using NIST traceable standards ensure the sensor and test solution are at the solution temperature specified on the test solution label Prevent contamination of the calibration solution Thoroughly rinse the sensor in a small amount of test solution before placing in any test solution for calibration purposes B Optional Verification with Precision Resistors The use of precision resistors 0 1 connected to the rear Temp In Signal IN and Iso Gnd terminals in place of the sensor yields quick and accurate electronic instrument calibration Calibration is completed as follows 1 Select a standard cell constant based on desired range of operation 2 Place a 1096 Q 25 C resistor between Temp IN and Iso Gnd terminals as shown Note Temperature simulation errors can adversely effect calibration 3 85 per C 3 Calculate the required simulation resistor that represents a value within the selected cell range The formula for determining the required simulation resistance is lojo m ole iat hr rs en Simulation resistor Sensor Cell p g 0 1 Cell Resistance e g 5 000 Q or 5 KQ Desired conductivity Siemens 0 000020 Siemens Conductivity Sensor Cell e g
12. age 18 MADE USA WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA S WARRANTY adds an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that OM EGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA S Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA S WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components which wear are not warranted including but not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes responsibility
13. ange the Cond Units u Output Hys The Open Collector output will be deactivated at Setpoint Hysteresis depending on High or En Low Setpoint selection See details in section 3 3 u Output Rng uS In Pulse mode set the process values where the proportional pulse will start and where it will reach the maximum rate Be sure to modify this setting if you change the Cond Units 10 0000 40 0000 gt Output PlsRate In Pulse mode set the maximum rate for the proportional Pulse output The CDTX 90 will accept any value from 0 to 400 120 Pulses Min Last CAL Use this note pad to record important dates such as annual recertification or scheduled maintenance 06 30 01 gt page 10 CDTX 90 1 Options Menu Display Contrast Adjust the LCD contrast for best viewing A setting of 1 is lower contrast 5 is higher 3 In general select lower contrast if the display is in warmer ambient surroundings Cond Decimal Set the decimal to the best resolution for your py The oo will auto ee ue matically scale down to this restriction Select Tr tt MA op PR Averaging OFF provides the most instantaneous response to process changes Select LOW 4 sec or HIGH 8 sec averaging if your process experiences frequent or off gt extreme fluctuations Loop Adjust Adjust the minimum and maximum current output The display value represents 4 00 mA the precise current output Adjustment limits 3 80 mA lt 4 0
14. ay not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC page 19 6 8850 090 OM C 8 02 W here Do I Find Everything I Need for Process Measurement and Control OMEGA Of Course Shop online at www omega com TEMPERATURE 4 Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies 4 Wire Thermocouple RTD amp Thermistor A Calibrators amp Ice Point References 4 Recorders Controllers amp Process Monitors A Infrared Pyrometers PRESSURE STRAIN AND FORCE 4 Transducers amp Strain Gages l Load Cells amp Pressure Gages 4 Displacement Transducers 4 Instrumentation amp Accessories FLO W LEVEL 4 Rotameters Gas Mass Flowmeters amp Flow Computers A Air Velocity Indicators 4 Turbine Paddlewheel Systems A Totalizers amp Batch Controllers pH CONDUCTIVITY pH Electrodes Testers amp Accessories 4 Benchtop Laboratory Meters Controllers Calibrators Simulators amp Pumps 4 Industrial pH amp Conductivity Equipment DATA ACQUISITION A Data Acquisition amp Engineering Software l Communications Based Acquisition Systems 4 Plug in Cards for Apple IBM amp Compatibles lA Datalogging Systems A Recorders Printers amp Plotters HEATERS 4 Heating Cable lA Cartridge amp Strip Heaters A Immersion amp
15. f the system based on an accurate external reference Temperature Set When using ah STANDARD sensor perform this single point wet calibration for best 28 25 accuracy Not required for CUSTOM sensors except for periodic calibration checks Conductivity Loop Source Select the input Conductivity or Temperature source to be associated with the current loop output Cond gt Loop Range US Select the minimum and maximum values for the current loop output Be sure to modify this setting if you change the Cond Units 0 0000 100 000 gt Relayl Source Select the source Conductivity or Temperature for this relay output Cond Relayl Mode Select the mode of operation for the relay Options available are High Low or proportional Pulse Low The relay may be disabled Off if not in use Relayl Setpnt In Low or High Mode the relay will be activated when the process reaches this value Be 10 0000 us sure to modify this setting if you change the Cond Units Relayl Hys US The relay will be deactivated at Setpoint Hysteresis depending on High or Low Setpoint selection 0 5000 gt Relayl Rng US In Pulse mode set the process values where the proportional pulse will start and where it will reach the maximum rate Be sure to modify this setting if you change the Cond Units 10 0000 40 0000 gt Relayl PlsRate In Pulse mode set the maximum rate for the proportional Pulse The transmitter will accept any value from 0
16. for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by it will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESS OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless f
17. ies transmitters are available in two styles panel mount and field mount The panel mount is supplied with the necessary hardware to install the transmitter This manual includes complete panel mounting instructions Field mounting requires a separate mounting kit The FP90UM Universal kit enables the transmitter to be installed virtually anywhere Detailed instructions for field installation options are included with the FP90UM Universal kit 1 1 Panel Installation 1 The panel mount transmitter is designed for installation using a 1 4 DIN Punch For manual panel cutout an adhesive template is provided as an installation guide Recommended clearance on all sides between instruments is 1 inch 2 Place gasket on instrument and install in panel 3 Slide mounting bracket over back of instrument until quick clips snap into latches on side of instrument 4 Toremove secure instrument temporarily with tape from front or grip from rear of instrument DO NOT RELEASE Press quick clips outward and remove cat r dm mm 3 8 in mounting terminals bracket Optional R k41 mm i 2 2 in gt 1 6in FRONT VIEW EG8in 4 18 in Field Mount amp SIDE VIEW SIDE VIEW Panel Mount Panel Mount Field Mount Panel Mount Installation Detail quick clips 2 Specifications General e Update rate 200 mS Compatible electrodes Omega CDCE 90 Series Standard and e Accuracy 0 03 mA 25 C 24 V Certified Series Conductivit
18. lect CUSTOM only if you are connecting a certified conductivity sensor Select STANDARD for all other systems Standard Cell Standard For STANDARD sensors Select from these options 0 01 0 1 1 0 10 0 or 20 0 1 Cell Custom For CUSTOM sensors Enter the precise cell constant from the certificate provided with your sensor or from the information label on the sensor 1 0000 Cond Units Select from the following options uS mS kQ MQ PPM uS PPM Factor If the Units selection is PPM you can set the ratio of Total Dissolved Solids to uS See page 15 for additional information The TDS factor can only be set in PPM 2 00 Set Adjust the temperature of the system based on an accurate external reference Temperature Set For use with STANDARD sensors Perform this single point wet calibration for most accurate or results Not required for CUSTOM sensors except for periodic system accuracy confirmation Conductivity Enter all zeroes to restore factory calibration to TEMP and COND settings Output Source Select the source for the Open Collector output Conductivity or Temperature Cond gt Output Mode Select the mode of operation for the Open Collector output Options available are High Low or proportional Pulse Low The signal may be disabled Off if not in use Output Setpnt In Low or High Mode this Open Collector output will be activated when the process reaches 100000 as this value Be sure to modify this setting if you ch
19. lly scale down to this restriction Select or kkkk Averaging OFF provides the most instantaneous response to process changes Select LOW 4 sec or HIGH 8 sec averaging if your process experiences frequent or Off gt extreme fluctuations Loopl Adjust Adjust the minimum and maximum current output The display value represents 4 00 mA the precise current output Adjustment limits 3 80 mA lt 4 00 mA gt 5 00 mA L 1 Adjust e 19 00 mA lt 20 00 mA gt 21 00 ma SP Just Use this setting to match the system output to any external device 20 00 mA Temp Display Select C or F C gt Temperature Set the percent change in Conductivity caused by a 1 C change in temperature May be from 0 00 to 10 00 Comp 2 00 Output1 Active Active HIGH This setting is used to turn a device pump valve ON at the setpoint Low Active LOW This setting is used to turn a device OFF at the setpoint Test Loop 1 Press UP and DOWN keys to manually order any output current value from x 3 6 mA to 21 00 mA to test the output loop Test Output 1 Press UP and DOWN keys to manually toggle the Open Collector output state gt Settings will repeat for Loop 2 and Output 2 page 15 Calibration Procedure 1 Requirements The CDTX 90 Transmitter is factory calibrated using simulated input signals System calibration will reduce errors caused by sensor wire lengths longer than the standard 15 ft length
20. nd Temperature values from the sensor 67 89 C This is the permanent display The VIEW displays below are temporary The permanent display will return after 10 minutes Monitor the Loop Current output prae are Check the Last Calibration date CDTX 90 Series Editing Procedure Step 1 Press and hold ENTER key 2 seconds to select the CALIBRATE menu 5 seconds to select the OPTIONS menu Step 2 The Key Code is UP UP UP DOWN keys in sequence After entering the Key Code the display will show the first item in the selected menu Step 3 Scroll menu with UP or DOWN arrow keys Step 4 Press RIGHT ARROW key to select menu item to be edited The first display element will begin flashing Step 5 Press UP or DOWN keys to edit the flashing element RIGHT ARROW key advances the flashing element Step 6 Press ENTER key to save the new setting and return to Step 3 Notes on Step 1 Notes on Step 2 e The View Menu is normally displayed If no key is pressed for 5 minutes while display is showing Enter The CALIBRATE and OPTIONS menus require a KEY CODE Key Code the display will return to the VIEW menu Press amp icc hold for access CALIBRATE Enter Key Code CALIBRATE Enter Key Code CALIBRATE Enter Key Code CALIBRATE Enter Key Code E Cell Constant First item in Standard gt CALIBRATE menu CALIBRATE OPTIONS
21. oint Output triggers when process is greater than the setpoint The output will relax when the process moves below the setpoint plus the hysteresis value Process Hysteresis Low Setpoint Time Relay energized K Relay relaxed J Process High Setpoint Hysteresis VIEW menu e During normal operation the transmitter displays the VIEW menu When editing the CALIBRATE or OPTIONS menus the transmitter will return to the VIEW menu if no activity occurs for 10 minutes To select a VIEW display press the UP or DOWN arrow keys The selections will scroll in a continuous loop Changing the VIEW display does not interrupt system operations No key code is necessary to change display selection Output settings cannot be edited from the VIEW menu CDTX 90 Series View Menu Proportional Pulsing The output will generate a 100 mS pulse at the rate defined by settings in the CALIBRATE menu In the example below The output will be 0 pulses min when value is less than 5 uS The output will be 50 pulses min when value is 7 5 uS The output will be 100 when value is greater than 10 uS The starting point endpoint and maximum pulse rate are selectable in the CALIBRATE menu 100 pulses Pulse rate 5 10 Starting point endpoint Conductivity Resistivity 62 50 uS cm 25 0E A OMEGA Loop Output 13 75 mA page 8 123 45 uS cm Monitor the Conductivity a
22. oy Oji ira op 2 Power 6 Reay O12 ware NO 1 Powers 5 Relay1 Doj 4 Terminals 5 10 Relay Outputs e Two SPDT mechanical relays programmable as e High or Low setpoint with adjustable hysteresis proportional Pulse 400 pulses per minute maximum e May be disabled Off if not used Terminals 1 2 Auxiliary power Provides DC power to sensor Required for all CDTX 90 systems CDTX 90 2 System Power Loop Connections Stand alone application no current loop used Connection to a PLC with built in power supply PLC Transmitter Terminals Power Supply Transmitter Power Supply DC 12 24 V Terminals F Terminals Internal PLC Connection Example Two transmitters connected to PLC Recorder with separate power supply Transmitter DC 12 24 V Terminals Channel 1 4 20 mA in Channel 1 4 20 mA in Loop Input 4 20 mA in Channel 2 4 20 mA in Channel 2 4 20 mA in AUX required for all CDTX 90 systems page 6 CDTX 90 3 Terminal Connections Terminals 3 6 Loop Power 12 24 VDC 10 system power and current loop output Max loop impedance 50 Q max 12 V 325 Q max 18 V 600 Q max 24 V Terminals 11 14 Sensor input 11 is conductivity input 12 is temperature input 13 is the isolated signal ground 14 is the sensor earth ground Loop 2 Loop 2 Pen ree Output 2 O 14 ag System Pur ouput Ol seg pe Do 12 ware Paar Output 1 I O 11 in D i
23. r Temperature Cond gt Outputl Mode Select the mode of operation for the Open Collector output Options available are High Low or proportional Pulse Low The signal may be disabled Off if not in use Outputl Setpnt In Low or High Mode this Open Collector output will be activated when the process reaches veden OG this value Be sure to modify this setting if you change the Cond Units u Outputl Hys The Open Collector output will be deactivated at Setpoint Hysteresis depending on High or end Low Setpoint selection See details on page 4 us Outputl Rng uS In Pulse mode set the process values where the proportional pulse will start and where it will reach the maximum rate Be sure to modify this setting if you change the Cond Units 10 0000 40 0000 gt Outputl PlsRate In Pulse mode set the maximum rate for the proportional Pulse output The transmitter will accept any value from 0 to 400 120 Pulses Min Last CAL Use this note pad to record important dates such as annual recertification or scheduled maintenance 06 30 01 gt Settings will repeat for Loop 2 and Output 2 page 1 CDTX 90 3 Options Menu Display Contrast Adjust the LCD contrast for best viewing A setting of 1 is lower contrast 5 is higher 3 In general select lower contrast if the display is in warmer ambient surroundings Cond Decimal Set the decimal to the best resolution for your application The display will automatica
24. rature Place sensor in the sample solution allowing C2 x T1 25 C1 x T2 25 several minutes for stabilization Access the VIEW menu and record the displayed temperature and conductivity Example A sample solution has a conductivity of 205 uS values in the spaces provided 48 C After cooling the solution the conductivity was measured at 150 uS 23 C C1 205 T1 48 C2 Displayed temperature T1 C 150 T2 23 Displayed conductivity C1 C The TC is calculated as follows Do not use this procedure for solutions from 0 055 uS to 0 1 uS TC Slope 100 x 205 150 5500 1 42 C 10 MQ to 18 MQ An internal pure water curve is used for these 150 x 48 25 205 x 23 25 3860 ranges The factory default setting of 2 00 C should be used page 16 Parts Per Million PPM Factor This feature is only applicable when PPM display units are selected The programmable PPM Factor is adjustable from 0 01 to 3 00 factory default 2 00 Determine the best PPM Factor for a process solution by calculating the solution s conductivity uS and the percent of total dissolved solids PPM PPM Factor Solution conductivity uS cm Total dissolved solids PPM TDS PPM Solution conductivity uS cm PPM Factor Example Solution conductivity 400 uS cm TDS 200 PPM mg L PPMFactor 400 uS cm 2 00 200 PPM Troubleshooting Display Condition Possible Causes Suggested Solutions Display is
25. rom any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the 1 Purchase Order number to cover the COST of product was PURCHASED the repair 3 ae ae d ifi bl 3 Repair instructions and or specific problems epalr Instructions and or specitic problems relative to the product relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2000 OMEGA ENGINEERING INC All rights reserved This document m
26. rument Wiring Procedure no 2 1 Remove 0 5 0 625 in 13 16 mm of insulation from wire end p ca 2 Press the orange terminal lever downward with a small screwdriver to open terminal jaws 3 Insert exposed non insulated wire end in terminal hole until it bottoms out 4 Release orange terminal lever to secure wire in place Gently pull on each wire to ensure a good connection Wiring Removal Procedure 1 Press the orange terminal lever downward with a small screwdriver to open terminal jaws 2 When fully open remove wire from terminal 3 1 Sensor Connections CDTX 90 1 Terminals eo Shield Sensor Gnd N Black Iso Gnd Og White Temp p pa Red Signal In H CDTX 90 2 Terminals Shield Sensor Gnd N Black Iso Gnd White Temp In Red Signal In U CDCE 90 Series Standard and Certified Cells CDTX 90 3 Terminals Shield Sensor Gnd 3 N Black Iso Gnd e iis White Temp In Red Signal In U page 4 CDTX 90 1 Terminal connections Terminals 3 and 4 Loop Power 12 24 VDC 10 system power and current loop output Max loop impedance Terminals 7 10 Sensor input 7 is conductivity input 8 is temperature input 9 is the isolated signal ground 10 is the sensor earth ground 50 Q max 12 V 325 Q max 18 V 600 Q max 24 V System Pwr Sensr Gnd Loop mn SHIELD System Pwr Iso G Loop I O 6 Output BLACK AUX Temp IN WH
27. to 400 120 Pulses Min Last CAL Use this note pad to record important dates such as annual recertification or scheduled 06 30 01 maintenance page 12 CDTX 90 2 Options Menu Display z Contrast Adjust the LCD contrast for best viewing A setting of 1 is lower contrast 5 is higher In 3 general select lower contrast if the display is in warmer ambient surroundings Cond Decimal Set the decimal to the best resolution for your application The display will automatically kkkk Ok scale down to this restriction Select ork ke gr Averaging OFF provides the most instantaneous response to process changes Select LOW 4 sec Off gt or HIGH 8 sec averaging if your process experiences frequent or extreme fluctuations Loop Adjust Adjust the minimum and maximum current output The display value represents the 4 00 mA precise current output Adjustment limits E 7 3 80 mA lt 4 00 mA gt 5 00 mA Loop Adjust 19 00 mA lt 20 00 mA gt 21 00 ma 20 00 ma Use this setting to match the system output to any external device Temp Display Select C or F OF Temperature Set the percent change in Conductivity caused by a 1 C change in temperature May be Comp 2 00 gt from 0 00 to 10 00 Test Loop Press UP and DOWN keys to manually order any output current value from 3 6 mA to gt 21 00 mA to test the output loop Test Relayl Press UP and DOWN keys to manually toggle the relay state page 13
28. unity EN50082 2 4 to 20 mA isolated fully adjustable and reversible Emissions EN55011 e Max loop impedance 50 Q max 12 V e Safety EN61010 325 Q max 18 V 600 Q max 24 V e Manufactured under ISO 9001 and ISO 14001 e U S A Patent 5 708 363 page 3 3 Electrical Connections Ultra CDCE 90 Series Sensor Ranges Pure Pure Rinse o CDCE 90 20 o Sensor Selection 8 REE og CDCE 90 1 Select the sensor with a range closest to your process minimum and 5 maximum values S oo CDCE 90 001 0 01 cell 0 055 to 100 uS 10 kQ to 18 MQ a oe Use the CDCE 90 001 for all resistivity requirements He A ee ee iodo 10000 200 000 400 000 e CDCE 90 01 0 1 cell 1 to 1000 uS 18 MO 10 kQ i e CDCE 90 1 1 0 cell 10 to 10 000 uS Conductivity Range pS e CDCE 90 10 10 0 cell 100 to 200 000 uS CDCE 90 20 20 0 cell 200 to 400 000 uS Wiring Tips CDTX 90 Do not route sensor cable in conduit containing AC power wiring Electrical noise may interfere with sensor signal lt 100 ft 30 m e Routing sensor cable in grounded metal conduit will help OL OMEGA y prevent electrical noise and mechanical damage ARRIE Seal cable entry points to prevent moisture damage Only one wire should be inserted into a terminal Splice double wires outside the terminal e Sensor cable may not be extended over 100 ft AN Caution Failure to fully open terminal jaws before removing wire may permanently damage inst
29. y Resistivity Electrodes Relay outputs Accuracy 2 of reading CDTX 90 2 includes 2 mechanical SPDT contacts Enclosure Maximum voltage rating e Rating NEMA 4X IP65 front 5 AQ 30 VDC or 5 A 250 VAC resistive load Case PBT Programmable for e Panel case gasket Neoprene e High or Low setpoint with adjustable hysteresis e Window Polyurethane coated polycarbonate e Pulse operation max rate 400 pulses min Keypad Sealed 4 key silicone rubber e Weight Approx 325g 12 02 Open collector output optically isolated Display 50mA max sink 30 VDC maximum pull up voltage Alphanumeric 2 x 16 LCD Programmable for e Contrast User selected 5 levels High or Low setpoint with adjustable hysteresis Update rate 1 8 seconds e Pulse operation max rate 400 pulses min Electrical Environmental Power 12 to 24 VDC 10 regulated 80 mA max Operating temperature 10 to 70 C 14 to 158 F e Storage temperature 15 to 80 C 5 to 176 F Sensor input range e Relative humidity 0 to 95 non condensing e Conductivity 0 055 to 400 000 uS e Maximum altitude 2000 m 6562 ft e Resistivity 10 KQ to 18 2 MQ Insulation category ll Measurements from 10 MQ to 18 MQ 0 055 uS to 0 1 uS must e Pollution degree 2 be performed in solution temperatures from 20 C to 100 C e TDS 0 023 to 200 000 ppm Standards and Approvals e Temperature PT 1000 25 to 120 C 13 to 248 F e CSA CE UL listed Current output Imm
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