2450e MANUAL - Lakewood Instruments
Contents
1. 25 6 3 Calibration of Conductivity and 26 6 3 1 Calibration of Conductivity 26 6 3 2 Calibration of pH ORD eee 26 6 3 2 1 Zero or Span 27 6 3 2 2 Calibration Error Messages 27 6 3 2 3 Cal Check of pH ORP in Buffer Solutions 27 5 4 Main uie eins Eust cce 28 6 5 Configuring the Relays 4 11 ccce usan anra 29 6 5 1 Relay Option Screen eere 29 6 5 T Disabled do nere a 29 6 5 1 2 Setpoint Control esses 30 6 5 1 2 cnr rennen 30 6 5 1 2 2 icri 31 6 5 1 2 3 TIiBOUT 31 6 5 1 2 4 Setpoint Direction 31 6 5 1 3 Auto etin 32 6 5 1 4 Alarm Relay 32 6 5 1 5 Change My Name 33 6 5 1 6 CIP LOCKOUE 33 6 6 Configuring the Alarms nnmnnn 34 6 7 Flow Meters T M HS 35 6 7 1 Industrial ti uaa2. DU xk 60 8 0 Troubleshootirig 2 i ricco c cirsin nins aa ans au ca ek d au Rua ooo sn CR 61 9 0 Factory Service anon pd cn Gd b Felis x Deka Y Fi e CA 65 10 0 66 1 0 INTRODUCTION The Model 2450e is a LoNWoRks Technology microprocessor based menu driven pH or ORP and conductivity reverse osmosis monitor The Model 2450e provides for pH or ORP and conductivity tracking and control flow monitoring and four relay outputs for alarms setpoint control and auto flush functions The Model 2450 is ANSI UL approved Available options include up to four 4 20 mA outputs and remote communications capability via RS232 by direct connect over the phone lines with the use of a modem or over the internet or intranet with the use of the WEBNode A security password is a standard feature to restrict access to the programming functions to authorized personnel only Five countdown timers are a standard feature for notification of required standard maintenance procedures The monitor will display permeate conductivity feed pH permeate flow rate concentrate flow rate calculated feed flow rate total permeate flow total feed flow relay status the date and time machine run time permeate temperature and calculated percent of recovery The Model 2450e uses the latest in microprocessor capability and is us
3. 6 rasant 16 3 4 Electrical Installation iir t Ciber id iiis 17 3 4 1 Incoming Power 115 230 VAC 17 3 4 2 Relay WIring 17 3 4 3 Switch Wirihng erinnern enirn ie 18 3 4 4 Flow Meter Wiring 18 3 4 5 4 20 mA Output Wiring 18 4 0 dni 19 1 Display 19 4 2 Keypad DUI P MINES GUIDES 19 SIR Y 19 4 4 Security Levels aiaiai tisasari 20 5 0 Starting Up the Monitor 21 5 1 Initial Power dr in 21 5 2 Initialization m 21 5 3 Conductivity Preamp Setup 22 5 14 Gell 22 5 5 Temperature 23 6 0 Operation of the na 24 6 1 Operation Screen 24 6 2 Manual Operation of the
4. The pH ORP input can be selected to pH or ORP The default setting is set to pH To change the input from pH to ORP or ORP to pH From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select pH ORP Press 3 CHANGE pH CHANGE TO ORP Press 1 YES to change the pH ORP input to the selected type or press 2 NO to leave the pH ORP input at the current type 6 9 1 2 CONDUCTIVITY The conductivity process parameters screen allow the user to change the name of the conductivity input and configure the electronics for the conductivity sensor From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select COND CONDUCTIVITY 1 CHANGE MY NAME 2 PREAMP SETUP 6 9 1 2 1 COND CHANGE NAME The name of the conductivity input can be changed to any four character name From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select COND Press 1 CHANGE MY OLD COND NEW COND lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 47 6 9 1 2 2 COND PREAMP SETUP The internal preamp must be set up for the conductivity sensor that is used Refer to the following tables for the preamp setup for Lakewood Instruments conductivity sensors RANGES C
5. 49 6 9 1 3 1 Temp Change My Name 50 6 9 1 3 2 Temp Temp Compensation 50 6 9 1 4 Percent Recovery 51 6 9 1 4 1 Rec Change My Namoe 51 6 9 2 52 6 9 3 Security Change Passwords 53 6 9 4 Software Versions 53 6 9 5 200000 M 54 6 9 6 Et 55 6 9 7 COMMUICATIONS 55 6 9 7 1 56 6 9 7 2 Initialize Modem 56 6 9 7 3 Remote 57 6 10 Setting the CIOGK LER ERR SiC ae 57 6 11 Changing the Security Levels 58 7 0 iiie METER 59 7 1 Sensor Maintenance unice rdi ouais Oe ICI AE RAN FEE dC 59 7 1 1 Conductivity anta acu aud uan 59 7 1 2 pH ORP cei 60 7 2 th FUSE
6. 1 VIEW ONLY 2 OPERATOR Select VIEW ONLY for the most restrictive level or OPERATOR a less restrictive level of access CHANGE LEVEL TO OPERATOR WARNING YOU SHOULD KNOW THE PASSWORD Select YES to change the security level to a more restrictive level The controller menu now functions at the new security level To return to the Technician security level From the Operation screen use the keypad to enter the 4 digit numeric password for the Technician security level TECHNICIAN PRESS ANY KEY Note The default Technician password is 2222 and the Operator password is 1111 Passwords can be changed in the SYSTEM SETUP menu 58 7 0 Maintenance Periodic maintenance is required to ensure trouble free operation of the model 2450e controller The following sections cover the required maintenance 7 1 Sensor Maintenance Routine maintenance is necessary in order to maximize the efficiency and accuracy of your sensor 7 1 1 Conductivity Sensor Clean the electrode end of the Conductivity sensor at least once per month Cleaning of the Conductivity sensor may need to be performed more frequently if it is in a high fouling environment Remove power from the controller and shut off the sample flow Remove the sensor from its plumbing Clean the electrodes with a wire brush A soft steel brush is preferable to a brass brush Do not use cloth to clean the electrodes Cloth has oils that wi
7. P PaPe il SETT RTE T T i RED SLACK WIRES FROM THE 320 SENSOR AFE NOTES UNLESS OTHERWISE AE t NOTES UNLESS OTHERWISE SPECIFIED 2450 USED WITH CONTACTING HEAD METER 2450 METER 1 IS PERMEATE METER 2 IS CONCENTRATE CUSTOMER SUPPLIED 10K RESISTOR PULL UP ONLY OPEN COLLECTOR OUTPUT WATER METERS MAY 3E USED CONTACTING HEAD WATER METER 2 8 LLL oonoooojooooeoo o06600605n o 0o 0oo0n0 SM bw N dq b WATER METER TURINE RESISTOR INSTRUMENTS ARNG DIAGRAM WATER NETER INPUTS 2007 SERES 2535 2540 PADDLE WHEEL pom k 4 5 9 1268647 6 1268647 1 INSTRUMENTS 28 NOTICE 1 5 4 a 1 WIRING PY E WIRING OTHERS RECEPTACLE USED WIRE WALNE TEL AND TAS 4 RELAT CONTACTS RATED 10A c WAC 1173F 240 INSTRUMENTS ELECTRIGAL SCHEMA 2000 SERIES ENCLOSURE THIS eec DG NOT SCALE 1521 rrr pu EH DLIASEO dis UNLESS OTHERWEXE SPECIFIEDE STANDARD FOUR CONDLETOR GAME UP TO EG FEET IM LENGTH MAY AE SLBSTITUTED HAVES DOBNPATISLE MOCEM 25 CONNECTOR SHH DEDICATED TELEPHONE LINE 2 DO MOT FLUG R
8. Relay 2 3 and 4 Figure 2 Model 2450e Installation Schematic 2450e LONWORKS Technology based Reverse Osmosis Monitor MONITOR OPTIONS select no more than two two 35L may be purchased 35L Two 4 20 mA outputs two 35L cards may be used for up to 4 outputs RS2L Communications node with the LRWS program SENSOR OPTIONS 1104593 pH High Purity sensor 4 inch NPT flow cell 520 4 71 10 STD pH sensor 0 14 pH 34 inch NPT 530 4 71 10 ORP sensor 34 inch NPT 540K0 1 4 101 10 TC500 Conductivity Sensor 0 10 uS 34 inch 540K 1 4 101 10 TC500 Conductivity Sensor 0 100 uS 34 inch NPT 543 1 4 81 10 5 0 Conductivity Sensor 0 1000 15 1 inch 543 M 4 81 10 STD Conductivity Sensor 500 100 000 uS 1 inch AUTOTROL TURBINE WATER METER OPTIONS 1TM NPT 1 inch turbine water meter with brass pipe thread adapters 1TM ESW 1 inch turbine water meter with PVC solvent weld adapters 2TM NPT 2inch turbine water meter with brass pipe thread adapters 2TM ESW 2 inch turbine water meter with PVC solvent weld adapters 49C25 25 ft cable for turbine meters 49C50 50 ft cable for turbine meters SOFTWARE AND EXTERNAL MODEM OPTIONS LRWS Windows based registered software for computer to communicate with 2000 Series Controllers WEBNode IP TCP device for use with 2000 series controllers EZWEB Wireless internet interface for use with WEBNode and 2000 series controllers 2 2 Front Panel Description LOCK SCREWS The lock screws
9. The standard values for the DATA BITS is 8 STOP BITS is 1 and PARITY is NONE Normally these will not need to be changed 6 9 7 2 Initialize Modem Before a modem be used by the controller it must be initialized initialization screen gives four choices of modems To initialize the modem From the Communications menu press 2 INITIALIZE MODEM INITIALIZE MODEM 1 HAYES ACCURA 2 U S ROBOTICS 3 ZOOM 4 OTHER MODEM Select your modem from the list If your modem is not listed and you select OTHER MODEM use the keypad to enter the initialization string for your modem f modem fails to initialize check the 25 pin connector the phone cable the modem and the RS2L option card 56 6 9 7 3 Remote Password Remote communications to the Lakewood Instruments 2000 series controllers is protected with an 8 digit password The remote password is required to make changes to the model 2450e controller using the communications option card The remote password screen in the communications menu is used to change the remote password remote password can only be changed at the controller To change the remote password From the communications menu press 3 REMOTE PASSWORD Use the keypad to enter the old password Enter the new password Repeat the new password again for verification NOTE The default password is 12345678 Set the remote password in the LRWS program to match the ne
10. 2222 for Technician 1111 for Operator If the controller is in the View Only or Operator mode just press the appropriate password on the keypad to change to a less restrictive security mode The passwords can be changed to personalized passwords from the Technician Level Menu NOTE IF YOU USE PERSONALIZED PASSWORDS MAKE SURE THEY ARE RECORDED IN A SAFE AND SECURE PLACE 20 5 0 Starting Up the Monitor 5 1 Initial Power Up Upon initial power up you will notice the Monitor will display SERIES 2000 REVERSE OSMOSIS MONITOR PRESS ANY KEY This indicates that power has been applied to the Monitor and no one has touched the keypad This will also occur anytime there is a power outage and power has been returned to the Monitor Press any key on the keypad and you will see the Operation Screen the Screen Press CLR on the keypad and you will see the Main Menu on the screen Use the and arrow keys to move through the menu 5 2 Initialization Initialization restores the factory default settings to the controller The whole controller can be initialized or just the calibration It is suggested that you initialize the whole controller before you program the controller This will clear any random settings that may be in the controller To initialize the whole controller From the Main Menu press 6 SYSTEM SETUP Press 2 INITIALIZATION Press 2 WHOLE CONTROLLER warning will a
11. 6 2 Manual Operation of the Relays All four of the relays can be operated manually To manually operate the relays Go to the Operation screen Press ENT You will be taken to a screen that looks like RELAY AUTO MANUAL 1 RLY1 2 RLY2 3 RLYS3 4 RLY4 Press 1 4 Press 1 4 to manually change the state of that particular relay If the relay is already on pressing that number will turn it off A relay that is in manual control will stay in manual control even if this screen is exited WARNING Manual control overrides everything Use care when operating relays manually with no flow in the system 25 6 3 Calibration of Conductivity and pH 6 3 1 CALIBRATION of CONDUCTIVITY The conductivity requires periodic calibration Calibration is usually required after cleaning the sensor Calibration should always be performed with the sensor in the piping assembly with good flow past the sensor It is necessary to have an accurate reading of the water to properly calibrate the controller A hand held conductivity meter that tests the sample works well for this purpose Buffers should not be used for calibration purposes The model 2450e controller uses a single point calibration A two point calibration is not necessary if using a Lakewood Instruments conductivity sensor Ensure that the monitor is operating with good flow past the sensor Take a sample of the water and measure with a hand held c
12. down arrow keys to raise or lower the 4 20 mA output The dark bar indicates the current output To exit this screen press CLR 6 8 5 CHANGE MY NAME The name of 4 20 mA output channel can be changed to any 4 character name OLD 420A NEW 420A lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 44 6 9 SYSTEM SETUP The system setup menu is used to set up the process parameters initialize the controller check the software versions change the security passwords check the diagnostics set up the communications set up the timers From the MAIN MENU press 6 SYSTEM SETUP SYSTEM SETUP PROCESS PARAMETERS INITIALIZATION SECURITY SOFTWARE VERSIONS TIMERS DIAGNOSTICS COMMUNICATIONS 6 9 1 PROCESS PARAMETERS There are sub screens in the process parameters screen for each of the process inputs For the model 2450e there are screens for each of pH ORP conductivity temperature and recovery The WHICH PROCESS screen will appear on the screen once Process Parameters is selected From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS WHICH PROCESS 1 pH 2 COND 3 TEMP 4 REC Use the number keys to select the desired process input 6 9 1 1 pH ORP The pH ORP process parameters screen allow the user to change the name of the pH ORP input place the pH input into
13. keeps your circuit boards secure and provides easy access for wiring and setup Simply turn the lock screw and pull open the front panel Figure 3 Model 2450e HL 6 am aW HE m AE E BENE Lakewood INSTRUMENTS SERIES 2000 241 16 KEYPAD ENT for Menu selection and or acceptance of selected values CLR to exit a Menu selection and or skip input options DSP to change languages PRO to program a Menu selection N 4 POWER ON OFF SWITCH ENCLOSURE A sturdy NEMA 4X rated enclosure protects your controller Make sure it is properly mounted SEE INSTALLATION Mounting The power cord and receptacles can be removed so that the controller can be hardwired through knockouts 3 0 Unpacking Mounting and Installation 3 1 Unpacking Inspect the shipping carton for obvious external damage Note on the carrier s bill of lading the extent of the damage if any and notify the carrier Save the shipping carton until your Model 2450e controller is started up If shipping damage has occurred call the Lakewood Instruments Customer Service Department at 800 228 0839 and return the controller to the factory in the original carton 3 2 Mounting the Enclosure The Model 2450 is supplied with four mounting feet The Model 2450e can be mounted to a panel or to a flat non vibrating wall Attach the four mo
14. mA output channels channels C and D The 35L option card must be installed in the monitor before installing the 35L2 option card NOTE The 35L option card must be installed for this menu selection to be functional The 4 20 mA output screens are used to set the range calibrate the 4 20 mA output configure the output to a process take manual control of the 4 20 mA output and change the name of the output To access the 4 20 mA output screens from the main menu From the main menu 55 5 4 20 mA OUTPUTS This will take you to the OUTPUT CHANNEL selection screen Press 1 for CH A press 2 for CH B or 3 for CH C or 4 for CH D 4 20 MA OUTPUTS Each channel is configured separately and when a channel is selected the following screen will appear 1 SET 4 20 MA RANGE 2 CALIBRATE 4 20 MA 3 WHICH PROCESS 4 MANUAL CONTROL 5 CHANGE MY NAME NOTE When configuring a channel of 4 20 mA output the process should be selected before setting the range 42 6 8 1 SET the 4 20 mA RANGE NOTE When configuring a channel of 4 20 mA output the process should be selected before setting the range The range of the output channel should match the range of the device to which the output is sent When SET 4 20 MA RANGE is selected the follow screen is displayed 4 MA VALUE 0 00 pH 20 MA VALUE 14 00 pH Use the keypad to enter the 4 MA value then press ENT Use the keyp
15. stand by mode and switch the input between pH and ORP From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select pH ORP 1 CHANGE MY NAME 2 STAND BY MODE 3 CHANGE TO ORP 6 9 1 1 1 pH ORP CHANGE MY The name of the pH ORP input can be changed to any four character From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select pH ORP Press 1 CHANGE MY NAME OLD pH NEW pH lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 6 9 1 1 2 pH ORP STAND BY MODE The pH ORP input can be placed into the stand by mode The stand by mode locks the pH ORP reading into a solid value specified by the user This helps to prevent spurious alarms when the pH ORP input is not in use From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select pH ORP Press 2 STAND BY MODE FORCE THE PROCESS INTO STAND BY MODE 1 YES 2 Press 1 YES to place the pH ORP input into the STAND BY mode The following screen appears STAND BY VALUE 4 00 pH PRO Use the keypad to set the stand by value and press the ENT key NOTE When the pH ORP input is placed into the STAND BY mode the pH value on the OPERATION screen will flash constantly 46 6 9 1 1 3
16. 1 PROCESS PARAMETERS Press 3 TEMP Press 2 TEMP COMPENSATION Select the value of your temperature compensator Press ENT 23 6 0 Operation of the Controller 6 1 Operation Screen The screen that is used the most in the 2450e controller is the Operation Screen Below are the process screen views The process screen has three sections The top section is separated from the bottom section by the alarm bar in the middle section The alarm bar is solid in appearance and flashes showing the current active alarms in sequence if there are multiple alarms PERM CONC 0 0 HEZHMSEDASHINGI There are many different screens available in the pH COND OPERATION screen These screens allow you to 5 76 90 view the unit s settings incl time setting relay set ups total flow etc without the danger of altering them Access these screens by using the RO MACHINE RUN TIME and Vv keys to scroll through the available Press ENT to manually enable a relay for testing or troubleshooting purposes TEMP 25 Press PRO to calibrate the conductivity Press CLR to access the main menu TOTAL PERM 0 ALARMS FLASHING TOTAL FEED 0 PRO CALIB ENT RELAYS PERM CONC 0 0 0 0 COND REC 0 0 0 PRO CALIB ENT RELAYS uS 89 PERM 0 0 PERM 0 GPM COND REC 0 0 0 PRO CALIB ENT RELAYS H 5 58 ALARMS FLASHING FEED 0 GPM PRO CALIB ENT RELAYS 24
17. 35 5 72 SIG S 37 6 7 3 Autotrol Turbines 1 Inch Or 2 Inch 39 6 7 4 Feed FIOW eiiis aiu auos dE cr ecd 41 6 8 4 20 MA OUITDUIS ci adr 42 6 8 1 Set the 4 20 mA 43 6 8 2 Calibrate 4 20 MA rr e ana 43 6 8 3 Which amp 2 44 6 8 4 Manual Control 44 6 8 5 Change My 44 6 9 System Setup PM 45 6 9 1 Process Parameters 45 5 9 E TDI sora oae e Redi u efe a pi ED 45 6 9 1 1 1 pH ORP Change 46 6 9 1 1 2 pH ORP Stand By Mode 46 6 9 1 1 3 pH ORP Change to 47 6 9 1 2 Conductivity one co odio cle ca Celi Lex Roa Ex dal vida 47 6 9 1 2 1 Cond Change My 47 6 9 1 2 2 Cond Preamp Setup 48 6 9 1 2 3 Cond Cell Constant 49 6 9 1 3
18. AIL IWAECTLY INTO TELEPHONE LINES cowe GER 205 Ff UNLESS OTHERWISE SPECIFIED STANDARD FOUR CONDUCTOR TELEPHONE CABLE UP TO 50 FEET IN LENGTH BE SUBSTITUTED PERSONAL COMPUTER WITH MODEM DO NOT PLUG RS2L DIRECTLY INTO TELEPHONE LINBS 1 7309 CON 15 LLL eM 1 GARE E eS WOOL POM M 2990 7 ee CONNECT d SS e TE NOTES UNLESS OTHERWISE SPECIFIED 1 LOADS MUST SE LESS THAN 600 4 20 QUT TAA lim OUT i e 4 20 A is 20mA OUT 94 20 D 4 20mA QUT Ej Cx INTERNAL POWER OPTIONAL EXTERNAL 24 VDC SUPPLY 4 20 II goo r3 aC Coe WANG DIAGRAM 2406 4 TO 20 m teen Im For more information call toll free the USA 800 228 0839 Manufactured in the USA Lakewood Instruments 7838 North Faulkner Road Milwaukee WI 53224 USA Phone 800 228 0839 Fax 414 355 3508 http www lakewoodinstruments com
19. CTORY SERVICE Technical Support for Lakewood Instruments can be reached by calling 800 228 0839 or faxing 414 355 3508 Monday through Friday 7 30 a m 5 00 p m CST NOTE IF YOU CALL FOR TROUBLESHOOTING HELP PLEASE HAVE THE MODEL NUMBER SERIAL NUMBER AND ANY OPTIONS PERTAINING TO YOUR UNIT AVAILABLE FOR REFERENCE Mail and returns should be sent to Lakewood Instruments 7838 North Faulkner Road Milwaukee WI 53224 USA When any merchandise is to be returned to the factory please call and obtain a Return Goods Authorization RGA number and have the following information available Customer s name address telephone and fax numbers shipping and billing hard copy purchase order number for cases where repairs or parts are required that are not under warranty contact person s name and telephone number to call if the equipment is beyond repair or to discuss any other warranty matter Equipment model and serial numbers Reason for return e g repair warranty incorrect part etc We will then fax to your attention an RGA form that must accompany the returned item NOTE THE RGA NUMBER MUST BE CLEARLY WRITTEN ON THE OUTSIDE ANY ITEMS SENT BACK TO THE FACTORY WITHOUT AN RGA NUMBER WILL BE REFUSED AND RETURNED TO SENDER 65 10 0 DRAWINGS 1 E nalt 8 AS Rat emo TEIR
20. LAKEWOOD INSTRUMENTS MODEL 2450e MICROPROCESSOR BASED REVERSE OSMOSIS MONITOR INSTALLATION amp OPERATION MANUAL SERIAL Lakewood Instruments 7838 North Faulkner Road Milwaukee Wisconsin 53224 USA Phone 800 228 0839 Fax 414 355 3508 http www lakewoodinstruments com IMPORTANT NOTICE CAUTION CHEMICAL FEED All electromechanical devices are subject to failure from a variety of causes These include mechanical stress component degradation electromagnetic fields mishandling improper setup physical abuse chemical abuse improper installation improper power feeds and exposure While every precaution is taken to insure proper functioning extra precautions should be taken to limit the ability of over feeding by limiting chemical quantities available secondary shut downs alarms and redundancy or other available methods CAUTION POWER SOURCE AND WIRING Low voltage wiring and high voltage 110 plus should not be run in the same conduit Always run separately Even shielded low voltage is not a guarantee of isolation Every precaution should be taken to insure proper grounding and elimination of shorting or Electromagnetic field EMF interference Lakewood Instruments We thank you for your selection and purchase of a Lakewood Instruments product With proper care and maintenance this device should give you many years of trouble free service Please take the time to read and understand this Installat
21. NITS OF VOLUME This screen is used to configure the units of volume to be displayed to Gallons Liters or Cubic Meters UNITS OF VOLUME 1 GALLONS 2 LITERS 3 CUBIC METERS Press 1i for GALLONS 2 for LITERS or press 3 for CUBIC METERS 38 NUMERIC PRECISION This screen is used to display one digit to the right of the decimal point when displaying the flow rate of this flow meter The user can select the flow rate BELOW which the decimal point is activated DISPLAY ONE DIGIT TO THE RIGHT OF THE DECIMAL IF THE FLOW RATE DROPS BELOW THIS VALUE 20 ca Use the keypad to enter the FLOWRATE value then press ENT CHANGE MY NAME The name of flow meter input can be changed to any 4 character name OLD PERM NEW PERM lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 6 7 3 AUTOTROL TURBINES 1 INCH OR 2 INCH If an AUTOTOL 1 IN or 2 IN turbine is selected the following screen will appear 1 RESET TOTAL FLOW 2 UNITS OF VOLUME 3 NUMERIC PRECISION 4 CHANGE MY NAME 39 RESET TOTAL FLOW This screen is used to reset the total flow for this input back to zero PERM RESET TOTAL COUNTS 1 YES Select 1 YES to reset the total flow to zero Select 2 NO to keep the current flow meter total UNITS OF VOLUME This screen is used to configure th
22. NS The pH ORP has exceeded the user programmed high alarm value The pH ORP has exceeded the user programmed low alarm value The conductivity has exceeded the user programmed high alarm value The temperature has exceeded the user programmed high alarm value The permeate flow rate has exceeded the user programmed high alarm value The permeate flow rate has exceeded the user programmed low alarm value The feed water flow rate has exceeded the user programmed high alarm value The feed water flow rate has exceeded the user programmed low alarm value The percent recovery has exceeded the user programmed high alarm value The lubrication interval timer has expired The Check CIP interval timer has expired The Check Filters interval timer has expired 63 CORRECTIVE ACTION See ALARMS in Main Menu ALARMS in Main Menu ALARMS in Main Menu ALARMS in Main Menu ALARMS in Main Menu ALARMS in Main Menu ALARMS in Main Menu ALARMS in Main Menu ALARMS in Main Menu See SYSTEM SETUP TIMERS to reset the timer See SYSTEM SETUP TIMERS to reset the timer See SYSTEM SETUP TIMERS to reset the timer PROBLEM ALARM FLASHING CHECK MEMBRANES ALARM FLASHING CHECK SENSOR ALARM FLASHING COND FOULED SENSOR ALARM FLASHING SHORTED TC ALARM FLASHING O
23. OND Press 3 CELL CONSTANT CELL CONSTANT 0 100 Use the keypad to enter the CELL CONSTANT as per the table above and press the ENT key 6 9 1 3 TEMPERATURE The temperature input is provided by the conductivity sensor The temperature process parameters screen allows the user to change the name of the temperature input and configure the temperature compensation input From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select TEMP TEMPERATURE 1 CHANGE MY NAME 2 TEMP COMPENSATION 49 6 9 1 3 1 The name of the temperature input can be changed to any four character From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select TEMP Press 1 CHANGE MY OLD TEMP NEW TEMP lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 6 9 1 3 2 TEMP TEMP COMPENSATION The temperature input is provided by the conductivity sensor The temperature compensation must be set up for the sensor that is used Refer to the following table for the temperature compensation values for Lakewood Instruments conductivity sensors 540K 1 540K 01 543M 543L 543LL TEMP COMP 500 NTC 500 4 4 1K PTC
24. PENED TC ALARM FLASHING pH REF IMPEDANCE or REF IMPEDANCE ALARM FLASHING pH BROKEN GLASS ALARM FLASHING pH REF VOLTAGE or HIGH REF VOLTAGE ALARM FLASHING pH LOW REF VOLTAGE or ORP LOW REF VOLTAGE ALARM FLASHING CIP SWITCH CLOSED WHAT THIS MEANS The Check Membranes interval timer has expired The Check Sensor interval timer has expired The conductivity sensor has become fouled The temperature compensation input is shorted The temperature compensation input is opened A high reference impedance exists in the pH ORP sensor A wire may be broken in the sensor KCI solution in the sensor may be leaking pH only The pH sensor glass may be broken High reference voltage exists in the pH ORP sensor Low reference voltage exists in the pH ORP sensor The Clean in Place switch input condition has become asserted Relays are locked out 64 CORRECTIVE ACTION See SYSTEM SETUP TIMERS to reset the timer See SYSTEM SETUP TIMERS to reset the timer Check cable sensor and wiring Check cable sensor and wiring Check cable sensor and wiring Replace pH ORP Sensor Sensor must be grounded Check glass bulb on the pH sensor Replace sensor if necessary Check sensor wiring Check sensor wiring None unless the input is wired incorrectly 9 0 FA
25. S OF VOLUME 1 GALLONS 2 LITERS 3 CUBIC METERS Press 1 for GALLONS press 2 for LITERS or press 3 CUBIC METERS 36 NUMERIC PRECISION This screen is used to display one digit to the right of the decimal point when displaying the flow rate of this flow meter The user can select the flow rate BELOW which the decimal point is activated DISPLAY ONE DIGIT TO THE RIGHT OF THE DECIMAL IF THE FLOW RATE DROPS BELOW THIS VALUE 20 ca Use the keypad to enter the FLOWRATE value then press ENT CHANGE MY NAME The name of flow meter input can be changed to any 4 character name OLD PERM NEW PERM lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 6 7 2 SIGNET If SIGNET is selected the following screen will appear 3 UNITS OF VOLUME 4 NUMERIC PRECISION 5 CHANGE MY NAME 37 RESET TOTAL FLOW This screen is used to reset the total flow for this input back to zero PERM RESET TOTAL COUNTS 1 YES Select 1 YES to reset the total flow to zero Select 2 NO to keep the current flow meter total K FACTOR This screen is used to configure the monitor for your particular Signet flow meter PERM 000 000 PRO Use keypad to enter the factor value for your particular flow meter then press ENT U
26. To set up the Temperature Compensation From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select TEMP Press 2 TEMP COMPENSATION TEMP COMPENSATION 2 500 NTC 3 4K NTC 4 10K NTC 5 100 PTC 6 1 7 8 10 Use the arrow keys to highlight the TEMP COMPENSATION value and press the ENT key The asterisk indicates the current configuration 50 6 9 1 4 Percent Recovery The 96 recovery process parameters screen allows the user to change the name of the 96 recovery input 6 9 1 4 1 REC CHANGE MY NAME The name of the 96 recovery input can be changed to any four character name From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select REC Press 1 CHANGE MY NAME OLD lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 51 6 9 2 INITIALIZATION Initialization restores the factory default settings to the monitor whole controller can be initialized or just the calibrations This will clear any random settings that may be in the monitor To initialize the calibrations From the Main Menu press 6 SYSTEM SETUP Press 2 INITIALIZATION Press 1 CALIBRATIONS The WHICH INPUT DEVICE screen will appear WHICH INPUT DEVICE Use the arrow keys to highlight the input to init
27. XT ALARM 0 00 RESET TIMER Press 1 YES to reset the alarm timer to the user programmed time 54 To set the timer press 2 SET TIMER THE CONTROLLER WILL ACTIVATE A TIMER ALARM AFTER THIS NUMBER OF HOURS 500 00 PRO Use keypad to the timer and press the ENT key 6 9 6 Diagnostics The diagnostics screen is used for troubleshooting purposes Contact Lakewood Instruments for assistance 6 9 7 Communications The model 2450e has an option for remote communications the RS2L option If this option is installed the communications option is configured from this screen This screen is used to set up the com port initialize the modem and set the remote password To set up the communications option From the Main Menu press 6 SYSTEM SETUP Press 7 COMMUNICATIONS COMMUNICATIONS 1 COM PORT SETUP 2 INITIALIZE MODEM 3 REMOTE PASSWORD 55 6 9 7 1 Com Port Setup Com port setup is used to set up the com port for use with a modem or direct connect To setup the com port press 1 COM PORT SETUP COM PORT PARAMETERS BAUD RATE 19200 DATA BITS 8 STOP BITS 1 PARITY NONE lt UP gt lt DOWN gt ENT ACCEPT Use the arrow keys to change the baud rate If using the direct connect method of communicating ensure that the baud rate at the controller and the baud rate in the LRWS software match
28. ad to enter the 20 MA value then press ENT 6 8 2 CALIBRATE 4 20 mA The 4 20 mA needs to be calibrated to the actual output to be accurate A milliamp meter is necessary to calibrate the 4 20 mA output Connect the milliamp meter in line with one leg of the 4 20 mA output Refer to the drawing in the back of this manual for wiring instructions e From the 4 20 mA Setup screen press 2 CALIBRATE 4 20 MA The screen will show the current 4 mA reading MILLIAMPS 4 00 Use the keypad to enter the milliamp reading from the milliamp meter for the 4 mA point Press ENT The screen will show the current 20 mA reading MILLIAMPS 4 00 MILLIAMPS 20 00 e Use the keypad to enter the milliamp reading from the milliamp meter for the 20 mA point Press ENT 43 6 8 3 WHICH PROCESS The four channels of 4 20 mA output can be configured to pH conductivity temperature permeate flow rate concentrate flow rate feed flow rate or percent of recovery From the 4 20 mA Setup screen press 3 WHICH PROCESS WHICH INPUT DEVICE Use the up and down arrow keys to select the process that will control that channel of 4 20 mA output Press ENT 6 8 4 MANUAL CONTROL Manual control is used to temporarily change the 4 20 mA output From the 4 20 mA Setup screen press 4 MANUAL CONTROL MANUAL 4 20 CONTROL 4 8 12 16 20 lt DOWN UP gt CLR EXIT e Use the up and
29. bers to enter the deadband value and press ENT You will automatically be switched to the TIMEOUT alarm screen 6 5 1 2 3 TIMEOUT The TIMEOUT alarm is designed to notify the operator of a problem in the system such as a pump has lost its prime or there is no chemical in the drum It will also protect the system from overfeeding chemical when the indicated input does not display a change in actual reading The TIMEOUT function will display a visual alarm on the display and it will turn off the relay relay is configured as alarm relay the TIMEOUT alarm will energize the alarm relay Use the keypad to enter the time in hours and minutes before this alarm will appear and press ENT Maximum setting is 17 hours and 59 minutes To disable this function set the OVERFEED time to 0 00 6 5 1 2 4 SETPOINT DIRECTION After configuring the SETPOINT the DEADBAND and the TIMEOUT alarm the monitor will automatically move to the SETPOINT DIRECTION screen To set up to operate the relay on a rising reading select DIRECT to activate above the setpoint To set up to operate on a falling reading select REVERSE to activate below the setpoint SETPOINT DIRECTION 1 DIRECT 2 REVERSE Select 1 DIRECT to turn on the relay when the reading rises above the setpoint or select 2 REVERSE to turn on the relay when the reading falls below the setpoint 31 6 5 1 3 AUTO FLUSH The AUTO FLUSH feature is designed to
30. e instruction to PRESS ANY KEY Once you press any key on the keypad the SETPOINT OPTIONS screen will appear SETPOINT OPTIONS 1 SETPOINT VALUES 2 SETPOINT DIRECTION To program the setpoint select 1 SETPOINT VALUES To set the direction of operation select 2 SETPOINT DIRECTION 6 5 1 2 1 SETPOINT In the SETPOINT VALUES screen you will set the SETPOINT the DEADBAND and the TIMEOUT alarm SETPOINT 0 US DEADBAND 0 US HA ENT ACCEPT The SETPOINT is the input device value that you are trying to maintain Check with your water treatment engineer to determine the setpoints for your system needs e Use the keypad to enter the setpoint and press ENT You will automatically be moved down to the deadband 30 6 5 1 2 2 DEADBAND After the setpoint is established the relays deadband must also be set Deadband refers to the amount of reading above and below the setpoint a range within which the controller will not react Due to continuous fluctuations in the input level it is necessary to have this deadband range or stable readings will be difficult to obtain The Deadband should be a small percentage of the setpoint Half the deadband amount will be automatically put above the setpoint and the other half below it For example a Conductivity setpoint of 100 uS with a deadband of 10 uS would result in the relay turning on at 105 uS and turning off at 95 15 Use the keypad num
31. e units of volume to be displayed to Gallons Liters or Cubic Meters UNITS OF VOLUME 1 GALLONS 2 LITERS 3 CUBIC METERS Press 1 for GALLONS press 2 for LITERS or press 3 for CUBIC METERS NUMERIC PRECISION This screen is used to display one digit to the right of the decimal point when displaying the flow rate of this flow meter The user can select the flow rate BELOW which the decimal point is activated DISPLAY ONE DIGIT TO THE RIGHT OF THE DECIMAL IF THE FLOW RATE DROPS BELOW THIS VALUE 20 ca Use the keypad to enter the FLOWRATE value then press ENT 40 The name of flow meter input can be changed to any 4 character OLD PERM NEW PERM lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 6 7 4 FEED FLOW The Feed Flow indication is the sum of the Permeate and Concentrate flow meter inputs it does not have its own wired input The name of FEED input can be changed to any 4 character name OLD FEED NEW FEED lt UP gt lt DOWNSENT ACCEPT Use the arrow keys to change the character and the ENT key to move to the next character 41 6 8 4 20 mA OUTPUTS The 35L option card adds two channels channels A and B of 4 20 mA output The addition of the 35L2 option card adds two additional 4 20
32. e your password contact Lakewood Instruments for assistance 6 9 4 SOFTWARE VERSIONS Sometimes it is necessary to verify the software versions of the controller for troubleshooting purposes To obtain the software versions From the Main Menu press 6 SYSTEM SETUP Press A SOFTWARE VERSIONS The software versions will be displayed Use the arrow keys to view all software versions To exit this screen press CLR 53 6 9 5 TIMERS The model 2450e includes timers for machine run time lubrication interval check CIP check filters check membranes and check sensor The machine run time timer keeps track of actual machine run time and counts up All the other timers are based on machine run time and count down from a user programmed machine run time and will trigger timer alarms notifying the user that an action needs to be performed The timer setup screens allow the user to reset the timers to zero and in the case of all timers except the machine run time allow the user to set the number of hours until the timer alarm occurs To access the timers From the Main Menu press 6 SYSTEM SETUP e Press 5 TIMERS TIMERS 1 MACHINE RUN TIME 2 LUBRICATION 3 CHECK CIP 4 CHECK FILTERS 5 CHECK MEMBRANES 6 CHECK SENSOR Use the arrow keys to highlight the timer and press the ENT key 1 VIEW RESET TIMER To view or reset the timer press 1 VIEW RESET TIMER TIME IN HOURS MINS TILL NE
33. er friendly with a graphical screen and 16 key numeric keypad A large illuminated graphics screen multiple inputs and an intuitive menu characterize this new technology It accepts multiple inputs and is easily configured This controller can easily be upgraded in the field It s a combination of reliability accuracy security and simplicity 10 2 0 Benefits Features Specifications Figure 1 Model 2450e Heverse Osmosis Monitor FEATURES Uses 2 electrode conductivity sensor with MNPT process connection Uses differential pH sensor with MNPT process connection pH input can be configured for ORP sensor Two water meter inputs for Permeate and Concentrate flow rates e RS232 output for remote monitoring control and data acquisition RS2L Input for lockout e Includes Real Time Clock RTC SPECIFICATIONS Inputs Power 80 300 VAC Sensor 2 or 4 electrode Conductivity pH or ORP differential None 500 NTC 4K NTC Temperature comp CIP switch Dry contact Water Meter Inputs Two open collector type Outputs Relays 3 Amps 120 VAC 4 20 mA Two isolated w 35L RS232 Requires Windows based PC w RTC RS2L T 11 BENEFITS he Model 2450 uses LONWoRKs Technology that is the latest in microprocessor capability giving the user the highest level of application flexibility illuminated graphics screen multiple inputs and very easy setup with easy field upgrade charact
34. erize this new technology Water meters and sensors are purchased separately System run timer 5 Count down timers A large Lubrication interval Check CIP Check Filters Check Membranes Check Sensor e Four relays have user selectable options pH ORP setpoint Conductivity setpoint Temperature setpoint Permeate flow setpoint Concentrate flow setpoint Percent recovery setpoint Auto Flush Various Alarms e 4 20 mA output for 35L select any four pH ORP conductivity temperature concentrate flow permeate flow percent recovery Monitor pH Range pH Accuracy pH Resolution ORP Range ORP Accuracy ORP Resolution Conductivity Range Conductivity Accuracy Conductivity Resolution Deadband Setpoints Keypad Display Ambient Temperature Enclosure RATING 0 14 pH 0 05 pH 0 01 pH 1000 to 1000 mV 5 1 0 100 or 0 1000 with proper sensor 1 or 10 uS with proper sensor 1 or 10 with proper sensor Adjustable Direct or Reverse Numeric Illuminated 128x64 pixel LCD 32 158 F 0 70 C NEMA 4X ANSI UL 2 1 Ordering Information RS232 4 20 mA output 1 4 channels Permeate Conductivity Switch and Temperature 2450 Permeate Feed pH Permeate Flow Feed Water Acid Pump Relay 1 Concentrate Concentrate Flow
35. ialize and press the ENT key WARNING THIS OPTION REQUIRES RE CALIBRATION AND RE PROGRAMMING PROCEED Use the arrow keys to highlight 1 YES and press the ENT key To initialize the whole controller From the Main Menu press 6 SYSTEM SETUP Press 2 INITIALIZATION Press 2 WHOLE CONTROLLER WARNING THIS OPTION REQUIRES RE CALIBRATION AND RE PROGRAMMING PROCEED Use the arrow keys to highlight 1 YES and press the ENT key NOTE Initializing the WHOLE CONTROLLER deletes all user settings and will require reprogramming the Whole Controller 52 6 9 3 SECURITY CHANGE THE PASSWORDS The security password can be changed from the factory default settings to any four digit value of your choice To change the security passwords From the Main Menu press 6 SYSTEM SETUP Press 3 SECURITY CHANGE PASSWORD 1 OPERATOR 2 TECHNICIAN Press 1 OPERATOR to change the operator password or Press 2 TECHNICIAN to change the technician password TECHNICIAN PASSWORDS ARE 4 KEYS ENTER A NEW PASSWORD OLD PASSWORD NEW PASSWORD VERIFY EUN Use the keypad to enter the old password the password has not been changed before the old password for OPERATOR is 1111 and the password for TECHNICIAN is 2222 Use the keypad to enter the new password Use the keypad to enter the new password a second time for verification If you los
36. ill need to be removed and the incoming power and the relay outputs will need to be hard wired The incoming power is connected to terminal block TA at the bottom right corner of the power supply board There is a hot or line input terminal 4 a neutral input terminals 2 and 3 and an earth ground input terminal 1 The hot is wired to the fuse holder located on the bottom of the enclosure The neutrals are wired directly to terminals 2 and 3 of terminal block TA Refer to the drawing in the back of this manual for wiring instructions 3 4 2 Relay Wiring The relay outputs are of the same voltage as the power input Ensure that the devices that are to be connected to the relay outputs are of the same voltage rating or damage will occur The relay outputs are wired to the receptacles The receptacle on the far left is relay 1 and the receptacle on the far right is relay 4 On the power supply board relay 4 is on the far left and relay 1 is on the far right If 115 VAC is used simply plug your devices into the molded receptacles If 230 VAC is used remove the receptacles and hard wire your devices to the relay outputs Relay 1 and 2 have both a normally open and normally closed contact This is designed for use with motorized valves The normally open NO contact is connected to the open connection of the valve and the normally closed NC contact is connected to the close connection of the valve The other two relays only have a norma
37. in the center of a buffer solution Perform the calibration check as follows Initialize the calibrations Shut down the system and remove the pH or ORP sensor Place the sensor into the buffer solutions Verify calibrations in at least two buffer solutions at least 2 pH or 200 mV apart Re install the sensor into the plumbing Perform a single point calibration if necessary 27 6 4 The MAIN MENU of the 2450e looks like this MAIN MENU OPERATION RELAYS ALARMS FLOW METERS 4 20 MA OUTPUTS SYSTEM SETUP CLOCK The MAIN MENU can be accessed from the OPERATION screen by pressing CLR If CLR is pressed and the MAIN MENU does not appear the controller is probably in the VIEW ONLY or OPERATOR security mode If the controller is in the VIEW ONLY or OPERATOR security mode enter the TECHNICIAN security password to be able to access the MAIN MENU To move about in the menu screen use the keys to highlight the desired option and press ENT or simply press the number key for the desired option Use the ENT key to accept a setting or to enter a screen Use the CLR key to reject a setting or to exit a screen From anywhere in the menu pressing CLR will take you one step closer to the MAIN MENU Certain menu items are only visible if certain conditions apply such as option cards are installed or other parameters are configured If a menu item does not appear in the menu it most li
38. ion and Operation Manual paying special attention to the sections on OPERATION MAINTENANCE If in the future any parts or repairs are required we strongly recommend that only original replacement parts be used Customer Service Department is happy to assist you with your parts or service requests Lakewood Instruments Customer Service and Technical Support Departments can be reached by calling 800 228 0839 or faxing 414 355 3508 Monday through Friday 7 30 a m 5 00 p m CST Mail should be sent to Lakewood Instruments 7838 North Faulkner Road Milwaukee WI 53224 USA MODEL 2450e Table of Contents 1 0 INTRODUCTION 10 2 0 Benefits Features 11 2 1 Ordering Information nnmnnn 12 2 2 Front Panel 13 3 0 Unpacking Mounting and Installation 14 Sel MIND AGC KING 14 3 2 Mounting the Enclosure 14 3 3 Sensor Installation sisisi iiaiai 15 3 3 1 Conductivity Sensor Plumbing 15 3 3 2 Conductivity Sensor 15 3 3 3 pH ORP Sensor Plumbing eese 16 3 3 4 pH ORP Sensor
39. kely means that the option is not installed or configured Each of the MAIN MENU options is discussed in detail later in this manual 28 6 5 Configuring Relays To access the relay configuration screen from the MAIN MENU press 2 or highlight RELAYS and press ENT The following screen will appear WHICH RELAY Select the relay that you want to program 6 5 1 RELAY OPTION SCREEN Below is the RELAY OPTIONS screen The asterisk next to one of the options tells you how that relay is configured There are multiple methods that the relays can be configured to operate When a relay is selected for programming the following screen will appear RELAY OPTIONS 1 DISABLED 2 SETPOINT CONTROL 3 AUTO FLUSH 4 ALARM RELAY 5 CHANGE NAME 6 CIP LOCKOUT 6 5 1 1 Disabled The relays can be disabled When a relay is disabled it will not energize automatically From the RELAY OPTIONS screen press 1 Disabled to disable the relay 29 6 5 1 2 SETPOINT CONTROL The relays can be configured to operate based on a setpoint from any of the inputs such as pH or ORP CONDUCTIVITY TEMPERATURE PERMEATE FLOWRATE CONCENTRATE FLOWRATE FEED FLOWRATE and PERCENT OF RECOVERY When setpoint control is selected the following screen will appear WHICH INPUT DEVICE Select the desired input for setpoint control You will be taken to a screen that lists that input with th
40. l However a list of only six options can be viewed at one time Use the keys to scroll through the options an introduction here is graphic overview of the first level of each option in the Main Menu to see how it operates Complete details of each option are provided later in this manual MAIN MENU 1 OPERATION 2 RELAYS 3 ALARMS 4 FLOW METERS 5 4 20 MA OUTPUTS 6 SYSTEM SETUP 7 CLOCK 2 WHICH INPUT DEVICE WED 28 AUG 96 1 pH ORP 1 PROCESS PARAMETERS 2 COND 2 INITIALIZATION 3 TEMP 3 SECURITY 4 PERM 4 SOFTWARE VERSION 05 42 40 5 5 TIMER 6 FEED 6 DIAGNOSTICS 7 REC 7 COMMUNICATIONS PRO CHANGE CLR EXIT 19 4 4 Security Levels The model 2450e has a security levels to prevent tampering of the controller The Model 2450e offers three 3 security levels 1 View Only 2 Operator and 3 Technician When the controller is in the View Only or Operator security level the menu is locked out In View Only access is limited to manual operation of the relays and viewing all of the process screens In the Operator mode the user can operate the relays manually view the process screens and calibrate the controller He cannot change any other settings In the Technician mode the operator has full access to all of the menus A password is required to change from a tight security level to a less restrictive security level Each level has its own factory preset password
41. ll foul the sensor If there is oil on the sensor glass use isopropyl alcohol to clean the electrode It is recommended that you use a 10 Muriatic or HCL acid to clean the sensor if necessary Wash the sensor off with tap water Install the sensor in its plumbing Restore sample flow and check for leaks Restore power to the controller Perform a calibration of the Conductivity 59 7 1 2 pH ORP Sensor Clean the electrode end of the pH or sensor at least once per month Cleaning of the pH or ORP sensor may need to be performed more frequently if it is in a high fouling environment Remove power from the controller and shut off the sample flow Remove the sensor from its plumbing Be careful not to touch the glass electrode Do not use cloth to clean the electrode Cloth has oils that will foul the sensor If there is oil on the sensor glass use isopropyl alcohol to clean the electrode It is recommended that you use a 10 Muriatic or HCL acid to clean the sensor Wash the sensor off with tap water Install the sensor in its plumbing Restore sample flow and check for leaks Restore power to the controller Allow the reading to stabilize for approximately 30 minutes Perform a calibration of the pH or ORP 7 2 Replacing the Fuse The Model 2450e contains a 10A 250V fuse The fuse holder is located on the bottom of the enclosure It is accessible from the outside of the box Replacement fuses must be a fast blo
42. lly open contact Each relay output requires a neutral connection and an earth ground connection for proper operation Refer to the drawing in the back of this manual for wiring instructions WARNING DO NOT PLUG IN CHEMICAL PUMPS THAT ARE LARGER THAN 16 HORSEPOWER THE CONTROL RELAYS ARE INTENDED FOR ELECTRONIC OR SMALL MOTOR DRIVEN CHEMICAL PUMPS LARGER PUMPS REQUIRE THE HR OPTION WITH 25 AMP RATED INTERPOSING RELAYS CONTACT LAKEWOOD INSTRUMENTS FOR SPECIAL INSTRUCTIONS 3 4 3 Switch Wiring The model 2450e has a CIP switch input The purpose of the CIP switch input is to disable the relay outputs for cleaning the system The CIP switch input requires a digital contact Any digital contact rated for 24 VDC and 500 mA may be used 3 4 4 Water Meters Wiring The Model 2450e will accept two water meter inputs a Permeate and a Concentrate Refer to the water meter manufacturers manual for plumbing information The 2450e monitor will work directly with the following types of meters Seametrics open collector output meters Signet 2535 and 2540 paddle wheel meters and the Autotrol 1 inch and 2 inch meters Contact Lakewood Instruments for other types of water meters The water meters are wired to terminal block P1 which is the top terminal block on the I O board Refer to the drawing in the back of this manual for wiring instructions 3 4 5 4 20 mA Output Wiring If the 35L option is ordered the model 2450e has
43. nance can be performed 3 3 4 pH Sensor Wiring The model 2450e will accept the model 520 pH sensor The pH sensor is wired directly to the board inside the controller The 520 series sensors have 4 wires and a coaxial cable with a BNC fitting They are as follows center pH signal Shield not used Black wire Temp Compensation Red wire Temp compensation e White wire Solution GND e Green wire Reference For wiring instructions please refer to the drawings at the back of this manual The maximum allowed cable length between the sensor tip and the controller is fifteen 15 feet Cable length of pH sensors is measured from the electrode tip to the end of the wire Lakewood Instruments guarantees operation up to 15 feet If a cable extension is used Lakewood Instruments will not guarantee operation of the sensor Remember to install isolation and bypass valves so that maintenance can be performed If you have questions or need assistance call Lakewood Instruments Technical Service Department at 800 228 0839 Monday Friday 7 30 a m 5 00 p m CST 16 3 4 Electrical Installation 3 4 1 Incoming Power 115 230 VAC The Model 2450e can be powered from either 115 VAC or 230 VAC at 50 60 Hz The Model 2450e controller comes with a power cord and receptacles The power cord and receptacles are rated for 115VAC If the controller will be powered by 230 VAC the power cord and receptacles w
44. ng to stabilize To reduce electrical noise use grounded metal fittings on the inlet and outlet of the Monitor plumbing There may be a wiring problem The K factor is improperly configured If using a turbine meter verify that turbine is actually spinning Check that all boards are mounted correctly and that all connectors are fully mated The Monitor may not have the option board that is trying to be accessed The board that is trying to be accessed may not be working PROBLEM Display is blank reading is off by more than 1 pH unit mV reading is off by more than 100 mV Relays don t turn ON OFF during normal operation Chemical pump will not feed chemical Chemical pump feed reverse WHAT THIS MEANS Open the front panel Look at the yellow LED s on the rear power board Are they on Probe calibrated using span or the pH probe is bad ORP Probe might be inaccurate Relays may be affected by other software variables Pumping may be affected by other software variables CORRECTIVE ACTION If LED s are on check ribbon cable 1 it properly seated If LED s are not on does the unit have power Re initialize calibration Recalibrate pH using zero only Replace pH sensor Re initialize calibration Recalibrate zero span or both Replace ORP sensor Is the relay manually turned on or off Is the CIP input activated You must have permeate or concentra
45. o all alarms that are currently selected 32 6 5 1 5 The name of each individual relay can be changed to any 4 character name This is useful to designate the chemical name for each relay Use the arrow keys to change the character and the ENT key to move to the next character OLD RLY2 NEW INH lt UP gt lt DOWNSENT ACCEPT From the RELAY OPTIONS screen 5 5 CHANGE MY 6 5 1 6 CIP Lockout Each individual relay can be locked out during a Clean In Place operation The relay will be locked out when the CIP switch input registers a contact closure and the CIP SWITCH CLOSED alarm will be displayed on the Operation screen To lockout a relay during CIP operations select 6 CIP LOCKOUT from the relay options screen for each relay you want to lock out LOCK OUT THIS RELAY WHEN CIP SWITCH IS CLOSED 1 YES 2 NO Select 1 YES to lock out the relay during CIP operations Select 2 NO to allow the relay to operate normally during CIP operations An asterisk appears next to the current selection 33 6 6 Configuring the Alarms The Model 2450 is equipped with multiple alarms This menu option allows you to program the specific values for these alarms When an alarm is received it will appear as a flashing message in the middle of the Operation screen and any configured alarm relays will be activated Consult your wa
46. ond Range 540 K 1 540 K 01 543M 543L 543LL 1 10 Range 4 Range 3 2 2 10 100 Range 3 Range Range 2 Range 2 100 500 Range 2 Range 2 Range 2 100 1000 Range 2 2 1000 10000 1 10000 100000 Range 0 PREAMPLIFIER SETTINGS FOR THE MODEL 2450 Range 0 Range 2 Range3 Range 4 Voltage Gain 100 10 10 10 1 Sample R 20 20 200 2K 2K Drive Freq 500 Hz 500 Hz 500 Hz 500 Hz 30 Hz To set up the preamp From the Main Menu press 6 SYSTEM SETUP e Press 1 PROCESS PARAMETERS Select Cond e Press 2 PREAMP SETUP Use the arrow keys to change the VOLTAGE GAIN use the ENT key to move COND PREAMP SETUP VOLTAGE GAIN SAMPLE R DRIVE FREQ 10 2K 500 HZ lt UP gt lt DOWNSENT ACCEPT the cursor to the SAMPLE R e Use the arrow keys to change the SAMPLE use the ENT key to move the cursor to the DRIVE FREQ e Press ENT to accept the settings 48 6 9 1 2 3 COND CELL CONSTANT The cell constant must be set up for the conductivity sensor that is used Refer to the following table for the cell constants for Lakewood Instruments conductivity sensors CELL CONSTANTS 540 1 540K 01 543M 543L 543LL 0 1 0 01 0 30 0 03 0 07 To set up the Cell Constant From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select C
47. onductivity tester From the Operation screen press PRO to enter the calibration screens Press 2 COND Use the keypad to input the conductivity reading from the hand held Press ENT e Take another hand held sample to verify calibration 6 3 2 CALIBRATION OF pH ORP The model 2450e monitor uses a single point calibration A two point calibration is not necessary if using a Lakewood Instruments pH sensor because all Lakewood sensors have a slope of 59 14 mv per pH If the slope has changed enough to require a two point calibration then the sensor should be cleaned or replaced We recommend that the pH calibrations only be performed with the sensor mounted as it will be used in the system Buffers can be used to check calibrations but should not be used for calibration purposes It is necessary to have an accurate reading of the process water to properly calibrate the controller A hand held meter that tests the sample is best Once you have obtained a reading immediately enter the value into the controller the operation screen e Press PRO Select pH Select either ZERO or SPAN see below Use the number keys to enter the value and then press ENT Take a second sample with a hand held pH meter and confirm the reading on the display 26 6 3 2 1 ZERO or SPAN The model 2450e monitor is capable of performing a two point calibration using both the ZERO and SPAN calibrations The operator must pick ei
48. ors have 6 wires They are as follows Black wire Electrode Red wire Electrode e White wire Electrode e Green wire Electrode e Black wire Temp compensation e Black wire Temp compensation The 540 series sensors have 4 wires They are as follows e Black wire Outer Electrode Red wire Center Electrode e White wire Temp compensation e Green wire Temp compensation For wiring instructions please refer to the drawings at the back of this manual The maximum allowed cable length between the sensor tip and the controller is twenty 20 feet Cable length of conductivity sensors is measured from the electrode tips to the end of the wire Lakewood Instruments guarantees operation up to 20 feet If a cable extension is used Lakewood Instruments will not guarantee operation of the sensor 15 3 3 3 pH Sensor Plumbing The pH sensor should be mounted vertically with the glass bulb facing down It may be mounted at an angle as long as it is no more than 75 from the vertical position see DWG 1240520 1 in the back of this manual Due to the bubble position however the preferred mounting angle is no more than 45 from vertical The sensor must also be mounted in a location so that it is always wet If is located in a pipe or tank with variable fluid levels it is important that the sensor is installed where it can remain wet Failure to do so will damage the sensor Remember to install isolation and bypass valves so that mainte
49. ppear on the screen see below Press 1 to proceed 2 to cancel WARNING THIS OPTION REQUIRES RE CALIBRATION AND RE PROGRAMMING 21 5 3 Conductivity Setup The internal preamp must be set up for the conductivity sensor that is used Refer to the following tables for the preamp setup for Lakewood Instruments conductivity sensors RANGES Cond Range 540 K 1 540 K 01 543M 543L 543LL 1 10 Range 4 Range 3 2 Range 2 10 100 3 2 2 100 500 Range 2 2 Range 2 100 1000 2 2 1000 10000 1 10000 100000 Range 0 PREAMPLIFIER SETTINGS FOR THE MODEL 2450 Range 0 Range 2 Range3 Range4 Voltage Gain 100 10 10 10 1 Sample R 20 20 200 2K 2K Drive Freq 500 Hz 500 Hz 500 Hz 500 Hz 30 Hz To set up the preamp From the Main Menu press 6 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select Cond Press 2 PREAMP SETUP Use the arrow keys to change the VOLTAGE GAIN use the ENT key to move the cursor to the SAMPLE R Use the arrow keys to change the SAMPLE use the ENT key to move the cursor to the DRIVE FREQ 5 4 Cell Constant The cell constant must be set up for the conductivity sensor that is used Refer to the following table for the cell constants for Lakewood Instrumen
50. puts are programmed using the following procedures To get to the flow meter configuration screen From the main menu press 4 FLOW METERS This will take you to the WHICH FLOW METER screen Press 1 for PERM press 2 for CONC or 3 for FEED This will take you to the WATER METER TYPES screen as shown WATER METER TYPES 1 DATA INDUSTRIAL 2 SIGNET AUTOTROL TURB 1 IN 4 AUTOTROL TURB 2 IN Use the keypad to select the type of flow meter that you are using 6 7 1 Data Industrial If DATA INDUSTRIAL is selected the following screen will appear 1 RESET TOTAL FLOW 2 SLOPE AND OFFSET 3 UNITS OF VOLUME 4 NUMERIC PRECISION 5 CHANGE MY NAME 35 RESET TOTAL FLOW This screen is used to reset the total flow for this input back to zero PERM RESET TOTAL COUNTS 1 YES Select 1 YES to reset the total flow to zero Select 2 NO to keep the current flow meter total SLOPE and OFFSET This screen is used to configure the monitor for your particular Data Industrial flow meter PERM SLOPE VALUE K Hd OFFSET 0 0000 e Use the keypad to enter the SLOPE or K factor value for your particular water meter then press ENT Use the keypad to enter the OFFSET value for your particular water meter then press ENT UNITS OF VOLUME This screen is used to configure the units of volume to be displayed to Gallons Liters or Cubic Meters UNIT
51. te flow for a relay configured as setpoint to function 15 the pump manually turned on or off Is the CIP input activated You must have permeate or concentrate flow for a relay configured as setpoint to function and trigger pump operation Determine whether you need the relay configured for direct or reverse setpoint feed Relay setpoint not properly configured of what you expected ALARM FLASHING RLY1 TIME EXCEEDED RLY2 TIME EXCEEDED RLY3 TIME EXCEEDED RLY4 TIME EXCEEDED Reprogram the over feed time The relay was not able to via RELAYS SETPOINT control the pH ORP setpoint within the programmed over feed time The relay is locked out until the alarm goes away Determine why the chemical feed is failing to control the solution pH ORP To reset the alarm temporarily stop permeate and concentrate flow PROBLEM ALARM FLASHING pH ALARM or HIGH ALARM ALARM FLASHING pH LOW ALARM ORP LOW ALARM ALARM FLASHING COND HIGH ALARM ALARM FLASHING TEMP HIGH ALARM ALARM FLASHING PERM HIGH ALARM ALARM FLASHING PERM LOW ALARM ALARM FLASHING FEED HIGH ALARM ALARM FLASHING FEED LOW ALARM ALARM FLASHING REC HIGH ALARM ALARM FLASHING LUBRICATION INTERVAL ALARM FLASHING CHECK CIP ALARM FLASHING CHECK FILTERS WHAT THIS MEA
52. ter treatment specialist when determining the proper High and Low Alarm values for your system To access the alarm configuration screens from the MAIN MENU press highlight ALARMS and press ENT The following screen will appear WHICH INPUT DEVICE Select the desired alarm input You will be taken to that inputs alarm configuration screen HIGH ALARM 10 00 pH LOW ALARM 7 00 pH Use the keypad to enter the High Alarm point and press ENT If that input has a low alarm associated with it you will automatically be moved down to the Low Alarm f applicable use the keypad to enter the Low Alarm point and press ENT NOTE Concentrate flow rate does not currently have high or low alarms associated with it 34 6 7 Flow Meters The 2450e series controllers include two flow meter inputs for use as the Permeate and Concentrate These inputs will work directly with the following types of open collector output meters Data Industrial Signet paddle wheel meters and the Autotrol 1 inch and 2 inch turbine meters Contact Lakewood Instruments for other types of water meters The Permeate Concentrate and Feed flow rates as well as the Permeate and Feed flow totals are displayed on the Operation screen The Concentrate flow total is not displayed The Feed flow meter input is the sum of both the Permeate and the Concentrate flow meter inputs The Permeate and Concentrate flow meter in
53. ther ZERO or SPAN to perform a single point calibration There are error messages associated with calibration points see below If an improper calibration is being performed an error message may appear To perform a good single point calibration the ZERO calibration should be performed at a lower pH than the SPAN calibration A good rule of thumb is to perform a ZERO calibration if the measured pH is less than 7 00 pH and use the SPAN if the measured pH is greater than 7 00 pH 6 3 2 2 CALIBRATION ERROR MESSAGES The model 2450e will display calibration error messages to alert the operator of a possible calibration error THE SPAN AND ZERO VALUES SHOULD LEAST TWO pH APART error message will occur if the zero and or the span calibrations are performed within two pH of each other If you receive this error message initialize the calibration and repeat the calibration using the rule of thumb above The pH DEVIATION GREATER THAN 1 5 FROM DEFAULT CHK PROBE CABLE SOL N error message will occur if the calibration value is more than 1 5 pH away from the value the controller thinks the pH should be based on the signal input from the sensor This could indicate a failed sensor or interference in the system f you receive this message perform a calibration check using buffer solutions 6 3 2 3 CALIBRATION CHECK OF pH or ORP IN BUFFER SOLUTIONS To check the calibration of the sensor in buffer solutions the sensor must be held
54. ts conductivity sensors CELL CONSTANTS 540 K 1 540K 01 543M 543L 543LL 0 1 0 01 0 30 0 03 0 07 To set up the Temperature Compensation From the Main Menu press 7 SYSTEM SETUP Press 1 PROCESS PARAMETERS Select Cond Press 4 CELL CONSTANT Use the keypad to enter the CELL CONSTANT as per the table above and press the ENT key 22 5 5 Temperature Compensation The model 2450e has a single temperature compensator input This input is used to display the temperature of the permeate flow as well as to temperature compensate the pH and Conductivity readings The input can come from either the pH or the conductivity sensor depending on which sensor is wired to the temperature compensation input Set up the temperature compensation for the temperature compensator value of the sensor that is wired to the temperature compensation input NOTE If the temperature compensator if the pH sensor is used the temperature that is displayed will be the FEED WATER temperature NOT the permeate temperature The model 520 series pH sensor has a 10K PTC temperature compensator Refer to the following table for the temp compensators for Lakewood Instruments conductivity sensors TEMP COMPENSATION 540K 1 540 K 01 543M 543L 543LL 500 NTC 500 NTC 4K NTC 4 NTC To set up the temperature compensation From the Main Menu press 6 SYSTEM SETUP Press
55. turn on a relay for a user specified amount of time after a user specified amount of machine runtime From the RELAY OPTIONS screen select 3 AUTO FLUSH EVERY HRS MINS 0 00 OF RUNTIME FLUSH FOR Use the keypad to enter an amount of machine runtime in hours and minutes then press ENT Use the keypad to enter an amount of flush time in minutes and seconds then press 6 5 1 4 Alarm Relay The relays can be configured as alarm relays The alarms that will cause the relay to activate are selectable from the controller alarms or from any node input alarms The controller alarms include High and Low pH High Cond High Temp High and Low Perm flow rate High and Low Feed flow rate High REC Lubrication Interval Check CIP Check Filters Check Membranes Check Sensor Cond Fouled Sensor Shorted TC Opened TC High REF Impedance Broken Glass High REF Voltage Low Voltage Switch Closed and Relay Time Exceeded alarms From the RELAY OPTIONS screen press 4 ALARM RELAY The controller will respond with the following screen WHICH ALARMS 1 pH HIGH ALARM 2 pH LOW ALARM 3 COND HIGH ALARM 4 TEMP HIGH ALARM 5 PERM HIGH ALARM 6 PERM LOW ALARM Only 6 alarms are shown at a time on the screen use the arrow keys to scroll up and down the choices and select the alarms by pressing ENT when the desired alarm is highlighted An asterisk will appear next t
56. two channels of 4 20 mA output The model 35L2 adds an additional two channels of 4 20 mA output for a total of four 4 20 mA outputs NOTE THE MONITOR MUST HAVE THE 35L OPTION CARD INSTALLED BEFORE ADDING THE 35L2 OPTION CARD These outputs can be isolated externally powered or non isolated internally powered The 4 20 mA outputs are wired directly to the 35L and 35L2 option cards The 35L card uses channels A and B while the 35L2 card uses channels C and D Refer to the drawing in the back of this manual for wiring instructions 4 0Functional Overview 4 1 Display The model 2450e uses an illuminated 128x64 pixel LCD digital display for ease of viewing has multiple lines to display information such as the pH reading conductivity reading alarms relay status relay configuration clock flow totals for both water meters and menu selections 4 2 Keypad The model 2450e uses a 16 key numeric keypad for ease of programming The keys have the following functions ENT To accept a setting or to enter a screen CLR To exit a screen or to access the main menu PRO To calibrate the controller DSP To change languages UP arrow To move about in the menu DOWN arrow To move about in a menu Number keys To input a value or to select a menu item 4 3 Menu The model 2450e is programmed and calibrated by the use of a menu complete Main Menu has 8 available options that can be accessed in the Technician Leve
57. unting feet to the back of the controller enclosure Install on smooth surface to prevent stress on the mounting feet Do not install on vibrating wall If enclosure is installed in corrosive environments consider purging Dimensions indicated as inches millimeters The enclosure material is PVC Use 10 mounting screws 4 Avoid drilling or punching additional holes in the controller enclosure Damage incurred as a result of any alteration to the enclosure is not covered under the Lakewood Instruments product warranty The dimensions of the enclosure in inches are The model 2450e has a shipping weight of about 8 16 14 3 3 Sensor Installation 3 3 1 Conductivity Sensor Plumbing The Conductivity sensor may be mounted in any position as long as the sensor tip is fully immersed in the active process water stream Avoid connections in dead leg sections of pipe An air pocket around the electrode tips will cause erroneous readings The sensor electrodes should be in direct contact with the process flow see DWG 04259 in the back of this manual Note Remember to install isolation and bypass valves so that maintenance can be performed 3 3 2 Conductivity Sensor Wiring The model 2450e will accept the model 540K 1 the model 540K 01 the model 543M the model 543L and the model 543LL conductivity sensors The conductivity sensor is wired directly to the I O board inside the controller The 543 series sens
58. w password for this controller 6 10 SETTING THE CLOCK The clock uses the 24 hour or military time 06 00 00 is 6 a m 18 00 00 is 6 p m To set the clock From the Main Menu press 8 CLOCK The following screen will appear MON 15 AUG 11 11 23 13 PRO CHANGE CLR EXIT Press PRO to change the clock settings Use the up and down arrow keys to change the day of the week Press ENT Use the number keys to change the date Press ENT Use the arrow keys to change the month Press ENT Use the number keys to change the year Press ENT Use the number keys to change the hour Press ENT Use the number keys to change the minutes Press ENT Use the number keys to change the seconds Press ENT Press CLR to exit this screen You must press ENT all the way through this menu for the settings to take affect 57 6 11 Changing Security Levels The model 2450e has three security levels Technician which allows full access to all screens Operator which allows access to the operations screens manual relay screen and calibration screens and View Only which allows access to the operations screens and manual relay screen The security level can be change to prevent any unwanted tampering of the controller To change the security level from Technician to Operator or View Only From the Main Menu press 0 Note that 0 does not appear on the menu screen SET SECURITY LEVEL
59. w type If the fuse is blown the display will be blank and the four power supply lights inside the controller enclosure will be dark when the unit is connected to power Refer to the troubleshooting section of this manual for more information about blank displays 60 8 0 TROUBLESHOOTING _ Conductivity Calibration Error message SENSOR READING HIGHER THAN EXPECTED Conductivity Calibration Error message SENSOR READING LOWER THAN EXPECTED Conductivity drifts or changes after calibration Water meters not accumulating NODE NOT RESPONDING error message WHAT THIS MEANS The Monitor is being told the conductivity is 5096 more than it thinks it is by default The Monitor is being told the conductivity is 50 less than it thinks it is by default Calibration may have been done before the reading stabilized The sample line may contain electrical noise Check the manufacturer s user manual for that particular water meter This message occurs when one circuit board in the Monitor cannot communicate with another board 61 CORRECTIVE ACTION Is the Monitor being calibrated to TDS when configured for conductivity Verify that the sensor tip has no accumulated solids and has not bridged to piping creating a short Clean tip Is the sensor fouled Are all valves open Clean or replace sensor When calibrating wait at least 15 seconds to 112 minutes for readi
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