ITX and ITXIL - Cerlic Enviromental Controls
Contents
1. 2 Cerlic ITX Appendix 1 Assembly of handrail mounting kit Mount the Flexible Mounting Bracket on existing handrail or on separate holder diameter 32 50 mm 1 1 4 2 or square 28 42 mm 1 v amp 1 33 The bent lip on the mounting plate shall be on top and zm faced toward the liquid or tank Adjust the Mounting Bracket to the re 1 correct angle and tighten the nuts The bracket shall be fixed to the rail and must not be able to rotate around it N ER a Example of a holder Vi to be used for the mounting bracket when no handrail is e Disassemble the bracket guide and place around the telescopic rod e Use the SS screws on bracket to tighten the bracket to the rod e Pull the cable and hose through the sensor holder and rod e Connect the telescoping fiberglass rod to the sensor with the two piece black PVC adapter e The adapter halves should be tightened until snug which will leave about 1 5 mm 1 16 gap NOTE The gap is required so the water can drain from the rod e Adjust the length of the telescopic sensor rod as necessary by twisting the nuts while holding the rod NOTE Do not extend the rod sections beyond the black lines This could lead to rod damage SAA e Insert the PVC bracket guide with the telescopic rod ox p il S into the mounting bracket Make sure that the bracket p guide tracks are properly seated in the bracket pr Len C SS e Fast2. Along 1 or Along 2 Select relay to operate solenoid for flush cycle if this sensor is a master with its own relay or relay used by master if this sensor is a slave These are the same relays used for Alarm relay below Next time The next scheduled cleaning time Pushing Enter on this line will set the time to current time and start a cleaning cycle This could be used to test the Flush cycle only for master 215 Cerlic SCALE ALARM Max Min Hi Alarm Low Alarm Alarm Relay SYSTEM Type Serial SoftW Temp MaxTemp Samples Info SA 0 SA 1 Cons 1 MS Con SA 0 SA 1 Cons 1 Chia Ch1 Ch2 Intensity Zero Int l offset Samp s Service ITX 0 99 9 or 0 99999 9 ppm mg l or g l units selected in the Settings menu equal to 20 mA output signal 0 99 9 or 0 99999 9 ppm mg l or g l units selected in the Settings menu equal to 4 mA output signal 0 99 9 or 0 99999 9 ppm mg l or g l units selected in the Settings menu the value zero inactivates the alarm 0 99 9 or 0 99999 9 ppm mg l or g l units selected in the Settings menu the value zero inactivates the alarm 1 2 or 1 and 2 Check that the relay is not being used for cleaning Type of sensor read only Serial number of the sensor read only Software version of the sensor read only Sensor temperature read only The highest temperature the sensor has been
3. ITX and ITXIL Suspended Solids Sensor 2009 03 05 C2021ASENIO ITX TABLE OF CONTENTS t NUMERO tcc 3 2 A few words about this manual eeu cnet ccp boa xe nha Ex ence ctmceaeswesecevexewcnuadyweescsnnnecene 3 5E c c 3 A Measuring euer rereana Eom 3 5 UNPACKING th SCMS OM sssini aaa aa a a a ondadassevdneasdessicssemnesdens 4 6 MOUNINO E 5 Cable Comice e E 5 E EE call teen 5 MNS Cala eege 5 Inline sensor ITX IA 6 f Removing Ine SONS OP E 9 Removing the submersible sensor TI 9 Removing the Inline sensor TX BE 9 O el re M 10 Flushing Nozzle on submersible sensgorg 11 Flushing Nozzle on inline sensorg eere 11 Mounting plate for cleaning solenoid valves 11 lt Menu for ITX ecl 12 10 C eii en 14 CDr O DOBIUS a a A ne en ee 14 WEEK l4 C anra om SCEOEI E 15 Automatic adjustment of the calibration eeeseesueeeeees 16 Getting good measgurement n rrr nnn nnns 16 Te EE 17 Calibration Sami EE 17 MES D mMe 18 12 Sensor CIS OIA Set 18 13 Te hni l d scriptiON EE 19 Mp WEE 19 El ee 19 CMS c M 21 IR ql E 21
4. Cons 2 SA 3 Cons 3 SA 4 Cons 4 SA 5 Cons 5 25 ITX Return to the System menu Select Info then press ENTER to go to the info menu MS Con SAO SAT Cons 1 Chla Chi Intensity Zero Int I offset Leave the BB2 menu by pressing fi and ENTER at the same time _ 26 Cerlic Cerlic Appendix 5 Setup information This sheet can be used to document the setup of a sensor Sensor Type Position Tag In the System sub menu of the sensor menu the following information can be collected Serial SoftW In the Settings sub menu of the sensor menu the following parameters can be set I time Unit Analog Second In the Cleaning sub menu of the sensor menu the following parameters can be set Cleaner Cleaning interval Cleaning length Cleaning relay In the Scale Alarm sub menu of the sensor menu the following parameters can be set Max Min High alarm Low alarm Alarm Relay Leave the BB2 menu by pressing f and ENTER at the same time Cerlic Controls AB P O Box 5084 SE 141 05 Huddinge Tel 46 8 501 694 00 Fax 46 8 501 694 29 sales cerlic se www cerlic com AE m
5. but weld end or nipple Use a lot of flaxen hair and joint paste Be aware not to pull the valve end to the bottom The valve handle shall be in the correct direction as to the current pipeline If the valve is turned the wrong way the measure gap will not be in line with the flow resulting in faulty measurement The angle of the sensor can be adjusted 15 when the sensor is put in place Mounting of sensor in ball valve z Cerlic ITX Mounting of sensor in ball valve LOO OPWARNING e Be aware that the force may be strong when the sensor is mounted under pressure e This instruction must be fulfilled in all parts to avoid accidents or personal damage e Ifthe instructions cannot be fulfilled in all parts the transmitter should not be mounted or dismounted under process pressure e Cerlic can not be responsible for accidents caused by not following these instructions The sensor is mounted in the valve using an adapter Make sure that the o rings in the adapter between the sensor and the valve and on the sensor below the sensor nut are OK Use Silicon grease or soup to grease the O rings before mounting the adapter If the adapter 1s separated from the sensor check and grease the O ring inside the adapter then push the adapter over the sensor head having the smaller thread towards the sensor house Finally mount the stop ring on the sensor head The adapter serves two purposes A thread for the sensor nut t
6. exposed to read only Press ENTER to go to view SA values and consistency or suspended solids values SA value for zero sample SA value for sample 1 Lab test consistency or suspended solids value for Sample 1 SA and Cons repeated for samples 2 to 5 Press ENTER to go to info read only menu This menu is for Cerlic internal use it may change without notice linearized light signal which are SA values in calibration chart Unit value in 96 ppm mg l or g l after MS value has been converted to units due to sample values This is displayed on main screen SA value for zero sample SA value for sample 1 Lab test consistency or suspended solids value for Sample 1 Raw value for channel 1 Raw value for channel 1 compensated for changed intensity Raw value for channel 2 Currently used intensity Intensity for clear water set during zero calibration Intensity offset set during zero calibration Number of samples per second Not accessible for users KS ITX Cerlic 10 Calibration The BB2 has a self optimizing calibration algorithm curve able to handle several calibration points in order to give maximum measuring precision in difficult applications Usually however a single point calibration is preferred After a calibration has been carried out make it a habit to look at the calibration curve in the sensor information screen to make sure it represents a smooth line without ant sharp bends It
7. is important that the instrument has been turned on for about 30 minutes prior to calibration so that the sensor and electronics can stabilize Please check that the correct unit consistency suspended solids is selected for the application Select unit in the sensor menu SETTINGS UNIT Calibration points To calculate the consistency or concentration out of the loss of light the sensor uses a calibration curve The curve is built up of the zero calibration point and at least one calibration point Each point has a sample value and a consistency value To be used a point needs both values the sample value is set by take sample in the calibration menu the consistency value is manually entered in the same menu after having analyzed the actual consistency at the time the sample was taken A calibration point can be disabled by setting the consistency value to zero In most applications one calibration point in addition to the zero sample 1s the best solution adding more samples then just confuses the measurement The only cases more than one calibration point is useful is when the measurement turns out to be non linear or when the sensor needs to be very accurate at widely separated consistencies The zero calibration defines the zero point used as a reference for all other calibration points The other points define the relation between loss of light and real consistency Loss of light 0 e l I 0 Consistency Negati
8. reached critical points Max sets the 20 mA point output Min sets the 4 mA point output may be negative for special applications Hi Alarm sets the High Alarm set point the value zero inactivates the alarm Low Alarm sets the Low Alarm set point the value zero inactivates the alarm 12 Sensor display By simultaneously pressing V and ENTER you alter between BB2 main menu and the sensor information display for the selected sensor ITX has a information display it shows the sensor s calibration curve 18 Cerlic 13 Technical description ITX 20 P N Material Dimensions Weight Process connection Max Depth Max temperature Measuring principle Measuring range Min Max Cable connection Cable length Cable material Flushing Flushing Pressure Flushing hose length Flushing hose material Enclosure ITX IL 15 34 P N Material Dimensions Weight Sensor Valve Process connection Max process pressure Max process temperature Measuring principle Measuring range Min Max Cable connection Flushing Flushing Pressure Enclosure 11305455 316SS SIS2343 See section 14 1 6 kg 3 5 lbs Submerged 10 m 33 ft 60 C 140 F Straight transmission 20 mm measuring line 0 100 mg l 0 20000 mg l application dependent 5 pin M12 plug 10 m 33 ft Hytrel Clean water or instrumentation air max 6 bar 90 psi 10 m 33 ft PE LD IP68 NEMA 4X 11305630 SIS2
9. 343 316SS See section 14 2 4 kg 5 25 Ibs 2 2 kg 4 8 Ibs Inline sensor 1 ball valve 6 bar 90 psi 10 bar 150 psi with plugged flushing nozzle 60 C 140 F Straight transmission 15 mm measuring line 0 100 mg l 0 5 TS application dependent 5 pin M12 plug Clean water or instrumentation air 2 bar 30 psi above process pressure max 8 bar 120 psi IP65 NEMA 4 19 Cerlic ITX Certificate of conformity The ITX sensors along with their central unit BB2 are in conformance with the following EC Directive s when installed in accordance with the installation instructions contained in the product documentation 73 23 EEC Low Voltage Directive as amended by 93 68 EEC 89 336 EEC EMC Directive as amended by 92 31 EEC and 93 68 EEC The following standards and or technical specifications have been applied EN 61000 6 4 2001 Electromagnetic compatibility EMC Part 6 4 Generic standards Emission standard for industrial environments EN 61000 6 2 2001 Electromagnetic compatibility EMC Part 6 2 Generic standards Immunity for industrial environments EN 61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory use 20 Cerlic 14 Dimensions ITX 20 566 mm 2 50 227 mm H 94 255 mm 10 04 ITX IL 15 34 e dE gt c4 2 a 1 2 NPT E Eg a eS Weld end 386mm 15 2
10. INTE es het red se asec ced tee cetacean 21 Appendix 1 Assembly of handrail mounting kit eese 22 Appendix 2 Assembly of adjustable slide rail 23 Appendix 39 Assembly of TT All iacscodexssa ike suede usUvee fusa orones aaia 24 Appendix 4 Support information 1Leeeee e Leeeeeer e eeee eene enne annee anna anna n nnn 25 Appendix 5 Setup information ME 27 Cerlic 1 Introduction The IT X sensor is designed to measure suspended solids concentrations in liquids Combined with the BB2 control box the sensor is used to measure suspended solids content as a function of the ability of suspended materials to absorb and reflect NIR light Near Infra Red The sensor 1s available in two versions for inline mounting and for submersion 2 Afew words about this manual This manual details installation procedures and operational features of the Cerlic ITX sensors Menu navigation and technical data for the BB2 control box can be found in the BB2 service manual 3 Design The ITX sensor is manufactured with 316SS 882343 stainless steel The head of the sensor is designed to achieve the highest self cleaning effect providing an exact and reliable measurement with the least possible maintenance under critical applications The measuring lenses within the housing are made of glass The electr
11. Once the automatic adjustment is done and the sensor gives a sensible reading we recommend using a statistical adjustment to get a higher accuracy over time se below Running an automatic adjustment Fill a bucket with a sample of the liquid you intend to measure Submerge the sensor into the liquid Even though the sensors have daylight filters they are sensitive to the infrared parts of the sunlight Always cover the sensor and the bucket before calibration Select the sensor to be calibrated in the menu by using f or V arrows Press ENTER for approximately five seconds to enter the sensor menu Use f and V arrows to select Calibrate and select Adjust and then Store Select Take sample and stir the sample in the bucket until the measuring is finished e Replace the rod sensor in the SS mounting bracket so the sensor is at least 12 36 cm below the lowest liquid level in the basin Take the bucket to the lab for analysis Note the concentration of the sample determined at the lab Use f and arrows to select Calibrate and select Adjust and then Lab Press ENTER Press ENTER to use the stored reading or f to key in a value Key in the result of the lab analyze then press ENTER BB2 will show current and suggested new value for Sample 1 acknowledge the change by pressing ENTER or abort using tot Getting good measurement Statistic adjustment of the lab sample value is a much better way to goo
12. aling kit 10605708 Flush membrane O ring between valve and adapter 48 x 2 EP70 O ring in the adapter 33 3 x 2 4 EP70 O ring on ITXIL 29 x 2 5 EP70 Cerlic 6 Mounting Cable Connections Connect the sensor to the BB2 control box using the attached connector on the end of the sensor cable In the event that two sensors are to be connected to the same BB2 control box use the Y splitter NOTE Never try to turn the connector housing to fasten or remove the connector only the fluted ring at the top of the connector shall be turned Submersible sensor ITX The ITX is mounted on a telescopic fiberglass rod and placed in a mounting bracket that fastens to a handrail Please refer to Appendix 1 As an alternative way of mounting the sensor an adjustable slide rail holder 1s available please refer to the Appendix 2 for further details When the sensor is measuring in a flume it is important to find a place where the suspended solids concentration 1s representative Make sure the flushing nozzle 1s downstream from the lenses pointing against the stream This will avoid having the measurement disturbed by turbulence from the nozzle At the same time it will produce a shield around the nozzle due to a constant over pressure preventing particles from getting in Installation Tips e Adjust the rod so that the sensor is at least 30 cm 12 below the liquid surface or the lowest water level in decant applications to prevent the senso
13. d measurement than frequent calibration This is done comparing the lab results with the instrument reading over time If a systematic discrepancy is detected the value of the lab sample used in BB2 is changed accordingly If for example several lab results for a period of time in average shows 5 more than the instrument the sample value in BB2 shall be increased 5 of its value e g if the sample value is 10000 mg l it shall be changed to 10500 Using statistic method will increase the accuracy and reliability of the measurement as time passes while new calibrations will start from scratch An Excel sheet to help doing statistical adjustment of the calibration can be downloaded from http www cerlic com 16 Cerlic Zero Calibration The sensor is zero calibrated at the factory and does not often need to be zero calibrated Before doing a zero calibration always check that it is really needed Make sure the lenses are clean and use clean de aerated water to check the meter reading Cover the bucket to avoid direct sun light Tap water 1s best de aerated by leaving the water in an open bucket for at least two hours Running a zero calibration Remove the sensor from the process clean the sensor head and dip it in a bucket of clean water Even though the sensors have daylight filters they are sensitive to the infrared parts of the sunlight Always cover the sensor and the bucket before calibration Select the sensor to be calibrat
14. ed in the menu by using f or V arrows Press ENTER for approximately five seconds to enter the sensor menu Select Calibrate and select Take sample Press ENTER e Select Zero and press ENTER e To acknowledge that you really want to change the zero calibration select Yes and then press ENTER e BB2 will ask you to put the sensor in clean water Submerge the sensor head into the clean water and cover it from direct sunlight then press ENTER e Wait for the zero calibration to finish It will take approximately thirty seconds before the unit returns to the menu Detailed procedures for navigating the BB2 software can be found in the BB2 service manual Calibration with samples Calibration with sample in a bucket Fill a bucket with a sample of the liquid you intend to measure Submerge the sensor into the liquid Even though the sensors have daylight filters they are sensitive to the infrared parts of the sunlight Always cover the sensor and the bucket before calibration e Select the sensor to be calibrated in the menu by using f or V arrows e Press ENTER for approximately five seconds to enter the sensor menu e Select Calibrate e Select Take sample and select 1 e Press ENTER and stir the sample in the bucket until the calibration is finished It will take approximately thirty seconds e Replace the rod sensor in the SS mounting bracket so the sensor is at least 12 36 cm below the lowes
15. en the safety locking clamp e Check that the bracket is safely fixed to the rail for the spring to work the way it 1s intended 2 05 Cerlic Appendix 2 Assembly of adjustable slide rail Slide rail iDOmm i834 133mm d 5 24 Timm d 2 99 ES 3 cda EE B d Li 19 63 Dt Arem 518mm 20 39 Annmm 11 41 MInz4 Jg 4 Hmm 1 10 Adjustable step min 24mm 0 94 from end 3 Cerlic ITX Appendix 3 Assembly of ITXIL 20250222 20250679 10305675 weld 20305158 112 NPT 216505 0 21650575 21650574 11205631 10305639 Nipple 10305675 is to be cut to make the bottom of the measure gap be at least 5 mm 4 from the pipe wall 24 Cerlic Appendix 4 Support information ITX Before calling Cerlic Support please collect the information in this form and have it at hand Company Name Phone E mail Sensor Type Position Tag First go to the BB2 menu it is accessed by pressing and ENTER at the same time for five seconds Select System and press Version Serial Box temp Leave the BB2 menu by pressing fk and ENTER at the same time Use t or 9 to select the sensor in the main display Go to the sensor menu it 1s accessed by pressing ENTER for five seconds Select System and press ENTER Type Serial SoftW Temp Select Samples then press ENTER to go to the Samples sub menu SA 0 SA 1 Cons 1 SA 2
16. f two are chosen above the first will always give the primary value according to the sensors selected scale The second will either give the temperature scaled 0 100 C or the same signal as the first channel The temperature is additional information not a precision measurement CALIBRATE Adjust No Store or Lab Stores the reading of the meter when a sample is taken and can then automatically adjust the sample value when the sample analyzed by lab is different to the reading No Zero 1 n 2 3 4 5 Sensor stores current MS light value in memory and you enter a lab solids value below to complete calibration Con Current concentration same as shown in the main menu Sample 1 Lab test consistency suspended solids value for Sample 1 Sample 2 Lab test consistency suspended solids value for Sample 2 Sample 3 Lab test consistency suspended solids value for Sample 3 Sample 4 Lab test consistency suspended solids value for Sample 4 Sample 5 Lab test consistency suspended solids value for Sample 5 CLEANING Press ENTER to go to Cleaning program Cleaner None Flush or Brush Do not select Brush since this does not exist for this sensor only for master Interval min 0 999 minutes time between cleaning cycles only for master Length sec 0 999 seconds duration of flushing cycle only for master Freeze sec 0 999 seconds extra freeze time of output signal after a flushing cycle Relay 2 HET 82
17. o keep the sensor in place A stop for the stop ring to prevent the sensor from coming lose when the sensor nut is loosened Thread the adapter into the valve the sensor 1s then fixed to the valve When the adapter is tightened the valve can be opened the sensor pushed in place and the sensor nut screwed in place If the process pressure 1s high considerable force may be needed to push the sensor in place Before the sensor nut is tightened the sensor must be aligned in parallel with the process flow LOO OEPWARNING e Becareful so that the transmitter 1s located straight If the transmitter 1s not straight the transmitter can cut jam with damages on the transmitter or valve to follow e Ifthe transmitter is hard to mount and you suspect something is stuck or that the transmitter is not mounted straight crank out and check that everything is OK e The Sensor nut can release big forces Do not ever loose the nut without holding the sensor in place at the same time Cerlic ITX 7 Removing the sensor The sensor housing may not be opened except by Cerlic service personel Opening the sensor housing will void all warrenty Removing the submersible sensor ITX The sensor is removed in the following steps Disconnect the sensor cable from the BB2 and the flushing hose from solenoid Open the clamp and pull the rod out of the mounting bracket Make sure all water inside the rod is drained Clean the sensor and rod
18. onics and optics are protected in the rugged casing ensuring its reliability in very demanding environments ITX has a fixed shielded 10 m 33 cable used for signal transmission between the sensor and the BB2 control box The cable sheath is made of Hytrel and is highly resistant to aggressive materials and fluids ITX IL has a MI2 connector to connect a standard cable to the BB2 control box 4 Measuring principle The ITX measures transmitted light through the liquid The measuring principle 1s based on the suspended particles ability to absorb and reflect NIR Near Infra red light The light source is a light emitting diode that pulses and emits monochromatic light with a wavelength of 880 nm The detected measuring signal 1s inversely logarithmical proportional to the consistency or suspended solids Signal treatment or linearization 1s done within the BB2 control box The temperature is measured by the transmitter to be used for temperature compensation of the measured value It can be read in the BB2 box and used as secondary value when a transmitter id configured to use both analog outputs of the BB2 The temperature is not a precision measurement but shall be seen as an indication ITX 20 measures the temperature on the electronics board where it 1s always some degrees higher than in the media Cross section of measuring gap B Uey J Cerlic ITX 5 Unpacking the Sensor The unit has been tested and approved before delive
19. r from coming out of the liquid e nan aeration tank ensure that the sensor is not directly above a diffuser head It should be on the backside of the rolling diffuser effect e Flushing may not be required if the tank is well agitated To verify the need for flushing remove the sensor from the liquid after it has been in the liquid for several days Place the sensor in a bucket of clean water and note the concentration value If the value does not get close to zero then the flush system should be utilized e When installing in a clarifier compressed air flushing is required due to no agitation of liquid and to remove oil and grease film on lens This 1s especially applicable in primary clarifiers e When using the ITX for influent applications always install the unit after the bar screen If the bar screen spacing is larger than 6 mm 74 then a baffle or diffuser plate should be installed in front of sensor to prevent rags from catching on the sensor head On influent applications compressed air flushing is recommended due to the oil or grease in the liquid e n effluent applications a CTX type of sensor is recommended it has better resolution at low concentrations Cerlic ITX Inline sensor ITX IL ITX IL 1s mounted through a ball valve to make it possible to remove the sensor under pressure Make sure there is at least 260 mm 10 5 free space to remove the sensor from the valve The sensor shall be mounted in a place
20. rane held in place by a steel bracket The bracket is attached to the sensor head with two screws the screws are secured using soft thread retainer If flushing is not used the nozzle can be plugged by removing the bracket and the membrane then fitting a spotfaced M5x8 screw with soft thread retainer in the hole Mounting plate for cleaning solenoid valves To provide an easy mounting of solenoid valves for the built in flushing nozzles Cerlic offers a predrilled Aluminum handrail mounting plate The Mounting plate 1s fixed to the rail using two u bolts Mounting plate P N 10305533 for one or two solenoids P N 11705516A for 230V and P N 11705516B for 115V and a connection box P N 11505748 11 Cerlic ITX 9 Menu for ITX sensor Use flt or V to select the sensor in the main display The menu for the selected sensor is accessed by pressing ENTER for five seconds If the selected sensor is not active the text No transmitter is shown a warning is displayed that asks you to make another choice in order to show the sensor menu Take sample SETTINGS Tag Name of the sensor 10 characters shown in the main display Lime Integration time or dampening can be set up to 999 seconds Unit 9 ppm g l or mg l Decimals Std or Extra Number of decimals for the reading Analog None Out Out2 Out3 Dut4 Out1 2 or Out3 4 Pick which analog output s to be used with sensor Second Temp or Prim I
21. ry from the supplier Please check to confirm that no visible damages occurred during shipment Damages If damages occurred during shipment immediately contact UPS or other truck line as well as your Cerlic representative The shipment can be returned only after contact has been made with Cerlic Packaging The original packaging is designed to protect the equipment and should be used for storage or if the goods must be returned Content Please check that the content corresponds to your order and packing list Every shipment should include Options and accessories P N e Solenoid valve for flushing 1705516 Incoming hose 216mm 5 8 to sensor 6mm 1 4 e Aluminum mounting plate predrilled for BB2 US version 31204054 and solenoid valves w u bolts outside US version 10605532 e 10m extension cable with plug in connectors 20805510 e Y Splitter for two sensors to one BB2 control box 21505534 e Connection box for two sensors to one BB2 control box 11505748 with 1m 3 ft cable to connect to BB2 e Connection box for four sensors to one BB2 control box 11505785 with 1m cable to connect to BB2 Optional parts for ITX Submersion sensor e Mounting bracket X incl rod holder 11205539 e Telescopic rod 4 m incl transmitter holder 20205501 e Adjustable slide rail 11205600 Optional parts for ITX Inline sensor e Connection valve ITXIL excl nipple 11205631 e Weld end nipple 10305675 e 11 2 NTP nipple 20305158 e Se
22. s the next time flush will be activated pushing ENTER will set it to current time and those start cleaning NOTE Pay attention to the requirements for protection against backflow according to the EN 1717 standard for drinking water devices If possible use plant reuse water or effluent water for cleaning 10 Cerlic Flushing Nozzle on submersible sensors ITX On sensors having a serial number starting with 10 or 11 the flushing nozzle and sensor cannot be disassembled in the field An attempt to disassemble will void the warranty On newer sensors the nozzle can be removed by opening the clamping screw next to the nozzle If the flushing nozzle becomes plugged it can usually be cleaned by backflushing it with clean water Before attempting to backflush close the valve for the flush water source and disconnect the sensor flushing hose from the solenoid valve Then place a 12mm 72 hose over the flush nozzle and carefully open the water valve The pressure should clear the line of solids If backflushing does not work initially try cleaning the three flushing nozzles with a needle Try backflushing the nozzles again as described above until clean water comes out at the solenoid valve end of the hose Flushing Nozzle on inline sensors The nozzle of the Inline sensor works as a check valve to avoid having process liquid pressed up the flushing hose The nozzle usually doesn t need to be cleaned It consists of a rubber memb
23. t liquid level in the basin Take the bucket to the lab for analysis Note the concentration of the sample determined at the lab e Enter sample 1 concentration by going to Sample 1 in the calibration menu and pressing ENTER Use the arrows to change the values and ENTER to go to the next digit 2155 Cerlic ITX e Some special applications may nead additional sample points Do not enter samples that are identical in concentration or less than 10 from initial values Calibration of submersible sensor in a basin or channel Calibration can be done without the use of a bucket Make sure that the sensor is at least 30 cm below the lowest liquid level Follow the above procedure while the ITX 1s calibrating grab a sample of the liquid with a dip bucket to take to the lab for analysis Make sure to grab a sufficiently large sample volume for low solids applications Calibration of Inline sensor in a pipe Inline sensors are easiest calibrated if the pipe has a sample outlet Follow the above procedure while ITX IL 1s calibrating open the sample valve and fill a bucket with process liquid Take the bucket to the lab for analysis Note the concentration of the sample determined at the lab 11 Scaling The Scale Alarm menu see the BB2 manual allows the user to set the high and low boundaries for a 4 20mA output signal In addition this menu allows the user to set high and low alarm values to energize a relay when solids have
24. uid Water is recommended for flushing in aeration basins Compressed air is recommended for most other applications For ITX submersible sensor the highest allowed flush pressure is 6 bar When using air 2 bar 1s usually sufficient Inline sensors require a flushing pressure at least 2 bars above the process pressure the highest allowed flushing pressure for ITX IL 1s 8 bar Flushing must be activated in the Settings menu in the BB2 control box e Select the transmitter in the Main Menu by using the y Or f buttons e Press ENTER for approximately five seconds to enter the Transmitter Menu e Use the arrows to select Cleaning and press ENTER e Inthe Cleaning submenu e Ifthe sensor is to be cleaned as master 1 e it has its own relay then set the Cleaner setting to flush specify the cleaning interval in minutes and the flush time in seconds If the sensor is to be cleaned as a slave along with another sensor these parameters are set for the sensor being the master e If needed specify the extra freeze time in seconds e Ifthe sensor shall be cleaned as master specify the relay to be used according to the wiring inside the control box For example if the solenoid is wired to relay 1 select 1 for flushing If the sensor is to be cleaned as a slave specify Along 1 or Along 2 depending on what relay the master sensor uses e For sensors configured as masters Next time display
25. ve values The sensor contentiously compares the loss of light to its calibrated points If for some reason the loss of light is less than when the sensor was zero calibrated the meter shows a negative consistency This is not a fault it just indicates the liquid in the sensor absorbs less _14 Cerlic ITX light than the liquid used as zero reference Please contact Cerlic service if this 1s a problem for you Calibration screen The ITX sensor information menu is the calibration curve screen To change between the main menu and the calibration screen press V and ENTER simultaneously Single point calibration Multi point calibration BB2 uses at least a zero sample and one sample single point calibration Up to five samples may be used to create a calibration curve multi point calibration The samples are sorted internally in order of signal intensity The sample numbers however doesn t change only the order they are used The calibration menu displays sample values placed in a graph e X scale displays consistency suspended solids where min value 4 mA output is shown to the left and max value 20 mA output is shown to the right e Y scale displays the light loss due to solids from the sensor light source BB2 uses the light loss values to calculate which measuring signal corresponds to min consistency suspended solids and max consistency suspended solids e Actual measuring value is indicated with an arro
26. w that moves up and down to the left of the Y scale axis e Samples that are not within the chosen scale of the active sensor are not displayed on the calibration screen However these samples are still used in the calculations If you want to see a point outside the sensor scale then you may temporarily change the scale in the sensor menu If the sample values are switched or the lab result is incorrectly performed then the calibration curve will be incorrect Such a mistake 1s easy to discover on the calibration screen since a part of the calibration curve will go in the wrong direction Different measuring values should never correspond to the same consistency suspended solids The curve goes backwards because two samples have been exchanged when entering the lab results Higher Y value must mean higher X value The curve must have a direction upwards and to the right Incorrect calibration 15 Cerlic ITX Automatic adjustment of the calibration The function Adjust in the calibration menu is used to automatically adjust the calibration in an easy way When a sample is taken to be analyzed by lab BB2 stores the reading When the sample has been analyzed the result is keyed in to the BB2 who will compare it to the stored reading and calculate a new setting for the sample value Automatic adjustment only works for single point calibrations and is primaryli intended as an easy way to get started with a new sensor
27. where the process pressure 1s at least 1 bar In horizontal pipes the sensor shall be mounted from the side or from below to avoid disturbance from air bubbles The sensor is designed to be mounted in a right angle to the process flow The smallest process pipe diameter to mount the sensor is 80mm 3 The measure gap must be at least 5mm 74 from the pipe wall If a sample outlet is used it must reach at least 20 mm 74 into the pipe Place the sensor where there is no risk for it to get damaged When the ITX IL is used outdoor it shall be mounted with a sun and rain protective hood Min 3 Min OUT mm l Min 4 Min 5 mm E ges Min HI H ORI a J Lk Mounting of sensor and sample outlet Cerlic Mounting the weld end ITX Open a 48 5 mm 1 9 hole in the process pipe Cut the weld end to get the sensor at head least 5 mm 4 from the pipe wall and weld it to the pipe Stabilize the weld end using 3mm strip iron according to the figure below ia i zh Weld B z 4 R11 Hole 45 5 mm ex 0 IO EIERE d Hole 1 9 Weld a 3 Mounting of weld end with strip iron Mounting the threaded nipple in a saddle Mount the saddle on the pipe according to the saddle manufacturer s instructions Thread the nipple into the saddle Use a lot of flaxen hair and joint paste Be aware to get the correct distance from the pipe wall to the valve Mounting ball valve Thread the valve end on the
28. with a brush or clean cloth Do not use a wire brush Open the black sensor adapter Flush the inside of the rod with clean water Mount the protective cap or a small plastic bag on the sensor cable connector Pull the cable and flushing hose out of the rod Blow compressed air through the flushing hose to get rid of the water in the hose and the sensor Removing the Inline sensor ITX IL The sensor is removed in the following steps Loosen the sensor nut make sure the adapter to the valve stays on the valve Hold the sensor in place when the nut is removed be aware considerable force may be needed to hold the sensor in place if the process pressure is high Let the sensor out until it rests on the stop ring in the adapter Close the valve Disconnect the sensor cable and the flushing hose from the sensor If the check valve inside the sensor is worn some liquid may come out of the sensor hose Loosen the adapter from the valve be aware there is some liquid in the valve Remove the sensor and the adapter they stick together Clean the sensor using a soft brush or a rag Do not use a metallic brush or sharp tools Cerlic ITX 8 Cleaning The sensor is equipped with built in flushing nozzles The nozzles are used to direct the cleaning liquid or air through a 6mm 4 hose that is connected to the top of the sensor housing A solenoid valve that is wired to an alarm relay in the BB2 control box controls the air or liq
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