TurbiTechw² LR Sensor Instruction Manual PDF
Contents
1. INSTRUCTION MANUAL TurbiTechw LR Sensors This page is intentionally left blank 0 partech TurbiTechw LR Instruction Manual Table of Contents A A aa DE RR PESE VSEE 6 2 Introducllom 52 55 O 7 2 1 Manual Conventions iii nNnaE E nnEnEnEEnEnE Rz zBnpMT DD 7 2 2 WaterWatch Trademark errar K wl ka beti b k ue aerea area ek kn EK U b ke n K au la kale lea an 7 2 3 SCOPE Of Manual ici Hin A aaS 7 24 External S NSOIS essens dogs ds 7 3 Safety Precautions Ek k k k k kk K KK KAKA KK KK KK KA KAK KK KK KK Kr K KK KAK KA kK KK KK KK kK KK kk kK 8 Be fa E E a soon nan ea een Un O a a a ee ET 8 3 2 Electrical instala O no nes n be nan aires dadin 8 aha po PRN RR ER RR ai alitas 8 34 Service and Maintenahice aii 8 3 2 End f Lite Disposal ssa fence ies 5 cee b y asik ee 9 4 The S ensor and Ifistallali6ll s issy s n diy salna ln b l n 10 44 Turbilechw R SQN SOM ie 10 5 Mechanical instalat Omeri Xu an d2sa dd diz 11 5 1 Operation EMMIS cai P7K MM Um 11 da Temperature cani re LER ee rer 11 IA AAA a beh cava RAE RR 11 51 23 Maximum Levels 2 2 222 airline i 11 5 1 4 Material Compatibility ccoo ad 11 5 2 SENSOR COMPONENTS A ni da o 11 5 21 Transmitter Module eiii ad 12 5 2 2 Receiver Module oi RS RR RD AS RN 12 9 2 3 Cleaning MOU saia n kiy kayan ea nslkakls 12 5 3 Wend ci RR ee af ea 12 5 32. Please note that live measurements are not available until the Sensor MAIN MENU Configuration stage has been completed Monitor Config Expansion Config 7 1 Sensor Config Sensor Config Measurement Config From the MAIN MENU screen select SENSOR CONFIG by pressing Alarm Config and press to accept Output Config Information 7 2 Sensor Status This option allows the user to review the current status of the 8 sensor channels these will all be set to disabled until a sensor is added Once a sensor has been installed the display will be updated to indicate the sensor type installed and it s status 7 3 Add Sensor SENSOR CONFIG 1 From the MAIN MENU screen select SENSOR CONFIG by Sensor Status pressing and press Add Sensor lt No Sensors Installed gt 2 The SENSOR MENU should be displayed Press to highlight ADD SENSOR and press Q 3 The Monitor will now search all possible addresses 0 to 240 to find any attached sensors During the search any sensors found will be displayed momentary before continuing with the search 4 Once the search is complete the Monitor will display a list of sensors found Each sensor will be automatically allocated a new address from S 01 to S 08 5 Repeat the above process to install a second third or more sensors A total of 8 sensors are possible expansion box may be required to add additional sensors 6 Sensor addition is now complete 7 If
3. 1 Process COMEN la ll kik kan kr k r n dul xwika ben eee kin K an wa en a w sa a k e da 12 5 3 2 Sample Flow AF een 12 5 3 3 Sample Pressure titi so 13 5 4 Optional ACCOSSOMOS charente ainia nenne 13 5 4 1 Optional Flow Verification Detector Ek kk ek kek kK KK KK KK A KK K A 13 6 Electrical Installation ee eines 14 6 1 1 Electrical Installation 2u 22 has aaa i 14 6 1 2 Sensor Gonneclions us eae dc 14 6 1 3 Extending Sensor Cables ciyi ce ec kane ae len 15 T Sensor Configura DJ mm mb Ee mmran_mnmmqqpCe 16 TA Sensor COMO cass 24 2 8 gt PL F L Z Z L JM B DN DJ OR CR RR ERR RR RO DN PR 16 T2 Sensor StAtUs NM a ia 16 TDG SENS OF po MERAS RN AR DEAR RPE DRE isos 16 7 4 5 0X TurbiTechw LR 0 30 i iconos anna nn na nn ar Seas a ka Y 17 C 44 S20X Manulal Clean 2a een Dev ye WE K W R Ku b La cando b be 17 EAZ SOX MO DD DM Jr dA SSSS Solis rn dg 17 225769IM 01 Issue Date 10 06 2012 Page 3 of 34 TurbiTechw LR Instruction Manual partech 7 4 3 S OX HHHH HHHH H HH HHH HH HH HEHE RE d 17 7 4 4 S 0x Modbus Addr SS kk kk kK KK KK KK KEKE KAKA KA KK KAKA KAKA KAKA KA KK KK KK KK KK KK 17 7 4 5 S 0x TOCAN kiika dakan hik dana n na a k kla kad banx aud kalak la ka kaka a b k wanan ka ek ea le kirk ka 17 8 Measurement Configuration ereta kk nn KK K KE KK KAKA KA KAK KA KK KK KK kK kK KK AK KA A kk 1
4. A GENERAL CAUTION Used where caution is required to prevent injury damage corruption of _ data loss of calibration or invalidation of warranty etc INSTALLATION NOTES General installation notes of interest to the installer Y ELECTRICAL CAUTION Used where there is a danger of electric shock to the installer or end user or where caution is required to prevent damage to the instrument MAINTENANCE NOTES Used to highlight recommended maintenance procedures and help with fault finding ENVIRONMENTAL NOTES General notes on environmental issues waste and disposal o gt 2 2 WaterWatch Trademark WaterWatchw is the family name for the w range of monitors and sensors Sensors and instruments designed for specific use with the 7300w Monitor will be suffixed with the w trademark 2 3 Scope of Manual This manual describes the installation configuration testing and operation of the TurbiTechw Sensor Please refer to 7300w Monitor manual for standard functions of the 7300w Monitor 2 4 External Sensors External sensors refers to any sensors expansion modules or instruments connected externally to the 7300w Monitor 225769IM 01 Issue Date 10 06 2012 Page 7 of 34 0 TurbiTechw LR Instruction Manual partech A odbo 3 Safety Precautions 3 1 General Read the safety precautions carefully Check the delivery of your WaterWatch sensor for damage Any damage should be reported to
5. Info This option reports the number of cleans carried out by the sensor since the last reset the time of the next clean and estimated service life Page 18 of 34 225769IM 01 Issue Date 10 06 2012 partech TurbiTechw LR Instruction Manual 8 Measurement Configuration The monitor leaves the factory without any measurements configured Measurements can only be added after installing the relevant sensor s Once the sensor s have been registered with the monitor and installed the measurements will now be available 8 1 Measurement Config From the MAIN MENU screen select MEASUREMENT CONFIG by pressing press O The screen shot to the left shows the default configuration after the installation of the TurbiTechw sensor on a single sensor configuration M 01 Turbidity NTU 8 1 1 Measurement Status MEASUREMENT CONFIG Measurement Status Add Measurement M 01 Turbidity S 01 This option allows the user to review the current status of the 16 measurement channels these will all be set to disabled until a sensor is added In the example above the first channel will be occupied Once a measurement has been configured the display will be updated to indicate the measurement and it s status 8 1 2 Add Measurement Unless a measurement has been removed there would be no condition where the Add Measurement option is required as the only measurement type is Turbidity NTU which is selected by def
6. be calibrated before use Please read the Calibration section of this manual for full details of calibration procedures 3 4 Service and Maintenance Before maintenance this equipment must be isolated or disconnected from HAZARDOUS LIVE voltages before access Maintenance instructions for the TurbiTechw sensor should be carried out as specified in this instruction manual Failure to carry out regular maintenance could invalidate the Warranty Services and repairs must be carried out by a Partech engineer Partech can provide a service contract for your system Please ask for details Page 8 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual OQ 3 5 End of Life Disposal Equipment should be recycled according to local regulations Any calibration solutions should be disposed of as described in the Manufacture Safety Data Sheet accompanied with the calibration solution Partech can provide recycling and disposal of your old Partech equipment and may also provide the same service for other manufactures equipment when replaced with Partech equipment Partech may provide a trade in for old Partech equipment when upgrading your system Please contact us for further information 225769IM 01 Issue Date 10 06 2012 Page 9 of 34 0 TurbiTechw LR Instruction Manual partech J 4 The Sensor and Installation Whilst every attempt has been made to ensure that these instructions are correct common
7. sense and good engineering practice should always be used as every installation can present a new set of challenges and difficulties If you are in any doubt please contact Partech or your local distributor for further information 4 1 TurbiTechw LR Sensor All the TurbiTechw Sensors in the family use an LED infra red light source which offers long term stability low maintenance and high reliability All TurbiTechw Sensors use either Light Scatter or Light Absorption to perform their measurement In simple terms turbidity means cloudy hazy or not pure All drinking water both raw and treated contains some degree of turbidity due to dispersed suspended particles such as silt clay algae organic inorganic matter or micro organisms Turbidity is a measurement quantifying the degree to which light travelling through the water sample is scattered by the suspended particles The transmission of light is determined by physical parameters such as particle concentration size shape and chemical properties The scattering of light increases with a greater concentration of suspended load Turbidity is commonly measured in Nephelometric Turbidity Units NTU The nephelometric method compares the light scattered by the sample and the light scattered by a reference solution The TurbiTechw LR Sensor measures the turbidity of the sample water in NTU s in accordance with established measurement techniques The measurement cell has been designed to red
8. sub menu associated Measurement Status with that measurement In MEASUREMENT CONFIG press Q to Add Measurement highlight the required measurement and press Q The sub menu is as follows 8 2 1 M 0x Info M 01 CONFIG This option provides additional information on the measurement this A E j A M 01 Title information will only be required if a problem exists with the instrument i j performance M 01 Units M 01 Set Zero 8 2 2 M 0x Title M 01 Set Cal M 01 Averaging This allows the title of the measurement to be changed from it s default M 01 Remove the measurement title is used in measurement mode to identify the measured value A selection of standard terms are available along with a User Defined option that can be adjusted to suit your requirements For example this could be changed to Turbidity Line 1 The maximum number of characters is 20 8 2 3 M 0x Units This allows the units of the measurement to be changed from it s default the measurement units are used in measurement mode A selection of standard terms are available along with a User Defined option that can be adjusted to suit your requirements The maximum number of characters is 4 8 2 4 M 0x Set Zero The term relate to the calibration of the system and is covered in the section below 8 2 5 M 0x Set Cal The term relate to the calibration of the system and is covered in the section below 8 2 6 M 0x Averaging This allows the user to i
9. 9 8 1 Measurement Config ran al k d xw wei e waye rn ek y n ded e a xanan ser w ye kr n k 19 8 1 1 Measurement Status kall kakil das kazlle iea saz nn nn Annan nan ek ka aze kek kaka d Ay 19 8 1 2 Add Measurement asia Ad A o mm 19 8 2 M 0x Measurement Channel EE kk kk k ka kk k k k k ka Kak ka KA kK KK KK KK KK KK KK 20 8 2 1 MEOX INTO ski kela nal n ani kak kenan ad aka k s sa ik zenda Ma k d ke aa Qad kb ar k b NA SAR a Qado GT REDA SA Q MS 20 8 2 2 ME 0X TIME N e o 20 8 2 3 MOX UNIS guns aspas Temer ada baias nadadeira ea r Ea AN Macaaas 20 8 2 4 M 0X Set Zero intakten aha kennen 20 825 Mi0X Set Cala ee a a enden ee eh A iai 20 8 2 6 MOX Averaging einsiinnsirisiniinekeepn niaan in A EEEN AAAA EE KAEN AEAEE 20 8 2 7 M 0x RD HOY HHHH HH HHHH namas 20 8 2 8 M 0x Display POSItION ooonmoocccnnninnncocccnnnononcnccncncnnnnnrn cnn nc conc nn cnn k lana nr rr 20 9 Cali ratlOnsdiicasss enhance Vices snmacceeabseeatimecsns a had tansndeng ate tadracd cep aa ea a aaea a aaa E aae aaa Eaa ae ae 21 9 1 Calibration Frequent Dr E a Wheeden 21 9 2 Equipment required for Formazine Calibrations eee ninas 21 9 2 1 Calibration Zero anna re hinab nike 22 9 2 2 Calibration Span sure leer Rhonda dela gia 23 1 0 Malt DAT C yiy raal y akla a an ee a sn en ehr TD nanda 24 10 1 General cleaning ss re lae k ni Yekan
10. Clean the optical surface of the sensor by hand 2 Place the sensor in a sample alternatively place an object in front of the optics At each stage observe the behaviour of the displayed value If the error message clears then it is possible that the problem was caused by fouling or by the presence of an object in the sensors optical path If the problem returns when the sensor is returned to it s normal location it is worth checking the Suspended Solids Turbidity present in the sample against the specified range of the sensor It is possible that the nature of the application has changed Ifthe problem persists please contact Partech or your local representative for further guidance 12 2 2 Over range Under range This indicates that the sensor is receiving a valid measured value that is outside the limits of the measurement configuration i e 1 000 NTU when the display range has been set to 500 NTU Firstly check that the plant is working normally and that the sensor has not become damaged or fouled If the sensor is working correctly and the site is operating normally then it may be necessary to change the configuration of the measurement This is explain earlier in this manual 225769IM 01 Issue Date 10 06 2012 Page 27 of 34 0 TurbiTechw LR Instruction Manual partech 13 General Application Notes 13 1 Preparation of Formazin Turbidity Standard Preparation of Formazin Turbidity Standard for Calibration 13 1 1 Health amp Sa
11. IM 01 Issue Date 10 06 2012 Page 25 of 34 TurbiTechw LR Instruction Manual partech 11 Spares 11 1 1 Service Parts LOTO Oido WaterWatch2310 WaterWatch2970 ColTechw LR ColTechw Replacement Cleaner Arms Wiper Blades pack of 3 When ordering seal packs always provide the model number and serial number of the sensor to ensure the correct seal pack is supplied Page 26 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual 12 Sensor Faults 12 1 Unstable reading on controller The following can cause an unstable display value Material rag weed etc caught inside the flowcell LR and affecting the measuring system remove sensor manually clean and re install Turbulence caused by high flow aeration etc in the solution being measured increase the level of damping on the 7300w Monitor Bad connection in the sensor cable check all connections are secured 12 2 Error Codes from 7300w Monitor The 7300w Monitor will provide a number of error codes the majority are generated by and stored in the sensor Some messages are warnings such as Clean In Progress which do not require any action 12 2 1 Input High Limit Low Limit This indicates that the measured value is outside the normal operating limits of the sensor This could be caused by sensor fouling but can also indicate a genuine failure of the optical components The following action is recommended 1
12. a R a en 24 10 2 IAS POCHO indi den a Sado ENO raid ql da ob a eaaa Sa SA e q 24 10 3 Dismantling the Sensor e irrreaacerar kk KAWANA AA nan nn nn rr AA HAA AA KAK AKA AHAA KWA A A AWR WAR 24 10 3 1 Removing the Modules kk kk kk kk k k k k a kk KAK KKA KA KAK A AA KA KA KK KA KK KK KA KA 24 10 3 2 Accessing the inside of the emitter and receive modules EEE 24 10 3 3 Replacing the Desicc nt ann sana yat klan k n inner rar 25 10 3 4 Closing the Module ccoo a gm _ Tn 25 NT 26 111 1 Servics Palit doi 26 12 Sensor FAS ia lod dd iii 27 12 1 Unstable reading on controller erre cnn nc kk KEK kk KEK rar rr KK KK KK KAYA 27 12 2 Error Codes from 7300w MORni tOr Ek kk kK kk K KK kk K k k KK KK KK KK KK KK KA 27 12 2 1 Input High Limit Low CiM reises n akele nek bank deka an n a WERK A anka b kd aka 27 12 2 2 Over range Under range as ee en 27 13 General Application Notes cce kk k k kaka ka KAKA KA KAK KK AK KA KA KA KA A KK Kl KK KK KK KK KK RR 28 13 1 Preparation of Formazin Turbidity Standard eae aka kA KAK kK KK K KAWA 28 13 1 1 Health amp Safety Precautions sa ee ei an ehe en 28 13 1 2 Method of Preparation ecuacion ee ee D n S SO RN se WEHA nde R be 28 13 1 3 Preparation of Dilution S i i an alla 28 A NN 28 o A O 28 14 Technical SUpport seeriana kla kalbi kka rak k lan n d
13. a single or multiple sensors have been found the can be pressed to escape from continuing the search Page 16 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual 7 4 S 0x TurbiTechw LR 0 30 SENSOR CONFIG Once the sensor has been added and registered the monitor will provide Sensor Status a list of functions specific to the sensor Press or Q to select the Add Sensor sensor and press The CONFIG MENU will display a list of sensor functions 7 4 1 S 0x Manual Clean S 01 CONFIG This function allows the user to initiate a manual clean cycle During commissioning it is advisable to perform a manual clean to test the operation of the sensor This test is also useful for checking the effectiveness of the cleaning action in heavily fouling applications oras S 01 Modbus Address part of the sensor servicing routine S 01 Clean Config S 01 Info S 01 Remove 7 4 2 S 0x Info This function provides a range of diagnostic information that may be requested by Partech for fault finding 7 4 3 S 0x Remove A This allows the sensor to be removed for re configuration of the monitor or if a sensor has been added on error If a sensor has been replaced with a new sensors the old sensor must be removed and the new sensor installed You will be prompted with Are you sure before the sensor is removed Press Q to accept and remove 7 4 4 S 0x Modbus Address This option al
14. ach terminal strip is labelled as illustrated below This equipment must be isolated or disconnected from HAZARDOUS LIVE voltages before access Refer to the 7300w Monitor user manual for full description of all the terminals within the monitor J 000 00006 0000 0060 000 000 00006 000 The maximum size wire that can be terminated is 2 5mm CSA All the connections are via removable Plug Socket terminals To disengage the terminal strip simply pull down to release 6 1 2 Sensor Connections When routing the sensor cables please ensure the cable is separated from any mains cables Although the Partech w sensors have a high resistance to interference separation of mains and data cables is good practice and should always be followed where practical All sensors in the w range communicate with the monitor using the ModTechw Protocol This protocol has been specifically designed to take advantage of the advanced features and diagnostics designed into the w range of sensors Note These sensors can NOT be used with other monitors that are not included in the w family All sensors within the w family of instruments are connected to the 7300w Monitor using the same 4 wire configuration RED and BLACK wires provide the 12VDC supply to the sensor WHITE and GREEN provide data communication A maximum of two sensors can be directly connected to the standard 7300w Monitor additional sensors can be added using the optional expansion b
15. al numeric value and number of decimal places of NTUs Page 10 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual 5 Mechanical Installation 5 1 Operation Limits 5 1 1 Temperature The upper operational temperature limit is restricted to 60 C At low temperatures the limit of operation is 0 C with the practical limitation being ice formation in the sample The construction of the sensor is such that condensation should not present a problem 5 1 2 Pressure The standard flowcell provided is not intended for high pressure applications and should not be subjected to internal pressures in excess of 1 Bar 5 1 3 Maximum Levels High turbidity levels can cause fouling problems that will require manual intervention An inherent feature of the principal of operation of the TurbiTechw Sensor is that at very high turbidity levels the sensor output will be seen to reduce this can in some circumstances produce false low readings 5 1 4 Material Compatibility Care should also be taken to ensure material compatibility between the media being monitored and the wetted parts of the assembly The principle wetted parts are black Acetal Co Polymer Polypropylene with Glass Lens If you are in any doubt about chemical compatibility please contact Partech Regulations governing the use of equipment in contact with potable water exist and these need to be understood by the user of this product Itis Partech
16. ator switch that can be activated to terminate the network if the sensor is to be removed for long periods When joining cables ensure the connection is fully waterproof Any moisture ingress can effect the communication between the sensor and monitor ModTechw Cable specification e 2 Twisted Pair Red Black Power and Green White Data with Screen and Drain wire Cores 24AWG 0 22mm 7 x 0 20mm e Outer Insulation PUR Polyurethane Blue RAL5003 Diameter 5nm 225769IM 01 Issue Date 10 06 2012 Page 15 of 34 0 TurbiTechw LR Instruction Manual partech 7 Sensor Configuration M 01 NTU Before attempting to configure the sensor please read the user manual that came with your monitor The monitor manual will introduce you to n the basic set up of the monitor and will familiarise you with the monitor menu structure and buttons TURBIDITY Monitor OK 09 59 45 17 05 12 The monitor leaves the factory with no sensors pre installed Assuming the monitor has been physically connected to a sensor the next step is to register and configure the sensor before any measurements can be made A single sensor may provide one or more measurements We advise only connecting one sensor at a time Once the first sensor has been registered connect the second and register again Repeat for any additional sensors All sensors must be registered to the monitor in this way even if they are different types
17. ault when a sensor is installed The following description is included for the purposes of completeness Note the screenshot on the left shows Measurement Config with the Turbidity sensor removed MEASUREMENT CONFIG Measurement Status Add Measurement 1 The MEASUREMENT MENU should be displayed Press Q to highlight ADD MEASUREMENT and press 2 All available measurements will be displayed in a list Press O or to select the first measurement Note Colour HU is the only option 3 Press to select the measurement Repeat the process if more measurements are required 4 Each measurement will be allocated a measurement number from M 01 M 16 A total of 16 measurements may be displayed 5 Press to return back to the display screen Your first measurement configured should now be displayed If two measurements were configured press to cycle through the display screens to show 2 measurements 4 measurements etc The Measurement Menu will list all configured measurements in order M 01 to M 16 the list will also indicate the sensor number that is delivering the signal for the measurement MEASUREMENT CONFIG Measurement Status Add Measurement M 01 Turbidity S 01 225769IM 01 Issue Date 10 06 2012 Page 19 of 34 0 TurbiTechw LR Instruction Manual partech 8 2 M 0x Measurement Channel MEASUREMENT CONFIG Selecting a measurement channel will reveal a new
18. d yk h nd k RR RR RR RR RR kaka d da RR RR da ka baya a z d kh Ka kali kin aara Ea kujan 30 14 1 Returning Equipment for Repair eee aeee kk K k kk kk k k K k KK KK kK KK KK KA KK KK KA KA 30 Page 4 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual 15 Technical Specification L Lui kk n ke KAKA KE KAK KK KK KAK KK KK KK KK KK kk KK KK KK 31 151 Physical an ando sia id ii da een ee he rer 31 15 2 Electrical O 31 15 3 Meas urement ci a aan anne eh da 31 Page 5 of 34 225769IM 01 Issue Date 10 06 2012 O TurbiTechw LR Instruction Manual partech 1 Foreword The TurbiTechw family of sensors are the latest version of the TurbiTech range The w in the product title denotes compatibility with the Waterwatch range The sensors are designed for use with the 7300w Monitor The term TurbiTech is used for any Partech self cleaning Suspended Solids or Turbidity Sensor The TurbiTechw LR Sensor has been specifically designed to monitor final treated potable and filter water The sensor is extremely sensitive and is capable of discriminating changes in Turbidity of less than 0 1 NTU The 90 light scatter monitoring technique makes the sensor sensitive to a wide range of particle sizes from colloidal material through to larger particles and raw waters and the large mineral particles sometimes found in distribution samples The sen
19. developed for WaterWatch range 15 3 Measurement Low RANGE sienne ta 0 5 to 0 530 FTU High Randge 0 50 to 0 500 FTU It has been assumed that 1 NTU 1 FTU for the purpose of this statement please refer to Partech for further details ACCUFACY einen Better than 2 FSD on real sample Resolution estaria 1 FSD or better 0 1 FTU for low range version Repeatability Better than 1 FSD on real sample Response Time 90 of step change in 2 minutes at 1 l min Measurement Principle 90 Light Scatter ISO 7027 compliant Page 31 of 34 225769IM 01 Issue Date 10 06 2012 partech TurbiTechw LR Instruction Manual 225769IM 01 Issue Date 10 06 2012 Page 32 of 34 partech TurbiTechw LR Instruction Manual 225769IM 01 Issue Date 10 06 2012 Page 33 of 34 partech
20. er must make a judgement based on how critical the measurement is to the process variability in the sample and standard practice within their organisation We recommend that calibration is carried out at commissioning stage and is then repeated within 4 weeks to ensure the instrument and process conditions are stable After this a default calibration frequency is every 3 to 6 months 9 2 Equipment required for Formazine Calibrations This section describes the materials and equipment you will need and the basic steps required to ensure a successful calibration of the TurbiTechw Sensor Regardless of the calibration method the secondary dry standard is always used to calibrate zero The following is required e 1 Litres standard Formazine e Dry secondary standard 225769IM 01 Issue Date 10 06 2012 Page 21 of 34 0 TurbiTechw LR Instruction Manual partech Protective gloves e Cleaning Materials Prior to taking any measurements thoroughly wash any containers used 9 2 1 Calibration Zero To calibrate the sensor switch off the inlet hose and remove the cleaning module The cleaning module is located in the top of the measuring cell and locates with a screwed collar A location peg makes sure the module is correctly aligned during replacement When replacing the module ensure the O ring remains correctly situated A dry clean cloth is required to carefully wipe around the inside of the chamber to remove any moisture and
21. erial Polyamide Manual Drain There is a manually operated drain tap at the bottom of the flow cell This allows the cell to be emptied prior to cleaning or calibration Isolate the sample flow before draining the cell This should be free flowing and not impose any back pressure or siphoning effect on the system 4 BSP Female with 12mm Hose tail fitted material Polyamide The manual drain is fitted with a Nickel plated brass ball valve 5 3 2 Sample Flow Rate The sample flow rate should ideally be in the region of 1 litre minute The minimum recommended flow rate is 0 5 l min a lower flow rate will not cause any damage but will result in a slow system response Page 12 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual time The maximum flow rate is 5 l min flow rates higher than this can cause problems with pressure and turbulence 5 3 3 Sample Pressure A The sensor is not intended as a pressure containing vessel however a small positive pressure across the cell is helpful for maintaining a smooth flow The maximum pressure is 1 Bar 5 4 Optional Accessories Bubbles in the sample will cause false high and or unstable readings micro bubbles can be generated if the sample pressure is reduced prior to passing through the flowcell Please talk to Partech about options for mitigating this problem a De Bubbler is available Note when fitting the De Bubbler please ensure the outlet is po
22. fety Precautions The chemicals used when following this procedure are harmful therefore the correct safety precautions must be carried out During handling avoid inhalation and contact with the eyes or skin Wash hands thoroughly after use Refer to the Manufacture Safety Data Sheets for further details of the chemicals used 13 1 2 Method of Preparation The preparation of a Formazin Turbidity Standard should be carried out with great care Absolute cleanliness should be observed at all times to avoid any contamination of the solution All water used should be freshly distilled or de mineralised During preparation and use keep the solution covered to prevent contamination e Dissolve the Hydrazinium Sulphate 10g 32112680 into 1 litre of water Stir the solution thoroughly e Dissolve the Hexamine 100g 32112630 into 1 litre of water Stir the solution thoroughly e Pour the above solutions into a 2 5 litre Winchester or similar type amber glass bottle and mix thoroughly Allow the mixture to stand undisturbed for 24 hours at 25 C The resultant solution will have a turbidity of 4000 FTU e Prior to use the standard should be mixed thoroughly i e before pouring out the standard shake the bottle well 13 1 3 Preparation of Dilution s The 4000 FTU standard can be used to prepare solutions of lower values by diluting with water The formula below can be used to calculate the ratio of water to 4000 FTU standard to produce a soluti
23. fouling Place the solid reference inside the flow cell with the blank sides facing forward and to the right 0 NTU mark to the front From the 7300w Monitor navigate to the Calibration menu as follows Press O to show the MAIN MENU SENSOR CONFIG Sensor Status Select MEASUREMENT CONFIG by pressing Q and press Add Sensor to accept S 01 TurbiTechw LR 0 30 Select TurbiTechw by pressing Q and press to accept M 01 CONFIG M 01 Info e Select SET ZERO by pressing Q and press Q to accept M 01 Title M 01 Units M 01 Set Cal M 01 Averaging M 01 Remove e The SET ZERO screen will be displayed press to move on M 01 SET CAL ZERO MEASUREMENT M 01 Turbidity S 01 TurbiTechw LR 0 30 SN 400001 Press OK to contiue or MENU to Exit The ZERO Calibration screen will be displayed M 01 SET CAL e Wait for the value to stabilise then press to accept Insert calibration standard into cell and wait for measurement to stabilise e Press O several times to return back to the DISPLAY screen Zero calibration is now complete 0 02 vru Press OK to contiue or MENU to Exit Page 22 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual 9 2 2 Calibration Span To calibrate the sensor span switch off the inlet hose and remove the cleaning module The cleaning module is located in the top of the measuri
24. ight beam allowing the beam to be observed The sample flowing into the instrument should be representative of the flow to be measured The flow should be between 0 5 and 5 litres per minute Make a routine check of any cable connections or terminations From time to time the cleaning blade will need replacement this would typically be once every 2 years This operation requires no special tools or training and can be carried out in a few minutes Wiper blades slide into the stainless steel wiper arms and can be replaced when worn The ends of the wiper arm should be pressed together gently to grip the blades after fitting At an interval of about 2 years depending on operating conditions the sensor will need the internal drying agent replaced 10 3 Dismantling the Sensor 10 3 1 Removing the Modules The light source transmitter is housed in the module on the right side of the sensor assembly Unscrew the knurled collar Withdraw the module The receiver module is located on the front of the instrument and held in position using a screw thread Unscrew the knurled collar to withdraw the module after first removing the cable from the monitor terminals and withdrawing through the cable gland In order to replace the desiccant it will be necessary to open up the transmit and receive modules Remove the air bleed screw from the end cap of the module The end cap will need to be removed in order to replace the desiccant This is a job for a
25. lows manual adjustment of the ModTechw address for the sensor under normal circumstances this should not be changed S 01 CONFIG S 01 Manual Clean This gives access to a new sub menu to configure the cleaning regime S 01 Info S 01 Remove S 0x Clean interval S 01 Modbus Address This allows this user to set the time between automatic cleans the time is Sot ean Cong set in minutes The factory setting is 360 minutes 6 hours the frequency can be adjusted between 2 and 1440 minutes 24 hours Under normal circumstances cleaning should be no more frequent that every 60 minutes Please remember the more frequently the sensor cleans the quicker the S 01 CLEAN CONFIG blade will wear out S 01 Clean Interval S 01 Clean Mode S 01 Service Life The sensor clean mode can be set to On Off S 01 Clean Service S 01 Clean Info 7 4 5 S 0x Clean Config S 0x Clean Mode S 0x Service Life The factory setting for the sensors is 3500 cleans between services this equates to around 2 years of normal operation This service life will need to be adjusted in some applications due to the variable nature of the solids being monitored Abrasive solids such as sand will cause the seal to wear out more quickly 225769IM 01 Issue Date 10 06 2012 Page 17 of 34 partech TurbiTechw LR Instruction Manual S 0x Clean Service This allows the user to reset the clean counter when a service is carried out S 0x Clean
26. mpose averaging on the measured value this is used to reduce the speed of reaction to the process changes The value can be adjusted between 0 and 6000 the higher the value the slower the reaction time M 01 CONFIG 8 2 7 M 0x Remove M 01 Info M 01 Title This allows the user to remove a measurement that has been selected in M 01 Units error or to allow re configuration of the system Please use this option with M 01 Set Zero care all user settings will be lost if the measurement is removed in error M 01 Set Cal 8 2 8 M 0x Display Position M 01 Averaging M 01 Remove This option allows the position of the measurement to be moved For example the Colour measurement can be changed from M 01 to M 02 so it will appear second on the list in MEASUREMENT CONFIG menu Page 20 of 34 225769IM 01 Issue Date 10 06 2012 O partech TurbiTechw LR Instruction Manual 9 Calibration When a new system is installed a period of 1 2 hour should be allowed for the TurbiTechw Sensor to stabilise before calibration commences This is to enable the system to adjust to the new ambient conditions This should not be considered as system warm up time from power up but to acclimatise to the environment if the sensor has come from a warm store to a cold sample point The standard calibration procedure involves a two point calibration zero and span the process for calibration is described below The sensors have linear responses
27. n sample point e Return address for equipment Description of fault or service required Any special safety precautions because of nature of application Page 30 of 34 225769IM 01 Issue Date 10 06 2012 0 TurbiTechw LR Instruction Manual partech 15 Technical Specification 15 1 Physical Dimensions uu EL 440 x 200 x 200mm HxWxD Environmental Clase IP68 Enclosure Material Black Acetal Co Polymer Weight 4 5Kg inc 10 metres of cable Operating Temperature 0 to 50 C Storage Temperature 20 to 60 C Wetted Pats renas Black Acetal 316 Stainless Steel Glass Seal Material Nitrile Mounting Location Indoor Outdoor Mounting eee Wall or Surface Cable Entries nenn Integral Cable Gland Cable Types inina 4 core 2 Twisted Pair 5mm O D Polyurethane Coated Cable Length u 10 metres Standard 100 metres Max Process Connections Inlet and Bypass BSP with 12mm Hose Tails Outlet 74 BSP with 8mm Hose Tail Pressure Rating Depth 1 Bar 571 AAA Automatic Self Cleaning FIOW Ral acacia 0 5 l min to 5 l min 15 2 Electrical S DD y esirinnas 12VDC from 7300w Monitor Sensor Communication ModTechw Protocol Specifically
28. ng cell and locates with a screwed collar A location peg makes sure the module is correctly aligned during replacement When replacing the module ensure the O ring remains correctly situated A dry clean cloth is required to carefully wipe around the inside of the M 01 CONFIG chamber to remove any moisture and fouling Fill the chamber with calibration standard Formazine M 01 Info M 01 Title From the 7300w Monitor navigate to the Calibration menu as follows M 01 Units M 01 Set Zero Press to show the MAIN MENU M 01 Averaging e Select MEASUREMENT CONFIG by pressing and press M 01 Remove e Select Colour by pressing Q and press to accept e Select SET CAL by pressing and press to accept The SET CAL screen will be displayed press to move on M 01 SET CAL CALIBRATE MEASUREMENT M 01 Turbidity S 01 TurbiTechw LR 0 30 SN 400001 Press OK to contiue or MENU to Exit M 01 SET CAL The SET CAL set calibration value screen will be displayed 10 00 NTU Enter the value for the calibration standard Default is 1ONTU Press or to move the cursor below the digit to be changed Use ytto set value Press e Or Q to increase or decrease the digit and press the Press OK to accept to accept the value Press MENU to cancel The SET CAL calibration screen will now be displayed M 01 SET CAL e Wait for the value to stabilise then pres
29. on of the required value _ 4000 A W 1 W parts water to 1 part 4000 FTU standard A Required FTU value The Formazin Dilution Chart table QAP 6 14 4 provides the mixture requirements to make various solutions using the 4000 FTU standard 13 1 4 Calibration When Formazin solutions are used for calibration testing of sensors sufficient solution is required such that the sensor is completely immersed When using light scatter sensors it is important that the sensor is positioned away from the sides and bottom of the container to prevent the light being reflected 13 1 5 Storage Life The turbidity standard should be stored in a Winchester bottle and kept in a cool dark place The bottle should be labelled to identify its content and also the date of preparation should be recorded The 4000 FTU standard has a shelf life of one year after which it should be discarded and a fresh solution should be prepared Page 28 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual Solutions made by diluting the 4000 FTU standard should also be stored in suitably labelled amber glass bottles and kept in a cool dark place Solutions above 400 FTU have a shelf life of one month after which they should be discarded Solutions below 400 FTU should be prepared from the 4000 FTU standard daily Solutions can be used outside of the storage life specified but any results taken must acknowledge this and be accep
30. oxes available separately Remove the 4 way connector from the 7300w Monitor by pulling downwards to disconnect for easy access to the connections Connect the sensor cores as follows Terminals from left to right on the 4 way connector Term 1 Left RED 12V 0000 0000 Term 2 Black 0V Term 3 White Data A Term 4 Right Green Data B Always connect the screen drain wire with the Black Term 2 Illustration Left shows drain wire and Black wire connected together and covered in Black Heat shrink Page 14 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual Always use Bootlace ferrules when terminating the sensors to ensure a good connection to the terminals 6 1 3 Extending Sensor Cables Sensors are usually supplied with 10M cables longer cables can be provided if requested These cables can be extended to a maximum length of 100M To ensure optimum performance only use Partech ModTechw cable for extensions Partech can supply junction boxes to allow for cable extensions These should be used on all installations where the cable length from the sensor to the monitor exceeds 20M Partech Junction boxes include on board filtering for long cable lengths Junction boxes are also useful for local connection of sensors close to the sample point This allows for easy replacement of sensors without the need to pull back cables to the monitor The junction box has an on board termin
31. qualified technician The drawing below is intended to give information on the internal construction of the module Page 24 of 34 225769IM 01 Issue Date 10 06 2012 0 partech TurbiTechw LR Instruction Manual 10 3 2 Accessing the inside of the emitter and receive modules Remove the stainless steel bleed screw on the end cap and pierce the silicone seal with a miniature screwdriver to make the withdrawal easier The end cap is held in place by an O ring seal There are three wires 2 attached to the end cap 3 from the internal PCB 1 so great care must be taken in removing the end cap Using the cable gland as a holding point wobble the end cap backwards and forwards in it s housing to gently release it from the body 10 3 3 Replacing the Desiccant Remove the desiccant bags and install two new ones first removing them from the foil wrapping WARNING Do not open the sealed foil sachets containing the desiccant until immediately before it is to be used The desiccant should be not be exposed for more than a few minutes before resealing the housing 10 3 4 Closing the Module Refit the end cap Ensure that the O rings are clean and free from any debris Use a small amount of silicon grease on the O ring Reseal the bleed screw with a small drop of non corroding silicone sealant The module may take a few hours to fully dry out Replace the module in the flow cell and repeat the operation for the other module 225769
32. s to accept Insert calibration standard into cell and wait for measurement to stabilise Press O several times to return back to the DISPLAY screen Calibration span is now complete 10 02 ru Press OK to contiue or MENU to Exit 225769IM 01 Issue Date 10 06 2012 Page 23 of 34 0 TurbiTechw LR Instruction Manual partech din 10 Maintenance 10 1 General cleaning Automatic cleaning is controlled by the 7300w Monitor A mechanical wiper operates at a pre set time interval user configurable by the 7300w Monitor This wiper can be set to operate every few hours if conditions demand but is usually set to 6 hourly Monthly or as required check the measurement cell for fouling The sensor chamber is easily accessed by removing the cleaning motor assembly The two optical windows are then visible as is the cleaning wiper mechanism Use a soft lint free cloth to wipe the windows The windows should have been kept clean by the automatic cleaning cycle Check the body of the cell for debris or biological fouling and clean as required 10 2 Inspection The flow cell will need periodic cleaning depending on the characteristics of the media being monitored This would normally be carried out at the same time as calibration A visual check of the Light Source can be made by removing the cleaning motor assembly and observing the light beam by projecting onto a sheet of paper There is a visible content in the l
33. s belief that the low surface area in contact with the potable water and the normal installation practise of feeding the sample stream to waste mean that this product is suitable for use in potable water treatment processing 5 2 Sensor Components The TurbiTechw Sensor comprises of the light source receive optics cleaning mechanism drain valve and interface unit Calibration Standard Interface Unit Clean Module Receiver Module Sample return Transmitter Module Sample Inlet Service Drain 225769IM 01 Issue Date 10 06 2012 Page 11 of 34 0 TurbiTechw LR Instruction Manual partech 5 2 1 Transmitter Module The transmit module positioned to the right of the flow cell contains the solid state emitter and the light intensity control components The light intensity is controlled automatically preventing signal degradation with time The light beam passes through the sample water Light is scattered and focused onto the target area The transmitter contains precision optical components and must be handled with care There is an O ring seal on the face of the transmitter module The light source module is retained using a screw collar 5 2 2 Receiver Module The receive module fitted on the front of the flow cell is sealed and needs no routine service The module contains a photo diode that receives the light from the solid state light source The output from the receiver module passes to the microproces
34. sitioned minimum 300mm higher than the inlet to the flow cell This will ensure the flowcell has a minimum of 300mm head of pressure Adjust the flow through the De Bubbler Sample Inlet high enough to allow a flow out of the De Bubbler vent Once a flow is established allow to settle for a few minutes then reduce the flow until the Vent flow just stops a small dribble from the vent is preferable to allow for small fluctuations in the flow The De Bubbler is now correctly set De Bubbler Vent Air gap between A De Bubbler amp Tundish De Bubbler m Tundish Tundish Drain E Y Sample outlet pe 300mm Minimum TurbiTechw LR Service Drain E 5 4 1 Optional Flow Verification Detector The flow verification detector is an optional extra for the measuring system The flow verification detector is fitted in line with the overflow drain outlet Once connected to the system the flow verification detector will provide a signal when no flow is detected 225769IM 01 Issue Date 10 06 2012 Page 13 of 34 Q TurbiTechw LR Instruction Manual partech 6 Electrical Installation 6 1 1 Electrical Installation A Unscrew the two cover screws on the lower panel of the 7300w Monitor to reveal the Terminals E
35. sor The received signal is increased proportionally with the turbidity level The receiver uses a combination of optical gain and electronic gain to view a very small area of the flow cell The receiver contains precision optical components and must be handled with care The receiver module may be removed from the flow cell by removing the cable from the interface and the rubber grommets on the bracket The module can then be unscrewed from the housing There is an O ring seal on the face of the receiver module 5 2 3 Cleaning Module The cleaning module is located in the top of the measuring cell and locates with a screwed collar Access to the cell for manual cleaning is most readily obtained by removing the cleaning motor assembly The cleaning arm has a simple wiper blade attached to it The module is controlled by the 7300w Monitor A location peg makes sure the module is correctly aligned during replacement Remove this cleaning module for access to the flow cell for cleaning and calibration 5 3 Mounting Whilst the TurbiTechw Sensor is suitable for outdoor location we recommend that the 7300w Monitor is installed indoors or within an outer enclosure Mount in a location free from excessive vibration 5 3 1 Process Connections Sample Inlet Y2 BSP Female thread fitted with 12mm Hose tail material Polyamide The inlet is fitted with a Nickel plated brass ball valve Outlet Ya BSP Female thread fitted with 8mm Hose tail mat
36. sor requires very little maintenance with no special tools or training required Calibration can be carried out against either a wet Turbidity standard or using the dry calibration reference cell that is supplied with every sensor The reference cell provides an extremely easy repeatable method of checking the performance of the sensor without the cost and inherent errors associated with chemical standards The TurbiTechw LR Sensor complies with the internationally recognised 1507027 standard for Turbidity measurement The unique sensor design captures stray light which ensures an ultra stable zero point this is combined with an automatic self cleaning mechanism that prevent the build up of fouling within the sample chamber TurbiTechw LR Sensor Page 6 of 34 225769IM 01 Issue Date 10 06 2012 partech TurbiTechw LR Instruction Manual 2 Introduction 2 1 Manual Conventions All dimensions stated in this manual are in millimetres unless otherwise stated The manual has been written assuming the user has a knowledge of instrumentation and an understanding of the type of measurement being made Training in the use of the 7300w Monitor and sensors can be provided please contact Partech for further information Icons have been used throughout this manual to draw your attention to precautions and useful notes They are categorised in the following way GENERAL NOTES Specifications and general notes of interest to the user
37. ted as less accurate When using solutions watch for flocculation the particles in the solution will appear to link together if this occurs discard the solution and prepare a fresh standard 225769IM 01 Issue Date 10 06 2012 Page 29 of 34 0 TurbiTechw LR Instruction Manual partech 14 Technical Support Technical Support is available by phone fax or email the details of which are shown below Phone 44 0 1726 879800 Fax 44 0 1726 879801 Email techsupport partech co uk Website www partech co uk To enable us to provide quick and accurate technical support please have the following information ready when you contact us Serial Number or original purchase details Sensor Type and Serial Number e Application details Description of fault Digital photos can also be useful to determine correct installation and suitability to the application 14 1 Returning Equipment for Repair If equipment needs to be returned to Partech for repair or service the following address should be used SERVICE DEPARTMENT PARTECH ELECTRONICS LTD CHARLESTOWN ST AUSTELL CORNWALL PL25 3NN UNITED KINGDOM Please include the following information with the returned equipment Also ensure that sensor is clean and adequately protected for transportation Advice on packing can be provided by our service department Contact name and phone number of person authorising the repair e Site details including applicatio
38. to most the solids found in most applications if a particular application has a non linear response it is possible to adapt the response of the sensor to improve accuracy this must be carried out in consultation with Partech Any containers used to store calibration samples should be cleaned prior to use This is particularly important when performing the zero point calibration The most accurate method of calibration is using a primary standard i e formazine solution This procedure has associated health risks therefore Partech supply a dry secondary standard with each flowcell These standards have been given a calibrated value that is equivalent to formazine in NTU Under normal circumstances and the correct storage these standards will last the life time of the instrument Is is important they are kept dry and free from scratches on the optical surfaces The choice of method will depend on the requirements of the application and will be guided by regulatory requirements Most regulators will require the use of formazine as the primary calibration tool with the dry calibration reference being used as a performance check Note The secondary dry standard is ALWAYS used to calibrate zero If further guidance is required please contact our Technical Support Engineers to discuss your requirements Zero Calibration Path Range Calibration Path 9 1 Calibration Frequency There is no absolute guide to the frequency of calibration The us
39. uce unwanted stray light to an absolute minimum resulting in a very accurate zero point The 7300w Monitor has the facility for converting the units to mg l under some circumstances further details are provided in the 7300w Monitor user manual The beam from the LED light source is passed through the sample of water contained in the measurement cell and the amount of light scattered by particles in the sample is measured at 90 degrees to the light source The 7300w Monitor uses an LED light source with an optical feedback loop to maintain constant light levels The sample flows through the flowcell continuously while the TurbiTechw LR Sensor is in measurement mode The large bore flowcell reduces the danger of fouling or clogging in raw water applications The TurbiTechw LR sensor is a dedicated flowcell sensor and uses a wiper type cleaner In the intended clean water applications this wiper is more than capable of keeping the optical surfaces clean The wiper should be replaced every two years to ensure the cleaning function remains effective The TurbiTechw LR sensor is available in two ranges 0 to 30NTU amp 0 to 500NTU The range is dictated by the hardware of the flowcell so cannot be changed by the user Therefore the range should be specified when the instrument is ordered All the example screens in this manual relate to the 0 to 30NTU sensor All the menu options and functionality are identical between the ranges except for the actu
40. your supplier as soon as possible Use care when unpacking the sensor NEVER use sharp instruments to open the packaging as this can cause damage to the sensor or cable Only use accessories specifically manufactured by Partech for use with this sensor Read the operating instructions carefully before installing and operating this sensor Keep the cable connections dry and free from contamination during installation Keep the sensor away from high voltage cables 3 2 Electrical installation Only suitably qualified personnel or a competent person may install operate or repair this equipment The installer must ensure all electrical installations comply with local wiring regulations and standards refer to BS7671 for UK installations Please check the sensor has been wired correctly Incorrect wiring may causes damage to the sensor or monitor The WaterWatch family of sensors are designed exclusively for use with the 7300w Monitor DO NOT connect to other monitors Sensors may need to be correctly addressed to the monitor before use Please read the Sensor Configuration section of this manual for full details 3 3 Operating Because these sensors have a wide range of applications users must acquire the appropriate knowledge to use these sensors in their specific application Partech are always available to provide advice and assistance in your application Please contact Partech for further information These sensors may need to
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