WaterTechw² Redox8000 Sensor Instruction
Contents
1. WaterTechw Redox8000 Dip Sensor 4 4 Insertion Electrode The Insertion Electrode has been specifically designed for use in closed loop pipe systems Mounting boss must be fixed to the pipework to allow the sensors to be fitted Partech can provided these specific for your application The sensors are provided with a ModTechw interface box that allows easy termination of the sensor cable to the monitor N ModTechw Interface pH Electrode Insertion Electrode Components Temperature Sensor Page 11 of 34 226686IM Iss01 Issue Date 19 09 2013 0 portech WaterTecwiRedox8000 Instruction Manual 5 Mechanical Installation Reliable accurate measurement from any instrument can only be achieved by correct installation of the measuring device in the case of the WaterTechw Redox8000 Sensor this is particularly important If you are in any doubt contact Partech or your local distributor for advice Below are some points that should be considered before starting to install the sensor or in the event an installed sensor gives unreliable measurements e Ensure that the sensor is immersed deeply enough into the sample e The sensor should be mounted in such a way as to allow easy access for calibration and maintenance It should be possible to remove the sensor from the process without the need to shut the process down The sensor must be monitoring a sample of the process that is representative of the whole process e To allow2. 0 5 to 4 metre in 0 5 metre increments Page 31 of 34 226686IM Iss01 Issue Date 19 09 2013 o parten WaterTechw Redox8000 Instruction Manual 226686IM 01 Issue Date 19 09 2013 Page 32 of 34 parten WaterTechw Redox8000 Instruction Manual 226686IM 01 Issue Date 19 09 2013 Page 33 of 34 partech
3. INSTRUCTION MANUAL WaterTechw Redox8000 Sensor partec This page is intentionally left blank O parten WaterTechw Redox8000 Instruction Manual Table of Contents th ta A PP Renee een 5 MN n E EE 5 1 1 1 What S e a EE 5 1 1 2 Wastewater Applications cccccccsscccscecseeceeeceeecueecueeseesaeesaeecauesageceueceueceeeaeseeseeseeaesuesueseesess 5 1 1 3 Nitrification and De ntrtcaton nana n nono nnnnenananns 5 1 14 Biological Phosphorus Rem val unicidad 5 1 1 5 What does the mV Scale Mett Zetuegstiteueedee iere Eege Eed 5 1126 SEIN ALY TY PP E r rrr rd 5 1 2 Waterlechw Redox8000 SENSOR ar nee ee eier rennen bee 5 A T 2 1 MIERSCHER 7 22 NA QW NV ee w AAA a o RU PO O ERES CO O OA T PRES Eo e LoT A ee ee ee ee een ei ee 7 ZA Te VIA SENSOR ee 7 3 oalety FS CAO Te een ee ee ee nee er 8 A 8 3 2 Electrical a taa 8 AA neo Tee 8 3 4 Service and Maltenan CO ams ct aia 8 23 9 End OF LIE DISPO Salseros 9 4 The Sei Sol andas tt ON EEN 10 4 1 The WaterTechw SensSors ononconcccnonconccnccoccnnccnnonccanoncon kak kak k kK KAK KA A KAK KA KAK KK KA k k KK kK kK kK KK kk kk kk kk kk 10 ae Po DB A 10 A OE i EE e e o OO 11 4 4 Insertion ESCUDO sona doi iii 11 5 Mechanical Installanon non noncnnnn na nnonnnn nana nnnnnananna ns 12 5 1 1 Mounting Options Flowcell assembhy 12 5 1 2 Mounting Options Dip HOUSING escocia a aan 13 5 1 3 Mounting Options Dip Housing Shaft
4. 7 3 3 M 0x Units Redox 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 The default is mV 7 3 4 M 0x Set Cal Low 124mV To perform Calibration of sensor See the calibration section of this manual for full details 7 3 5 M 0x Set Cal High 300mV To perform Calibration of sensor See the calibration section of this manual for full details 7 3 6 Averaging Redox This allows the user to impose averaging on the measured value this is used to reduce the speed of reaction to the process changes The following values are available for the user to select Damping Rate Response Time Seconds Typical Use AVERAGING Instant 0 2s Very Fast 1 second Y Very Fast 1s Default Fast 10 seconds rast 10s Medium 30 seconds Medium 30s Slow 1 minute Slow ge Very Slow 2 minutes Very Slow 2m 7 3 7 Remove Redox If a measurement is no longer required the measurement configuration can be removed from the 7300w monitor in the following way 1 From the MEASURMENT CONFIG screen use or to highlight the measurement to be removed i e M 01 Redox S 01 then press to select Page 23 of 34 226686IM Iss01 Issue Date 19 09 2013 0
5. Once the sensor has been added and registered the monitor will provide Sensor Status a list of functions specific to the sensor Press O or v to select the Add Sensor sensor and press Q The CONFIG MENU will display a list of sensor functions 6 4 1 S 0x Info S 01 CONFIG S 01 Info This function provides a range of diagnostic information that may be S 01 Remove requested by Partech for fault finding Press the key to access the S 01 Modbus Address information sub menu Only the first two pages of this sub menu are shown as they are deemed the most relevant for initial diagnosis S 01 INFO The fi f this inf i h h e first page of this information mene option shows the sensor type Type WaterTechw Redox8000 Modbus address and the sensor serial number Press the Q key to SN 423466 access the next page Address 19 Status OK Press OK or MENU to Exit Page 1 5 l l S 01 INFO The second page displays the installed firmware version numbers and the factory date Press the Q key to escape from this sub menu ren vive Y l a H l Common F W v1 05 63 Common 2 F W N A This will return us the the Sensor Config Menu again Factory Date 11 09 2013 10 29 Press OK or MENU to Exit Page 2 5 6 4 2 S 0x Remove S 01 CONFIG A This allows the sensor to be removed for re configuration of the monitor or 5 01 Info if a sensor has been added on error If a sensor has been replaced with a RAIN new sensors
6. the old sensor must be removed and the new sensor S 01 Modbus Address installed You will be prompted with Are you sure before the sensor is removed Press to accept and remove 6 4 3 S 0x Modbus Address S 01 CONFIG All Waterwatch sensors and Expansion Boxes communicate with the 5 01 Info monitor using the ModTechw Protocol This protocol is a modified S 01 Remove Modbus Protocol and has been specifically developed to take advantage of the advanced features and diagnostics designed into the w range of sensors The term Modbus Address has been used as a generic term to describe the address of each sensor and Expansion Box on the Modtechw network Once the first sensor has been configured it will be necessary to change the Modbus Address before connecting a second sensor if they are of the same type If only one sensor is to be connected to the 226686IM 01 Issue Date 19 09 2013 Page 20 of 34 0 WaterTechw Redox8000 Instruction Manual Partech 7300w monitor or several sensors of different types it is not necessary to change the Modbus Address All sensors and Expansion Boxes have default addresses starting from address 10 to 240 leaving addresses 1 9 free for user configuration It is good practice to allocate Sensors 1 8 to Modbus Address 1 8 The following describes how to change the Modbus address of a sensor S 01 MODBUS ADDRESS 1 From the SENSOR CONFIG screen use O or Y to h
7. Green White Data with Screen and Drain wire e Cores 24AWG 0 22mm 7 x 0 20mm e Outer Insulation PUR Polyurethane Blue RAL5003 Diameter 5mm 226686IM 01 Issue Date 19 09 2013 Page 18 of 34 0 WaterTechw Redox8000 Instruction Manual Partech 6 Sensor Configuration Before attempting to configure the sensor please read the user manual m 01 mV that came with your monitor The monitor manual will introduce you to the basic set up of the monitor and will familiarise you with the monitor menu structure and buttons 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 229 REDOX Monitor OK 09 59 45 11 07 13 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 Please note that live measurements are not available until the Sensor MAIN MENU Configuration stage has been completed Monitor Config Expansion Config 6 1 Sensor Config Sensor Config Measurement Config From the MAIN MENU screen select SENSOR CONFIG by pressing Q Alarm Config and press to accept Out
8. Partech for further information These sensors must be correctly 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 WaterTechw pH8000 Redox8000 sensors 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 226686IM 01 Issue Date 19 09 2013 Page 8 of 34 0 WaterTechw Redox8000 Instruction Manual Partech Gi 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 Page 9 of 34 226686IM Iss01 Issue Date 19 09 2013 0 portech WatertecwiRedox8000 Instruction Manual zech 4 The Sensor an
9. a single technician to calibrate and maintain the system the sensor should be placed within sight of the 7300w Monitor Although cable runs of up to 100 metres are possible operational problems can be caused e When possible angle the sensor so that it is pointing down stream this will allow any ragging to be removed by the flow past the sensor e Do not install where there is a likelihood of freezing 5 1 1 Mounting Options Flowcell assembly The flowcell assembly is mounted on a single stainless steel plate with 4x 6 5mm fixing holes Allow a minimum wall space of 330 x 300mm to fix the flowcell assembly pH Electrode 4 Flowcell Assembly Hose tails require 12mm I D Hose Allow a wall space of 330 x 300mm to intall the flow cell 300mm re RETURN 3 Temperature Sensor 330mm TT _ _ _ _ A TT 226686IM 01 Issue Date 19 09 2013 Page 12 of 34 0 WaterTechw Redox8000 Instruction Mans Partech 4OFF HOLES 6 5 THRU The inlet and return hose tails require a 12mm internal diameter hose Alternatively user fittings and hoses can be attached by removing the hose tails to reveal a 1 2 BSPT thread The flowcell has been designed to take a small positive pressure 1Bar on the inlet however the outlet from the unit is normally fed to an open drain We advise using an open drain as this allows visual inspection to confirm a flow is present The drawing to the right sh
10. e Phone 44 0 1726 879800 e Fax 44 0 1726 879801 e Email techsupport partech co uk e 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 e Serial Number or original purchase details e Sensor Type and Serial Number e Application details e Description of fault e Digital photos can also be useful to determine correct installation and suitability to the application 11 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 e Contact name and phone number of person authorising the repair Site details including application sample point e Return address for equipment e Description of fault or service required e Any special safety precautions because of nature of application 226686IM 01 Issue Date 19 09 2013 Page 30 of 34 0 WaterTechw Redox8000 Instruction Manual Partech 12 Technical Specification 12 1 Physical Flowcell Dimensions H x W x D 235 x 310 x 155 mm WEG ac ee 0 35 kg inc 2
11. in the region of 100 to 350mV In this condition the process is turning ammonia NH3 into nitrate NO3 The de nitrification process reduces the nitrate NO3 to nitrogen N2 the de nitrifying bacteria require the wastewater to have a redox potential in the range 50 to 50 mV 1 1 4 Biological Phosphorus Removal Nutrient removal is a key process area in wastewater treatment with ever lowering discharge consents Whilst many chemical processes have been implemented to aid the removal of Phosphorus the biological process still has a part to play The biological process requires a phase where volatile fatty acids in an anaerobic tank Redox 100 to 225mV cause the phosphorus to be released into solution This is followed by a phase where this soluble phosphorus is converted into a solid condition which can be removed by sedimentation this requires aerobic conditions Redox 25 to 250 mV 1 1 5 What does the mV Scale Mean Redox electrodes and hence the monitors and controllers associated with them provide an output that varies from 2000 to 2000 mV in practice the measurement span is more like 500 mV An increasing ve reading indicates the presence of a reducing agent such as BOD or COD whereas an increasing ve value indicates the presence of an oxidising agent such as Oxygen 1 1 6 Summary The use of Redox or ORP as a control parameter in wastewater treatment has the potential to reduce costs and to enhance the quality of
12. portech WatertecwRedox8000 Instruction Manual 2 Select REMOVE and press to select 3 Screen will display Are you sure Press to remove or O to exit without removing Once removed any Alarms or Analogue outputs configured to the measurement will also be removed 7 3 8 M 0x Display Position Redox Display Position allows two measurement to swap places to allow the user to re arrange the display as required The display position refers to the M 0 number allocated to the measurement The screen will always display the measurements in order from M 01 to M 16 To swap measurements use the DISPLAY POSITION menu The example below swaps measurement M 01 with M 03 1 From the MEASUREMENT CONFIG screen use or to highlight the measurement to be moved e M 01 Redox S 01 then press to select 2 Select DISPLAY POSITION using e or v and press Q to select 3 The current display position will be shown e g 1 for M 01 Redox S 01 4 Press a or to move the cursor below the digit to be changed 5 Press e or Y to increase or decrease the digit to the desired new position e g 3 6 Press to accept Measurement M 01 will now become Measurement M 03 and the measurement registered as M 03 M 01 CONFIG will now become measurement M 01 M 01 Units M 01 Set Cal Low 124 mV 7 Note any alarms or analogue outputs registered to a specific M 01 Set Cal High 300mV measurement will also be updated to th
13. provided an accurate calculation of the pH measurement however this measurement is provided to the user as an indication of the samples temperature Accuracy of this measurement lt 1 C For highly accurate temperature measurements we would suggest a dedicated temperature sensor 9 From the MAIN MENU screen select MEASUREMENT CONFIG by pressing or a and press 10 Select the Temperature S 01 by pressing Y or Q and press 226686IM 01 Issue Date 19 09 2013 MEASUREMENT CONFIG Measurement Status Add Measurement M 01 pH S 01 M 02 Temperature S 01 Page 26 of 34 0 WaterTechw Redox8000 Instruction Manual Partech 11 Select SET CAL 25 0 C by pressing Qor and press M 02 SET CAL 25 0 C CALIBRATE MEASUREMENT 12 SET CAL screen will confirm calibration is about to start Press ene Temperature S 01 WaterTechw pH8000 SN 400001 Last Calibrated 01 01 2013 00 00 00 By Press OK to contiue or MENU to Exit M 02 SET CAL 25 0 C 13 It is advised to calibrate to 25 C for best results however this screen allows the calibration temperature to be changed to a user value Use or Q to change the calibration value and press Q to accept 25 0 C Use 4 gt to set value Press OK to accept Press MENU to cancel M 02 SET CAL 25 0 C 14 Place the temperature sensor into a stable temperature medium to the temperat
14. the treated water and the sludge produced This measurement has yet to be fully exploited please contact our engineers for further guidance on how to install and operate our products 1 2 WaterTechw Redox8000 Sensors The WaterTechw Redox8000 sensor has been designed to provide highly reliable operation across the range of drinking water and waste water applications The flat faced electrode included the latest innovations Page 5 of 34 226686IM Iss01 Issue Date 19 09 2013 portech WatertechwiRedox8000 Instruction Manual in double junction reference with the ERP reference path We also offer a version of the electrode that is designed to monitor redox in low conductivity low ionic strength applications WaterT echw Redox8000 Dip Sensor WaterTechw Redox8000 Flow Cell with Electrode 226686IM 01 Issue Date 19 09 2013 Page 6 of 34 0 WaterTechw Redox8000 Instruction Manual Partech 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 basic 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 k N
15. to gain direct access to the sample using a dip sensor these are typically applications in drinking water and final effluent discharge The WaterWatchw platform has been designed to accommodate multiple sensors and multiple parameters in the same 7300w Monitor Versions of this flowcell are available to combine pH measurement with Turbidity Redox and DO These combinations provide an extremely cost effective way of monitoring for regulatory or control purposes 226686IM 01 Issue Date 19 09 2013 Page 10 of 34 0 WaterTechw Redox8000 Instruction Manual Partech 4 3 Dip Housing The Dip housing has been specifically designed for use in open channels and easy access points Mounting shafts are available in a variety of lengths to suit any application They range from 0 5 to 3 0 metre lengths A range of mounting bracket options are also available See Mounting Options section of this manual for full details The sensor connects directly to the 7300w Monitor For installation in applications where gross fouling is anticipated we recommend that the sensor is installed using our specially designed mounting system with a flexible joint in the mounting shaft The flexible joint moves the sensor in the process reducing bio fouling and allowing rags to fall away from the assembly This motion is similar to that achieved by using a floating ball assembly with the added advantage of placing the sensor below the surface of the liquid
16. Mount 13 5 1 4 Mounting Options Dip Housing Handrail and Wall Brackeis E 14 5 1 5 Mounting Options Insertion Elechode 15 5 1 6 Customer Supplied Ee EE 15 52 See a n ION es ee een nee ee 16 5 2 1 Electrical Installation Dip or ModTechw Interface to 20Uw 16 52 2 OTIS Ol ONE CONN Sacer cette EE 16 5 2 3 ModTechw Interface connections tO Gensors nen nenn nennen nennen nennen 17 5 2 4 Extending Sensor Cables neuen nenne kek K k kek kak nnnnnnnnnnnnnnennnnnnennnnnnn nenn 18 6 SAS ON COM UO tee ee ee bb bb 19 0 1 SCS OF SS Wdenceensapoeuneryexcumetasetakces 19 tSda Se EE 19 DA A eege 19 6 4 S 0x WaterTechw RedOXB8000 kaka ak kaka nint AK KK KAKA K KAKA KK KA K K KK KK KK KK IK KK kK Ak kk 20 BAT O ae M M MLM MMMMJJM ee ee N B B lt 3 O BDBDBHBB zu MMPDM E 20 k E ROMO EE 20 64 3 5 0x Modbus Ad d EE 20 226686IM 01 Issue Date 19 09 2013 Page 3 of 34 0 WaterTechw Redox8000 Instruction Manual DOC Measurement COMMUN AN OM er ass a A ds 22 Tel Measurement EE 22 7 2 Measurement CONG eege Egger ER Fek AJO MESU E 22 7 3 Measurement Menu HRedoxpO t nenn nenn nnnnannnnnnnennne name nenn nenn nnnnnnnnnnnnnnnnennnennne nen 23 ASN MOX ISA ON ee ee 23 71 3 2 MIOX Title R QOX iii dae 23 7 33 M OX UNS RECIO catar crac 23 aA M 0x Sel Call Low 1240 N ee aan 23 7 32 MOX Set Call A ee ee 23 EAN AG HI IR COON re ee 23 2 3 2 REMOVE ROO EE 23 7 3 8 M 0x Display Position REGOX a se
17. NU screen select MEASUREMENT CONFIG by pressing or a and press Select the Redox S 01 by pressing v or e and press It is advised to calibrate with the lowest mV standard first Select SET CAL LOW 124mV by pressing v or O and press SET CAL screen will confirm calibration is about to start Press This screen gives the option to enter the actual value of the redox standard being used Use or Q to change the calibration value and press Q to accept Place the redox sensor into the specified redox standard Allow the measurement to stabilise Once the measurement is stable Press Q to accept The calibration value will be stored in the sensor Repeat for GET CAL HIGH 300mV 8 2 Temperature Calibration MEASUREMENT CONFIG Measurement Status Add Measurement M 01 Redox S 01 M 02 Temperature S 01 M 01 SET CAL LOW 124MV CALIBRATE MEASUREMENT M 01 Redox S 01 WaterTechw Redox8000 SN 400001 Last Calibrated 01 01 2013 00 00 00 By Press OK to contiue or MENU to Exit M 01 SET CAL LOW 124MV 124 mV Use y4rto set value Press OK to accept Press MENU to cancel M 01 SET CAL LOW 124MV Insert sensor into calibration solution and wait for measurement to stabilise 122 mv Press OK to contiue or MENU to Exit Calibration of the temperature sensor is a single point calibration A temperature measurement is required to
18. OTES General notes of interest to the user GENERAL CAUTION Used where caution is required to prevent injury damage corruption of data loss of calibration or invalidation of warranty etc q ua E INSTALLATION NOTES General installation notes of interest to the installer d G 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 e pP ENVIRONMENTAL NOTES General notes on environmental issues waste and disposal 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 WaterTechw Redox8000 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 Page 7 of 34 226686IM Iss01 Issue Date 19 09 2013 0 portech WatertecwRedox8000 Instruction Manual Ba TAR AJO 3 Safety Precautions 3 1 General Read the safety precautions carefully Check the delivery of your Wate
19. ation is not normally addressed during basic systems commissioning 7 1 Measurement Status This option allows the user to review the current status of the 16 measurement channels Configured measurements will show the type of measurement and description and serial number of the sensor providing the measurement If only one measurement is configured the remaining fifteen measurement allocations will display DISABLED 7 2 Measurement Config 4 MEASUREMENT NFI From the MAIN MENU screen select MEASUREMENT CONFIG using oe 2 Measurement Status to highlight and press 7 2 1 Add Measurement 1 From the MAIN MENU screen select MEASUREMENT CONFIG by pressing v or Q and press Q Note that the screenshot on the left shows the MEASUREMENT CONFIG display with both pH and temperature measurements removed 2 The MEASUREMENT MENU should be displayed Press Y to highlight ADD MEASUREMENT and press 3 All available measurements will be displayed in a list Press or O to highlight the first measurement to be loaded 4 Press to select the measurement Repeat the process if more measurements are required 5 Each measurement will be allocated a measurement number from MEASUREMENT CONFIG M01 M16 A total of 16 measurements may be displayed Measurement Status Add Measurement N B The measurement number has no relevance to the sensor M 01 Redox S 01 number M 02 Temperature S 01 6 Pre
20. d Installation Whilst every attempt has been made to ensure that these instructions are correct common 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 The WaterTechw Sensors The Redox8000 sensor consists of an electronic assembly and a consumable replaceable part The WaterTechw Redox8000 sensor has been designed to provide highly reliable redox measurement along with temperature The sensor uses a flat surfaced electrode which includes an extended reference path these features combine to provide an extremely robust redox measurement suitable for use in surface water waste water and drinking water applications The electrode uses field proven flat surface self cleaning technology The reference system is enhanced by the Extended Path Reference ERP design which provides a complex path to protect the reference in the presence of interacting ions such as proteins silver and sulphides Electrode body PPS or Ryton 3 5M Acrylamide Gel Large Volume resists contamination ERP Extended Reference Path UHWW HDPE pH Junction Contaminants needs to travel further The above illustration shows the internal construction of the pH8000 electrode 4 2 Flowcell Assembly Our flowcell assemblies are intended for applications where it is not possible
21. dation and reduction that is the oxidation state of one or more of the elements is always changed The term Redox or Oxidation Reduction Potential ORP describes a chemical reaction involving oxidation and reduction the two processes always occur together because an oxidising agent is always reduced during oxidation and a reducing agent is always oxidised during reduction Redox Potential is a measure of the power of a substance to gain electrons in solution A strong reducing agent which readily loses electrons which it can give to another substance will have a high negative redox potential A strong oxidising agent will have a high positive redox potential Redox potential is the same as electrode potential 1 1 2 Wastewater Applications As Redox is a measurement of levels of reduction and oxidation processes within a solution or liquor it s use to determine the efficiency of the biological removal of ammonia and nitrate in the Activated Sludge Plants ASP would appear obvious Monitoring Redox allows an operator to determine whether biological reactions are occurring and whether any processes changes are required to improve the efficiency of those reactions 1 1 3 Nitrification and De nitrification Discharge limits mean that nitrification and de nitrification processes are required to remove ammonia nitrate and to break down pollutants in the wastewater The nitrification process is performed by nitrifying bacteria when he Redox value is
22. e a a ibas 24 7 3 9 M 0x Restore Defaults Hedox neuen neuen nenne KK KK KK KA KK k KK KK KK kK KK kk KAK 24 7 4 Measurement Menu Temperature 24 14 1 M 0X Info Temp EE 24 1 4 2 NMO IS E ne EE 24 LAS M 0X Set Gal 25 0 CT GIMP ME 24 FAA FV CT AGING Cl ue EE 25 A nn 25 7 4 6 M 0x Display Position emp 25 7 4 7 M 0x Restore Detaults 25 S A A 26 8 1 Redox Calibration LOW amp High nenn 26 82 Temperature Cal AUC usd oc ii A A WW r dk 26 SA rrr PPP e 28 921 General cie and sist ee ee ne re ee ee 28 2 INSDO 6 Ee 28 10 Optional nCGCOSSOF EE 29 11 Technica Helen 30 11 1 Returning Equipment for RepalM oocccoccccccnccccnccccncconnconcnconnnnnnnononnnoncnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnncnnnnos 30 12 Technical SOC CIA GAOM ee 31 12 1 PfilysiCal e e EE 31 12 2 Physical Dip excluding bat 31 12 3 ale ent RR EE 31 A A PA 31 12 5 Sevice Replacement ai nase sun nennen A dan selababodeds dnshibedcecadestendtecdewenes 31 PA ONS AM ee ee ee ee ee rrr 31 12 7 Mounting NEE Eegen 31 Page 4 of 34 226686IM Iss01 Issue Date 19 09 2013 0 WaterTechw Redox8000 Instruction Manual Partech 1 Foreword The WaterTechw family of sensors has been specifically designed for use with the 7300w Monitor 1 1 Redox Measurement 1 1 1 What is Redox The terms oxidation and reduction refers to the gain or loss of oxygen or hydrogen or electrons There is always a transfer of electrons in reactions involving oxi
23. e new display position it is not necessary to re configure alarms or analogues M 01 Averaging M 01 Remove 7 3 9 M 0x Restore Defaults Redox M 01 Display Position M 01 Restore Defaults This option restores the measurement configurations back to the factory default settings 7 4 Measurement Menu Temperature The following measurement menus are available once the Temperature measurement is installed M 02 CONFIG M 02Info OOOO 7 4 1 M 0x Info Temp M 02 Title M 02 Set Cal 25 0 C This option provides additional information on the measurement This M 02 Averaging information will only be required if a problem exists with the instrument performance M 02 Remove M 02 Display Position 7 4 2 M 0x Title Temp M 02 Restore Defaults This allows the title of the measurement to be changed from it s default 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 Temp Lane 1 The maximum number of characters is 20 7 4 3 M 0x Set Cal 25 0 C Temp To perform Calibration of sensor See the calibration section of this manual for full details 226686IM 01 Issue Date 19 09 2013 Page 24 of 34 0 WaterTechw Redox8000 Instruction Manual Partech 7 4 4 Averaging Temp This allows the user to impose ave
24. figuration e RED and BLACK wires provide the 12VDC supply to the sensor and the communication ground e WHITE and GREEN provide data communication A maximum of two sensors can be directly connected to the standard 7300w Monitor however additional sensors can be added using the optional Expansion Boxes 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 Pr ale 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 226686IM 01 Issue Date 19 09 2013 Page 16 of 34 WaterTechw Redox8000 Instruction Mans Partech Always use Bootlace ferrules when terminating the sensors to ensure a good connection to the terminals 5 2 3 ModTechw Interface connections to Sensors The Insertion Electrode and Flowcell electrodes cannot connect directly to the 7300w Monitor and requires the ModTechw interface box supplied The Flowcell sensor is supplied pre terminated ready for use however the Insertion Electrodes is supplied with a fly lead The details below show how to connect both the pH Electrode and Temperature sensors to the
25. from the process for service or calibration This is only necessary if the process flow can not be stopped by other methods Allow head room of 250mm or more above the boss to allow for the sensor to be removed from the pipework for service and replacement The sensors are provided with a 1m cable to connect to the ModTechw Interface box It is therefore necessary to fit the ModTechw Interface in close proximity to the sensors ModTechw Interface pH Electrode Mounting Boss pH Customer Pipe Optional Mounting Cross section view Bosses can be supplied specifically for your application Pleae ask Mounting Boss Temperature Temperature Sensor 5 1 6 Customer Supplied Brackets When creating brackets to mount the WaterTechw pH8000 Redox8000 sensors care should be taken to ensure that the following guidelines are observed e The bracket must be strong enough to support the sensor with minimum movement when installed into the sample e The sensor should be fitted by clamping around the sensor body or suspended by the cable e Consideration should be given to enable simple removal and replacement of the sensor for inspection calibration and servicing to be carried out Page 15 of 34 226686IM Iss01 Issue Date 19 09 2013 19 partecn Water Tech Redox8000 Instruction Manual A A 5 2 Electrical Installation 5 2 1 Electrical Installation Dip or ModTechw Interface to 7300w The followin
26. g Handrail and Wall Brackets The mounting shafts described above need to be attached to the structure of the tank or flow channel where measurement is required The mounting shaft sits inside the mounting bracket and is located using locking collars To remove the mounting shaft remove the locking thumb screw and lift the shaft from the bracket Care should be taken to ensure that the sensor can be reached from the walkway to allow removal for calibration and maintenance Example of possible mounting arrangements 226686IM 01 Issue Date 19 09 2013 Page 14 of 34 0 WaterTechw Redox8000 Instruction Manual Partech 5 1 5 Mounting Options Insertion Electrode The Insertion Electrode has been specifically designed for use in closed loop pipe systems Optional mounting boss are available for your specific application but not generally supplied with the sensors The illustration below shows 2x Stainless Steel Mounting Bosses welded to the Stainless Steel pipe Partech can provide these bosses to fit any pipe diameter or material Stainless Steel PVC ABS etc These bosses must be welded fixed to the pipework prior to installation The illustration shows the bosses welded at 90 to each other however the position is not important and can be fitted in any position as long as they are in close proximity to each other It may be necessary to fit isolation valves to one or both sides of the bosses to allow for the sensor to be removed
27. g instructions detail the connection of the ModTechw Interface box or the Dip sensors to the 7300w Monitor Unscrew the two cover screws on the lower panel of the 7300w Monitor to reveal the Terminals Each 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 A sit z RELAY 3 ANALOGUE 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 5 2 2 Sensor Connections When routing the sensor cables please ensure the cable is separated from any mains cables Although the Waterwatch sensors have a high resistance to interference separation of mains and data cables is always good practice and should be followed where practical All Waterwatch sensors and Expansion Boxes communicate with the monitor using the ModTechw Protocol This protocol is a modified Modbus Protocol and has been specifically developed 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 con
28. ighlight the sensor to be re addressed e S 01 19 WaterTechw Redox8000 then press to select Use Pto set value Press OK to accept 2 Select MODBUS ADDRESS and press Q to select 3 Press or to move the cursor below the digit to be Press MENU to cancel changed 4 Press Q or Y to increase or decrease the digit 5 Press to accept Once the Modbus address has been changed you are then free to configure the next sensor Note The Modbus address is stored in the sensor not the monitor Page 21 of 34 226686IM Iss01 Issue Date 19 09 2013 0 portech WatertecwRedox8000 Instruction Manual 7 Measurement Configuration The monitor leaves the factory without any measurements configured Measurements can only be added after installing the relevant sensor s MEASUREMENT CONFIG Once the sensor s have been registered with the monitor and installed the measurements are then available to be configured if required Add Measurement M 01 Redox S 01 The screen shot to the left shows the default configuration after the M 02 Temperature S 01 installation of the WaterTechw Redox8000 sensor on a single sensor configuration There are two default measurements M 01 Redox S 01 M 02 Temperature S 01 If a measurement has been removed or the temperature measurement for example is no longer required then the following descriptions should be followed Otherwise measurement configur
29. interface box These connections are the same for both Flowcell and Insertion assemblies ModTechw cable from the monitor connects to the LEFT four way terminal block labelled MONITOR on the circuit board e The 12VDC supply RED core connects to the first LEFT terminal of the four way terminal block labelled RED e The OV supply BLACK core connects to the second terminal of the four way terminal block labelled BLK e The DATA A WHITE core connects to the third terminal of the four way terminal block labelled A WHT e The DATA B GREEN core connects to the Fourth terminal of the four way terminal block labelled B GRN The pH or redox electrode connects to the middle three way terminal block labelled pH on the circuit board e The centre core of the Coax cable coloured white connects to the RIGHT terminal of the three way terminal block labelled RED e The Screen of the Coax cable covered with Black heatshrink connects to the MIDDLE terminal of the three way connector block labelled Blu Temperature sensor connects to the right hand three way terminal block labelled TEMP on the circuit board e The RED core connects to the RIGHT terminal of the three way terminal block labelled RED e The BLUE core connects to the MIDDLE terminal of the three way connector block labelled BLU e If the Temperature cable is fitted with a Screen this should be connec
30. metres of cable Protection Class IP65 Enclosure Material Black Acetal Co Polymer with Stainless Steel Mounting Plate Electronics Housing IP65 Polycarbonate Electrode Booy PPS Ryton Cable Lengh 2 metres Standard 100 metres Max 12 2 Physical Dip excluding shaft Dimensions UULULLLL 60 mm Diameter x 255 mm long WO Essence trad 0 35 kg inc 10 metres of cable Protection Class IP68 Enclosure Material Black PVC with Nylon Cable Gland Electrode Booy PPS Ryton Cable Length 10 metres Standard 100 metres Max 12 3 Environmental Data Operating Temperatures 0 to 70 C Storage Temperatures 0 to 70 C Location Indoor Outdoor 12 4 Electrical A 12VDC from 7300w Monitor Sensor Communicati0n Partech w Protocol Specifically developed for WaterWatch range 12 5 Service Replacement Consumable Pari Electrode Replacement 12 6 Measurement 2 Measurement Redox 1000 to 1000mV 2mV Combined Electrode Redox Reference Double Junction ERP Reference 0 70 C Integrated circuit temperature transducer 12 7 Mounting Options Dip Mounting Shatf
31. o be changed 5 Press e or Y to increase or decrease the digit to the desired new position e g 3 6 Press to accept Measurement M 01 will now become Measurement M 03 and the measurement registered as M 03 will now become measurement MOT 7 Note any alarms or analogue outputs registered to a specific measurement will also be updated to the new display position it is not necessary to re configure alarms or analogues 7 4 7 M 0x Restore Defaults This option restores the measurement configurations back to the factory default settings Page 25 of 34 226686IM Iss01 Issue Date 19 09 2013 partech 8 Calibration WaterTechw Redox8000 Instruction Manual Once the measurement has been added and registered the monitor will provide a list of functions specific to the measurement Press Q or to select the measurement in the MEASUREMENT MENU and press The CONFIG MENU will display a list of measurement functions including the Calibrate function 8 1 Redox Calibration Low amp High Calibration of the redox sensor is a dual point calibration Two redox standards are required to provided an accurate calculation of the redox measurement Typically 124mV amp 300mV The SET CAL LOW 124mV uses the lower value standard and the GET CAL HIGH 300mV uses the higher value standard The values stated in brackets will change to whatever standard has been used after a successful calibration 1 T 8 From the MAIN ME
32. ows the hole centres of the Stainless Steel plate used to mount the flowcell assembly 5 1 2 Mounting Options Dip Housing Partech offer a range of mounting brackets for the installation of the WaterTechw pH8000 Redox8000 sensors which will allow the user to apply the sensor in a wide variety of locations Drawings of the brackets are shown in the relevant Optional Accessories sections of this manual When assessing mounting options attention should be paid to the accessibility of the sensor for calibration and maintenance stability of the sensor in the flow conditions present on site and to ensuring the sensor is fully submerged at all times 5 1 3 Mounting Options Dip Housing Shaft Mount Mounting shaft fitting can be used to allows the WaterTechw pH8000 Redox8000 sensors to be fitted to a number of mounting accessories Partech supply mounting shafts manufactured from 2 nominal bore grey ABS pipe in 0 5 1 0 1 5 2 2 5 and 3 0 metre lengths Whilst other lengths can be provided as special orders generally standard lengths will satisfy most requirements It should be noted that sensors with long mounting shafts are difficult to move safely and can present problems with calibration and maintenance shaft lengths should be kept to a minimum where possible Page 13 of 34 226686IM Iss01 Issue Date 19 09 2013 portech _____________________ WaterTechw Redox8000 Instruction Manual 5 1 4 Mounting Options Dip Housin
33. put Config Information 6 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 6 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 Y to highlight ADD SENSOR and press 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 Default sensor address for WaterTechw pH8000 18 4 Once the search is complete the Monitor will display a list of sensors found Each sensor will be automatically allocated a new number 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 Ifa single or multiple sensors have been found the can be pressed to escape from Page 19 of 34 continuing the search 226686IM Iss01 Issue Date 19 09 2013 0 partech WatertecwiRedox8000 Instruction Manual 6 4 S 0x WaterTechw Redox8000 SENSOR CONFIG
34. rTechw Sensor for damage Any damage should be reported to 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 competent person may install operate or repair this equipment The installer must ensure all electrical installation comply with local wiring regulations and standards refer to BS7671 for UK installations Please check the sensor has been terminated correctly Incorrect termination 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 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
35. raging on the measured value This is used to reduce the speed of reaction to the process changes Default is 1 second this should be sufficient for most applications 7 4 5 Remove Temp If a measurement is no longer required the measurement configuration can be removed from the 7300w monitor in the following way 1 From the MEASURMENT CONFIG screen use or to highlight the measurement to be removed i e M 01 Temperature S 01 then press Q to select 2 Select REMOVE and press Q to select 3 Screen will display Are you sure Press Q to remove or to exit without removing Once removed any Alarms or Analogue outputs configured to the measurement will also be removed 7 4 6 M 0x Display Position Temp Display Position allows two measurement to swap places to allow the user to re arrange the display as required The display position refers to the M 0 number allocated to the measurement The screen will always display the measurements in order from M 01 to M 16 TO swap measurements use the DISPLAY POSITION menu The example below swaps measurement M 01 with M 03 1 From the MEASUREMENT CONFIG screen use or to highlight the measurement to be moved i e M 01 Temperature S 01 then press to select 2 Select DISPLAY POSITION using Q or Y and press to select 3 The current display position will be shown e g 1 for M 01 temperature S 01 4 Press a or to move the cursor below the digit t
36. ss to return back to the display screen The first configured measurements should now be displayed 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 226686IM 01 Issue Date 19 09 2013 Page 22 of 34 0 WaterTechw Redox8000 Instruction Mans Partech 7 3 Measurement Menu Redox8000 MEASUREMENT CONFIG Selecting a measurement channel will reveal a new sub menu associated Measurement Status with that measurement In MEASUREMENT CONFIG press to Add Measurement highlight the required measurement and press M 02 Temperature S 01 The sub menu for redox is as follows 7 3 1 M 0x Info Redox This option provides additional information on the measurement This information will only be required if a problem exists with the instrument M 01 CONFIG performance M 01 Info XE M 01 Title 7 3 2 M 0x Title Redox M 01 Units M 01 Set Cal Low 124 mV M 01 Set Cal High 300mV M 01 Averaging This allows the title of the measurement to be changed from it s default 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 M 01 Remove example this could be changed to Redox Lane 1 The maximum number of characters is 20
37. ted to the LEFT Terminal labelled SCR LA ee e Se 7 do ag N DA r ig A Q Z LLI JE nc Si 0 et M MONITOR Page 17 of 34 226686IM Iss01 Issue Date 19 09 2013 portech WatertecwiRedox8000 Instruction Manual REFER TO MANUAL N gt TEMPERATURE SENSOR 14A K MG UITA A a 5 2 4 Extending Sensor Cables Sensors are usually supplied with 10M cables longer cables can be provided by request These cables can be extended to a maximum length of 100M To ensure optimum performance we advise the use of Partech ModTechw cable for extensions Partech can supply Junction Boxes to allow for easy termination of 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 terminator 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 performance of the sensor and monitor Always ensure the screen is continued when making joints ModTechw Cable specification e 2 Twisted Pair Red Black Power and
38. ure specified above Allow the measurement to Insert sensor into calibration solution stabilise Once the measurement is stable Press Q to accept ML io as 15 The calibration value will be stored in the sensor 24 5 C 16 Calibration complete Press OK to contiue or MENU to Exit Page 27 of 34 226686IM Iss01 Issue Date 19 09 2013 0 portech Watertecw Redox8000 Instruction Manual amp 9 Maintenance 9 1 General cleaning The flat end of the redox sensor must be kept as clean as possible If dirty wash the end in soapy water and rinse before storage or use If this is not enough soak the sensor in a special cleansing solution overnight then rinse before use As far as possible avoid any contact between the measurement surface and oil hydrocarbons or colloids 9 2 Inspection The WaterTechw Redox8000 Sensor should be periodically inspected and cleaned as described above 226686IM 01 Issue Date 19 09 2013 Page 28 of 34 oartech WaterTechw Redox8000 Instruction Manual 10 Optional Accessories Partech have a full range of brackets and mounting shafts for a number of application Please contact Partech for details Example of our standard hand rail bracket 250 mm 9 8 Page 29 of 34 226686IM Iss01 Issue Date 19 09 2013 0 portech WatertecwiRedox8000 Instruction Manual 11 Technical Support Technical Support is available by phone fax or email the details of which are shown below
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