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aztec series 5000 installation & commissioning manual

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1. 28 5 5 Assembly ot Makareth DO WA Wa 30 5 5 1 Fitting the pneumatic cylinder to the plastic ABS pole 30 5 5 2 Fitting the sensor extension to the pole assembly 30 2 9 9 Fitting the sensor head and cable to the sensor extenslton 3 5 5 4 the MAKADA EET 31 5 5 5 Fitting the calibration shroud ball 33 5 5 6 the SC AIC 9 34 2591 Sealing the pole Makareth wet end only 34 5 5 8 Securing the pneumatic blue tube and the sensor cable 35 5 5 9 35 5 6 Assembly Wed DO wet eng u 37 5 6 1 Fitting the pneumatic cylinder to the plastic ABS pole 37 5 6 2 Fitting the sensor extension to the pole assembly 37 5 6 3 Fitting the sensor head and cable to the sensor extension 37 5 6 4 linea pelli 39 5 6 5 Fitting the calibr
2. 11 3 7 Access t0 Di M 12 3 7 1 Front Panel Interface Local 22222 1 2 22202 20055500005000000000000000000000000000000344 12 2222 Local PC Access Serial Commuanicaliong uu L u u u s a 13 on Romo u OTT E 13 4 DO TECHNICAL SPECIFICATION 15 5 JNSIALBATIODN iar ali 19 5 1 AOTC HAN irn uuu uu 19 5 1 1 SC Oia MCG CANONS idr 19 5 1 2 Porsonnel Skall Loweli 20 5 1 3 i casei noriend unMlvi 20 5 4 Pre coimmissiontnpg checks and tas Ks once EE ee diea iie eure 21 5 2 Installation of Main Electronics Pancel 21 5 3 Physical Installation of Local Control Box 23 5 3 1 L ocalConirolBoxPneumales a aiar 24 5 4 Probe Assembly Ins tal atom ai 25 5 4 1 General Deseti 25 V AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 4 2 Nonne ai 26 5 4 3 sl 0 010 idol 28 5 4 4 Types or DO wet end Assembly
3. AAA 41 64 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES SEVERN TRENT SERVICES INTERNATIONAL OFFICES EUROPE Severn Trent Services Instrumentation Division 8 Hawksworth Southmead Industrial Park Didcot Oxon OX11 7HR Tel 44 1235 512000 Fax 44 1235 512020 Email salesenq capitalcontrols co uk LATIN AMERICA Severn Trent Services Water Purification Solutions 1110 Industrial Blvd Sugar Land TX 77478 USA Tel 281 240 6762 Fax 281 682 7700 MIDDLE EAST NORTH AFRICA Severn Trent Services Water Purification Solutions 44 Palestine Street 5 Floor New Maadi Cairo Egypt Tel 202 703 2005 Fax 202 703 2001 USA CANADA Severn Trent Services Water Purification Solutions 3000 Advance Lane Colmar PA 18915 USA Tel 215 997 4000 Fax 215 997 4062 CHINA Severn Trent Services Water Purification Solutions 129 Jinyu Plaza Rm 0718 Xuanwumen Xidajie A Xicheng Qu Beijing 100031 China Tel 86 10 6641 6802 6641 6688 ext 8398 8399 Fax 86 10 6641 0032 ASIA PACIFIC Severn Trent Services Water Purification Solutions No 10a Jalan 5521 58 Damansara Utama 47400 Petaling Jaya Selangor Malaysia Tel 603 7727 6729 Fax 603 7727 6815 Visit our website at www severntrentservices com 65 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERIN TRENT SERVICES Design improvem
4. hup Ul 0 kita t Aa NETT D be Er ed nmm am s gt nee ee ee 2 2 j TESI no p lt 4 4 Y YAA AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual 2 49 5 7 3 i Terminal designations for single DO instrument with amp without optional comms nas i ALOGUE ANALOGUE ANALOGUE ANALO OUT 1 nae 3 Terminal Analogue Output 0 Analogue Output 0 Analogue Output 1 Analogue Output 1 Analogue Output 2 Analogue Output 2 Analogue Output 3 Analogue Output 3 N rea IN Terminal Function Analogue Output 1 ve Analogue Output 1 ve Analogue Output 2 ve Analogue Output 2 ve Analogue Output 3 ve Analogue Output 3 ve Analogue Output 4 ve Analogue Output 4 ve Function Mains in E Mains Line supply Earth Mains in N Mains Line supply Neutral Mains inL Mains Line supply Live Terminal Function SSR amp Compressor supply control SSR These terminals are Pre wired on units with integral compressor Terminal Dig in 0 Dig in 0 Dig in 1 Dig in 1 Function Calibration request 24V Calibration request OV Uncommitted Uncommitted SEVERN TRENT SE
5. 2 4 2 0000 0 00000000000000000000 12 Fuseratings and DOSIHOBS imer Et RUIN EIE 54 H ooo tees ee 11 I O i NOLO ira MNS ipp AJI i AA AA 19 Installation of Local Control eee ein 23 Installation of Main Electronics Panel n nnn 21 INTRODUCTIO N aulin 62 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT L 1 uuu a 43 51 oC OMA GT OUTS RR Em 43 local Control Box bu u nn en SUIS s EIE NUI SN EU RUE 24 Local Control Box uuu uuu u un TIER IU METUUNT E E 24 M Prope armo a ARR 10 Mam S s ei SS o Mr 9 10 Main System Assembly and Local Control Box interconnections 43 Molin 42 VE et u uu kusana MM 4 Manual intervention mode iaia ear 11 Mounino Dr RO ___ dt 26 N Normal measuring mode Li 11 Operational Principles u 11 WI onne ONS 10 III 185 RA 30 37 nia 34 40 OO iii C 1 59 6 aioe tay aus usss 51 POW Ort AA amaka saam INE MEI P
6. RS232 9 WAY PLUG u 240 9 448 SEE NOTE 5 Figure 2 System Dimensions with optional mounting panel units in millimetres 17 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual Sma PROCESSOR TRANSMITTER 5 SENSOR CONNECTOR 9 PIN PLUG RED BLUE 5 PNEUMATIC LINES TO WET END CREEN RS252 9 WAY PLUG 50 1 700 27 560 800 31 500 COMPRESSOR 600 23 622 el 50 1 968 364 14 330 AR INLET OUTLET FILTER ENSURE AN AIR SUPPLY TO OUTER ENCLOSURE COMPRESSED AIR VENT 50 1 968 175 6 890 NOTES 1 AIR CONNECTIONS TO WET END ARE COLOUR CODED 2 ELECTRICAL CONNECTIONS TO LOCAL WET END ARE BY MULTIWAY PLUG SOCKET 5 ELECTRICAL CONNECTIONS TO REMOTE CONTROL UNIT ARE MADE ON 12 CORE CABLE FROM CONTROL PANEL ASSEMBLY CABLE AND GLANDING SUPPLIED BY OTHERS 4 ENCLOSURE PROTECTION IP67 9 POSITION CLIPS TO SUIT HANDRAIL SPACING ADJUSTABLE UNISTRUT CLAMP HEIGHT TO SUIT HANDRAIL Figure 3 System Dimensions with optional mounting panel amp integral compressor units in millimetres 18 AZTEC SERIES 5000 DO DO MLSS Installation 8 Commisioning Manual SEVERN TRENT SERVICES 5 1 1 19 INSTALLATION General Rules It is important that the installing engineer fully r
7. refer to the section on serial communications DIP command Verify the DIP DIL switch positions See Page 191 in the full manual These will have been set in the factory If changed accidentally a cold restart will be necessary AZTEC SERIES 5000 DO DO MLSS Installation 4 Commisioning Manual SEVERN TRENT SERVICES The items detailed in a to I above must be verified as being satisfactory before proceeding beyond this point Fuse ratings and positions 20mm 5A fast blow fuse F4 20mm Anti surge 500 mA g i M al F2 20mm Anti surge 500 mA gemme d DA cH mi etaman 5025 pa F3 20mm Anti surge 500 mA F1 20mm Anti surge 250 MA Figure 25 Fuse ratings and location 94 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 6 2 Power up It is necessary for the instrument to know the correct date and time before logging will occur It also needs to know when it has a new DO sensor cell or cells installed If the instrument has not been powered up before it will do this automatically by performing a cold start If it has been powered up before it will perform a warm start It will remember the set date and time but will need to be told if a new DO cartridge has been installed The procedure for both these situations is given below Cold Start Clock Setting On power up the following display requesting the user t
8. 3 4 LIBERATES SULPHUR DIOXIDE IN CONTACT WITH MINERAL ACIDS AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES gt em FIRST AID MEASURES THOROUGHLY RINSE ANY SPILLAGES ON THE SKIN WITH CLEAN WATER IRRIGATE EYES IMMEDIATELY WITH WATER IF SPLASHED AND SEEK MEDICAL ATTENTION SEEK IMMEDIATE MEDICAL ATTENTION IF INGESTED FIRE FIGHTING MEASURES 5 1 5 2 5 3 5 4 5 5 5 6 FLASH POINT NON COMBUSTIBLE FIRE FIGHTING METHOD NOT APPLICABLE AUTOIGNITION TEMPERATURE NOT APPLICABLE FLAMMABILITY LIMITS LOWER LIMIT NON FLAMMABLE UPPER LIMIT NON FLAMMABLE UNUSUAL FIRE AND EXPLOSION HAZARDS IF HEATED TO DRYNESS NON COMBUSTIBLE SODIUM SULPHITE GENERATES HAZARDOUS SULPHUR DIOXIDE DURING DECOMPOSITION COMMON EXTINGUISHING METHODS NOT APPLICABLE HANDLING AND STORAGE QUANTITIES INVOLVED ARE SMALL HOWEVER YOU SHOULD STILL WEAR PROTECTIVE GLOVES AND GOGGLES WHEN HANDLING SIOREIN THE CONTAINER PROVIDED AND KEEP THE CONTAINER CAPPED WHEN NOT IN USE EXPOSURE CONTROL PERSONAL PROTECTION AVOID DIRECT OR INDIRECT CONTACT WITH THE SOLUTION WEAR PROTECTIVE CLOTHING GLOVES AND EYE PROTECTION AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Section spacer page 8 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES DESIGN gt General
9. The main system unit consists of either two or three modules mounted on a single polypropylene backboard The diagrams below show the typical layouts of the Main System Assembly both with and without an integral compressor Figure 4 Main electronics panel without integral compressor AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN IRENI SERVICES 22 Figure 5 Main electronics module with integral compressor amp optional mounting panel When so ordered the units will be supplied on a polypropylene mounting board with Unistrut channel affixed to the rear face In addition a pre wired isolator and Unistrut pipe clamps are provided such that the whole assembly may be easily hung from handrails If an alternative mounting system is required then the Unistrut channel may be removed and the predrilled holes used for fixing by alternative means In a double DO system the main panel should be installed adjacent to the first DO sensor assembly AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN IRENI SERVICES 23 Physical Installation of Local Control Box One local control box is normally supplied as standard with a double DO system The local control box contains the DO sensor head amplifier pneumatic valves and wiring terminals for connection to the main panel for the wet end assembly situated remotely from the main electronic
10. Diagram showing the fitting of Makareth DO 32 Figure 14 Diagram of split collet for Makareth Wet end a 34 Figure 15 Diagram of Clark cell DO Wet End 5 36 J pure T6 DO cell retaminp ieri 39 Figure 17 Illustrations showing the fitting of the Clark DO cell 39 Figure 18 Main System Assembly showing external connections enne 41 Figure 19 Diagram showing mains line power connectors nennen nennen nnns 42 Figure 20 Diagram showing control signal cable between Main System Assembly and Local Control Box 43 Figure 21 5 7 3 1 Terminal designations for single DO instrument with amp without optional comms 45 Figure 22 5 7 3 11 Terminal designations for single DO with Local Control Box shown overleaf 47 Figure 23 5 7 3 111 Terminal Designations for double DO instrument with LCB shown overleaf 49 Figure 24 Signal cable s screen termination detall n 5 2 Fuse ratings and aaa 54 vii AZTEC SERIES 5000 DO DO MLSS Installation amp Commisionin
11. Aerate T7 Down T8 Up 112 LCB Buttons enable T1 Head amp supply 15V T2 Head amp supply OV T3 Head amp supply 15V T4 DO signal T5 Signal common T6 Temperature signal T11 Compressor on Pneumatic solenoid valves AIR SUPPLY UP DOWN AERATE Non return valve Signal cable Screen clam P UP DOWN AERATE AIR Green Red Blue from main assembly Motherboard Main I O terminal SSR AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Figure 23 5 7 3 iii Terminal Designations for double DO instrument with LCB shown overleaf ae JI L L L L dti ANAL ANAL ANAL OGUE ANAL OGUI DUT 8 OUT 1 DUT 2 49 HHHH 2 2 JE 218 TE erc Main I O Terminal RLO NC RLO COM RLO NO RL1 NC RL1 COM RL1 NO RL2 NC RL2 COM RL2 NO RL3 NC RL3 COM RL3 NO Function Alarm 1 normally closed Alarm 1 common Alarm 1 normally open Alarm Alarm Alarm Alarm Alarm Alarm Alarm Alarm Alarm 2 normally closed 2 common 2 normally open 3 normally closed 3 common 3 normally open 4 normally closed 4 common 4 normally open Comms I O Terminal CN1 Tx CN1 Tx CN1 Rx CN1 Rx CN1 OV CN2 Tx CN2 Tx CN2 Rx CN2 Rx CN2 OV Comments Volt free contacts Volt free contacts Volt free co
12. Installation amp Commisioning Manual SEVERN TRENT SERVICES DO APPENDIX A CERTIFICATE OF CONFORMITY A copy of the certificate of conformity is available on request from Severn Trent Services 8 Hawksworth Southmead Industrial Park Didcot Oxon OX11 7HR UK Tel 44 0 1235 512000 Fax 44 0 1235 512020 email salesenq severntrentservices co uk 59 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES DO APPENDIX B WARRANTY EXCLUSIONS 60 The AZTEC DO System is subject to the terms and conditions of Severn Trent Services general instrument warranty Because of their consumable nature certain items are excluded from this warranty and are listed below Air filters DO Cell Sensor cartridge DO Sensor membranes and O rings O rings DO Cleaning brush Unless a Severn Trent Services authorised engineer installs and commissions the instrument Severn Trent Services has no control over the conditions under which any sensors are used and as such the warranty for wet end components is dependent upon correct installation handling usage and application AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES DO APPENDIX D SOFTWARE LICENCE AGREEMENT SOFTWARE LICENCE AGREEMENT AGREEMENT Severn Trent Services STS STS grants to you and you accept a license to use the programs and re
13. SPECIFICATIONS IN CASE OF COMBINATIONS OF MIXTURES ONE MUST CONFIRM THAT NO NEW HAZARDS ARE LIKELY TO EXIST IN ANY CASE THE USER IS NOT EXEMPT FROM OBSERVING ALL LEGAL ADMINISTRATIVE AND REGULATORY PROCEDURES RELATING TO THE PRODUCT PERSONAL HYGIENE AND INTEGRITY OF THE WORK ENVIRONMENT UNLESS NOTED TO THE CONTRARY THE TECHNICAL INFORMATION APPLIES ONLY TO PURE PRODUCT 9 AZTEC SERIES 5000 DO DO MLSS Installation 8 Commisioning Manual SEVERN TRENT gt SERVICES PRODUCT IDENTIFICATION 1 1 PRODUCT NAME SODIUM SULPHITE SOLUTION 1 2 CHEMICAL NAME INORGANIC SODIUM COMPOUNDS 1 3 SYNONYMS DO ELECTRODE STORAGE SOLUTION COMPOSITION INFORMATION ON INGREDIENTS CONSISTS OF AN AQUEOUS SOLUTION CONTAINING TYPICALLY 3g BUT POSSIBLY UP TO 10g ANHYDROUS SODIUM SULPHITE PER 100 ml WATER DECOMPOSES IN AIR TO SODIUM SULPHATE BY ABSORPTION OF OXYGEN HAZARD IDENTIFICATION 3 1 ANHYDROUS SOLID SODIUM SULPHITE IS AN ODOURLESS FREE FLOWING WHITE CRYSTAL ITS SOLUTION IN WATER IS USED AS A STORAGE MEDIUM FOR SENSORS REQUIRING AN OXYGEN FREE STORAGE ENVIRONMENT 3 2 ROUTE S OF ENTRY INHALATION NO SKIN YES INGESTION YES 3 3 EFFECTS OF EXPOSURE MAY CAUSE IRRITATION EYES MAY CAUSE IRRITATION SKIN MAY CAUSE IRRITATION INGESTION ORAL EXPOSURE OR SWALLOWING MAY PRODUCE GASTROINTESTINAL UPSET NAUSEA OR VOMITING INGESTION MAY BE FATAL SULPHITE SENSITIVE INDIVIDUALS MAY EXPERIENCE A SEVERE ALLERGIC REACTION
14. Successful existing installations have the Main System Assembly and the DO Probe Assembly adjacent to each other and mounted on hand railing where this permits The Main System Assembly when ordered is supplied with fittings to allow direct mounting on hand railing or similar support structure The mounting height of the Main System Assembly should be between 1 metre and 2 metres above local floor level and front access must not be restricted The protection rating of the main system unit is IP67 and care should be taken that the installation will not compromise the integrity of the protection AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 1 2 20 It is advisable to locate the DO Probe Assembly away from areas that are known to have Excessive organic growth patterns Excessive levels of surface layer turbulence Surface scum foam accumulation Unrepresentative DO concentrations Personnel Skill Level Electrical power connections must be carried out and commissioned by electrically competent authorised personnel who are fully conversant in the requirements of the intended installation Instrumentation staff having at least technician status should carry out the remaining installation Test Equipment and Tools WARNING High voltage insulation test equipment e g Megger tester MUST NOT BE USED on the AZTEC DO or DO MLSS Systems severe damage may result and
15. directives of the European Union and is CE marked to indicate this Temperature 01050 Degrees DO 0 130 Saturation 0 10 mg l These are default values Both are user re configurable Measurement Principles Dissolved Oxygen Clark Type cell or Makareth cell Temperature Better than 0 1 Deg C Dissolved Oxygen Better than 1 Saturation 4 20 mA into 1000 ohms Four parameters configurable Connection via minimum of twisted pair individually screened overall screened cable Four user configurable Each channel comprising single pole changeover Digital outputs SPCO volt free contact rated at 1A 250Vac with internal VDR suppressers fitted LED indication of each relay output provided RS232 or as an option RS422 available Connection via Serial Communications minimum of 3 twisted pair individually screened overall screened cable Local Display LCD two line 40 character alphanumeric Compliance Instrument parameter Ranges Accuracy Analogue Outputs Local Keypad Numeric membrane type 15 AZTEC SERIES 5000 DO DO MLSS Installation 4 Commisioning Manual SEVERN TRENT 16 Dimensions Enclosures Air Supply Main panel vertical on handrails or site specific frame Probe assembly A stainless steel handrail bracket supports 2 5 Metre long pole made from 172 nominal ABS Class pressure pipe 48mm OD x 6 35mm wall thickness This pole has an undercut 174 Brit
16. electronics module or the local control box as appropriate The connection is by means of a pre wired multi pole connector Ihe plug merely needs inserting into its mating socket and the retaining ring tightening up to prevent moisture ingress Pneumatics Connections Connect the three pneumatic tubes between the Main System Assembly and the DO Probe Assembly These are normally colour coded red blue and green Connection is achieved using push fit connectors Please refer to the details given in Section 3 5 and Section 4 Technical Specification Pneumatic through connectors are provided to allow ease of connection and disconnection of the DO probe pneumatic lines from the Main System Assembly If a local control box is to be installed an extra push fit connector may be fitted to the bottom of the front panel interface box see section 5 7 2 This is used to provide an air supply to the local control box The air line should be 6mm nylon tube to BS5409 standard colour black Alternatively site air may be used to supply the system independently AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Section Spacing Page 52 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES COMMISSIONING PROCEDURE 6 6 1 53 Pre commissioning checks Following installation the AZTEC DO System should be visually inspected for signs of mecha
17. Design In the basic DO System there are two physically separate connected assemblies the Main System Assembly and the DO Probe Assembly In addition to this where requested a DO Local Control Box LCB can be supplied One DO Local Control Box is supplied as standard for a double DO probe system for distributing compressed air to the additional DO probe assembly It enables the user to test the function of an additional DO Probe Assembly local to the extra probe rather than at the main panel Main panel and 1 probe Figure 1 Typical arrangement of an AZTEC double DO System 9 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 3 4 3 5 10 Main System Assembly When so ordered the Main System Assembly is normally despatched as a pre assembled unit and consists of 1 Main backboard with Unistrut channel and pre wired isolator 2 Electronics Module solenoid valves and optional compressor DO Probe Assembly The DO Probe Assembly is normally despatched in a kit form with separate assembly instructions The DO cell is a fragile device and should be fitted during installation commissioning There may be more than one DO Probe Assembly i e a double DO system controlled by the Main System Assembly The DO Probe Assembly consists of 1 Mounting bracket Optional 2 Support pole Optional 3 Wet end assembly fixed to end of support pole DO Local Contr
18. E OF FIGURES Figure 1 Typical arrangement of an AZTEC double DO System eee nennen 9 Figure 2 System Dimensions with optional mounting panel units in millimetres 17 Figure 3 System Dimensions with optional mounting panel amp integral compressor units in millimetres 18 Figure 4 Main electronics panel without integral compressor esee eene eene nennen enne 21 Figure 5 Main electronics module with integral compressor amp optional mounting panel 22 Figure 6 Local Control box Front view showing buttons a 23 Figure 7 Local control box view of base showing connectors 23 Figure 8 Diagram showing the local control box mounting arrangement 24 Figure 9 Drawing showing installations of the floating ball and fixed shroud wet end DO assemblies 25 Figure 10 Drawing of a mounting bracket demonstrating the pivoting action by showing the pole in two positions 26 Figure 11 Diagram of Makareth DO Wet End Assembly nenne nenne nnne 20 Figure 12 Makaretb cell and storage holder u uuu uu uu in Rx RUP RUE 32 Figure 13
19. ERN TRENT SERVICES Blank spacer page AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Version 1 0 04 5003 B Version 1 1 04 5003 C Version 1 2 04 5003 D REVISION HISTORY First Issue MADOS V version 1 00 May 2003 New photographs D G Downie Installation notes added for systems purchased without pre wired isolator Mounting pole details added New blanking plugs fitted to pneumatics for shipping storage Spelling corrections AZTEC SERIES 5000 DO DO MLSS Installation 4 Commisioning Manual SEVERN TRENT SERVICES Blank spacer page IV AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES TABLE OF CONTENTS 1 INIRODUC HON e cer 1 1 1 SU p Ou 1 1 2 NW iui 1 1 3 CD PATON CE ria iti 1 1 4 Usine this NA Lu u u uuu I 2 SAFETY PROCEDURES u ee en ee ner eer ee er eer rrr err 3 3 DESIGN 9 3 1 General DEO Mcsa iaia 9 3 2 Assem DI 10 3 3 DO Prope 10 3 4 DO Control Box EC B 10 3 5 Pueumane C onec HOS uuu 10 3 6 Operational Principles uuu uu
20. ERN TRENT SERVICES Three colour coded cable from probe assembly pneumatic tubes to DO Wet End assembly 41 Wiring Details Power Connections The operating voltage of the AZTEC DO System is readily confirmed from the label attached to the equipment and will normally be either 110 Volt AC or 230 Volt AC To allow for correct labelling during manufacture and selection of the appropriate compressor option if required the operating voltage must be stated at the time of order The power supply must comply with the following requirements 115 or 230Va c 50 60 Hz 10 The main incoming power supply cable is terminated as indicated It is recommended that the incoming power supply cable is armoured and should be glanded using first quality brass glands fitted with locknuts earth tag and PVC over shroud Final cable termination is at the terminal provided at the isolator feed side Pre wired Back Panel No Pre wired Back Panel Plug in connection for signal Power supply cable in here Base of electronics module Figure 18 Main System Assembly showing external connections AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Mains line isolator Isolator With cover removed Live Earth Ground Neutral Isolator Off With cover fitted Figure 19 Diagram showing mains line power connectors 42 AZTEC SERIES 5000 DO DO MLSS Insta
21. MAINS IN Main I O LCB Terminal Terminal Function SSR Compressor supply control i SSR T11 Compressor supply control 2 terminal ci wiring to 5 SR integral compressor Function Head 1 Calib request 24V Head 1 Calib request OV Head 2 Calib request 24V Head 2 Calib request OV Terminal Dig in 0 Dig in 0 Dig in 1 Dig in 1 SEVERN TRENT SERVICES Pneumatic solenoid DO head in valves amplifier AIR SUPPLY UP DOWN AERATE Ep Non return valve Sensor Signal cable connector screen clam i UP DOWN AERATE 77 Green Red Blue from main assembly Multifunction LCB E terminal Terminal Function TB1 1B T10 Digital supply common TB1 5A T9 Aerate TB1 6A T7 Down 1 7 T8 Up TB1 8A T12 LCB Buttons enable CN4 ve T1 Head amp supply 15V CN4 0V T2 Head amp supply OV CN4 ve T3 Head amp supply 15V 2 CN5 SigA T4 DO signal 728 CN5 Sig T5 Signal common Pu CN5 SigB T6 Temperature signal a 5 Sig OV z Motherboard Main T11 Compressor on I O terminal SSR 50 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Cable screen clamp Figure 24 Signal cable s screen termination detail e Signal cable screens must be clamped using the fitting supplied 5 7 3 Sensor cable connection 5 8 51 The sensor cable connections are made into the main
22. RN TRENT SERVICES 3 7 2 3 7 3 13 Local PC Access Serial Communications An RS232 serial port is available A connector socket is provided for local PC access or other suitable ASCII terminal connection More information on serial communications connection may be found in Section 9 Serial Communications Both stored fifteen minute averages and detailed area can be recovered from the processor onto a PC using a specially designed software suite and the resultant data can be displayed and manipulated in a in a variety of ways In addition it is possible to access the main control program to interrogate the instrument to determine its current operating settings or to make modifications For further information please request literature on the PC Software suite under separate cover Remote PC Access Exactly the same features outlined in the previous section are available remotely provided an error correcting modem is connected to the serial communications connections and the modem is linked to the PNTN network Remote communications via PC modem and PSTN AZTEC SERIES 5000 DO DO MLSS Installation 4 Commisioning Manual SEVERN TRENT SERVICES Section spacer page 14 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 4 DO TECHNICAL SPECIFICATION Table 1 General Specification for the AZTEC Dissolved Oxygen System The unit complies with all relevant
23. RVICES 46 Spacer page AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Figure 22 5 7 3 ii Terminal designations for single DO with a Local Control Box shown overleaf 5 es es es PAL OGUE ANAL OGUE ANALO TU A OUT 1 OUT 2 Terminal Function Analogue Output 0 Analogue Output 1 ve Analogue Output 0 Analogue Output 1 ve sd Punesen Comments Analogue Output 1 Analogue Output 2 ve RLO NC Alarm 1 normally closed Volt free contacts An 1 i 5 4 di nd RLOCOM Alarm 1 common Volt free contacts si 11227 RLO NO Alarm 1 normally open Volt free contacts i cin 3 And ee Oi hai 4 RL1NC Alarm 2 normally closed Volt free contacts RL1COM Alarm 2 common Volt free contacts RL1 NO Alarm 2 normally open Volt free contacts RL2 NC Alarm 3 normally closed Volt free contacts RL2 COM Alarm 3 common Volt free contacts RL2 NO Alarm 3 normally open Volt free contacts RL3 NC Alarm 4 normally closed Volt free contacts RL3 COM Alarm 4 common Volt free contacts Terminal Function RL3 NO Alarm 4 normally open Volt free contacts 3 Mainsin E Mains Line supply Earth Voc s i Mains Mains Line supply Neutral Mains in L Mains Line supply Live Ma
24. SERVICES 5 5 8 35 Securing the pneumatic blue tube and the sensor cable Loop the sensor cable and blue pneumatic tubes to the top of the pole using a cable tie see Figure 11 Diagram of Makareth DO Wet End Assembly This will prevent any unnecessary stress on the cable and tube Air Supply Two air supply options are available i A self contained compressor unit ii Site air supply For option i no further tube connections are necessary as the instrument is pre assembled and tested For option ii a local site dry air supply rated at 2 0 bar should be used AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT 77 5003 07 5006 2 2 CA l eno 6 5002 6 5003 NI 2 0 Figure 15 Diagram of Clark cell DO Wet End Assembly Optional Extras 36 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 6 1 5 6 2 5 6 3 37 Assembly of Clark DO wet end The wet end assembly is supplied in a kit form and consists of e Aplastic ABS pole and swept bend optional A pneumatic cylinder and two black moulded O rings to fit in the piston rod end faces A sensor extension tube A sensor head and cable connector A Clark DO cell packaged and retaining ring key A calibration cleaning shroud ball Assembly instructions Pneumatic tubing optional Assembly of the wet end should be carri
25. SEVERN TRENT AZTEC SERIES 5000 SINGLE AND DOUBLE DISSOLVED OXYGEN DO SYSTEMS amp COMBINED DO and MIXED LIQUOR SUSPENDED SOLIDS DO MLSS SYSTEM INSTALLATION amp COMMISSIONING MANUAL Part No 04 5003 D Issue December 2004 223 6100 6 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERIN TRENT SERVICES These instructions describe the installation operation and maintenance of the subject equipment Failure to strictly follow these instructions can lead to an equipment rupture that may cause significant property damage severe personal injury and even death If you do not understand these instructions please call Severn Trent Water Purification for clarification before commencing any work at 215 997 4000 and ask for a Field Service Manager Severn Trent Water Purification Inc reserves the rights to make engineering refinements that may not be described herein It is the responsibility of the installer to contact Severn Trent Water Purification Inc for information that cannot be answered specifically by these instructions Any customer request to alter or reduce the design safeguards incorporated into Severn Trent Water Purification equipment is conditioned on the customer absolving Severn Trent Water Purification from any consequences of such a decision Severn Trent Water Purification has developed the recommended installation operating and maintenance procedures with careful attenti
26. UEDE 41 PON T T PN 55 Pre commissioning Ch 53 21 R Lo qI uuu nen 19 S SAFETY PROCEDURE E 3 I Sealing the pole Makarethi Wel CAG x uuu uuu uu uu az asa 34 SC ii Gi AI ux munanan UM T IU IS 51 CIC 30 37 Serial Communications nenne ense ssssseskn 12 Soda SUID ORA 4 63 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES SODIUM SULPHITE SOLUTION 5 SOFTWARE LICENCE AGREEMENIT 61 10110 0 03 EM OL 28 SO O 44 T CIN V TABLE OFEN URE vii TECHNIK 15 eo oe a 1421919 20 LC IRE 11 Types DO Wet ad ASSeHIDDIV lil 28 U IB ua MT 1 W osos dvds QNEM MAA MGENI NA MANE M DU CM UN 56 WARRANTY 60 bb
27. VDC with respect to the system OV and each digital output is individually held to OV when the output is active THIS SHOULD BE TAKEN INTO ACCOUNT WHEN SPECIFYING ANY ANCILLARY EQUIPMENT TO BE ATTACHED TO THIS INSTRUMENT NOT EXPLICITLY SPECIFIED IN THIS MANUAL 44 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Figure 21 olz AL HE n RL1 _ BE Main Terminal RLO NC RLO COM RLO NO RL1 NC RL1 COM RL1 NO RL2 NC RL2 COM RL2 NO RL3 NC RL3 COM RL3 NO ASST 71 5028 Alarm Alarm Alarm Alarm Alarm Alarm Alarm Alarm Alarm Alarm Alarm Alarm Function 1 normally closed 1 common 1 normally open 2 normally closed 2 common 2 normally open 3 normally closed 3 common 3 normally open 4 normally closed 4 common 4 normally open Comments Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Comms I O Terminal CN1 Tx CN1 Tx CN1 Rx CN1 Rx CN1 OV CN2 Tx CN2 Tx CN2 Rx CN2 Rx CN2 0V Function RS422 transmit ve RS422 transmit ve RS422 receive ve RS422 receive ve RS422 signal grnd RS422 transmit ve RS422 transmit ve RS422 receive ve RS422 receive ve RS422 signal grnd
28. VERN TRENT SERVICES 5 4 Main Probe Assembly Installation 5 4 1 General Description When so ordered the DO Probe Assembly will consist of the following options a Mounting bracket b Support Pole C Wet end assembly fixed to the end of the support pole Mounting bracket Handrailing Pneumatic Cylinder lt Floating S wet end PROCESS XS LIQUOR x D O cell Fixed Calibration Shroud Figure 9 Drawing showing installations of the floating ball and fixed shroud wet end DO assemblies 25 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 4 2 Mounting Bracket 26 The optional mounting bracket shown below is suitable for direct mounting to handrail horizontal members of diameters up to 45mm The static parts are manufactured from stainless or galvanised steel and require no maintenance lt Pole bracket gt Pole Hinged locking cam Pin Handrailing Handrail clamping bolt Figure 10 Drawing of a mounting bracket demonstrating the pivoting action by showing the pole in two positions Mounting The optional bracket described and shown above allows the probe assembly to be secured to a handrail by means of an extension pole Handrail strength must be sufficient for both the original purpose and the additional loading imposed by the DO Probe Assembly If the probe is not to be mounted on a handrail please seek a
29. ation shroud ball 40 5 6 6 Connecting the pneumatic OCS ues coe uuu a ctl eti qn 40 5 6 7 AAI Dp 40 5 6 8 Fitime he plastic 90 Den u uu uu unos ______ ___ _ 40 5 7 Marino DIC i uu 41 S MON PON C OMS CHO 0S E asas atus 41 5 7 2 Main System Assembly and Local Control Box interconnections 43 IT Cable CODE 6 o ER 5 5 8 M S1 COMMISSIONING PROCEDURE 53 6 1 Pr commisstonime lecES Aaa 53 6 2 os t AA 55 DO APPENDIX A CERTIFICATE OF CONFORMITY 59 DO APPENDIX B WARRANTY EXCLUSIONS 60 DO APPENDIX D SOFTWARE LICENCE AGREEMENTT L 61 INDE AA EEEE u 62 SEVERN TRENT SERVICES INTERNATIONAL OFFICES 65 vi AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES TABL
30. clock has been set and if set incorrectly will log data against the wrong data or time The software will check the entered date and time and will reject any attempt to enter an illegal date and or time When the instrument has completed its calibrations it should display either one or two signs on the right hand side of the display depending on how many sensors it has This will indicate that the calibration has been successful Please note that until this procedure has been completed any alarm signals or analogue output signals will be invalid and data will not be logged correctly It is important therefore that any controls affected by alarm or analogue output signals are disabled until the initial calibration cycle has completed successfully 557 The AZTEC DO oystem is now basically operational but will probably need further configuration to tailor it to individual requirements and preferences AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT 58 SERVICES It is now time to configure the analogue and alarm outputs to tailor them to suit individual requirements This is done by the outputs setup menu accessed by default by keying in 8888 on the keypad Details of the procedure are given in section 8 If you wish to enter corrections for altitude depth of immersion salinity or barometric pressure please refer to sections 8 8 through to 8 11 AZTEC SERIES 5000 DO DO MLSS
31. connection diagrams Figure 6 Local Control box Front view showing buttons Figure 7 Local control box view of base showing connectors Figure 18 Main System Assembly showing external connections The colour coded pneumatic tubes are fitted into the push fit connectors as shown in Figure 11 Diagram of Makareth DO Wet End Assembly after first removing the blanking plugs Red moves the sensor into the process Green moves the sensor into the shroud Blue aerates probe for calibration The green and red tubes must be fitted so that there is sufficient slack to allow free movement of the pneumatic cylinder Sealing the pole Makareth wet end only The probe must be sealed in order that the calibration air will reach the sensor The calibration must pressurise the pole to the same pressure as that exerted by the hydrostatic head at the depth of immersion in order to displace the process liquor and calibrate the sensor Any leaks will prevent calibration from taking place Sealing is achieved using a split collet around the cable as follows Apply a liberal coat of silicone rubber to the collet to maintain an effective seal Secure the collet using the clamping ring on top of the pole Wipe away excess silicone rubber Signal cable Split collet Push fit connector Figure 14 Diagram of split collet for Makareth wet end AZTEC SERIES 5000 DO DO MLSS Installation 4 Commisioning Manual SEVERN TRENT
32. d an authorized officer of STS When you accept delivery it is an act whereby you agree to be bound by this mutual agreement between you and STS 61 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT Index A PR CSS Di cess RI eee 12 ana 35 40 RO 57 analogue output sienals 57 Assembly of Clarke D O WO EEEE an 37 Assembly of Makareth DO Wet End M 30 C Calibration and cleaning mode 11 TAO a at alam 9 3 IERI TRIER 40 CERTIFICATE OF CONFORMITY cccccsccsccccccscccsccesccsccscecccescsescesceescesccescescseseuscsesseesees 59 C ___ _ _______ _ ____ 55 ES IU 55 COMMISSIONING PROCEDURE ne erm nnnm ne nne ne reete ese peret estia rte iene 53 controller 44 D D O ELECTRODE STORAGE SOLUTION remettre retenir nan 5 DO ar sa gt RT III 10 DO PIO Assemblea 9 nici 9 F Ji The OCS 39 bieb EDO 31 Front Panel
33. dvice from Severn Trent Services Bracket installation will require the use of a 17mm A F deep socket wrench spanner To ensure correct operation of the hinged locking cams they must move freely without sticking or binding Adjustment of the M6 securing nuts may be necessary AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 2 The bracket is fitted using two V bolts around the handrail section The orientation is important The bracket mounts with the hinged locking cams on the top site of the bracket nearest to the installer This is to ensure that the two pins on the pole bracket will drop into the slots and slide under gravity The locking cams prevent the pins moving back up the slots and disengaging from the bracket For systems using a pole and shroud rather than a floating ball the bracket will need to be rotated on the handrail to ensure that the pole of the wet end is supported at an appropriate angle For floating ball installations the bracket should be rotated such that the pole can move up and down with the ball movement without fouling on the fixed part of the bracket Attitude Installation and location of the bracket and support pole must ensure free vertical movement of the support arm as previously mentioned The length of the support pole plus the point of bracket fixture must ensure that a The vertical axis of the wet end assembly is 20 to 30 degrees
34. e damage and replace it if necessary WARNING The Makareth cell is like a battery slowly running down as it measures oxygen It is supplied stored in an oxygen absorbing solution and should be kept in the solution when not in use This is a 3 10 w v solution of sodium sulphite in water Although only small quantities are involved this is a potentially hazardous chemical and must be handled appropriately Please refer to the example MSDS in Part 2 Safety for further information 31 The cell needs to be removed from the storage holder and attached to the DO sensor head on the wet end as follows AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT i Removing the Makareth DO cell from its holder e Unscrew the end cap of the cell storage holder taking care not to spill the solution inside End cap e Take care not to allow contact between the holder and the DO cell e Hold the end cap in one hand and unscrew nos the knurled nut e Whilst holding the end cap in one hand grasp D O cell the cell with the other hand and firmly pull it away nim na from the end cap emm knurled nut e Place the cell on a smooth surface e Unscrew the rod protruding from the end cap cell storage e Screw the end cap back on the storage holder and holder put it in a safe place in case you need to return the cell for refurbishment Figure 12 Makareth cell and storage holder ii Fitting the Maka
35. eads this manual prior to installation To achieve successful operation the correct installation and location of the AZTEC DO System is vital Incorrect installation may result in premature life expiry of the DO Probe Assembly components and unrepresentative DO data may be obtained It is important that no short cuts are taken Analogue signal and data communications conductors must be segregated from each other by screening and from cables operating at different voltage classifications This specifically relates to the cabling from the DO Probe Assembly cabling from the Main System Assembly and any other plant cabling in the vicinity of the AZTEC DO System Reference should be made to the Electricity Supply Regulations the current Edition of the IEE Wiring Regulations and supporting documents ERA BSI and ISO standards publications Owing to the site specific nature of process liquors it is beyond the scope of this document to detail exact sensor location within a process area SEVERN TRENT SERVICES offer to provide customer support where site specific advice is needed Alternatively SEVERN TRENT SERVICES is able to provide an installation service In spite of these uncertainties a number of general installation rules should be considered as detailed below Recommended Locations The installer must ensure that the AZTEC DO System assemblies are located to provide safe and easy access for the users and maintainers of the system
36. ed out as per the kits enclosed assembly instructions which are summarised below and overleaf Fitting the pneumatic cylinder to the plastic ABS pole Remove the cylinder from the protective bag Screw it onto the thread on the pole ensuring that the seal is in place in the groove of the piston rod and that the white threaded ring is furthest from the pole and that the push fit fittings are in place SF Use firm hand tight force DO NOT USE TOOLS Fitting the sensor extension to the pole assembly Remove the DO sensor extension tube from the fitting pack Keep the cable ties for later use Remove the thread protection cap Ensure that the second black seal is in place Fit the extension rube into the cylinder previously fitted to pole ensuring that the threads are not crossed and the O ring makes the correct seal a Use firm hand tight force DO NOT USE TOOLS Fitting the sensor head and cable to the sensor extension The sensor head is a plastic component fitted with a multi pin plug for connecting to the 5 metre long extension cable Lubricate the O rings with silicone grease Feed the cable up the pole ensuring that it does not become twisted with the blue pneumatic tube inside the pole Connect the blue pneumatic line from inside the pole to the push fit connector on the sensor head see section 3 5 for instructions AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES on these c
37. ents may be made without notice Represented By S E V E R N TRENT SERVICES Severn Trent Services 3000 Advance Lane Colmar PA 18915 Tel 215 997 4000 e Fax 215 997 4062 Web www severntrentservices com E mail marketing severntrentservices com UNITED KINGDOM e UNITED STATES e HONG KONG ITALY e MALAYSIA Copyright 2005 Severn Trent Services 05 05 65 AZTEC SERIES 5000 DO DO MLSS Installation 8 Commisioning Manual v5 0 DATE
38. from true vertical to prevent air pockets developing near the DO sensor which can result in false measurements being made b The base of a wet end assembly is in full contact with the process liquor and is submerged 200mm Please contact Severn Trent Services for advice on other depths of immersion for instance complete immersion of the cylinder and shroud for local environmental reasons Minor changes to support pole length are made by adjusting the clamping position of the bracket on the support arm Care should be taken that such adjustments do not result in restriction of walkway access For the DO Makareth type wet end assembly the support pole is maintained at a static pressure of 200mm of Water dependant on immersion depth and must not be cut after installation Pressure seal integrity may be affected if the length of the support arm is changed by unauthorised means This would compromise calibrations AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 4 3 28 Support Pole The wet end assembly support pole normally consists of one straight length of ABS pipe and ABS pipe fittings The length of the straight pipe is often tailored to suit local requirements established at time of order To avoid excessive flexing of the support pole it is recommended that the straight pipe length should not exceed 3 0 metres Types of DO wet end Assembly The DO wet end assembly will be
39. g Manual SEVERN TRENT SERVICES h 1 3 1 4 INTRODUCTION Scope This manual describes the installation and commissioning of the Aztec Series 5000 Dissolved Oxygen DO System with or without additional MLSS measurement It should be read and understood before the equipment is placed into service The larger User Manual part number 04 5002 is included on the CD supplied with the instrument and includes additional information to enable safe and continuing operation of the equipment Important Notices 1 SEVERN TRENT SERVICES reserve the right to make engineering refinements to the equipment that may not be described herein Any questions that cannot be answered specifically by these instructions should be addressed to SEVERN TRENT SERVICES or their agents for response 2 SEVERN TRENT SERVICES will not accept responsibility for any equipment supplied or the actions of such equipment or associated system when the customer has made a modification that is considered by SEVERN TRENT SERVICES to be detrimental to the operation of the equipment Intended Audience This manual is for reference by design engineering staff and installation amp commissioning engineers responsible for deploying the equipment Using this Manual This manual contains six chapters These six chapters comprise this ntroduction and five others Safety Procedures outlines steps that should be taken to ensure safe use of the equipment This
40. her purpose other than described in this manual Only suitably qualified personnel should carry out work on this equipment Disconnect power to the apparatus prior to making any terminal connections within the electronics enclosures Note Alarm outputs if used are externally powered and could be carrying mains line voltage The instrument s mains power isolator does NOT isolate these circuits In these circumstances the installer should provide a separate means of isolation and supplementary warning labels Do not operate the equipment with the electronics enclosure open Operation without the protective covers may present an electric shock hazard Use all practical safety precautions to prevent contact with energised parts of the equipment and related circuits Use the recommended connection procedures described in the installation section Only suitably qualified personnel should perform installation When in use compressors valves and pneumatic cylinders may all stop and start automatically Suitable caution should therefore be exercised when working on the unit If carrying out maintenance work on the DO sensors entering the maintenance 9999 menu should disable the automatic mode AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 10 DO NOT under any circumstances insert fingers into the space between the sensor and shroud 11 The DO system is designed to o
41. in I O LCB Terminal Terminal Function Multifunction LCB I O terminal Terminal Function SSR N C Compr supply control TB1 1B T10 Digital supply common SSR 111 Compr supply control 1 5 T9 Aerate 1 6A T7 Down TB1 7A T8 Up 1 8A T12 LCB Buttons enable Shares terminal with wiring to integral compressor Comms I O Function Terminal CN1 Tx RS422 transmit ve CN1 Tx RS422 transmit ve CN1 Rx RS422 receive ve CN1 Rx RS422 receive ve CN1 OV RS422 signal grnd CN2 Tx RS422 transmit ve CN2 Tx RS422 transmit ve CN2 Rx RS422 receive ve CN2 Rx RS422 receive ve CN2 OV RS422 signal grnd Shonen oo CN4 ve T1 Head amp supply 15V CN4 0V T2 Head amp supply OV CN4 ve T3 Head amp supply 15V Terminal Function Dig in 0 Calib request 24V Dig in 0 Calib request OV Dig in 1 Uncommitted Dig in 1 Uncommitted CN5 SigA T4 DO signal CN5 Sig OV T5 Signal common CN5 SigB T6 Temperature signal CN5 Sig OV No connection 47 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES DO head amplifier Sensor connector 48 Multifunction I O terminal TB1 1B 1 5 1 6 1 7 1 8A ve CN4 0V CNA ve CN5 SigA CN5 Sig 0V CN5 SigB CN5 Sig LCB Terminal Function T10 Digital supply common T9
42. in its memory that you wish to keep In that case the following procedure should be adopted Press 9999 i e 9 four times in succession A safety message will be displayed Press YES followed by ENT Press YES If the instrument is a double DO you will be asked to select the sensor head On a double DO instrument head 1 is by the main panel head 2 is by the Local Control Box Press 1 followed by ENT AZTEC SERIES 5000 DO DO MLSS Installation 8 Commisioning Manual SEVERN TRENT SERVICES 57 Now press DEL The following screen will be displayed Press 1 followed by ENT Press YES Now press 2 followed by ENT Press YES followed by DEL If the instrument is a single DO then press YES if the instrument is a double DO then press NO and you will be returned to the screen asking you to select a sensor head This time press 2 followed by ENT and repeat the above sequence then when asked to resume normal operation press YES The above procedure will ensure that the instrument recognises that it has a new cartridge or cartridges if double DO and will automatically carry out calibrations on the head or heads if double DO Even on warm starts one should check that the clock has been set correctly by carrying out the clock set procedures as previously described The instrument will not log data until the
43. in place E Use firm hand tight force DO NOT USE TOOLS 5 5 2 Fitting the sensor extension to the pole assembly Remove the DO Sensor extension tube from the fitting pack Keep the cable ties for later use Remove the thread protection cap Ensure that the second black seal is in place Fit the extension tube into the cylinder previously fitted to the pole ensuring that the threads are not crossed and the O ring makes the correct seal E Use firm hand tight force DO NOT USE TOOLS 30 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 5 3 Fitting the sensor head and cable to the sensor extension Before proceeding it is necessary to remove the split collet at the top of the pole by unscrewing the clamping ring and removing the two halves Put the collet in a safe place and refit the clamping ring The sensor head is a black plastic component attached to 5 meters of cable fitted with a multi pin plug Feed the cable up the pole until the sensor head engages with the sensor extension The sensor head should be secured using the two M3 grub screws in the side of the extension Fitting the Makareth DO Cell The Makareth DO cell is supplied in a cell storage holder that contains a solution of sodium sulphite This ensures that the membrane remains wet and in good condition The membrane is delicate and may be damaged by careless use Inspect the electrode for signs of membran
44. ish Standard Pipe Parallel thread BSPP 11 TPI Whitworth thread form machined one end The shoulder formed by the undercut is a sealing surface utilised by the square section O ring in the end face of the cylinder rod THIS ARRANGEMENT MUST NOT BE SUBSTITUTED All threaded fasteners ISO metric stainless steel Height Width Depth Without compressor 880mm 400mm 269mm With compressor 880mm 800mm 269mm Weight approximately 27Kg Pole assembly Normal Length 2 5m Extended pole 3 5m or 5m GRP IP67 and NEMA 4X Pressure nominal 2 bar max Must be fed through a regulator Flow at atmospheric pressure 1 L s maximum Connection 6 mm push fit to take nylon tube Air Quality Instrument quality Compressor normally provided AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN 175 6 890 TRENT 400 15 748 lt 300 11 811 50 1 968 SERVICES NOTES 1 AIR CONNECTIONS TO WET END ARE COLOUR CODED 2 ELECTRICAL CONNECTIONS TO LOCAL WET END ARE BY MULTIWAY PLUG SOCKET 3 ELECTRICAL CONNECTIONS TO REMOTE CONTROL UNIT ARE MADE ON 12 CORE CABLE FROM CONTROL PANEL ASSEMBLY CABLE AND GLANDING SUPPLIED BY OTHERS 4 ENCLOSURE PROTECTION TO IP67 5 POSITION CLIPS TO SUIT HANDRAIL SPACING 880 34 645 PROCESSOR TRANSMITTER ADJUSTABLE UNISTRUT CLAMP SENSOR CONNECTOR 5 PLUG PNEUMATIC IN HEIGHT TO SUIT
45. lated materials delivered with this AGREEMENT PRODUCT STS retains the copyright protection of PRODUCT Under copyright laws you agree not to transfer PRODUCT in any form to any party without prior written consent of STS Further you agree that copies of PRODUCT shall be made only for backup and archival purposes You must retain all such archival copies in your possession and reproduce the copyright notice from the original disks if provided on all such copies Except as provided in this AGREEMENT you may not transfer sub license lease or rent time share or lend PRODUCT your copies or the related materials or any of your rights under this AGREEMENT except by prior written consent from STS You may not alter decompile reverse engineer disassemble or reverse translate or in any other way derive any source code from PRODUCT You may not remove or obscure STS s copyright and trademark notices in either hardcopy or machine readable portions of PRODUCT STS warrants the physical media on which PRODUCT is distributed to be free from defects in material and workmanship and shall replace any such media free of charge for twelve months from date of delivery The invalidity or unenforceability of any provisions of this AGREEMENT shall not affect the remaining provisions hereof This is the only agreement between you and STS relating to software or firmware It cannot and shall not be modified unless in writing and signed both by you an
46. llation amp Commisioning Manual SEVERN IRENI SERVICES 5 7 2 Main System Assembly and Local Control Box interconnections This sub section applies to double units and single with a remote probe with a LCB Control Signal cable Pneumatic tube black Figure 20 Diagram showing control signal cable between Main System Assembly and Local Control Box Electrical There are no mains supply connectors for the local control box The signals from the sensor are connected via a pre wired multi way plug and socket The link between the electronics module and the Local Control Box requires a 12 core screened cable connected to the terminals and the screen itself connected to the chassis plate 43 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES The cable recommended for the control signal cable is 16 0 2 mm 0 5mm 12 core with overall tinned copper braided sheath and PVC outer R S Components PLC part Number 367 757 alternatively Belden Type 9261 12 core cable or equivalent See section 5 7 3 for details of the terminal connections IMPORTANT NOTE The digital I O is powered internally by the instrument It has been observed that some Consulting Engineers have specified surge arrestors in the cabling associated with the Local Control Box The power supply design of these instruments is such that the Common digital 1 0 supply line is NEGATIVE or MINUS 24
47. mbrane Ensure that the O ring seal is against the pneumatic cylinder and tighten the clamping ring by hand SF Use firm hand tight force Do not use tools In order to protect the Clark DO cell when handling the probe push the pneumatic cylinder down by hand so that the sensor is inside the calibration shroud Connecting the pneumatic tubes Please refer to the pneumatic connection diagrams on pages 18 29 and 36 The colour coded pneumatic tubes are fitted into the push fit connectors as shown in the diagram after first removing the blanking plugs Red Moves the sensor into the process Green Moves the sensor into the shroud Blue Aerates probe for calibration The green and red tubes must be fitted so that there is sufficient slack to allow free movement of the pneumatic cylinder Air Supply Two air supply options are available i Self contained compressor unit ii Site air supply For option i no further tube connections are necessary as the instrument is pre assembled and tested For option ii a local site dry air supply rated 2 0 bar should be used Fitting the plastic 90 Bend The 90 bend should now be fitted Remove the bend from the fitting kit Thread the blue pneumatic tube and signal cable through the bend and push the bend onto the pole ensuring that when the pole is fitted the bend faces down for weather protection AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEV
48. ng 15 minute average data including DO in saturation and mg l temperature and various other useful internally generated parameters In addition it stores detailed information every time it carries out a calibration thus enabling rapid and easy interpretation of its condition The instrument has three operating modes a Normal measuring mode b Calibration and cleaning mode C Manual intervention mode For the majority of the time the instrument operates in normal operating mode during which time the sensor either Clark or Makareth responds to aqueous DO concentrations by producing a current microamperes that is proportional to the DO concentration The current is fed into a DO head amplifier thus generating a voltage 0 to 5 Volts proportional to DO which is then registered in the electronics module via an analogue input channel A thermistor in the sensor head also responds to the liquor temperature The temperature thus recorded is used to convert the percentage saturation readings into mg l The calibration and cleaning modes are initialled either automatically at user settable intervals or manually via the front keypad AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 3 7 3 7 1 12 Cleaning of the sensor is achieved by means of a pneumatically actuated cylinder which pushes a shroud down over the sensor head There is an annular brush housed in the end of the sh
49. nical damage incurred during installation Where damage is found Severn Trent Services should be notified for advice on whether to proceed with the commissioning phase The following pre commission checks must be carried out BEFORE the local isolator is placed in the ON position Check and correct as necessary a The mounting of the Main System Assembly is sound b The power supply rating of AZTEC DO System is the same as the power supply provided C Power supply terminations are secure safe and in good condition d Supplementary and equipotential bonding conductors are securely terminated and in good condition e Protective shrouding and covers are secured in place and in good condition f All fuses are sound of the correct rating and in place See table or diagrams on the following page g The DO cell is fitted to the DO Probe Assembly before it is immersed in the tank h The signal cable from the DO Probe Assembly is connected into the Main oystem Assembly The three pneumatic tubes from the DO Probe Assembly are connected to the corresponding pneumatic lines from the Main System Assembly If a Local Control Box is included ensure that the air supply is connected to the black connector This may be from the Main System Assembly if it contains its own compressor or from a site air supply k The positions of the DIP DIL switches on the Proteus module in the main electronics enclosure at the top right of the PCBs
50. ntacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Volt free contacts Function RS422 transmit ve RS422 transmit ve RS422 receive ve RS422 receive ve RS422 signal grnd RS422 transmit ve RS422 transmit ve RS422 receive ve RS422 receive ve RS422 signal grnd AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual Multifunction I O terminal TB1 1B 1 5 1 6A TB1 7 1 8 fp a TOY XS CN4 ve CN4 0V CN4 ve CN5 SigA CN5 Sig CN5 SigB CN5 Sig LCB Terminal Function Digital supply common Aerate Down Up LCB Buttons enable Head amp supply 15V Head amp supply OV Head amp supply 15V DO signal Signal common Temperature signal No connection Terminal Analogue Output 0 Analogue Output 0 Analogue Output 1 Analogue Output 1 Analogue Output 2 Analogue Output 2 Analogue Output 3 Analogue Output 3 Function Analogue output 1 ve Analogue output 1 ve Analogue output 2 ve Analogue output 2 ve Analogue output 3 ve Analogue output 3 ve Analogue output 4 ve Analogue output 4 ve Terminal Function Mains in E Mains Line supply Earth Mains Line supply Neutral Mains in Mains Line supply Live
51. o set the clock will appear on the front panel Followed by Press 1 then 2 then 3 then 4 using the keypad on the front panel The following menu will be displayed Press 1 followed by ENT The following will be displayed Position the flashing cursor on the right hand side of the number to be changed The cursor is moved to the right by pressing YES and to the left by pressing NO Note In all AZTEC instruments the date is in the United Kingdom format DD MM YY and the time is in 24 hour format HH MM SS This format is hard coded into the instrument s software and cannot be changed 55 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 56 Press ENT Key in the Day the day number within the month Press ENT Move the cursor to the next value to be changed and repeat the above for the month year hours and minutes until all the date and time fields have been set Press DEL Press YES to update the clock Press YES to display the date and time on the LCD Press DEL to return to the main display The instrument will now automatically carry out an autocalibration Warm Start If the following message is shown on power up then the instrument has been powered up previously since leaving the factory and may have some appropriate sensor characteristics logged data and user settings stored
52. ol Box LCB This is normally despatched as a pre assembled unit with a mounting plate attached It provides all the interface hardware local to the sensor in addition to a facility to test the mechanical operation of the cleaning and calibration components during maintenance These three assemblies are described in more detail later Pneumatic Connections The pneumatic tubes which run between the assemblies are connected with 6mm push fit connectors Prior to shipping blanking plugs part No 25 5089 are fitted to the panel connectors and these should be removed immediately prior to commissioning It is recommended that the blanking plugs be re fitted if the Wet End is disconnected for extended periods Experience has shown that some insects use the open ends of the pneumatics to nest and consequential partial blockage results in erratic operation AZTEC SERIES 5000 DO DO MLSS Installation 4 Commisioning Manual SEVERN TRENT SERVICES 11 The push fit connectors retain the pneumatic tubes by means of a barbed collet which tightens onto the tube if any force is exerted that could otherwise pull the tube out When fitting each pneumatic tube ensure that it passes fully through the O ring in the push fit connector or serious malfunctions will occur Operational Principles The AZTEC DO system provides for the user a reliable self cleaning autocalibrating dissolved oxygen measuring system which is capable of stori
53. on to safety In addition to instruction operating manuals all instructions given on labels or attached tags should be followed Regardless of these efforts it is not possible to eliminate all hazards from the equipment or foresee every possible hazard that may occur It is the responsibility of the installer to ensure that the recommended installation instructions are followed It is the responsibility of the user to ensure that the recommended operating and maintenance instructions are followed Severn Trent Water Purification Inc cannot be responsible deviations from the recommended instructions that may result in a hazardous or unsafe condition Severn Trent Water Purification Inc cannot be responsible for the overall system design of which our equipment may be an integral part of or any unauthorized modifications to the equipment made by any party other that Severn Trent Water Purification Inc Severn Trent Water Purification Inc takes all reasonable precautions in packaging the equipment to prevent shipping damage Carefully inspect each item and report damages immediately to the shipping agent involved for equipment shipped F O B Colmar or to Severn Trent Water Purification for equipment shipped F O B Jobsite Do not install damaged equipment SEVERN TRENT SERVICES COLMAR OPERATIONS COLMAR PENNSYLVANIA USA IS ISO 9001 2000 CERTIFIED AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual v5 0 DATE SEV
54. one of two types e Makareth cell wet end assembly e Clark cell wet end assembly The installation of both types is described in detail beginning overleaf AZTEC SERIES 5000 DO DO MLSS Installation 8 Commisioning Manual SEVERN TRENT SERVICES x 6 YA M 9 41 4 78 5003 TH 5M Cable With Head No Sensor 6 26 5002 Tube Nyon Bue 2 8 26 5001 Tube Nyon Red 9 25 5028 Connector 6mm x 1 8 __ 24 0130 11 1 2 Socket Union Figure 11 Diagram of Makareth DO Wet End Assembly Optional Extras 29 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 5 Assembly of Makareth DO wet end The wet end assembly is supplied in kit form and consists of e Aplastic ABS pole optional A pneumatic cylinder and two black moulded O rings to fit in the piston rod faces A sensor extension A sensor mounting head and cable A Makareth DO cell A calibration cleaning shroud ball A cable sealing collet optional Assembly instructions Pneumatic tubing optional Assembly of the wet end should be carried out as follows 5 5 1 Fitting the pneumatic cylinder to the plastic ABS pole Remove the cylinder from the protective bag Screw it onto the thread on the pole ensuring that the seal is in place in the groove of the piston rod and that the white threaded ring is furthest from the pole and that the push fit fittings are
55. onnectors Screw the in line cable connectors together Push and twist the sensor head into the bayonet fixture 38 AZTEC SERIES 5000 DO DO MLSS Installation 8 Commisioning Manual SEVERN TRENT SERVICES 5 6 4 Fitting the Clark type cell Remove the retaining ring from the sensor head using the special tool provided illustrated right Unpack the new Clark DO cell and install it into the sensor head ensuring that it locates into its mating parts correctly The cell block is coated in silicone grease to repel moisture Do not remove this grease Figure 16 Clark DO cell retaining ring key Taking care not to damage the cell membrane or transfer any silicone grease onto the membrane screw the retaining ring over the cell Locating pin Locating pin FRONT VIEW Clark Retaining DO Cell ring SIDE VIEW Clark Retaining DO Cell ring I Figure 17 Illustrations showing the fitting of the Clark DO cell 39 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 6 5 5 6 6 5 6 7 5 6 8 40 Fitting the calibration shroud ball The calibration shroud or ball is supplied with a cleaning brush fitted in the bell mouth The brush is located in a groove and is secured by its own spring pressure and can easily be removed by hand if necessary Slide the shroud or ball over the sensor assembly taking great care to avoid contact with the cell me
56. perate in wastewater plants Removal and 12 13 maintenance of the wet end assembly poses a potential biological hazard Protective clothing should be used open wounds should be protected and skin or mucous membrane contamination should be washed off as soon as possible If accidental ingestion of biomass or wastewater occurs medical advice should be sought immediately The AZTEC DO system is often supplied with an integral compressor On calibration this may run for an extended period resulting in the motor housing becoming hot Care should be exercised if the compressor box is cover is removed Makareth cells are supplied stored in a sodium sulphite solution Refer to the following Material Safety Data Sheets before handling AZTEC SERIES 5000 DO DO MLSS Installation 4 Commisioning Manual SEVERN TRENT SERVICES MSDS SHEET SODIUM SULPHITE SOLUTION 3 to 10 w v in water Common Names SODIUM SULPHITE SOLUTION SODIUM SULFITE SOLUTION DO ELECTRODE STORAGE SOLUTION MSDS Contents Information on the topics in the list below are provided PRODUCT IDENTIFICATION COMPOSITION INFORMATION ON INGREDIENTS HAZARD IDENTIFICATION FIRST AID MEASURES FIRE FIGHTING MEASURES HANDLING AND STORAGE EXPOSURE CONTROL PERSONAL PROTECTION See o wa MATERIAL SAFETY DATA SHEET THE FOLLOWING INFORMATION BASED UPON CURRENT KNOWLEDGE AND EXPERIENCE OF THE PRODUCT IS NOT EXHAUSTIVE IT APPLIES TO THE PRODUCT AS DEFINED BY THE
57. reth DO cell to the sensor head e Carefully screw the rod into the bottom of the zu sensor head Sensor e Carefully slide the cell onto the rod align the extension contact pins and push firmly home e Screw the knurled nut onto the bottom of the og Sensor head cell Rod e Finally inspect the membrane for damage and refer to the manufacturers instructions if necessary D O cell wm knurled nut Figure 13 Diagram showing the fitting of Makareth DO cell 32 AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 5 5 Fitting the calibration shroud ball 33 The calibration shroud or ball is supplied with a cleaning brush fitted in the bell mouth The brush is located in a groove is secured by its own spring pressure and can easily be removed by hand if necessary Slide the shroud or ball over the sensor assembly taking great care to avoid contact with the cell membrane Ensure that the O ring seal is against the pneumatic cylinder and tighten the clamping ring by hand E Use firm hand tight force Do not use tools In order to protect the Makareth DO cell when handling the probe push the pneumatic cylinder down by hand so that the sensor is inside the calibration shroud ball AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 5 6 Connecting the pneumatic tubes 5 9 7 34 Please refer to the pneumatic
58. roud which brushes over the face of the sensing element as the shroud moves Moving the sensor into the inside of the shroud and then blowing air through the annular space between shroud and sensor affects calibration This is continued for a given period to allow equilibrium to be attained after which the reading is adjusted to give a corrected 100 saturation value The manual intervention modes are accessible by typing a code on the front panel keyboard This will suspend normal operation and allow manual control of the piston and aeration functions These modes are used for maintenance and diagnostic purposes Further detail of operation and the different modes is given in sections 7 and 8 Access to Data Three methods of data access are available 1 Front Panel Interface Local Mode 2 Local Serial Communications Access via a PC or similar 3 Remote Serial Communications Access via modem PSTN and PC or similar Front Panel Interface Local Mode Using the front panel interface keypad and display it is possible to check the current state of the instrument and configure test and alter basic aspects of its setup Further details on the use of the keypad can be found in section 8 Advanced configuration of the instrument must be carried out via the serial communications Severn Trent Services staff should be consulted before attempting this AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVE
59. s panel Front view AIR SUPPLY UP DOWN AERATE Figure 6 Local Control box Front view showing buttons View of base Figure 7 Local control box view of base showing connectors AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 3 1 Local Control Box Mounting The local control box is supplied with the mounting plate already fixed to the box The mounting plate should be fitted to the same mounting bracket securing the DO Probe Assembly The plate is supported by the two V bolt nuts nearest the locking wings which should be tightened down onto the mounting plate See the diagram below for the positioning of the box onto the handrail clamping bolt Plastic ABS poie of wet end assembly plate shown cut away for clarity V bolt nut Mounting Plate handrail Figure 8 Diagram showing the local control box mounting arrangement 5 3 1 Local Control Box Pneumatics 24 The colour coded pneumatic tubes are fitted into the push fit connectors as shown previously The air tubes from the probe are colour coded red green and blue Red top of pneumatic cylinder Green bottom of pneumatic cylinder Blue aerate line down centre of support pole The air supply which may be from the Main System Assembly or from a site supply is 6 mm nylon tube to BS5409 standard AZTEC SERIES 5000 DO DO MLSS Installation 4 Commisioning Manual SE
60. section must be read prior to installation Design gives a brief description of the Aztec Series 5000 Dissolved Oxygen System and the function it performs AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES Specification provides technical details of the AZTEC Series 5000 Dissolved Oxygen System Installation describes the recommended method of installation Commissioning provides commissioning details of the AZTEC Series 5000 Dissolved Oxygen System In addition there are three appendices taken from the larger user manual Appendix A Certificate of Conformity Appendix B Warranty Exclusions Appendix D Software Licence Agreement 2 AZTEC SERIES 5000 DO DO MLSS Installation 8 Commisioning Manual SEVERN TRENT SERVICES NO SAFETY PROCEDURES The recommended installation and operating procedures have been designed with careful attention to safety Severn Trent Services has made formal safety reviews of the initial design and any subsequent changes This procedure is followed for all new products and covers areas in addition to those included in applicable safety standards The following safety precautions should be observed Observe safety warnings marked on the equipment These warnings identify areas of immediate hazard which could result in personal injury or loss of life Do not use this equipment for any ot
61. the warranty will become void The following tools and equipment are recommended for use during the commissioning exercise Flat blade terminal screwdriver 5mm flat blade screwdriver Multimeter 20mA 50VDC 500VAC continuity range 17mm deep socket wrench spanner With respect to the multimeter the attention of the commissioning engineer is drawn to the 1000 ohm maximum drive capability of the AZTEC DO System analogue signals The commissioning engineer must also be aware of the need for fused test leads for use in conjunction with any test meter silicone grease for the Clark cell assembly and silicone rubber for the Makareth cell assembly AZTEC SERIES 5000 DO DO MLSS Installation amp Commisioning Manual SEVERN TRENT SERVICES 5 1 5 2 21 4 Pre commissioning checks and tasks On receipt the completeness of the AZTEC DO System should be checked against the parts list Any shortfall in the delivery of signs of damage should be notified in accordance with the terms of sales warranty Installation should be carried out in three parts a Physical location and installation of the main electronics panel and in the case of a double DO system the local control box b Assembly location and installation of sensor assemblies C Power signal and commissioning wiring Pneumatic tube connection Details of the above are provided on the following pages Installation of Main Electronics Panel

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