Model DO70G Optical Dissolved Oxygen Sensor
Contents
1. Weight S3 Approx 173 g PP Approx 20 g e Adaptor FPP Option Pg13 5 133 4 92 5 S38 T 1 1 1 026 5 Hi Weight Approx 65g Figure 1 2 External View and Dimensions of DO70G Optical Dissolved Oxygen Sensor IM 12J05D04 01E 1st Edition Feb 20 2012 lt 1 General gt 1 5 e DOX10 Power Supply Unit 275 4 M5 screws depth 10mm for mounting Approx 26 N Sensor cable inlet a Watertight plastic cable gland St d ETT L A 3 Al 2 x gt A a Power cable inlet Adaptor 2 Converter cable inlet G1 2 female CB1 Kk Adaptor for Conduit 1 2NPT female CD1 M20x1 5 CF1 Please use the watertight cable gland of the attachment If metallic conduit is directly connected with the case it becomes the factor of the measurement error Y b Watertight plastic cable gland with conduit adaptor F15 EPS Weight Approx 1 6kg Attached Cable with DOX10 Not supplied if suffix code 00 N is selected Black L KAL White Red G Cable length 1 5 m Model and Suffix Code L mm DOX10 U 00 N No cable DOX10 U 15 N Approx 1 500 Weight A2. a Always N Option Mounting bracket IP Pipe mounting bracket IW Wall mounting bracket ISCT Stainless steel tag plate CB1 G1 2 1pcs 1 2 NPT 1pcs M20 x 1 5 1pcs Tag plate Conduit work adaptor T03 ai Description Calibration set Style A This is necessary ifthe span calibration is to be done using a saturated dissolved oxygen solu tion It is not necessary for air calibration lt Contents gt Air pump stirrer stirring element bubbler clamp beaker and thermometer Note The calibration set can be used in common regardless of the type of holder e Spare Parts Part Name Part No Remarks Sensor cap K 9679AN Please shade the light during safe keeping Zero adjusting reagent L 9920BR Sodium sulfite 500g Adaptor K9148NA For submersion type holder stainless steel K9148NB For submersion type holder polypropylene K9679CA For float type holder polypropylene Sensor cable K9679BA 3m K9679BB 5m K9679BC 10m x1 O ring is attached to the sensor cap IM 12J05D04 01E 1st Edition Feb 20 2012 lt 1 General gt 1 4 1 2 3 External View and Dimensions eDO70G Seosor Serial No 9 gt 1500 Serial No TU WodeiSuffixeode Weight ka e Adaptor S PP Option Pg135 15 8 5 030 5 NE
3. Air supply pump aquarium pump Glass diffuser to generate small air bubbles bubbler NOTE Aerate for 15 to 30 minutes so that the water is fully air saturated Reagents for zero calibration e Sodium sulfite e Demineralized water The zero oxygen solution contains approximately 50 grams of sodium sulfite per liter CAUTION Zero calibration of the sodium sulfite solution may take a long time Even after the CAL END prompt is displayed wait for 5 to 10 minutes before pressing the YES key Otherwise calibra tion errors may occur during measurement The water calibration may take longer than 10 minutes It is recommended to set the Auto Return RET in Service Code 50 to 0 before starting the calibration procedure so as not to return to the measurement mode After the calibration set the Auto Return in Service Code 50 to the desired setting IM 12J05D04 01E 1st Edition Feb 20 2012 lt 4 Maintenance gt 4 3 Procedure of the water calibration 3 N DO HOA If X X 1 is selected in Service Code 51 the M PR ON message will appear to indicate that the manual pressure is enabled Press YES to O maswss O Fase Place sensor in calibration The instruments waits for the reading to stabilize er The display flashes Note To start calibration When reading Is stable with a zero solutio
4. descriptions of the basic system assumes that the DO402G Dissolved Oxygen Converter is used Refer to the instruction manual for information on the converter connecting holders with the DO70G and how to connect sensor cables Note that the instruction manuals listed in the following table are for the associated equipment used with the EXA po Dissolved Oxygen Metering System Manuals for Associated Equipment Used with the EXA po Dissolved Oxygen Metering Syatem Model Title of Manual Manual No DO402G Dissolved Oxygen Converter IM 12J05D02 01E DO70G Optical Dissolved Oxygen Sensor IM 12J05D04 01E DOX10 Power Supply Unit IM 12J05S01 01E PB350G Angled Floating Ball Holder IM 19H1E1 01E PB360G Vertical Floating Ball Holder IM 19H1E2 01E DOX8HS Submersion Type Holder Style B IM 19H1D2 01E PH8PU1 Cleaning Pump Tank IM 19C1E1 01E Note Only the basic system of basic components are listed on the front panel Refer to respective instruction manual for information on recorders annunciators and other instruments Media No IM 12J05D04 01E CD 1st Edition Feb 2012 YK IM 12J05D04 01E 1st Edition Feb 20 2012 All Rights Reserved Copyright 2012 Yokogawa Electric Corporation For the safe use of this equipment 1 2 3 About This Manual This manual should be passed on the end user The contents of this manual are subject to change without prior notice The contents of this manual shall not be
5. 2012 Revision Record Title Model DO70G Optical Dissolved Oxygen Sensor Manual No IM 12J05D04 01E Edition Date Remark s 1st Feb 2012 Newly published IM 12J05D04 01E 1st Edition Feb 20 2012 User s Model DO70G en Manual Optical Dissolved Oxygen Sensor Thank you for selecting our Model DO70G Optical Dissolved Oxygen Sensor User s Manual IM 12J05D04 01E 1st Edition supplied with the product some revisions additions have been made Please replace the corresponding pages in your copy with the attached revised pages Revisions Page 1 2 Section 1 2 1 Standard Specifications Changed of description Page 5 1 Section 5 1 2 Inspecting the Sensor Cap for Tightness Added of description and figure YOKOGAWA lt gt All Rights Reserved Copyright 2012 2nd Edition Feb 2013 YK IM 1 2J05D04 01 E Subject to change without notice 1st Edition Yokogawa Electric Corporation lt 1 Generals 1 2 1 2 Specifications 1 2 1 Standard Specifications Object of Measurement Concentration of oxygen dissolved in sewage and drainage water cannot be used with organic solvents Principle of Measurement Optical fluorescence measurement method Measurement Range 0 to 25 mg l Note The measurement range must be entered through the dissolved oxygen converter Temperature of Measurement water 0 to 50 C Flow rate 2m sec or less Pressure 0 to 500 kPa Resistance Temperture Detector RTD 22k N
6. SS O ring Ethylene Propylene Rubber EPDM Permeable membrane Silicone resin Cable shielding Heat resistant flexible PVC Sensor Cable Length 3m 5mor10m Crimping terminal configuration Pin type for converter M4 Ring type for power supply unit Weight Sensor Approx 0 1 kg Cable 3m Approx 0 4 kg 5m Approx 0 6 kg 10m Approx 1 1 kg Characteristics Repeatability 0 1 mg l or 3 FS whichever is greater Temperature Compensation Error Within 3 FS including sensor for a 5 C change in the range of 0 to 40 C Response Time Within 2 minutes 90 response including sensor IM 12J05D04 01E 1st Edition Feb 20 2012 lt 1 General gt 1 3 1 2 2 Model and Suffix Codes e DO70G Optical Dissolved Oxygen Sensor Suffix Code an Description ccs BEE Optical dissolved oxygen sensor Insert length 120 jenen 120 mm Type E Jeees Always E 00N No cable 085 basang 3m 11 Cable length O5E fece 5m 11 TERETE 10m 1 aS EN eee Always N Option Adaptor S3 Submersion type holder stainless steel PP Submersion type holder polypropylene FPP Float holder polypropylene Tag plate Stainless steel tag plate 1 The power cable is 1 5m Refer to DIMENSION TORAL e DOX10 Power Supply Unit Description a mas Power supply unit ser Always U EIER No cable nn 1 5m DO402G power supply use
7. into the submer sion type angled floating ball or vertical floating ball holders In the submersion type holder the sensor can be automatically cleaned with jet sprayed wa ter or air at regular intervals By selecting a suitable holder and cleaning device for applica tions a highly reliable low maintenance measurement system can be built with this sensor e Easy maintenance The sensor cap ages with time and eventually comes to the end of its service life Before this happens replace it with a new one The sensor cap is easily replaced Sensor Sensor Cable The detected signal travels through the cable Sensor Cap to the dissolved oxygen converter The cable length is selectable from 3 5 or 10 m Figure 1 1 External View of the DO70G Optical Dissolved Oxygen Sensor CAUTION Do not drop the sensor Please handle it with care IM 12J05D04 01E 1st Edition Feb 20 2012 lt 1 General gt 1 2 1 2 Specifications 1 2 1 Standard Specifications Object of Measurement Concentration of oxygen dissolved in sewage and drainage water Principle of Measurement Optical fluorescence measurement method Measurement Range 0 to 25 mg l Note The measurement range must be entered through the dissolved oxygen converter Temperature of Measurement water 0 to 50 C Flow rate 2m sec or less Pressure 0 to 500 kPa Resistance Temperture Detector RTD 22k NTC Construction Sensor unit Stainless steel 316L
8. reproduced or copied in part or in whole without permission This manual explains the functions contained in this product but does not warrant that they are suitable for the particular purpose of the user Every effort has been made to ensure accuracy in the preparation of this manual However when you realize mistaken expressions or omissions please contact the nearest Yokogawa representative or sales office This manual does not cover the special specifications This manual may be left unchanged on any change of specification construction or parts when the change does not affect the functions or performance of the product Ifthe product is not used in a manner specified in this manual the safety of this product may be impaired Safety and Modification Precautions Follow the safety precautions in this manual when using the product to ensure protection and safety of the human body the product and the system containing the product The following safety symbols are used on the product as well as in this manual The following safety symbols are used in this manual A CAUTION Identifies instructions that must be observed in order to avoid physical injury and electric shock or death of the operator A WARNING Identifies instructions that must be observed in order to prevent the software or hardware from being damaged or the system from becoming faulty A IMPORTANT TIP SEE ALSO Identifies important information requ
9. surface floor the 5 Fi edge of a solution tank etc NA 9 FO6 ai Ca Ng Figure 3 3 Suspension of Dissolved Oxygen Sensor Using PB350G Angled Floating Ball Holder IM 12J05D04 01E 1st Edition Feb 20 2012 lt 3 Installing the Sensor and Connecting the Cable gt 3 4 DOX8HS Style B Submersion Type Holder The holder holds the sensor at an angle of 45 Consequently bubbles will not stick to the sensor the tip Any pollutants in the SUM can be automatically cleaned off at regular intervals using a jet spray water air cleaner Figure 3 4 u ae Cleaning utility pipe N Sensor cable TH 6 Their e Y Optical dissolved oxygen sensor Jet cleaner Us Suspension of Optical Dissolved Oxygen Sensor Using DOX8HS Submersion Type Holder with Jet Cleaner IM 12J05D04 01E 1st Edition Feb 20 2012 lt 3 Installing the Sensor and Connecting the Cable gt 3 5 3 2 3 Assembling the Sensor in the Holder For details on how to assmble the sensor in the holder or fitting see the appropriate instruction manual for each holder or fitting CAUTION Exercise care not to contaminate or wet the tip of the sensor cable when assembling the sensor If you will not begin wiring the sensor cable immediately take the protective measures necessary to prevent the assembly from being damaged 3 3 Connecting the Sensor Cable The cable of the optical dissolved oxygen sensor must be connected to the terminals of
10. TC Construction Sensor unit Stainless steel 316L SS O ring Ethylene Propylene Rubber EPDM Permeable membrane Silicone resin Cable shielding Heat resistant flexible PVC Sensor Cable Length 3m 5mor 10m Crimping terminal configuration Pin type for converter M4 Ring type for power supply unit Weight Sensor Approx 0 1 kg Cable 3m Approx 0 4 kg 5m Approx 0 6 kg 10m Approx 1 1 kg Characteristics Repeatability 0 1 mg l or 3 FS whichever is greater Temperature Compensation Error Within 396 FS including sensor for a 5 C change in the range of 0 to 40 C Response Time Within 2 minutes 90 response including sensor IM 12J05D04 01E 1st Edition Feb 20 2012 lt 5 Maintenance gt 5 1 5 Maintenance This section describes the inspection and maintenance procedure applicable to just the dissolved oxygen sensor alone For comprehensive inspection and tuning of the measuring system such as calibration see the DO402G Dissolved Oxygen Converter user s manual IM 12J05D02 01E 5 1 Routine Inspection 5 1 1 Inspecting the Sensor Cap for Cleanness Degree of Contamination KA An inspection visual of the sensor cap must be made whenever the sensor is calibrated Any dirt on the sensor cap will adversely affect your measurements If the dirt is spread over the sen sor cap dip the sensor cap into clean water and gently wipe the dirt off with a soft cloth or lint free paper If the dirt will not come of
11. UM Avoid choosing a location where the solution is unevenly distributed since heavy hunting may result in the measured value Also avoid locations where bubbles occur frequently e The temperature and flowrate comply with the operating conditions required of the sensor and holder Note that ifa measured solution running at a high flow rate contains particles of sand the perme able membrane of the sensor may be damaged 3 2 2 Selecting the Sensor Holder Each holder or fitting where the DO70G Optical Dissolved Oxygen Sensor is assembled has the following characteristics Choose a holder that suits the liquid to be measured and the measurement location PB350G Angled Floating Ball Holder and PB360G Vertical Floating Ball Holder The fitting is designed to contain the sensor in a sphere that floats on a liquid This fitting is im mune to large variations in the liquid level Since the wet part is smooth and less susceptible to catching flocs the sensor does not trap rubbish that mixes in with the SUM Related descrip tion See Subsection 3 2 3 The float is supported by an arm and does not move away from the measurement point even if the SUM is flowing When using this holder the membrane damage detector function in the converter can be acti vated N Sensor cable NS la Die Float a Mounting bracket i g Fix the bracket to a nominal 50 A Sl pipe OD of 60 5 mm ora KA N horizontal
12. User s EXA Do Manual Model DO70G Optical Dissolved Oxygen Sensor IM 12J05D04 01E vigilantplant YOKOGAWA IM 12J05D04 01E 4st Editi Yokogawa Electric Corporation st Edition Introduction The DO70G optical dissolved oxygen sensor uses the optical fluorescence measurement meth od to continuously measure oxygen dissolved in water Topics and information that need your special attention in handling the product are given in the text of this manual along with cautionary notes such as a warning or caution depending on their importance Strictly observe these items from the standpoint of safety and prevention of equip ment damage For a notation such as a warning also indicated on the product there is an alert mark in the manual 1 Confirming the Specifications The DO70G sensor cable should have the specified length The crimp on terminals are either pin type or M4 ring type Upon arrival ofthe purchased product carefully unpack it and make sure the product has not been damaged during transportation Also check the model code to confirm that the sensor is exactly as ordered For details ofthe model code see subsection 1 2 2 on page 1 2 2 Information Covered by This Manual This manual covers all of the information on handling the DO70G optical dissolved oxygen sen sor such as instructions on installation inspection and maintenance and service Note When system components other than DO70G have to be mentioned
13. cal dissolved oxygen sensor 4 1 1 Setting Parameters ofthe Sensor a Code 01 S TYPE Select 1 for optical and polarographic sensors Press the ENT key to display I CELL on the section L CELL Select 9 and input a nominal cell current of 60 nA 4 1 2 Setting Parameters for Temperature Code 10 T SENS Select 3 for 22k NTC 4 1 3 Setting Parameters for Calibration Code 21 0 CAL Select 1 for zero calibration For other settings see DO402G Dissolved Oxygen Converter IM12J05D02 01E IM 12J05D04 01E 1st Edition Feb 20 2012 4 2 4 2 1 lt 4 Maintenance gt 4 2 Calibration The DO70G optical dissolved oxygen sensor is calibrated at the DO402G converter Calibration is performed e When the DO70G is installed When the sensor cap is replaced e When the measuring error exceeds the acceptable deviation from the reference method after cleaning e When the error message appears stating that maintenance is required Calibration Procedure Before starting measurements perform both span and zero calibrations by the water calibration method Wash off any dirt on the sensor cap in maintenance mode Lightly wipe the sensor cap dry with a soft tissue Prepare the necessary equipment and reagents for the span and zero calibrations Equipment for calibration includes e Beaker or bucket e Magnetic stirrer or other tools for agitating e Demineralized water or salty process water if salinity compensation is activated
14. e Failure due to power supply voltage frequency being outside specifications or abnormal e Failure caused by any usage out of scope of recommended usage e Any damage from fire earthquake storms and floods lightning disturbances riots warfare radiation and other natural changes Yokogawa does not warrant conformance with the specific application at the user site Yokogawa will not bear direct indirect responsibility for damage due to a specific application Yokogawa will not bear responsibility when user configures the product into systems or resells the product Maintenance service and supplying repair parts will be covered for five years after the production ends For repair for this product please contact the nearest sales office described in this instruction manual IM 12J05D04 01E 1st Edition Feb 20 2012 Model DO70G Optical Dissolved Oxygen Sensor IM 12J05D04 01E 1sth Edition CONTENTS Introduction AA a i For the safe use of this equipment uunennnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnnnnnnnnnnnnnnn ii Y After sales Warranty eu en iii 1 General eee eee eee er AA lie 1 1 1 1 FQ ACUI Sic NANGGAD 1 1 1 2 SPOCITICALIONS wii aNG a aa 1 2 1 2 1 Standard Specificatli nszaaiea seine 1 2 1 2 2 Model nd Suffix CodeS aaa Naam AABANG NANANG 1 3 1 2 3 External View and Dimensions ennenneenneenneenneennenneennnen 1 4 2 COMPONENES inn anna AA 2 1 3 Installing the Sensor and Con
15. f easily apply a neutral detergent to the sensor cap so it will be easier to remove the dirt Clean the sensor cap with clean water 5 1 2 Inspecting the Sensor Cap for Tightness Before every calibration check that the sensor cap is not loose If it is loose retighten it When you retighten or exchange the sensor cap use an attached silicon tube and so forth Sensor S Sensor Cap Silicon Tube When you attach or detach the sensor cap use an attached silicon tube and so forth IM 12J05D04 01E 1st Edition Feb 20 2012
16. h clean water 5 1 2 Inspecting the Sensor Cap for Tightness Before every calibration check that the sensor cap is not loose If it is loose retighten it IM 12J05D04 01E 1st Edition Feb 20 2012 lt 5 Maintenance gt 5 2 5 2 Inspection If Failure Occurs If the sensor cap ages and comes to the end of its service life troubles such as failure to make a span adjustment will occur This section deals especially with the inspection and service of the optical dissolved oxygen sen sor if any trouble is found in a detected signal Either or both of the following measures are necessary to solve the problem Replacing the sensor cap and it s o ring e Replacing the sensor unit 5 2 1 Checking of RTD in the Sensor A22k NTC resistance temperature detector RTD is used in the DO70G sensor This RTD indicates a resistance value of about 22 kQ at 25 C Check the RTD by measuring the resistance value between the white wiring and green wiring If the resistance value differs greatly from the above value the sensor must be replaced 5 2 3 Checking of the Sensor Any failures in the DO70G can be confirmed at the DO402G converter If error number E4 E7 E8 E9 or E12 appears on the display follow one of the procedures below e Cleaning the sensor unit e Replacing the sensor cap and it s o ring e Replacing the sensor unit IM 12J05D04 01E 1st Edition Feb 20 2012 lt 5 Maintenance gt 5 3 5 3 Expendables Spare Parts and Ma
17. intenance Parts This section presents the general information on spare parts that the manufacturer recommends you to provide and on materials that are used in maintenance and service When procuring these parts or materials also refer to the Customer Maintenance Parts List CMPL at the end of this manual 5 3 1 Maintenance Parts Expendables Table 5 1 Items Contained in the Maintenance Parts Item Part No Qty Remarks Sensor cap K9679AN 1 Please shade the light during safe keeping Calibration must be carried out at a predetermined interval the frequency of calibration varies depending Reagent for preparing calibra on the operating conditions Calibration must also be tion solution for zero adjust L9920BR 500g performed when for example the sensor cap is re ment placed sodium sulfite Na SO Approximately 50 grams of the reagent is needed to prepare 1 liter of the calibration solution for zero adjustment K9148NA 1 For submersion type holder stainless steel Adaptor K9148NB 1 For submersion type holder polypropylene K9679CA 1 For float type holder polypropylene K9679BA 1 3m Sensor cable K9679BB 1 5m K9679BC 1 10m 1 O ring is attached to the sensor cap 5 3 2 Parts That Should Be Kept on Hand Even parts with a long service life are not completely free from possible failure It is recommend ed that users have on hand spare parts for those parts which if they beco
18. ired to understand operations or functions Identifies additional information Identifies a source to be referred to IM 12J05D04 01E 1st Edition Feb 20 2012 After sales Warranty e Do not modify the product e During the warranty period for repair under warranty carry or send the product to the local sales representative or service office Yokogawa will replace or repair any damaged parts and return the product to you e Before returning a product for repair under warranty provide us with the model name and serial number and a description of the problem Any diagrams or data explaining the problem would also be appreciated O If we replace the product with a new one we won t provide you with a repair report Yokogawa warrants the product for the period stated in the pre purchase quotation Yokogawa shall conduct defined warranty service based on its standard When the customer site is located outside of the service area a fee for dispatching the maintenance engineer will be charged to the customer In the following cases customer will be charged repair fee regardless of warranty period Failure of components which are out of scope of warranty stated in instruction manual e Failure caused by usage of software hardware or auxiliary equipment which Yokogawa did not supply Failure due to improper or insufficient maintenance by user e Failure due to abuse misuse or modification which Yokogawa does not authoriz
19. me defective will make it impossible to continue measurement Spare Sensor Assembly Leaving the sensor unused for a long period may cause some troubles in the sensor cap and other parts requiring these parts to be replaced with new ones In spite of this possibility we recommend that users keep spare sensors in case of failure of a sensor in use IM 12J05D04 01E 1st Edition Feb 20 2012 1st Edition Feb 20 2012 Customer D070G Maintenance Parts List Optical Dissolved Oxygen Sensor EXA DO Ite Part No 1 2 K9679AN 3 K9679BA K9679BB K9679BC Model Suffix Code Option Code Qty Description 1 Optical Dissolved oxygen sensor Refer to table of below Model amp Code Sensor cap Sensor cable 3m Sensor cable 5m Sensor cable 10m Description DO70G rer ee Optical Dissolved oxygen sensor Insert length a120 aaa 120mm Type pO eis Always E aY 2086 mir DOSE A siete A0E las Cable length No cable 3 m x1 IN una Always N Option Adaptor S3 PP IFPP Tag plate SCT 1 The power cable is 1 5m Submersion type holder Stainless steel Submersion type holder Polypropylene Froat holder Polypropylene Stainless steel tag plate All Rights Reserved Copyright 2012 Yokogawa Electric Corporation Y YOKOGAWA G Subject to change without notice C MPL 1 2J 05 D04 01 E Yokogawa Electric Corporation 1st Edition Jan
20. n the CAL END message press NO zero appears calibration must be activated in service code 21 Press YES for single point adjustment yes After briefly displaying WAIT the display returns to the normal readout from 1 Transfer to zero solution and press YES When the reading is stable the CAL END message appears Press YES YES After briefly displaying WAIT the display returns to the normal readout IM 12J05D04 01E 1st Edition Feb 20 2012 lt 5 Maintenance gt 5 1 5 Maintenance This section describes the inspection and maintenance procedure applicable to just the dissolved oxygen sensor alone For comprehensive inspection and tuning ofthe measuring system such as calibration see the DO402G Dissolved Oxygen Converter user s manual IM 12J05D02 01E 5 1 Routine Inspection 5 1 1 Inspecting the Sensor Cap for Cleanness Degree of Contamination O An inspection visual of the sensor cap must be made whenever the sensor is calibrated Any dirt on the sensor cap will adversely affect your measurements If the dirt is spread over the sen sor cap dip the sensor cap into clean water and gently wipe the dirt off with a soft cloth or lint free paper If the dirt will not come off easily apply a neutral detergent to the sensor cap so it will be easier to remove the dirt Clean the sensor cap wit
21. necting the Cable uunsunnsnnnnnennnnnenn 3 1 3 1 Preparing for Installation unssrensnensnennnennnennnannnannnannnannnannnannnannnannnannnannnannn 3 1 3 1 1 Removal of Parts for Transportation and Storage s es 3 1 3 1 2 Method of attaching detaching the sensor cable 3 1 3 1 3 Assembling the Adaptor cecceecceeceeeeeeeeseeesneesieesneesieesieesinesneeteees 3 2 3 2 Installation Aa 3 3 3 2 1 Selecting the Measurement Point u rssernsnneennennnnnnnnnnnnn nn 3 3 3 2 2 Selecting the Sensor Holder urennnnnnnnnnnnnnnnnnnnnnnnnn nn 3 3 3 2 3 Assembling the Sensor in the Holder 2 224424044 4er nennen 3 5 3 3 Connecting the Sensor Cable uusssennsennnennnennnennnennnnnnnnnnnnnnnnnnnennnennrannrannnen 3 5 4 Setting and Calibrating the Converter u2200044424000000n0n0nnnnnnnn nun 4 1 4 1 Setting the Converter the DO402G Converter uunensennnennnennnennnennnennnennnenn 4 1 4 1 1 Setting Parameters of the Sensor uneenmsennennnnennnnnnnnnnnnnnnn ran 4 1 4 1 2 Setting Parameters for Temperature nennseneennennnennnennnnnn nn 4 1 4 1 3 Setting Parameters for Calibration u rnernsnnennennnennennnnnnnnn 4 1 4 2 Calibration AA 4 2 4 2 1 Calibration Pro kadumi A al 4 2 5 Maintenance AA AA 5 1 Routine Inspection us 220s440annnnannnnnnnnnannnnannnnnnnnnnnnnnnnnnnnannnnannnnnnnnnn
22. nnn 5 1 5 1 1 Inspecting the Sensor Cap for Cleanness Degree of Contamination rnernerneenneenneenneenneennennnnenneennen nenn 5 1 5 1 2 Inspecting the Sensor Cap for Tightness sesnener nennen 5 1 5 2 Inspection If Failure OCCUrS maana anan an ana NONA NN anna mann 5 2 5 2 1 Checking of RTD in the Sensor usnnsenneennennnnnnnnnnnnnnnnnnnnn nn 5 2 IM 12J05D04 01E 1st Edition Feb 20 2012 5 2 3 Checking of the Sensor oenenmennenneennennnnnnnnnnnnnnnnnnnnn nn 5 2 5 3 Expendables Spare Parts and Maintenance Parts zusu2sumrsnnnenn 5 3 5 3 1 Maintenance Parts Expendables eenenneenneenneenneenneen 5 3 5 3 2 Parts That Should Be Kept on Hand nennen 5 3 Customer Maintenance Parts List uesssnssnennnnnnnnnnnnnenn CMPL 12J05D04 01E Revision RECO i IM 12J05D04 01E 1st Edition Feb 20 2012 1 1 lt 1 General gt 1 1 General Features e Long stability The sensor will be ready for measurement approximately 10 minutes after turning on the power The sensor can be used continuously and stably for a long time thanks to the stain resistant sensor cap and the measurement method which is less susceptible to disturbance It also is hardly influenced by air bubbles in the measurement liquid e Highly reliable measurement system with low maintenance The sensor withstands a pressure of up to 500 kPa It can be assembled
23. pprox 0 3kg 1 500 mm Figure 1 3 External View and Dimensions of DOX10 Power Supply Unit IM 12J05D04 01E 1st Edition Feb 20 2012 e Pipe Mounting Bracket for Power Supply Unit Optional Option Code P lt 1 General gt Weight 0 7 kg 4 M5 screw 5 06 5 holes To o Pipe mounting bracket 1 2 05 5 holes o o g Pipe mounting bracket 2 1 U bolt pa men 5 2 9 0 5 holes 8 M8 nut x2 i 4 010 hol i Ki MAD holes ky AL 100 10 90 56 Nominal 50A O D 060 5 pipe Figure 1 4 External View and Dimensions of Pipe Mounting Bracket e Wall Mounting Bracket for Power Supply Unit Optional Option Code W Weight 0 7 kg 4 M5 screw ud 5 26 5 holes x co amp ps 2 2 po iS pa Wall mounting bracket i E gt 2 05 5 holes a 10 o a amp o D D 3 E P j m 4 910 holes 70 L 100 d Figure 1 5 en 7 Y A A A A 8 2 Y 9 LY L_ 9 E Y 4 Y Y Z 4 M6 screw Y 4 Y 7 7 4 10 90 15 Y External View and Dimensions of Wall Mounting Bracket IM 12J05D04 01E 1st Edition Feb 20 2012 lt 2 Components and Their Functions gt 2 1 2 Components Sensor Sensor Cable The detected signal travels through the cable Senso
24. r Cap to the dissolved oxygen converter The cable length is selectable from 3 5 or 10 m Figure 2 1 Components of DO70G Optical Dissolved Oxygen Sensor A CAUTION Do not loosen the sensor cap except for replacement IM 12J05D04 01E 1st Edition Feb 20 2012 lt 3 Installing the Sensor and Connecting the Cable gt 3 1 3 Installing the Sensor and Connecting the Cable 3 1 Preparing for Installation 3 1 1 Removal of Parts for Transportation and Storage Acap to prevent the sensor cap from being damaged when transporting the sensor is mounted at the tip of the DO70G Optical Dissolved Oxygen Sensor When installing the sensor remove this protective cap 3 1 2 Method of attaching detaching the sensor cable 1 Attachment Method e Rotating the sensor connector so that its recessed portions will agree with the salient portions inside the cable connector insert the sensor connector into the cable connector Note A weak pressure is sufficient for inserting it If a strong pressure is needed to insert it the connection position will be incorrect Check the position and re try e After inserting the sensor connector completely grip the portion A and rotate the cap nut B portion clockwise until the nut cannot rotate 2 Detachment Method e Gripping the portion A and rotate the cap nut B portion un clockwise e After loosing the nut completely grip and pull the plastic portion of the sensor f
25. rom the cable connector A A B B Recess for positioning the sensor and cable Sensor portion Sensor portion CONECT E eps Figure 3 1 Attaching Detaching the sensor cable IM 12J05D04 01E 1st Edition Feb 20 2012 lt 3 Installing the Sensor and Connecting the Cable gt 3 2 3 1 3 Assembling the Adaptor An adaptor optional is necessary to assemble DO70G into the DOX8HS submersion type holder PB350G angled floating ball holder or PB360G vertical floating ball holder DO70G Optical Dissolved Oxygen Sensor DOX8HS Submersion type holder Place an O ring here Adaptor for submersion type holder Adaptor for floating type holder Figure3 2 Assembling the Adaptor IM 12J05D04 01E 1st Edition Feb 20 2012 lt 3 Installing the Sensor and Connecting the Cable gt 3 3 3 2 Installation The DO70G optical dissolved oxygen sensor powered by the DOX10 power supply unit can be assembled into the PB350G angled floating ball holder PB360G vertical floating ball holder or DOX8HS submersion type holder The assembly is submerged to the optimum point to obtain precise measurements This section explains how to select the measurement point and sensor holder 3 3 2 1 Selecting the Measurement Point EM Normally a location that meets the following requirements may be selected as the measurement point e The measured value is representative among the values available for the solu tion under measurement S
26. the DO402G Dissolved Oxygen Converter and DOX10 Power Supply Unit DO70G DOX10 Power Supply Unit L N G LNG AC IN TO CONVERTER BROWN BLUE O oO O O O O O O BLUE K9679HA DOX10 attached cable DO402G Converter Figure 3 5 Connection of Sensor Cable IM 12J05D04 01E 1st Edition Feb 20 2012 lt 3 Installing the Sensor and Connecting the Cable gt 3 6 DO70G Wiring Diagram Example DO402G DOX10 Detail 1 171 SEEISIEBISTEISIS _eleleleleragferge TEES DO70G Detail 2 DOX10 Connections of the sensor cable and DOX10 terminals Detail 1 DO402G are shown in the following table Connections of the sensor cable and DO402G terminals DO70G Wiring color DOX10 terminal No are shown in the following table BROWN BROWN DO70G Wiring color DO402G Terminal No BLUE BLUE ree KAP HS GreenYellow For details on operation during startup or for regular operation after the entire measuring system is brought into operation refer to the DO402G Dissolved Oxygen Converter instruction manual IM 12J05D02 01E The maintenance and service of the dissolved oxygen sensor is explained in Section 4 that follows IM 12J05D04 01E lt 4 Maintenance gt 4 1 4 Setting and Calibrating the Converter 4 1 Setting the Converter the DO402G Converter Set the parameters of the DO402G converter to connect to the DO70G opti
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