Model SC8SG CONDUCTIVITY DETECTOR
Contents
1. 2 2 3 4 HOR 6 th is HIT SC8SG Rol o 315 Flow through Type PP Pin shaped Fork shaped Ring shaped Pin shaped Fork shaped Ring shaped Qi Y i NG YO 9 2 9 2 10 3 10 3 4 4 um 5 5 mr 6 Pr 7 e c di 5th Edition May 2011 YK CMPL 12D08G02 01E Item 00 11 12 SC8SG R Part No K9208BP K9315PB K9208BL G9303EB K9208BH K9315PA K9208BA K9208BC K9208BD K9053LD K9053MD K9053JN K9053JT Y9514ZU K9115RS K9053LR 5th Edition May 2011 YK 1 0 300 SS Mounting hardware of Flow through Type SCS14 Qty Description 1 Cable Assembly See MS code of WU41 1 Lock Nut For SCS14 suffix code of 302 303 304 305 For PP suffix code of 312 313 314 315 1 Washer 1 O ring 1 Socket For SCS14 suffix code of 302 303 304 305 For PP suffix code of 312 313 314 315 1 Sensor Cell Constant 0 01 cm 1 2 electrode type Cell Constant 10 cm 2 electrode type Cell Constant 10 cm 4 electrode type 1 Chamber For SC8SG Ro1 o 302 For SC8SG Ro1 n 304 For SC8SG Ro1 o 312 1 Pipe mounting hardware for PS option 4 Screw 1 Bracket 2 1 2 NPT Adaptor For SC8SG Ro1 n 313 1 Mounting hardware for SS option CMPL 12D08G02 01E Revision Information e Title Model SC8SG Conductivity Detector Manual No IM 12D08G022. Cable lengh 5 5 m 10 m 20 m GU 4 91 NYIE l X188 Sl NYS 8 2 MU 28 71 LHM BLU ow n09s Guns 16 15 Fork terminal Ring terminal 14 mer men ER 13 gt 12 N Earth a Ro F22 ai IM 12D08G02 01E 5th Edition Oct 28 2015 00 5th Edition Oct 28 2015 00 lt 2 Componens and Their Function gt 2 1 2 Components and Their Function The Screw in type i shown in the figure has a two electrode detector with cell constant of Welded to detector inlet on process piping Flow direction of measured solution Electrode e Detector two electrode system with cell constant of 0 01 cm Figure 2 1 Screw in Type Detector Pin terminals Flow through Type Detector Name plate TA Sl Connector locknuts m dU Detector cables connected to detectors with specified connectors 5 5 10 20 m cable selectable Pi Detector cables are gt locked to detectors Washer Locknuts to fix detectors and O ring to prevent leakage of measured solution O ring Flow direction of measured solution STE Two types of detector available One with cell constant of 0 01 cm and the other with cell constant of 10 cm Two electrode and four electrode systems are available for cell constant of 10 cm A Pt 10000 RTD is incorporated in the detector The Flow through type detector sho
3. sssssssssssssss 3 8 3 3 2 Laying Detector Cables rrnrnrnnnvnnnvnnnvnnnvnnnvnnnvnnnvnnnvnnnvensvensrnnnvennnnnn 3 8 OPEN A nn ana aaa ceeded ees 4 1 4 1 Preparation for Operation rsernnnnvnnnnvnnnnvnnnnnnnnnnvnnnnvnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnen 4 1 4 1 1 Checking Piping and Wiring usererssennensnnnnnnnnnnnnnnnnnnnnnnnn 4 1 4 1 2 Flowing Measured solution 424rnenneenneenneennennnennnennnnennennnnnn 4 1 4 1 3 Checking Operation u s 4 1 4 2 Steady State Operation rssrnnnvnnnvnnnvnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 4 2 4 2 1 If any problem arises during operation ssessssss 4 2 4 2 2 Cautions When Stopping or Resuming Operation 4 2 IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt CONTENTS gt vi 5 Inspection and Maintenance rxnnnvvnrnnnanvnnnnnnnnvnnnnnnnnnnnnnnnvnnnnnnnnennnnnnen 5 1 5 1 Cleaning the Detector euis 40444000 inte 5 1 5 1 1 Guidelines for Cleaning 0 4000 5 1 5 1 2 Removing the Detector nernenneennennnennnennnennnnnnnennnennnnnnnnnn 5 1 5 1 3 Cleaning 5 2 5 2 Inspection of O ring Sealing aaa 5 2 Customer Maintenance Parts List CMPL 12D08G02 01E Revision Information ee ccm i IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 1 General gt 1 1 1
4. when the combination of measuring range R61 and Electrode configuration T is chosen x2 Electrode configuration F cannot be chosen when R31 is chosen For process where can give contamination to a detector a four electrode detector the combination of R61 and F should be used 3 If a welding socket K9208BK needs to be ordered beforehand either place a separate order or prepare one by referring to the extemal view later in this brochure 4 Impossible use for the SC400G 4b Used for connection to FLXA202 FLXA21 Used for connection to SC450G SC202 TB The model is not equipped with a mounting hardware please place an order on the SC8SG with option code PS or SS when you select flow through model The PP chamber can have cracks or splits unless it is not supported by a mounting hardware Applicable transmitter converters for SC8SG per Type of terminals Converter SC100 N A Transmitter SC202G SC202SJ Yes N A Hos Converter SC402G 3 Yes N A N A Converter SCA50G 2 N A Yes Analyzer FLXA202 FLXA21 Yes Yes N A el 2 ta Applicable when option code TB screw terminal specified for SC202G SC202SJ Both pin and M3 ring can be used for SC450G but M3 ring are recommended SC402G has been terminated IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 1 General gt 1 5 2 Spare Parts for SC8SG Parts No Description K920
5. 1 1 General Features of SC8SG Conductivity Detector SC8SG can measure conductivities ranging from 0 05 uS cm to 1000 mS cm so can be used in a variety of processes The SC8SG Conductivity Detector has a cell constant of either 0 01 cm or 10 cm These two detectors can measure conductivities ranging from 0 uS cm to 1000 mS cm High conductivity solutions can be measured stably for prolonged periods of time In high conductivity solution measurements polarization is likely to cause measurement errors Two electrode and four electrode detectors with cell constants of 10 cm are available for measurement of high conductivity solutions Four electrode detectors are less likely to be affected by polarization enabling more stable measurements and they can measure conductivity of solutions with high conductivities Polarization may also be caused by contamination of electrodes The four electrode detector is less likely to be affected by polarization and is less affected by dirty electrodes so requires less maintenance Direct mounting on the process piping also allows the detector to measure the conductivity of high temperature solutions We offer both Flow through sampling type and Screw in type SC8SG Conductivity Detectors with a cell constant of 0 01 cm can measure solutions with temperatures up to 130 C this allows measurement of hot boiler water and the like Pt 1000 sensor in the detector provides precise temperature m
6. 01E Oct 2015 5th Edition Added FLXA202 P i P1 2 P1 4 P1 5 Unification ot the material name P1 2 P3 5 Aug 2015 4rd Edition P1 4 Description of Measuring range added to 1 2 2 Model and Suffix Codes P2 1 The Name plate and the cell constant label added to Figure 2 1 P3 1 Symbol Marks of IMPORTANT added to 3 1 Installation Jun 2011 3rd Edition Pi Manual No of FLXA21 added P1 1 Some of cable label description modified P1 2 Some of wetted part materials modified P1 3 M4 ring terminal of FLXA21 added to MS code P1 4 FLXA21 added to combination of detector and converters P1 5 to P1 9 Some of cable label description on dimensions modified etc P3 7 Some description of Wiring modified Jan 2008 2nd Edition Ring terminals added for SC450G converter June 2004 1st Edition Newly published W f you want to have more information about Yokogawa products you can visit Yokogawa s home page at the following web site Home page http www yokogawa com an IM 12D08G02 01E 5th Edition Oct 28 2015 00
7. minimum flow rate of about 1 liter min IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 3 Installation Piping and Wiring gt 3 6 Temperature of the measured solution The maximum temperature of the measured solution is restricted according to the heat resistance of the chamber and piping materials used NOTE The maximum temperature for a polypropylene PP chamber is 80 C For a stainless steel SCS14 chamber the maximum temperature of the measured solution is 100 C for detector with a cell constant of 0 01 cm or 130 C for detectors with a cell constant of 10 cm When reference temperature conversion is performed choosing a reference temperature that is close to the measurement temperature reduces the effect of the accuracy of the temperature coefficient on measurement accuracy Bubbles in measured solution If the measured solution contains bubbles this may cause the measured value to fluctuate If the measured solution contains large amounts of bubbles or where bubbles are generated by a pressure drop use an overflow tank as shown in Figure 3 5 to reduce the bubbles Overflow Tank Stop valve L Figure 3 5 Piping Example where Measured Solution contains large amounts of bubbles Drain pipe Process piping F0305 ai 2 Procedures for piping Position of the measured solution outlet When a polypropylene chamber is used be sure that the outlet for the measured solution is correctly
8. of 10 cm should be installed in positions A above Figure 3 1 Orientation of the Detector relative to Flow of Measured Solution e Atthe measurement point the temperature and pressure of the measured solution should not exceed the limits specified refer to Section 1 2 1 earlier in this manual e Detectors should be removed for maintenance when the detector is removed make sure that the measured solution does nat flow out of the insertion port Machining the detector insertion port Figure 3 2 shows the dimensions of the detector insertion port 36 Unit mm 231 a gt O ring Seal Area 4114 17 x M48x2 649 Solution Levle 212 mm min O ring Measured Solution Detector Probe Detector mounted on its insertion port F0302 ai Figure 3 2 Structure of Screw in Type Detector Mounting Section IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 3 Installation Piping and Wiring gt 3 3 To facilitate machining the detector insertion port the company has prepared sockets as shown in Figure 3 3 The detector mounting section of these sockets are machined as shown in Figure 3 2 55 Unit mm Detector Welded all around the Direction of Measured Solution Flow circumference O ring 50 0 2 50X50X40 Sch 40 reducing T gt A C1 K9208BK Welded Socket NG amp o 9 Hole Drilled 850 5 mm K9208BK Welded Socket flush mounting Materia
9. oriented the piping The measured solution outlet can be oriented either forward to the right or left When the detector is plate mounted the measure solution outlet can also be oriented backwards see figure 3 4 for reference To change the direction of the measured solution outlet remove the detector together with the socket and loosen the four bracket mounting screws as shown in Figure 3 6 to remove the solution chamber Note The measured solution outlet is oriented to the right side at the factory before shipment IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 3 Installation Piping and Wiring gt 3 7 Bracket Mounting Screws four Bracket Chamber Pipe Mounting Bracket F0306 ai Figure 3 6 Removing Bracket Where the detector is mounted horizontally be sure that the measured solution outlet is oriented upwards Piping to Measured Solution Outlet Be sure to orient upwards Mark the pipe as short as possible and install a stop valve Piping to Measured Solution Inlet Note If the detector is removed from a horizontally installed detector solution inside the Detector Solution Chamber chamber will flow out Socket Installation Location oral Figure 3 7 Piping Connection Where Detector Solution Chamber Is Positioned Horizontally To help avoid problems with the detector Use appropriate materials for piping to avoid corrosion or damage e If corrosive components are contained in the mea
10. product please contact the nearest sales office described in this instruction manual IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt CONTENTS gt CONDUCTIVITY METERING SYSTEM Model SC8SG CONDUCTIVITY DETECTOR IM 12D08G02 01E 5th Edition CONTENTS 4 4 1 o A S i For the safe use of this equipment rrrnnvvvrnnnnnvvnnnnnnnvnnnnnnvvnnnnnnnvnnnnnnnnennnnnn ii After sales Warranty cad is iv A ENE 1 1 1 1 Features of SC8SG Conductivity Detector sess 1 1 1 2 Specifications rater ae e ecce e escena P RERO EVA ETATE ER EZ 1 2 1 2 1 Standard Specifications sssssssssssssseese 1 2 1 2 2 Model and Suffix Codes 1 4 1 2 3 BID 1 6 Components and Their Function rrxsavvrnnnnnvnvnnnnnnvnnnnnnnnvnnnnnnvnvnnnnnnenennnn 2 1 Installation Piping and Wiring eene 3 1 3 1 Installation 3 1 3 1 1 Preparation for Detector Installation nn 3 1 3 1 2 Detector Installation 4 444044444044n40nnnnnnnnnnnnnnennnnennnnen 3 4 3 2 PIDIO p 3 5 3 2 1 Piping Materials 2a 3 5 3 2 2 Making Sampling piping 3 5 3 3 WINING E 3 8 3 3 1 Detector Cable Specifications
11. specified in this user s manual the protection provided by this instrument may be impaired Be sure to use the spare parts approved by Yokogawa Electric Corporation hereafter simply referred to as YOKOGAWA when replacing parts or consumables Modification of the product is strictly prohibited The following symbols are used in the product and user s manual to indicate that there are precautions for safety B Notes on Handling User s Manuals Please hand over the user s manuals to your end users so that they can keep the user s manuals on hand for convenient reference Please read the information thoroughly before using the product The purpose of these user s manuals is not to warrant that the product is well suited to any particular purpose but rather to describe the functional details of the product No part of the user s manuals may be transferred or reproduced without prior written consent from YOKOGAWA YOKOGAWA reserves the right to make improvements in the user s manuals and product at any time without notice or obligation If you have any questions or you find mistakes or omissions in the user s manuals please contact our sales representative or your local distributor E Warning and Disclaimer The product is provided on an as is basis YOKOGAWA shall have neither liability nor responsibility to any person or entity with respect to any direct or indirect loss or damage arising from using the product or any defec
12. 6 mm e Wire mesh reinforced flexible PVC tube nominal diameter 15 mm For stainless steel chamber e Stainless steel pipe JIS G 3459 e Stainless steel 304 SS or Stainless steel 316 SS nominal diameter 15 mm 3 2 2 Making Sampling piping Make sampling piping as per the following procedures 1 Cautions when making piping Pressure of the measured solution When a stainless steel SCS 14 chamber is used pressure of the measured solution can be up to 1 MPa When a polypropylene PP chamber is used pressure of the measured solution can be up to 500 kPa maximum Absolute maximum pressure of the measured solution also depends on the piping materials used Flow of the measured solution There are no special restriction on flow flow velocity as regards measuring conductivity AN NOTE If the temperature of the measured solution varies and the conductivity is converted to a value at a reference temperature the response of the temperature detector must be taken into account Note that under normal measuring conditions the temperature detector in the SC8SG conductivity detector has sufficiently fast response the flow velocity of the measured solution will not be an issue However if measured solutions containing slurry are passed through the detector and chamber at high rates of flow the detector or chamber may be worn out by abrasion To avoid this you should restrict maximum flow rate to about 20 liters min and aim for a
13. 8BA 0 01 cm cell constant two electrode sensor K9208BC 10 cm cell constant two electrode sensor K9208BD 10 cm cell constant four electrode sensor K9208BK Welding socket for Screw in model G9303EB O ring 3WU41 Suffix code Option code Description Cable end Dedicated Cable for SC8SG fork terminals pin terminals M4 ring terminals 1 M3 ring terminals 2 Cable length ALE Used for connection to FLXA202 FLXA21 5 5m 10m 20m 2 Used for connection to SC450G SC2020 TB IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 1 General gt 1 2 3 Dimensions 1 Screw in type Welding socket Parts No K9208BK Unit mm SC8SG R31 T 100 Low range Unit mm C1 055 Electrode with 0 01cm Cell constant gt Two electrode system gt i Em 2 Pin terminals mo 27 Locknuts 34 M48 x 2 Approx 78 ua 5 Y rc 942 Fork terminals 045 Material 316 SS 950 0 2 192 Note If you make the welding socket for Screw in type refer to the above drawing F16 ai Ring terminals Welding socket O Outlet for measured solution 156 F13 ai 130 SC8SG R61 T 100 High range Electrode with 10 cm Cell constant Two electrode system Unit mm DD Pin terminals Locknuts M48 x 2 Approx 78 Fork terminals Ring terminals Welding socket Outlet for me
14. D08G02 01E 5th Edition Oct 28 2015 00 SC8SG R 1 0 312 SC8SG Ro1 0 313 lt 1 General gt Screw connection Chamber Material PP Option Mounting hardware PS gt Unit mm Pin terminals GRU 4 91 NUD BEE Fork terminals Mounting hardware Option PS SC8SG R 1 0 314 SC8SG Ro1 0 315 Re 1 2 1 En Ring terminals Peer o 99 ML Il 50A pipe 170 d O D 260 5 Rc 1 2 PER Hi u F17 ai 1 2NPT 1 SC8SG RO1 O 312 NA 2 SC8SG R O 1 0 313 Flange connection Chamber Material PP Option Mounting hardware PS Unit mm R53 i Fork terminals Mounting hardware Option PS Ring terminals 99 50A pipe 4 815 holes 7 I eC oD 203 303 U y 1 215 N a7 Y In nl FH 100 Flange rating oC D JIS 10K 15 FF 70 95 ANSI Class150 1 2 FF 60 5 88 9 F18 ai IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 1 General gt 1 9 3 WU41 Dedicated cable Unit mm Approx 100 64 5 PG9 Pin terminal White Brown Green Yellow Black Red 29
15. User s Manual CONDUCTIVITY METERING SYSTEM Model SC8SG CONDUCTIVITY DETECTOR IM 12D08G02 01E vigilantolant YOKOGAM 9 IM 12D08G02 01E i i th Editi Yokogawa Electric Corporation 5th Edition lt Introduction gt l Introduction Conductivity Measuring System consists of a SC8SG Conductivity Detector as described in this manual used in conjunction with a SC202 FLXA202 FLXA21 or SC402G SC450G Conductivity Converter The SC8SG Conductivity Detector may use sensors with cell constant of 0 01 cm to measure conductivities of O to 100 uS cm or sensors with cell constant of 10 cm to measure conductivities of 0 to 1000 mS cm The sensors with cell constants of 10 cm may be two electrode or four electrode types four electrode types have the advantage that they are much less likely to be affected by polarization related errors so can be more consistent and accurate both with liquids that are likely to adhere to and stain the electrodes and with liquids having high conductivities The SC8SG detector may be inserted into the process piping for direct measurement of process liquids or a sample of the liquid may be obtained via a piping connection This user manual is intended to cover installation piping and wiring periodic inspection and maintenance for the SC8SG Conductivity Detector This manual does not describe the units in Table shown below which are the component units ofthe conductivity measuring system Each
16. asured solution 185 SC8SG R61 F 100 High range Electrode with 10 cm Cell constant E Do Pin terminals 78 EG Fork terminals 221 Ring terminals Welding socket Outlet for measured solution Y Y F15 ai le3j IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 1 General gt 1 7 2 Flow through type SC8SG Ro1 0 302 SC8SG Ro1 0 303 e Option Mounting hardware SS Screw connection Unit mm Chamber Material SCS14 Unit mm Chamber of Conductivity detector approx 102 50A pipe ba provided by the user 22a er ven Pin terminals gt 4 Locknuts Rc1 2 LX Fork terminals H or i L 1 Ring terminals ARA F21 ai Reize Rc1 2 or 1 2NPT F F19 ai Approx 58 SC8SG Ro1 0 304 SC8SG Ro1 0 305 Flange connection Chamber Material SCS14 Unit mm Pin terminals Approx 78 4 gh holes 26 Fork terminals C D 293 Ring terminals 205 75 Flange rating C D G ch t JIS 10K 15 RF 70 95 52 15 12 ANSI Class150 1 2 RF 60 5188 9134 9115 7111 2 with serration IM 12
17. cm for measuring conductivities up to 1000 mS cm you can clean the detectors at calibration time Four electrode detectors with cell constant of 10 cm are unlikely to be affected by polarization Therefore four electrode detectors are better for high conductivity measurements or for measurement of solutions containing suspensions that may adhere to the detector Detectors used to measure solutions with high conductivity and or suspended solids generally need more frequent detector cleaning than the low conductivity case In general you may need to clean detector used to measure high conductivity solutions at a more frequent intervals than just at calibration time Removing the Detector A CAUTION When removing detector ensure that solutions to be measured do not run out of the detector insertion port and handle with care especially when using solutions that may be pressurized or very hot ensure that solutions will not spurt out when detector is removed When removing the Screw in detector use an appropriate wrench to loosen the screw that locks it in its screw socket Turn the fixing screw counterclockwise During these procedures do not remove the connected detector cables Otherwise the inside of the connector may get wet IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 5 Inspection and Maintenance gt 5 2 5 1 3 Cleaning The electrodes are hidden inside the probe so we can t access them to check them for contami
18. difluoride glass and platinum Chamber Flow through type SCS14 or polypropylene resin IM 12D08G02 01E 5th Edition Oct 28 2015 00 Weight Screw in type Flow through type SCS14 chamber Flow through type SCS14 chamber flanged Flow through type polypropylene chamber Flow through type polypropylene chamber flanged Cable 0 3 kg for 5 5 m length 0 5 kg for 10 m length 0 9 kg for 20 m length lt 1 General gt 1 3 approximately 1 3 kg excluding the cable approximately 3 1 kg excluding the cable approximately 4 5 kg excluding the cable approximately 2 7 kg excluding the cable approximately 3 2 kg excluding the cable IM 12D08G02 01E 5th Edition Oct 28 2015 00 1 2 2 1 SC8SG Suffix Code lt 1 General gt Model and Suffix Codes Description Conductivity detector Measuring range Low range cell constant 0 01 cm High range cell constant 10 cm Electrode configuration 2 electrode system for both 0 01 cm and 10cm cell constants for general measurements 1 4 electrode system for 10 cm cell constant only for countermeasures against polarization due to contamination 2 Screw in type Flow through type C7 Construction with welding socket 3 without welding soket a welding socket K9208BK should be ordered separately Rc1 2 female threaded chamber material SCS14 Rc1 2
19. e of Sample Solution No particular limitation applies although a value of less than 20 L min is recommended for Flow through detectors Note No limitation applies to flow rate flow velocity as far as measurement is concerned Take care however when using Flow through detectors Electrodes or the inner walls of a liquid chamber may wear put drastically at higher flow speeds if a measured solution contains slurry Air bubbles should not be mixed in the sample solutions to obtain correct measured values RTD for Temperature Compensation Pt1000 built into the sensor Construction Screw in type or Flow through types Rainproof encapsulation compatible with the JIS C0920 Japanese Industrial Standard Installation Screw in type held by the process piping Flow through type polypropylene chamber mounted on a pipe nominal diameter of 50 mm 2 in Flow through type SCS14 chamber held by the process piping Process Connection Screw in or Flow through Construction of Wetted Part Sensor holding base Stainless steel 316 SS and Fluoro rubber when using Screw in type holder or the chamber made of stainless steel PP and Fluoro rubber when using the chamber made of PP 0 01 cm cell constant two electrode sensor Stainless steel 316 SS and ethylene chloride trifluoride 10 cm cell constant two electrode sensor reinforced epoxy resin and graphite 10 cm cell constant four electrode sensor polyvinylidene
20. easurement for reference temperature conversion Screw in type detector Flow through type detector Pin terminals Pin terminals E Fork terminals Ring terrninals The figure shows a detector with a polypropylene chamber flange connection L Nya 32 trn Q383 91 NUD BE ni KE Fork terrninals Ring terrninals The figure shows a detector with a four electrode sensor of cell constant 10 cm FO1 1 ai Figure 1 1 External Views of SC8SG Conductivity Detectors IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 1 General gt 1 2 1 2 Specifications 1 2 1 Standard Specifications Cable with pin terminals applicable to FLXA202 FLXA21 SC202G and SC202SJ Cable with M3 ring terminals applicable to SC450G Cable with M4 ring terminals applicable to FLXA202 FLXA21 Object of measurement Conductivity of solutions Measuring principle 2 electrode system or 4 electrode system Cell Constants 0 01 cm or 10 cm for two electrode system 10 cm for four electrode system Measuring Ranges 0 0 5 uS cm to 0 100 uS cm for a cell constant of 0 01 cm 0 1 mS cm to 0 1000 mS cm for a cell constant of 10 cm Temperature Range 0 to 100 C 130 C maximum only for 0 01 cm cell constant detectors excluding those with polypropylene chambers Pressure 1000 kPa max 500 kPa maximum for detectors with polypropylene chambers Flow rat
21. eratures and where suspended solids etc that may contaminate the detector are low levels but also for measuring the conductivity of solutions under bad conditions such as high temperature solutions or those containing corrosive or suspended solids that may adhere to and contaminate the detector When used to measure general solutions this detector permits maintenance free operation for extended periods However for measurement of solutions under bad conditions periodic inspection and maintenance e g detector cleaning is required to maintain measurement accuracy The interval for inspection and maintenance as described below should be determined according to the characteristics of the measured solutions Cleaning the Detector Guidelines for Cleaning Detector contamination tends to encourage electrode polarization and result in inaccurate measurements If you find that detector contamination is affecting measurement accuracy clean the detector You should determine the optimum maintenance interval so that maintenance is cost effective Guidelines for cleaning detectors are given below For detectors with cell constant of 0 01 cm used for measuring low conductivities up to 100 uS cm such low conductivities mean that the amount of impurities in measured solutions is not likely to be a problem Therefore detector cleaning is not likely to be required for intervals of a year or more For two electrode detectors with cell constant of 10
22. female threaded chamber material PP 1 2NPT female threaded chamber material SCS14 1 2NPT female threaded chamber material PP JIS 10K 15 RF flange chamber material SCS14 JIS 10K 15 FF flange chamber material PP ANSI Class150 1 2 RF flange with serration chamber material SCS14 ANSI Class150 1 2 FF flange chamber material PP Cable length 5 5 m special cable supplied with detector pin terminals 10 m special cable supplied with detector pin terminals 20 m special cable supplied with detector pin terminals 4 5 5 m special cable supplied with detector fork terminal 10 m special cable supplied with detector fork terminal 20 m special cable supplied with detector fork terminal 4 5 5 m special cable supplied with detector M4 ring terminal 5 10 m special cable supplied with detector M4 ring terminal 5 20 m special cable supplied with detector M4 ring terminal 5 5 5 m special cable supplied with detector M3 ring terminal 6 6 6 10 m special cable supplied with detector M3 ring terminal 20 m special cable supplied with detector M3 ring terminal Style code StyleA Option Stainless Steel Mounting hardware for PP chamber Stainless Steel Mounting hardware for SCS14 chamber 4 The cell constant is 0 01 cm when the combiration of measuring range R31 and Electrode configuration T is chosen The cell constant is 10 cm
23. k that detector cable connections are correct e Check that calibration can be performed without any problems e Check that the sensor cable connector is secured with the associated locknut e Check that the detector cable is appropriately protected from damage e Check that the detector cable length is appropriate Piping and detector installation conditions e Confirm that temperature and corrosion resistance of piping materials is appropriate for the solution s to be measured e Checkthatthe solution level reaches the measured solution outlet when the flow of measured solution is started e Checkthatthe measured solution outlet of the detector is oriented to point to the downstream side of the piping e Checkthatthe detector can be readily removed for maintenance 4 1 2 Flowing Measured solution Check that there are no problems in flowing the measured solution e Check piping connections for measured solution leaks e Check that pressure and temperature are within the permitted operating ranges 4 1 3 Checking Operation After setting the operating parameters and calibrating run the conductivity measuring system and check that measurements are normal e Check whether bubbles in the measured solution are affecting measurement stability and accuracy e Check whether there are rapid changes in solution temperature which may affect accuracy of reference temperature converted conductivity measurement HUN NOTE If there any pr
24. l 316 SS When screwed sockets are used drill an Rc1 1 2 or 1 1 2 NPT thread 054 Pp 7 Hexagonal Part Position of Standard Example of an insertion port provided in a small pipe Diameter K9208BH threaded socket T R 1 1 2 a approx 13 Material 14 SS Pipe Thread K9208BJ threaded socket T 1 1 2 NPT a approx 11 Material 14 SS F0303 ai Figure 3 3 Dimensions of Insertion Holes and Sockets 2 Flow through detector Mounting of flow through type detectors depends on chamber material In general this type of detector is mounted vertically so that the measured solution inlet is horizontal or oriented downwards Note The flow through detector may also be mounted either on a slant or horizontally but the measured solution outlet should be oriented to point upwards Installation conditions for the flow through detector e The installation location should be chosen so that the sampling pipe is short Note Ifthe sampling pipe is long rapid fluctuations in the conductivity of the process solution may not be detected in the measured value Detector installation requirements a When a stainless steel SCS14 chamber is used Basically the detector should be supported by the connecting pipes Install the detector when the sampling pipes are installed refer to Section 3 2 b When a polypropylene chamber is used Install the detector on a pipe of nominal size 50 mm outer diameter 60 5 mm or on a
25. lerated if solution at high temperatures over 100 C are measured The O ring should be periodically replaced regardless of whether its sealing effect appears to have deteriorated Caution Corrective action to be taken if any problems arise If the converter detects an abnormality in the detector it outputs a FAIL signal to alert the user In this case refer to the separate User s Manual for the corrective to be taken IM 12D08G02 01E 5th Edition Oct 28 2015 00 Customer Maintenance Parts List Model SC8SG EXA su Conductivity Detector SC8SG Ro1 o 100 Screw in Type Fork shaped Pin shaped Ring shaped Item Part No 1 E 2 K9208BP 3 K9208BL 4 G9303EB 5 K9208BK 6 K9208BA K9208BC K9208BD K9208BA K9208BC K9208BD Qty Description Cable Assembly See MS code of WU41 Lock Nut Washer O ring Socket ana 1 Sensor Cell Constant 0 01 cm 2 electrode type Cell Constant 10 cm 2 electrode type Cell Constant 10 cm 4 electrode type All Rights Reserved Copyright O 2010 Yokogawa Electric Corporation CMPL 12D08G02 01E YOKOGAWA Subject to change without notice 5th Edition May 2011 YK Yokogawa Electric Corporation SC8SG Ro1 a 305 Flow through Type SCS14 Pin shaped Fork shaped Ring shaped Pin shaped Fork shaped Ring shaped BO Ne u ae Fl
26. nation We can assume that the electrode contamination will be similar to the condition of the outer circumference of the probe and perform the cleaning procedure below to remove the dirt Do not use a hard brush to clean the inside of the probe or the electrodes may be damaged Use a soft cotton tipped swab for cleaning After completing the cleaning rinse the detectors in water General contamination Wash out the contamination with warm water in which neutral detergent is dissolved Chemical contamination including lime hydroxide etc Use a 5 to 10 dilute hydrochloric acid solution to remove chemical contamination Take special care that hydrochloric acid dose not get on your body or clothes during cleaning work Contamination due to organic constituents such as oil fat etc Use acetone for cleaning Contamination due to algae microbes molds etc Use chlorinated solvent bleach N WARNING Use of chlorinated solvent bleach Do not mix hydrochloric acid with chlorinated solvents bleach otherwise toxic chlorine gas may be generated When using cleaning agents be sure to observe the warnings on the containers etc 5 2 Inspection of O ring Sealing In cases where pressurized solution is measured the solution may leak if the detector O ring seal is damaged When removing the detector for maintenance be sure to check that the O ring in the socket is normal O ring degradation or deformation will be acce
27. oblems with measurement accuracy try slowing down the flow velocity changing the measurement point and also avoid mixing solutions with different temperatures IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 4 Operation gt 4 2 4 2 Steady State Operation In steady state operation perform periodical calibrations using standard solutions to maintain the measurement accuracy For details of checks and maintenance to be performed during steady state operation refer to the separate converter User s Manual Note When the measured solution is free of contaminants the SC8SG detector can operate without maintenance for extended periods of time usually one year or so 4 2 1 If any problem arises during operation If the converter detects any problem in the detector system it outputs a FAIL contact signal If any problem is found refer to the separate converter User s Manual and promptly take corrective action 4 2 2 Cautions When Stopping or Resuming Operation If the detector is stored in the atmosphere for a long time after its operation has been suspended wash off contamination from the detector When resuming detector operation perform calibration using standard solutions IM 12D08G02 01E 5th Edition Oct 28 2015 00 5 5 1 5 1 1 5 1 2 lt 5 Inspection and Maintenance gt 5 1 Inspection and Maintenance The SC8SG Conductivity Detector can be used not only for measuring general solutions at normal temp
28. ocedures are described below 1 Screw in type detector The detector electrodes are mounted on the probe inner circumference and conductivity measurement is performed for solutions flowing through the inside see Figure 2 1 So when using the Screw in type detector you need to give due consideration to solution flow inside the probe and give special consideration to installation location when prompt response to changes in conductivity is required Installation conditions for the Screw in type detector e The measured solution outlet in the detector probe is immersed in the measured solution In addition there should be no bubbles at the measurement point e In general the tip of the detector probe should be oriented to upstream of the flow NOTE A two electrode detector with cell constant of 10 cm can also be installed perpendicular to the solution flow In addition if the speed of response is not so important because conductivity value and temperature change gradually there is no restriction on detector mounting position IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 3 Installation Piping and Wiring gt 3 2 Flow of measured solution F0301 ai 4 I t 4 A two electrode detector with a cell constant of 0 01 cm should be installed in positions A above A two electrode detector with a cell constant of 10 cm should be installed in positions A or B above A four electrode detector with a cell constant
29. of these units comes with an instruction manual so read the applicable manuals for details of the units concerned Model Users manual Manualnumber FLXA202 FLXA21 2 Wire Liquid Analyzer IM 12A01A02 01E SC402G Conductivity and Resistivity Converter IM 12D08N04 01E SC450G Conductivity and Resistivity Converter IM 12D08N05 01E SC202G E te SC202SJ 2 Wire Conductivity Transmitter IM 12D08B02 01E Upon delivery unpack the instrument carefully and inspect it to ensure that it was not damaged during shipment If damage is found retain the original packing materials including the outer box and then immediately notify the carrier and the relevant YOKOGAWA sales office Make sure the model code on the label agrees with your order For the meaning of the model code refer to the Model and Suffix code table see subsection 1 2 2 Media No IM 12D08G02 01E 5th Edition Oct 2015 YK IM 12D08G02 01E 5th Edition Oct 28 2015 00 All Rights Reserved Copyright O 2004 Yokogawa Electric Corporation lt Introduction gt Il For the safe use of this equipment m Safety Protection and Modification of the Product In order to protect the system controlled by the product and the product itself and ensure safe operation observe the safety precautions described in this user s manual We assume no liability for safety if users fail to observe these instructions when operating the product If this instrument is used in a manner not
30. or requires calibration The detector should be easy to remove for calibration and maintenance e Cabling should not touch any pipes or the like that may get hotter than 50 C Procedures for laying detector cables First check that the inside of the connector is not wet Then connect cables to the detector After connecting tighten the connector locknut completely to maintain rainproofness Note The resistance value between cable cores 11 12 and 13 14 11 12 and 15 16 and 13 14 and 15 16 usually should be at least 2 MO Connect other end of the detector cable to the converter terminals Check the marking on cable cores and connect each core to the corresponding converter terminal Note For more details on converter wiring including the converter cable entry port refer to the separate converter user s manual Conductivity Converter Electrodes Connector 1 F0308 ai Conductivity Detector Figure 3 8 Connecting Detector Cable IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 4 Operation gt 4 1 4 Operation Check that the conductivity measuring system is operating correctly and providing appropriate measurements Then place the system in steady operation For converter operating instruction refer to the separate converter User s Manual This chapter provides operating instructions for detectors 4 1 Preparation for Operation 4 1 1 Checking Piping and Wiring Checking Wiring Chec
31. or 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 B 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 Failure caused by usage of software hardware or auxiliary equipment which Yokogawa Electric did not supply Failure due to improper or insufficient maintenance by user Failure due to modification misuse or outside of specifications operation which Yokogawa does not authorize Failure due to power supply voltage frequency being outside specifications or abnormal Failure caused by any usage out of scope of recommended usage Any damage from fire earthquake storms and floods lightning disturbances riots warfare radiation and other natural changes B 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 B Yokogawa Electric will not bear responsibility when the user configures the product into systems or resells the product B Maintenance service and supplying repair parts will be covered for five years after the production ends For repair for this
32. plate When the detector is mounted on a pipe fasten the detector to the mounting pipe with a U shaped bolt Install the pipe either vertically or horizontally When the detector is mounted on a plate remove the pipe mounting bracket from the detector and fix the detector to the mounting plate with two M8 screws Drill two 9 mm dia holes in the mounting plate as shown in Figure 3 4 IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 3 Installation Piping and Wiring gt 3 4 Two 9 mm Dia Holes Unit mm Bracket Mounting Screw four Mounting Bracket 3 2 mm thick M8 Screws two 14 mm long i Washers two Location of Measured Solution Outlet The measured solution outlet can be positioned on the left as shown in Figure 3 4 on the right forwards or backwards To change the position loosen the bracket mounting screw If the measured solution outlet is positioned backwards place the bracket upside down For flange connected detectors note the position and shape of the mounting plate 60 Two M8 Screw Holes Note M8 screw are positioned 35 mm below the top of the mounting bracket F0304 ai Figure 3 4 Hole Drilling for Plate Mounting 3 1 2 Detector Installation A Screw in type detector is attached to the socket provided on the detector insertion port see Figure 3 2 Be sure that the O ring is installed in the socket and tighten the fixing nut firmly mark sure that the measured solution o
33. sured solution take special care in selecting sealing parts such as gaskets and the like with corrosion resistance e Ifthe detector is mounted on and supported by the piping it is likely that force may be applied to the piping during detector maintenance To avoid this provide a support adjacent to the detector and fix the piping to the support e f slurries are likely to accumulate in the solution chamber provide an appropriate drain connection in the measured solution inlet For safety during maintenance e Provide a stop valve to prevent the measured solution from running out ofthe detector insertion section when the detector is removed for inspection or maintenance IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 3 Installation Piping and Wiring gt 3 8 3 3 Wiring 5 5 m 10 m or 20 m long detector cables are supplied with the conductivity detector according to the customer s specifications Connect the detector cables to the converter terminals see Figure 3 8 3 3 1 Detector Cable Specifications Cable length 5 5 meters suffix code L11 10 meters suffix code L12 20 meters suffix code 13 Cable outside diameter Approximately 9 5 mm Maximum cable temperature 50 C Terminal treatment Detector Use a rain proof connector with locknut Converter Pin shaped fork shaped or ring shaped terminals 3 3 2 Laying Detector Cables Notes for laying detector cables e The conductivity detect
34. t of the product that YOKOGAWA can not predict in advance IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt Introduction gt I B Symbol Marks Throughout this user s manual you will find several different types of symbols are used to identify different sections of text This section describes these icons N WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury DM CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices A IMPORTANT Indicates that operating the hardware or software in this manner may damage it or lead to system failure HUN NOTE Draws attention to information essential for understanding the operation and features IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt Introduction gt iv After sales Warranty B Do not modify the product B During the warranty period for repair under warranty consult the local sales representative or service office Yokogawa will replace or repair any damaged parts Before consulting 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 If we replace the product with a new one we won t provide you with a repair report Yokogawa warrants the product f
35. utlet points to the downstream side of the measured solution flow as indicated by the arrow mark A flow through type detector with polypropylene chamber material should be mounted securely on its mounting pipe in the predetermined position A flow through type detector with a 14 SS stainless steel chamber should be installed at the same time as sampling pipes are installed IM 12D08G02 01E 5th Edition Oct 28 2015 00 lt 3 Installation Piping and Wiring gt 3 5 3 2 Piping When using a flow through type detector make a sampling piping connection to flow the process solution into the detector This section describes the procedures for sampling pipe connection When connecting flow through detectors directly on the process piping follow the instruction in the section 3 2 1 Piping Materials When flow through detectors are screw connected an Rc 1 2 or 1 2 NPT thread female connection is provided For flange connected detectors when the chamber material is polypropylene the provided flange may be JIS 10K 15 FF equivalent or ANSI Class150 1 2 FF and when the chamber material is SCS14 the provided flange may be JIS 10K 15 RF or ANSI Class150 1 2 RF with serrations Use the following piping materials for piping connected to the detector Select piping joints appropriate for the piping materials used For polypropylene chambers e Hard polyvinyl chloride pipe JISK 6741 nominal diameter 16 mm e polypropylene pipe nominal diameter 1
36. wn in the figure uses a stainless steel Screw connection chamber Cell constant label IM 12D08G02 01E Washer O ring Socket screw into chamber Outlet for measured solution Liquid chamber Stainless steel or polypropylene chambers may be specified Screwed or flange connections may be specified for pipe connections Note Electrodes are connected together e Detector two electrode system with cell constant of 10 cm F0201 ai Components of the SC8SG Conductivity Detector and Their Functions 5th Edition Oct 28 2015 00 3 3 1 lt 3 Installation Piping and Wiring gt 3 1 Installation Piping and Wiring Installation A IMPORTANT 3 1 1 When ultra pure water flows through plastic pipe electrostatic charge may be produced When the sensor is installed on this plastic pipe the electrostatic charge goes through the sensor and into a converter circuit This electrostatic charge will discharge and damage electronic parts on the converter circuit Preparation for Detector Installation Mounting the detector varies with its construction The Screw in type detector is mounted directly to the detector insertion port on the process piping while the flow through type detector is mounted on a 2 inch pipe O D 60 5 mm or on a wall and the measured solution flow to the detector via user provided sampling piping In either case provide appropriate mounting hardware for detector Mounting pr
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