YOKOGAWA Exaxt450 User Manual Download Page 61 | Manualshive

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IM 12D08N05-01E

6-3

<6. CALIBRATION>

• Polarization shows as a low side error at higher conductivity

• A dirty sensor will often read perfectly at low conductivity

• Wet calibration tests are best done towards the top of a sensor’s range

• If the system responds correctly to the highest trip point, all is well

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Summary of Contents for Exaxt450

Page 1: ...User s Manual IM 12D08N05 01E 5th Edition Model SC450G Conductivity Converter Style S2...

Page 2: ...be referred to when reading pages where subsequent submenu screens are shown in the text Connection to the relevant submenu screen is indicated by a dotted line with an arrow Note that screens in the...

Page 3: ...ged by electrostatic discharge When servicing this equipment please observe proper procedures to prevent such damage Replacement components should be shipped in conductive packaging Repair work should...

Page 4: ...any change of specification construction or parts when the change does not affect the functions or performance of the product If the product is not used in a manner specified in this manual the safet...

Page 5: ...the circumstances of failure Process environmental conditions that may be related to the failure of the device A statement whether warranty or non warranty service is requested Complete shipping and b...

Page 6: ...tor must follow the instructions laid out in this manual in order to avoid the risks for the human body of injury electric shock or fatalities The manual describes what special care the operator must...

Page 7: ...have any questions or you find mistakes or omissions in the user s manuals please contact our sales representative or your local distributor n Drawing Conventions Some drawings may be partially emphas...

Page 8: ...be used by a person with specialized knowledge n How to dispose the batteries This is an explanation about the EU Battery Directive This directive is only valid in the EU Batteries are included in thi...

Page 9: ...2 1 Preparation 3 4 3 2 2 Cables Terminals glands and conduit adapter 3 5 3 3 Wiring the power supply 3 7 3 3 1 General precautions 3 7 3 3 2 Access to terminal and cable entry 3 8 3 3 3 AC power 3 8...

Page 10: ...11 Calibration due at 4 3 4 3 12Projected calibration at 4 3 4 3 13HART ID 4 4 4 3 14Software revision 4 4 4 3 15HART Device revision 4 4 4 3 16Logbook 4 4 4 4 Information function 4 5 4 5 Setup calib...

Page 11: ...nance of the sensor 7 1 7 3 Cleaning methods 7 2 7 4 LCD adjustment 7 2 8 TROUBLESHOOTING 8 1 8 1 Calibration check 8 1 8 2 Polarization check 8 1 8 3 Predictive maintenance 8 2 8 4 Prediction of clea...

Page 12: ...Blank Page...

Page 13: ...ment 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...

Page 14: ...imum of 50 metres 150 feet with a BA10 junction box and up 10 metres standard sensor cable The SC450G is delivered with a general purpose default setting for programmable items see Chapter 5 While thi...

Page 15: ...lowing tolerance is added to above performance mA output tolerance 0 02 mA of 4 20 mA Transmission signals General Two isolated outputs of 4 20 mA DC with common negative Maximum load 600 Bi direction...

Page 16: ...ration and temperature Choice out of 13 preprogrammed matrixes and 2 100 points user programmable matrixes Calibration Semi automatic calibration using pre configured OIML KCl stanard tables with auto...

Page 17: ...al environment Please use this instrument in the industrial environment only RoHS EN 50581 FM nonincendive approval suffix code Type U FM3611 Class I Div 2 Group ABCD T6 for Ta 20 to 55 C Installation...

Page 18: ...g Plate UM U PM H5 AFTG ANSI AM20 SCT Universal mounting kit panel pipe wall Pipe and wall mounting hardware 2 Panel mounting hardware 2 Awning hood stainless steel 2 G1 2 2 1 2NPT 2 M20 2 Stainless s...

Page 19: ...direct environment Access is possible to the cable glands see figure 3 1 The converter is not mounted in direct sunlight or severe weather conditions Maintenance procedures are possible avoiding corro...

Page 20: ...S4 F For power supply Adapter 49 1 93 G1 2 screw AFTG 1 2 NPT screw ANSI M20 screw AM20 Approx 55 2 2 144 5 67 144 5 67 20 0 79 20 0 79 121 5 4 78 24 5 1 Adapter for Conduit Work optional option code...

Page 21: ...mounting diagram Note When option code UM is specified universal pipe wall panel mounting kit are supplied same as option code U and PM both specified 2 ND pipe pipe mounting horizontal pipe mounting...

Page 22: ...nt 3 2 Wiring 3 2 1 Preparation Refer to figure 3 4 The relay contact terminals and power supply connections are under the screening shielding plate These should be connected first Connect the sensor...

Page 23: ...ssed turn off power then on again The screen positioning will be accurate 3 2 2 Cables Terminals glands and conduit adapter SC450G A D A The SC450G is supplied with terminals suitable for the connecti...

Page 24: ...ing Gland Close up plug Contents 6 X Gland M20 6 X Close up plug 6 X Gland nut M20 6 X O ring 17 12 X 2 62 EPDM 70 sh NOTE The glands must be installed properly to meet IP66 and NEMA 4X rating Use clo...

Page 25: ...T GLANDS REAR GLANDS Sensor output signals HART Contact output Contact output Power Contact input mA1 mA2 Figure 3 6 System configuration 3 3 Wiring the power supply 3 3 1 General precautions NOTE Mak...

Page 26: ...nt on the supply to the instrument The 250 VAC fuses should be of the time lag type conforming to IEC127 WARNING Fuse replacement should be performed only by a qualified service personnel See Chapter...

Page 27: ...user and to protect the instrument against interference the housing must always be connected to ground This has to be done by a large area conductor This cable can be fixed to the rear of the housing...

Page 28: ...unit s four contacts switches that can be wired and configured to suit user requirements Contact S4 is programmed as a fail safe contact Please refer to section 5 7 Contact output setup for functional...

Page 29: ...ower standard industry signals to peripherals like control systems or strip chart recorders Figure 3 6 3 5 2 Analog output signals The output signals consist of active current signals of 4 20 mA The m...

Page 30: ...he identification numbers on the cable ends Figure 3 9 Sensor wiring diagrams 3 6 3 Other sensor systems To connect other sensor systems follow the general pattern of the terminal connections as liste...

Page 31: ...13 14 15 16 17 BA10 WF10 EXA CONVERTER 11 12 13 14 15 16 17 Figure 3 10 Connection of WF10 extension cable and BA10 junction box Extension cable may be purchased in bulk quantities or in pre finished...

Page 32: ...IM 12D08N05 01E 3 14 3 INSTALLATION AND WIRING 3 cm heat shrink 9 cm remove insulation Figure 3 11a 3 cm cotton threads Figure 3 11b 11 12 17 15 16 13 14 Figure 3 11c...

Page 33: ...Pressing the button changes the display into a graphical mode in which the average measured value is shown on a time scale The Live value is also digitally displayed in a text box The time scale X axi...

Page 34: ...nformation about the device and lead to logbook data Next Next Next Next Figure 4 3 Detail screen 4 3 1 Actual mA1 The current output in mA of the first current output which is defined as mA1 The rang...

Page 35: ...sation 4 3 7 Temp comp 2 The chosen temperature compensation method for the secondary measurement Note This does not imply two separate measurements There is the possibility to set two separate compen...

Page 36: ...on level is expressed by the first two characters of the filename The following files should be used when the HART Device revision level is 2 0201 aot 0201 fms 0201 imp 0201 sym 4 3 16 Logbook The SC4...

Page 37: ...ess previous events by selecting events page 1 to 10 4 4 Information function In this field an information sign a warning sign or a fail sign can appear Pushing this button the user gets detailed info...

Page 38: ...IM 12D08N05 01E 4 6 4 OPERATION 4 7 Navigation of the menu structure RETURN KEY exit to previous display Main display Primary setup display Commissioning menu display Instrument in HOLD...

Page 39: ...measuring unit is changed parameter of mA output setup and contact output setup will be cleared Set these parameter again refering to subsection 5 6 to 5 7 If you replace the sensor delete the predict...

Page 40: ...must be compensated Normally 25 C 77 F is used therefore this temperature is chosen as default value l Method TC In addition to the temperature coefficient calibration routine it is possible to adjust...

Page 41: ...tivity only Concentration only NOTE Main parameter and or Measure determines the rest of the HMI menu structure Menu Parameter Default values Range min max Configure Sensor Cell constant 0 1 cm 1 0 00...

Page 42: ...its l Stabilization time During calibration the stability of the measurement is constantly monitored When the value is within a bandwidth of 1 over a period of the stabilization time the calibration i...

Page 43: ...ration only Enter Measurement setup Temperature settings Temp Compensation Calibration settings Concentration Measure Conductivity only Configure sensor Menu Parameter Default values Range min max Cal...

Page 44: ...pan Normal span of outputs are limited from 3 8 to 20 5 mA Fail safe Contact S4 is programmed as a fail safe contact Burn Low or High will give an output of 3 6 resp 21 mA in case of Fail situation NO...

Page 45: ...0 100 PID control mA1 Setpoint 250 0 S cm inf inf PID control mA2 Setpoint 25 C F inf inf PID control mA1 Range 50 0 S cm inf inf PID control mA2 Range 10 C F inf inf PID control mA1 Manual Reset 0 0...

Page 46: ...the controller is outside the control range less than 5 or greater than 105 the I part is frozen l Derivative control The control acts on the slope rate of change of the process value thereby minimiz...

Page 47: ...inf inf Range 50 0 S cm inf inf Manual Reset 0 0 100 I time 3600 s 1 s 3600 s D time 0 s 0 s 60 s Duty cycle DC period time 10 s 1 s 1800 s Pulse freq Max pulse freq 70 p min 1 p m 120 p m mA1 simula...

Page 48: ...a percentage of duty cycle can be entered DC period time 6 Off Switch is not used 7 USP USP EU limits for WFI power on power on power down normal opened contact activated S1 S2 S3 S4 Above table show...

Page 49: ...IM 12D08N05 01E 5 11 5 MENU STRUCTURE COMMISSIONING S2 S3 S4 Similar structure to S1 Menu Parameter Default values Range min max Simulation Percentage 50 0 100...

Page 50: ...ulse frequency or duty cycle with small interval times the lifetime of these contact should be observed On Off control is preferred over Pulse duty cycle 5 8 Fail A fail contact is energized when a fa...

Page 51: ...limit exceeded Warn Warn Warn Off Off Enter Errors 2 3 Temperature too high Temperature too low Polarization detect Calibr time exceeded USP limit exceeded Warn Warn Warn Off Off Menu Parameter Defaul...

Page 52: ...ependent of what is being measured The display shows this error when the water quality exceeds the WFI conductivity limits as set in stage 1 2 We have introduced uncompensated conductivity in the DISP...

Page 53: ...IM 12D08N05 01E 5 15 5 MENU STRUCTURE COMMISSIONING Menu Parameter Default values Range Low High HART Network address 0 0 15...

Page 54: ...ed The process variable is not reliable WARN the process variable processes by the converter is still reliable at this moment but maintenance is required in the near future l Flashing Fail flag in mai...

Page 55: ...OMMISSIONING Menu Parameter Default values Range Low High Y axis Conduct low 0 S cm inf inf Conduct high 500 S cm inf inf Conduct 2 low 0 S cm inf inf Conduct 2 high 500 S cm inf inf Temp low 0 C 32 F...

Page 56: ...user defined defaults After a load default the instrument will reset The following parameters are not included in the defaults 1 X axis timing 2 Auto return 10 min disabled 3 Tag 4 Passwords 5 Date a...

Page 57: ...reen Auto return will cause the main display to go to default setting See also 4 6 Secondary to Primary Value display Switch NOTE Configuration possibilities in the main and secondary display lines ar...

Page 58: ...Blank Page...

Page 59: ...r which only the nominal cell constant is known or recalibrate a sensor that has been changed or damaged in the course of operation Choose 1st or 2nd compensation to suit the calibration solution used...

Page 60: ...usted to agree with the reading zero offset calibration only For best accuracy this should be done as near to the normal operating temperature as possible 6 7 Operation of hold function during calibra...

Page 61: ...ws as a low side error at higher conductivity A dirty sensor will often read perfectly at low conductivity Wet calibration tests are best done towards the top of a sensor s range If the system respond...

Page 62: ...Blank Page...

Page 63: ...rt numbers l Battery The SC450G converter contains a logbook feature that uses a clock to provide the timings The instrument contains a lithium cell battery to support the clock function when the powe...

Page 64: ...display may fade The contrast can be adjusted using the potentiometer on the backside of the LCD board This adjustment must be done only by Yokogawa s service personnel The position is shown on the pi...

Page 65: ...e checked l For FAIL when the diagnostics have confirmed a problem and the system must be checked This button gives access to a status report page where The most applicable error will be displayed No...

Page 66: ...iagnostic tool The significance of this error message is to require the user to improve his calibration technique Typical causes for this error are attempting to calibrate dirty sensors calibration so...

Page 67: ...function based on a Sodium Chloride solution This is suitable for many applications and is compatible with the NaCl compensation functions of typical laboratory or portable instruments SC temperature...

Page 68: ...T2 Tref K2 T1 Tref K1 K2 K ref 1 T1 Tref 1 T2 Tref K1 1 T2 Tref K2 1 T1 Tref K1 T2 Tref K2 T1 Tref K2 K1 Where T1 T2 liquid temperature C K1 conductivity at T1 C K2 conductivity at T2 C Figure 1 Condu...

Page 69: ...range SC450G will do the rest By following the routing Commissioning Measurement setup Temp compensation Matrix you gain access to the Matrix selection area Matrices are available for the common mine...

Page 70: ...hat is entered the following values become mandatory to enter Cx SxTr SxT1 SxT10 and Tx Concent Tref T1 Tx T10 Sol1 C1 S1Tr S1T1 S1T10 Solx Cx SxTr SxT1 SxTx SxT10 Sol10 C10 S10Tr S10T1 S10T10 The mat...

Page 71: ...o 0 7 up to a conductivity of 500 S cm At a conductance of approximately 3000 S cm the range would be from 0 5 and 1 0 The SC450G measures conductivity This value can be used to display TDS values on...

Page 72: ...is better A slightly contaminated sensor may read perfectly at lower conductivity but show significant errors at higher values This is caused by the early onset of polarization the factor that limits...

Page 73: ...e sensor This sensor is the first choice for pure and ultra pure water measurements From 0 055 S cm up to 100 S cm this is a perfect choice The measuring range extends to at least 1000 S cm but there...

Page 74: ...4 cc 10 cm 1 2 electrode sensor This sensor is in the program for historical reasons It makes little sense to select this sensor for new applications It was used mostly for process water and light pro...

Page 75: ...nt X X is mentioned on the text plate of the sensor SC210G When the nominal cell constant is 5 cm 1 and the deviation CORR 1 1 is mentioned The cell constant to be entered is calculated as follows 5 5...

Page 76: ...c Zoom device Serial number 1 Software Revision Device Revision DD Revision Logbook Sensor data Calibration Sensor Pred Maint Output data Settings mA1 mA2 S1 S2 S3 S4 Most appl Error Calibration Error...

Page 77: ...to mA1 Type control func Process parameter PID SP PID Rng PID dir PID MR PID I time PID D time Burn Expiry time Type output func Process parameter Lin 0 Lin 100 Burn Damping time Type simulate func S...

Page 78: ...g Distributor Model Device information Date Descriptor Message Poll addr Num resp preams Review Model Distributor Write protect Manufacturer Dev id Tag Descriptor Message Date Universal rev Fld dev re...

Page 79: ...IM 12D08N05 01E APP 13 APPENDIXES Appendix 7 Control drawing for FM approval...

Page 80: ...Blank Page...

Page 81: ...le assembly shield 6a A1108EF 1 Fuse AC version 1 pcs 6b A1111EF 1 Fuse DC version 1 pcs 7 K9676BE 1 Cover assembly without screws and hinge pins 8 K9676BU 1 Cable glands assembly 6 pcs M20 9 K9676DL...

Page 82: ...ing Hardware Option code PM Item Part No Qty Description 1 K9171SS 1 Mounting Set U 2 Y9608KU 4 Screw 3 D0117XL A 1 U Bolt Assembly 4 K9171SY 1 Plate 5 K9171SX 1 Bracket 6 K9171ST 1 Mounting Set PM 7...

Page 83: ...ed and changed because external dimensions for awning hood H5 conduit adapter AFTG ANSI AM20 added p7 Figure 3 4 title modified p8 conduit adapter work added to subsection 3 2 2 p9 to 11 Layout change...

Page 84: ...IM 12D08N05 01E ii n Published by Yokogawa Electric Corporation 2 9 32 Nakacho Musashino shi Tokyo 180 8750 JAPAN http www yokogawa co jp an n Printed by KOHOKU PUBLISHING PRINTING INC...

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