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Manual - Applied Measurement and Control

1. 162 6 4 min 203 min 8 0 0 1 18 EE 30 1 2 ae cie ES 2x 04 0 16 dr SPACING PANEL 40 N CUT OUT DIMENSION CUT OUT DIMENSIONS M6 bolts 2x Fig 3 1 Housing dimensions and layout of Fig 3 2 Panel mounting diagram glands IM 12D7B3 E E Installation and wiring 3 2 wall mounting pipe mounting pipe mounting vertical horizontal A 2x 96 5 0 26 d E 9 4x 010 0 4 S 1 4 m 115 4 5 i CN 2 ND pipe OPTION U Universal pipe wall mounting Figure 3 3 Wall and pipe mounting diagram Figure 3 4 Internal view of EXA wiring compartment IM 12D7B3 E E 3 3 Installation and wiring mA 3 2 Preparation Refer to figure 3 4 The power output connections and the sensor connections should be made in accordance with the diagram on page 3 6 The terminals are of a plug in style for ease of mounting To open the EXA 202 for wiring Loosen the four frontplate screws and remove the cover The terminal strip is now visible Connect the power supply Use the gland on the left for this cable Connect the sensor input using the gland on the right see fig 3 5 Switch on the power Commission the instrument as required or use the default settings Repl
2. Primary choices default alternatives reference on page menu Measurement Conductivity Resistivity 5 8 5 9 SC 01 Range 0 1000 uS cm max 1999 mS C 5 3 range Temperature unit Celsius Fahrenheit 5 10 511 5 11 Sensor Cell constant 0 1 cm any value between 0 08 and 50 5 8 5 9 6 1 6 3 SC 03 Sensor type 2 electrode 4 electrode 5 8 5 9 SC 02 Temperature compensator Pt1000 Ni100 Pt100 8k55 Pb36 5 10 5 11 SC 10 Choices Communication enabled disable HART PH201 B 5 19 SC 60 62 Burn out inactive HI or LO output on fail 5 14 5 15 SC 32 Temperature compensation NaCl in water 1 fixed T C matrix 5 12 518 55 SC 20 28 temp USP functionality inactive Fail if USP limits are 9 1 9 2 5 17 SC 57 exceeded HOLD during maintenance inactive HOLD last value or fixed value 5 17 5 3 5 4 hold SC 50 Calibration temperature inactive adjustment 15 C 5 11 SC 12 ZERO calibration inactive adjustment 1 uS cm 5 9 SC 04 Diagnostics hard alarm on hard or soft choices 5 17 SC 53 all errors Cell fouling alarm active except E13 inactive 5 9 SC 05 Password protection inactive password for different levels 5 17 SC 52 Output in Concentration units inactive linearization of output w 5 14 5 17 SC 31 35 55 on LCD In this manual a sign appears if it concerns the SC202G J A and SC202S A N IM 12D7B3 E E 1 1 Introduction 1 INTRODUCTION AND GENERAL DESCRIPTION The Yokogawa EXA 2
3. Code Display Function Function detail x z Default values mA Outputs 30 Not used 31 OUTP F mA output functions Linear 0 Linear Table 1 32 BURN Burn function No burnout 0 No Burn Burnout downscale 1 Burnout upscale 2 Pulse burnout 3 33 34 Not used 35 TABLE Output table for mA 096 Linearization table for mA in 596 steps 596 The measured value is set in the main 10 display using the gt ENT keys for each of the 5 interval steps a Where a value is not known that value may 9596 be skipped and a linear interpolation will 10096 take place 36 39 Not used IM 12D7B3 E E 5 16 Service coded settings 5 6 User interface Code 50 Code 52 Code 53 Code 54 Code 55 Code 56 Code 57 RET PASS ErrO1 E5 LIM amp E6 LIM DISP USP IM 12D7B3 E E When Auto return is enabled the transmitter reverts to the measuring mode from anywhere in the configuration menus when no button is pressed during the set time interval of 10 minutes Passcodes can be set on any or all of the access levels to restrict access to the instrument configuration Error message configuration Two different types of failure mode can be set Hard fail gives a steady FAIL flag in the display A fail signal is transmitted on the mA output when enabled in code 32 Soft fail gives a flashing FAIL flag in the display A good example is the dry sensor
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8. 4 4 Operation 4 5 Display functions Sequence for resistivity function is similar to this conductivity example Actual cell constant gt YES See Calibration menu Chapter 6 Reference i w temperature H Li L uS cm Software release NO number b n m DISP 1 ____ 11 uS cm 2 REL IH YES NO gt Temperature compensation gt A ENT C O CoD CC EXA YOKOGAWA 111 HS cm YES LiL HS cm YOX d 4 5p AER NO Nal NO NO h A Yos LICI Z LILI CI 1 L LL ves L LL ww L LL 119 d YEs NO gt LH 5 YES NO gt 9 YES NO NO se Es compensated LINO value Process gt h EN LICI Z tempe LCI Z ILI Lam HS cm rature 111 YES See Hold Pi HUL J gt 5 5 Chapter 5 1 2591 NO Uncompenaated it V No seks Lt El L L o HOLD MODE V weem FI C HEg LI LI LI Ele SURE OUTPUT Current p gt x t 3
9. User s Model SC202G S Manual Conductivity and Resistivity Transmitter YOKOGAWA 4 IM 12D7B3 E E 10th Edition TABLE OF CONTENTS PREFACE CONFIGURATION CHECKLIST FOR SC202 1 INTRODUCTION AND GENERAL DESCRIPTION seem 1 1 1 1 Instrument CHECK niire osni usei Sahanaya Qu Rd AE araya EN 1 1 T2 o z 00627 00 0000000000 0000000000 0000000000 1 2 2 SC202 e ei ug el LEET 2 1 EE RT ee EE 2 1 Re Ee e Be le er 2 2 2 93 Model ziqf SUM dl oo s r nan 0000098000 0000000000 2 3 2 4 Intrinsic safety common specifications n nr 2 3 2 5 Connection diagram for power supply uq sine anaiai enema 2 4 3 INSTALLATION AND WIRINGQa nn eem eene ener eene nnns 3 1 Geck Installation arid GIMENSIONS iis stro sade Cip re te sa aaa NEZ Ye do PUR 3 1 353 1 Installati t1 SIt6 u neret ba a eet saves tud Rd au 3 1 82422 MOUNTING IG IS 5 u ET 3 1 3 2 PreparatiOn seet eege 3 3 872 gt 1 Cables terminals ap ia YARD 3 3 6 WINING Of occ EE 3 4 8 3 1 General is izl s Ul o qir 3 4 8 3 2 Additional precautions for installations in hazardous areas Intrinsic safe 3 4 3 3 3 Hazardous Area Non Incendive SC202S N a 3 5 Eglise ee 3
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11. C 100 C Code 24 Solution 1 1 14 31 mS cm 53 mS cm 76 mS cm 98 mS cm 119 mS cm Code 25 Solution 2 3 L2 86 mS cm 145 mS cm 207 mS cm 264 mS cm 318 mS cm Code 26 Solution 3 6 L3 146 mS cm 256 mS cm 368 mS cm 473 mS cm 575 mS cm Code 27 Solution 4 10 L4 195 mS cm 359 mS cm 528 mS cm 692 mS cm 847 mS cm Code 28 Solution 5 15 L5 215 mS cm 412 mS cm 647 mS cm 897 mS cm 1134 mS cm IM 12D7B3 E E Parameter setting 5 13 Code Display Function Function detail X Default values Temperature compensation functions 20 T R C Set reference temp Use ENT keys to set value 25 C 21 T C 1 Set temp coef 1 Adjust compensation factor 2 1 96 if set to TC in section 5 2 5 per C Set value with gt ENT keys 22 Set temp coef 2 Adjust compensation factor 2 1 if set to TC in section 5 2 5 per C Set value with gt 4 ENT keys 22 MATRX Select matrix Choose matrix if set to matrix comp in section 5 2 5 using gt ENT keys HCI cation pure water 0 80 C 1 1 HCl Ammonia pure water 0 80 C 2 orpholine pure water 0 80 C 3 HCI 0 5 96 0 60 C 4 NaOH 0 5 96 0 100 C 5 User programmable matrix 9 23 SIT 26 EF Set temp range Enter 1st lowest matrix temp value ES Enter 2nd matrix temp value TS Enter 3rd matrix temp value 14 Enter 4th matrix temp value TSi Enter 5th highest matrix temp value 24 L1xT1 Enter
12. F will not damage the instrument specification maybe adversely affected Drift lt 500 ppm C C Storage temperature 30 to 70 C 20 to 160 F D Humidity 10 to 90 RH non condensing HART specification Min cable diameter 0 51 mm 24 AWG Max cable length 1500 m Detailed information can be found at www hartcomm org Cast aluminium case with chemically resistant coating cover with flexible polycarbonate window Case color is off white and cover is moss green Cable entry is via two 1 polyamide glands Cable terminals are provided for up to 2 5 mm finished wires Weather resistant to IP65 and NEMA 4X standards Pipe wall or panel mounting using optional hardware F Housing 2 3 Model and suffix codes G Data protection H Watchdog timer Specifications 2 2 EEPROM for configuration and logbook and lithium battery for clock Checks microprocessor L Automatic safeguard Return to measuring mode when no keystroke is made for 10 min J Operation protection 3 digit programmable password K Regulatory compliance EMC Emmission Immunity L Intrinsic safety ATEX Edmo CSA FM APPROVED M Non Incendive FM APPROVED CSA b ATEX 2 N DD specification meets council directive 89 336 EEC meets EN 55022 Class A meets EN 61000 6 2 EEx ib ia IIC T4 for Ta 10 to 55 C EEx ib ia IIC T6 for Ta 10 to 40 C KEMA O
13. HW 00Z 07 eouejonpul uunulxelA Ju 01202 eouejoedeo eujejxe pewoj e WNWIXEN vul g Z 0 Wan indino unullxeiy At pof eBeyo indino lnullxeyy 1104 0549 9 Z I71 eouejnpu eAn99j3 4d 6 10 eouejoedeo eujejul 2 M ZE Seid Jewod ndul uinuurxelA Vui 088 ll jueuno yndul vlnullxeyy A S LL IN eBe3oA indul winwixey M Z L d indui ulnullxeyy yw 092 1 3ueuno indui wnwIxeN eDeyo jndui wnwixey ejmnsuj uone duiejs Auedwog dul gynoun jndjno pue Addne 4 820209 8 4 920209 VX3 94 ejep e2uj 9 3 FL00S NA 9uijo L esnejo uy Ajduioo U9IUM snyesedde ejduuis se eq o d ewssed e jo eue s josues eae snopJezeH 40 0 euoz euoz MZE S Id AZI zid Vu 086 Ww 092 l AGLL IN 40 Ave n AL 6 5 10 pL X 6901X311V00 ou sie ou el q x33 OL 5 duejuequie 104 9 4 820208 9 suono uuoo 3 820208 Josuag I vxa eoeyejul snjeseddy euples 51 eae age s Jojeuluu IM 12D7B3 E E ease SnopJezeu 3y ui UDO eAipueour uou au uo pesn sil eseo ui d4 eAipueour uou p y VSO e Jo JO eae snopJezeu y l PNOO ejes Ajeorsunmul u uo pesn s ji eseo ul adh ejes ileolsulnul Dale WSO e Jo eq JSNW Jojeoiunuluo
14. block of 3 1544 10 Housing K1542JL 34 Gland set one gland including seal and backing nut K1500AU Options U Pipe and wall mounting hardware K1542KW SCT Stainless steel tag plate K1544ST H Hood for sun protection K1542KG Fig 10 1 Exploded view IM 12D7B3 E E 11 APPENDIX EIN 11 1 User setting for non linear output table code 31and 35 Appendix 11 1 Output signal value mA Output 4 20 0 4 5 4 8 10 5 6 15 6 4 20 7 2 25 8 30 8 8 35 9 6 40 10 4 45 11 2 50 12 55 12 8 60 13 6 65 14 4 70 15 2 75 16 80 16 8 85 17 6 90 18 4 95 19 2 100 20 0 11 2 User entered matrix data code 23 to 28 Medium T1 data T2 data T3 data T4 data T5 data Code 23 Temperature Pl E Code 24 Solution 1 L1 Code 25 Solution 2 L2 Code 26 Solution 3 L3 Code 27 Solution 4 L4 Code 28 Solution 5 L5 Medium T1 data T2 data T3 data T4 data T5 data Code 23 Temperature T1 T5 Code 24 Solution 1 L1 Code 25 Solution 2 L2 Code 26 Solution 3 L3 Code 27 Solution 4 L4 Code 28 Solution 5 L5 IM 12D7B3 E E 11 2 Appendix 11 3 Matrix data table user selectable in code 22 Matrix Solution Temp C Data 1 Data 2 Data 3 Data 4 Data 5 HCL p cation 0 ppb 4 ppb 10 ppb 20 ppb 100ppb selection 1 0 0 0116 uS 0 0228 uS 0 0472 uS 0 0911uS
15. 0 450 uS 10 0 0230 uS 0 0352 uS 0 0631 uS 0 116 uS 0 565 uS 20 0 0419 uS 0 0550 uS 0 0844 uS 0 145 uS 0 677 US 30 0 0710 uS 0 085 uS 0 115 uS 0 179 uS 0 787 US 40 0 1135 uS 0 129 uS 0 159 uS 0 225 uS 0 897 US 50 0 173 uS 0 190 uS 0 220 uS 0 286 uS 1 008 uS 60 0 251 uS 0 271 uS 0 302 uS 0 366 uS 1 123 uS 70 0 350 uS 0 375 uS 0 406 uS 0 469 uS 1 244 uS 80 0 471 uS 0 502 uS 0 533 uS 0 595 uS 1 373 US Ammonia p O ppb 2 ppb 5 ppb 10 ppb 50 ppb selection 2 0 0 0116 uS 0 0229 uS 0 0502 uS 0 096608 0 423 uS 10 0 0230 uS 0 0337 uS 0 0651 HS 0 122 uS 0 535 uS 20 0 0419 uS 0 0512 uS 0 0842 uS 0 150 uS 0 648 uS 30 0 0710 uS 0 0788 uS 0 111 uS 0 181 uS 0 758 US 40 0 113 uS 0 120 uS 0 149 uS 0 221 uS 0 866 uS 50 0 173 US 0 178 uS 0 203 uS 0 273 uS 0 974 uS 60 0 251 uS 0 256 uS 0 278 uS 0 344 uS 1 090 uS 70 0 350 uS 0 356 uS 0 377 uS 0 439 uS 1 225 uS 80 0 471 uS 0 479 uS 0 501 uS 0 563 uS 1 393 uS Morpholine p 0 ppb 20 ppb 50 ppb 100 ppb 500 ppb selection 3 0 0 0116 uS 0 0272 uS 0 0565 uS 0 0963uS 0 288 uS 10 0 0230 uS 0 0402 uS 0 0807 uS 0 139 uS 0 431 uS 20 0 0419 uS 0 0584 uS 0 108 uS 0 185 uS 0 592 uS 30 0 0710 uS 0 0851 uS 0 140 uS 0 235 uS 0 763 uS 40 0 113 uS 0 124 uS 0 181 uS 0 289 uS 0 938 uS 50 0 173 uS 0 181 uS 0 234 uS 0 351 uS 1 12 uS 60 0 251 uS 0 257 US 0 306 uS 0 427 uS 1 81 uS 7O 0 350 uS 0 357 US 0 403 uS 0 526 uS 1 52 uS 80 0 471 uS 0 481 uS 0 528 uS 0 654 uS 1 77 uS Hydrochloric Acid 196 296 396 496 596 selection 4 0 65 mS 125 mS 179 mS 22
16. 2 of this manual 2008 VV September 9 under General Specifications 2009 X 1 October O 2010 A November N Basic Parts List Transmitter SC202 27 51 D User s Manual Optional mounting hardware when specified See model code 1 2 Application The EXA transmitter is intended to be used for continuous on line measurement in industrial installations The unit combines simple operation and microprocessor based performance with advanced self diagnostics and enhanced communications capability to meet the most advanced requirements The measurement can be used as part of an automated process control system It can also be used to indicate dangerous limits of a process to monitor product quality or to function as a simple controller for a dosing neutralisation system Yokogawa designed the EXA analyzer to withstand harsh environments The transmitter may be installed either indoors or outside because the IP65 NEMA4X housing and cabling glands ensure the unit is adequately protected The flexible polycarbonate window on the front door of the EXA allows pushbutton access to the keypad thus preserving the water and dust protection of the unit even during routine maintenance operations A variety of EXA hardware is optionally available to allow wall pipe or panel mounting Selecting a proper installation site will permit ease of operation Sensors should normally be mounted close to the transmitter in order to ensure easy calibration and pea
17. C 50 F 200 C 400 F 25 C 50 F 100 C 200 F The instrument is user programmable for linear or non linear conductivity ranges Maximum load 425 Q Burn up 22 mA or Burn down 8 9 mA or pulse of 22mA to signal failure See Fig 2 1 and 2 2 Temperature compensation Reference temp Automatic for temperature ranges mentioned under C inputs programmable from 0 to 100 C or 80 210 F default 25 C Compensation algorithm NaCl 1 IM 12D7B3 E E According IEC 746 3 NaCl tables default Two independent user programmable temperature coefficients from 0 0096 to 3 50 per C F by adjustment or calibration Matrix of Conductivity function of concen tration and temperature Choice out 5 preprogrammed matrixes and a 25 point user programmable matrix H Serial Communication 1 Logbook J Display K Power supply Bi directional according to HART digital communication super imposed on the 4 20mA signal Software record of important events and diagnostic data Available through HART interface Custom liquid crystal display with a main display of 3 digits 12 5 mm high Message display of 6 alpha numeric characters 7 mm high Warning flags and units mS cm kQ cm uS cm and MQ cm as appropriate Nominal 24 volt DC loop powered System SC202G up to 40 volts 5 2025
18. HART communication is enabled the output signal is 3 9 mA Code 35 TABLE The table function allows the configuration of an output curve by 21 steps intervals of 596 The following example shows how the table may be configured to linearize the output with a mA curve CONDUCTIVITY S cm Code 4 20 H SO mS cm Default 1 000 T T Output mA Service Service mS cm 800 code 55 code 35 0 4 0 0 00 0 0 600 5 4 8 1 25 60 50 BS 10 5 6 2 50 113 100 15 6 4 3 75 180 150 200 20 7 2 5 00 218 200 25 8 0 6 25 290 250 Q M M 34 34 9 34 3 30 8 8 7 50 335 300 WE E 80 35 9 6 8 75 383 350 Output in 40 10 4 10 00 424 400 45 11 2 11 25 466 450 CONCENTRATION 50 12 0 12 50 515 500 25 55 12 8 13 75 555 550 el 60 13 6 15 00 590 600 65 14 4 16 25 625 650 154 70 15 2 17 50 655 700 75 16 0 18 75 685 750 104 J 80 16 8 20 00 718 800 si 1 85 17 6 21 25 735 850 90 18 4 22 50 755 900 oz L j 95 19 2 23 75 775 950 0 20 40 60 80 100 100 20 0 25 00 791 1000 Output in 96 Fig 5 1 Linearization of output Table 5 3 Example 0 25 Sulfuric acid Concentration Output function is done in de following order e Set OUTP F Service Code 31 to table e Set the Concentration range in Service Code 55 e Set table values Youtput and Conductivity values in TABLE Service Code 35 IM 12D7B3 E E Parameter setting 5 15
19. RR pa ER EE ES LD I 1 o YES MODE DESS 6 CO SbmH Press YES to fix the selected second line of display IM 12D7B3 E E Parameter setting 5 1 5 PARAMETER SETTING 5 1 Maintenance mode 5 1 1 Introduction Standard operation of the EXA instrument involves use of the Maintenance or operating mode to set up some of the parameters Access to the maintenance mode is available via the six keys that can be pressed through the flexible window in the instrument front cover Press the MODE key once to enter this dialog mode Note that at this stage the user will be prompted for a passcode where this has been previously set up in service code 52 section 5 Calibrate See calibration section 6 Display setting See operation section 4 Hold Manually switch on off hold when enabled in commissioning menu See adjustment procedure 5 2 3 iL 5 1 2 Manual activation of Hold MODE MEASURE 065 ly MODE UT EE aa q HL 11 YES NO CALIBRATE min NO 24 NO li NO YES iy 233 n in 11 1 f O YE 1111 LI HUL J eee un ies IM 12D7B3 E E 5 2 Pa
20. Specifications A mA D Input specifications Two or four electrodes measurement Detection method Input ranges Conductivity Minimum Maximum Resistivity Minimum Maximum Temperature Pt1000 Pt100 and Ni100 8K55 NTC Pb36 NTC Output Span Conductivity Resistivity Temperature Sensor type Pt1000 Pt100 Ni100 Pb36 NTC 8k55 NTC Transmission Signal Isolated output of 4 20 mA DC with square wave excitation Cell constants from 0 008 to 50 cm 1 WUAO sensor cable up to 20m Up to 60m total using BA10 junction box and WF10 extension cable Frequency read pulse position and reference voltage are dynamically optimized 0 000 uiS cm to 1999 mS cm at 25 C 77 F reference temperature 0 2 uS x C at process temperature underrange 0 000 uS cm 500 mS x C at process temperature overrange 550 mS x C 0 000 999 U C at 25 C 77 F reference temperature 0 002 AU C at process temperature underrange 0 000 kO x cm 5 U C at process temperature overrange 999 MQ x cm 20 to 250 C 0 500 F 20 to 200 C 0 400 F 10 to 120 C 10 250 F 20 to 120 C 0 250 F min 0 01uS cm max 1999 mS cm max 9096 zero suppression min 0 001kQxcm max 999 U x cm max 90 zero suppression Dependent on temp sensor type min max 25 C 50 F 250 C 500 F 25
21. T1 C T range See sep table 11 2 24 L1xT1 Cond C1 See sep table 11 2 25 L2xT1 Cond C2 See sep table 11 2 26 L8xT1 Cond C3 See sep table 11 2 27 L4xT1 Cond C4 See sep table 11 2 28 L5xT1 Cond C5 See sep table 11 2 mA outputs 31 OUTP F 0 Linear S C 32 BURN 0 No Burn 35 11 21 pt table see code 31 11 1 IM 12D7B3 E E Appendix 11 5 FUNCTION SETTING DEFAULTS USER SETTINGS User Interface 50 RET 1 on 52 PASS 0 0 0 all off 53 Err 01 1 hard fail Err 05 1 hard fail Err 06 1 hard fail Err 07 1 hard fail Err 08 1 hard fail Err 13 0 soft fail 54 E5 LIM 250 mS 0 004 kQ E6 LIM 1 000 uS 1 0 MQ 55 0 96 0 Off 10096 100 0 56 DISP 0 Auto ranging SC 2 xx xxMQ cm RES 57 0 off Communication 60 COMM 0 1 off write prot ADDR 00 00 61 HOUR 62 ERASE General 70 LOAD Test and setup mode 80 TEST IM 12D7 B3 E E 11 6 Appendix 11 7 Error codes Code Error description Possible cause Suggested remedy 1 Polarization detected on cell Sensor surface fouled Conductivity too high Clean sensor Replace sensor Temperature coefficient out of limits 0 3 5 C Incorrect field calibration of TC Re adjust Set calculated TC Calibration out of limits Calibrated value differs more than 20 of nominal v
22. amp 2 Select method of temperature compensation 5 Service SERVICE Fine tune the specialized functions of the 5 Access to coded entries transmitter from the commissioning level NOTE All three levels may be separately protected by a password See Service Code 52 in chapter 5 Service Code table for details on setting passwords IM 12D7B3 E E 4 2 Operation Output hold flag Fail flag Menu pointer flags Units Main display Commissioning s function menu MEASURE CAL OUTPUT SET HOLD Message display DISPLAY HOLD TEMP SERVICE Key prompt flags Commissioning mode access key Selection keys r YES Accept setting NO Change setting Measure Maintenance Adjustment keys DONE YOKOGAWA 3 mode Koy gt Choose dot Io 3 N adjust Adjust digit Broken line indicates area ENT Confirm change that can be seen through front cover Figure 4 1 SC202 operator interface 4 2 Explanation of operating keys MODE key This key toggles between the measuring and maintenance modes Press once to obtain access to the maintenance function menu CALIB DISP 1 DISP 2 Only when second temp compensation enabled HOLD only when enabled Press again to return to the measuring mode press
23. conductivity Value for T1 L1xT2 values for lowest Value for T2 concentration L1xT5 Value for T5 25 L2xT1 Concentration 2 Similar to code 24 26 L3xT1 Concentration 3 Similar to code 24 27 L4xT1 Concentration 4 Similar to code 24 28 L5xT1 Concentration 5 Similar to code 24 29 Not used IM 12D7B3 E E 5 14 Parameter setting 5 5 mA output functions Code 31 OUTP F For the SC202 the output may be chosen as linear to input or configured in a 21 point table to a particular linearization Enable the table setup in code 31 and configure the table in code 35 Code 32 BURN Diagnostic error messages can signal a problem by sending the output signals upscale or downscale 21 mA or 3 6 mA This is called upscale or downscale burnout from the analogy with thermocouple failure signaling of a burned out or open circuit sensor The pulse burnout setting gives a 21 mA signal for the first 30 seconds of an alarm condition After the pulse the signal returns to normal This allows a latching alarm unit to record the error In the case of the EXA the diagnostics are extensive and cover the whole range of possible sensor faults Only when the HART communication is disabled the downscale output signal is 3 6 mA When
24. conductivity values for water quality are based on the Chloride model or the Ammonia model Our job is to develop on line analyzers that make it simple for our customers to meet the water quality that is specified as stage 1 Conductivity Limit as a Function of Temperature If the water exceeds the limits of stage 1 then it can still be acceptable but requires the customer to proceed to Stage 2 and possibly Stage 3 to validate the water quality It is our objective to assure that our customers do not exceed the limits in stage 1 to avoid them having to carry out the complicated laboratory checks in Stages 2 and 3 9 3 USP in the SC202 1 In SC202 we have defined an Error Code E13 This is independent of what range the customer is measuring or what temperature compensation method he is using for water quality monitoring When the display shows E13 then the water quality exceeds the USP limits and the FAIL flag on the display is activated to signal that the system needs urgent attention 2 We have introduced uncompensated conductivity in the DISPLAY menu In the LCD display the user can read the temperature and the raw conductivity to compare his water quality with the USP table 3 We have kept all the EXA functionality It is even possible to have the mA Output and Display readings in resistivity units Most users will have very good water quality and in the resistivity mode they will have better resolution on the recorder or DCS The
25. for a soft fail Limits can be set for shorted and open measurement Dependent on the main parameter chosen in code 01 the EXA will ask for a resistivity or conductivity value to be set value to be set is the uncompensated conductivity resistivity value To disable the E5 E6 diagnostics the limit must be set to O zero For some applications the measured parameter values may be more or less linear to concentration For such applications it is not needed to enter an output table but O and 10096 concentration values directly can be set The display resolution is default set to autoranging for conductivity reading If a fixed display reading is needed a choice can be made out of 7 possibilities For resistivity the default reading is fixed to xx xx MQ cm Automatic checking for compliance with the water purity standard set in USP United States Pharmacopeia For more detailed description see chapter 9 Parameter setting 5 17 Code Display Function Function detail x Default values User interface 50 RET Auto return Auto return to measuring mode Off 0 Auto return to measuring mode On 1 1 On 51 Not used 52 PASS Passcode Maintenance passcode Off 0 0 0 0 O Note O 9 where Maintenance passcode On Commissioning passcode Off O 1 111 22333 32777 Commissioning passcode On 4 888 5 123 6 957 Service passcode Off O 7 331 8 546 9 847 Service passcode On 53
26. formed on the surface of the electrodes and consequently an apparent increase in cell constant may occur giving a measuring error This error is Rv 2 X Reel x 100 96 where the resistance of the fouling layer Rcel the cell resistance NOTE Resistance due to fouling or to polarization does not effect the accuracy and operation of a 4 electrode conductivity measuring system If an apparent increase in cell constant occurs cleaning the cell will restore accurate measurement Cleaning methods For normal applications hot water with domestic washing up liquid added will be effective 2 For lime hydroxides etc a 5 10 solution of hydrochloric acid is recommended 3 Organic foulings oils fats etc can be easily removed with acetone 4 For algae bacteria or moulds use a solution of domestic bleach hypochlorite Never use hydrochloric acid and bleaching liquid simultaneously The very poisonous chlorine gas will result IM 12D7B3 E E 8 1 Troubleshooting 8 TROUBLESHOOTING The EXA SC202 is a microprocessor based analyzer that performs continuous self diagnostics to verify that it is working correctly Error messages resulting from faults in the microprocessor systems itself are few Incorrect programming by the user can be corrected according to the limits set in the following text In addition the EXA SC202 also checks the sensor to establish whether it is still functioning within specified limit
27. jndyno pue Addne d SZ0ZOS 920209 VX3 94 JO ejep E2u199 3 sjueujeJinbeJ uonoeuuoo 1 ui pue pe oudde Aug vS2 SI Jo S X A P uos AI SIS 1 A SSEd s q LY ejdnooouueu e eje s osues snopJezeH 40 0402 euoZ MZES d AGLL A do A OL OPS dwa juaiquie 104 91 OL sss dweyjueique Joy pL dogy dnoio p Ald 1 SSe 1O exa VSO vui 086 vulosz d SZ0ZOS 9 suonoeuuoj 3 820208 Josu s Jojeuiuue Fouen 81 eoepejut snjg1eddy 591 eae ayes IM 12D7B3 E E 2 7 Specifications 002 0 92 e3eq VZ UOlSIA M A 8 440414 VMV OMOA 0130 bed Ayoyes S surnul v szozos 1013002 IN enit 00 SZ0Z S 44 1 jeaoiddy W4 Joud 3nouy Hulme p uoISIA 91 ON V SZ0ZOS VX3 I9poIN SES ainyeuBbis n i sul uolje5lJni S dwejys Auedwog dul s mp ooiud eoueuejureui s JoUNJOeyNUeW 9y o ejeupe pue pue si pun peel Jo Bugs 1oJ q Jewod 1o uuoosip se1eudsouge ejqnsnquuoo Jo ejqeuiuey Jo uoniuUBi Waneid Ajejes oisuijuy edu Aew sjueuoduio2 jo uonmnisqnSs SNINHVM WYO 071 uey sse eq sNW punol Yee pue 9jes j eorsuuju Uganda eouejsiseM OPA JO SUHA OGZ uey 9jeJeueB Jo esn jou snw Ajddns au o pejoeu
28. of the instrument The passcodes should then be recorded safely for future reference When passcodes have been set the following additional steps are introduced to the configuration and programming operations Maintenance Press MODE key The display shows 000 and PASS Enter a 3 digit passcode as set in Service Code 52 to obtain access to the Maintenance Mode Commissioning Press key The display shows 000 and PASS Enter a 3 digit passcode as set in Service Code 52 to obtain access to the Commissioning Mode Service From the commissioning menu select Service by pressing YES key The display shows 000 and PASS Enter a 3 digit passcode as set in Service Code 52 to obtain access to the Service Mode NOTE See Service Code 52 for the setting of passcodes 4 4 Display examples The following pages show the sequence of button presses and screens displayed when working in some standard configurations More or less options will be made available by the configuration of some service codes or by choices made in the commissioning menu The following deviations are possible Item marked is omitted when switched off in commissioning mode Temperature compensation will be displayed dependent on chosen compensation method NaCl TC or matrix D SP 2 only appears if a 2nd different temperature compensation is set W W 96 only appears if switched on in service code 55 In display 2 w w 96 never appears IM 12D7B3 E E
29. power switching cables only standard sensor cables or extension cable are used the transmitter is mounted within the distance of the sensor cables max 10 m up to 50m WF10 extension cable the setup is kept flexible for easy insertion and retraction of the sensors in the fitting 3 3 2 Additional precautions for installations in hazardous areas Intrinsic safe Make sure that the total of capacitances and inductances connected to the input terminals of the EXA SC2028 do not exceed the limits given in the certificate This sets a limit to the cable and extensions used The intrinsic safe version of the EXA 202 instrument can be mounted in Zone 1 The sensors can be installed in Zone O or Zone 1 if a safety barrier according to the limits given in the System certificate is used Ensure that the total of capacitances and inductances connected to the terminals of the EXA SC202 do not exceed the limits given in the certificate of the safety barrier or distributor The cable used should preferably have a BLUE colour or marking on the outside Installation for sensors in Zone O or 1 Generally the distributor with input output isolation has no external earth connection If there is an earth connection on the distributor and the external connection of the transmitter is connected to protective earth the shield of the 2 wire cable may NOT be connected to protective earth at the distributor too IM 12D7
30. problem Contact Yokogawa IM 12D7B3 E E 9 1 USP 9 USP WATER PURITY MONITORING 9 1 What is USP USP stands for United States Pharmacopeia and it is responsible for issuing guidelines for the pharmaceutical industry Implementing these guidelines is highly recommended for companies wishing to market drugs in the US This means that USP is important for pharmaceutical companies worldwide USP recently issued USP recommendations for conductivity measurement This new USP aims at the replacement of 5 antiquated laboratory tests by simple conductivity analysis 9 2 Whatis conductivity measurement according to USP Life would be easy if the limits for the conductivity of injection water were set to be 1 3 uS cm at a reference temperature of 25 C However the committee PHRMA WQC who made the USP recommendations could not agree on a simple Sodium Chloride model for water quality determination Instead they chose a Chloride Ammonia conductivity pH model in water atmospherically equilibrated CO2 at 25 C The objective of the WQC was to find an easy way to establish the water quality so on line analysis at process temperature was a necessary requirement However if it is not possible to choose one temperature response model to work to then it is also not possible to choose one temperature compensation algorithm We as a manufacturer of analytical equipment do not want to go into the details of whether the limiting
31. uonhelle sul epi 0 820209 VX3 I9PoIN d Sc0c2S VX3 I9PoIN SZ0Z9S VX3 I9PoIN 3 820209 VX3 5 ejmnsu uoneognJe duiejs Auedwog dul Hw 006 E7 Jeujejxe uinuuixelN 0 pp e9 eouejoedeo unuixelA YW g Zk 3s jue uno indino WNWIXEN AF FL 3S0A eBeyoA indino ulnulxeyy s19jeureJed ay eAipueour uou SI YN Mdu Josues y pue jou si eoeyiejur el pe oJdde ys eui qO8v dnos z Nq 9810 104 Sun 092 peeoxe jou Pinoys eBeyoA ease ejes unuixel ped 939 40 1 Jeg jeoujoej3 ueipeue uim eouepioooe ui eq pinoys uoneleisu lqe51 HN 9 Z LEI adr 4d 262 O M e S 5 Xewd AZ L xeug VU08 gt xew Vu 092 gt xew A S gt XEUA Jo A yz 5 XEUA s yu uu uinb i BuiAolloj v s uu yey pesn eq Aew eH lul el pe oudde ys Auy Hw 002 eouejonpul unulixelA Ju 01 82 eouejoedeo eujejxe pewoj e uinuurxelA Vui g z 29s 1ueuno indino WNWIXEN Ab p 290A eBeyo indino wnwixey imoJojnduijosueg HM 9 2 eouejonpur jeujejur Safe 3 4d 7 4 19 eoueyoedeo jeujejur M ZC Ge NEU Jamod yndul uinuurxe A M Z xeWd Jamod dul uinuurxelA yw oge xelw yuan indul wnwixey vul 092 jueuno indul wnwixey A S 4L 2XeuiA eBeyoA jndul uinuuixe AJ Jo A pz xew eBeyoA indui unuixelA
32. up to 31 5 volts Note The transmitter contains a switched power supply The transmitter requires a minimum Power voltage in order to work correctly which is dependant on the load Please refer to figures 2 1 and 2 2 for the correct power supply 1200 0 22 mA 1100 0 1000 0 c c 2 g 800 0 t SS j 8 2 6000 I o B 400 0 4 1 8 1 200 0 1 31 5V 230 0 1 limit for IS version 0 0 Md L 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Voltage V Fig 2 1 Supply voltage load diagram o Q 17 Volts o gt 14 5 Volts E 2 I 4mA 7mA 20 mA Output Current mA Fig 2 2 Minimum terminal voltage at the SC202 L Input isolation 1000 VDC M Shipping Details Package size w xh xd 290 x 225 x 170 mm 11 5 x 8 9 x 6 7 in Packed weight approx 2 5 kg 2 2 Operating specifications A Performance Conductivity Accuracy lt 0 5 96 0 02 mA Performance Resistivity Accuracy lt 0 5 96 0 02 mA Performance Temperature with Pt10000 Ni100O and Pb36 NTC Accuracy lt 0 3 C 0 02 mA Performance Temperature with PT100Q and 8k55Q Accuracy lt 0 4 C 0 02 mA Performance Temperature compensation NaCl table x 196 Matrix 1 3 96 1 0 05 C 90 96 2 decades in 7 seconds Ambient influence Step response B Ambient operating temperature 10 to 55 C 10 to 130 F Excursions to 30 to 70 C 20 to 160
33. vui 8721 1ueuno yndjno ulnullxeiy A L21A eBeyoA yndjno unuxelv inouojndurjosueg HU 9 2 eouejonpul 9429JJ3 Ad IO eouejyoedeo EU M Z L d 3ndui uinuulxe A vul ogz xelw Juans indul wnwixey A yZexeulA ndul wnwixey no Addne 4 920209 8 4 SZ0Z2S 9U eu sju uu uinb iu uono uuo jeeui pue pe oJdde Aua sje oJddy W4 eJe 10 pTi OZ KBjeue JO MW GZ 4 AO y 0 Sjuauno A S seDeyjoA ejeJeuoD JOU ais Jeujieu U9IUM S olA p snjyesedde ejduuis se aq o d eAissed e jo eje s iosueS U0ne201 passejo uoneoo payissejoun uoisiAIq OL 5 dua OL Sg 5 duet uer wwe el lqeo Gogv dnog 4 Ald 11 59210 Wd QW 09 ujBuejejqeo Xe d Szozos SNE 3 820205 JOSU8S vu l egeo H 9 z A eT Jojeuiuue Fetten l 51 Jeueq pe ouddy INd IM 12D7B3 E E 002 0 92 e3eq NG 34 VMV9OMOA EZ UO S A M 0L JO 01 Bed 00 SZ0Z S 44 d uo Ayu Alpu ul uoN G SZ0ZOS 2 g szozos Buiweag 104u02 Wa snopiezeu uou q O mouy SI y JO 1u uudinb y woy u q seu Jamod ss lun JexeaJq n d jou oq SnopJezeu uou q o mouy SI eaJe ss un jueuudinbe 100 uuoosip Jou OG piez
34. with a dry sensor may be done If a connection box BA10 and extension cable WF10 are be used zero calibration should be done including this connection equipment When using a 4 electrode sensor additional connections are required temporarily Interconnect terminals 13 amp 14 with each other and 15 amp 16 with each other before making the adjustment This is necessary to eliminate the capacitive influence of the cables The links should be removed after this step is completed The EXA SC202 has a polarization check capable of monitoring the signal from the cell for distortion from polarization errors If there is a problem with the installation or the cell becomes fouled this will trigger E1 For some application with very low conductivity and long cable runs this error detection can cause false alarms during operation Therefore this code offers the possibility to disable enable this check Parameter setting 5 9 Code Display Function Function detail Default values Parameter specific functions 01 SC RES Select main parameter Conductivity 0 Cond Resistivity 02 4 ELEC Select 2 4 EL system 2 Electrode measurement system 0 2 El 4 Electrode measurement system 03 0 10 Set cell constant Press NO to step through choice of 0 100 om multiplying factors on the second display 0 10xC 1 00xC 0 10xC 10 0xC 100 xC 0 01xC Press YES to select a factor Use gt 4 ENT keys to adjust MAIN d
35. workstations using grounded soldering irons and wrist straps to avoid electrostatic discharge Installation and wiring The EXA analyzer should only be used with equipment that meets the relevant IEC American or Canadian standards Yokogawa accepts no responsibility for the misuse of this unit CAUTION The Instrument is packed carefully with shock absorbing materials nevertheless the instrument may be damaged or broken if subjected to strong shock such as if the instrument is dropped Handle with care Although the instrument has a weatherproof construction the transmitter can be harmed if it becomes submerged in water or becomes excessively wet Do not use an abrasive or solvent in cleaning the instrument Notice Contents of this manual are subject to change without notice Yokogawa is not responsible for damage to the instrument poor performance of the instrument or losses resulting from such if the problems are caused by e Improper operation by the user Use of the instrument in improper applications Use of the instrument in an improper environment or improper utility program Repair or modification of the related instrument by an engineer not authorized by Yokogawa Warranty and service Yokogawa products and parts are guaranteed free from defects in workmanship and material under normal use and service for a period of typically 12 months from the date of shipment from the manufacturer Individual sales organizations
36. 0 100m 0 5m 10 Let 20 00 0 2p 20 0 H 10k 100p 2k 500 500 2 00m 50 0 m 8 00 2 500m 5 Accuracy Test mA output circuit Actual Output mA Simulated Output mA 4 0 0 02 4 00 8 0 0 02 7 99 12 0 0 02 16 0 20 0 309 m Databankweg 20 20 50 Ambient Temp Rel Humidity 3821AL Amersfoort The Netherlands YOKOGAWA 4 1st Edition March 2002 IM 12D7B3 E E YOKOGAWA HEADQUARTERS 9 32 Nakacho 2 chome Musashinoshi Tokyo 180 Japan Tel 81 422 52 5535 Fax 81 422 55 1202 www yokogawa com YOKOGAWA EUROPE B V Databankweg 20 3821 AL AMERSFOORT The Netherlands Tel 31 33 4641 611 Fax 31 33 4641 610 www yokogawa com eu IM 12D7B3 E E Subject to change without notice Copyright YOKOGAWA CORPORATION OF AMERICA 2 Dart Road Newnan GA 30265 United States Tel 1 770 253 7000 Fax 1 770 251 2088 www yokogawa com us YOKOGAWA ELECTRIC ASIA Pte Ltd 5 Bedok South Road Singapore 469270 Singapore Tel 65 241 9933 Fax 65 241 2606 www yokogawa com sg Yokogawa has an extensive sales and distribution network Please refer to the European website www yokogawa com eu to contact your nearest representative YOKOGAWA 4 Printed in The Netherlands 10 702 A
37. 0 0 1 IAA ZE N 90 suu Aiddng 190g Dee ee pe ouddy W4 n i su Uone dwezs Auedwog dwezs IM 12D7B3 E E Specifications 2 12 IM 12D7B3 E E 3 1 Installation and wiring 3 INSTALLATION AND WIRING 3 1 Installation and dimensions 3 1 1 Installation site The EXA transmitter is weatherproof and can be installed inside or outside It should however be installed as close as possible to the sensor to avoid long cable runs between sensor and transmitter In any case the cable length should not exceed 60 meters 200 feet Select an installation site where e Mechanical vibrations and shocks are negligible e No relay power switches are in the direct environment e Access is possible to the cable glands see figure 3 1 e The transmitter is not mounted in direct sunlight or severe weather conditions e Maintenance procedures are possible avoiding corrosive environments The ambient temperature and humidity of the installation environment must be within the limits of the instrument specifications See chapter 2 3 1 2 Mounting methods Refer to figures 3 2 and 3 3 Note that the EXA transmitter has universal mounting capabilities e Panel mounting using two 2 self tapping screws e Surface mounting on a plate using bolts from the back e Wall mounting on a bracket for example on a solid wall e Pipe mounting using a bracket on a horizontal or vertical pipe maximum pipe diameter 50 mm
38. 02 is a 2 wire transmitter designed for industrial process monitoring measurement and control applications This user s manual contains the information needed to install set up operate and maintain the unit correctly This manual also includes a basic troubleshooting guide to answer typical user questions Yokogawa can not be responsible for the performance of the EXA analyzer if these instructions are not followed 1 1 Instrument check 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 number on the textplate affixed to the side of the instrument agrees with your order Examples of nameplates are shown CE N200 0344 CONDUCTIVITY RESISTIVITY TRANSMITTER EXA SC202S RANGE PROGRAMMABLE SUPPLY 24V DC OUTPUT 4TO 20 mA DC 10 TO 55 C SERIAL No EEx ib ia IIC T4 for Ta 10 to 55 C EEx ib ia IIC T6 for Ta 10 to 40 C I 2 1 G KEMA 00ATEX1069 X IS CL I DIV 1 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C HAZ LOC per Control Drawing FF1 SC202S 00 INTRINSICALLY SAFE SECURITE INTRINSEQUE Ex ia CL I DIV 1 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C Refer to Installation Drawing SC2028 CSA
39. 16 CELL SEPARATE SENSORS WITH WU40 LH CABLE o o 11 TEMPERATURE 12 TEMPERATURE 13 14 15 16 OUTER ELECTRODE OUTER ELECTRODE INNER ELECTRODE INNER ELECTRODE SCAA SENSORS WITH INTEGRATED CABLE 11 TEMPERATURE 12 TEMPERATURE 1 1 1 1 3 4 5 6 OUTER ELECTRODE OUTER ELECTRODE INNER ELECTRODE INNER ELECTRODE SX42 8X F SENSORS Figure 3 9 Sensor wiring diagrams IM 12D7B3 E E 3 7 Installation and wiring 3 7 Other sensor systems To connect other sensor systems follow the general pattern of the terminal connections as listed below 11 and 12 Always used for temperature compensation resistor input 13 and 14 Normally used for the outer electrode 15 and 16 Used for inner electrode In case a 4 electrode measuring system will be used 14 and 16 should be used for the current electrodes Please ensure that shielded cabling will be used In figure 3 10 this is shown in a schematic way wIwpepwpepe npepepepepe UNE 2 electrode configuration 4 electrode configuration Figure 3 10 Connection diagram for other sensors don 11 12 13 14 15 16 SUPPLY SENSOR Figure 3 11 Terminal identification label 3 7 1 Sensor cable connections using junction box BA10 and extension cable WF10 Where a convenient installation is not possible using the standard cables between senso
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41. 3 E E Specifications 2 10 002 0 92 e3eq EZ UOlSIA M N H 440414 VMV9OOMOA 0L 40 9 oBeg 00 SZ 0 2S l44 Jequnw da9u09 Aua ayes S suinul 4 4820205 4 SZOZOS Buiweig lonuo WS enit jeaoiddy W4 Jod UOLS A L ON d Sc0c2S VX3 I PON d SZ0ZOS VX3 I9PoIN SEU eynjeuBis ejmnsu uone duiejs ueduio9 dul Sejnpeooud eoueuejureui AI S JeJnjoejnueuu v o e1eupe pue puejsuepun peal Jo Buras eJojeq Jamod joeuuoosip sejeudsoune ejqnsnquuoo e qeuuuiejj jo uoniuBrjue eJd Ayoyes lsulnu aedu Aew sjueuoduioo jo uonni sqnS SNINSVM uuo 0 1 uey sse eq snw punoJ yea pue aes Ajeorsuuju eouejsiseM OPA 10 SUJA 092 uey JO aen zou jsnui 94 oj pejoeuuoo snjejJedde pajerioossy 02 Vd3N ISNV 9p02 6211102 5 oU pue suoneoo7 peyissej2 SnopJezeH 40 sulejs S aes jeorsuiu jo UOHE E SU L0 90 ZI del VSI ISNV M eouepJoooe u eq pinous uollle su Buimesp uoneljejsui s JeJnjoejnueui eui Mojo 3u uudinb siu Burjjejsur u uAA age HN 9 z 21 914802 Jd 262 O M C V 51d 10 90g VW 092 gt 1140 90 A yz 5 1A 10 90A sjueujeuinbe4 ay sjeeui zey pesn eq Aew Jeuueq paroiddy W4 Aug Hui 00Z EI eouejonpul pewojje winwixey Ju 0 E eouteyoedeo pewojje uinulxelA
42. 4 BLL si j uuejed BHulmoljo ay uy spasu seoiep eui 1939uuoo1 lul pesn ejqeo aul eNssed suieuieJ snqpjer4 S v ey eunsul o uonelosi 9IueA eD e spasu 1ueuidinbe SIA p pe1oeuuoo uoee 10 Y OG Jo 1ue uno eBexee e o 1deoxe uiejs s y o ABjeue jou avissed eq 0 sey lqe2 snq eu o pejoeuuoo jueuudinbe 19470 uiejs s snqpjal4 eui 104 Jamod Kjesseoeu y epi oJd o pamoye SI LlEq OOS 4 pe ouddy W4 eui Ajjewuou eounos eAnoe euo juo jueuif amp ies snqpi l i S uoee l A An ds L H OL pue Jug o jenbe 10 uey sse eq JSNW snqpjarJ 94 o pejoeuuoo Jojeuiuue BY Jeujo snjejedde yoke Jo r1 eouejonpul pue IO eougyoedeo jenpiseJ pejoeyoudun wnwxew y uonippe uj aeq OOS J pe oJdde W4 ay Aq eq ued YoIUM d 90q JaMod v pue DI 5o zuana eu A 20A eBeyo eui zey 10 o jenbe aq snw synej Buuepisuoo ajes A JeorsuiQur Ulead pue AI9981 UBD snyeJedde et uoiuM 14 ay pue xeuul juauno y xeulA eBe yoa y 181 SI uonoeuuooJejul uons JO uoli9 u9 eu uoneuiquioo yons ul peuruexe Ajjeayioads jou snyesedde S EH A S jo uonoeuuooJejul BY swoj e 1090409 OOSI4 au WYO 0 1 uey ss eq 1snui punou Yes pue punog ayes Aj eorsuuju OOS 4 eouejsiseM OPA JO swg OGZ uey SOU Jo esn jou jsnuu
43. 5 4 1 General precalitions up vai a aaah TUR E 3 5 3 4 2 Connection of the power supply emere nnne 3 5 3 4 3 Switching the msir ment OFT l l sa tee tedio weeds fan 3 5 Smeg Pm 3 6 3 6 Sensor connection using junction box and extension cable 3 6 B Oer sensor ac 0000000000 0000000000 3 7 8 7 1 Sensor cable connection using junction box BA10 and extension cable WF10 3 7 4 OPERATION DISPLAY FUNCTIONS AND GETITING nr 4 1 A t Operator nacio TOT DL UL LLL 4 1 4 2 Explanation oT1 operating EE 4 2 4 9 56tting WASSCODSS T 4 3 4 3 1 Passcode ptOtectlOr osse eere ect ex Rut arala GR ere ORO RR RR RN FERNER M 4 3 4 4 4 3 el Eller el 4 4 5 PARAMETER SETTING uu L L ra ik A lc codigos 5 1 S MAINTENANCE Tnode dde egre daaa Rer neenon daa e ar aV ERR UR 5 1 eru Eu Pi IMOGUCTION EE EE EOD ODISSE 5 1 52122 Manual activation Of HOLD TE 5 3 s P COMMISSIONING De ue le PET 5 2 x leiere Mola NEE 5 2 al u u T 00 0 0000000 5 3 Spe 5 4 5 2 4 Temperature cormmperisation o iecit sed alas seedy 5 5 5 2 5 Temperature compensation selection ees 5 6 522267 SEMICE CODY u ua 5 7 IM 12D7B3 E E CODES XZ au da A
44. 820209 VX3 94 jeouje pomsur pd die wu gepa eweg nu 09 23 xew Ba s s OT TT speuraua susp n m r 104 Dt Addng o o D o E o o O O o mdmo Dr o LAVH Joere Sz020S VXH m ng ven lop gt quorqure soy 91 2166 gt d r te 107 pL AAY dnom Tar 41 8521 Wa poaoxddy Wat u is p ayes Aj eorsurnug p m u uonexrpegssepug Be m TORSO POSSE umsis yy peoT queo unu 21 Cem age 3mo 4idins TEUTUON Od SHOA tz ejqneduioo LX VH 00 uri qua Aiddns xomod 20 1oU1eq jojes poorddy Wy AU 09 PZUP KEL 91 11 speuruuo 10su S oAnoojo1d oAnoojoid Ao oq aas mep J s jeue Sz02OS VXH O op gt dap juerquie soy 91 ss gt dwa uorqure doy pL dogv dnosp PA SSe WA usisop ayes j eorsumu IM 12D7B3 E E 002 0 92 e3eq N 8 34 VMV9OMOA EZ UOlSIA M Specifications 2 8 0L JO 9 oBeg 00 920209 14 JequnwN snopuezey uou q O mouy SI y JO jueuudinbe y WO p Aouu i u q seu ss un JexeeJq NOJ jese1jou oq snopiezeu uou q o mouy SI Bale ssejun Ju uudinb joeuuoosip Jou oq piezeH uolso dx3 IM 12D7B3 E E snopiezeu uou o MOUY SI sse un SI WOU JIUA eoejdej JO
45. 9 mS 273 mS 15 91 mS 173 mS 248 mS 317 mS 379 mS 30 114 mS 217 mS 313 mS 401 mS 477 mS 45 135 mS 260 mS 370 mS 474 mS 565 mS 60 159 mS 301 mS 430 mS 549 mS 666 mS Sodium Hydroxide 196 296 396 496 596 selection 5 0 31 mS 61 mS 86 mS 105 mS 127 mS 25 53 mS 101 mS 145 mS 185 mS 223 mS 50 76 mS 141 mS 207 mS 268 mS 319 mS 75 97 5 mS 182 mS 264 mS 339 mS 408 mS 100 119 mS 223 mS 318 mS 410 mS 495 mS IM 12D7B3 E E Appendix 11 3 11 4 Sensor Selection 11 4 1 General The inputs of the EXA transmitter are freely programmable for ease of installation Standard 2 electrode type sensors with a cell constant of 0 100 cm and a Pt1000 temperature sensor need no special programming The EXA indicates a fault with a signal in the display field if there is a mismatch of sensors in the connection 11 4 2 Sensor selection The EXA SC202 is pre programmed to accept standard 2 electrode sensors with a Pt1000 temperature sensor The EXA is universally compatible with all 2 and 4 electrode type of sensors with a cell constant within the range of 0 008 cm to 50 0 cm 11 4 3 Selecting a temperature sensor The EXA SC202 reaches its highest accuracy when used with a Pt1000 temperature sensor This may influence the choice of the conductivity resistivity sensor as in most cases the temperature sensor is integrated in the conductivity resistivity sensor 11 5 Setup for other functions mA e Current Outputs Transmission sig
46. AMEA J TEMP 1 NO geen YEs gt 2 YV YES XIEMP l YES NO No I YES NO SZ m YES M 12D7B3 E E Parameter setting 5 7 5 2 6 Service code The figure below shows a typical button sequence to change a setting within the service menu The specific settings are listed in numerical sequence on the following pages On the page facing the setting tables are concise explanations of the purpose of the service codes OUTPUT SERVICE After changing the parameter the instrument first goes into reset to load the parameter specific default values r 1 MQ cm 11 ET euge Z 4 NO Example Service Code 01 ENT Select main parameter for SC 1 T mm for RES Ur v ei XHUL J With the gt ENT keys KSLRES S NO A 41 Z jum ENT LI XTEMP COIE XSCRE Soom NO A fi n LI rz m TE NO gt N w YES j 1 SK IT es E ges X SERV YES NO IM 12D7B3 E E 5 8 Parameter setting 5 3 Service Codes 5 3 1 Parameter specific func
47. B3 E E 3 5lnstallation and wiring 3 8 3 Installation in Hazardous Area Non Incendive The SC202S N may be installed in a Category 3 Zone 2 Div 2 area without the use of safety barriers Maximum permissible supply voltage 31 5V 3 4 Wiring of power supply 3 4 1 General precautions Do not activate the power supply yet First make sure that the DC power supply is according to the specifications given HA DO NOT USE ALTERNATING CURRENT OR MAINS POWER SUPPLY The cable leading to the distributor power supply or safety barrier transports power to and output signal from the transmitter Use a two conductor shielded cable with a size of at least 1 25 mm and an outside diameter of 7 to 12 mm The cable gland supplied with the instrument accepts these diameters The maximum length of the cable is 2000 metre or 1500 metres when using the communications This ensures the minimum operating voltage for the instrument Grounding e f the transmitter is mounted on a grounded surface e g a metal frame fixed in the soil the shield of the 2 wire cable may NOT be connected to ground at the distributor f the transmitter is mounted on a non conducting surface e g a brick wall it is recommended to ground the shield of the 2 wire cable at the distributor end 3 4 2 Connection of the power supply The terminal strip is accessed as was described in section 3 2 1 Use the left hand gland to insert the supply output cable to the
48. D7B3 E E 12 1 Test Certificate Test Certificate 1 Instrument Description Order 2 General Inspecton 3 1 Insulation Test Model C202G F E U 100000193018 EXA Series Model SC202 Conductivity or Resistivity Transmitter Serial No P7113118 2 1 Release Version 3 2 Communication Test 4 1 Accuracy Test C C 1 00cm 1 000k 4 2 1 Accuracy Test Temp Display with Ni 100 RTD 25 0 3 75 0 3 0 3 C 75 1 10 01 k 145 0 125 124 9 0 010M 1 001 M 231 8 190 0 3 190 0 4 2 2 Accuracy Test Temp Display with Pt100 RTD Reading C Resistance Q Temp C Tolerance C 4 2 3 Accuracy Test Temp Display with Pb36 NTC sensor Reading C Resistance Q Temp C 0 4 10 0 t0 3 s 4 2 4 Accuracy Test Temp Display with Pt1000 RTD Resistance Q 960 9 1097 3 Temp C 10 903 s 25 110 t 0 3 4 2 5 Accuracy Test Temp Display 8k55 sensor 89 Reading C 24 e 25 1289 8 75 1479 4 20 3 25 0 20 3 75 0 4 3 Overall Accuracy Test 1 88 NaCl compensation Display S cm 125 Input Q Tolerance S cm Pt1000 T 25 0 3 C Reading S cm 8550 0 2 1 9 5 0 4 780 0 0 4 Reading mA 0 02 4 00 100 50 2
49. Err 01 Error setting Polarization too high Soft Hard 0 1 1 Hard Err 05 Shorted measurement Soft Hard 0 1 1 Hard Err 06 Open measurement Soft Hard 0 1 1 Hard Err 07 Temperature sensor open Soft Hard 0 1 1 Hard Err 08 Temp sensor shorted Soft Hard 0 1 1 Hard Err 13 USP limit exceeded Soft Hard 0 1 0 Soft 54 E5 LIM E5 limit setting Maximum conductivity value 250 mS Minimum resistivity value 0 004 kQ E6 LIM E6 limit setting Minimum conductivity value 1 000 uS Maximum resistivity value 1 000 MQ 55 Display mA in w w mA range displayed in w w off 0 Off mA range displayed in w w96 on 1 096 Set 0 output value in w w96 100 Set 100 output value in w w 56 DISP Display resolution Auto ranging display 0 0 Auto Display fixed to X XXX uS cm or MQ cm 1 Display fixed to XX XX uS cm or MQ cm 2 2 Display fixed to XXX X uS cm or MQ cm 3 Display fixed to X XXX mS cm or kQ cm 4 Display fixed to XX XX mS cm or kQ cm 5 Display fixed to XXX X mS cm or kQ cm 6 Display fixed to XXXX mS cm or kQ cm 7 57 USP USP setting Disable the E13 USP limit exceeded 0 0 Off Enable the E13 USP limit exceeded 1 58 59 Not used IM 12D7B3 E E 5 18 Parameter setting 5 7 Communication setup Code 60 COMM ADDR Code 61 HOUR MINUT SECND YEAR MONTH DAY Code 62 ERASE 5 8 General Code 70 LOAD The settings should be adjusted to suit the communicating device connecte
50. JO seoi ep YMS eAnsiseJ eAIssed S GLY sejdnooouueuj e siosuegS e ws Fa Tare mopauzeyl gt que ono 2 ae emp e3up 304 Te REM 1 KE S 445 o Vu 001 xeu g OCHOA S I mn sonyea lqeyns 5 o 9r 11 75 G ro te o ndino ro o rqneduro peres dozAeue Sz02OS VX O 0r gt duet marque doy 9L Pego VSO 2155 gt dwa marque doy pL dnoro VALI 1559 erxg VSO UBisap ayes Ajeorsurijug N SC0COS VX3 I POIN V SC0COS VX3 IPPON 1 6 s K pz 194 Hi IS m yin ES queo queo eg ee AAO TAQ xa s s m m r oq e am wur 001 xeu OTOA S I XeuA Se T T1 seuraa _ tam sanea ajqeuns 9 er MOSNAS o o o Os ow e3eyoA Ayddng TEUTUON 20 SHOA p7 lqneduro ten 15 ur 1 zK eue 520208 VXH Ajddns 10 1o11req Ayayes Dow gt dun gemeng 91 emn vs 2165 gt dura marque oy pL dno Tarq 100 vr xq WSO E u ts p opes Zeta e3ngnsu UOL dues Auedwoy 2 5 Specifications Specifications 2 6 v002 20 9c e3eq EZ UO S A M N H 440414 VMV9OMOA 0L JO p Bed 00 S 0 2S l44 Jequnw VS SZ0Z2S BuiweJq
51. OATEX1069 X Ex ia CL I DIV 1 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C Refer to Installation Drawing SC2028 CSA IS CL I D V 1 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C HAZ LOC per Control Drawing FF1 SC202S 00 NI CL I DIV 2 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C HAZ LOC per Control Drawing FF1 SC202S 00 I CL I D V 2 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C Refer to Installation Drawing SC2028 CSA EEx nA L IIC T4 for Ta 10 to 55 C EEx nA L IIC T6 for Ta 10 to 40 C KEMA OOATEX1070 X The SC202 Device Description is available enabling communications with the Handheld Communicator HCC and compatible devices Model Suffix Code Option code Description SC202G Conductivity Transmitter General Purpose version SC2028 Conductivity Transmitter Intrinsic Safe version profibus PA version ili amp HART version Non incendive profibus PA version FOUNDATION 6 Fieldbus version Non Incendive Milli amp HART version Non Incendive FOUNDATION Fieldbus version E Always E T Options SCT Q Calibration certificate H Hood for Sun Protection U Pipe amp Wall mounting hardware Stainless steel tagplate IM 12D7B3 E E 2 3 Specifications v002 20 9c e3eq FS UOlSIA M N H 4d04 Na VAV OMOA 0L JO oBeg 00 SZ0 2S l44 49quinN
52. WARNING AVERTISSEMENT Substitution of La substitution de composants components may impair peut compromettre la s curit intrinsic safety intrins que Amersfoort YOKOGAWA O The Netherlands APPROVED Figure 1 1 Nametplate IM 12D7B3 E E C O 200 FREELY RANGE PROGRAMMABLE SUPPLY OUTPUT AMB TEMP Ta 4 TO 20 mA DC 10 TO 55 C SERIAL No Amersfoort YOKOGAWA The Netherlands C O N200 SUPPLY 9 TO 32V DC OUTPUT AMB TEMP Ta 10 TO 55 C SERIAL No YOKOGAWA 4 O Nepeta C 0344 N200 CONDUCTIVITY RESISTIVITY TRANSMITTER EXA SC202S O FISCO 17 5VDC 380mA 5 32W or 24VDC 250mA 1 2W SUPPLY OUTPUT FF TYPE 111 Liz2 6UH Ci 737pF zi L RB 10 TO 55 C SERIAL No EEx ib ia IIC T4 for Ta 10 to 55 C EEx ib ia IIC T6 for Ta 10 to 40 C 12 1 G KEMA 1069 X IS CL I DIV 1 GP ABCD T4 for Ta 10 to 55 C ib bu per Control Dravving APPROVED FF1 SC202S 00 INTRINSICALLY SAFE SECURITE INTRINSEQUE Ex ia CL I DIV 1 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C Refer to Installation Drawing SC2028 CSA WARNING AVERTISSEMENT Substitution of La substitution de composants components may impair peut compromettre la s curit intrinsic safety intrins que Amersfoort YOKOGAWA The Net
53. ace the cover and secure frontplate with the four screws Connect the grounding terminals to protective earth The optional hose connection is used to guide the cables coming from an immersion fitting through a protective plastic tubing to the transmitter NOOO O N 3 2 1 Cables terminals and glands The SC202 is equipped with terminals suitable for the connection of finished cables in the size range 0 13 to 2 5 mm 26 to 14 AWG The glands will form a tight seal on cables with an outside diameter in the range of 7 to 12 mm 9 82 to 15 82 inches POWER OUTPUT CABLE GLAND GROUNDING TERMINAL Figure 3 5 Glands to be used for cabling IM 12D7B3 E E Installation and wiring 3 4 l ER HAND HELD COMPUTER COMMUNICATOR ER unner 4 e OUTPUT SUPPLY INPUT SENSORS 2 5 or 10 m t CURRENT OUTPUT p 5 Safety Barrier C202S only RECORDER Figure 3 6 System configuration 3 3 Wiring of sensors 3 3 1 General precautions Generally transmission of signals from SC sensors is at a low voltage and current level Thus a lot of care must be taken to avoid interference Before connecting sensor cables to the transmitter make sure that following conditions are met the sensor cables are not mounted in tracks together with high voltage and or
54. alue programmed in code 03 Check for correct sensor Check for correct unit uS cm mS cm kQ cm or MQ cm Repeat calibration E Matrix compensation error Wrong data entered in 5x5 matrix Re program E5 1 Conductivity too high or resistivity too low Incorrect wiring Check wiring 3 6 Limits set in service code 54 Internal leakage of sensor Replace sensor Defective cable Replace cable E6 1 Conductivity too low or resistivity too high Dry sensor Immerse sensor Limits set in service code 54 Incorrect wiring Check wiring 3 6 Defective cable Replace cable E7 Temperature sensor open Process temperature too high or too low Check process Pt1000 T 250 C or 500 F Wrong sensor programmed Check model code sensor Pt100 Ni100 T gt 200 C or 400 F Incorrect wiring Check connections and cable 8k55 T 10 C or 10 F PB36 T lt 20 C or O F E8 Temperature sensor shorted Process temperature too high or too low Check process Pt1000 Pt100 Ni100 T 20 C or O F Wrong sensor programmed Check model code sensor 8k55 PB36 T gt 120 C or 250 F Incorrect wiring Check connections and cable E Air set impossible Too high zero due to cable capacitance Replace cable E10 EEPROM write failure Fault in electronics Try again if unsuccessful contac Yokogawa E13 USP limit exceeded Poor water quality Check ion exchangers E15 Cable resistance influence t
55. anual temperature compensation If the standard compensation function is found to be inaccurate for the sample to be measured the transmitter can be set manually for a linear factor on site to match the application The procedure is as follows Take a representative sample of the process liquid to be measured Heat or cool this sample to the reference temperature of the transmitter usually 25 C Measure the conductivity of the sample with the EXA and note the value Bring the sample to the typical process temperature to be measured with the EXA Adjust the display indication to the noted value at the reference temperature Check that the temperature compensation factor has been changed Insert the conductivity cell into the process again NOOR WDM Other possibilities section 5 4 Enter calculated coefficient Enter matrix temperature compensation N IM 12D7B3 E E 5 6 Parameter setting 5 2 5 Temperature compensation selection MODE Fs gt MEASURE pus 2 After briefly displaying VVATT it will be possible to adjust the display reading to the correct value using gt ENT keys D LA d sin En XUUTF YES NO XIL YES NO N X A d Z NO ke m Briefly ET WAIT un HUL J
56. ation write protect enable ADDR Network address Set address 00 to 15 00 61 HOUR Clock setup Adjust to current date and time using MINUT and ENT keys SECND YEAR MONTH DAY 62 ERASE Erase logbook Press YES to clear logbook data 63 69 Not used Code Display Function Function detail Default values General 70 LOAD Load defaults Reset configuration to default values 71 79 Not used Code Display Function Function detail Default values Test and setup mode 80 TEST Test and setup Built in test functions as detailed in QIS and Service Manual IM 12D7B3 E E 6 1 Calibration 6 CALIBRATION 6 1 When is calibration necessary Calibration of conductivity resistivity instruments is normally not required since Yokogawa delivers a wide range of sensors which are factory calibrated traceable to NIST standards The cell constant values are normally indicated on the top of the sensor or on the integral cable These values can be entered directly in service code 03 section 5 3 1 If the cell has been subjected to abrasion erosion or coating calibration may be necessary In the next section two examples are given Alternatively calibration may be carried out with a simulator to check the electronics only NOTE During calibration the temperature compensation is still active This means that the readi
57. ayda aaa we tet ra ma 5 8 523 1 Parameter specific TUNGHIONS assi m s ia R y a aiding ansa 5 8 5 3 2 Temperature compensation and measuring 5 10 5 4 Temperature COMPENSATION ssiic eor reo due e canensnanedeassy sau SOR EY RE TORRE UP TARDE 5 12 MA Output TUNCTIONMS S a saa daa abad aydaa bie euet mak tte ba ot d Ee 5 14 s s a interlace snena Tbe addu ele 0000000000 000 5 16 527 Sek le Re DEEN 5 18 Ca z all 0002000000 ERE 5 18 5 9 T st and setup mode EE 5 18 6 CALIBRATION WE 6 1 6 1 When Is calibration MECESSALY EE 6 1 6 2 Galibration lte ee 6 2 6 3 Calibration with MOLD ac oerte pe Sasu usaba ERROR FIRE IR NERO etd pa alsa 6 3 7 El E Le 7 1 7 1 Periodic maintenance for the EXA 202 transmitter ee 7 1 7 2 Periodic maintenance for the sensor system n nennen enne 7 1 8 TROUBLESHOOTING ayan 8 1 sc pee LIE 8 2 8 1 1 Offine calipration CHECKS uses cioe may IRE ut pp d OR RR POPE T 8 2 8 1 2 On line impedance checks inei e e SR POR Ap MY anne res 8 2 9 USP Water Purity Monitoring a eem emere nnne 9 1 9 1 What CRUNIM 9 1 9 2 What is conductivity measurement according to 9 1 9 3 USP M MeS C202 0000000000 00000 9 1 9 4 Setting SC2Z02
58. can deviate from the typical warranty period and the conditions of sale relating to the original purchase order should be consulted Damage caused by wear and tear inadequate maintenance corrosion or by the effects of chemical processes are excluded from this warranty coverage In the event of warranty claim the defective goods should be sent freight paid to the service department of the relevant sales organization for repair or replacement at Yokogawa discretion The following information must be included in the letter accompanying the returned goods Part number model code and serial number Original purchase order and date Length of time in service and a description of the process Description of the fault and the circumstances of failure Process environmental conditions that may be related to the installation failure of the device A statement whether warranty or non warranty service is requested Complete shipping and billing instructions for return of material plus the name and phone number of a contact person who can be reached for further information Returned goods that have been in contact with process fluids must be decontaminated disinfected before shipment Goods should carry a certificate to this effect for the health and safety of our employees Material safety data sheets should also be included for all components of the processes to which the equipment has been exposed IM 12D7B3 E E CONFIGURATION CHECKLIST FOR SC202
59. d to the output The communication can be set to HART or to PH201 B distributor for Japanese market only Select address OO for point to point communication with 4 20mA transmission Addresses 01 to 15 are used in multi drop configuration fixed 4mA output The clock calendar for the logbook is set for current date and time as reference Erase logbook function to clear the recorded data for a fresh start This may be desirable when re commissioning an instrument that has been out of service for a while The load defaults code allows the instrument to be returned to the default set up with a single operation This can be useful when wanting to change from one application to another 5 9 Test and setup mode Code 80 TEST The test mode is used to confirm the instrument setup It is based on the factory setup procedure and can be used to check the QIC factory generated Certificate This test is described in the Quality Inspection Standard see chapter 12 NOTE Attempting to change data in service code 80 and above without the proper instructions and equipment can result in corruption of the instrument setup and will impair the performance of the unit IM 12D7B3 E H Parameter setting 5 19 Code Display Function Function detail Default values Communication 60 COMM Communication Set communication Off 1 0 On Set communication On Set communication PH201 B On Communication write enable Write Communic
60. e jo eie s josues lou 130 0 noz toI snopezeH t q quea An331014 91 11 seua MOSNHES o HEA T Od Ajddng O Vur 001 or TE 00 D o o o 0 o ot mdmo 0 o A JozApue SC C S o qneduroo TU 9jeon nis prod ce lop dat marque 107 91 X 6901 41 00 JU q yc d yi p y qt XAT s gt duet juerqure toy pL 20 er qt XAT prepueis q TIN3O u is p ayes Aj eorsutnug Va Cem wale aye mn mopnzey L SOURISISAY z An291014 aaen 91 11 seuru E MHOSNZIS G ory Q Vur oot or OANA STE 9N o of rqneduro LAVH 00 1urq qua 10 Zeie Feta 4 44 zeue SZOTIS VXH X 6901X41V00 au or gt dur juorqure 104 91 O ss gt dwa juerqure soy pL OlI et qt XAT paepueis Dd THNHO u is p ayes Ig3rsurnul IM 12D7B3 E E Specifications 2 4 002 0 92 VZ uolsIA 3 N H 440414 VMV9OMOA 0L 40 z 00 SZ2029S L44 Jequnw szozos ouo enit d SZ0Z S VX3 I PON 3 820225 VX3 I PON ainyeuBbis lqe51 Hrl 9 Z ET t lqeo Jd 262 60 M g S gt Od A ZLSOd VWO8E ol VW 092 gt ol ASZL5on Jo Arceson sju uu uinb u Bul mojo ay sjeeui yey p sn aq Aew aoepajul S Auy
61. eH uoiso dx3 snopjezeu uou aq o MOU SI SS lUn 51 PNOO au e2ejde110 AOLUAIJOUOq Z UOISIAIG 10 Ayiqeyns edw Aew sju uoduuoo jo uonnsqans SNINHVM pO2 eoujoe 3 IPeuoneN eui JO 0SZ av uy eouepuJoooe ul eq ileus Bulpunalg g g L0S amy eouepaoooe ur eq Aew Bum AIDU SUIUON 6 Vd3N ISNV 9poo 29114993 jeuoneN eui Jo g LOS Y ui eouepJoooe ul eq jjeus uonejeisuy uonelle sul sJemjoejnueu ay Mo 3iueuudinbe siy 1641 ueuM HW 006 61 4 1z80 WW g ZL2M A PLS HNO jndurjosueg H 97 1 dd 262 O MZ b Id A ZE XewA amo Ajddng 10 920209 9 8 920209 VX3 94 Jo ejep sju uu uib 1 uonoeuuoo ui pue p Aoidde Aua sje o1ddy W4 ee Jo pr OZ B1 u JO Mw SZ 4 AO JeMOd y 0 5 A G 4 AO S B NOA JOU 1O S Joe YOIUM Selen snyesedde e duus se aq o d aAIssed e jo ae sjiosu9S jeaoiddy W4 Joud ynoyyM Hulme p 0j uoisiA9J ON 2 11 Specifications 0 420205 VX3 I PON UOneoo payisse o UOIlje207 payissejoun 4 820209 VX3 I9PpoIN CROP 5 injeuBis OL 5 auiejjuerquie 104 9L OL 99 5 duet juerquie 10 pL uz E p lqeo OO dng z A0 I SSe1O W4 l Jui 09 ujBuejejqeo xey a sz0zos Ssuogoeuuo f 8 8 920209 Jjsues a 3 22
62. enabled 11 9 4 Changes made by software release 2 2 e Minimal celconstant changed from 0 008cm to 0 005cm 11 9 5 Changes made by software release 2 3 e Default Temperature Compensation Matrix loaded to prevent impossible values after a loading all parameters from DCS 11 9 6 Changes made by software release 2 4 e Create possibility to disable E5 E6 diagnostics by setting the E5 E6 limits to 0 zero e Burn down outputsignal changed to 3 9 mA when the HART communication is enabled When disabled it is 3 6 mA e Fixed rare HART communication failure 11 9 7 Changes made by software release 2 5 e Implementation of Burn low in combination with HART changed e Some minor improvements in HART communication IM 12D7B3 E E 12 1 Test Certificate 12 1 TEST CERTIFICATE Test EXA Series Certificate Model SC202 Inductive Conductivity Transmitter Introduction This inspection procedure applies to the model SC202 Conductivity transmitter There is a serial number unique to the instrument which is stored in non volatile memory Each time the transmitter is powered up the serial number is shown in the display An example is shown below for details see the Users manual 0 2 5 Unique Number F 0 00 Line Number ATE automatic test equipment no Month code Year code General Inspection Final testing begins with a visual inspection of the unit to ensure that all the relevant parts a
63. er to permit a clear view of the display and allow proper operation of the pushbuttons If the window becomes soiled clean it using a soft damp cloth or soft tissue To deal with more stubborn stains a neutral detergent may be used NOTE Never used harsh chemicals or solvents In the event that the window becomes heavily stained or scratched refer to the parts list Chapter 10 for replacement part numbers When you must open the front cover and or glands make sure that the seals are clean and correctly fitted when the unit is reassembled in order to maintain the housing s weatherproof integrity against water and water vapour The measurement otherwise may be prone to problems caused by exposure of the circuitry to condensation see page 10 1 The EXA instrument contains a lithium cell to support the clock function when the power is switched off This cell needs to be replaced at 5 yearly intervals or when discharged Contact your nearest Yokogawa service centre for spare parts and instructions 7 2 Periodic maintenance of the sensor NOTE Maintenance advice listed here is intentionally general in nature Sensor maintenance is highly application specific In general conductivity resistivity measurements do not need much periodic maintenance If the EXA indicates an error in the measurement or in the calibration some action may be needed ref chapter 8 trouble shooting In case the sensor has become fouled an insulating layer may be
64. f 300 U to simulate the mA output load Screened cable to connect the input signals a WU20 cable with a length of 2 metres is preferred A stabilised voltage supply unit nominal 24 Volt DC A current meter for DC currents up to 25 mA resolution 1A accuracy 0 1 O O W Connect the SC202 as shown in Figure 1 Set box 1 to simulate 25 oC 1097 3 U for Pt1000 Before starting the actual test the SC202 and peripheral testing equipment has to be connected to the power supply for at least 5 minutes to assure the instrument is warmed up properly 24 Volts DC Supply DECADE BOX 1 Temperature RESISTANCE DECADE BOX DECADE BOX 2 Conductivity HIGH RANGE RESISTANCE mA Meter DECADE BOX Figure 1 Connection diagram for the overall accuracy test The tolerances specified relate to the performance of the SC202 with calibrated purpose built test equipment under controlled test conditions humidity ambient temperature Note that these 5 are only reproducible when performed with similar test equipment under similar test conditions Under other conditions the accuracy and linearity of the test equipment will be different The display may show values which differ as much as 196 from those measured under controlled conditions 5 Accuracy test mA output circuit Our automated testing facility checks the output accuracy of the instrument with simulated mA output values IM 12
65. herlands C 0344 N200 CONDUCTIVITY RESISTIVITY TRANSMITTER EXA SC202S O FISCO 17 5VDC 380mA 5 32W or 24VDC 250mA 1 2W SUPPLY OUTPUT PROFIBUS PA Liz2 6UH Ci 737pF NIMs DARE 10 TO 55 C SERIAL No EEx ib ia IIC T4 for Ta 10 to 55 C EEx ib ia IIC T6 for Ta 10 to 40 C II 2 1 G KEMA 1069 X IS CL I DIV 1 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C HAZ LOC per Control Drawing FF1 SC202S 00 APPROVED INTRINSICALLY SAFE SECURITE INTRINSEQUE Ex ia CL I DIV 1 GP ABCD T4 for Ta 10 to 55 C T6 for Ta 10 to 40 C Refer to Installation Drawing SC2028 CSA WARNING AVERTISSEMENT Substitution of La substitution de composants components may impair peut compromettre la s curit intrinsic safety intrins que Amersfoort YOKOGAWA The Netherlands Introduction 1 2 NOTE The nameplate will also contain the serial number and any relevant Y Year M Month certification marks Be sure to apply correct power to the unit 2000 M January 1 The first two characters of the serial number refers to the year and 2001 N February 2 month of manufacturing 2002 P March 3 Check that all the parts are present including mounting hardware as 2003 R April 4 specified in the option codes at the end of the model number Fora eese 55 description of the model codes refer to Chapter
66. igits 1 000 04 AIR Zero calibration Zero calibration with dry cell connected START Press YES to confirm selection WAIT Press YES to start after briefly displaying END WAIT END will be displayed Press YES to return to commissioning mode 05 POL CK Polarization check Polarization check off 1 On Polarization check on 06 09 Not used IM 12D7B3 E E 5 10 Parameter setting 5 3 2 Temperature measuring functions Code 10 T SENS Code 11 T UNIT Code 12 IM 12D7B3 E E Selection of the temperature compensation sensor The default selection is the Pt1000 Ohm sensor which gives excellent precision with the two wire connections used The other options give the flexibility to use a very wide range of other conductivity resistivity sensors Celsius or Fahrenheit temperature scales can be selected to suit user preference With the process temperature sensor at a stable known temperature the temperature reading is adjusted in the main display to correspond The calibration is a zero adjustment to allow for the cable resistance which will obviously vary with length The normal method is to immerse the sensor in a vessel with water in it measure the temperature with an accurate thermometer and adjust the reading for agreement Parameter setting 5 11 Code Display Function Function detail z Default values Temperature measuring functions 10 T SENS Temperature se
67. ions IM 12D7B3 E E Parameter setting 5 3 5 2 2 Range IM 12D7B3 E E 5 4 Parameter setting IT 5 2 3 HOLD V r DU z KH mH XDUTP asna inu ps iH M E XH mA rum 1 AH OFF T TNO NO hin V Te LILI XH mA XIEMF H UN Set HOLD fixed value NO YES NO YES KA r XTEMPE XH Lt XH FIxem Vo Zi SERV me NO cl YES M 12D7B3 E E Parameter setting 5 5 5 2 4 Temperature compensation 1 Why temperature compensation The conductivity of a solution is very dependent on temperature Typically for every 1 C change in temperature the solution conductivity will change by a
68. k performance If the unit must be mounted remotely from the sensors WF10 extension cable can be used up to a maximum of 50 metres 150 feet with a BA10 junction box The EXA is delivered with a general purpose default setting for programmable items Default settings are listed in Chapter 5 and again in Chapter 11 While this initial configuration allows easy start up the configuration should be adjusted to suit each particular application An example of an adjustable item is the type of temperature sensor used The EXA can be adjusted for any one of five different types of temperature sensors To record such configuration adjustments write changes in the space provided in Chapter 11 of this manual Because the EXA is suitable for use as a monitor a controller or an alarm instrument program configuration possibilities are numerous Details provided in this user s manual are sufficient to operate the EXA with all Yokogawa sensor systems and a wide range of third party commercially available probes For best results read this manual in conjunction with the corresponding sensor user s manual Yokogawa designed and built the EXA to meet the CE regulatory standards The unit meets or exceeds stringent requirements of EN 55082 2 EN55022 Class A without compromise to assure the user of continued accurate performance in even the most demanding industrial installations IM 12D7B3 E E 2 1 Specifications 2 GENERAL SPECIFICATIONS 2 1
69. l nominal cell constant in service code 03 gives a good indication of the stability of the sensor If the calibrated cell constant differs more than 20 from the nominal cell constant error E3 is displayed IM 12D7B3 E E 6 3 Calibration 6 3 Calibration with HOLD active T is el Z m m by Put the sensor in standard solution Press YES LA m 2g LJ x TI LI uS cm Set the value using the gt A ENT key Select the flashing digit with the key Increase its value by pressing theAkey When the correct value is displayed press ENT to enter the change After briefing displaying WAIT the CAL END message appears The calibration is now complete Put the sensor back in the process and press YES HOLD will be displayed Press NO to turn off HOLD and return to the measuring mode l O isi i ax 73 D m Press the MODE key The legend CALIB appears and the YES NO key prompt flags flash M 12D7B3 E E Maintenance 7 1 7 MAINTENANCE 7 1 Periodic maintenance for the EXA 202 transmitter The EXA transmitter requires very little periodic maintenance The housing is sealed to IP65 NEMA 4X standards and remains closed in normal operation Users are required only to make sure the front window is kept clean in ord
70. nals for the measured parameters can be set up in service codes 30 39 e Diagnostic checks Polarization check and checks on the calibrated cell constant and the adjusted Temperature Coefficient are included in the EXA SC 202 mA e Communications The proprietary HART communication link allows remote configuration and data retrieval through the PC202 communication package This is an excellent tool for the maintenance engineer quality engineer or plant manager Service codes 60 69 are used to set up the communications e Logbook In combination with the communications link a logbook is available to keep an electronic record of events such as error messages calibrations and programmed data changes By reference to this log users can for instance easily determine maintenance or replacement schedules Note On the pages 11 4 amp 11 5 a reference list for the configuration of the SC202 is shown IM 12D7B3 E E 11 4 Appendix 11 6 User setting table FUNCTION SETTING DEFAULTS USER SETTINGS Parameter specific functions 01 SC RES 0 SC 02 4 Elec 0 2 Elec 03 0 10xC 0 10 Factor 1 000 cm 04 AIR 05 POL C K 1 On Temperature measuring functions 10 T SENS 0 Pt1000 11 T UNIT 0 C 12 T ADJ None Temperature compensation functions 20 T R C 25 C 21 SEO 2 1 C T C 2 2 1 C 22 None see 5 2 5 23
71. ngs are referred to the reference temperature as chosen in service code 20 section 5 3 4 default 25 C Calibration is normally carried out by measuring a solution with a known conductivity value at a known temperature The measured value is adjusted in the calibration mode On the next pages the handling sequence for this action is visualized Calibration solutions can be made up in a laboratory An amount of salt is dissolved in water to give a precise concentration with the temperature stabilized to the adjusted reference temperature of the instrument default 25 C The conductivity of the solution is taken from literature tables or the table on this page Alternatively the instrument may be calibrated in an unspecified solution against a standard instrument Care should be taken to make a measurement at the reference temperature since differences in the type of temperature compensation of the instrument may cause an error NOTE The standard instrument used as a reference must be accurate and based on an identical temperature compensation algorithm Therefore the Model SC82 Personal Conductivity Meter of Yokogawa is recommended Typical calibration solutions The table shows some typical conductivity values for sodium chloride NaCl solutions which can be made up in a laboratory Table 6 1 NaCl values at 25 C Weight 96 mg kg Conductivity 0 001 10 21 4 uS cm i NOTE 0 003 30 64 0 uS cm ek For resistivity meas
72. nsor Pt1000 Ni100 Pb36 Pt100 8k55 0 Pt1000 11 T UNIT Display in C or F C F O o nm 12 T ADJ Calibrate temperature Adjust reading to allow for cable resistance Use gt ENT keys to adjust value None 13 19 Not used IM 12D7B3 E E 5 12 Parameter setting 5 4 Temperature compensation functions Code 20 T REP Code 21 T C 1 T C 2 Code 22 MATRX Code 23 T1 T2 TS T4 amp T5 C Code 24 28 L1xT1 L5xT5 NOTES Choose a temperature to which the measured conductivity or resistivity value must be compensated Normally 25 C is used therefore this temperature is chosen as default value Limitations for this setting are 0 to 100 C If T UNIT in code 11 is set to F default value is 77 F and the limitations are 32 212 F In aqdition to the procedure described in section 5 2 4 it is possible to adjust the compensation factor directly If the compensation factor of the sample liquid is known from laboratory experiments or has been previously determined it can be introduced here Adjust the value between 0 00 to 3 50 per C In combination with reference temperature setting in code 20 a linear compensation function is obtained suitable for all kinds of chemical solutions The EXA is equipped with a matrix type algorithm for accurate temperature compensation in various applications Select the range as close as
73. o temperature Cable resistance too high Check cable exceeds 15 C Corroded contacts Clean and reterminate Wrong sensor programmed Reprogram E17 Output span too small Incorrect configuration by user Reprogram E18 Table values make no sense Wrong data programmed Reprogram E19 Programmed values outside acceptable limits Incorrect configuration by user Reprogram E20 All programmed data lost Fault in electronics Contact Yokogawa Very severe interference E21 Checksum error Software problem Contact Yokogawa IM 12D7B3 E E Appendix 11 7 11 8 Device Description DD menu structure The Device Description DD is available from Yokogawa or the HART foundation An example is shown below of the ON LINE menu structure This manual makes no attempt to explain the operation of the Hand Held communicator HHC For detailed operating instructions refer to the HHC user s manual and the on line help structure Level 1 menu Level 2 menu Level 3 menu Level4 menu Level 5 menu Process variab Diag Service Basic Setup Process value Second process value Uncomp process val Weight percentage Temperature of output range Status Hold Error status Hold on off Hold enable disable Hold type Hold value Logbook Logbook conf Logbook 1 Logbook 2 Event1 event64 Rec 1 50 Rec 1 50 Tag Device informat Date Desc
74. possible to the actual temperature concentration range The EXA will compensate by interpolation and extrapolation Consequently there is no need for a 100 coverage If 9 is selected the temperature compensation range for the adjustable matrix must be configured in code 23 Next the specific conductivity values at the different temperatures must be entered in codes 24 to 28 Set the matrix compensation range It is not necessary to enter equal temperature steps but the values should increase from T1 to T5 otherwise the entrance will be refused Example 0 10 30 60 and 100 C are valid values for the T1 T5 The minimum span for the range T5 T1 is 25 C In these access codes the specific conductivity values can be entered for 5 different concentrations of the process liquid each one in one specific access code 24 to 28 The table below shows a matrix entering example for 1 15 NaOH solution for a temperature range from 0 100 C 1 In chapter 11 a table is included to record your programmed values It will make programming easy for duplicate systems or in case of data loss 2 Each matrix column has to increase in conductivity value 3 Error code E4 occurs when two standard solutions have identical conductivity values at the same temperature within the temperature range Table 5 2 Example of user adjustable matrix Matrix Example Example Example Example Example Code 23 Temperature T1 15 0 C 25 C 50 C 75
75. pproximately 2 96 The effect of temperature varies from one solution to another and is determined by several factors like solution composition concentration and temperature range A coefficient o is introduced to express the amount of temperature influence in 96 change in conductivity C In almost all applications this temperature influence must be compensated before the conductivity reading can be interpreted as an accurate measure of concentration or purity Table 5 1 NaCl compensation according to IEC 746 3 with Tref 25 C T Kt a T Kt a T Kt a 0 0 54 1 8 60 1 76 2 2 130 3 34 2 2 10 0 72 1 9 70 1 99 2 2 140 3 56 2 2 20 0 90 2 0 80 2 22 2 2 150 3 79 2 2 25 1 0 90 2 45 2 2 160 4 03 2 2 30 1 10 2 0 100 2 68 2 2 170 4 23 2 2 40 1 31 2 0 110 2 90 2 2 180 4 42 2 2 50 1 53 2 1 120 3 12 2 2 190 4 61 2 2 200 4 78 2 2 2 Standard temperature compensation From the factory the EXA is calibrated with a general temperature compensation function based on a sodium chloride salt solution This is suitable for many applications and is compatible with the compensation functions of typical laboratory or portable instruments A temperature compensation factor is derived from the following equation v f x 100 T m T Is a In which o Temperature compensation factor in C T Measured temperature C K Conductivity at T T Reference temperature C Ke Conductivity at T 3 M
76. rameter setting 5 2 Commissioning mode 5 2 1 Introduction In order to obtain peak performance from the EXA SC202 you must set it up for each custom application Output ranges mA Hold Temp1 2 Service mA output is set as default to 0 1 mS cm or 0 19 99 MQ cm For enhanced resolution in more stable measuring processes it may be desirable to select for example 5 10 uS cm range The EXA SC202 transmitter has the ability to HOLD the output during maintenance periods This parameter should be set up to hold the last measured value or a fixed value to suit the process First and second temperature compensation types and values see also section 5 2 4 NaCl is the default compensation and is used for neutral salt solutions Strong solutions of salts are compensated as are process waters and pure and ultrapure water TC temperature coefficient compensation uses a linear temperature compensation factor This can be set by calibration or configuration Matrix compensation is an extremely effective way of compensation Choose from standard matrix tables or configure your own to exactly suit your process This selection provides access to the service menu What follows are pictorial descriptions of typical frontplate pushbutton sequences for each parameter Setting function By following the simple YES NO prompts and arrow keys users can navigate through the process of setting range hold and service funct
77. re present and correctly fitted Safety Test The minus and the external ground terminal of the housing are connected to a Voltage generator 100 VDC The measured impedance value should be over 9 5 MQ Terminal 14 and the external ground terminal of the housing are connected to a Voltage generator 500 VAC RMS for 1 minute The leakage current should remain below 12 mA Accuracy Testing Our automated testing facility checks the resistivity input accuracy of the instrument using a calibrated variable resistor decade resistor box Accuracy Testing of all supported temperature elements Our automated testing facility checks the input accuracy of the instrument using a calibrated variable resistor decade resistor box to simulate the resistance of all temperature elements IM 12D7B3 E E 12 1 Test Certificate 4 3 Overall Accuracy Test This test can be performed by the end user to check the overall accuracy of the instrument The data specified on the Test certificate are results of the overall accuracy test performed during production and can be reproduced by performing similar tests with the following test equipment 1 Avariable resistor resistor decade box 1 to simulate the temperate element All tests are performed simulating 250C 77 oF 2 A second variable resistor box 2 to simulate the conductivity Recommended is a resistor decade box in steps of 1 Q between 2 Q and 1200 kQ accuracy 0 1 A fixed resistor o
78. readings are simply the reciprocal values of the conductivity values In the example mentioned above the contact will close at an uncompensated resistivity of 1 1 76 uS cm 0 568 MO cm IM 12D7B3 E E USP 9 2 9 4 Setting up SC202 for USP First enable USP in service code 57 Change the setting from O default to 1 enabled This activates uncompensated conductivity in the display menu The E13 feature is also enabled For E13 the FAIL flag is triggered when the uncompensated conductivity exceeds the relevant value in the graph Conductivity limit as a function of Temperature 3 5 3 E S 2 5 6 2 5 o 1 5 1 0 5 0 0 25 50 75 100 Temperature in C Fig 9 1 IM 12D7B3 E E 10 1 Spare parts 10 SPARE PARTS Table 10 1 Itemized parts list Item No Description Part no 1 Cover assembly including window gasket and fixing screws K1542JZ 2 Window K1542JN 3a Internal works assembly general purpose K1544DJ 3b Internal works assembly intrinsically safe K1544DK 4 Digital display board K1544DB 5a Analogue input board general purpose K1544SK 5b Analogue input board intrinsically safe K1544SE 6 Ribbon cable K1544PH 7 1544 8 Lithium cell battery 154 9
79. riptor Message Write protect Manufacture device id Detailed Setup 4 Param Specific Process unit 2 or 4 electrodes Nominal CC CC after calibration Polarization check Temp Specific Temp sensor ON LINE MENU Temp unit Device setup Primary value Temp compens Reference temp Analog output Temp compens 1 Lower rangeval TC1 percentage Upper rangeval Temp Compens 2 TC2 percentage Matrix selection Matrix table Matrix temp 1 5 Matrix1_1 5_5 Output function mA function Burn function mA Table Table 0 100 User Interface Error programming Error 1 Error 13 Display 777777 Auto return E5 limit E6 limit Weight 0 Weight 100 Review L Model Display format Manufacturer USP Distributor Passcode Maintenance TA Commissioning Service Descriptor Message Date Device id Write protect Universal revision Transmitter revision Software revision Hardware revision Polling address Req preambles IM 12D7 B3 E E 11 8 Appendix 11 9 Field Change Order 11 9 1 Changes made by software release 1 1 e PH201 communication added for Japanese market 11 9 2 Changes made by software release 1 2 e E20 is cleared after the programmed data was recovered 11 9 3 Changes made by software release 2 1 e Communication is default set to enabled write
80. rs and transmitter a junction box and extension cable may be used The Yokogawa BA10 junction box and the WF10 extension cable should be used These items are manufactured to a very high standard and are necessary to ensure that the specifications of the system are not compromised The total cable length should not exceed 60 metres e g 5 m fixed cable and 55 m extension cable Note 17 of both WF10 and BA10 do not need to be used IM 12D7B8 E E Installation and wiring 3 8 S TRANSMITTER CONVERTER se Sp sel Sj I 5 Core 6 Screen SS S S z White Co axial cable O 11 SS S Overall Screen gt Thermistor Temperature sensor S TSH 12 aS S SS S E 3 Core 7 Screen WF10 Cable 17 S Brown Co axial Cable 13 gt Secondary Coil S E 15 Hed gt Primary Coil 2 Blue 16 PU m 14 Ground Shield Overall shield Fig 3 12 Connection of VVF10 extension cable and BA10 BP10 iunction box NOTE See page 3 10 for termination for WF10 cable in combination with EXA SC gt Connections differential 4 electrode temp IM 12D7B3 E E 3 9 Installation and wiring Extension cable may be purchased in bulk quantities cut to length Then it is necessary to
81. s What follows is a brief outline of some of the EXA SC202 troubleshooting procedures followed by a detailed table of error codes with possible causes and remedies 8 1 Diagnostics 8 1 1 Off line checks The EXA SC202 transmitter incorporates a diagnostic check of the adjusted cell constant value at calibration If the adjusted value stays within 80 120 of the nominal value set in service code 03 it is accepted Otherwise the unit generates an error E3 With a HART communication package it is possible to scroll the calibration data in a logbook function The EXA also checks the temperature compensation factor while performing manual temperature compensation as described in section 5 2 5 If the TC factor stays within 0 00 to 3 50 per C it is accepted Otherwise E2 will be displayed 8 1 2 On line checks The EXA performs several on line checks to optimize the measurement and to indicate a fault due to the fouling or polarization of the connected sensor The fault will be indicated by the activation of the FAIL flag in the display During measurement the EXA adjusts the measuring frequency to give the best conditions for the actual value being measured At low conductivity there is a risk of error due to the capacitive effects of the cable and the cell These are reduced by using a low measuring frequency At high conductivity the capacitive effects become negligible and errors are more likely to be caused by polarization or fo
82. terminate the cable as shown below Termination procedure for WF10 cable 1 Slide 3 cm of heat shrink tube 9 x 1 5 over the cable end to be terminated 2 Strip 9 cm of the outer black insulating material taking care not to cut or damage internal cores 3 cm l 9cm gt heat shrink remove insulation Fig 3 13a 3 Remove loose copper screening and cut off the cotton packing threads as short as possible 4 Strip insulation from the last 3 cm of the brown and the white coaxial cores 3 t 3cm cotton threads Fig 3 13b 5 Extract the coaxial cores from the braid and trim off the black low noise screening material as short as possible 6 Insulate the overall screen and drain wire 14 and the 2 coaxial screens with suitable plastic tubing 7 Strip and terminate all ends with suitable crimp terminals and identify with numbers as shown Fig 3 13c 8 Finally shrink the overall heat shrink tube into position IM 12D7B3 E E Operation 4 1 4 OPERATION DISPLAY FUNCTIONS AND SETTING 4 1 Operator interface This section provides an overview of the operation of the EXA operator interface The basic procedures for obtaining access to the three levels of operation are described briefly For a step by step guide to data entry refer to the relevant section of this user s manual Fig
83. tions Code 1 SC RES Code 2 4 ELEC Code 3 0 10xC Code 4 AIR Code 5 POL CK IM 12D7B3 E E Choose the required parameter either conductivity or resistivity If the parameter is changed the instrument will go into reset to load parameter specific default values followed by starting measurement For all other service codes the instrument will return to commissioning mode after the service code setting is finished Choose the required sensor type Normally conductivity and or resistivity measurements are done with 2 electrode type sensors At high conductivity ranges polarization of the electrodes may cause an error in conductivity measurement For this reason 4 electrode type sensors may be necessary Enter the factory calibrated cellconstant mentioned on the textplate or on the fixed cable This avoids the need for calibration Any value between 0 008 and 50 0 cm may be entered The position of the decimal point may be changed according the visual description in the right handed page of section 5 2 2 NOTE If the actual cell constant is changed after a calibration or if the entered cell constant differs from previous value then the message RESET will appear on the second line display After pressing YES the entered value becomes the new nominal and calibrated cell constant After pressing NO the update procedure of the cell constant entry is canceled To avoid cable influences on the measurement a zero calibration
84. transmitter Connect the supply to the terminals marked and G as is indicated in figures 3 11 n 3 4 3 Switching the instrument on After all connections are made and checked the power can be switched on from the distributor Observe the correct activation of the instrument at the display If for any reason the display does not indicate a value consult the trouble shooting section 11 white 12 brown 13 green db CI eR 14 yellow 15 grey 16 pink Fig 3 7 Connection diagrams IM 12D7B3 E E 3 5 Sensor wiring Refer to figure 3 9 which includes drawings that outline sensor wiring Installation and wiring 3 6 The EXA SC202 can be used with a wide range of commercially available sensor types if provided with shielded cables both from Yokogawa and other manufacturers The sensor systems from Yokogawa fall into two categories the ones that use fixed cables and the ones with separate cables To connect sensors with fixed cables simply match the terminal numbers in the instrument with the identification numbers on the cable ends The separate sensors and the WUAO LHhh cables are also numbered but the numbers do not always match with the terminal numbers in the instrument Figure 3 9 indicates how to connect the different sensor types CONDUCTIVITY RESISTIVITY TRANSMITTER 11 TEMPERATURE 12 TEMPERATURE O 13 CELL 14 CELL 15 CELL
85. twice when hold is activated YES NO keys These are used to select choices from the menu YES is used to accept a menu selection NO is used to reject a selection or to move ahead to the next option DATA ENTRY keys AA 9 la emr is used as a cursor key Each press on this key moves the cursor or flashing digit one place to the right This is used to select the digit to be changed vvhen entering numerical data A is used to change the value of a selected digit Each press on this key increases the value by one unit The value can not be decreased so in order to obtain a lower value increase past nine to zero then increase to the required number ENT When the required value has been set using the gt and keys press ENT to confirm the data entry Please note that the EXA does not register any change of data until the ENT key is pressed This is the commissioning mode key It is used to obtain access to the commissioning menu This can only be done with the cover removed or opened Once this button has been used to initiate the commissioning menu follow the prompts and use the other keys as described above IM 12D7B3 E E Operation 4 3 4 3 Setting passcodes 4 3 1 Passcode protection In Service Code 52 EXA users can set passcode protection for each one of the three operating levels or for any one or two of the three levels This procedure should be completed after the initial commissioning setup
86. uling of the cell These errors are decreased by increasing the measuring frequency At all values the EXA checks the signal from the cell to search for distortion which is typical of capacitive or polarization errors If the difference between pulse front and pulse rear is gt 20 an error E1 will be displayed and the FAIL flag in the display is activated In service code 05 it is possible to turn this check on and off IM 12D7B3 E E Troubleshooting 8 2 The following error message table gives a list of possible problems that can be indicated by the EXA Table 8 1 Error Codes Code Error description Possible cause Suggested remedy E1 Polarization detected on cell Sensor surface fouled Clean sensor and calibrate Conductivity too high Replace sensor E2 Temperature coefficient out of limits Incorrect field calibration of TC Re adjust 0 3 5 C Set calculated TC E3 Calibration out of limits Calibrated value differs more than Check for correct sensor 20 of nominal value programmed Check for correct unit uS cm in code 03 mS cm kQ cm or MQ cm Repeat calibration E4 Matrix compensation error Wrong data entered in 5x5 matrix Re program E5 Conductivity too high or resistivity too low Incorrect wiring Check wiring 3 5 Limits set in service code 54 Internal leakage of sensor Replace sensor Defective cable Replace cable EG Conductivity too low or resisti
87. uoo jueuudinbe ou02 02 Vd3N ISNv po jeoujoe 3 jeuoneN eu pue suoneoo peyisse 2 SnopiezeH 10 suu s S ejes Ajeorsuuju jo uogejejsu L0 90 ZL dy VSI ISNV YUM e2uepJoooe ur eq pinoys uonejejsuy uonelle sul s JOINJOeJNUeW v mooy 3ueuudinbe siy Sullleysul u uAA 1HH 4909 4122 lt PTS 1HHO 49895 4UZZ lt O WU 001 gt 1HHI 1 Jo 291 A GLE 5 1HHA A 9A age y euiuuejep o iddns Jamod ialueg au pue HH u JO Bulmep jonuoo sJeJnjoejnueuu au o 1949Y p Aoiddy W4 eq 1snui jeuruue pied pueH eu z asnBy ees SZOZOS VX3 y Jo seui Ajddns Jamod y o pejoeuuoo S HH JI 9092 Hrizz lt 77 99995 022 lt O WW 001 gt 71 40 J A SLE gt A 40 A sjueujeumbaiJ Buwojoj ay sjeeui jeu p sn eq Aew iddns Jamod Jo peroiddy W Auw ees SZ0Z2S VX3 94 JO Saul Ajddns eod eu pejoeuuoo jou S 1 HH JeuruJe Diet pue 11 HW 002 1 eouejonpur eujejxe uunuixeW JU EOL O eouejyoedeo jeujejxe uinuixe Hii 22 7 eougjonpur eWay 2 JU ZZ O eouejbedeo euiejui awe M d 3ndur wnwxe y vul 8721 3ueuno indino ulnulxeyy yw QOL SE Juano yndul uinuuixe W AVL A eBeyoA indino wnuixeyy AS LE XA BelloA ndul wnwixey 9 u8nouu LL sjeuiuJej noso 3ndur suas pue sjeuiuue Wun Ajddng 1
88. ure 4 1 shows the EXA operator interface LEVEL 1 Maintenance These functions are accessible by pushbutton through a flexible front cover window The functions make up the normal day to day operations that an operator may be required to complete Adjustment of the display and routine calibration are among the features accessible in this way See table 4 1 LEVEL 2 Commissioning A second menu is exposed when the EXA front cover is removed and the display board is revealed Users gain access to this menu by pressing the button marked in the lower right of the display board This menu is used to set such values as the output ranges and hold features It also gives access to the service menu See table 4 1 LEVEL 3 Service For more advanced configuration selections press the button marked then press NO repeatedly until you reach SERVICE Now push the YES button Selecting and entering Service Code numbers in the commissioning menu provide access to the more advanced functions An explanation of the Service Codes is listed in chapter 5 and an overview table is shown in chapter 11 Table 4 1 Operations overview Routine Function Chapter Maintenance CALIB Calibration with a standard solution or sample 6 DISPLAY 1 amp 2 Read auxiliary data or set message display 4 HOLD Switch hold on off when activated 5 Commissioning OUTPUT Adjust the output range 5 SET HOLD Activate the hold function 5 TEMP 1
89. urement the standard resistivity 0 005 50 106 uS cm I units of the calibration solution can be calculated as 0 01 100 210 uS cm follows 0 03 300 617 uS cm fos SS EE R 1000 G kQ cm if G uS cm 0 1 1000 1 99 mS cm 0 3 3000 5 69 mS cm Example 0 5 5000 9 48 mS cm p 75 0 001 weight I 7 7 R 1000 21 4 46 7 kQ cm 3 30000 48 6 mS cm m i 50000 81 0 mS cm 10 100000 140 mS cm IM 12D7B3 E E Calibration procedure Calibration 6 2 ENT gt A C gt C 3 H N mz mm YOKOGAWAd Put the sensor in standard solution Press YES Set the value Press the MODE key The legend CALIB appears and the YES NO key prompt flags flash using the s A ENT key Select the flashing digit with the gt key Increase its value by pressing the Akey When the correct value is displayed press ENT to enter the change After briefing displaying WAIT the CAL END message appears The calibration is now complete Put the sensor back in the process and press YES The cell constant is automatically updated after the calibration and the new value can be read on the display as described in section 4 5 gt The calculation is as follows Cell constant in cm Conductivity of calibration solution in mS cm x Cell resistance in kOhm Comparing this calibrated cell constant with the initia
90. vity too high Dry sensor Immerse sensor Limits set in service code 54 Incorrect wiring Check wiring 3 5 Defective cable Replace cable E7 Temperature sensor open Process temperature too high or too low Check process Pt1000 T gt 250 C or 500 F Wrong sensor programmed Check model code sensor Pt100 Ni100 T gt 200 C or 400 F Incorrect wiring Check connections and cable 8k55 T 10 C or 10 F PB36 T 20 C or O F ES Temperature sensor shorted Process temperature too high or too low Check process Pt1000 Pt100 Ni100 T 20 C or O F Wrong sensor programmed Check model code sensor 8k55 PB36 T gt 120 C or 250 F Incorrect wiring Check connections and cable E9 Air set impossible Too high zero due to cable capacitance Replace cable E10 EEPROM write failure Fault in electronics Try again if unsuccessful contact Yokogawa E13 USP limit exceeded Poor water quality Check ion exchangers E15 Cable resistance influence to temperature Cable resistance too high Check cable exceeds 15 C Corroded contacts Clean and reterminate Wrong sensor programmed Reprogram E17 Output span too small Incorrect configuration by user Reprogram E18 Table values make no sense Wrong data programmed Reprogram E19 Programmed values outside acceptable limits Incorrect configuration by user Reprogram E20 All programmed data lost Fault in electronics Contact Yokogawa Very severe interference E21 Checksum error Software

Manual - Applied Measurement and Control

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