Model FLXA21 2-Wire Analyzer Start
Contents
1. GL zb Uu For sensor 1 cable 4 M6 depth 5 For sensor 2 cable Plate Only with coating 26 5 25 3 For power supply 44 ki Functional ground 137 FB4 06 3 Figure A 10 Housing dimensions and layout of glands Stainless steel housing Unit mm ickness 1to12 p mr 2 M5 length 35 Panel 134 138 o Plate H Only with coating 4 M6 ER d 195 100 185 Spacing panel cutout Tighten the four screws to a torque of 2 Nem FB4 Tea Figure A 11 Panel mounting Option PM UM Stainless steel housing IM 12A01A02 12E 7th Edition Apr 17 2015 00 Revision Record Manual Title Model FLXA21 2 Wire Analyzer Start up Manual Manual No IM 12A01A02 12E Apr 2015 7th Edition Change of type of ground of the stainless steel housing pages 14 and 15 Note for wall mounting pages 14 and 15 Oct 2014 6th Edition Correction of discriptions and words Oct 2013 5th Edition Addition of MONITOR display Correction of discriptions and words Sep 2013 4rd Edition Pages are significantly reduced Feb 2012 3rd Edition Addition of descriptions and drawings for intrinsically safe type Change of descriptions of messages on displays Change of figures of housing due to change of position of external grounding f2. User s Manual Model FLXA21 FLEX A 2 Wire Analyzer SENCOM Start up Manual IM 12A01A02 12E vigilant This Start up Manual explains mainly the installation and wiring of the FLXA21 For detailed information and other information the User s Manual of the FLXA21 should be referred to YOKOGAWA A IM 12A01A02 12E f 7th Edition Yokogawa Electric Corporation Toc 1 Model FLXA21 2 Wire Analyzer Start up Manual IM 12A01A02 12E 7th Edition CONTENTS 1 Wiring and Installation iii canteen cen eerie els 1 1 1 Installati n EE 1 1 2 Wiring the power suppl ccc cceseeeeseeeeseeeeeeeeeeseeeeseeeeseeeeseeeesaeeeeeeeeeeeeeneeeenes 1 1 3 WINING the SONS OF EE 2 1 3 1 PH Measurement scissioni iasau sairiduiaduandniadria indad iaaiiai adani 2 1 3 2 ORP Measurement nnee nne 3 1 3 3 SC Measurement E 4 1 3 4 ISC7Meosutermment esoe EENS aiai iaia Raa 5 1 3 5 DO Measurement AA 5 1 3 6 SENCOM pH ORP Measurement 6 1 3 7 Wiring of YOKOGAWA sensorg 6 1 3 8 Wiring of HAMILTON sensors AA 7 2 El E 10 2 1 Change language esceescssssseesseesseesseesseesseesseessnesseesseeseeaseeeseeesenesseesseeseeusseeeeees 10 2 2 Quick SQ EE 10 2 3 Basic operation when two sensors are connected sccceseneeeeeneeeeeene 11 3 COMMISSIONING BEE 12 4 K SSEN 13 se 11112 b E 14 A1 Installing the cable glandS ccccsecssesseeesesseesseesseeeseeeseeeseesseesseesseesseesseeseees 14 A2 Mounting method
3. closed and the power can be switched on A WARNING When one of the modules has been removed and replaced make sure you lock the module securely in place Confirm that all locking tabs including for BLANK slots are in Lock position before you close the front panel If the locking tabs are in Unlock position the front panel may be interfered with locking tabs A WARNING Do not tighten up four front panel screws one by one Each front panel screw should be tightened up in two times of screwing And firstly the screw at the upper left should be screwed a bit the next is at the lower right third is at the upper right and fourth is at the lower left The second round is the same sequence again to tighten up four screws Do not use an electric screwdriver with high revolutions If an electric screwdriver is used for these front panel screws the revolutions of the electric screwdriver should be less than 400 rpm Four screws should be tightened to the following torque 0 8 to 0 9 Nem for the plastic housing 1 5 to 1 6 Nem for the stainless steel housing IM12A01A02 12E 7th Edition Apr 17 2015 00 lt 1 Wiring and Installation gt 9 NOTE The special grommet is intended to be used to seal the multiple cables from the Yokogawa flow fittings such as FF20 The designated cables are WU20 sensor cables which are approximately 5 mm 0 2 in diameter and K1500FV liquid earth cables which are approxi
4. A Yes No VP8 DC OXYFERM Green Hamilton vpioxyGoLD PO White Green Yellow Blam Ree VP Cable OXYSENS DO Yellow Blue Black Clear Brown Fixed Cable pHEASY pH E F B D A B Yes No POLILYTE pH Blue Red White Yes No iets Cable Black Hamilton POLILYTE VP pH White Green Red Blue Clear Yes No VP Cable POLILYTE Black Hamilton PLUS VP pH White Green Red Blue Clear Yes No VP Cable Color coding of Variopin cables PIN A B C D E F G H s Black Hamilton VP6 SC Clear Red Grey Blue White Green Black Black Red Red Clear Shield Clear Shield WU20 V S VP6 SC Clear Brown Black Yellow Red Blue Brown Brown White White Core Shield Cored Shield Hamilton VP8 DC White Green Yellow Brown WU20 V D VP8 DC Red Blue Yellow IM 12A01A02 12E 7th Edition Apr 17 2015 00 lt 1 Wiring and Installation gt 8 NOTE When two sensor modules are used the upper level module is for input 1 and the lower level module is for input 2 For ease of installation first wire input 2 sensor on the lower level module A and attach the wiring cover then wire input 1 sensor on the upper level module B and replace the module wiring cover C When all wiring is completed and all wiring covers have been installed the front panel can be
5. Temperature 20 to 55 C Humidity 10 to 95 RH Non condensing e Water Protection IP66 except Canada NEMA 4X except Canada Type 3S 4X Canada If the instrument is installed outside and exposed to direct sunlight a sun shade hood should be used The FLXA21 can be mounted on a wall pipe or panel when the mounting kit is ordered For dimensional information please refer to the Appendix A2 Mounting methods Wiring the power supply FLXA21 is a 2 wire transmitter and can be powered by a DC power supply of max 40 VDC The Power Supply voltage depends on e The load resistance impedance of electronic equipment typically 250 Ohm e Number of input modules 1 sensor measurement or 2 sensor measurement One 1 Sensor module 1 input 16 to 40 V DC for pH ORP SC and DO 17 to 40 V DC for ISC 21 to 40 V DC SENCOM pH ORP Two 2 Sensor modules 2 inputs 22 8 to 40 V DC for pH ORP SC and DO Media No IM 12A01A02 12E 7th Edition Apr 2015 YK IM 12A01A02 12E 7th Edition Apr 17 2015 00 All Rights Reserved Copyright 2010 Yokogawa Electric Corporation lt 1 Wiring and Installation gt 2 N Ke ao N oO a 1000 1000 600 i 1 Digital Communication 1 Range HART Ee EE e 250 _______________ end aay Load resistance Q Load resistance Q 0 1718 22 86 24 7 40 0 161718 22 8 24 7 40 Voltage V 18 2 21 Voltage V r Figure2 Supply Voltage and Load Resistance Figure 1 S
6. be used When you must open the front cover and or glands make sure that the seals are clean and correctly fitted when the unit is re assembled in order to maintain the housing s weatherproof integrity against water and water vapor The pH measurement uses high impedance sensors and may otherwise be prone to problems caused by exposure of the circuitry to condensation CAUTION Never use harsh chemicals or solvents In the event that the window does become heavily stained or scratched refer to the parts list for replacement part numbers IM 12A01A02 12E 7th Edition Apr 17 2015 00 14 Appendix A1 Installing the cable glands Before installing this instrument open the front panel and remove the wiring cover and then install the cable glands A CAUTION Be careful not to lose the wiring cover screws The supplied cable glands are for cables with an outside diameter of 6 to 12 mm 0 24 to 0 47 inches Unused cable entry holes must be sealed with cable glands including the supplied close up plugs For sensor 1 cable For sensor 1 cable For sensor 2 cable For sensor 2 cable A hole is drilled if specified For power supply For power supply For grounding cable Functional ground Stainless Steel Housing Plastic Housing Cable gland diagram F0202 ai Figure A 1 CAUTION Be careful not to be injured by the sharp hole edges on the housing Instal
7. mV ax 6 30 E Tag FLXA21 PH Oi IM 12A01A02 12E 7th Edition Apr 17 2015 00 lt 3 Commissioning gt 12 3 Commissioning NOTES for Quick Setup a pH measurement module Under measurement a selection is made for pH ORP or pH amp ORP The selected measurement must be in accordance with the sensor wiring When rH measurement is requested pH amp ORP must be chosen on this level The rH must then be selected in the commissioning menu b SC measurement module Under measurement a selection is made between Conductivity Resistivity Concentration or Concentration plus Conductivity On this level only Conductivity or Resistivity can be selected Settings for Concentration measurement must be done in the commissioning menu c DO measurement module Under sensor type a selection is made for Galvanic or Polarographic The selected sensor type must be in accordance with the sensor wiring Otherwise the analyzer or sensor can be damaged IM 12A01A02 12E 7th Edition Apr 17 2015 00 lt 4 Maintenance gt 1 3 4 Maintenance E Periodic maintenance The FLXA21 requires very little periodic maintenance except to make sure the front window is kept clean in order to permit a clear view of the display and allow proper operation of the touchscreen 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
8. 01A02 12E 7th Edition Apr 17 2015 00 lt 1 Wiring and Installation gt 4 FLXA21 11 Temperature 12 Temperature 13 Glass S 14 Solution ground 15 Metal 16 Shield i 17 Shield TC PH Liquid ORP Earth For pH Compensated ORP sensors the jumper is placed as illustrated 13 i719 1516 eeEEREREEE Input 2 Input 1 Metal sensor on Input 1 pH glass as reference on Input 2 1 3 3 SC Measurement Contacting Conductivity SC sensors are connected to the module as follows The above diagram shows wiring for 4 electrode conductivity sensors such as SC42 SP34 large bore series For 2 electrode conductivity sensors such as SC42 Sp36 small bore series jumpers must be installed between terminals 13 14 and between terminals 15 16 as shown in the diagram below IM 12A01A02 12E 7th Edition Apr 17 2015 00 lt 1 Wiring and Installation gt 5 1 3 4 ISC Measurement ISC40 sensors are connected to the module as follows 11 Temp 13 Receive coil SEI 17 shield 14 Sensor shield internal 15 Drive coil 16 shield The sensors are supplied with integral cables and each individual wire is marked with the corresponding terminal numbers 1 3 5 DO Measurement The input module for DO measurement is suitable for different types of DO sensors i Galvanic sensors like model DO30G ii Polarographic sensors like HAMILTON S Oxyferm and Oxygold The connection is as follo
9. e Yes Yes WU20 Triax SC42 SC 11 12 13 14 15 16 WU40 cable SC4A SC 11 12 13 14 15 16 Fixed Cable SM21 SR20 H Green Green Yellow Black Red Red Yellow Yes No WU20 Color SM60 H Red Blue Red Red Blue Blue Coded Coax SM29 Yellow Red Red Yellow WU20 Color SR20 ORF Red B ack Red Blue Blue e Coded Coax Yellow 13 14 SxX42 sc Brown Brown i Red and Sensor Wiring Green 15 16 Board Terminals Sensor Measurement Remark 82 83 84 86 87 FU20F pH pH amp ORP rH 82 83 84 86 87 WU11 Cable IM 12A01A02 12E 7th Edition Apr 17 2015 00 lt 1 Wiring and Installation gt 7 1 3 8 Wiring of HAMILTON sensors Board Terminals Input 2 Input 1 Sensor Measurement 1 12 13 14 15 16 7 48118113 19 15 Jumper Remark CHEMTRODE pH Blue Red No 13 14 WU20D Cable CHEMTRODE ORP ORP Yes 13 14 ca pH E F B A No 13 14 VP6 SC CLARITRODE pH Blue Red White Yes No 13 14 Kee ae CC pH E F B A Yes No VP6 SC CONDCUELL sc White Blue Green Pink Brown Yellow Fixed Grey Cable CONDCUELL Black Grey Hamilton VP SC Blue Yellow Black Shiela EISE Shield VP Cable EASYFERM pH Blue Red White Yes No 13 14 SE SE pH E F B A Yes No 13 14 VP6 SC INCHTRODE pH E F B D A Yes No VP6 SC WU20D MECOTRODE pH Blue Red White Yes No 13 14 Cable EE aes pH E F B
10. he sensor insure that a jumper for low impedance sensor inputs is installed The jumpers can be found on the plastic sensor module cover and can be stored in the lower level module wiring cover e pH Glass Electrode is a high impedance sensor input e Standard reference electrodes and an ORP REDOX electrode are low impedance sensor inputs e Special electrodes using 2 glass sensor example Pfaudler SC24V do not need jumpers Terminals 15 16 are identified as input 1 High Impedance and terminals 13 17 are defined as input 2 Low Impedance For conventional pH sensors the jumper is placed as illustrated 13 i719 Input 2 Input 1 Glass sensor on Input 1 Reference sensor on Input 2 1 3 2 ORP Measurement The ORP measurement uses the same sensor input module as the pH measurement It is not uncommon to measure ORP as process variable and a pH Glass electrode as reference This is the case with rH measurement and with pH compensated ORP measurement Conventional ORP sensors are connected to the module as follows FLXA21 235 SS5 S535 SS 011 Temperature ee 12 Temperature 13 Reference 14 Solution ground 15 Metal measure 16 Shield i 17 Shield dl TC REF Liquid ORP For conventional ORP sensors the jumpers are placed as illustrated Input 2 Input 1 Metal sensor on Input 1 Normal reference on Input 2 pH Compensated ORP sensors are connected to the module as follows IM 12A
11. l the supplied cable gland as shown in Figure A 2 When using an adapter for conduit work see Figure A 3 Cable gland nut Gaskets ee S er Gable gland Gable gland Cable gland cap ___ Cable gland cap Sleeve for grounding cable line of the plastic housing gt Im ll Rubber plug without wiring Plastic Housing Stainless Steel Housing Cable glands F0203 ai Figure A 2 The unused cable glands should be sealed with the supplied close up plug A DANGER When installing cable glands hold cable glands and tighten cable gland nuts to a torque of 6 Nem If cable glands not gland nuts are tightened O rings may be come out from the proper positions Adapter for conduit work When protecting the cable with a conduit use an adapter option codes CB4 CD4 or CF4 Set the adapter as shown in figure 2 4 instead of using the supplied M20 cable gland Nut Unit mm inch t Approx j N Packing 55 2 2 49 F 1 93 G1 2 screw CB4 1 2 NPT screw CD4 Adapter M20x1 5 screw CF4 EE Figure A3 Adapter for conduit work option A DANGER When using a cable conduit use a flexible conduit to avoid stress on the conduit adapter The stress on the conduit adapter may damage the housing A2 Mounting methods Refer to figures 2 25 to 27 and 2 31 to 33 The FLXA21 has a various kinds of mounting capabilities Panel mounting using
12. mately 2 5 mm 0 1 in diameter For sensor systems using a single cable like the FU20 FU24 and the PR10 PD20 PF20 and PS20 the standard gland will accommodate the cable adequately Single cables between approximately 6 mm and 12 mm 0 24 and 0 47 can be sealed properly with these glands and the standard tule Remove standard tule Grommet set Grommet set use Content of grommet set IM 12A01A02 12E 7th Edition Apr 17 2015 00 2 2 1 2 2 lt 2 Operation gt 1 0 Operation When all wiring is completed turn on the power to the instrument Make sure that the LCD screen turns on and then wait for the Quick Setup menu to be displayed Follow the on screen instructions for set up and calibration If the instrument is not configured correctly an error indicator may be displayed or the measurement values displayed may be incorrect Consult the User s Manual supplied on CD with the analyzer and check the initial settings and change them to suit your purpose Basic operation of the software is similar the EXAxt 450 series For more detailed information please refer to the User s Manual of the FLXA21 Change language The default language setting for the FLEXA is English To select a different language other than English follow the steps below Quick setup Start quick setup Q FLEXA Change language M Change language f Warning S The instrument will restart t Are you sure Yes vd Enter E
13. nter Quick setup The Quick setup menu is used to program the basic items necessary to make the transmitter operational such as the date time and sensor settings The detailed settings are described in the Commissioning in the User s Manual for example chapter 4 for pH ORP Each time the FLXA21 is started up this menu is displayed If it is not necessary to change the setup you may bypass the Quick setup by selecting No or Al When no operation is performed for 10 minutes the screen changes to the monitor display or the main display or home display automatically IM 12A01A02 12E 7th Edition Apr 17 2015 00 2 3 Change language x MONITOR Display Quick setup Start quick setup Q Ces No 10 38 lt 2 Operation gt 11 Basic operation when two sensors are connected When 2 sensor modules are installed the Home display shows both sensor information at one time while the Main display will show the individual sensor information If only one sensor module is installed the is grayed out and disabled on the Main display On the Home display pressing the 1st sensor top information or the 2nd sensor bottom information causes the Main display of the selected sensor to appear Main Display Home Display E Tag FLXA21 PH pH 25 0 C ew 10 38 C E 2 Tag FLXA21 PH pH 24 9 C 24
14. optional mounting hardware PM or UM Wall mounting using optional mounting hardware U or UM for example on a solid wall Pipe mounting using optional mounting hardware U or UM on a horizontal or vertical pipe Nominal size 50A Note The universal mounting kit UM contains the pipe and wall mounting hardware U and the panel mounting hardware EM A2 1 Plastic housing 151 Uit mm 144 141 rey Gi ei 144 For sensor 1 cable 4 M6 depth 5 For sensor 2 cable 26 5 26 5 24 7 For power supply For grounding cable Figure A 4 Housing dimensions and layout of glands Plastic housing Unit mm go go AS Ki g 5 D o 8 138 2 M5 length 35 d 3 4 M6 D 8 e el e eiS 185 Li bac o Spacing panel cutout Tighten the four screws to a torque of 2 Nem 178 oa mat Figure A 5 Panel mounting Option PM UM Plastic housing Unit mm 144 164 13 4 M6 o o 3 a A Ee l 0 A b For wall mounting A S les A p 70 100 Tighten the four screws to a torque of 2 Nem EE Note The wall on which the analyzer is mounted should be strong enough to bear the weight of more than 8kg Figure A 6 Wall mounting Option U UM Plastic housing IM12A01A02 12E 7
15. or stainless steel housing Change of figures of wiring covers Change of description of message language due to addition of message languages And other corrections Aug 2010 2nd Edition Followings are mainly revised Addition of grounding terminal position on stainless housing with specific mountings Addition of plate position on stainless housing with specific coatings Addition of explanation of sleeve for grounding wire for plastic housing Correction of torques Addition of Note Warning etc Addition of detail descriptions for wire terminals Addition of drawings of housing with hood Addition of example displays for calculated data and redundant system Addition of explanation of passwords Correction of errors on the User setting tables May 2010 1st Edition Newly published IM 12A01A02 12E 7th Edition Apr 17 2015 00
16. s c ccccciccccccescesieececcsteedsessieeseeceieecuecsieecuecntesauecnivegueasiveniersieesiex 14 REVISION RECOIO BE i IM 12A01A02 12E 7th Edition Apr 17 2015 00 1 1 1 1 2 lt 1 Wiring and Installation gt 1 Wiring and Installation Open the front panel and remove the plastic wiring covers and then install the cable glands refer to the Appendix A1 The wiring covers will be re installed after the wiring is completed Installation site The FLXA21 is weatherproof and can be installed both inside and outside It should however be installed as close as possible to the sensor to avoid long cable runs between the instrument and sensor When a pH sensor is used the cable length including the sensor cable should not exceed 20 meters 65 6 feet 60 meters 197 feet when using BA10 extension box and WF 10 cable For a conductivity sensor the cable run should not exceed 60 meters 197 feet For dissolved oxygen the sensor cable run should not exceed 30 meters 100 feet For SENCOM pH ORP the sensor cable run should not exceed 20 meters 65 6 feet Select an installation site that meets the following conditions e Mechanical vibrations and shocks are negligible e No relay switch and power switch are installed close to the converter e There is space for cable connection beneath the cable glands e Not exposed to direct sunlight or severe weather conditions e Maintenance is possible e No corrosive atmosphere e Ambient Operating
17. th Edition Apr 17 2015 00 15 Unit mm Unit mm 165 173 4M6 205 Pipe 50A 13 060 5 S DN a 4 M6 D SZ D 3 R GP A e E S x 7 meo o em For wall mounting 4 S SE 3 010 holes A M8 U bolt b Tighten the four screws to a torque of 2 Nem Fed a Steet See Note The wall on which the analyzer is mounted should be strong enough to bear the weight of more than 8kg 100 Figure A 12 Wall mounting Option U UM Stainless steel housing Tighten the four screws to a torque of 2 Nem SR E Figure A 7 Pipe mounting Option U UM Plastic housing Pipe 50A e Unit mm 220 E Unit mm P Bla R e e S l S 8 SI 70 100 MB U bolt FB4 os Pipe mounting Horizontal Pipe mounting Vertical Figure A 8 Housing with stainless steel hood Option H6 H7 H8 Plastic housing E four serowa atarie of New 100 EH Figure A 13 Pipe mounting Option U UM Stainless steel housing A2 2 Stainless steel housing The stainless housing with urethane coating U or epoxy coating E has an external plate as shown on figure 2 29 Unit mm D D ol N Figure A 9 Externals of the coated type housing Ei 2 160 Unit mm 70 150 H 80 100 GEN Figure A 14 Housing with stainless steel hood Option H6 H7 H8 Stainless steel housing
18. upply Voltage and Load Resistance for pH ORP analog sensor SC and DO for ISC and pH ORP SENCOM sensor The power supply is connected to the terminals marked with and which corresponds with the polarity of the DC power supply The shield ground is connected to the terminal marked then replace ground wiring cover 1 3 Wiring the sensor The FLXA21 can be used with a wide range of commercially available sensor types both from Yokogawa and other manufacturers For more detailed information refer to the respective instruction manual of the sensor The sensor systems from Yokogawa fall into two categories the ones that use a fixed cable 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 cables are not numbered but instead use a color coding system 1 3 1 pH Measurement Conventional pH sensors are connected to the module as follows FLXA21 11 Temperature 12 Temperature 13 Reference 14 Solution ground 15 Glass measure 16 Shield f 17 Shield g Jumper holder Il TC REF Liquid PH Earth IM12A01A02 12E 7th Edition Apr 17 2015 00 lt 1 Wiring and Installation gt 3 In addition to the wiring of t
19. ws 915 anode galvanic l 13 cathode galvanic 018 anode polarographic o 14 shield 017 cathode polarographic The DO30G sensor comes with integral cable and the wires are labeled with the corresponding terminal numbers IM 12A01A02 12E 7th Edition Apr 17 2015 00 lt 1 Wiring and Installation gt SENCOM pH ORP Measurement FU20F sensors are connected to the module as follows M9 Connector Shield 82 4 Data 83 1 Data 84 2 Supply Gnd 86 5 Supply 87 6 Wiring of YOKOGAWA sensors Board Terminals Input 2 Input 1 Sensor Measurement 1 12 13 14 15 16 47 1813 49 415 Jumper Remark DO30G DO 11 12 13 14 15 16 Fixed Cable FU20 pH pH amp PH20 FU24 ORP rH 11 12 13 14 15 16 17 Yes No Fixed Cable or ORP 11 12 13 14 Yes Yes 13 14 Fixed Cable PH20 FU24 FU20 pH Comp e IPH20 FU24 ORP 11 12 15 14 16 No Yes 13 14 Fixed Cable FU20 VP pH pH amp FU24 VP ORP rH E F B D A Yes No VP6 SC FU20 VP FU24 VP ORP E F B D Yes Yes 13 14 VP6 SC FU20 VP pH Comp FU24 VP ORP E F A D No Yes 13 14 VP6 SC ISC40 ISC 11 12 13 14 15 16 Fixed Cable PR20 PR10 pH 11 12 13 14 15 16 Yes No Fixed Cable SC21 pH Blue Ge Red White No No WU20 Triax SC24V pH E F C H A B D VP8 DC SC25V pH E F B D A Yes No VP6 SC pH Comp Liquid SC29 PTG ORP Red Earth Blue White WU20 Triax SC29 PTP ORP Blue aes Red Whit
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