YOKOGAWA FLXA21 Startup Manual
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YOKOGAWA FLXA21 Startup Manual

2-wire analyzer
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User's
Manual
This Start-up Manual explains mainly the installation and wiring of the FLXA202/FLXA21.
For detailed information and other information, the User's Manual of the FLXA202/FLXA21
should be referred to.
Model FLXA202 / FLXA21
2-Wire Analyzer
Start-up Manual
TM
TM
IM 12A01A02-12E
IM 12A01A02-12E
9th Edition

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Summary of Contents for YOKOGAWA FLXA21

  • Page 1 Model FLXA202 / FLXA21 2-Wire Analyzer Start-up Manual IM 12A01A02-12E This Start-up Manual explains mainly the installation and wiring of the FLXA202/FLXA21. For detailed information and other information, the User’s Manual of the FLXA202/FLXA21 should be referred to. IM 12A01A02-12E...
  • Page 2 • No part of the user’s manuals may be transferred or reproduced without prior written consent from YOKOGAWA. • YOKOGAWA reserves the right to make improvements in the user’s manuals and product at any time, without notice or obligation. • If you have any questions, or you find mistakes or omissions in the user’s manuals, please contact our sales representative or your local distributor.
  • Page 3 We do not use TM or ® mark to indicate those trademarks or registered trademarks in this user’s manual. CE marking products Authorised Representative in EEA The Authorised Representative for this product in EEA is Yokogawa Europe B.V. (Euroweg 2, 3825 HD Amersfoort, The Netherlands). Identification Tag This manual and the identification tag attached on a packing box are essential parts of the product.

  • Page 4: Table Of Contents

    ISC Measurement ................13 2.3.5 DO Measurement ................13 2.3.6 SENCOM pH/ORP Measurement ............14 2.3.7 Wiring of YOKOGAWA sensors ............15 2.3.8 Wiring of HAMILTON sensors ............. 16 2.3.9 Wiring covers ..................17 Operation ....................18 Change language ....................18 Quick setup ......................
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  • Page 6: Instrument Check

    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. Checking the model and suffix code FLXA202 Make sure the model and suffix code on the nameplate affixed to the left side of the housing.

  • Page 7: Im 12A01A02-12E 9Th Edition

    <1. Instrument Check> FLXA21 Make sure the model and suffix code on the nameplate affixed to the left side or inside of the housing. -D-P-D-CB-P1-NN-A-N-LA-N-NN /UM/SCT S3.02 C2RA12345 2016.01 -D-P-D-AA-P1-NN-A-N-LA-N-NN /UM/SCT/H6 S3.02 C2RA12345 2016.01 Figure 1.2 Example of nameplate (FLXA21) IM 12A01A02-12E 9th Edition : Mar. 23, 2018-00...
  • Page 8 Option code /H6, /H7, /H8 Tag plate Option code /SCT Adapter for conduit work 3 or 4 sets Option code /CB4, /CD4, /CF4 4sets when FLXA21 are used. Instruction Manual (CD-ROM) 1 copy Startup Manual 1 copy This manual Safety Precautions 1 copy The universal mounting kit (/UM) contains the brackets for both /U and /PM options.

  • Page 9: Wiring And Installation

    If the instrument is installed outside and exposed to direct sunlight, a sun shade hood should be used. The FLXA202/FLXA21 can be mounted on a wall, pipe or panel when the mounting kit is ordered. For dimensional information please refer to the Appendix, Mounting methods.

  • Page 10: Cables, Terminals And Glands For Foundation Fieldbus Or Profibus Pa

    Cables, terminals and glands for FOUNDATION Fieldbus or PROFIBUS PA Wire and install the system by referring to chapter 2 in the FLXA21 instruction manual (IM 12A01A02-01E). The FOUNDATION Fieldbus or PROFIBUS PA power supply is 9 to 32 V DC. The wiring is the same.

  • Page 11: Grounding

    6 5 4 3 2 1 0 Figure 2.4 DIP switches 2.2.2 Grounding The way of connecting the grounding is different from FLXA202, FLXA21. • FLXA202 The ground cable is connected to the outer terminal marked • FLXA21 The ground cable is connected to the inner terminal marked IM 12A01A02-12E 9th Edition : Mar. 23, 2018-00...

  • Page 12: Connection Of The Power Supply

    , then replace ground wiring cover. FLXA202 FLXA21 CAUTION The FLXA202/FLXA21 is used with a DC power supply. Do not use an alternating current or 100 volt mains power supply. 2.2.4 Installing the cable glands WARNING For Type n model (-DB, -DE), - When the accompanying cable glands are used, external clamping is required additionally.
  • Page 13 (A hole is drilled, if specified.) For power supply For power supply For grounding cable FLXA202 FLXA21 Figure 2.5 Cable gland diagram CAUTION Be careful not to be injured by the sharp hole edges on the housing. Install the supplied cable gland as shown in Figure 2.6. When using an adapter for conduit work, see Figure 2.7.

  • Page 14: Wiring The Sensor

    The stress on the conduit adapter may damage the housing. Wiring the sensor The FLXA202/FLXA21 can be used with a wide range of commercially available sensor types, both from Yokogawa and other manufacturers. Terminal screw size is M4, and torque of screw up is 1.2N•m Pin terminal, ring terminal and spade terminal can be used.

  • Page 15: Ph Measurement

    400 rpm. Four screws should be tightened to the following torque; 0.8 to 0.9 N•m 2.3.1 pH Measurement Conventional pH sensors are connected to the module as follows: FLXA202/FLXA21 11 Temperature 12 Temperature 13 Reference 14 Solution ground...

  • Page 16: Orp Measurement

    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: FLXA202/FLXA21 11 Temperature 12 Temperature...

  • Page 17: Sc Measurement

    6 mm and 12 mm (0.24” and 0.47”) can be sealed properly with these glands and the standard tule. Remove standard tule Sensor Grommet set Figure 2.8 Grommet set use 2.3.3 SC Measurement Contacting Conductivity, SC, sensors are connected to the module as follows: FLXA202/FLXA21 Temp IM 12A01A02-12E 9th Edition : Mar. 23, 2018-00...

  • Page 18: Isc Measurement

    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. FLXA202/FLXA21 Temp 2.3.4 ISC Measurement...

  • Page 19: Sencom Ph/Orp Measurement

    <2. Wiring and Installation> FLXA202/FLXA21 11 TC + TC - + anode galvanic - cathode galvanic + anode polarographic shield - cathode polarographic The DO30G sensor comes with integral cable and the wires are labeled with the corresponding terminal numbers.

  • Page 20: Wiring Of Yokogawa Sensors

    <2. Wiring and Installation> 2.3.7 Wiring of YOKOGAWA sensors FLXA202/FLXA21 Terminals Short *2 FLXA202 18/13 19/15 Sensor Measurement Remark /FLXA21 Sensor cable marking (or color) Jumper *1 Terminals DO30G Fixed Cable FU20 pH, pH & Fixed Cable /PH20/FU24 ORP, rH...

  • Page 21: Wiring Of Hamilton Sensors

    <2. Wiring and Installation> 2.3.8 Wiring of HAMILTON sensors FLXA202/FLXA21 Terminals Short *2 FLXA202 18/13 19/15 Sensor Measurement Remark /FLXA21 Sensor cable marking (or color) Jumper *1 Terminals WU20D CHEMTRODE Blue (White) 13/14 Cable CHEMTRODE- 13/14 CHEMTRODE- 13/14 VP6-SC WU20D...

  • Page 22: Wiring Covers

    Wiring cover 2 Wiring cover 1 (when using the second module) FLXA21 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).

  • Page 23: Operation

    Commissioning in the User’s Manual (for example, chapter 4 for pH/ORP). Each time the FLXA202/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 .

  • Page 24: Basic Operation (When Two Sensors Are Connected)

    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. Home Display Main Display Tag:FLXA21–PH Tag:FLXA21–PH 10.38 10.38 25.0 °C 19 mV Tag:FLXA21–PH...

  • Page 25: Commissioning

    <4. Commissioning> Commissioning NOTES for Quick Setup: a. pH measurement module Under “measurement “a selection is made for pH, ORP or pH&ORP. The selected measurement must be in accordance with the sensor wiring. When rH measurement is requested pH&ORP must be chosen on this level. The rH must then be selected in the commissioning menu.

  • Page 26: Maintenance

    Maintenance Periodic maintenance The FLXA202/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.
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  • Page 28: Appendix

    Appendix n FLXA202 Dimensions and Mounting Unit: mm 4-M6 depth 7 For sensor 1 cable For sensor 2 cable For power supply FB4_01.ai Conduit Adapter (Option code: /CB4, /CD4, /CF4) Unit: mm(inch) Packing Approx. 55(2.2") (1.93") G1/2 screw (/CB4), 1/2 NPT screw (/CD4) M20x1.5 screw (/CF4) Adapter F0204.ai...
  • Page 29 (Note) The universal mounting kit (/UM) contains the pipe and wall mounting hardware (/U) and the panel mounting hardware (/PM). Panel mounting hardware (Option code: /PM, /UM) Unit: mm 2-M5 length 35 4-M6 * Spacing panel cutout *: Tighten the four screws to a torque of 2 N•m. FB4-202_02.ai Wall mounting hardware (Option code: /U, /UM) Unit: mm...
  • Page 30 Pipe mounting hardware (Option code: /U, /UM) Unit: mm (209) Pipe 50A (ø60.5) 4-M6 * M8 U-bolt Pipe mounting (Horizontal) Pipe mounting (Vertical) *: Tighten the four screws to a torque of 2 N•m. FB4-202_04.ai Stainless steel hood (Option code: /H6, /H7, /H8) Unit: mm (70) (100)
  • Page 31 FLXA21 Dimensions and Mounting Unit: mm 22.5 For sensor 1 cable 4-M6 depth 5 (For sensor 2 cable) For power supply 44.9 20.2 For grounding cable FB4_01.ai Conduit Adapter (Option code: /CB4, /CD4, /CF4) Unit: mm(inch) Packing Approx. 55(2.2") (1.93")
  • Page 32 (Note) The universal mounting kit (/UM) contains the pipe and wall mounting hardware (/U) and the panel mounting hardware (/PM). Panel mounting hardware (Option code: /PM, /UM) Unit: mm 2-M5 length 35 4-M6 * Spacing panel cutout *: Tighten the four screws to a torque of 2 N•m. FB4_03.ai Wall mounting hardware (Option code: /U, /UM) Unit: mm...
  • Page 33 Stainless steel hood (Option code: /H6, /H7, /H8) Unit: mm (70) (100) FB4_05.ai IM 12A01A02-12E 9th Edition : Mar. 23, 2018-00...

  • Page 34: Revision Record

    Revision Record Manual Title : Model FLXA202 / FLXA21 2-Wire Analyzer Start-up Manual Manual No. : IM 12A01A02-12E Mar. 2018/9th Edition Change the location of the nameplate, addition of Type n, deletion of stainless steel housing, etc. Oct. 2015/8th Edition Addition of FLXA202 Apr.
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