YOKOGAWA FLXA202 User manual

User’s
Manual
TM
TM
FLXA21
2-Wire Analyzer
FOUNDATION Fieldbus
Communication
IM 12A01A02-71E
IM 12A01A02-71E
3rd Edition

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IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
uIntroduction
Thank you for purchasing the FLXATM21 2-Wire Analyzer.
Please read the following respective documents before installing and using the FLXA21.
This manual describes only those topics that are required for operation of the FOUNDATION
Fieldbus communications.
For information about the FLXA21 other than FOUNDATION Fieldbus, refer to the User’s Manual
(IM 12A01A02-01E).
nNotes on Handling User’s Manuals
• Please hand over the user’s manuals to your end users so that they can keep the user’s
manuals on hand for convenient reference.
• Please read the information thoroughly before using the product.
• The purpose of these user’s manuals is not to warrant that the product is well suited to any
particular purpose but rather to describe the functional details of the product.
• No part of the user’s manuals may be transferred or reproduced without prior written
consent from YOKOGAWA.
• YOKOGAWA reserves the right to make improvements in the user’s manuals and product at
any time, without notice or obligation.
• Ifyouhaveanyquestions,oryoundmistakesoromissionsintheuser’smanuals,please
contact our sales representative or your local distributor.
nDrawing Conventions
Somedrawingsmaybepartiallyemphasized,simplied,oromitted,fortheconvenienceof
description.
Somescreenimagesdepictedintheuser’smanualmayhavedi󰀨erentdisplaypositionsor
character types (e.g., the upper / lower case). Also note that some of the images contained in this
user’s manual are display examples.
Media No. IM 12A01A02-71E 3rd Edition : Mar. 2018 (YK)
All Rights Reserved Copyright © 2015, Yokogawa Electric Corporation

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IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
nModel Name used in this Manual
The model names, FLXA21-PH and FLXA21-SC, are used in this manual.
The FLXA21-PH means the FLXA21 with the output of FOUNDATION Fieldbus communication
and with measurement of pH and/or ORP. The exact model & style code is as follows;
 FLXA21-D-P-D-□□-P1-NN-F-N-LA-N-NN (1st input: pH/ORP)
or
 FLXA21-D-P-D-□□-S1-NN-F-N-LA-N-NN (1st input: pH/ORP (SENCOMTM sensor))
And, the FLXA21-SC means the FLXA21 with the output of FOUNDATION Fieldbus
communication and with measurement of conductivity. The exact model & style code is as
follows;
 FLXA21-D-P-D-□□-C1-NN-F-N-LA-N-NN (1st input: Conductivity (SC))
l Model&Su󰀩xCodes
Model Su󰀩xcode Option code Description
FLXA21 ······················································· ·················· 2-Wire Analyzer
Power supply -D ·················· Always -D
Housing -P ·················· Plastic
Display -D ·················· Anti-glare LCD
Type -AB
-AD
-AG
-CB
-CD
-CH
-EG
-DD
··················
··················
··················
··················
··················
··················
··················
··················
General purpose for CE, RCM
General purpose for CSA
General purpose for KC
IS for ATEX, IECEx (Note 5) (Note 7)
IS for FM, CSA (Note 5)
IS for NEPSI (Note 5)
IS for KOSHA (Note 5)
NI for FM, CSA (Note 6)
1st input -P1
-C1
-S1
··················
··················
··················
pH/ORP (Note 3)
Conductivity (SC)
pH/ORP (SENCOM sensor)
2nd input -NN ·················· Without input
Output (Note 1) -F ·················· FOUNDATION Fieldbus
—-N ·················· Always -N
Language set (Note 2) -LA ·················· English and 11 languages
Country -N ·················· Global except Japan
—-NN ·················· Always -NN
Option Mounting hardware
Hood
Tag plate
Conduit adapter
/UM
/U
/PM
/H6
/H7
/H8
/SCT
/CB4
/CD4
/CF4
Universal mounting kit (Note 4)
Pipe and wall mounting hardware
Panel mounting hardware
Hood, stainless steel
Hood, stainless steel + urethane coating
Hood, stainless steel + epoxy coating
Stainless steel tag plate
Conduit adapter (G1/2 x 4 pcs)
Conduit adapter (1/2NPT x 4 pcs)
Conduit adapter (M20 x 1.5 x 4 pcs)
Notes:
1:TheFLXA21hasanotheroutputtypeof“4-20mA+HART”(su󰀩xcode:-A).RefertoIM12A01A02-01E.
2: These languages are message languages on the analyzer’s display.
One analyzer has English and 11 languages.
All languages are as follows; English, Chinese, Czech, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian
and Spanish.
3: This input is to be come from an analog pH/ORP sensor.
4: The universal mounting kit contains the pipe and wall mounting hardware (/U) and the panel mounting hardware (/PM).
5: Type “-CB”, “-CD”, “-CH”, “-EG” are intrinsic safety (IS).
6: Type “-DD” is nonincendive (NI).
7: Product registration is done by Yokogawa Taiwan Corporation as an importer in Taiwan.

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uSafety Precautions
n Safety,Protection,andModicationoftheProduct
• In order to protect the system controlled by the product and the product itself and ensure
safe operation, observe the safety precautions described in this user’s manual. We assume
no liability for safety if users fail to observe these instructions when operating the product.
• Ifthisinstrumentisusedinamannernotspeciedinthisuser’smanual,theprotection
provided by this instrument may be impaired.
• If any protection or safety circuit is required for the system controlled by the product or for
the product itself, prepare it separately.
• Be sure to use the spare parts approved by Yokogawa Electric Corporation (hereafter
simply referred to as YOKOGAWA) when replacing parts or consumables.
• Modicationoftheproductisstrictlyprohibited.
• The following words are used this manual.
CAUTION
This symbol gives information essential for understanding the operations and functions.
NOTE
This symbol indicates information that complements the present topic.
nWarning and Disclaimer
The product is provided on an “as is” basis. YOKOGAWA shall have neither liability nor
responsibility to any person or entity with respect to any direct or indirect loss or damage arising
from using the product or any defect of the product that YOKOGAWA can not predict in advance.

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IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
nFLXA21
• The FLXA21 should only be used with equipment that meets the relevant IEC, American,
Canadian, and Japanese standards. Yokogawa accepts no responsibility for the misuse of
this unit.
• Don’t install “general purpose type” instruments in the hazardous area.
• 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.
CAUTION
Electrostatic discharge
The FLXA21 contains devices that can be damaged by electrostatic discharge.
When servicing this equipment, please observe proper procedures to prevent such damage.
Replacement components should be shipped in conductive packaging. Repair work should
be done at grounded workstations using grounded soldering irons and wrist straps to avoid
electrostatic discharge.
CAUTION
• Do not use an abrasive or organic solvent in cleaning the instrument.
• Substitution of components may impair suitability for Division 2.
Do not remove or replace while circuit is live unless area is known to be non-hazardous.
Explosion Hazard – Do not disconnect equipment unless area is known to be
nonhazardous.
Do not reset circuit breaker unless power has been removed from the equipment or the area
is known to be non-hazardous.
CAUTION
This instrument is a EN61326-1 Class A product, and it is designed for use in the industrial
environment. Please use this instrument in the industrial environment only.
CAUTION
When you open the front panel, make sure the screws are completely out of the screw holes, and
then open the front panel slowly in order not to damage the threaded parts on the housing. If the
threaded parts are damaged and the screws cannot be tightened, the waterproof performance
will deteriorate.
CAUTION
Be careful to touch the concentrated sulfuric acid.

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IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
nMark position of intrinsic safety
The mark position of intrinsic safety is shown as follows
FLXA21-D-P-D-CB-□1-NN-F-N-LA-N-NN(FOUNDATIONFieldbus)
FLXA21-D-P-D-CD-□1-NN-F-N-LA-N-NN(FOUNDATIONFieldbus)
FLXA21-D-P-D-DD-□1-NN-F-N-LA-N-NN(FOUNDATIONFieldbus)
FLXA21-D-P-D-CH-□1-NN-F-N-LA-N-NN(FOUNDATIONFieldbus)
FLXA21-D-P-D-EG-□1-NN-F-N-LA-N-NN(FOUNDATIONFieldbus)
*2
*1
*4
*3
*7
*6
*5
*8
Type: -CB
Type: -CD Type: -DD Type: -CH
*1: This marking conforms to Intrinsic safety of IECEx.
*2: This marking conforms to Intrinsic safety of ATEX.
*3: This marking conforms to Intrinsic safety of CSA.
*4: This marking conforms to Intrinsic safety of FM.
*5: This marking conforms to nonincendive of CSA.
*6: This marking conforms to nonincendive of FM.
*7: This marking conforms to Intrinsic safety of NEPSI.
*8: This marking conforms to Intrinsic safety of KOSHA.
Type:-EG
-F (FOUNDATION Fieldbus)-F (FOUNDATION Fieldbus)

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nProduct Disposal:
The instrument should be disposed of in accordance with local and national legislation/
regulations.
nWarranty 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 organisations 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e󰀨ects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 organisation 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 failure of the device.
• A statement whether warranty or nonwarranty 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uidsmustbedecontaminated/
disinfectedbeforeshipment.Goodsshouldcarryacerticatetothise󰀨ect,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.

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nCopyright and Trademark Notices
The copyrights of online manual contained in the CD-ROM are reserved.
TheonlinemanualisprotectedbythePDFsecurityfrommodication,however,itcanbeoutput
via a printer. Printing out the online manual is only allowed for the purpose of using the product.
When using the printed information of the online manual, check if the version is the most recent
one by referring to the CD-ROM’s version.
No part of the online manual may be transferred, sold, distributed (including delivery via a
commercial PC network or the like), or registered or recorded on video tapes.
FLEXA, FLXA and SENCOM are trademarks or registered trademarks of Yokogawa Electric
Corporation.
Adobe, Acrobat and Acrobat Reader are either registered trademarks or trademarks of Adobe
Systems Incorporated in the United States and/or other countries.
All other company and product names mentioned in this user’s manual are trademarks or
registered trademarks of their respective companies.
We do not use TM or ® mark to indicate those trademarks or registered trademarks in this user’s
manual.
lFLXA21’s fonts
(c) Copyright 2000-2001 /efont/ The Electronic Font Open Laboratory. All rights reserved.
Redistributionanduseinsourceandbinaryforms,withorwithoutmodication,arepermitted
provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions
and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of
conditions and the following disclaimer in the documentation and/or other materials provided
with the distribution.
3. Neither the name of the team nor the names of its contributors may be used to endorse or
promoteproductsderivedfromthisfontwithoutspecicpriorwrittenpermission.
THIS FONT IS PROVIDED BY THE TEAM AND CONTRIBUTORS “AS IS” AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE TEAM OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
WAY OUT OF THE USE OF THIS FONT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.

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uCE marking products
nAuthorised Representative in EEA
The Authorised Representative for this product in EEA is Yokogawa Europe B.V. (Euroweg 2,
3825 HD Amersfoort, The Netherlands).
n IdenticationTag
Thismanualandtheidenticationtagattachedonapackingboxareessentialpartsofthe
product.
Keep them together in a safe place for future reference.
nUsers
This product is designed to be used by a person with specialized knowledge.
nHow to dispose the batteries:
This is an explanation about the EU Battery Directive. This directive is only valid in the EU.
Batteries are included in this product. Batteries incorporated into this product cannot be removed
by yourself. Dispose them together with this product.
WhenyoudisposethisproductintheEU,contactyourlocalYokogawaEuropeB.V.o󰀩ce.Donot
dispose them as domestic household waste.
Battery type: Manganese dioxide lithium battery
Notice:
The symbol (see above) means they shall be sorted out and collected as ordained in the EU
Battery Directive.
nInformation of the WEEE Directive
Thisproductispurposelydesignedtobeusedinalargescalexedinstallationsonlyand,
therefore, is out of scope of the WEEE Directive. The WEEE Directive does not apply. This
product should be disposed in accordance with local and national legislation/regulations.
The WEEE Directive is only valid in the EU.

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IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
FLXA21
2-Wire Analyzer
FOUNDATION Fieldbus Communication
CONTENTS
IM 12A01A02-71E 3rd Edition
uIntroduction....................................................................................................i
uSafety Precautions ......................................................................................iii
uCE marking products................................................................................viii
1. About FOUNDATION Fieldbus ................................................................ 1-1
1.1 Internal Structure of FLXA21 ........................................................................... 1-1
1.2 Logical Structure of Each BLOCK .................................................................. 1-2
1.3 WiringSystemConguration .......................................................................... 1-2
1.4 Regulatory Compliance.................................................................................... 1-2
2. Preparation................................................................................................ 2-1
2.1 Cables, terminals and glands for FOUNDATION Fieldbus........................... 2-1
2.2 Shielding and grounding ................................................................................. 2-3
2.3 How to download DD for CFF .......................................................................... 2-3
3. Getting started .......................................................................................... 3-1
3.1 Connection of Devices ..................................................................................... 3-1
3.2 Host Setting ....................................................................................................... 3-2
3.3 Bus Power ON ................................................................................................... 3-3
3.4 Integration of DD ............................................................................................... 3-3
3.5 Set the parameters using DTM ........................................................................ 3-3
3.6 Reading the Parameters................................................................................... 3-4
3.7 Continuous Record of Values.......................................................................... 3-4
3.8 Generation of Alarm.......................................................................................... 3-4
3.9
PRIMARY/SECONDARY/TERTIARY/QUATERNARY_VALUE Value Assignment .... 3-4
4. Conguration............................................................................................ 4-1
4.1 Network Design................................................................................................. 4-1
4.2 NetworkDenition ............................................................................................ 4-2
4.3 DenitionofCombiningFunctionBlocks...................................................... 4-3
4.4 Setting of Tags and Addresses ....................................................................... 4-4
4.5 Communication Setting ................................................................................... 4-5
4.5.1 VCR Setting ....................................................................................... 4-5
4.5.2 Function Block Execution Control...................................................... 4-8
4.6 Block Setting ..................................................................................................... 4-8
4.6.1 Link Object ......................................................................................... 4-8
4.6.2 Trend Object ...................................................................................... 4-8