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IM 12A01A02-72E
3rd Edition : Oct. 01, 2015-00
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Introduction
Thank you for purchasing the FLXA21 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 PROFIBUS PA
communications.
For information about the FLXA21 other than PROFIBUS PA, refer to the User’s Manual (IM
12A01A02-01E).
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Notes 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 find mistakes or omissions in the user’s manuals, please
contact our sales representative or your local distributor.
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Drawing Conventions
Some drawings may be partially emphasized, simplified, or omitted, for the convenience of
description.
Some screen images depicted in the user’s manual may have different 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.
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Model 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 PROFIBUS PA communication and with
measurement of pH and/or ORP. The exact model & style code is as follows;
FLXA21-D-P-D-AA
-P1
-NN-P-N-LA-N-NN (1st input: pH/ORP)
or
FLXA21-D-P-D-AA
-S1
-NN-P-N-LA-N-NN (1st input: pH/ORP (SENCOM sensor))
And, the FLXA21-SC means the FLXA21 with the output of PROFIBUS PA communication and
with measurement of conductivity. The exact model & style code is as follows;
FLXA21-D-P-D-AA
-C1
-NN-P-N-LA-N-NN (1st input: Conductivity (SC))
Media No. IM 12A01A02-72E
3rd Edition : Oct. 2015 (YK)
All Rights Reserved Copyright © 2015, Yokogawa Electric Corporation