Fluid Components International MT91 Cover Page

INSTALLATION, OPERATION AND

MAINTENANCE MANUAL

Model MT91

Multipoint Flowmeter

Software Version 1.1xx

Doc. No. 003185 Rev. B

Notice of Proprietary Rights

This document contains confidential technical data, including trade
secrets and proprietary information which are the property of Fluid
Components Intl (FCI).

Disclosure of this data to you is expressely conditioned upon your assent
that its use is limited to use within your company only (and does not
include manufacture or processing uses). Any other use is strictly
prohibited without the prior written consent of FCI.

© Copyright 1997 Fluid Components Intl

a limited liability company

All Rights Reserved

10/19/93

FLUID COMPONENTS INTL

MT91B.PM5

Model MT91 Multipoint Flowmeter ii Doc. No. 003185 Rev. B

CUSTOMER COMMITMENT PLEDGE

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• at a competitive value

• on time

• with unquestioned support

in full compliance with our COMPLETE CUSTOMER COMMITMENT.

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Management, the Technical Publications Department expresses its pledge and mission to you, our customer:

“To support the creation and publication of world-class technical material which is technically accurate and
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QUALITY IMPROVEMENT

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We appreciate your comments and suggestions which support our effort to constantly improve our product and
services. Please address comments and suggestions to your nearest field representative or in-house technical support
representative. Thank you.

FCI Technical Publications Department

Doc. No. 003185 Rev. B iii Model MT91 Multipoint Flowmeter

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CUSTOMER SERVICE/TECHNICAL SUPPORT

FCI provides full in-house technical support for our products 8 a.m. to 5 p.m. PST, Monday through Friday (except­ing holidays and an annual plant closure between Christmas and New Year's day). Also, additional technical
representation is provided by FCI field representatives. Before contacting one of our field or in-house representa­tives, please ensure that you have performed the troubleshooting techniques outlined in this document.

By MailBy Mail

By Mail

By MailBy Mail

Fluid Components Intl
1755 La Costa Meadows Dr.
San Marcos, CA 92069
Attn: Customer Service Department

By PhoneBy Phone

By Phone

By PhoneBy Phone

Contact the FCI regional representative in your area. If your are unable to contact the field representative or
are unable to satisfactorily resolve the situation, contact the FCI Customer Service Department at
1 [phone].

By FaxBy Fax

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To describe your problems in a more graphical or pictorial manner, send your fax including your phone or
fax number to your regional representative. Again FCI is available through facsimile if you have exhaused
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International supportInternational support

International support

International supportInternational support

For product information or product support outside the contiguous United States, Alaska, or Hawaii, contact
your country’s FCI International Representative or the one nearest to you. See list on following pages.

Appendix C contains a detailed explanation of the FCI customer service policy on returns, adjustments, in-field or
factory repair, in- or out-of-warranty.

Model MT91 Multipoint Flowmeter iv Doc. No. 003185 Rev. B

Reserved for Domestic Rep Map

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Doc. No. 003185 Rev. B v Model MT91 Multipoint Flowmeter

FLUID COMPONENTS INTL

Reserved for International Rep Map

Model MT91 Multipoint Flowmeter vi Doc. No. 003185 Rev. B

FLUID COMPONENTS INTL

REVISIONS

REV. DESCRIPTION DATE AUTHOR

B

Incorporated Errata 17EN000020 into the manual. Changed Appendix C.
See change bars for all other changes.

03/17/97

R. Sanders

Doc. No. 003185 Rev. B vii Model MT91 Multipoint Flowmeter

FLUID COMPONENTS INTL

Model MT91 Multipoint Flowmeter viii Doc. No. 003185 Rev. B

Contents

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Chapter 1 - General Information

Description . .. ... ... ... .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..1 - 1

Flow Element ......................... .................... .................... .................... .................... .....1 - 1

Flow Transmitter .. ....... . .. .. ..... . .. .. ...... . .. .. ..... . .. .. ...... . .. .. ..... . .. .. ...... . .. .. ..... . .. .. ...... . .. .. ..... .1 - 1

Theory of Operation .... .. .. .. ................ .. .. .. ................. .. .. .. ................ .. .. .. ................ .. .. .. .......1 - 2

Specifications . . . .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .1 - 2

Chapter 2 - Installation

Receiving/Inspection ........ .. .. ................. .. .. ................. .. .. ................ .. .. ................. .. .. .........2 - 1

Packing/Shipping/Returns .............................................................................................2 - 1

Factory Calibration Note . . .. .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. .. . .. . .. .. . ... .. . .. .. . .. . .. .. . .. .. . .. . .. .. . ... .. . .. .. . ... .. . .. .2 - 1

Pre-Installation Procedure . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

Verify Serial Numbers . .. ................ .. .. .. ............... .. .. .. ............... .. .. .. ............... .. .. .. .......2 - 1

Prepare or Verify Flow Element Location . .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. .. .. .. ... .. .. .. ..2 - 1

Verify Dimensions .. .. .. .. ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..2 - 2

Verify Flow Direction for Flow Element Orientation and Placement . .. ...... .. .. .. .2 - 2

Install Flow Element .. .. . . .. .. . . . .. . . .. .. . . .. .. .. . . .. .. . . . .. . . .. .. . . .. .. .. . . .. .. . . . .. . . .. .. . . .. .. . . . .. . . .. .. . . .. .. .. . . .. .. . . . .2 - 2

Threaded Mounting ...................................................................................................2 - 2

Flanged Mounting ......................................................................................................2 - 3

Install Flow Transmitter . . . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . .2 - 3

Minimum Wire Size ...................................................................................................2 - 3

Remote Hardware ......................................................................................................2 - 3

Power Connection Information ... .. ..... ..... .. ..... .. ..... .. .... .. ..... .. ..... ..... .. ..... .. ..... ...... ..... .2 - 4

NEMA 4 Remote Enclosure ................................................................................2 - 4

Rackmount Remote Enclosure ...........................................................................2 - 4

Sensing Point Connections . .. ...... .. ....... .. ...... .. ....... .. ...... .. ....... .. ...... .. ...... .. .. . .. . .. ...... .. ..2 - 4

NEMA 4 Remote Enclosure ................................................................................2 - 4

Rackmount Remote Enclosure ...........................................................................2 - 4

Customer Connections .. .... .... ... .... .... .... ... .... .... ... .... .... ... .... .... ... .... .... .... ... .... .... ... .... .... ... ....2 - 7

Analog Output Board - Assy #015231 ....... ........ ........ ....... ........ ....... ........ ....... ........ .2 - 7

Jumper J2 ............ .. .. .. .. .. .. .. .. .. .. .. .. ............... .. .. .. .. .. .. .. .. .. .. .. ............... .. .. .. .. .. .. .. .. .. .. .. .2 - 7

Jumper J3 ............ .. .. .. .. .. .. .. .. .. .. .. .. ............... .. .. .. .. .. .. .. .. .. .. .. ............... .. .. .. .. .. .. .. .. .. .. .. .2 - 7

Connector J4 .... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. .. . .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ....2 - 7

Relay Output Board - Assy #015235 . .. .................... .. .. .. .. ..................... .. .. .. .. .. ..........2 - 8

Connector J1 .... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. .. . .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ....2 - 8

Connector J2 .... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. .. . .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ....2 - 8

Connector J3 .... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. .. . .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ....2 - 8

Serial Communication Ports - Backplane Board Assy #015206 .... .. ...... ........ .......2 - 9

Connector J17 - EIA-232 . .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. ..2 - 9

Connector J23 - 4-20mA . .. ................. .. .. .. ............... .. .. .. ............... .. .. .. ............... .. .2 - 9

Connector J24 - EIA-422/EIA-485 . .................. .. .................. .. ................. .. .........2 - 9

Installation Quick Check List . . . .. . .. . . .. . . . . . . . .. . . . . . . . .. . . . . . . . .. . . .. . . . . . . . .. . . . . . . . .. . . . . . . . .. . .. . . .. . . . . . . . .. . . . . .2 - 10

Chapter 3 - Operation

Introduction . . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .3 - 1

Start Up . .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . ... .. .. . .. .. . .. .. . .. .. . ... .. .. . .. .. . .. .. . .. .. . .. .. . ... .. .. . .. .. . .. ..3 - 1

Using the MT91 Software with Display . .. .......... .. .. ......... .. .. ......... .. .. ......... .. .. ......... .. .. ....3 - 1

Display . .. .. .. .. .. .. ............................................................................................................3 - 1

Menu Window ............................................................................................................3 - 1

Other Window Types ................................................................................................3 - 2

Menu Control ..............................................................................................................3 - 2

Menu Organization ....................................................................................................3 - 2

Quick Custom Setup .........................................................................................................3 - 4

In-Depth Custom Setup Procedure ... .... ..........................................................................3 - 6

Password Protection . .. ...... . .. .. .... . .. .. .... . .. .. ..... . .. .. .... . .. .. ..... . .. .. .... . .. .. ..... . .. .. .... . .. .. ..... . .. .3 - 6

Factory Level . . .. . .. .. . .. .. . .. .. . .. .. . .. .. . . .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . . .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . . .. . .. .3 - 6

User Level . .. ...... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. .... .. ...... .. .. ... .. .. ...3 - 6

Doc. No. 003185 Rev. B ix Model MT91 Multipoint Flowmeter

FLUID COMPONENTS INTL

Chapter 4 - Maintenance

Chapter 5 - Troubleshooting

Selecting Units of Measure . . .. . .. .. . .. .. . ... .. . .. .. . .. .. . .. .. . .. .. . .. .. . ... .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. . ..3 - 7

Selecting the Normal Display Screen . ... .. .. .. ... .. ... .. ... .. .. .. ... .. ... .. .. .. ... .. ... .. ... .. .. .. ... .. ...3 - 8

Assigning Sensing Points to Outputs . . .. . .. .. . .. . . .. . .. . . .. . .. . . .. . .. . .. .. . .. .. . .. . . .. . .. . . .. . .. . . .. . .. . . .3 - 8

Setting Analog Outputs .................. ........ ........ ........ ........ ....... ........ ........ ........ ........ ....3 - 9

Setting Discrete Outputs . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . .. .. .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .3 - 10

Daily Calibration Testing . . . . . .. . . . . . .. . . . . . .. . .. . . . . . .. . .. . . . . . .. . . . . . . .. . . . . . .. . . . . . .. . .. . . . . . .. . . . . . .. . .. . . . . . ..3 - 12

Advanced Features ............................................................................................................3 - 13

Flow Rate Correction Equation . .. .. ......... .. .. ............ .. .. ........... .. .. ........... .. .. ............ .. ..3 - 13

Offset Adjustment of Sensing Points . . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. . . .. . .. .. . .. .. . ..3 - 14

Applying the Filter . . . . . . . .. . . . . . . . .. . . . . . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . .. . . . . . . .. . ..3 - 15

Serial Communications . .. .. .... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. ..... .. .....3 - 16

Maintenance .......................................................................................................................4 - 1

Calibration . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .4 - 1

Electrical Connections . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . .4 - 1

Transmitter Enclosure . . .. . .. . . .. . . .. . .. . . .. . .. . . .. . .. .. . .. . . .. . .. .. . .. . . .. . .. .. . .. . . .. . .. . . .. . . .. . .. . . .. . .. . . .. . . .. .4 - 1

Electrical Wiring . . . . . . . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . . . .. . . . . . . . .. . . . . . . . . .. . . . . . . . .. . . . . . . . . .. . . . . . . . .. . . . . . . . . .. . . . . . . . .4 - 1

Flow Element Connections . ..... ..... .... ..... ..... ..... ..... .... ..... ..... ..... ..... .... ..... ..... ..... .... .....4 - 1

Flow Element Assembly ............................................................................................4 - 1

Quick Check .......................................................................................................................5 - 1

Non-maintencance Observations . .... .... .... .. ... .. ... .. .... .... .... .... .... .. .... .... .... .... ..... .... .... .... ....5 - 1

Check Serial Numbers .... ........ ........ ........ ............ ........ ........ ............ ........ ........ ...........5 - 1

Check Input Power .....................................................................................................5 - 1

Check the Unit Installation . . . . . . . . .. . . . .. . . . .. . . . . . . . . . . . .. . . . .. . . . .. . . . . . . . . . . . .. . . . .. . . . .. . . . . . . . . . . . .. . . . .. . . .5 - 1

Check for Moisture . .. .. .. ...................... .. .. .. ............................. .. .. .. .............................. .5 - 1

Check Application Design Requirements .. ..... ...... ..... .. ..... ..... .. ..... ..... .. ..... ..... .. ..... ..5 - 2

Verify Standard vs. Actual Process Conditions . .. .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . ... .. . .. . .. . .. . ..5 - 2

Troubleshooting Process . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . .5 - 2

Verify Units . . . . .. . . . . . . .. . .. . .. . .. . .. . .. . . . . . . . .. . . . . . . .. . .. . .. . .. . .. . .. . .. . . . . . . . .. . . . . . . .. . .. . .. . .. . .. . .. . .. . .. . . . . . . . .. . .5 - 2

Verify Channel Assignment .... ..... ..... ..... ..... ..... ..... ...... ..... ..... ..... ..... ..... ..... ...... ..... .....5 - 2

Verify Limits . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . . .5 - 3

Check for Suspect Sensing Points and Heaters ... .. .... .. .... .. ..... .. .... .. .... .. .... .. .... .. ..... .5 - 3

Verify the Calibration Parameters . . . .. . . .. . . .. . . .. . . .. . .. .. . . .. . . .. . . .. . . .. . . .. . .. .. .. . . .. . .. .. . . .. . . .. . . .. .5 - 3

Check the Resistance of the Sensing Points . . . .. . . . .. . . . .. .. .. . . . .. .. .. .. .. . . . .. .. .. .. .. .. . . . .. .. .. .. ..5 - 4

Check the Analog Outputs ... ..... .... ..... ..... .... ..... .... ..... ..... .... ..... .... ..... ..... .... ..... .... ..... ..5 - 5

Check the Relays . .. ...... .. .. .... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. ..5 - 5

Run the Calibration Test . . . .. .. .. .. . . . .. .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. .. . . . ..5 - 5

Spares . .. .. ...... .. .. ....... .. .. ....... .. .. ....... .. .. ....... .. .. ....... .. .. ....... .. .. ....... .. .. ....... .. .. ...... .. .. ....... .. .. ......5 - 6

Defective Parts . . . . . . . . . . .. . . .. . . . .. . . . . . . . . . . .. . . . .. . . . . . . . . . . .. . . .. . . . .. . . . . . . . . . . .. . . . .. . . . . . . . . . . .. . . . .. . . . . . . . . . . .. . . .. . . . .. .5 - 6

Customer Service .. .. .. ....... .. .. .. ....... .. .. ........ .. .. ....... .. .. .. ....... .. .. .. ....... .. .. ........ .. .. ....... .. .. .. .......5 - 6

Appendix A - Drawings

Outline Drawings . .. ..... ..... ..... .. .... ..... .. .... .. .... .. .... .. .... .. .... .. .... ..... .. .... .. .... .. .... .. .... .. .... ..... .. ...A - 1

Appendix B - Glossary

Abbreviations and Explanation of Terms ............ ...... ..... ...... ...... ..... ...... ...... ..... ...... ...... .B - 1

Appendix C - Customer Service

Policy and Prodedures . ...... .... ..... .... .... ..... .... ..... .... .... ..... .... .... ..... .... .... ..... .... .... ..... .... ..... ...C - 1

Appendix D - MT91 Delta R Parameters

Explanation of and Fill-Out Sheets for Delta R Parameters . .. . . .. . .. .. . .. .. . .. .. . . .. . .. .. . .. .. . .. . D - 1

Appendix E - CE Conformance

CE Mark Conformance Informance Information ..........................................................E - 1

Model MT91 Multipoint Flowmeter x Doc. No. 003185 Rev. B

Figures

FLUID COMPONENTS INTL

1 - 1 Flow Element Cutaway View of One Sensing Point . ...... .... ..... ......... ..... .... ..... ..... .... ..... .... ...1 - 1

1 -2 Functional Block Diagram ..... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ......... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ......... .. .. .. .. .1 - 1

2 - 1 Flow Element Showing Flat Area ... ...... ...... ....... ...... ...... ....... ...... ...... ....... ...... ....... ...... ...... .......2 - 2

2-2 MT91 Wiring Diagram ..............................................................................................................2 - 5

2 - 3 Flow Transmitter Outline for NEMA 4 and Rackmount Remote Enlosures .....................2 - 6

2 -4 Wiring Diagram for Serial Connector EIA-232 . .. .. ..................... .. .. .. .. ................. .. .. .. .. ..........2 - 9

2 -5 Wiring Diagram for Serial Connectors EIA-422 & EIA-485 . .. .. .. .................... .. .. .. .. .. .. .. .. .....2 - 10

3-1 Menu Window ...........................................................................................................................3 - 1

3 -2 Keypad Layout ...........................................................................................................................3 - 2

3 -3 Menu Flowchart .........................................................................................................................3 - 3

3 -4 Normal Display Screen 1 and Screen 2 . .. ......... .. .. .. ............ .. .. .. ............ .. .. .. ............ .. .. .. ...........3 - 8

3 - 5 Assign Heads Display .. ...... ...... ..... ...... ..... ...... ...... ..... ...... ..... ...... ...... ..... ...... ..... ...... ...... ..... ...... ..3 - 9

3 - 6 Analog Output ...........................................................................................................................3 - 9

3 -7 Relay Switch Points Schemes . .. .. .................. ................. .................. .................. .................. .....3 - 11

3-8 Calibration Test Display Screens . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . . .. . . .. .. .. .. .. . . . .. . . . .. . . . .. . . . .. . . . .. . . .. .. .. .. .. . . . .. . . . .3 - 12

3 -9 Desired Flow Rate vs. Measured Flow Rate . .. .. .. .. ............ .. .. .. .. .. .. .. ............ .. .. .. .. .. .. .. .............3 - 14

3-10 Delta-R vs. Flow Rate . . . .. . . .. . . .. . . .. . . .. . . .. . . .. .. . . .. . . .. . . .. . . .. . . .. . . .. .. . . .. . . .. . . .. . . .. . . .. . . .. .. . . .. . . .. . . .. . . .. . . .. .. . . .. . . .3 - 15

3-11 Effects of Filter on Flow Signal vs. Time ... . .. . . .. . .. . .. . .. . .. . .. . . .. . .. . .. . .. . .. . .. . . .. . .. . .. . .. . .. . .. . . .. . .. . .. . .. . .. .3 - 15

5 -1 J1 Connector Plug on the Backplane Board ....... .. .. .. ........ .. .. .. ......... .. .. .. ........ .. .. .. ......... .. .. .. ....5 - 4

5 - 2 TB1-HD1 Terminal Connector .................................................................................................5 - 5

A-1 Flow Element Installation Drawing ...... .. .. .......... .. .. .......... .. .. .......... .. .. .......... .. .. .......... .. .. ........A - 1

A-2 Local Enclosures . . .. .. . .. .. . .. .. . .. .. . .. .. . .. . . .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .A - 2

A-3 NEMA 4 Remote Enclosure......................................................................................................A - 2

A-4 Rackmount Remote Enclosure .................................................................................................A - 3

A-5 Recommended Customer Process Connection and End Support Configuration ............A - 4

A-6 Alternate End Support Configuration . .. .. ...............................................................................A - 5

Tables

2 -1 Interconnecting Cable Size (AWG) . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. ... .. ... ... .. ... .. ... .. ... ... .. ... .. ... ..2 - 3

2- 2 Connector J4 Signal Information . .. .. . .. . .. . .. . .. . .. . .. . ... .. . .. . .. . .. . .. . .. . .. . ... .. . .. . .. . .. . .. . .. . ... .. . .. . .. . .. . .. . .. . ...2 - 7

2-3 Connector J2 and J3 Signal Information . . .. . .. . .. .. . ... .. . .. .. . ... .. . .. .. . .. . .. .. . ... .. . .. .. . ... .. . .. .. . .. . .. .. . ... .. . ..2 - 8

3 -1 Key Functions . ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... .. ...3 - 2

3 -2 Units of Measure and Abbreviations . .. .. .. .. .. ...........................................................................3 - 7

3 - 3 Relay Assignments by Parameters . .. ...... .. ...... .. ...... .. ..... .. ...... .. ...... .. ...... .. ...... .. ..... .. ...... .. ...... .. .3 - 10

3 - 4 Commands and Responses for Protocol ..... ....... ... ....... ....... ....... ... ....... ....... ....... ....... ... ....... ....3 - 17

5 -1 Quick Check Troubleshooting . .... .. ..... .. ..... .. ..... .. ..... .. .... .. ..... .. ..... .. ..... .. ..... .. .... .. ..... .. ..... .. ..... .. .5 - 1

5- 2 Resistances at J1 Connector Plug on the Backplane Board . .. . .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. ..5 - 4

5 - 3 Resistances at TB1-HD1 Terminal Connector .. .. .. ........ .. .. ........ .. .. ........ .. .. ........ .. .. ........ .. .. .. ....5 - 5

Doc. No. 003185 Rev. B xi Model MT91 Multipoint Flowmeter

FLUID COMPONENTS INTL

Symbols

The following symbols are used throughout the manual to draw your attention to items or procedures that require
special notice or care.

Warning:

Caution:

Note:

Warns of possible personal danger to those handling the equipment.

Cautions against possible equipment damage.

Contains important information.

Model MT91 Multipoint Flowmeter xii Doc. No. 003185 Rev. B